U.S. patent number 3,804,085 [Application Number 05/300,329] was granted by the patent office on 1974-04-16 for traction splint.
Invention is credited to Adolph Eshuis, Andrew M. Jansma.
United States Patent |
3,804,085 |
Eshuis , et al. |
April 16, 1974 |
TRACTION SPLINT
Abstract
A traction splint including a form fitted body portion adapted
to surround the calf of a leg, and to which is fastened a strap to
apply a pulling force and a foot portion adapted to support the
foot. An elastic strap provides an exercise means by which the
problem of "foot drop" may be avoided.
Inventors: |
Eshuis; Adolph (Rock Valley,
IA), Jansma; Andrew M. (Rock Valley, IA) |
Family
ID: |
23158652 |
Appl.
No.: |
05/300,329 |
Filed: |
October 24, 1972 |
Current U.S.
Class: |
602/28 |
Current CPC
Class: |
A61F
5/0585 (20130101) |
Current International
Class: |
A61F
5/04 (20060101); A61F 5/058 (20060101); A61f
005/04 () |
Field of
Search: |
;128/85,84,83,87,80,165 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
|
|
523,538 |
|
Aug 1921 |
|
FR |
|
731,133 |
|
Aug 1932 |
|
FR |
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Primary Examiner: Gaudet; Richard A.
Assistant Examiner: Yasko; J.
Claims
We claim:
1. Traction means for applying traction force to a patient's leg
comprising body means formed to fit the calf of the patient's leg
and including fastening means on said body means for securing said
body means on the patient's leg, foot supporting means formed
integrally with said body means and including fastening means on
said foot supporting means for securing said foot supporting means
on the patient's foot, elastic means engaged between said foot
supporting means and said body means adapted to hold said foot
supporting means in a normal relationship to said body means but
allowing movement against the resistance thereof whereby the foot
can be exercised and strap means fastened to said body means and
extending beyond said foot supporting means whereby tension can be
applied to said body means.
2. The device of claim 8 in which a neck portion forming a
substantial open space is provided between said body portion and
said foot portion.
3. The device of claim 1 in which said elastic means is adjustably
fastened to said body part.
4. The device of claim 1 in which said body means is held onto the
patient's leg by being wrapped around the leg and pressure
sensitive means on said body adapted to hold said body part in its
wrapped position.
5. The device of claim 1 in which said foot portion is formed to
lie flat and is adapted to be wrapped around the patient's foot and
pressure sensitive means on said foot portion to hold said foot
portion in its wrapped around position.
Description
BACKGROUND AND SUMMARY OF THE INVENTION
This invention pertains to traction splints of the type used on
hospital patients where traction applied to the leg is indicated.
The device is also adapted to be used in nursing homes or for home
use if desired.
There are many times when patients in hospitals or nursing homes
are to be treated by applying traction to the leg or legs of the
patient. In these cases, some means of grasping the leg is
necessary so that the pulling force can be applied.
Present traction devices are made almost exclusively from non-woven
materials and are generally of a trapezoidal form when opened. This
trapezoidal form is wrapped around the leg of the patient and is
snugly fastened above the ankle. A strap may be used to connect
weights to the device.
Applying pulling tension to the leg at the ankle in a relatively
concentrated area has the effect of cutting off circulation in that
region leading to a tissue necrosis. Additionally, there is no
support for the foot which leads to a relaxation and weakening of
the muscles controlling the foot and causing the problem known as
"foot drop."
By our invention we provide a device which applies the force over a
broad area of the calf muscle in the patient's leg. As a result,
circulation is not normally cut off and there is no necrosis
problem. In addition, we provide a means for supporting the foot of
the patient. This latter means also allows for exercising the foot
muscles so that there is no atrophy and no loss of function.
FIGURES
FIG. 1 is a plan view of our device opened and lying relatively
flat,
FIG. 2 is a side view of the device as it would be closed around a
patient's leg but without the foot piece in place, and
FIG. 3 is a view similar to FIG. 2 showing the device as actually
applied to a patient's leg and foot with the exercise elastic in
place.
DESCRIPTION
Briefly our device comprises a form fitting leg engaging part
adapted to be wrapped about a patient's leg and a foot holding part
attached to the form fitting part to allow normal ankle action and
an elastic member engaged between the two parts to resiliently
resist movement so that the foot controlling muscles will have a
force to exercise against.
More specifically and referring to the drawings, our device is made
from a heavy woven fabric form lined with a foam material. Two flat
pieces are stitched together along a seam line 10 to provide a form
adapted to fit the calf of a patient's leg. When stretched out, the
device assumes a plan-form somewhat like that shown in FIG. 1.
However, the FIGURE does not totally represent the concavity
necessary to embrace the muscle. It is apparent that the device
cannot lie totally flat in this position.
The body 11 is enlarged in the central part as shown in FIGS. 2 and
3 to fit the calf muscle. Because of that feature, we have found
that it may be necessary to provide two or three sizes, but the use
of a wrapped around portion 12 and pressure sensitive fastening
tapes 13 allows considerable flexibility so far as size is
concerned. The pressure sensitive fasteners on these tapes 13 are
of a type well known in the art. The pads 14 to which the tapes 13
fasten are long enough so that there is considerable adjustability
provided to accommodate legs of different girth.
A pulling strap 20 is stitched to the wrapped around part 12 and
forms a loop to which can be attached the traction weights so that
force is transmitted from the weights through the strap 20 to the
body 11 of our device. From there it is uniformly distributed as
pressure on the calf muscle. Specifically to be avoided is any
tightening at the upper end of the form just below the knee. The
desired situation is a more uniform distribution of pressure and an
avoidance of concentrated tightness which would cut circulation in
the leg.
A foot supporting portion 15 is connected to the body 11 by means
of a narrower or neck portion 16 all formed integrally in the two
flat pieces which are stitched together. The front support portion
also has wing portions 17 adapted to be wrapped around the foot and
fastened with a pressure sensitive fastener on a tape 18. As
illustrated, the foot portion is formed to lie flat when not in
use. In use, however, the neck part 16 follows the contour of the
patient's heel (FIG. 3) and provides a sort of hinge arrangement so
that the patient's ankle is free to operate.
In order to provide a force against which to exercise the
foot-controlling muscles, we use an elastic strap 21 which is
stitched to one wing 17 of the foot part 15. The other end is
adapted to be held preferably by a buckle device 22 fastened to one
of the straps 13. A buckle is preferable because then the length
and tension in the elastic strap 21 can be varied.
Support of the foot in the normal position is desirable to preserve
some normal tension in the muscles where traction is to be
continued for some time. In addition, use of the elastic strap 21
provides a pressure against which the foot can be moved to provide
a moving exercise which will preserve the muscle tone so that the
patient will be able to walk with much more nearly a normal muscle
reaction than is often the case with present devices.
In use, the patient's leg is encased by wrapping the portions 12
around the sides of the leg and over the shin. The straps 13 are
then pulled up snug (not tight) and are fastened by pressing the
pressure sensitive fastener parts together. The foot part is then
wrapped around the patient's foot after running the neck part 16
over the heel. Again the fastening is closed. The strap 21 is then
pulled up with a small amount of tension and fastened in the buckle
22. Proper traction force can then be applied to the strap 20 to
provide the necessary tension. While the device is being used, the
patient can exercise his foot against the elastic strap 21 on a
more or less regular basis as required.
* * * * *