Patent Application
20200330270
A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
Trademarks used in the disclosure of the invention and the applicants make no claim to any trademarks referenced.
The present invention relates generally to the field of medical devices and, more specifically, to a handheld device that stimulates the meibomian gland of the eyelid mechanically.
For most people, once they develop meibomianitis, the condition lasts a lifetime. Untreated meibomian gland disease can lead to ocular infection and/or inflammation of the eyelids (referred to as posterior blepharitis). Posterior blepharitis, if untreated, can lead to corneal disease, which can lead to uncorrectable blurred vision and blindness, in severe cases.
Meibomian gland dysfunction, “Dry eye” and chronic marginal eyelid inflammation are widespread problems, especially in middle age and geriatric populations worldwide. In fact, “Dry eye” is the world's most common eye disease and the problem is so widespread that this topic is covered in virtually every ophthalmic medical textbook, and is the sole focus for groups of international researchers such as the Tear Film and Ocular Surface Society. “Dry eye” indicates the lack of quantity and/or quality of the tear film. In the human eye, the tear film covering the ocular surfaces is composed of three layers. The innermost layer in contact with the ocular surface is the mucus layer, comprised of many mucins. The middle layer, comprising the bulk of the tear film, is the aqueous (water) layer, and the outermost layer, is a thin (less than 250 nm) layer (“lipid layer”) comprised of many lipids. The typical upper eyelid has about 25 meibomian glands and the lower eyelid has about 20 meibomian glands. The meibomian gland orifices open onto the eyelid margin at and around the junction of the inner mucous membrane and the outer skin of the eyelids; that junction is termed the mucocutaneous junction.
Dry eye disease is the result of a malfunction in the tear. Tears of the eye are made from different elements. The majority of the tear film is thin fluid that comes from the lacrimal gland, which is located directly above the eye. The quantity and quality of this fluid is usually not the problem. The meibomian glands, which are located throughout both the upper and lower eyelids and number in the range of twenty per lid, secrete an oily material (lipids), that keeps the watery part of tears (i.e., the fluid secreted by the lacrimal gland) from evaporating. This material is normally secreted/expressed with each blink. It is the dysfunction of these glands that is the problem for most people who suffer from dry eye conditions.
In individuals with healthy tear secretion, the oily material secreted by the meibomian glands is relatively warm and runny. As the normal human ages, the outflow of the meibomian glands decreases, thereby reducing tear contact time and causing a marked decrease in tear quality. In some individuals with long-stand meibomian gland dysfunction, secretions may cease altogether. As a result, the oily material that should have the consistency of olive oil, is instead semi-solid, like butter. When this happens, it is not easily secreted from the eyelid without being physically massaged.
The upward phase of blinking causes the upper eyelid to pull a sheet of the lipids secreted by the meibomian glands upward and over the other two layers of the tear film, thus forming a type of protective coating which limits the rate at which the underlying layers evaporate. Thus, a defective lipid layer or an incorrect quantity of such lipids can result in accelerated evaporation of the aqueous layer, which in turn, causes symptoms such as itchiness, burning, irritation, and dryness, which are collectively referred to as “dry eye”. When left untreated, the consequences of dry eye can be severe, and even result in loss of vision (e.g., from desiccation of the corneal epithelium, ulceration and perforation of the cornea, or an increased incidence of infectious disease).
Dry eye states have many etiologies. A common cause of dry eye states is a disorder in which the glands are obstructed or occluded, usually referred to as “meibomian gland dysfunction” (“MGD”). Meibomian gland dysfunction is frequently the result of keratotic or biofilm obstructions which partially or completely block the meibomian gland orifices. Such obstructions compromise the secretory functions of the individual meibomian glands. More particularly, these obstructions can comprise combinations of bacteria, sebaceous ground substance, dead cells, and/or desquamated epithelial cells.
Additional causes of the dysfunction of the lipid layer are associated with eyelid margin inflammation (e.g., anterior and posterior blepharitis, hordeolum, sty, chalazion, and rosacea). The etiological factors of many of these inflammations include an overgrowth of bacteria (and/or parasites) and their toxic waste. These bacteria not only cause the lipid tear film to dysfunction, but they also destroy and block the very lipid-producing infrastructure by attacking the glands in the eyelid skin. Unfortunately, the particular types of bacteria and parasites that cause the inflammation/infections are common. The chance of having these on the eyelids is nearly 100%. By themselves, they are not dangerous, but it is the overgrowth of the biofilm and their toxic waste on the eyelid margin and the eyelashes, that must be avoided. Allowing the bacteria and parasites to proliferate must be prevented, especially if one is diagnosed as a dry eye sufferer.
While the tear film operates as a singular entity and all of the layers are important, the lipid layer, which is secreted from the meibomian glands, is of particular significance as it functions to slow the evaporation of the underlying layers and to lubricate the eyelid during blinking; such slowing of evaporation and lubrication of the eyelid largely prevent “dry eye syndrome and/or Ocular Surface Disease”.
Thus, to summarize, the meibomian glands of mammalian eyelids (e.g., human), secrete oils that prevent evaporation of the tear film and provide lubrication to the eye and eyelids. These glands can become blocked or plugged by various mechanisms leading to so-called “dry eye syndrome and/or Ocular Surface Disease”.
While not the only cause, meibomian gland dysfunction is believed to contribute to or be the primary cause of approximately 86% of dry eye syndrome. Dry eye syndrome is characterized by a blockage of the meibomian glands, which prevents normal lipid secretions from flowing from the meibomian glands to form the lipid layer of the tear film.
Various treatment modalities have been developed to treat the dry eye condition, including drops which are intended to replicate and replace the natural tear film, and pharmaceuticals which are intended to stimulate the tear producing cells. Various heating devices are commercially available that are designed to assist in unclogging the meibomian glands by liquifying accreted meidbum blockages of the meibomian glands. Other techniques involve manual expression of the glands and manual scrubbing of the eyelid margins, which are difficult for a patient to actually accomplish without assistance of a trained professional.
Eye drops such as REFRESH ®, SOOTHE®, and SYSTANE® brand eye drops are designed to closely replicate the naturally occurring healthy tear film. However, their use and administration are merely a treatment of symptoms and not of the underlying cause. The effect of applying eye drops is short-lived. Further, the use of drops is generally for an indefinite length of time and consequently, extended use can become burdensome and costly.
Since dry eye is exacerbated by eyelid margin debris and bacterial overgrowth, daily eyelid hygiene is often prescribed by physicians and recommended by health institutions worldwide. This is for the life of the patient, because, as mentioned, dry eye is chronic, with no known cure. Unless proper eyelid hygiene is instituted, meibomian gland dysfunction will likely progress and dry eye syndrome will only worsen with age.
Herein lie the unsolved problems. The existence of a safe and easy to use eyelid care device that enables self-administered eyelid treatment using a motorized handpiece is needed. Currently the prior art motorized appliances are for clinical use. A second problem is the risk of patient injury during training of eyelid care professionals, and of lay persons who use a motorized eyelid care appliance for cleaning their own eyelids (“self-administered cleaning” or “SA Cleaning”) or for cleaning others' eyelids (“second party cleaning” or “SP Cleaning”). The “second party” can be a pet (blepharitis is common in dogs and cats). A third problem is that the prior art eyelid care devices with motorized handpieces use unidirectional rotary tools (aka “heads”) that become entangled with hair. A fourth problem is that eyelid care devices with rotary tools cause many patients to flinch when the tool first contacts the eyelid margin. Such flinching increases the risk of contact by the tool with the cornea, sclera, or other parts of the eye and resulting in laceration or other injury. A fifth problem is a lack of instrumentation of prior art motorized eyelid care devices, for which instrumentation (e.g., proximity monitoring, cleaning efficacy) and features (e.g., safety shutoff) would enable safer use of an eyelid care device as well as data collection and analysis of clinical signs and efficacy of cleaning.
Additionally, the ability to massage the meibomian glands while the eye is closed is beneficial to a majority of patients that have difficulty controlling the eyelid to allow direct stimulation of the meibomian glands.
People tend to wash their face, but not their eyelids. Eyelid hygiene should optimally be performed on a daily basis for maximum efficacy and optimal hygiene. Currently only manual scrubbing methods with cloths or fingers are available for daily home use, but such manual methods are like brushing one's teeth with a washcloth. Just as brushing one's teeth with a washcloth does not clean the gingival sulcus or mesio-distal aspects of teeth, an eyelid scrub typically contacts only the anterior ciliary margin and does not clean the entire confluence of the mucosal surface of the conjunctiva and the cutaneous epithelium. Even though daily eyelid hygiene is critically important for patients with an eyelid disease, there is typically no compliance by patients for whom SA Cleaning is ordered by their ophthalmologist. Due to a lack of alternatives, “baby shampoo” and a washcloth or cotton-tipped swab is often recommended by ophthalmologists for a patient's SA Cleaning. This current “prescription” for eye hygiene has significant non-compliance issues, i.e., patients fail to perform SA Cleaning. For instance, in a “baby shampoo regimen”, the baby shampoo is mixed with warm or hot water in a prescribed ratio, and the solution is then applied with non-sterile applicators such as finger tips, cotton tips, or washcloths (typically, unsanitary). This results in an unsanitary process for the patient.
Although commercial “eyelid scrubs” are available in several forms, such as impregnated, pre-moistened towelettes or pads, or as bottled cleansers applied to a non-sterile applicator pad or to fingertips, such eyelid scrubs do not improve patient compliance or efficacy of the treatment. These rely on the individual to perform vigorous back and forth scrubbing of all four eyelid margins, which is cumbersome, time consuming, sometimes painful, and has uneven results. These factors are all strong disincentives to following an eyelid cleaning regimen.
Preventive and therapeutic interventions need to be more easily implemented at an earlier age or stage, of dry eye syndrome development, to decrease the likelihood of chronically scarred and/or dysfunctional meibomian glands. Lack of patient compliance is further evidenced by way of disproportionate commercial sales for eye care products. In contrast to the current US eyecare market for eye drops of $1 billion (excluding contact lens solutions), eyelid scrubs show less than $8 million in retail sales, which is a clear indication that people simply do not clean their eyelids.
Therefore, what is needed in the art is a system that is easy for the medical professional and patient to use to treat meibomianitis.
The invention in one form is directed to a device which comprises of a power supply (e.g., battery), motor, detachable head, drive system that causes oscillation of the head, controls, instrumentation, and a housing. “Distal” means herein toward the end of the eyelid care appliance on which the head is mounted. “Proximal” means herein toward the end of the eyelid care appliance in which the power supply and motor are mounted.
The device is specifically designed and configured to massage the eyelids thereby eliminating any issue with damaging the eye by way of contact by the tool with the cornea, sclera, or other parts of the eye and resulting laceration or other injury.
A bristlehead or Soft-Tip that is detachably mated with the head receiver and protrudes from the housing along a second axis of the eyelid care appliance, the second axis being substantially perpendicular to the first axis, the bristlehead or Soft-Tip comprising a mount having a polygonal post configured to removably couple with a corresponding socket of the head receiver, the post and the socket oriented along the second axis, wherein friction between the post and the socket is configured to keep the bristlehead or Soft-Tip coupled to the head receiver during use. A bristlehead or Soft-Tip may be configured in a wide range of embodiments, some of which include various types of bristles, adjustable bristles, combinations of bristles and sponge, and other materials of varying topologies and degrees of abrasiveness.
A preferred embodiment of the eyelid care appliance is an “integral” eyelid care appliance comprising a power supply, motor, drive system that transmits motive force from the motor to oscillate a head receiver, motor controls, a proximity system, and proximity annunciator contained in a housing, wherein a bristlehead or Soft-Tip is detachably mated with the head receiver and protrudes from the housing and oscillates when the motor is powered on. A drive module (defined below) and an eyelid care module (defined below) are the principal elements contained in the housing. An alternate “two-piece” embodiment comprises a detachable neck that mates with a handpiece; the handpiece comprises the power supply, motor, and part of the drive system; the detachable neck comprises the head and remainder of the drive system. In a two-piece embodiment, the components of the eyelid care appliance can be distributed in whole or in part between the handpiece and the detachable neck, depending upon the component and configuration involved. As used herein, “handpiece” means the proximal portion of a two-piece embodiment of the invention, which proximal portion is gripped by a user.
An alternate “two-piece” embodiment of the eyelid care appliance comprises a handpiece and a detachable head and/or neck, a power supply, motor, proximity annunciator, and motor control being contained in the handpiece, a head receiver being contained in the neck and connected to the motor through a drive system with portions of the drive system distributed in the neck and in the handpiece and with a coupler at the interface of the handpiece and neck, which drive system transmits motive force from the motor to oscillate the head receiver, wherein a bristlehead or Soft-Tip is detachably mated with the head receiver, protrudes from the neck, and oscillates when the motor is powered on, and portions of a proximity system are distributed in the detachable neck and in the housing.
In the embodiments of the invention, the power supply (typically a replaceable and/or rechargeable battery) powers a DC motor, and when the motor is powered on, the motor (and drive translator, if the motor outputs unidirectional rotary motion, which motion is translated to oscillating motion) causes the oscillation of a driveshaft (or equivalent means of transmitting motive force, e.g., in a two-piece embodiment, an electric motor in a handpiece with magnetic or mechanical coupling to a detachable neck). The oscillating driveshaft causes the head receiver to oscillate, which causes the bristlehead or Soft-Tip mounted in the head receiver to oscillate. The eyelid care appliance is typically battery powered but can be powered by a power supply connected to an electrical outlet.
To use the eyelid care appliance claimed herein, a user grips the proximal portion of the appliance, powers on the appliance, and applies the oscillating head on the distal end of the appliance, together with a solvent or cleanser, to the eyelid to scrub the eyelid. In a preferred embodiment for SA Cleaning and SP Cleaning, the eyelid care appliance comprises a drive module, drive controls and annunciator, eyelid care module with adjustable head angle, proximity sensor, proximity controls and annunciator, and related data channels. A preferred configuration of proximity sensor and annunciator is a video camera, a Bluetooth ®, or similar near field communication channel (Zigbee, Bluetooth, Bluetooth BLE, ANT+, WIFI, NFC or near field communications channel), and a smartphone or tablet computer with near field communications capability and display (collectively, “smart device”), that is paired with the eyelid care appliance. The video image from the eyelid care appliance is transmitted through the communication channel and displayed on the smart device. A user of the eyelid care appliance essentially “flies” the head onto the eyelid and moves the head across the eyelid. By focusing on the display, the user becomes immersed in control of the head rather than fearful of poking himself or herself in the eye. The proximity system can evaluate or score user performance as if the use of the eyelid care appliance were a video game. The interface between the device and smartphone application can monitor use of device, time, date, location and integrate the collected data through the smartphone application into the NSM portal for their reference and doctor compliance management.
Alternatively the instant invention for stimulating the meibomian glands of the eyelid comprising a handle/Main Housing; a head that is removable and neck and handle/Main Housing, the head comprising an bristlehead or Soft-Tip that oscillates to provide a massaging action to an eyelid and that comprises a front end that is concave in shape to fit over an eyelid; a heater located inside of the bristlehead or Soft-Tip; a temperature sensor located inside of the bristlehead or Soft-Tip, wherein the temperature sensor causes the bristlehead or Soft-Tip to heat to a predetermined temperature and then stop heating; and a charging base that supplies power to a motor that causes the bristlehead or Soft-Tip to oscillate, wherein the motor comprises a motor shaft.
In an alternative preferred embodiment, the device further comprises a switch that allows the bristlehead or Soft-Tip to oscillate with or without heating. Preferably, the handle/Main Housing comprises a light emitting diode that indicates to a user whether the batteries are being charged and whether the bristlehead or Soft-Tip is heating.
In yet another preferred embodiment, oscillation of the bristlehead or Soft-Tip is effectuated by an oscillation assembly located within the handle/Main Housing and comprising of a cam system which can be described as: a first stationary arm extending inward from an inner wall of the head; a rotating wheel that is connected to a rotating shaft that is in turn connected to the motor shaft; a second stationary arm extending inward from the inner wall of the head directly opposite the first stationary arm, the second stationary arm comprising a horizontal slot; and a connecting member with a first horizontal extension that is inserted into an aperture located off-center on the rotating wheel and a second horizontal extension that is inserted into the horizontal slot in the second stationary arm, wherein the connecting member comprises a center and pivots about a shaft that extends through an aperture in the center of the connecting member and that is fixedly attached to the bristlehead or Soft-Tip; wherein as the motor shaft rotates, the rotating shaft also rotates, causing the rotating wheel to rotate, the first extension on the connecting member to rotate in a circular motion, the second extension to move laterally within the slot on the second stationary arm, and the connecting member to pivot about the shaft that extends through the center of the connecting member, thereby causing the bristlehead or Soft-Tip to oscillate in an elliptical path.
In a preferred embodiment, the bristlehead or Soft-Tip further comprises a bristlehead or Soft-Tip cover that surrounds the front end of the bristlehead or Soft-Tip and that is comprised of a soft elastomer, thermoplastic elastomer, silicone or mixture of silicone and thermoplastic elastomer.
In a preferred embodiment, the bristlehead or Soft-Tip further comprises a bristlehead or Soft-Tip which is irreplaceably configured to attach and detach from the neck or handle/Main Housing and is capable of being held captive to the neck or handle/Main Housing by a magnet, clasp, cam, or locking mechanism.
In a preferred embodiment, the bristlehead or Soft-Tip further comprises a bristlehead or Soft-Tip which comprises of a soft elastomer, thermoplastic elastomer, silicone or mixture of silicone and thermoplastic elastomer or other soft plastic and has bristles surrounding a hollow cavity or recess on the head. The hollow cavity or recess on the head being centered on the primary axis through the center of the head face so as to facilitate the application of topical agents for liquids, gels, ointments, cleansers, solvents, gases, powders or other fluid or fluidizable medicaments deposited in the recess of the tip to be applied to the eyelid surface when the device of the invention is in use.
In a preferred embodiment, the bristlehead or Soft-Tip further comprises a bristlehead or Soft-Tip which comprises of a soft elastomer, thermoplastic elastomer, silicone, mixture of silicone and thermoplastic elastomer or other soft plastic and has an anti-inflammatory agent added to the matrix that makes up the bristlehead or Soft-Tip, such that the anti-inflammatory agent is applied to the eyelid surface when the device of the invention is in use.
In a preferred embodiment, the bristlehead or Soft-Tip further comprises a bristlehead or Soft-Tip which comprises of a soft elastomer, thermoplastic elastomer, silicone, mixture of silicone and thermoplastic elastomer or other soft plastic and has an anti-infective agent added to the matrix that makes up the bristlehead or Soft-Tip such that the anti-infective agent is applied to the eyelid surface when the device of the invention is in use.
In a preferred embodiment, the bristlehead or Soft-Tip further comprises a bristlehead or Soft-Tip which comprises of a soft elastomer, thermoplastic elastomer, silicone, mixture of silicone and thermoplastic elastomer or other soft plastic and has an aminoglycosides agent added to the matrix that makes up the bristlehead or Soft-Tip such that the aminoglycosides agent is applied to the eyelid surface when the device of the invention is in use.
In a preferred embodiment, the bristlehead or Soft-Tip further comprises a bristlehead or Soft-Tip which comprises of a soft elastomer, thermoplastic elastomer, silicone, mixture of silicone and thermoplastic elastomer or other soft plastic and has bristles surrounding a hollow cavity on the head so as to be able to massage the eyelid without damaging or irritating it wherein the cavity provides a reservoir that helps maintain lubricity during the treatment by capturing lubricant which would otherwise escape during operation.
In yet another embodiment, the present invention is a method for stimulating the meibomian glands of the eyelid comprising: providing a device with a handle/Main Housing and a head that is removable from the handle/Main Housing, the head comprising a bristlehead or Soft-Tip that oscillates to provide a massaging action to an eyelid; using a heater and temperature sensor located inside of the bristlehead or Soft-Tip to heat the bristlehead or Soft-Tip to heat to a predetermined temperature and maintain the bristlehead or Soft-Tip at the predetermined temperature; using a motor located inside of the handle/Main Housing and to cause the bristlehead or Soft-Tip to oscillate; and applying the bristlehead or Soft-Tip to an eyelid of a user.
It is therefore a primary objective of the invention to provide a means of massaging the eyelid to increase tear production of the meibomian gland and reduce the meibomian gland dysfunction.
A further understanding of the nature and advantages of particular embodiments may be realized by reference to the remaining portions of the specification and the drawings, in which like reference numerals are used to refer to similar components. When reference is made to a reference numeral without specification to an existing sub-label, it is intended to refer to all such multiple similar components.
a: Eyelid Care Appliance, Integral Version, Front Isometric View
b: Eyelid Care Appliance, Integral Version, Rear Isometric View
c: Eyelid Care Appliance, Integral Version, Rear View
a: Convex Head Front View
Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate embodiments of the invention and such exemplifications are not to be construed as limiting the scope of the invention in any manner.
Given existing art methods and devices, it is not surprising that there is little or no compliance to eyelid hygiene by patients. Related art describes an “Eyelid and Anterior Orbit Swab” (to Hamburg, U.S. Pat. No. 4,883,454) and various eyelid cleansers, such as U.S. Pat. Nos. 8,535,736, 8,449,928, and 8,231,912 (to Gilbard), to clean the eyelids, but these rely solely on manual back and forth motion of a device on the eyelid margin and manual application of a cleanser, the entire contents all of which are hereby incorporated by reference.
A number of devices have been invented that apply compression to the anterior and or posterior surface of the eyelids, heat and/or apply electrical microcurrent or sonic energy (which the present invention does not do) to various parts of the body, but none of them is specifically tailored to address the problem of meibomian gland disease. For example, U.S. Pat. No. 4,387,707 (Polikoff, 1983), the entire contents all of which are hereby incorporated by reference, discloses an eye treatment device that applies a fluctuating massaging force against the eye through a flexible wall in a chamber that contains a fluid maintained under a fluctuating pressure. This device does not involve heating of the eyelid.
U.S. Pat. No. 4,918,818 (Hsieh, 1990), the entire contents all of which are hereby incorporated by reference, describes a multi-purpose shaver with a face massaging component. In order to use the face massaging component, the razor holder is detached from the body of the device, and the face massaging component is attached to the body of the device where the razor holder had been. This device does not involve a heating element.
U.S. Pat. No. 6,275,735 (Jarding et al., 2001), the entire contents all of which are hereby incorporated by reference, involves an apparatus for electrical microcurrent stimulation therapy of a body part. This invention is intended to provide electrical microcurrent stimulation around an eye to combat visual system diseases such as age-related macular degeneration (AMD). The inventors claim that microcurrent stimulation will help rejuvenate the cells in the retina to slow or stop degeneration of the eye due to AMD. This invention does not involve any kind of a plate over the eyelid, nor does it involve heating. In a preferred embodiment, the electrical microcurrent is applied with a probe tip comprised of a cotton swab moistened or dampened with a conductive gel.
U.S. Pat. No. 7,069,084 (Yee, 2006), the entire contents all of which are hereby incorporated by reference, discloses a method for treating meibomianitis by massaging the muscle fibers in the eyelid that express the meibomian gland. The device is intended to cause the meibomian glands to expel any obstructing accreted meibum in the meibomian glands. According to the inventors, the obstructing plug may be composed of hardened lipids (as described above), cellular debris or some combination thereof. The invention involves the placement of electrical contacts on the eyelid and the application of an electrical current to the eyelids via the electrical contacts, which in turn induces muscular contractions within the eyelid. Unlike the present invention, this particular invention does not try to liquify or express accreted meibum from the internal Meibomian glands.
U.S. Pat. No. 7,122,013 (Liu, 2006), the entire contents all of which are hereby incorporated by reference, describes an eye massage device comprising a mask with left and right portions and left and right diaphragms in each eye portion. The mask is connected to a pneumatic-powered cylinder assembly via a plastic tube. The pneumatic-powered cylinder assembly comprises a cylinder that alternately delivers compressed air to the mask and draws air from the mask. In this manner, the eyes are massaged. In one embodiment, spacers are located between the diaphragms and the eyes as a means for absorbing tears secreted by the eyes during operation. This device is not handheld, and it does not provide heat to the eyelid.
U.S. Pat. No. 7,384,405 (Rhoades, 2008), the entire contents all of which are hereby incorporated by reference, involves a cosmetic instrument with a number of different interchangeable heads. These heads include abrasive attachments, oxygenating attachments, brush attachments, thermal attachments, and light radiating attachments. These various types of treatment attachments are moved over an area of skin and/or body part by the user manipulating the handle/Main Housing and also by a motion generator that moves the head portions. The motion generator may move the attachments by vibrating, spinning, oscillating, or propagating sonic waves through the head portions. The purpose of the thermal attachment is to facilitate the application of a cosmetic composition or solution onto the skin. The thermal attachment is moved over an area of skin or a body part in “upward circular or randomly directed strokes” until the composition or solution has been worked into, cleaned, and/or polished the skin or body part. This device is not specifically tailored to facilitate the application of a cosmetic composition or solution onto the skin of an eyelid disorder.
U.S. Pat. No. 7,637,878 (Lin, 2009), the entire contents all of which are hereby incorporated by reference, discloses an eye massaging device with built-in air pump and actuation elements, an inflatable fomentation member, and a belt member to which the main member and fomentation member are attached. The main member contains a number of slidably engaged pieces that elastically expand along with the belt member when the device is tied around a user's head. The fomentation member is shaped like an eyeshade and comprises a first outer piece, a second outer piece, an air bag and a thin heating element. The air pump and leakage valve inflate and deflate the air bag to press the warm heating element against the eyes with various levels of pressure. This device treats both eyes at once and would not be effective in treating a single eyelid.
U.S. Patent Application Pub. No. 2002/0156402 (Woog et al.), the entire contents all of which are hereby incorporated by reference, describes a device that applies sonic energy to various parts of the body for therapeutic purposes. The device comprises an applicator end at which a predetermined amplitude is generated under applied loads. This device does not involve massage of the eyelid.
U.S. Patent Application Pub. No. 2008/0200848 (Avni), the entire contents all of which are hereby incorporated by reference, involves a vibrating device that the inventor claims may be applied directly to a closed eyelid. This invention does not involve the application of heat to the eyelid, and the application does not include a single figure showing what the device would look like as applied to the eyelid.
None of the above inventions combine utilizing massage to effectively treat meibomian gland disease. What is needed is a handheld device that is easy to use, mechanically configured for placement over an eyelid, and that accomplishes massaging of the eyelid at the same time.
Accordingly, it is an object of the present invention to provide a handheld, battery-operated device with an oscillating, curved plate (for placement over the eyelid) that has a thermostatically controlled heating element within it. The oscillating motion of the curved plate applies a massaging action to the eyelid, and the heater is preferably controlled to achieve the optimum temperature. The present invention simultaneously liquefies and mobilizes the lipids in the meibomian glands, thereby causing them to move toward the gland orifices. With regular use, these oils remain less viscous, and the tear quality improves.
At least one eyelid cleaning device, the BlephEx ® device described in US Published Patent Application Nos. 2014/0031845, 2014/0052164, and 2014/0214062, the entire contents all of which are hereby incorporated by reference, uses a design and unidirectional rotation virtually identical to that of ophthalmic burrs, but with a “sponge head” instead of a burr. Like ophthalmic burrs, the BlephEx® device drives a head with a full rotary motion and is for use by eyecare professionals. An “eyecare professional” is a person skilled in the art of ocular hygiene, such as ophthalmologists, optometrists, nurses trained in eyecare, and technicians trained in eyecare. The BlephEx® handpiece rotates a small sponge, is guided along the eyelid margin by an eyecare professional, removes scurf and debris, and exfoliates the eyelids. The key disadvantages of the BlephEx® device are its “motorized swab” design, unidirectional spinning (rotating) head (as distinct from an oscillating head moving in a reciprocally arcuate path), lack of instrumentation, and lack of safety features. Using an oscillating head to clean eyelids has significant advantages over existing art eyelid cleaning devices. Oscillating devices tend to be safer than rotary devices; an oscillating head does not have the directional “kick” (i.e., start-up torque) of a rotating head, so there is less chance of a user losing control of the device, e.g., the device jumping out of the user's hand. For that reason, devices with oscillating heads are easier to control than rotary devices. An oscillating eyelid care device does not induce a flinch response in the subject when the head first contacts an eyelid. An oscillating head creates fewer flying debris than a rotary head, making an oscillating head a better choice for work in an area where excessive flying debris might be a nuisance, such as near the eye.
The BlephEx® device can only safely be used by an eyecare professional due to the ergonomics and dynamics (e.g., “motorized swab” form, flinch induction, unidirectional rotation) of the device. The stick-like design (i.e., cylindrical handpiece with long, rotating, longitudinally aligned head) of the BlephEx® device, prevents the use of a BlephEx® device for SA Cleaning, i.e., for a patient to use in performing eyelid cleaning on him/herself. A device with a stick-like design must be used by a second person, typically by an eyecare professional.
Existing powered eyecare devices have heads with a constant unidirectional rotation, which require that the operator manually change the rotational direction (e.g., from clockwise to counterclockwise) of the head and retrace the path of cleaning to ensure efficient cleaning. An oscillating head provides better removal of debris and more uniform results than devices with unidirectional head rotation, which is the reason that oscillating heads are used in powered toothbrushes. The head of the driven attachment of a commercial, off-the-shelf powered toothbrush has a “brush head”, and such driven attachment is called a “brush head attachment”. Clinical studies in the dental care literature have shown that powered toothbrushes with an oscillating brush head are significantly better in reducing plaque and gingivitis compared to a manual toothbrush and brushing technique, and also compared to powered rotary toothbrushes. Just as the oscillatory movement of a powered toothbrush brush head ensures better cleaning than manual scrubbing, because a brush head typically oscillates at about 7,000 to 9,000 strokes/minute, the oscillatory movement of a powered handpiece coupled to an eyelid care module ensures better cleaning than manual scrubbing of the eyelids. The following publications, the entire contents all of which are hereby incorporated by reference, describes the comparative advantages of powered, oscillating head toothbrushes.
A comparative study of plaque removing efficiency using rotary electric and manual toothbrushes. Swed Dent J. 1991; 15:229-234. Cochrane Database Syst Rev. 2005; 18(2):CD002281.
J Am Dent Assoc. 2003 September; 134(9):1240-4. Manual versus powered toothbrushes: the Cochrane review.
Niederman R; ADA Council on Scientific Affairs; ADA Division of Science; Journal of the American Dental Association. Source:
DSM-Forsyth Center for Evidence-Based Dentistry, The Forsyth Institute, Boston, Mass. 02115, USA. rniederman@forsyth.org CONCLUSIONS: Powered toothbrushes with a rotation-oscillation action achieve a significant, but modest, reduction in plaque and gingivitis compared with manual toothbrushes.
National Institutes of Health Cochrane Database Syst Rev. 2005 Apr. 18; (2):CD002281. Manual versus powered toothbrushing for oral health.
Robinson P G, Deacon S A, Deery C, Heanue M, Walmsley A D, Worthington H V, Glenny A M, Shaw W C. Source: Department of Dental Public Health, School of Clinical Dentistry, University of Sheffield, Claremont.
Crescent, Sheffield, UK. peter.g.robinson@sheffield.ac.uk, CONCLUSIONS: Powered toothbrushes with a rotation oscillation action, reduce plaque and gingivitis more than manual tooth brushing.
Powered/electric toothbrushes compared to manual toothbrushes for maintaining oral health—Cochrane Report June 2014. Yaacob M, Worthington H V, Deacon S A, Deery C, Walmsley A, Robinson P G, Glenny A. This article reviews 56 studies published from 1964 to 2011 in which 5068 participants were randomized to receive either a powered toothbrush or a manual toothbrush. Majority of the studies included adults, and over 50% of the studies used a type of powered toothbrush that had an oscillation mode of action (where the brush head rotates in one direction and then the other, aka reciprocally arcuate). CONCLUSIONS: The evidence produced shows benefits in using a powered toothbrush when compared with a manual toothbrush. There was an 11% reduction in plaque at one to three months of use, and a 21% reduction in plaque when assessed after three months of use. For gingivitis, there was a 6% reduction at one to three months of use and an 11% reduction when assessed after three months of use.
One advantage of oscillating brush head powered toothbrushes, in general, is their ability to remove a greater amount of plaque in a given period of time than manual brushes. One study (Preber H, Swed. Dent. J. 1991; 15:229-234) found that 75% of dental biofilm was removed in 15 seconds with an oscillating powered toothbrush; the same amount of plaque removal required twice as long with a manual brush. The results of a more thorough cleaning process with oscillating powered toothbrushes can be extrapolated to eyelid hygiene using an oscillating powered device. However, powered toothbrushes cannot be easily adapted to eyelid care, given the large size of the handpiece, brush head attachment, and brush head, the stiff bristles on toothbrush brush heads (which would lacerate the eyelid margin, cornea, and sclera if used to clean eyelid margins), and the expense of disposable “necks” (the “neck” is the detachable distal portion of a powered toothbrush that terminates in a non-removable brush head, which means the entire neck must be discarded when the brush head wears, rather than disposal of only the brush head). Because powered toothbrush necks are not easily removed and are used for months before replacement, the brush heads become unsanitary. For sanitary eyelid care, the head of a device must be easily replaceable and inexpensive, or durable and autoclavable.
There is need for an eyelid care appliance that enables “self-administered cleaning” or “SA Cleaning”.
Cleaning reduces risk of patient injury during training of eyelid care professionals, reduces risk of patient injury during SA Cleaning and SP Cleaning, provides an oscillating head, provides instrumentation and safety features that improve efficacy of eyelid care, provides an inexpensive and easily replaceable head (and alternatively, a durable and autoclavable head), and ideally provides an adjustable head angle and optionally provides control over oscillation frequency and angular sweep.
Recent research has concluded that meibomianitis is a condition that affects a vast number of individuals; some authors cite numbers as high as thirty percent of the population at fifty years of age. Researchers also agree that the condition becomes more common with age, which means that the percentages increase with an aging population. The disease is asymptomatic for some period of time—months to years—but almost always progresses. Eye physicians are well aware of this fact and the need to begin treatment as early as possible to alleviate damage from chronic disease. The very fact that the disease, in its early stages, is asymptomatic, coupled with the fact that treatments to date have their drawbacks or contraindications, leads doctors to allow the condition to go untreated until it becomes symptomatic and damage is done. In the later stages of the disease, treatment is more complex, costly and less-effective. The present invention will allow physicians to direct patients to a treatment method that is noninvasive, simple to use, and should provide years of service without ongoing expense.
The eyelid care appliance described and claimed herein solves the proceeding problems by providing, in a preferred embodiment, an oscillating, detachable sponge head, adjustable head angle, an ergonomic powered handpiece, sensors and other controls and instrumentation (such as, controls, indicators, displays, video, and/or data transmission), and auxiliary functions (cleanser, solvent, and medicament dispensing, gas and liquid dispensing, heating, and suction) that improve professional eyelid care, SA Cleaning, and SP Cleaning. The system utilizes cleansing action applied to the eyelids to effectively clean the eyelid and stimulate the meibomian glands.
In addition to meibomian gland dysfunction, other more acute eyelid conditions, which can occur at any age, are treated with warm massage. They too could be treated with the present invention; such common conditions as hordeolum and chalazion fall into this category.
In this application the use of daily disposable head means a soft-tip, spongehead, bristlebrush, Soft-Tip, bristlehead, sponge mount, sponge mount/head receiver interface or a round polymer head; all refer to the removable head of the device, and the terms are used interchangeably.
In this application the use of the singular includes the plural unless specifically stated otherwise and use of the terms “and” and “or” is equivalent to “and/or,” also referred to as “non-exclusive or” unless otherwise indicated. Moreover, the use of the term “including,” as well as other forms, such as “includes” and “included,” should be considered non-exclusive. Also, terms such as “element” or “component” encompass both elements and components comprising one unit and elements and components that comprise more than one unit, unless specifically stated otherwise.
In this application the term silicon refers to a silicone or polysiloxane which can be any of a number of polymers that include any synthetic compound made up of repeating units of siloxane, which is a chain of alternating silicon atoms and oxygen atoms, combined with carbon, hydrogen, and sometimes other elements.
In the application the term silicone means any a soft elastomer, thermoplastic elastomer, silicone, mixture of silicone and thermoplastic elastomer
In the application the term sponge means any medical-grade polyurethane foams or cellulose sponge which can include low-density polyether, polyvinyl alcohol (“PVA”, which is highly absorbent), polyester (almost as absorbent as PVA, but more durable and has larger pores), and other polymers.
In this application the use of the term SA cleaning means “self-administered cleaning”.
In this application the use of the SP cleaning means cleaning others' eyelids by a second party.
Numerical values for volumes and masses in this specification are shown in U.S. customary units. Teaspoons and tablespoons are taken as their volumetric equivalent units in the Avoirdupois system. Since accelerations and forces are not relevant to the description or use of the invention, U.S. customary units of weight such as ounces and pounds shall indicate their customary equivalent masses as stationary objects.
The present invention, the eyelid care appliance, is directed to novel devices and methods effective for restoring and maintaining good eyelid hygiene and capillary perfusion of the eyelids, lid margins and their adnexa, e.g. both prophylaxis and therapeutic treatment. The methods and devices disclosed herein include those for SA Cleaning and SP Cleaning, which enable better patient compliance with prescribed eyelid cleaning regimens, especially daily prophylaxis. The incidence of blepharitis increases as a function of age. If a person's neurological deterioration prevents them from performing SA Cleaning, a lay care-giver can perform SP Cleaning of such person's eyelids using the eyelid care appliance. These methods involve the easy and safe mechanical cleaning of an eyelid by eyecare professionals in clinical settings and by lay individuals in any location in which manipulation of the individual's eyelids or the eyelids of a second party is safe. “Second party” includes animals, especially household pets, horses, and farm animals. The present invention provides improved cleaning and capillary perfusion of the eyelid margins and meibomian gland orifices and enables a patient to clean his or her eyelids without assistance. The invention solves the technical problems of improved eyelid cleaning and training in eyelid cleaning, especially the technical problems in SA Cleaning and SP Cleaning. Devices such as those described in U.S. Patent Publication 2015/0182415 and U.S. Pat. No. 10,314,763 by Olkowski et al. are designed to clean the eyelid margins and meibomian gland orifices of cellular and sebaceous debris, the disclosure is hereby incorporated by reference in its entirety.
The key advantage of the instant invention is safe and effective daily use in the home performed by the patient or non-professionally trained.
Referring to
The application of the instant invention is shown in
As defined by the instant invention the term “head” means a soft-tip, spongehead, bristlebrush, Soft-Tip, bristlehead, sponge mount, sponge mount/head receiver interface or a round polymer head and all, refer to the removable head of the device unless otherwise denoted, and are fabricated from any combinations sponge, silicone and bristle head, or head made with materials other than sponge and bristles such as a soft elastomer, thermoplastic elastomer, silicone, mixture of silicone and thermoplastic elastomer. The motive action of the driving means is transmitted through from the motor through the drive system to the head receiver. The eyelid care appliance is always used with a cleanser and/or lubricant that is applied to the head and/or directly to the eyelids being cleaned. In addition to cleanser and/or lubricants, medicaments can be applied to the head and/or directly to the eyelids being cleaned. When a user turns on an eyelid care appliance, and applies the oscillating head to an eyelid, oscillation of the head cleans, massages, and stimulates the eyelash margins, eyelid margins and meibomian gland orifices of cellular and sebaceous debris. Such cleaning prevents, for an ensuing period, gland obstruction and promotes health of the glands in the eyelid. The oscillation frequency and angular sweep can optionally be user-selected and implement via printed circuit board 11, control of motor 7. Oscillation frequency of the head is nominally 7,000 to 9,000 strokes/minute and angular sweep of the head is nominally 70 degrees (i.e. the head travels 70 degrees forward followed by 70 degrees backwards). Higher frequency pulsation (nominally 20,000 to 40,000 pulses/min.) can optionally be generated by the motor 7 and fed to the head receiver 6. The ability to achieve cleaning of the patients meibomian gland orifices by applying the oscillating head to the eyelid, improves the patient cleaning experience of the eyelid margin.
The vibration and/or sonic action of the disposable tip, facilitates stimulation of the Meibomian glands and capillary perfusion as previously described.
The vibration and/or sonic action facilitates use of the device over a closed eyelid and, therefore, in closer proximity to long axis of the Meibomian glands, thereby increasing the energy delivered to the entire length of the Meibomian glands. Compared to the direct method, applying the disposable tip to the eyelid margin, in which the energy is transmitted primarily to the openings of the Meibomian glands, this indirect method facilitates additional therapeutic effects by primarily delivering energy to the long axis of the Meibomian glands which can extend 4-5 mm into the body of the eyelid.
An additional use for the instant invention when the indirect method is used, for stimulation is improving capillary perfusion and cleaning the eyelash margins. Many patients suffer from blepharitis. Used in this fashion the instant invention has a greater therapeutic effect on the follicles of the lashes, promoting greater length and thickness of the eyelashes, while diminishing debris and parasites such as the Demodex mite.
Another embodiment of the device utilizes a piezo electric mechanism to create the therapeutic effect. The frequency of the piezo electric mechanism adds an ultrasound dimension to the treatment effect.
The soundwaves generated by the piezo electric mechanism and delivered by the disposable tip, penetrate the eyelids vibrating the Meibomian glands, creating an effect similar to lithotripsy, which contributes to breaking up the accreted meibum in the glands, facilitating the expulsion of the accretions.
A basic embodiment of the invention comprises a power supply (e.g. battery), drive module that causes oscillation of a head receiver, detachable head mounted in the head receiver, drive control, and a housing that contains the preceding elements. The housing has a proximal portion, preferably ergonomic, that is easily gripped by hand. The proximal portion of the housing in this embodiment also contains drive control (at least on/off, and optionally status LED(s), oscillation frequency, oscillation sweep angle, and timer). A status LED 207 can indicate simply power on (if lit), or one or more LEDs can additionally indicate battery charge level, head oscillation frequency, and other operational states.
The instant invention can also utilize the LED system for LED light therapy. The preferred therapy color is Red, as Blue decreases oil gland production. However, other LED light colors have been found to be beneficial. Red light therapy is commonly referred to as photo-biomodulation (PBM), low level light therapy (LLLT), soft laser therapy, cold laser therapy, biostimulation, photonic stimulation, low-power laser therapy (LPLT).
The theory behind Red light therapy is that the red light produces a biochemical effect in cells that strengthens the mitochondria. The mitochondria are the powerhouse of the cell—it's where the cell's energy is created. The energy-carrying molecule found in the cells of all living things is called ATP (adenosine triphosphate). Additionally, Red, or infrared, light is used for treating the epidermis, which is the outer layer of skin. When the light is applied to your skin, the epidermis absorbs it and then stimulates collagen proteins.
In theory, more collagen means that your skin will look smoother and fuller, which can reduce the appearance of fine lines and wrinkles. Red LED light is also thought to reduce inflammation while improving circulation, which can give you a healthier glow. A more detailed discussion can be found in https://www.healthline.com/health/red-light-therapy#how-does-it-work? and https://www.healthline.com/health/beaty-skin-care/led-light-therapy
A preferred embodiment of the invention comprises a power supply (e.g., battery), drive module that causes oscillation of a head receiver, detachable head mounted in the head receiver, drive control and annunciator, proximity system, and a housing that contains the preceding elements. The housing has a proximal portion, preferably ergonomic, that is easily gripped by hand. The proximal portion of the housing in this embodiment also contains drive control (described above) and proximity control and annunciator. The details of the proximity system, control, and annunciator depend upon the configuration of the proximity system. In a video proximity system, the control is at least on/off (and optionally typical video controls, such as manual or auto iris, and gain) and the annunciator is preferably a mobile display linked to the video camera by NFC. In this embodiment, proximity system control is preferably performed through one or more software applications (“smart apps”) running on the smart device, and would enable recording video of the eyelid cleaning in the memory of the smart device or of the eyelid care appliance. Proximity system settings performed by smart apps or by applications running on the printed circuit board 11 can include the generation of audible tones that reflect distance between the head and the closest surface and optionally the second closest surface to the head (typically the eyelid margin is closest and the cornea or sclera is second closest surface), colors or icons on the smart device display that indicate distance, or the generation of a glideslope display on the smart device that guides a user in landing the head on an eyelid margin; preferably, one or more lights (e.g., LEDs) on the housing project light in front of the head in video-equipped embodiments of the invention. The output of the proximity system software can include the distance between head and eyelid, the distance between eyelid and eyeball, the battery level, the head oscillation frequency, and other data to assist the user; such output can be displayed on the smart device, as shown in
A further development of the device includes a touch pad and/or activator switch built into the base of the device. Many dry eye disease sufferers are elderly and their hands and fingers may be affected by arthritis and or reduced dexterity. By placing the activator switch or touch pad in the base of the instrument, the instrument can be turned on/off, and operation modes can be changed by grasping the instrument and depressing the base on a hard surface, such as a countertop. When a touchpad is used, simply touching the base of the instrument with the hand/fingers will facilitate operation.
A “bristlehead or Soft-Tip ” is preferred for eyelid care, but other materials and configurations of heads can be used in the invention, particularly for treating areas other than eyelid margins. A spongehead is an alternative configuration and it means a synthetic sponge in a disc, cylindrical, globular, and other shape that is adhered to a “sponge mount”. A head of the invention comprises (i) a bristlehead or Soft-Tip mount with a male or female portion (preferably a male mating portion, such as a post) that mates with a “head receiver” (preferably with a female mating portion, such as a socket) and (ii) a bristlehead or Soft-Tip (or other material adapted for cleaning the eyelid or other areas), selected for use for cleaning a target surface, such as the eyelid. Key selection factors for the bristlehead or Soft-Tip are surface topology, elasticity, shape memory, degree of smoothness, level of porosity, and hydrophilic nature of the head. Material selection determines whether the head is inexpensive, or durable and autoclavable.
The instant invention can be used with any head configuration including bristlehead or Soft-Tip, spongehead, round polymer head, as shown in
A head mount mates with a head receiver that is connected to and driven by the drive system so that the head mated with the head receiver oscillates when the motor is powered on. Friction between the post and socket in the sponge mount/head receiver interface are typically more than adequate to keep the head firmly affixed to the head receiver, but still removable for replacement of the head. Alternatively, a weak adhesive can be applied, or a physical detent used in the plug and socket, to more firmly retain the head in the head receiver, yet permit removal of the head without tools. The sponge mount and head receiver are typically made of a plastic selected to withstand rapid oscillation and devoid of small cavities that can be colonized by bacteria. A post can have any shape that prevents rotation or slippage of the sponge mount when the sponge mount is mated with the head receiver. In addition, a permanent magnet or electromagnet mounted inside the chuck, “pulls” the sterile tip into place by means of a steel rod inside the shaft of each soft-tip. The post shape is preferably a polygonal shape, such as a hexagon, triangle, rectangle, or star-shape.
The sponge material, porosity, shape, and other parameters are selected based on treatment objectives, e.g., maintaining eyelid health, treating eyelid conditions and diseases, dermabrasion, polishing, etc.
Sponge materials may be low-density polyether, polyvinyl alcohol (“PVA”, which is highly absorbent), polyester (almost as absorbent as PVA, but more durable and has larger pores), and other polymers. A head can have various surface textures, topologies, porosities, permeabilities, dimensions, inlet (e.g., suction) channels, and outlet (e.g., dispensing) channels. The bristlehead or Soft-Tip can be pre-impregnated with topical pharmacologic or cleansing agents to better facilitate application and efficacy of the agents. Alternatively, topical agents can be applied to the daily disposable soft-tip, bristlebrush, or Soft-Tip before applying the head to an eyelid or can be applied using a reservoir-equipped embodiment of the invention.
Other embodiments of the daily disposable soft-tip include forming the disposable from plant starch and/or gelatin, that retains the favorable characteristics of pliability, softness, and smoothness, yet erodes or “melts” as the disposable comes into contact with either or both the lubricant and/or the patient's tears. As the tip melts, active ingredients disperse evenly throughout the matrix; anti-infectives, anti-inflammatory agents, and analgesics are released in a controlled fashion, thus causing the active ingredient to be released at a desired rate throughout the duration of the nanomites. This provides a programmed release based on duration of mechanical, chemical, or electrical effect which are mixed into the tip matrix (and therefore held in a non-oxygenated state), thus preserving their designed treatment effect for an extended period of time.
Typical anti-inflammatory agents can be added to the tip matrix either individually or in combination and are selected from the group including aspirin, acetylsalicylic acid, salicylic acid, celecoxib (Celebrex), diclofenac (Cambia, Cataflam, Voltaren-XR, Zipsor, Zorvolex), diflunisal (Dolobid—discontinued brand), etodolac (Lodine), ibuprofen (Motrin, Advil), Ketorolac tromethamine, indomethacin (Indocin) and drugs that meet the definition of NSAIDs—nonsteroidal anti-inflammatory drugs. The anti-inflammatory agent has to be mixed by high energy sonification to form a suspension with the selected oil. The oils can be selected from various oils which will mix with the RTV silicone rubber (room-temperature-vulcanizing silicone), which include flax seed oil, silicone oil, cannabidiol (CBD oil), olive oil, peanut oil and other natural oils. Silicone oils are any liquid polymerized siloxane with organic side chains. The silicone is used to mean any soft elastomer, thermoplastic elastomer, silicone, mixture of silicone and thermoplastic elastomer.
First, an anti-inflammatory agent and oil mixture must be created to suspend the anti-inflammatory agent in the oil. The anti-inflammatory agent as shown in
To create an anti-inflammatory agent bristlebrush or Soft-Tip 200 utilizing aspirin, acetylsalicylic acid and oil mixture, one would add the anti-inflammatory agent and oil mixture into the silicon at a concentration of 0.5-8 mg/ml. The following process is used: take the appropriate amount of the acetylsalicylic acid and oil mixture needed to arrive at a 0.5-8 mg/ml mixture of anti-inflammatory agent and silicone (the preferred concentration is 2.5 mg/ml), and add it to the silicone mixing it completely. Then utilize the mixture to mold the bristlebrush or Soft-Tip 200, followed by curing the bristlebrush or Soft-Tip 200 in an oven which is heated to 200 degrees C., and allow the bristlebrush or Soft-Tip 200 to cure for 4 hours or until the bristlebrush or Soft-Tip 200 is firm yet supple.
The addition of acetylsalicylic acid into the matrix result in a bristlebrush or Soft-Tip 200 that has anti-inflammatory properties which will minimize the problems of inflammation which could affect the eye heath of the patient. The bristlebrush or Soft-Tip 200 is utilized by the patient applying the oscillating bristlebrush or Soft-Tip 200 on the distal end of the appliance to the eyelid, to scrub the eyelid and the meibomian glands on the edge of the eyelid.
Anti-infectives describe any medicine that is capable of inhibiting the spread of an infectious organism or by killing the infectious organism outright. This term encompasses antibiotics, antifungals, anthelmintics, antimalarials, antiprotozoals, antituberculosis agents, and antivirals. Typical anti-infective agents can be added to the tip matrix either individually or in combination, and can be selected from the group including:
Curcumin;
Silver;
Copper;
Amebicides;
Aminoglycosides;
Azole antifungals;
Echinocandins;
Polyenes;
Antiviral agents;
Aminoglycosides are a class of antibiotics used mainly in the treatment of aerobic gram-negative bacilli infections, although they are also effective against other bacteria including Staphylococci and Mycobacterium tuberculosis. They are often used in combination with other antibiotics. Typical aminoglycosides agents can be added to the tip matrix either individually or in combination, and can be selected from the group including paromomycin, tobramycin, gentamicin, paromomycin sulfate, amikacin, amikacin liposome, kanamycin, neomycin and plazomicin.
To create an anti-infective bristlebrush or Soft-Tip 200 using an aminoglycosides agent one must create an aminoglycosides agent and oil mixture. The aminoglycosides agent as shown in
To create an anti-infective bristlebrush or Soft-Tip 200 utilizing an aminoglycosides agent such as paromomycin and oil mixture, one would add the paromomycin and oil mixture into the silicone at a concentration of 0.4-9 mg/ml. The following process is used: take the appropriate amount of the paromomycin and oil mixture needed to arrive at a 0.4-9 mg/ml mixture of paromomycin and silicone (the preferred concentration is 3 mg/ml), and add it to the silicone mixing completely. Then utilize the mixture to mold the bristlebrush or Soft-Tip 200, followed by curing the bristlebrush or Soft-Tip 200 in an oven heated to 200 degrees C., and allow the bristlebrush or Soft-Tip 200 to cure for 4 hours or until the bristlebrush or Soft-Tip 200 is firm yet supple.
The addition of paromomycin into the matrix, results in a bristlebrush or Soft-Tip 200 that has anti-infective properties which will minimize the problems of inflammation, which could affect the eye heath of the patient. The bristlebrush or Soft-Tip 200 is utilized by the patient applying the oscillating bristlebrush or Soft-Tip 200 on the distal end of the appliance to the eyelid to scrub the eyelid and the meibomian glands on the edge of the eyelid.
To create an anti-infective bristlebrush or Soft-Tip 200 using a natural product such as curcumin, one must create a curcumin and oil mixture. The curcumin and oil mixture as shown in
To create an anti-infective bristlebrush or Soft-Tip 200 utilizing curcumin and oil mixture, one would add the curcumin and oil mixture into the silicon at a concentration of 0.4-9 mg/ml. The following process is used: take the appropriate amount of the curcumin and oil mixture needed to arrive at a 0.4-9 mg/ml mixture of curcumin and silicone (the preferred concentration is 4 mg/ml), and add it to the silicone mixing completely. Then utilize the mixture to mold the bristlebrush or Soft-Tip 200, followed by curing the bristlebrush or Soft-Tip 200 in an oven which is heated to 200 degrees C., and allow the bristlebrush or Soft-Tip 200 to cure for 4 hours or until the bristlebrush or Soft-Tip 200 is firm yet supple.
The addition of curcumin into the matrix result in a bristlebrush or Soft-Tip 200 that has anti-infective properties which will minimize the problems of infection which could affect the eye heath of the patient. The bristlebrush or Soft-Tip 200 is utilized by the patient applying the oscillating bristlebrush or Soft-Tip 200 on the distal end of the appliance on the eyelid to scrub the eyelid and the meibomian glands on the edge of the eyelid.
Another method of making a head with anti-infective and anti-inflammatory properties the flax seed oil is prepared with tea tree oil in a concentration of 5% -50%. First tea tree oil is placed in a beaker of 200 ml of flax seed oil and ultrasonically mixed until the tea tree oil is mixed into the flax seed oil and the flax seed oil and tea tree oil mixture is then added to silicon and/or thermoplastic elastomer such that the concentration of flax seed oil and tea tree oil to silicon and/or thermoplastic elastomer for the silicon and/or thermoplastic elastomer mixture is 3 mg/ml and flax seed oil and tea tree oil silicon and/or thermoplastic elastomer mixture is molded into a head and cured for 4 hours at 200 degrees C.
A method of making a head with anti-infective and anti-inflammatory properties where in hypochlorous acid 0.01% is placed in a beaker of 200 ml of flax seed oil and ultrasonically mixed until the hypochlorous acid is mixed into the flax seed oil and the flax seed oil and the hypochlorous acid mixture is then added to silicon and/or thermoplastic elastomer such that the concentration of flax seed oil and hypochlorous acid to silicon and/or thermoplastic elastomer for the silicon and/or thermoplastic elastomer mixture is 3 mg/ml and the flax seed oil and hypochlorous acid silicon and/or thermoplastic elastomer mixture is molded into the head and cured for 4 hours at 200 degrees C.
The head used in the invention is preferably sterile and can be easily replaced. The head is sterilized and distributed to users in packaging that maintain sterility. Sterility is desired since a head is used to clean eyelids and in close proximity to the cornea and other exposed parts of the eye, and in other embodiments is used in debridement and wound treatment. A magnetic chuck could be used to grasp and hold the head to the drive mechanism of the instant invention. Another embodiment affixes the steel pin permanently to the chuck of the hand-held device. A head can be easily replaced by pulling it off the head receiver. Periodic replacement of a disposable head is typically daily in a home use setting (i.e., for SA Cleaning), or for each patient in a clinical setting.
Alternative embodiments of the instant invention comprise one or more of the following elements: (i) illumination source(s) with on/off and optionally with light intensity control, (ii) one or more refillable reservoirs, pumps, and outlet channels for solvent, cleanser, medicament, and other liquids, powders, and gases (the gases may be heated, cooled, or room temperature and may be used to create an aerosol from a liquid or powder), (iii) means of metering and application of liquids, powders (and other solids), and gases, (iv) a suction pump that creates suction in or near the head to remove debris, cleanser, and other matter from a surface being cleaned or treated, (v) sensors and optionally processors to assay the distance from head to target area, materials in target area, and/or materials in suction waste stream, (vi) indicators (visual and aural) and displays, (vii) video camera, and data communication channels (wired and/or wireless). The hardware and software used to perform an assay may be located in the handpiece or located remotely and linked with the eyelid care appliance by NFC. A head can also comprise bristles, typically very small diameter bristles, alone or in combination with a sponge. In some head embodiments, the bristles terminate very close to the surface of a head. Refilling a reservoir is performed by connecting a liquid, gas, or powder source to an inlet connector on the housing in communication with the reservoir. Alternatively, a reservoir can be removed from the housing for refilling. An eyelid care appliance can comprise one or more reservoirs, reservoir inlet connectors, pumps, output tubing, and nozzles for dispensing solvent, cleanser, medicament, and other liquids, powders, and gases. Configurations with two reservoirs, associated pumps and tubing can be filled with agents that create heat when combined. When such agents are dispensed and combine on the eyelid surface, the eyelid surface is heated, thereby helping to “melt” blockages of meibomian glands posterior to the anterior surface or an eyelid.
Alternatively, to heat the head an electric current can be routed through the tip, so as to allow the system to heat in tip, by using conductive material/wires in the tips.
A preferred embodiment further comprises one or more reservoirs, reservoir inlet connectors, pumps, output tubing, and nozzles for dispensing liquids selected from the group comprising cleaning agents, Betadine, antiseptics, antimicrobials, anti-inflammatories, anesthetics, saline solution, water, solvents, taggants, stains, pharmaceuticals, nutraceuticals, and monoclonal antibodies. Another preferred embodiment further comprises one or more reservoirs, reservoir inlet connectors, housing inlets, pumps, output tubing, and nozzles for dispensing gases, wherein optionally the gases are heated or cooled by a thermal device in the output tubing can optionally be used to create an aerosol from a liquid or powder sourced from a different reservoir, and can optionally be used to create an aerosol from a liquid or powder each stored in a different reservoir. The gas can be ambient air fed to the pump from an inlet in the housing rather than from a reservoir.
The preferred embodiment is an “integral” eyelid care appliance in which all elements of a given configuration are contained in a single housing. A drive module (defined below) and an eyelid care module (defined below) are the principal elements contained in the housing. A preferred embodiment comprises a power supply, motor, drive system that transmits motive force from the motor to oscillate a head receiver, motor controls, a proximity system, and proximity annunciator contained in a housing, wherein a head is detachably mated with the head receiver and protrudes from the housing and oscillates when the motor is powered on. An alternate “two-piece” embodiment comprises a handpiece and a detachable neck, a power supply, motor, proximity annunciator, and motor control being contained in the handpiece, a head receiver being contained in the detachable neck and connected to the motor through a drive system with portions of the drive system distributed in the detachable neck and in the handpiece, and with a coupler at the interface of the handpiece and detachable neck, which drive system transmits motive force from the motor to oscillate the head receiver, wherein a head is detachably mated with the head receiver, protrudes from the detachable neck, and oscillates when the motor is powered on. In a two-piece embodiment, each of the components recited in items (i) to (vii) above can be distributed in whole or in part, between the handpiece and the detachable neck, depending upon the component and configuration involved. In two-piece embodiments of the invention, the detachable neck comprises an eyelid care module, the neck is detachably mated with a handpiece containing a drive module and the interface between the detachable neck and the handpiece includes a drive system interface (e.g., a mechanical coupling such as a male shaft mating with a female receiver, wherein the shaft and receiver have mating geometries, such as a D-shape, triangle shape, star shape, etc., or a magnetic coupling).
In all embodiments of the invention, a power supply (typically a replaceable and/or rechargeable battery) powers a DC motor, and when the motor is powered on, the motor (and drive translator, if the motor outputs unidirectional rotary motion) causes the oscillation of a driveshaft (or equivalent means of transmitting motive force, e.g., in a two-piece embodiment, an electric motor with magnetic or mechanical coupling to a detachable neck). The oscillating driveshaft causes the head receiver to oscillate, which causes the head mounted in the head receiver to oscillate. The eyelid care appliance is typically battery powered; however, it can be powered by a power supply connected to an electrical outlet.
A “drive module” comprises a power supply, motor, on/off control, drive shaft, and related transmission elements. If the motor outputs unidirectional rotary motion, such unidirectional rotary motion is translated so that the driveshaft causes the head to oscillate. The combination of the motor, driveshaft, and related transmission elements (such as a drive translator) is called a “drive system”. A well-known drive translator has a motor-driven driveshaft with pinion gear driving a geared disc or cam. An eccentric follower link on the geared disc or cam causes a shaft linked to the geared disc or cam to oscillate. The drive system couples the motive force of the motor to the head. An “eyelid care module” comprises at least a head, head receiver, and associated drive system. Integral and two-piece embodiments of the invention can be configured to provide the same functionality. However, functionality of two-piece embodiments may be limited by the functionality of the handpiece. For instance, a detachable neck (containing an eyelid care module) that mates with a generic powered handpiece, e.g. an electric toothbrush handpiece, would have to have additional functionality configured in the detachable neck.
As shown in
In embodiments in which the head angle (the angle between the axis of oscillation of the bristlebrush or Soft-Tip 200 and the longitudinal axis of the housing 1) is non-adjustable, the head angle is fixed between zero and 90 degrees. In embodiments in which the head angle is adjustable (see
An alternative configuration of the head receiver and drive system places an adjustable head receiver at the distal tip of the eyelid care appliance, and the head angle can be adjusted through a range up to 180 degrees (i.e., +90-degree head angle to −90-degree head angle) and fixed at a given head angle through detents and/or locking mechanism. Such expanded range of head angles avoids the need to invert the eyelid care appliance when cleaning the upper eyelid margins, and also keeps the on/off button in the same location within the user's grip. An adjustable head receiver embodiment of the eyelid care appliance facilitates different angulations of treatment and therapy. A preferred adjustable head receiver embodiment has detents in the head receiver at specific angulations, e.g., 45, 90, 135 and 180 degrees of head angle. The head can be locked in place at each detent position. A second preferred adjustable head receiver embodiment can be locked in place, e.g. by a clamping means, at any angulation with the range of head angulation.
As shown in
In a preferred embodiment for SA Cleaning and SP Cleaning, the eyelid care appliance comprises a drive module, drive controls and annunciator, eyelid care module with adjustable head angle, proximity sensor, proximity controls and annunciator, and related data channels. The proximity sensor determines or depicts the distance between the surface of the head and the eyelid margin. The proximity annunciator can be a light or a light array, a display, a generated voice, or tactile. A preferred configuration, as shown in
As shown in
A preferred gel would contain Argan oil, Pomegranate Fruit Extract, Norway Spruce tree sap (Picea Abies Extract), and Jojoba Esters. The gel can be formulated from Aqua, Glycerin, 1,2-Hexanediol, Argania Spinosa (Argan) Kernel Oil, Punica Granatum (Pomegranate) Fruit Extract, Picea Abies Extract, Hydrolyzed Jojoba-Esters, Butylene Glycol, Polysorbate 20, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Hydroxyacetophenone, Sodium Hydroxide.
Argon Oil—Packed full of hydrating essential fatty acids and anti-inflammatory vitamin E and sterols, Argan oil is a nutrient powerhouse.
Pomegranate Fruit Extract—Is known for cell regeneration and helps to protect the epidermis.
Norway Spruce tree sap (Picea Abies Extract)—A pharmaceutical grade ingredient in Finland for various applications. This ingredient is extremely unique and provides anti-inflammatory, antioxidant, wound healing, and anti-bacterial properties.
Jojoba Esters—Derived from the seeds of a desert shrub, this oil is an emollient ester with excellent spreading, lubricating and penetrating properties
However, the head could also be configured as a bristlebrush or Soft-Tip 200 and the recessed tip or hollow cavity 202 as shown in
Another embodiment of the device of the invention, as shown in
Embodiments of the eyelid care appliance with reservoirs are equipped with dispensing controls and associated sensors, valves, and optional data channels that report sensor output and valve status. Controls in the eyelid care appliance are activated by buttons on the housing (or handpiece) and implemented by a processor on a printed circuit board 11 in
As shown in
The sponge mount 5 with affixed sponge 45 or more preferable bristlebrush or Soft-Tip 200 fits firmly (either by friction or by detent) into a head receiver 6 and oscillates in a fixed relationship to the head receiver 6. Light pipe and light ring 19 provide light in the direction of the head post axis from an LED 207 mounted on and controlled by printed circuit board 11. Alternatively, power controlled by printed circuit board 11 can be provided to LEDs near the head receiver 6 or to LEDs on the distal portion of the eyelid care appliance. If a rechargeable battery is used as the power source in the handpiece, a battery charger (e.g., inductive, or conductive terminals) can be incorporated into a stand or holder for the device of the invention; alternatively, the battery can be removed through battery cover 3 for recharging in a charging dock. One or more lighting LEDs can project light in front of the head, thereby providing adequate illumination for the user and/or a video camera.
As shown in
As shown in
As shown in
Furthermore, as noted
The main housing 1 preferably comprises a power button 24, which, in a preferred embodiment, allows the massaging action of the bristlebrush or Soft-Tip 200 to be activated either alone or in combination with heat. The main housing 1 also preferably comprises a light emitting diode (LED) 207. In a preferred embodiment, the LED 207 is a dual LED with both a green LED and a red LED in the same light. The green LED indicates that the batteries are being charged. The red LED indicates that the unit is heating the bristlehead or Soft-Tip. The main housing 1 can also have a selector switch which allows the patient to select cleaning modes comprising of a circular motion, an elliptical path or oscillating motion depending on the selected mode. The system can also be configured as a wired device or with a rechargeable battery and charger.
Alternatively, one could heat in head, by placing some conductive material/wires in the tips and utilize either AC or DC, current to heat the head. The device can also be configured to use electromagnetic induction to transmit electricity to sealed head thereby eliminating the need for conductors.
Alternatively, the invention can also use induction heating to heat the head.
In one embodiment, the motor shaft (not shown) of the motor 7 is connected to a flexible shaft 17, which extends from the top of the motor 7 to inside of the head receiver 6 so that as the motor shaft rotates, the flexible shaft 17 also rotates. In an alternate embodiment (not shown), two non-flexible shafts connected by a first universal joint could be used in lieu of the flexible shaft. In the latter embodiment, the first shaft would be connected to the motor shaft, and the second shaft would be connected to the oscillation assembly inside the head receiver 6. A second universal joint would be located at the point at which the second shaft connects to the oscillation assembly.
The bristlebrush or Soft-Tip 200 is preferably made of a soft elastomer or silicone. In a preferred embodiment, the bristlebrush or Soft-Tip 200 is shaped so as to be comfortable when placed over the eyelid.
In a preferred embodiment, the bristlebrush or Soft-Tip 200 is removable from the Main Housing 1.
The eyelid cleaning action occurs from the bristlebrush or Soft-Tip 200 being placed in communication with the patient's eyelid and the main housing 1 mechanisms causing the bristlebrush or Soft-Tip 200 to rotate in a circular motion or oscillate depending on the selected mode. The bristlebrush or Soft-Tip 200 can oscillate or follow an elliptical path.
It is the combination of the cleaning motion for the eyelid that the device provides, that allows it to provide stimulation for the meibomian glands. Alternatively, the bristlebrush or Soft-Tip 200 can also be heated which would provide additional stimulation to the meibomian glands. However, the heat needs to be limited from 75 to 104 degrees Fahrenheit so as not to harm the eyelid. When utilizing a heated bristlebrush or Soft-Tip 200, the main housing 1 contains a controller for modulating the heat of the bristlebrush or Soft-Tip 200.
Alternatively, the bristlebrush or Soft-Tip 200 or a round polymer head as shown in
The addition of curcumin into the matrix of the bristlebrush or Soft-Tip 200 has antimicrobial properties, which will minimize the problems with transferring bacteria, which could affect the eye heath of the patient. The bristlebrush or Soft-Tip 200 is utilized by the patient applying the oscillating bristlebrush or Soft-Tip 200 on the distal end of the appliance, together with a solvent or cleanser to the eyelid, to scrub the eyelid and the meibomian glands on the edge of the eyelid.
Alternatively, a package which minimizes the handling of the bristlebrush or Soft-Tip 200 by the patient would also minimize the problems of transferring bacteria which could affect the eye heath of the patient. The bristlebrush or Soft-Tip 200 can also be made of an antimicrobial material to further improve the sterile properties of bristlebrush or Soft-Tip 200.
An integral manufacturing and shipping system 500 shown in
Alternatively, the instant invention could also be a smart device by adding a WiFi, NFC, Bluetooth or a ZigBee interface which would collect data and provide it to a cloud database. The smart instant invention would communicate with an application loaded on a smart phone, tablet or computer and upload treatment times and pressures to an integrated cloud 620 application which could be shared with the healthcare provider to monitor treatments. The communication could be a means such as Zigbee, Bluetooth, Bluetooth BLE, ANT+, WiFi or NFC. The data that could be collected would be clinically significant such as treatment time, pressure and date. The collection of pressure data would require the integration of a pressure transducer into head receiver 6. You could also create a chip that comes with each head, which is a read writeable device as shown in
Software applications and sensors used with embodiments of the eyelid care appliance (including embodiments with a system on a chip within the eyelid care appliance or with a smart device linked by a communication method such as Zigbee, Bluetooth, Bluetooth BLE, ANT+, WiFi or NFC to the eyelid care appliance), can detect and report: how often and for how long one has scrubbed an area, battery condition, how much pressure is applied at the head, patency of the meibomian glands, health of the eyelid margin, etc. A video and/or sensor equipped eyelid care appliance can also provide images and/or assay reports of other body surfaces, e.g., skin lesions, wounds. The software applications can run on a computer integral with the eyelid care appliance, on a remote device, or on networked devices, including the eyelid care appliance as a client in a network.
Embodiments of the invention with lighting and a video proximity system can be equipped with band-limited light sources, either by selection of LED emitters and/or by filtering, and with multispectral image analysis software. Such an embodiment further comprises one or more band-limited light sources that project light in front of the head, wherein the proximity system is a video camera with lens mounted near the head and in near field communication with a smart device, wherein the video output from the video camera is fed to multispectral image analysis software in the smart device or in the appliance, and the output of the multispectral image analysis software is displayed on the smart device. Using multispectral image analysis well known in the art and implemented in software applications running on an integral processor or on a smart device with an NFC link to the eyelid care appliance, provides a non-invasive, real-time method of determining the health of an eyelid (or other skin area).
In addition to routine eyelid cleaning, SA Cleaning, and SP Cleaning, the invention may also be used to clean other areas and types of tissue where, or in other applications in which, a surface needs to be thoroughly cleaned, such as:
a. Pre-operative eyelid cleaning for ocular or peri-ocular surgery with cleansing/antimicrobial solutions (including povidone iodine solution).
b. Application of dermatologic creams for acne to be applied directly to the blemish or other skin area. This will allow a more precise placement of the medication so as not to dry out surrounding skin. Also, the oscillating sponge will allow a more even and thorough application of the product. The sponge can be pre-loaded with an appropriate amount of medication. Sensor-equipped embodiment of the invention can provide assay reports of the skin area.
c. Application of eyelash lengthening therapies, e.g., the Latisse® (Allergan Corp.) therapy, currently recommends the use of small applicator brushes to apply the product. This demands very exact eye-hand coordination. Use of the invention, preferably a video-equipped embodiment, would allow easier application with perhaps better coverage of the lashes.
d. Wound cleaning and debridement. Wound cleaning and debridement can be challenging by existing manual techniques. This device can be used to thoroughly and precisely clean wounds and remove foreign material and dead tissue from a wound. Sensor-equipped embodiment of the invention can provide assay reports of the skin area.
e. To apply a pharmaceutical to a lesion. Sensor-equipped embodiment of the invention can provide assay reports of the skin area.
f. Veterinary use for cleaning eyelids or other areas on animals that require a small cleaning device. Sensor-equipped embodiment of the invention can provide assay reports of the skin area.
The eyelid care appliance can be made in various sizes, e.g., pediatric and adult. An eyelid care appliance can be made in various sizes of drive module, e.g., different glove sizes, different pistol grip sizes, and in different sizes of head, e.g., pediatric and adult. Two-piece embodiments of the eyelid care appliance can be made with a standard interface between detachable neck and handpiece so that different sizes of detachable necks can be mated with different sizes of handpieces. Any embodiment of the eyelid care appliance can include an accelerometer that detects that the appliance has been dropped and that causes the motor to be powered off. Any embodiment of the eyelid care appliance can also use NFC to report its location to a smart device.
Alternative embodiments of the invention designed to care for body surfaces other than eyelids are called herein “surface care devices” and, like eyelid care appliances, comprise a drive module and an eyelid care module, and include the alternative embodiments described above (e.g., proximity systems, fluid and fluidized agent dispersal systems, suction systems and communication links to smart devices. The communication could be a means such as Zigbee, Bluetooth, Bluetooth BLE, ANT+, WiFi or NFC. etc.). Heads of various diameters and topologies are tailored to the skin area to be treated, e.g., a large concave head to treat elbows, a small concave head to treat fingertips. Surface care devices also include wound care devices adapted for various types of wounds to be cleaned or otherwise analyzed or treated using a surface care device; one embodiment of a surface care device for wounds is a mechanical debridement device.
A surface care appliance can be used for pre-operative scrubbing of small areas of skin before surgery, in particular for scrubbing of eyelid margins. Pre-operative scrubbing is currently done manually with swabs and sponges.
An alternative embodiment of the invention can be configured by choice of head to clean makeup off eyelids; a sterile head could be mounted for each use. Current methods of using moistened towelettes or cotton balls may not thoroughly clean eyelids of all residual makeup. This device could be used either primarily or as an adjunct to the above described methods to more thoroughly and rapidly remove eye makeup.
To generalize the preceding description, like eyelid care appliances, surface care devices of the invention are of two types: (1) an integral appliance, with an eyelid care module and drive module within a single housing, optionally with a pivoted grip, or (2) a two-piece appliance, comprising a handpiece and detachable head. Embodiments of surface care devices, e.g., for skin care and wound care, are adapted for areas to be cleaned or otherwise analyzed or treated.
The instant invention could be made more ergonomic. To do this, the design could include a head and Soft-Tip that protrudes further out from the handpiece and helps ensure easy contact with the eyelid margins.
The instant invention could also use a consumer replaceable and/or rechargeable battery.
The handpiece design could be designed such that it would be easier for arthritic patients to turn on/off. Such a design could include a larger grip and an improved switch.
The instant invention could also be made Waterproof. The design would have to account for the need to provide serviceability.
The instant invention could also include a redesign of the handpiece so that the shaft and the round plate currently a part of the bristlebrush or Soft-Tip become a permanent/semi-permanent part of the handpiece. This would reduce the cost of the Soft-Tip by making the tip and base plate reusable/semi-permanent.
It would allow the manufacturer to offer the bristlebrush or Soft-Tip in different lengths so as to provide a length most comfortable to the patient (and avoid a fixed redesign of the handpiece), allow press-on attachment of the bristlebrush or Soft-Tip to the handpiece and thus much easier for elderly patients to attach; reduce the size and weight of the packaging—hence reduce freight costs.
By attaching the plate to the shaft, it would allow for a Soft-Tip to be attached to the plate which is part of the handpiece.
Further modifications will also suggest themselves to those skilled in this art, and such are considered to fall within the spirit and scope of the invention as defined in the appended claims.
Although the preferred embodiment of the present invention has been shown and described, it will be apparent to those skilled in the art that many changes and modifications may be made without departing from the invention in its broader aspects. The appended claims are therefore intended to cover all such changes and modifications, as they fall within the true spirit and scope of the invention.
While various aspects and features of certain embodiments have been summarized above, the following detailed description illustrates a few exemplary embodiments in further detail to enable one skilled in the art to practice such embodiments. The described examples are provided for illustrative purposes and are not intended to limit the scope of the invention.
In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the described embodiments. It will be apparent to one skilled in the art, however, that other embodiments of the present invention may be practiced without some of these specific details. Several embodiments are described herein, and while various features are ascribed to different embodiments, it should be appreciated that the features described with respect to one embodiment may be incorporated with other embodiments as well. By the same token, however, no single feature or features of any described embodiment should be considered essential to every embodiment of the invention, as other embodiments of the invention may omit such features.
While certain features and aspects have been described with respect to exemplary embodiments, one skilled in the art will recognize that numerous modifications are possible. Further, while various methods and processes described herein may be described with respect to particular structural and/or functional components for ease of description, methods provided by various embodiments are not limited to any particular structural and/or functional architecture.
Hence, while various embodiments are described with or without certain features for ease of description and to illustrate exemplary aspects of those embodiments, the various components and/or features described herein with respect to a particular embodiment can be substituted, added, and/or subtracted from among other described embodiments, unless the context dictates otherwise. Consequently, although several exemplary embodiments are described above, it will be appreciated that the invention is intended to cover all modifications and equivalents within the scope of the following claims.
While this invention has been described with respect to at least one embodiment, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains, and which fall within the limits of the appended claims.
This application claims priority from U.S. Provisional Patent Application No. 62/835,868, filed Apr. 18, 2019 entitled Device and method for stimulating the meibomian glands of the eyelid; this application claims priority from U.S. patent application Ser. No. 16/402,143, filed May 2, 2019, entitled Eyelid Care Appliance; this application claims priority from U.S. patent application Ser. No. 16/431,631, filed Jun. 4, 2019, entitled Eyelid Care Appliance, all of which are hereby incorporated by reference herein for all purposes.
| Number | Date | Country | |
|---|---|---|---|
| 62835868 | Apr 2019 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 16402143 | May 2019 | US |
| Child | 16852829 | US | |
| Parent | 16431631 | Jun 2019 | US |
| Child | 16402143 | US |
