The present invention relates generally to a method and apparatus for treating an ocular disorder, and more particularly, to treating eyelid margin disease.
Ocular disorders such as those relating to eyelid margin disease are particularly common pathological conditions of the ocular adenexa. By way of example, these disorders include blepharitis, meibomitis, and dry eye syndrome. Despite advances in ophthamology and medical treatments in general, the recommended treatments for these exemplary common ocular disorders has remained essentially unchanged for decades.
Historically, treatment of eyelid margin disease begins and ends with the patient. The patient first begins to notice symptoms including eyelid redness, flaking of skin on the eyelids, crusting and/or cysts at the eyelid margins, and a gritty sensation of the eye culminating in irritation, burning, and reduced vision. Should these symptoms remain unchanged or worsen, the patient routinely seeks the advice of an eye specialist, such as an ophthalmologist. After carefully considering the patients' medical history and investigating various possible causes, the specialist may prescribe a hygienic home treatment procedure for the patient to perform regularly in conjunction with antibiotics and/or topical steroids until the disease subsides.
The goal of the hygienic home treatment procedure is to remove debris, oil, and scurf that have collected along the eyelid margin during progression of the disorder. Removal of this debris is critical to both healing the eye and preventing a resurgence of the disorder. Without proper, regular removal of accumulated debris, such ocular disorders regularly worsen despite periodic treatments.
Hygienic home treatment of such ocular disorders is generally a two-step process. First, the patient softens the debris and scurf by applying a warm compress, diluted baby shampoo, or a specialized liquid solution to the eyelid margin. This first step is intended to prepare the debris for removal while preventing further irritation to the eye. Second, the patient attempts to remove the debris by physically scrubbing the eyelid margin, the base of the eyelashes, and the pores of the meibomian glands. This scrubbing is routinely attempted with either a generic cotton swab, a fingertip, or a scrub pad placed over the fingertip and applied against the eye. By cleaning debris and scurf free from the base of the eyelashes and unclogging the pores of the meibomian glands, the patient may improve the overall health of the eyelid margin; thereby reducing irritation, burning, and other symptoms related to the disorder.
Unfortunately for many patients, such hygienic home treatment is met with limited success due to the practical difficulties of cleaning one's own eye with an imprecise instrument such as a fingertip or cotton swab. For instance, many patients do not have the necessary dexterity to manipulate their fingertip or a cotton swab along the eyelid margin. Moreover, a shake, tremor, or poor near vision further complicate such self-treatment. Even for those capable of incorporating hygienic home treatment into their daily routine, many, if not most people, are wary of placing objects near their eyes to actively scrub along the eyelid margin. Given this anxiety, discomfort, and the inability to specifically target debris deposits, patients routinely fail to totally cleanse the margin of the eyelid, the base of the eyelashes, and the meibomian glands. While the attempted treatment may temporarily abate the patient's symptoms, subtle continuation of the disease often persists; thus permitting a low-grade inflammation to develop and, ultimately lead to chronic dry eye syndrome. Further, this treatment is typically required to be performed for the rest of the patient's life; thereby, creating a substantial hurdle to regular and effective compliance during hygienic home treatment.
Evidence suggests that medical costs associated with dry eye syndrome, often induced by ocular diseases such as blepharitis, are currently over 68 billion dollars each year. Many of these expenses are needlessly incurred due to the patients' failure to perform regular and effective treatments resulting in increased doctor visits, medications, and artificial tears. These expenses create a significant financial burden for insurance carriers, especially Medicare, which provides primary medical coverage for many individuals particularly prone to dry eye disease, such as the elderly.
There is a need for a method and apparatus for use in treating ocular disorders, such eyelid margin diseases, that addresses present challenges and characteristics such as those discussed above.
One exemplary embodiment of an instrument for the removal of debris from an eye during the treatment of an ocular disorder has a swab and a rigid member. The swab includes a tip portion sized to provide access to the debris on an eyelid of the eye. The rigid member has a distal end portion and a proximal end portion. The distal end portion of the rigid member is affixed to the swab, and the proximal end portion has a cross-sectional member profile. The cross-sectional member profile of the proximal end portion is non-circular and has a first groove. The first groove extends longitudinally along the proximal end portion for cooperating with a chuck such that rotation of the proximal end portion within the chuck is inhibited.
One exemplary embodiment of a device for the removal of a debris from an eye during the treatment of an ocular disorder has a mechanical drive unit, a chuck, and an instrument. The chuck is connected to and is rotatably driven by the mechanical drive unit. The chuck also has an aperture extending at least partially therethrough with a cross-sectional aperture profile. The instrument is removably secured within the aperture and has a swab and a rigid member. The swab includes a tip portion sized to provide access to the debris on an eyelid of the eye. The rigid member has a distal end portion and a proximal end portion. The distal end portion of the rigid member is affixed to the swab, and the proximal end portion has a cross-sectional member profile configured to cooperate with the cross-sectional aperture profile of the aperture such that rotation of the proximal end portion within the aperture is inhibited. Accordingly, the mechanical drive unit rotatably drives the instrument via the chuck for removing debris.
Various additional objectives, advantages, and features of the invention will be appreciated from a review of the following detailed description of the illustrative embodiments taken in conjunction with the accompanying drawings.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with a general description of the invention given above, and the detailed description given below serve to explain the invention.
With reference to
In one aspect of the instrument 22, the swab 14 includes a tip portion 24 and a base portion 26. While the swab 14 may be of a size sufficient to access debris on the eye 15 as shown in
In another aspect of the instrument 22, the rigid member 16 is a plastic, cylindrical shaft including a central axis 27. The shaft extends along the central axis 27 between the mechanical drive unit 12 and the swab 14. The rigid member 16 is sufficiently rigid to effectively transmit motion from the mechanical drive unit 12 to the swab 14. As shown in
Furthermore, the mechanical drive unit 12 includes a body 28, an electric motor 30, a chuck 32, and a control switch 34. As such, the device 10 is electromechanical in nature. In an exemplary embodiment, the electric motor 30, the chuck 32, and the control switch 34 are integrated into the body 28 so that the electromechanical device 10 is configured to be handheld as shown in
According to the present embodiment, the electric motor 30 is positioned within the body 28. The chuck 32 is operably connected to the electric motor 30 at a forward end portion 36 of the body 28. The proximal end portion 20 of the rigid member 16 is removably secured to the chuck 32. As described herein, the chuck 32 is generally any element capable of removably securing the rigid member 16 to the mechanical drive unit 12. As such, the chuck 32 may be tightened or loosened to respectively secure or remove the instrument 22 to the chuck 32. Thereby, the operable connection of the electric motor 30 transmits a movement 38 through the chuck 32 to the instrument 22. The movement 38 is any motion relative to the mechanical drive unit 12 or, more particularly, to the body 28, that creates relative motion to the debris on the eye 15 such that upon contacting the debris with the swab 14, the debris is removed. As shown, the movement 38 may include, but is not limited to, a reciprocating movement 38a, a rotating movement 38b, or a vibrating movement 38c. The reciprocating movement 38a may be either along the central axis 27 of the rigid member 16 or orthogonal to the central axis 27 of the rigid member 16. In addition, the speed of the movement 38 of the swab 14 is any speed sufficient to remove debris from on the eye 15. It will be appreciated that the speed discussed herein collectively refers to both relative speed of the swab 14 and the frequency of the movement 38 of the swab 14. For instance, the frequency may range from sonic frequencies to ultrasonic frequencies. Furthermore, the speed of the swab 14 may be variable or otherwise selectable such that an operator of the device 10 may select a desirable speed or a forward or reverse direction via the control switch 34.
Moreover, the control switch 34 is operably connected to the electric motor 30 and an electric power source 42 to power the device 10 on and off. In an exemplary embodiment, the electric power source 42 is a battery power source 42 contained within the body 28. The battery power source 42 may be either disposable or rechargeable. The electric power source 42 operably provides electrical power to the electric motor 30, which the operator controls via the control switch 34. It will be appreciated that any known control switch 34 or plurality of control switches 34 may be configured to power the device 10 on and off.
Furthermore, it will be appreciated that the device 10 may be manufactured from various materials suited to specific environments of use. For instance, operators within the professional clinic setting may desire a durable, reusable mechanical drive unit 12 and single-use instruments 22. Some examples of such a professional mechanical drive unit 12 is an Algerbrush
I, an Algerbrush II, or similar medical device. However, operators within the home treatment setting may desire the device 10 to be generally disposable and single-use.
With respect to
With respect to
More particularly, the proximal end portion 120 has a pair of generally parallel cylindrical portions 191 connected by a generally linear tab portion 192 therebetween. As such, the proximal end portion 120 defines the cross-sectional member profile 180 as a pair of curved, opposing major arc surfaces 194 connected by a pair of opposing linear surfaces 196. Accordingly, the generally cylindrical portions 191 at least partially define a groove 198 extending longitudinally along the proximal end portion 120. According to an exemplary embodiment, the linear tab portion 192 and generally cylindrical portions 120 define a pair of opposing grooves 198 extending longitudinally along the proximal end portion 120.
In order to receive the proximal end portion 120 of the instrument 122, the sidewall 184 defines at least a portion of the aperture 182 with the cross-sectional aperture profile 190. As such, the cross-sectional aperture profile 190 has similar, mating surfaces to the cross-sectional member profile 180. The aperture 182 has a pair of generally parallel cylindrical hole portions 200 connected by a generally linear slot portion 202 therebetween. The proximal end portion 120 thus defines the cross-sectional aperture profile 190 as a pair of curved, opposing major arc surfaces 204 connected by a pair of opposing linear surfaces 206. Accordingly, the generally cylindrical hole portions 200 and linear slot portion 202 define a pair of opposing projections 208 extending longitudinally along the sidewalls 184 within the aperture 182.
As the chuck 132 is operatively rotated, the sidewall 184 transmits torque to the proximal end portion 120 and, in turn, rotates the instrument 122. Effectively, each projection 208 is keyed to the respective groove 198 for transmitting the torque. Furthermore, the exemplary embodiment of the cross-sectional aperture profile 190 inhibits insertion of unsuitable instruments while continuing to effectively engage the proximal end portion 120 with many stress-reducing curved surfaces. However, it will be appreciated that the exemplary embodiment of the aperture 182 and the proximal end portion 120 may be other cooperating shapes providing for removable attachment. To the extent other profiles may function similarly to the embodiment described above, it will be appreciated that the exemplary embodiment of the instrument 122 shown in
With respect to
As shown in
In an exemplary embodiment, the operator preferably targets the debris present on the eye 15 with the swab 14 of the electromechanical device 10. The debris may be targeted by visually inspecting the eye 15 with or without the aid of a magnification device. Once the debris is targeted, the swab 14 contacts the portion of the eye 15 that includes the debris. For purposes of treating the ocular disorder, the debris may be removably attached on either the upper and lower eyelid margins 60, 62 or the plurality of eyelashes 64. Thereby, upon contacting the portion of the eye 15 with the debris, the swab 14 impacts the debris to remove the debris from the eye 15. Furthermore, a liquid solution configured to loosen the debris may be absorbed within the swab 14 to further aid in removing the debris from the eye 15 and/or minimizing irritation to the eye 15. It will be appreciated that any liquid solution sufficiently capable of loosening the debris to further aid in removing the debris may be so used.
The electromechanical device 10 operably drives the swab 14 to break the debris free from either of the upper or lower eyelid margins 60, 62. Further treatment may be performed to enhance the effects of the debris removal by helping to improve healing and reducing further infection of the eye 15. Such treatment may include scrubbing, exfoliating, or buffing the eyelid margin or un-roofing a meibomian gland 66 with the swab 14.
In another aspect, the cornea 58 of the eye 15 is directed away from the position of the swab 14 to minimize contacting the swab 14 to the cornea 58 during treatment. As shown in
As shown in
Furthermore, the method of treating the ocular disorder may be repeated as directed by a physician or patient in order to sufficiently remedy the disorder. For instance, in the case of physician directed treatment, the physician may direct the patient to visit the physician in periodic intervals for treating the ocular disorder with the electromechanical device 10. More specifically, the physician directs the patient to visit the physician in periodic monthly or weekly intervals so that the physician may treat the patient. In the exemplary embodiment, periodic intervals are treatments with the electromechanical device 10 once every month. It will be appreciated that any periodic interval of repeating the method of treating the ocular disorder with the electromechanical device 10 may be so used.
Alternatively, in the case of home treatment by the patient, the patient may treat his or her own ocular disorder with the electromechanical device 10 in periodic intervals. However, according to the exemplary embodiment, the physician repeats the method of treating the ocular disorder in periodic intervals with the electromechanical device 10 and the patient also treats the ocular disorder in between physician treatments using traditional treatments. This method of treating the ocular disorder with the electromechanical device 10 in treatments occurring in periodic intervals achieves superior removal of the debris compared to traditional treatments, because the periodic intervals act as reminders to the patient. Thus, the patient is less likely to forget to treat the ocular disorders once symptoms begin to subside, which may result in a resurgence of the disorder. However, the traditional treatments, despite being less effective, may be performed regularly by the patient to further treat the ocular disorder in conjunction with physician treatments with the electromechanical device 10.
In any case, the physician or patient treats the ocular disorder until the ocular disorder is sufficiently healed and thereafter to prevent a recurrence of the disorder. It will be appreciated that sufficiently healed refers to the dissipation of inflammation and/or discomfort related to the debris within the eye 15 at which time the treatments by the physician may decrease in frequency, but may continue in periodic intervals during home treatment by the patient. After each treatment, the physician or patient may remove the used instrument 22 from the chuck 32 and dispose of the used instrument 22. The used instrument 22 may then be replaced with a new instrument 22 for future treatments. In the event that the inflammation, discomfort, or debris worsens, the method of treating the ocular disorder may resume as the physician or patient desires. However, the treatment may be required in periodic intervals throughout the remainder of the patient's life.
While the present invention has been illustrated by the description of one or more embodiments thereof, and while the embodiments have been described in considerable detail, they are not intended to restrict or in any way limit the scope of the appended claims to such detail. Additional advantages and modifications will readily appear to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus and method and illustrative examples shown and described. Accordingly, departures may be from such details without departing from the scope or spirit of the general inventive concept.
This application is a continuation of U.S. application Ser. No. 13/949,365, filed Jul. 24, 2013, which is a continuation-in-part of U.S. application Ser. No. 13/556,729, filed Jul. 24, 2012, now U.S. Pat. No. 9,039,718, issued May 26, 2015, the disclosures of each are hereby incorporated by reference in their entirety.
Number | Date | Country | |
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Parent | 13949365 | Jul 2013 | US |
Child | 16352758 | US |
Number | Date | Country | |
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Parent | 13556729 | Jul 2012 | US |
Child | 13949365 | US |