U.S. patent number 3,877,426 [Application Number 05/345,370] was granted by the patent office on 1975-04-15 for muscular support.
Invention is credited to Robert P. Nirschl.
United States Patent |
3,877,426 |
Nirschl |
April 15, 1975 |
Muscular support
Abstract
A support for bracing the musculo-tendinous units in the upper
and lower extremities of humans especially for the prevention of
"tennis elbow." A flexible, arcuately shaped pad especially adapted
to be tightly wrapped about a muscle without slippage is
constructed of a two layer laminate of cloth and foam rubber. The
pad is easily tightened by means of a velcro fastener strip
insertable through a fastening ring and reversedly drawn for
attachment to itself.
Inventors: |
Nirschl; Robert P. (Arlington,
VA) |
Family
ID: |
23354773 |
Appl.
No.: |
05/345,370 |
Filed: |
March 27, 1973 |
Current U.S.
Class: |
602/62;
128/DIG.15; 473/212 |
Current CPC
Class: |
A61F
13/108 (20130101); Y10S 128/15 (20130101) |
Current International
Class: |
A61F
13/10 (20060101); A61f 013/00 () |
Field of
Search: |
;128/165,169,87,78,DIG.15 ;273/189A,189R |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gaudet; Richard A.
Assistant Examiner: Yasko; J.
Attorney, Agent or Firm: Schuyler, Birch, Swindler, McKie
& Beckett
Claims
I claim:
1. A support device capable of being wrapped about and surrounding
the muscle of a bodily limb or member without extensive overlap and
capable of applying circumferential pressure to a wide area of said
muscle to thereby relieve internal tension on the muscle,
comprising:
a substantially curvilinear, arcuately shaped pad having a length
greater than its width and shaped to approximate the frustrum of a
cone when wrapped about the muscle of said limb or member, said pad
being flexible in all directions and comprising a laminate having
an inner layer of resilient foamed material bonded to an outer
layer of a substantially inelastic flexible sheet, and
a fastening means for securing said support device tightly about
said muscle, comprising, in combination, at least one velcro
fastener strip attached to the upper surface of said outer layer at
one end of said pad and at the other end of said pad at least one
ring attached to the upper surface of said outer layer, said velcro
fastener strip having a loop section and a hook section, one of
said sections of said velcro strip partially overlapping said pad
and the other of said sections constituting a free end, whereby
said pad can be fastened around the extremity by threading said
free end of said strip through said ring and reversedly drawing
said free end for attachment to said overlapping section.
2. The support device of claim 1 wherein said fastening means for
securing said support device tightly about said muscle comprises,
in combination, a plurality of velcro fastener strips attached to
the upper surface of said outer layer at one end of said pad and at
the other end of said pad a plurality of corresponding rings
attached to the upper surface of said outer layer, each said velcro
fastener strips having a loop section and a hook section, one of
said sections of said velcro strips partially overlapping said pad
and the other of said sections constituting a free end, whereby
said pad can be fastened around the extremity by threading said
free ends of said strips through said rings and reversedly drawing
said free ends for attachment to said overlapping section.
3. The support device of claim 2 wherein each said velcro fastener
strip has a raised portion thereon to loosely engage said ring.
4. The support device of claim 1 wherein a plurality of velcro
strips are attached to the outer surface of said outer layer at one
end of said pad and a matching plurality of rings are attached to
the outer surface at the other end of said pad.
5. The support device of claim 1 wherein said velcro fastener strip
has a raised portion thereon to loosely engage said ring.
6. A support device for wrapping about a bodily limb or member and
applying pressure to the outside of said limb or member to thereby
relieve internal tension on the muscle inside said limb or member,
comprising a flexible arcuately shaped pad said pad having a length
greater than its width and shaped to approximate the frustrum of a
cone when wrapped about the limb or member, the longest sides of
said pad being substantially parallel and substantially arcuate,
the upper arc having a larger radius of curvature than the lower
arc,
said flexible pad comprising a laminate having an inner layer of
resilient foamed material and an outer layer of a substantially
inelastic flexible sheet, fastening means for securing said support
device tightly about said muscle, comprising, in combination, a
velcro fastener strip attached to the upper surface of said outer
layer at one end of said pad and at the other end of said pad a
ring attached to the upper surface of said outer layer, said velcro
fastener strip having a loop section and a hook section, one of
said sections of said velcro strip partially overlapping said pad
and the other of said sections constituting a free end, whereby
said pad can be fastened around the extremity by threading said
free end of said strip through the ring and reversedly drawing said
free end for attachment to said overlapping section, a rigid
plastic sheet attached to said upper surface between said ring and
said other end of said support device.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention pertains to a support for bracing the
musculotendinous units in the upper and lower extremities of
humans. In particular, this invention relates to a muscular support
for relieving the injury known as tennis elbow, which is a painful
inflammation of the tendon attachments at the outside (lateral)
prominence of the elbow, by applying external circumferential
pressure over a wide area of the musculo-tendinous unit to thereby
relieve the tension normally exerted by the muscle.
2. Description of the Prior Art
Tennis is rapidly becoming one of the most popular sports since it
is a social sport that can be played by people of all ages, both
indoors and outdoors, during the day or at night under lights. With
the advent of the popularity of the sport of tennis, especially
among people of various ages and various muscular ability, has come
a new muscular injury called "tennis elbow."
The term tennis elbow may include many difficulties which occur in
and about the elbow; there are at least eleven specific elbow
complaints which have been called tennis elbow. The primary symptom
is a chronic inflammation of the attachment of the common extensor
muscle group (extensor carpi radialis brevis and extensor communis)
to the lateral epicondyle as well as the attachment of the condylar
origin of the radial collateral ligament.
It is believed that this chronic inflammation occurs because the
mechanical construction of the elbow itself predisposes the
individual to injury during the movements of a tennis match. A
prominent radial head creates a fulcrum with two leverage forces,
one a long lever from the radial head just below the point of the
elbow to the wrist where the muscles attach, and the other a short
lever from the radial head to the point of the elbow (lateral
epicondyle). The long leverage force creates great pressure against
the attachment of the common extensor muscle mass, subjecting it to
repetitive and chronic strain with the subsequent formation of
nonelastic scar tissue. This scar tissue often tears again and
tends to become reinflammed. The situation is compounded by the
lack of appropriate extensor muscle power to withstand the forces
which are placed against it (so characteristic of the occasional
athlete who rarely trains for sports activity).
For the most part, the problem occurs because of an inherent
weakness in the design or mechanical relationship of the muscles of
the arm which subject the elbow to increased forces in a specific
area placing an inordinate strain on the tissues.
Treatment for tennis elbow has been primarily medical in nature
ranging from localized injection of cortisone or surgery to simple
rest.
It has been found that the pain of tennis elbow can be relieved and
the injury itself prevented by placing pressure about the smaller
muscle of the forearm. The pressure on the muscle serves to relieve
the internal tension on the muscle by providing a force against
which the muscle can push.
A bandage-like device called the Froimson Tennis Elbow Support has
been developed which can be wrapped about the forearm.
Unfortunately, this device is difficult for the tennis player to
put on unassisted and obtain the desired degree of tightness or
pressure. In addition, the device, although coated on the side
adjacent the skin with a foamed plastic, tends to slip off the arm
during normal tennis play, especially when the arm begins to sweat.
Moreover, the device does not place a uniform pressure about the
muscle unless wrapped carefully.
OBJECTS OF THE INVENTION
This invention has as an object a muscular support which can be
tightly wrapped about a muscle with substantially uniform pressure
without assistance from a second person.
This invention has as a further object a muscular support device
that is curvilinear in design and assumes the generally conical
shape of the muscle or extremity about which it is wrapped.
As still another object, this invention provides a muscular support
that resists slippage from the extremity during vigorous athletic
motion such as that occuring during a game of tennis.
As yet another object, this invention provides a strong pad of
rugged, long wearing characteristics which maintains its appearance
and utility over lengthy use.
SUMMARY OF THE INVENTION
These and other objects of the invention are achieved by a muscular
support device comprising a flexible, arcuately shaped pad, said
pad having a length greater than its width and shaped to
approximate the frustrum of a cone when wrapped about the limb or
member, the longest sides of said pad being substantially parallel
and substantially arcuate, the upper arc having a larger radius of
curvature than the lower arc,
said flexible pad comprising a laminate having an inner layer of
resilient foamed material and an outer layer of a substantially
inelastic flexible sheet,
one end of said pad having a velcro fastener strip attached to the
outer surface of said outer layer and the other end of said pad
having a ring attached to the outer surface of said outer layer,
said velcro fastener strip having a loop section and a hook
section, one of said sections of said velcro strip partially
overlapping said pad, and the other of said sections comprising a
free end, whereby said pad can be fastened around the extremity by
threading said free end of said strip through the ring and
reversedly drawing said free end for attachment to the other
section of the velcro fastener thereby tightening the support
device.
In another embodiment, said pad has a binding strip of elastic
cloth around the edges of said pad, the binding strip being
attached to the laminate by stitching from the foam side of said
laminate.
In still another embodiment, said pad has two velcro strips, the
free end of each strip having a raised portion thereon, said raised
portion acting as a "catch" to permit the free end to be inserted
in the rings and held in place by the raised portion so that the
wearer may form the pad into an enlarged conical shape and maintain
that shape by virtue of the raised portion or catch thereby
permitting the wearer to put his arm through the cone before
tightening.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other objects and advantages of the invention will become
more apparent to those skilled in the art by reference to the
following drawings:
FIG. 1 is a perspective view of the muscular support device of the
invention in position, tightly wrapped about the forearm.
FIG. 2 is a top plan view of the muscular support device of the
invention.
FIG. 3 is a bottom plan view of the muscular support device of the
invention.
FIG. 4 is an enlarged perspective view of the muscular support
device of the invention loosely engaged and ready to be placed
about the arm.
FIG. 5 is a sectional view along the line 5--5 of FIG. 2.
FIG. 6 is a sectional view along the line 6--6 of FIG. 2.
DETAILED DESCRIPTION OF THE INVENTION
As best seen in FIGS. 2 and 3, the muscular support pad of this
invention comprises a substantially arcuate pad 1, having
substantially parallel longitudinal sides 2 and 3, side 2 having a
larger radius of curvature than side 3. Pad 1 comprises a laminate
4 having a polymeric foam bottom layer 5, which is preferably foam
rubber of about 1/8 to 1/4 inch thickness, and a flexible but
relatively inelastic sheet upper layer 6 which is preferably cotton
duck cloth. A suitable laminate of foam rubber and cotton is
commercially available from PROTEK-TOE PRODUCTS of Union, New
Jersey. It is possible to use other foams than foam rubber but the
foam should be selected so that it is highly resilient, has similar
"fight back" properties so it tends to resist compression, and has
a coefficient of friction sufficiently similar to that of foam
rubber whereby it resists slipping even when the skin underneath
the support device begins to sweat. Preferably the surface of the
foam rubber is smooth appearing and the pore size of the foam at
the surface is very tiny giving the outer surface of the foam a
skin-like appearance.
The laminate 4 is preferably bordered by a binding strip 7 which is
an elasticized fabric. The binding strip can be eliminated but at a
sacrifice in the overall wear properties and appearance of the
support. The elastic piping, as are all other attachments to the
pad, is sewn on by stitching 8 which is sewn through the foam
rubber side. By stitching through the foam rubber side is meant
stitching with the foam rubber side in the upper position, the
stitches 8 cause the foam rubber 5 to compress. The stitches,
therefore, are indented below the surface that is in contact with
the skin thereby lessening the danger of skin irritation due to
abrasion caused by raised stitching.
As best seen in FIGS. 2 and 4, to one end of the pad is attached a
pair of flexible VELCRO or equivalent fastener strips. Each
fastener strip has hook portions 10 and 10' and loop portions 11
and 11'. The other end of the pad has a rigid metal ring 12
attached to the flexible outer sheet layer by looped cloth ribbon
13. As seen in FIGS. 1 and 4, the support is kept firmly about the
muscle by threading the free loop end 11 of VELCRO fastener strip 9
through the underside of rigid metal ring 12 and reversedly back
for attachment to hook end 10 of the VELCRO fastener strip.
In another embodiment, the free end 11 of the VELCRO fastener strip
can be looped back upon itself and stitched thereby forming a
raised portion or catch 14. This raised portion 14 permits the user
to form a circular, loosely engaged support through which he can
insert his arm prior to final positioning of the support device and
tightening of the VELCRO fastener. This embodiment can be readily
seen in FIG. 4.
To facilitate tightening and prevent misalignment of the ends of
the pad when the fastener strip is tightly drawn, a particularly
preferred embodiment shown in FIG. 5 has a plastic sheet material
15 such as celluloid or its equivalent stitched onto the upper
surface of the outer fabric sheet.
The fastener used to tightly secure the muscle support about the
arm can be modified using substitutes well known in the prior art.
Rather than use dual narrow VELCRO strips, one could use a single
wide strip, moreover, belts or buckles can be substituted. The use
of dual strips of the type disclosed herein permits ready
adjustment during the course of a tennis match to accommodate minor
changes in muscle size due to expansion and contraction of the
muscle.
The muscular support of the invention can be used for the
prevention of injury to muscles in many parts of the body. It can
be used on the leg by bicycle riders and athletes. In addition, the
support can be used as a preventive measure by those who play
tennis or work at occupations such as carpentry which because of
their nature prove to cause similar injuries.
In addition, an inflatable sheet can be attached along the outer
surface of the support device whereby it may serve as a bandage to
stop excessive bleeding in operations or as an inflatable
splint.
Size of the support device is not important but it is advantageous
to have three sizes, each sufficient to be wrapped about and
completely surround the muscle of the forearm without extensive
overlap. Smaller sizes would be suitable for less muscular
individuals.
These and other modifications will be readily apparent to those
skilled in the art.
* * * * *