U.S. patent number 3,589,365 [Application Number 04/853,875] was granted by the patent office on 1971-06-29 for underbuttocks drape.
This patent grant is currently assigned to Parke, Davis & Company. Invention is credited to Virginia M. Sejman.
United States Patent |
3,589,365 |
Sejman |
June 29, 1971 |
UNDERBUTTOCKS DRAPE
Abstract
An underbuttocks drape is provided having a main panel laminated
with or adhered to an overlying fluid-impervious drain panel on one
surface and a fluid-impervious slide panel on the reverse surface.
The slide panel extends from the back surface around the top edge
or leading edge of the main panel and reinforces the leading edge
adjacent a hand-receiving cuff so that the assembled drape can be
manipulated and slid under the patient supported on an operating
table. The slide panel and drain panel serve to stabilize and
reinforce the main panel as the drape is being placed into
position. The drain panel is adapted to be extended to and hung
over the edge of the table into a fluid-receiving container.
Inventors: |
Sejman; Virginia M. (Greenwood,
SC) |
Assignee: |
Parke, Davis & Company
(Detroit, MI)
|
Family
ID: |
25317124 |
Appl.
No.: |
04/853,875 |
Filed: |
August 28, 1969 |
Current U.S.
Class: |
604/357;
128/849 |
Current CPC
Class: |
A61B
46/30 (20160201) |
Current International
Class: |
A61B
19/00 (20060101); A61B 19/08 (20060101); A61b
019/00 () |
Field of
Search: |
;128/132,275,292 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Rosenbaum; Charles F.
Claims
I claim:
1. A surgical drape comprising in combination a main panel having
front and back surfaces, slide panel means, and drain panel
means,
the main panel comprising a fluid-repellent fibrous sheet having a
hand-receiving cuff at one end and being adapted to be draped on
its back surface part way over a table top with the opposite end
extending beyond the table edge downwardly for runoff of fluids
released over the top surface,
the slide panel means comprising a fluid-impervious organic film
overlying the back surface of the main panel on at least the
central portion and cuff end and also extending to the front
surface around the cuff edge and having a lapel overlying the front
surface of the cuff,
the drain panel means comprising a fluid-impervious organic film
overlapping the slide panel and overlying the front surface of the
main panel from the cuff towards the opposite end of the central
portion of the main panel,
the slide panel and drain panel means being mutually joined to the
main panel on lines coextensive with the edges of the panel means
whereby the drape is fluid impervious and tear resistant within the
area define by the cuff edge and said joining lines.
2. A surgical drape according to claim 1 having fold lines for
folding the ends and sides of the drape into compact form, at least
some of said fold lines lying within the area defined by the cuff
edge and the said joining lines.
3. A surgical drape according to claim 2 wherein side fold lines
and side joining lines coincide.
4. A surgical drape according to claim 1 wherein the cuff includes
a contact zone uncovered by the slide panel for positioning under a
patient.
5. A surgical drape according to claim 1 wherein the drain panel
has a matte finish minimizing glare.
6. A surgical drape according to claim 1 wherein the panels are
adhesively joined.
Description
SUMMARY AND DETAILED DESCRIPTION
The invention relates to improved surgical drapes for obstetrical
purposes, lithotomies and similar operations. More particularly,
the invention relates to disposable surgical drapes of an improved
type adapted to facilitate placement under the patient on the
operating table and to minimize drainage problems and cleanup.
Prior to the present invention, disposable surgical drapes have
been provided having a fluid-repellent, nonwoven fibrous main
panel, in some cases laminated with a reinforcing plastic film
panel. These prior art drapes, however, have been subject to
structural failures during manipulation and positioning, or have
failed to provide adequate drainage, etc.
The present invention, therefore, has the object of providing an
improved type of surgical drape for the operating table,
obstetrical purposes and the like which can be packaged in compact,
folded form and can be opened, unfolded and placed into operating
position aseptically, i.e. without contaminating critical
sites.
Another object of the invention is to provide an article of the
kind described which is extensively reinforced structurally to
minimize tearing, strike-through, etc.
A further object of the invention is to provide an underbuttocks
drape which can be positioned on the operating table in a manner
facilitating complete drainage from the operating site with minimum
hindrance to the physician and nurses, simplifying cleanup,
etc.
These and other objects, advantages and purposes of the invention
will be seen from the following description and the accompanying
drawing in which:
FIG. 1 is a plan view of a preferred surgical drape of the
invention in unfolded form;
FIG. 2 is a cross section of a surgical drape taken on line 2-2 of
FIG. 1;
FIG. 3 is a view of the reverse side of the drape shown in FIG. 1;
and
FIG. 4 is a perspective view of a surgical drape of the invention
being positioned on the operating table.
Referring to FIG. 1, an obstetrical or lithotomy drape 10 is shown
having a top edge 10a, side edges 10b, a trailing edge 10c and
slanted edges 10d. In another design, the edges 10d can instead be
straight continuations of the side edges 10b. The drape includes a
main panel 11 having a cuff 12 separated into right and left cuff
portions 13a and 13b, sealed along seal lines 22. Affixed to the
rear side of the main panel 11 on seal lines 16 is a
fluid-impervious slide panel 14 extending to the top edge 10a and
brought around to the front of the panel in the form of a lapel 14a
having a top edge 14c on one margin and a leading edge 14b
coinciding with the top edge 10a of the main panel 11. The slide
panel 14 has a trailing edge 14d on the rear side and is affixed to
the front of the main panel 11 by suitable means along seal lines
16.
Also affixed to the face of the main panel is a fluid-impervious
drain panel 15 having a leading edge 15a, sides 15b and a trailing
edge 15c. The drain panel 15 and main panel 11 are sealed together
along seal lines 16. The arrangement is such that the slide panel
14 overlaps the drain panel 15. In other words, the leading edge
15a of the drain panel lies above the trailing edge 15c of the
slide panel 14. The two panels are joined together with the main
panel by the seal lines 16 along the side edges so that the panels
in this fashion constitute a unitary structure which is resistant
to tearing under the conditions usually encountered during surgical
operations. In other words, the combination of the main panel
bonded together with the slide panel and drain panel by the seal
lines provides a tear-resistant unit which can be manually directed
or advanced towards the patient in the direction shown by the arrow
of FIG. 1 without tearing or rupturing the main panel.
To use the preferred form of the drape as described, the same is
unfolded from a compact form indicated by the fold lines 17 to the
open form shown in FIG. 1. The right and left hands are then
inserted in the right and left cuffs 13a and 13b in the position
shown in FIG. 4 and the drape positioned on the table with the
trailing edge of the drain panel hanging down from the edge of the
operating table. The leading edge 14b is then brought forward
towards the patient and advanced or slid firmly under the patient
to the point where the patient is seated on the contact zone 21. In
this zone, being part of the cuff 12, the surface advantageously
has a soft finish which affords greater comfort as opposed to the
generally harder finished panels 14 and 15. On the other hand,
however, the reverse side of the drape which bears the downward
force of the advancing movement has, according to the invention, a
smooth slidable surface which by comparison involves a much lower
frictional restraint to sliding than the surface of the main panel,
particularly in the presence of moisture. In advancing the leading
edge, the fingers contact the inner surfaces of the right and left
cuffs and are prevented from breaking through the main panel 11 in
these portions by virtue of the strengthening effect of the
surrounding plies of the slide panel particularly at leading edge
14b, which plies are cooperatively and unitarily bonded by seal
lines 16 to the main panel 11 and drain panel 15. The assembly of
plies thus has relatively high tear strength both wet and dry in
both longitudinal and transverse directions. The applied force at
the leading edge 14b therefore advantageously causes the entire
slide panel, as well as the main panel and the fixed drain panel
15, to advance uniformly in a common movement while retaining their
same dimensional relationship and without structural failure,
tearing, distortion or disarray.
The panels 11 and 15 are next brought to the edge of the table 20
as in FIG. 4 and the trailing edge 15c of the drain panel and the
apron 18 are arranged downward from the table edge into a suitable
receiver 19, for the purpose of collecting any fluids flowing over
the surface of the drain panel in the direction of the arrows, over
the edge of the table. It is a feature of the invention that the
particular arrangement of the overlying plastic film panel
facilitates movement of liquids released during the operation along
the lines shown in FIG. 4 for drainage, as described, into the
receiver. Advantageously, the liquids tend to follow the direction
of their removal rather than to move laterally to the side edges of
the drape. The latter features is particularly important in that
the physician and attending nurses are not required continually to
clean up the operating site during the operation. During the
procedure further adjustment of the drape is ordinarily
unnecessary. Afterward, the drape is discarded.
The materials used for the surgical drape are widely available and
can be varied as desired. The main panel 11 can be made of any
suitable material generally used for disposable surgical drapes.
Ordinarily, it will be a cellulosic material treated for fluid
repellency such as a scrim-reinforced, nonwoven fabric. The slide
panel and drain panel are fluid-impervious, organic plastic film
materials, such as polypropylene or ethylene-propylene copolymer.
Preferably the plastic film is treated or formulated to have
antistatic properties. An example of a satisfactory material is a
plastic film having a thickness of about 0.5 mils made of
polypropylene and suitable for sterilization. The panel materials
can be fastened together with suitably applied adhesive such as a
polyvinyl acetate-acrylate copolymer adhesive or, if desired, the
organic films can be thermoplastically sealed to the main panel.
Preferably the color and finish of the main panel should be chosen
to minimize glare. The plastic film panels suitably can be
transparent or colored as desired and preferably should have a
matte finish or other finish which minimizes glare.
While embodiments of the invention in surgical drapes have been
described with considerable detail in the foregoing description, it
will be realized that wide variation can be made in such detail
without departing from the spirit of the invention as set forth in
the following claims.
* * * * *