The field of technology is an improved assistive device to enable individuals with limited mobility to step up to an examination table in a physician's office during physical examinations.
There is a need for an assistive device that enables an individual with limited mobility to step up to an examination table in a physician's office during a physical examination. As a physician, the Applicant has observed the difficulties that elderly and patients with limited mobility experience during attempts to transfer them to a medical examination table during visits. The Applicant has observed the need for a product that facilitates the transfer of these patients by the physicians or medical staff more conveniently and expediently to the table for medical examination.
Such a device needs to be a stepping device with handles for support and short, wide steps which allow patients to climb up to the examination table with ease and turn around to sit on the table without an increased risk of falling. The design of older examination tables currently in use does not address this problem and the newer examination tables being manufactured are very expensive costing 5-10 times the price of the older tables now in use. Therefore there is a need for a cost effective solution to the current problem that is expected to increase in magnitude over time since the population is aging.
The primary need for such a device is in a physician's office with a large geriatric patient population such as internists, geriatricians, rheumatologists and orthopedic surgeons who see a large population of the infirm and younger patients with difficult mobility. Ultimately all physicians and medical practitioners will need such a device since there are aging patients in most of the medical specialties. The secondary need for such a device is in the general population of the elderly, and those with limited mobility who will benefit day to day use of the product at home. These needs would be met by a standalone device that satisfies the needs of the patients and the physicians. A tertiary need for the device is one that it is incorporated within an examination table made by manufacturers of examination tables, where there exists a need for such a device in the design of future medical examination tables.
In addition, such a device would satisfy the need for: Increased patient satisfaction and improvement in overall patient experience; Increased efficiency of office staff, with less time spent transferring patients to examination tables therefore improving office work flow; and Decreased time spent by physicians in patient transfers on and off the examination table allowing more time to be spent during the visit in discussions with the patient.
The most commonly used examination table known to the Applicant that provides a step function to an examination table surface is described in U.S. Pat. No. 6,550,084 ('084) by Siepman et al. and assigned to The Brewer Company entitled “Medical Examination Table Step” and is sold by Brewer as its Brewer Basic Exam Table.
Another commonly used examination table with a drawer type step is described in U.S. Pat. No. 7,386,899 ('899) by Smith and assigned to the Midmark Corporation. The '899 device is sold by Midmark as its Midmark 604 and Ritter 204 examination tables.
Many conventional medical examination tables have a step that is movable from a stored position to a position for use by the patient as an aid to mount the examination table. Typically, such steps incorporate a hinge mechanism, whereby the step rotates from a stored position to a position for mounting, or a cantilevered track configuration whereby the step extends into a useful position in a drawer-like manner.
Retractable steps are desirable on medical examination tables because they provide an aid to the patient when mounting the examination table. Further, the step can be stored in the table when not in use, thus permitting better access to the patient, and removing obstacles from what are typically cramped examination rooms.
By means of example, Kales (U.S. Pat. No. 487,625) ('625) describes a cantilevered sliding step with hinged support braces and a pull-out handle. In another example, Daggett (U.S. Pat. No. 488,649) ('649) describes a retractable cantilevered step. Lentz's U.S. Pat. No. 542,060 ('060) describes a hinged step coupled to a leg rest of the examination table.
When the leg rest is in a vertical position, the step can be placed in a horizontal position, enabling the patient to mount the examination table. When the leg rests are placed in a horizontal position, the step can be rotated to lie in line with the leg rest by means of the hinge mechanism.
In another example, Grant's U.S. Pat. No. 3,016,275 describes a cantilevered pullout step that is guided by tracks. The step is retracted by pulling on a lower edge of a front side of the step. A step is again described by Douglass' U.S. Pat. No. 3,334,951 ('951). Douglass uses a cantilevered step that is slideably mounted on guide tracks by means of a guide rail. An upper face of the step has a tread to ensure adequate traction. Kharchik's U.S. Pat. No. 6,209,463 ('463) describes a cantilevered retractable footstool including a runner with a locking mechanism that selectively limits the extension of the step in relation to the table.
One disadvantage common to the much of the prior art is the use of a cantilevered step. The use of such a design may compromise patient safety. An overly large step tends to act as a lever and the typical patient would then topple the examination table when using the step. To avoid this, some of the prior art uses a rather narrow cantilevered step. This creates another disadvantage, as the step then is too small for patients to safely mount the examination table. While preventing the table from toppling, such small steps may cause the patient to fall!
In an attempt to alleviate such misfortune, the aforementioned Kales ('625) device incorporates support legs that hinge from the cantilevered step. However, the mechanism that automatically deploys the hinged braces is cumbersome and unreliable. Consisting of narrow members and a strap guided by a groove, the Kales mechanism is relatively delicate, susceptible to jamming or breaking and the braces may be inadvertently dislodged by the patient or care provider during use, resulting in a dangerous situation.
Another disadvantage of much of the prior art is the use of guide tracks and guide rails to retract and extend the step by sliding. This arrangement is susceptible to jamming and sticking, as a relatively large frictional surface on the guide rail and guide track are continually in contact. Such designs are largely not self-aligning, which further exacerbates the problem of jamming and sticking. Another disadvantage of much of the prior art is a lack of means for preventing over extension or excessive retraction of the step. A major disadvantage of much of the prior art is that the steps have a small elevated supporting surface, making it difficult for patients to maneuver and turn on the step while trying to mount the table.
Accordingly, the retractable step of the Siepman/Brewer ('084) device that is self-supporting, thereby eliminating the dangerous toppling condition is a step forward. The Siepman/Brewer '084 device has a relatively large step in order to improve the ease of use and patient maneuverability when used. The retractable step of the Siepman/Brewer '084 slides easily from the stored position to the extended position and returns as easily, without sticking or jamming avoids over extension or excess retraction by a self-assuring means.
However, Siepman-Brewer '084 device does not satisfy the need for an appropriate stepping device that meets the needs of individuals who are elderly or have limited mobility and safely provides support, in the applicant's experience with such individuals.
There are two principal embodiments of the invention described that satisfy the needs cited in the Background of the Invention. The first embodiment is a portable device that is used in conjunction with an existing medical examination table. Another embodiment is a device attached to a Siepman-Brewer ('084) device, a Smith-Midmark ('899) device, or a similar examination table with a pull out step system.
The stand-alone device is similar to a walker or rollator in appearance, but serves a uniquely different function. A rollator or walker assists a patient with walking therapy or assists the patient overcome stability and or energy functions while walking. The first embodiment enables an individual with limited mobility to step up to and easily get access to an examination table in a physician's office during a physical examination or a hospital bed in a hospital or home.
A first embodiment relates generally to an ambulatory support having one or more rigid steps to allow the user to step up safely and easily to an examination table or other horizontal or mostly horizontal support devices. Further, the side frame members of the device can be folded inwardly in order to conserve storage space.
This first embodiment is more fully described as an assistive device for enabling individuals with limited mobility to step up to a generally horizontal patient support apparatus having: a pair of foldable frames each having a generally U-shaped vertical side frame. Each of the frames has a plurality of horizontal support members; the frames are coupled to one or more horizontal support members that are located at a rear of the device; and a plurality of vertically foldable steps coupled to the frames.
A method of using the device is described as: A method of a patient/user using the device described above including the acts of: unfolding a folded device (if folded); placing the device with a rear portion facing and against an examination table or bed; gripping a pair of grips and placing a first foot on a lower step; placing a second foot on an upper step with the first foot remaining on the lower step maintaining his/her hands on the grips; placing the second foot on the second step, thus having both feet on the upper step and in a standing position while gripping the grips; turning around on the upper step to face away from the examination table or bed while still gripping the grips; and moving to a sitting position on the examination table.
These and other features, aspects, and advantages of the present embodiment(s) of the invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
There are two principal embodiments of the invention are described that satisfy the needs cited in the Background section. A first embodiment is a portable device that is used in conjunction with an existing medical examination table. The second embodiment is a device attached to a Siepman-Brewer ('084) device, a Smith-Midmark ('899) device, or a similar examination table with a pull out step system.
The stand-alone device is similar to a walker or rollator in appearance, but serves a uniquely different function. A rollator or walker assists a patient with walking therapy or assists the patient to overcome stability and or energy functions while walking. The first embodiment enables an individual with limited mobility to step up to and easily get access to an examination table in a physician's office during a physical examination; in a hospital bed in a hospital or at home; or another horizontal support device.
The first embodiment relates generally to an ambulatory support having one or more rigid steps to allow the user to step up to an examination table or other horizontal or mostly horizontal support devices. Further, the side frame members of the device can be folded inwardly in order to conserve storage space. The second embodiment is the combination of an assistive device and the ability to store the assistive device into the examination table when the assistive device is not needed.
The first embodiment of the assistive device is a stepping device 10 illustrated in a first (left) side view in
The assistive device called Easy Step is comprised of opposing side frames 12 (left side) and 14 (right side) linked to one or more steps 16 and 18; and a plurality of support members 20, 22, 24, 26, and 28 and 35.
The assistive device of the present embodiment has a pair of foldable frames having generally U-shaped vertical side frames 12 (left side), 14 (right side) which are typically of a hollow tubular steel, aluminum or composite material construction. The side frames 12 (left side), 14 (right side) each include a rear leg 32 (left side) and 34 (right side) and a front leg 36 (left side), 38 (right side). These front and rear legs and the legs of the steps are each supported at the bottom by a friction device such as a rubber, plastic, cloth or felt cup 30. At the top of these vertical frames 12 (left side) and 14 (right side) each has an integral transverse horizontal support member 40 (left side) and 42 (right side) and are positioned to carry a hand grip 44 (left side) and 45 (right side) which the user may use to assist him or her in using the device. At approximately ⅔ of the height of these vertical frames 12 (left side) and 14 (right side) they have a second transverse horizontal support member 22 (left side) and 26 (right side). An additional integral transverse horizontal support member 20 (left side) and 24 (right side) is positioned near the bottom of each vertical side frame. There is a first cross support member 28 in a rear lower portion between the left frame 12 and the right frame 14. There is an option to add a second cross support member 35 higher in the device to provide further structural support. The rear of an upper step of a pair of vertically foldable steps 16 (lower step) and 18 (upper step) is coupled at its rear portion to the rear legs 32 (left side) and 34 right side) by a first pair of step folding mechanisms 46 (left side) and 48 (right side). The front of an upper step 50 is coupled to a first pair of step folding and locking mechanisms 52 (left side) and 54 (right side) provide a location for the foldable steps 16 and 18 to reside in their folded position. The front of the upper step 18 is coupled to a pair of upper step front legs 56 (left side) and 58 (right side) via the second pair of step folding and locking mechanisms 52 (left side) 54 (right side) that lock in the 90 degree position as illustrated in
The rear of a lower step 16 is coupled to the upper step front legs 56 (left side) and 58 (right side) via a second pair of step folding and locking mechanisms 60 (left side) 62 (right side). These second step folding mechanisms provide support for the rear of the lower step as well as support for the front of the upper step. The front of the lower step 16 is coupled to the lower step front legs 64 (left side) and 66 (right side) via a third pair of folding and locking 74 mechanisms 68 (left side) and 70 (right side). The upper and lower steps have a friction surface 72 (upper step) and 74 (lower step) to provide stability for the user. This may be made of rubber or a form of rubberized plastic.
Each rear leg each frame folding mechanism locks and holds one of the two U-shaped foldable frames into an approximately 90 degree position relative to the horizontal cross support when the assistive device is in said unfolded state. Each rear leg each frame folding mechanism unlocks and allows U of the two U-shaped foldable frames into an approximately folded parallel position relative to the horizontal cross support the said assistive is in a folded state.
In a preferred embodiment, the total height of the Easy Step assistive device is approximately 42 inches in height, 22 inches wide and 20 inches deep. The lower step 16 is approximately 5 inches from the floor with the upper step 18 being approximately 10 inches from the floor. The lower step 16 is approximately 18 inches wide and 10 inches deep. The upper step is approximately 20 inches wide and 15 deep. The depth of the upper step is designed to give the patient user space to turn around after stepping up to the upper step before placing himself or herself on the examination table. The horizontal support mechanisms containing the grips are approximately 42 inches from the ground, and 6 inches above the examination table or other horizontal patient support device. The total weight of the device is approximately 10 pounds and will support a patient/user weighing up to 400 pounds. As can be observed from
Upon conclusion of his/her medical examination, the patient/user 88 reverses the progression to step down the device. In this case however, the patient may or may not turn around on the upper step as he/she may be more comfortable going down the step with his/her body facing away from the device 10 and examination table 86.
Prior to the progression described above, a caretaker or patient/user may unfold a folded device 10 and place the unfolded device in front of the examination table as illustrated in
A second embodiment may include the addition of a wheel and brake system on the device so that it may be moved from one location to another without having to carry the device. More complicated embodiments are possible including those with wheels and/or an adjustable height for the user. If wheels are used, it may be necessary to have brakes to prevent the device from moving while in use. The wheel and brake system described in U.S. Pat. No. 7,040,637 ('637) describing a rollator is an example of such a wheel and brake system. The '637 patent is incorporated herein by reference.
A third embodiment of the invention is an assistive device discussed in the first embodiments attached to or stored within a Siepman-Brewer ('084) device, a Smith-Midmark ('899) device, or a similar examination table with a pull out step system.
As was shown in
All the features disclosed in this specification (including any accompanying claims, abstract, and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless stated otherwise, each feature disclosed is one example only of generic series of equivalent or similar features. Additionally, all the US Patents referenced above are hereby incorporated herein by reference.
This application is a Continuation-in-Part application of U.S. Non-Provisional application Ser. No. 13/089,670 ('670) filed on Apr. 19, 2011 and is hereby incorporated in full herein by reference. This application is also related to provisional application Ser. No. 61/382,961 filed on Sep. 15, 2010 entitled Easy Step Examination Table Device” and is hereby incorporated in full herein by reference.
Number | Date | Country | |
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Parent | 13089670 | Apr 2011 | US |
Child | 14805676 | US |