U.S. patent number 3,685,645 [Application Number 05/064,207] was granted by the patent office on 1972-08-22 for defibrillation electrode pad and package therefor.
This patent grant is currently assigned to Physio-Control Corporation. Invention is credited to Harold H. Kawaguchi.
United States Patent |
3,685,645 |
Kawaguchi |
August 22, 1972 |
DEFIBRILLATION ELECTRODE PAD AND PACKAGE THEREFOR
Abstract
Absorbent pads soaked with a conductive solution are packaged in
moistureproof packages in a manner which assures easy access to the
pads under the emergency conditions normally associated with the
use of defibrillation equipment. Two separate moistureproof
containers in the form of plastic bags are sealed together with
each bag containing a soaked pad. The two bags are so arranged and
interconnected that the user can easily retrieve the pads for
immediate application to the chest of a victim.
Inventors: |
Kawaguchi; Harold H. (Seattle,
WA) |
Assignee: |
Physio-Control Corporation
(Seattle, WA)
|
Family
ID: |
22054291 |
Appl.
No.: |
05/064,207 |
Filed: |
August 17, 1970 |
Current U.S.
Class: |
206/210; 607/153;
383/38; 206/438; 383/209 |
Current CPC
Class: |
B65D
75/5805 (20130101); B65D 81/3261 (20130101); B65D
75/30 (20130101) |
Current International
Class: |
B65D
81/32 (20060101); B65D 75/52 (20060101); B65D
75/58 (20060101); B65D 75/28 (20060101); B65D
75/30 (20060101); B65d 081/22 (); B65d 031/12 ();
A61b 019/00 () |
Field of
Search: |
;206/63.2R,56AA,56AB,47A
;128/2.6E,417 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Summer; Leonard
Claims
What is claimed is:
1. A defibrillation electrode pad and package combination
comprising:
a. a foldable package having two watertight pockets and a
connecting portion therebetween;
b. said connecting portion being bendable along a transverse line
whereby said package can be folded so that the pockets lie against
one another;
c. said package further having a transverse tear line across each
of said pockets and parallel to said transverse fold line whereby
when folded said connecting portion can be torn away along said
tear lines to open said pockets simultaneously; and
d. a defibrillation electrode pad soaked in an electrically
conductive solution contained in each of said pockets.
2. A defibrillation electrode pad and package combination
comprising a package having two watertight pockets and a connecting
portion therebetween, said connecting portion being bendable along
a transverse line and scored on each side of said transverse line
whereby said pockets can be separated and opened simultaneously by
tearing across said connecting portion, and a defibrillation
electrode pad held in a conductive solution in each of said
pockets.
3. The combination of claim 2 wherein said connecting portion is
scored along parallel lines intersecting the respective pockets and
is foldable between said lines so that said pockets lie flat
against one another and said connecting portion is thereby
positioned along one edge of the package to be gripped and torn
away to open said pockets simultaneously.
4. The combination of claim 3 wherein said package is formed of
plastic walls welded together along peripheral lines defining said
pockets, and wherein a weld line extends across said connecting
portion between said score lines.
5. The combination of claim 4 wherein said score lines extend
across an edge of the electrode pad contained in each pocket
whereby said pads are exposed for gripping when said connecting
portion is removed.
Description
Defibrillation equipment of various types is well known at the
present time and finds widespread usage in hospitals and is
typically carried by emergency rescue vehicles. The defibrillation
equipment basically includes a high energy output electric supply
together with suitable electrodes for applying a large quantity of
electrical energy to the chest of a victim whose heart has gone
into fibrillation. In using such equipment it is important that the
electrodes made good electrical contact with the chest of the
patient so that the stored energy is actually delivered to the
victim. Poor electrical contact can result in burning of the skin
and also can prevent the application of the desired quantity of
electrical energy to the victim.
It is typical in the art of defibrillating a patient to make use of
an electrically conductive paste or jelly beneath the electrodes of
the defibrillation equipment in order to achieve a low resistance
electrical connection. However, such pastes and jellies present a
problem in that they typically cause the electrodes to slide about
the chest of the patient. When repeated defibrillation signals are
required, it is found that the subsequent application of the
electrodes to the slippery skin of the patient can present a
problem. This is particularly true when the defibrillation is being
attempted "in the field" or at a remote location where a person may
have suffered the heart disorder. In those cases, as well as in the
intensive care units of a hospital, it is extremely important that
the defibrillation equipment be placed in operation at the earliest
possible time if the life of the patient is to be saved. In order
to overcome some of the problems associated with conductive jellies
and pastes, pads of absorbent material such as surgical paper or
cloth soaked in a saline solution have been utilized beneath the
defibrillation electrodes. However a problem has been encountered
in that such pads necessitate pre-soaking, which results in limited
shelf life of the pads. A saline bath can also be made available so
that the personnel using the defibrillation equipment can soak the
pads at the time of defibrillating the patient. This of course adds
to the time required to actually apply the defibrillation signals
to a patient once the patient has been reached. The latter approach
is also impractical in those cases where the defibrillation
equipment is carried in an emergency vehicle which typically rushes
to the scene of a fallen victim, with the personnel typically
rushing from the vehicle with the defibrillation equipment in hand
in order to apply the defibrillation signals to the victim at the
earliest possible moment.
It is therefore an object of the present invention to provide an
improved defibrillation electrode pad and package.
Another object of the present invention is to provide a conductive
pad assembly for defibrillation equipment with the conductive pad
having an extended shelf life and with the package assembly
assuring ready removal and separation of two pads.
In accordance with the teachings of the present invention, a pair
of pads soaked in a conductive solution are sealed inside of
separate plastic bags with the plastic serving to prevent drying of
the soaked pads. A saline solution works well for soaking the pads
to make them good electrical conductors. Two such bars or packages
are interconnected in a manner which facilitates the immediate
removal of each of the pads by the user by tearing the bags at a
predetermined location. By having two such separate bags
interconnected, the user is always assured of having the required
conductive pad for each of the electrode assemblies of the
defibrillation equipment typically used at the present time.
The above and additional advantages and objects of the invention
will be more clearly understood from the following description when
read with reference with the accompanying drawings.
FIG. 1 is an isometric view of a defibrillation electrode pad and
package combination according to the invention laid out flat and
showing electrode pads contained in pockets of the transparent
package with a foldable and removable portion connecting the
pockets.
FIG. 2 is an isometric view of the pad and package combination
shown in FIG. 1, showing the connecting portion being torn away to
open the pockets for access to the pads in accordance with the
invention.
FIG. 3 is an isometric view showing the folded connecting portion
torn away leaving the pockets open along the severance lines.
FIG. 4 is a side view of another embodiment of the invention, with
the package shown folded and having a curved tear line so that when
the connecting portion is torn free a portion of the defibrillation
pad is directly exposed for ease of removal.
The electrode pad and package combination shown in FIG. 1 consists
of a substantially rectangular plastic package 10 having
moistureproof pockets 12 and 14 at each end in each of which is
contained an electrode pad 16, 18 soaked in a conductive solution,
such as a saline solution. The pockets 12 and 14 are formed by
opposite walls 20 and 22 bound together by heat or pressure welds
along peripheral lines 24 and 26, 28 and 30. The foldable
interconnecting portion 32 is bounded by scored tear lines 34 and
36 extending across the package with notches 38 at the ends of the
tear lines to make it easier to start the tear under the emergency
conditions surrounding use of the pads. The entire package is
preferably constructed of a light plastic transparent material such
as polyethylene which maintains its moistureproof character over a
reasonably long period of storage time so that the pads are
maintained moist for maximum electrical conductivity.
The tear lines 34 and 36 may be formed by the heat or pressure
welds defining the separate pockets or bags in which the pads are
contained, but it is preferred that separate tear lines be provided
to assure that the pockets are left open for immediate removal of
the pads, as shown in FIGS. 2 and 3. Thus in the embodiments shown
the tear lines 34 and 36 are positioned on opposite sides of weld
lines 40 and 42 which extend across the connecting portion 32 and
separate the pockets 12 and 14 so that the pads and solution
contained therein will not move from one pocket to another. The
tear lines 34 and 36 may be made before the package is assembled
and do not destroy the waterproof characteristic of the
package.
A modification of the tear lines for opening the pockets of the
package is shown in FIG. 4 wherein tear line 37 is curved in the
center downwardly beyond the edge of the electrode pad 18. Thus
when the connecting portion 32 is removed the upper edge 19 of the
electrode pad 18, and pad 16 on the opposite side, is exposed for
easy gripping and removal of the pad.
The invention therefore provides a simple and easily constructed
electrode pad and package combination which enables storage of
pre-soaked electrode pads in a convenient manner and quick removal
of the pads from the package under the emergency conditions
occurring at the time such pads are needed.
* * * * *