Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Combined and convertible
Reexamination Certificate
2000-08-30
2002-06-04
Canfield, Robert (Department: 3635)
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Combined and convertible
C135S068000, C297S129000, C297S005000, C280S812000
Reexamination Certificate
active
06397868
ABSTRACT:
BACKGROUND OF INVENTION
1. Field of Invention
The present invention relates to portable medical devices for ambulatory patients. More particularly, the present invention relates to accessories for aiding individuals who require the use of crutches.
2. Description of the Related Art
An individual who suffers a leg, foot, or ankle fracture or sprain may require the use of crutches in order to remain mobile. Others may require long term or permanent use of crutches. In the treatment of a lower body injury or permanent disability where a conventional pair of crutches are required to provide support, a level of fatigue is incurred when the upper body must compensate for the lower body's inability to support weight. When using a pair of crutches many people complain of underarm soreness and upper body fatigue. The fatigue is caused by the constant use of the arms with the aid of the crutches to support weight.
To attempt to relieve arm fatigue, it is common for people on crutches to lean on the underarm supports, when not walling or moving about. Soreness under the arms often accompanies the use of crutches. Foam pads have been added to many crutches to help reduce this soreness which is often accompanied by a rash or rawness. Many people add towels etc. to give extra padding.
Others who may require the uses of crutches to remove weight from the affected area in the legs or hips include individuals suffering from arthritis, partial paralysis, accident victims, athletes etc. Sports injuries are common among athletes ranging from professional to amateur, to weekend participants. Knee and ankle injuries are the most common. Depending on the severity of the injury, the injured person may require the use of crutches from a few days to a few weeks or months. Auto accident victims etc. may be on crutches for years and possibly for the rest of their lives. Use for extended periods of time or the need to travel extended distances that lead to fatigue sometimes cannot be avoided. Athletes who need to stand on sidelines, people who are required to be on their feet at work, people who have a long walk in a parking lot or need to walk long distances for any reason all experience fatigue. Sometimes places to sit down are just not available. When there are places to sit there is the problem of where to put the crutches when they are not in use. Also it can be difficult to get up from a seat which is too low, when his/her injury and/or crutches hinder the individual.
In summary, problems associated with the use of standard crutches on their own are sometimes unavoidable. Problems include physical fatigue, discomfort and inconvenience these can force the user to use the injured part more than necessary. These issues pose a threat to the safety of the individual as well as making the crutches less effective and can increase the time necessary for recovery.
The present invention can reduce the adverse effects of the use of crutches. The healing process can be aided and the comfort of the user increased. The individual could possibly enjoy the same degree of mobility as that experienced before the injury including the possibility of returning to work.
SUMMARY OF INVENTION
The present invention is a seat that attaches to a conventional pair of crutches. Its purpose is to support the users weight to help eliminate fatigue which usually accompanies the use of crutches. The device is used when the individual using the crutches is stationary and acts as a seat so that the individual does not have to stand. This device is portable and can be removed for storage or left attached to a pair of crutches for easy access and immediate use.
The present invention is a helpful tool that helps with the above problems of fatigue and mobility. The present invention provides a support during rest by providing a suspended sling seat surface to sit on whenever and wherever the user may be. This will help prevent fatigue and soreness that usually accompany crutch use. By reducing the fatigue in the upper body and providing support to keep weight off the injured limbs, recovery time can be improved and the chance of re-injury can be reduced.
The present invention offers a solution to these problems by providing a surface to rest at all times and anywhere it is safe to use crutches. The suspended sling seat is attached to the arm support of the crutches and hangs behind the user. The present invention remains out of the way during non-use and is always there when then user needs a rest. The seat portion hangs down between the hand supports and with a little repositioning of the crutches provides a seat to lean back into. This takes the weight off of the upper body while still keeping the weight off the injured limb. The present invention is removable, lightweight and easy to use. The present invention is also adjustable which allows for different size users as well as a means to adjust for comfort and seat height. The present invention seat surface is also high enough so that it is much easier to get out of than a standard chair. This makes it easy to set up after sitting down especially if the user only has the use of one leg which can be a hindrance in getting up from a conventional seat.
To use the present invention the user simply repositions the crutches by positioning the feet of the crutches back and slightly together with removing the top of the crutches in a position slightly in front of the user's shoulders. The crutches are then in a V shape with the sling seat positioned across the V and under the posterior of the user. The user then leans back into a sitting/leaning position with his weight supported by the sling seat and his balance maintained by his feet on the ground.
REFERENCES:
patent: 554019 (1896-02-01), Collins
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patent: 3902731 (1975-09-01), Fagen et al.
patent: 4315655 (1982-02-01), Machnik
patent: 4394045 (1983-07-01), Shaw et al.
patent: 4456284 (1984-06-01), Saka
patent: 5010850 (1991-04-01), Sailer
patent: 5348035 (1994-09-01), Porter
patent: 5911234 (1999-06-01), Hirst
patent: 6257258 (2001-07-01), Smith
Canfield Robert
Sheets Kendal M.
Zito Joseph J.
Zito & Grandinetti
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