U.S. patent number 3,556,105 [Application Number 04/731,953] was granted by the patent office on 1971-01-19 for electrical stimulator and mitten.
Invention is credited to Lillian B. Shepard.
United States Patent |
3,556,105 |
Shepard |
January 19, 1971 |
ELECTRICAL STIMULATOR AND MITTEN
Abstract
An electrical stimulator of the type which applies a low
frequency oscillating current to selected regions of the body to
cause periodic contraction and release of the muscle tissue through
which the current flows. In a preferred form, the stimulator
includes an intermediate ply sandwiched between two outer plies and
defining a hand receiving enclosure therewith. A pair of spaced
contacts are mounted on one of the outer plies and a pair of
conductors extend along one face of such ply and are connected,
respectively, to the contacts. The conductors are connectable to a
source of oscillating electrical current and are retained against
such face of the ply by suitable means. Preferably, an absorbent
pad covers both of the contacts and spans the space therebetween so
that when the pad is soaked with a conductive fluid, a conductive
path between the contacts is provided.
Inventors: |
Shepard; Lillian B. (Los
Angeles, CA) |
Family
ID: |
24941585 |
Appl.
No.: |
04/731,953 |
Filed: |
May 24, 1968 |
Current U.S.
Class: |
607/152; 607/150;
607/153 |
Current CPC
Class: |
A61N
1/0452 (20130101); A61N 1/0492 (20130101); A61N
1/0456 (20130101); A61N 1/0484 (20130101); A61N
1/048 (20130101) |
Current International
Class: |
A61N
1/04 (20060101); A61n 001/32 () |
Field of
Search: |
;128/404,406,410,411,417,418,381,362,24.5,(Velcro. Digest)/
;128/(Pickup Digest)/ |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Trapp; L. W.
Assistant Examiner: Howell; Kyle L.
Claims
I claim:
1. An electrical stimulator mitten comprising:
first and second outer plies;
an intermediate ply sandwiched between said outer plies, each of
said plies being constructed of relatively flexible material and
said intermediate and second plies being constructed of
nonconductive material, said second ply having outer and inner
faces;
said plies being joined together along at least a portion of the
peripheries thereof to define an enclosure between said first and
intermediate plies, a section of the peripheries of the
intermediate ply and the first ply being unjoined to define an
opening for providing access to said enclosure, said opening and
said enclosure being sized to receive the hand of a user whereby
said enclosure is of mittenlike construction;
first and second spaced contacts;
means for mounting said contacts on said second ply, said
intermediate ply insulating said contacts from the interior of said
enclosure whereby the intermediate ply does not provide a
conductive path between said contacts and the hand of a user within
said enclosure;
first and second electrical conductors;
means for connecting said first and second contacts to said first
and second conductors, respectively;
tunnel means for guiding said conductors away from said contacts
whereby electrical energy can be supplied through said conductors
to both of said contacts;
an absorbent pad overlying said first and second contacts and being
in electrical contact therewith, said pad extending between said
contacts with the pad overlying and confronting at least a portion
of the outer face of said second ply; and
means for connecting said pad to at least one of said plies.
2. An electrical stimulator mitten as defined in claim 1 wherein
said means for mounting said contacts on said second ply includes a
first connector element mounted on said second ply and clampingly
engaging said inner and outer faces thereof, said first contact
includes a second connector element, said first and second
connector elements being releasably interconnectable to releasably
connect said first contact to said second ply.
3. An electrical stimulator mitten as defined in claim 2 wherein
said pad is constructed of a sponge material, said one ply is said
second ply, and said means for connecting said pad to said second
ply includes soft material on one of the second ply and the pad and
hooklike elements on the other of said second ply and said pad,
said plies being substantially coextensive.
4. An electrical stimulator mitten as defined in claim 1 wherein
said last mentioned means includes a first connector element
mounted on said absorbent pad, said first contact defining a second
connector element, said first and second connector elements being
interlockable to releasably affix said absorbent pad to said second
ply.
5. An electrical stimulator comprising:
first and second outer plies;
an intermediate ply sandwiched between said outer plies, each of
said plies being constructed of relatively flexible material and
said intermediate and second plies being constructed of
nonconductive material, said second ply having outer and inner
faces;
said plies being joined together along at least a portion of the
peripheries thereof to define an enclosure between said first and
intermediate plies, a section of the peripheries of the
intermediate ply and the first ply being unjoined to define an
opening for providing access to said enclosure, said opening and
said enclosure being sized to receive the hand of a user whereby
said enclosure is of mittenlike construction;
first and second spaced contacts;
means for mounting said contacts on said second ply, said
intermediate ply insulating said contacts from the interior of said
enclosure whereby the intermediate ply does not provide a
conductive path between said contacts and the hand of a user within
said enclosure;
first and second electrical conductors;
means for connecting said first and second contacts to said first
and second conductors, respectively;
tunnel means for guiding said conductors away from said contacts
whereby electrical energy can be supplied through said conductors
to both of said contacts;
an absorbent pad overlying said first and second contacts and being
in electrical contact therewith, said pad extending between said
contacts with the pad overlying and confronting at least a portion
of the outer face of said second ply;
means for connecting said pad to at least one of said plies;
and
means for producing low frequency oscillating current electrically
connectable to said conductors.
Description
BACKGROUND OF THE INVENTION
As is well known, electrical current can be pulsed through local
regions of the human body to contract the muscles through which the
current passes. When current flow is halted, the muscles are
permitted to relax. Accordingly, the muscles can be exercised or
flexed by passing a low frequency oscillating current therethrough.
Such muscle exercise can be used to firm and strengthen the muscles
for cosmetic purposes, or to massage and relax the muscles. The
present invention is primarily concerned with an electrical
stimulator that is particularly adapted to accomplish all of these
purposes.
Numerous devices have been used to apply oscillating current to
regions of the body; however, each of these has possessed some
disadvantages. For example, some of these stimulators are
relatively rigid, and therefore are uncomfortable to maintain in
continuous contact with the body. Such rigidity may be brought
about, for example, by the use of numerous large conductive metal
portions on the exterior surface thereof. Still other stimulators
require the application of a conductive liquid or other flowable
substance to the body prior to usage of the stimulator. Other
significant disadvantages of prior art stimulators is that they are
generally difficult to construct and they cannot simultaneously
pass current through both the facial and temporal nerves.
SUMMARY OF THE INVENTION
The present invention provides an electrical stimulator of simple
construction which generally overcomes the disadvantages noted
above. Construction is substantially simplified by using an
intermediate ply and first and second outer plies with the
intermediate ply being sandwiched between the two outer plies. Each
of the plies are constructed of relatively flexible material and
are joined together along peripheral portions thereof to define a
hand receiving enclosure between the intermediate ply and the first
ply. A portion of the peripheries of the intermediate and first
plies are unjoined to define an opening for providing access to the
enclosure. Thus, the three plies form a mitten. As the three plies
of material are all relatively flexible, they can be comfortably
applied to the body and will easily conform to the contour
thereof.
First and second spaced contacts are mounted on the second outer
ply, and they are spaced sufficiently to contact the facial and
temporal nerves simultaneously. It has been found that such spacing
should be at least 11/2 inches and preferably 13/4 inches, in order
to assure that both of the nerves can be simultaneously stimulated.
The intermediate ply is constructed of electrically insulating
material to electrically insulate the contacts from the interior of
the mitten to preclude current flow to the hand of the user.
The contacts are supplied with electrical energy by a pair of
conductors which may be electrically connected to a suitable source
of low frequency oscillating current. The conductors extend along
one face of the second outer ply and are suitably retained
thereagainst to prevent them from becoming entangled with the
mitten or the surrounding structure. Such retaining means may be in
the form of a tunnel on the outer face of the second ply or may be
provided by running the conductors between the second ply and the
intermediate ply.
To eliminate the need for the user having to coat a region of the
body with a conductible flowable substance prior to usage of the
stimulator, the present invention provides for the mounting of an
absorbent pad on the mitten. The absorbent pad overlies both of the
contacts and extends therebetween. The absorbent pad can be soaked
or impregnated with a conductive fluid such as water of a special
conductive cosmetic preparation to thereby provide a conductive
path between the two contacts.
To facilitate soaking of the pad and to permit soaking of the pad
without wetting of the mitten, the present invention provides means
for removably mounting the absorbent pad on the second outer ply.
Such removable mounting means may include Velcro strips on the
second ply and the pad. In another form of the present invention,
such means includes cooperating connector members on the pad and
the second ply with the connector member on the second ply forming
at least a portion of the contacts.
To minimize the cost of replacement and to facilitate repair of the
mitten, the present invention teaches that the electrical
conductors may be removably connected to the mitten. In a preferred
form of the invention, this is accomplished by mounting one
connector member on the second ply and by fixedly attaching the end
of the conductor to the contact. The contact includes a cooperating
connector member which is interlockable with the connector member
on the second ply to releasably interconnect the two connector
members.
The invention, both as to its organization and method of operation
together with further features and advantages thereof may best be
understood by reference to the following description taken in
connection with the accompanying illustrative drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view showing the electrical stimulator in
use.
FIG. 2 is a top plan view of one form of electrical stimulator
constructed in accordance with the teachings of this invention and
electrically interconnected to a source of low frequency
oscillating current.
FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.
2.
FIG. 4 is an enlarged, fragmentary, sectional view taken along line
4-4 of FIG. 2.
FIG. 5 is an enlarged, fragmentary, exploded, sectional view
illustrating one of the contacts and the adjacent portions of the
three plies and sponge.
FIG. 6 is a top plan view of a second form of an electrical
stimulator constructed in accordance with the teachings of this
invention.
FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG. 6
with the absorbent pad elevated above the contacts.
FIG. 8 is an enlarged, fragmentary, exploded, sectional view
illustrating one of the contacts and the adjacent portions of the
three plies and sponge.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to the drawings and in particular to FIGS. 1--5 thereof,
reference numeral 11 designates an electrical stimulator
constructed in accordance with the teachings of this invention. As
best shown in FIG. 3, the stimulator 11 includes first and second
outer plies 13 and 15 and an intermediate ply 17 sandwiched between
the two outer plies. The intermediate ply 17 and the outer ply 13
are preferably coextensive and the outer ply 15 is slightly larger
than either of the other two plies to permit the ply 15 to form a
loop 19 which embraces the peripheral regions of the plies 13 and
17. The plies 13, 15 and 17 are thus interconnected along the
peripheral regions thereof as by stitching or bonding.
Each of the plies 13, 15 and 17 are preferably constructed of a
relatively flexible material so that they can readily adapt to the
contour of the body portion which they engage. The intermediate ply
17 performs an insulating function, as described more fully
hereinbelow, and accordingly, this ply should be constructed of a
nonconductive material such as plastic which may be transparent.
The outer plies 13 and 15 are also preferably constructed of a
nonconductive material, and in the embodiment illustrated, the ply
13 is constructed of a transparent plastic material while the ply
15 is constructed of a soft decorative fabric. Alternatively, all
three of the plies 13, 15 and 17 can be constructed from a heat
sealable plastic material to thereby permit joining of the
peripheral edge portions thereof with a heat sealing technique.
As shown in FIG. 3, the plies 15 and 17 cooperate to define a hand
receiving space or enclosure 21. Edge portions 23 (FIG. 2) of the
plies 15 and 17 are disconnected to form an opening 24 (FIG. 1)
through which the hand of the user may project into the enclosure
21.
A pair of contact mounting members 25 which are preferably
identical, are mounted on the outer ply 13. The contact mounting
members 25 shown in FIG. 5 includes first and second apertured
plate members 27 and 29 positioned respectively on opposite sides
of the outer ply 13. The contact mounting member 25 may be the
female portion of a conventional fastener known as a car fastener.
Thus, the plate member 29 has an upwardly extending segmented,
annular flange 31 which projects through the aperture in the plate
member 27 and is either crimped over the rim of the aperture or the
flange 31 may include a plurality of resilient outwardly biased
segments with which frictionally retain the two plate members
together. With the contact mounting members 25 thus arranged, they
provide an upwardly opening aperture 33.
The stimulator 11 also includes a pair of conductors 35 and 37
which are connectable to an electrical energy source, in the form
of oscillator means 39 (FIG. 2). The electrical energy source 39 is
preferably of the type which supplies low frequency oscillating
current, the intensity of which can be appropriately manually
varied as by varying the voltage thereof.
The other ends of the conductors 35 and 37 are connected
respectively to identical contacts 41 as shown in FIG. 5. The
connection between the conductors 35 and 37 and the contacts 41 may
be of a permanent nature and may be accomplished, for example, by
soldering. Each of the contacts 41 is preferably in the form of a
conductive connector member having a projection 43 adapted to be
received within the aperture 33 and resiliently retained therein by
the flange 31. Thus, the the contact 41 forms the male portion of
the so-called car fastener and serves to detachably connect the
conductors 35 and 37 to the members 25. The members 25 are
preferably constructed of a conductive metal, and therefore may be
considered as part of the contacts of the stimulator.
The conductors 35 and 37 may be in the form of insulated wires and
movement thereof can be advantageously restrained by a fourth ply
or layer of material 45 as shown in FIGS. 2 and 4. Although the ply
45 may take various forms, in the embodiment illustrated, the ply
45 is in the form of a narrow, thin layer of plastic material which
is heat-sealed to the ply 13 to define therewith a tunnel 47
through which the conductors 35 and 37 extend.
An absorbent pad 49 is detachably mounted on the ply 13. The pad 49
may be of any material capable of absorbing and retaining a
sufficient amount of conductive liquid such as tap water to provide
a conductive path between the contacts 41. A relatively thin sponge
may be suitable for this purpose.
In the embodiment shown in FIGS. 1--5, the sponge is removably
mounted on the ply 13 with strips 51 of Velcro. As is well-known,
the strips 51 include a strip of soft material 53 (FIG. 3) mounted
on the pad 49 and a coextensive strip 55 of hooked elements, which
interlock with the soft material to retain the two strips 53 and 55
together. Of course, the positions of the soft material 53 and the
hook elements 55 may be reversed, if desired.
In operation of the stimulator 11, the contacts 41 are connected to
their respective contact mounting members 25 to thereby provide a
conductive path between the oscillator means 39 and the contacts
41. The absorbent pad 49 is then soaked with a conductive liquid to
the extent required to provide a conductive path between the
contacts 41 when the pad is placed in contact with the user. The
pad 49 is then mounted on the ply 13 using the Velcro strips 51.
The hand of the user is then inserted through the opening 24 to
position the pad 45 in contact with the body portion which is to be
stimulated.
The oscillator means 39 is then energized and a control knob
thereof is turned to provide the desired intensity of stimulation.
The conductive liquid within the pad 49 wets the skin portion
contacted thereby and the electrical energy passes between the
contacts 45 through the user.
A second form of stimulator 101 is shown in FIGS. 6--8. The
stimulator 101 differs from the stimulator 11 primarily in the
manner for attaching the pad to the stimulator, the positioning of
the conductors, and then the construction of the contacts.
The stimulator 101 includes a pair of outer plies 103 and 105 and
an intermediate ply 107 (FIGS. 7 and 8) which are arranged as
described above in connection with FIGS. 1--5. A pair of identical
contacts 109 are mounted on the ply 103. As best shown in FIG. 8,
each of the contacts 109 includes the male portion of a car
fastener, such male portion including a peripheral flange 111 and a
projection 113 with an enlarged head. The projection 113 protrudes
through an aperture in the ply 103 and the flange 111 engages the
inner face of the ply 103. Although any suitable means for
retaining the contact 109 in this fashion on the ply 103 may be
utilized in the embodiment illustrated, such means includes a ring
member 115 having radial lances 117 therein. The projection 113 can
be forced through the opening in the ring member 115 with a snap
action, and the enlarged head thereof is resiliently retained by
the ring member.
A pair of electrical conductors 119 and 121 are connected at one
end to oscillator means and at the other end to the contacts 109.
As shown in FIG. 8, the conductor 119 is wrapped around the base of
the projection 113 so that when the contact 109 is in position, the
conductor is clamped between the flange 111 and the lower or inner
face of the ply 103. In order to make this arrangement possible,
the conductors 119 and 121 extend between the plies 103 and 107
with the ply 107 serving to insulate the contacts 109 from the
volume enclosed by the plies 105 and 107. In order that the plies
103 and 107 may guide the conductors 119 and 121, these plies may
be secured together as by heat sealing along spaced parallel
portions 123 (FIG. 6).
An absorbent pad 125 is detachably secured to the remainder of the
stimulator 101 in overlying relationship to the contacts 109. The
pad 125, like the pad 49, is constructed of suitable absorbent
material and it performs the same function as the pad 49. The pad
125 is however detachably secured directly to the contacts 109. To
this end, the pad 125 carries a pair of identical female connector
members 127, which may be the female portions of a conventional car
fastener. The connector members 127 cooperate with the contacts
109, which form the male portion of the fastener to removably mount
the pad on the remainder of the stimulator 101.
Each of the connector members 127 includes ring members 129 and 131
having resilient axially extending flanges which can be assembled
in telescoping relationship to resiliently retain the two ring
members 129 and 131 together in a conventional manner. The flange
portions of the ring members 129 and 131 then engage the opposite
faces of the pad 125 to firmly mount the connector member 127 on
the pad. With the connector member 127 thus mounted on the pad 125,
it can receive and lockingly retain the projection 113 of the
contact 109. Thus, the contact 109 and the member 127 form a
fastener element for releasably retaining the pad 125 in overlying
relationship to the contacts. As the member 127 is preferably
constructed of metal it may be considered as a portion of the
contact 109. The operation of the stimulator 101 is the same as
that described above for the stimulator 11.
Although exemplary embodiments of the invention have been shown and
described, many changes, modifications and substitutions may be
made by one having ordinary skill in the art without necessarily
departing from the spirit and scope of this invention.
* * * * *