Note: Descriptions are shown in the official language in which they were submitted.
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S P E C I F I C A T I O N
FIELD
This invention relates to the field of surgical drapes,
more particularly to self-adhering disposable drapes that are
used in connection with surgical procedures or other types of
;~ medical treatment.
BACKGROUND
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Surgical and other medical treatment procedures require
septic preparation (prepping) of portions of the body. The
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i prepped area is isolated from non-involved areas by drapes.
` ~ 10 Heretofore, drapes were secured to each other, to the patient's `
skin, to the patient's surgical garment, to the surgical table, -
or other special supports. The securing was ordinarily done by
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`~ metal clips.
The drapes were cloth toweling, requiring steriliza- ;
tion before and between usage, as did the clips. This procedure ~-
- has become increasingly expensive as labor, handling and material
costs have risen. Cloth draping, being of toweling material
; which frays with age and wear, leads to potential lint contami-
nation of the surgical area or the incision. Further, the
toweling did no~ present a fixed border, as it was not adherable
along its edge. As a result, septic areas could be exposed, or ~ ;
septic garments could protrude therefrom, and surgical tools
`~ misplaced or hidden thereunder. ; ~
'`" Disposable, mass-produced paper fibrous drapes have ` -
~`~ recently been introduced to reduce the cost factor. These
drapes may be presterilized, or sterilized just prior to use.
Further, some such drapes are provided with adhesive portions
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for adhering to the patient. ~n example is U.S. patent Madden
3,625,205, issued December 7, 1971, which employs a double-fold
pocket arrangement Eor opening and has an adhesive along half
its width. When the drape is opened, the adherent strip is
facing the doctor and must be reversed to face the area to which ;
the drape is to be secured. This means the drape must be trans-
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ferred to a second person, or the arms must be crossed in an
awkward position. Another alternative is that the drape must
be laid down and picked up again in a reversed manner. Further,
a short fold is presented on the outPr surface, and again instru-
ments can be misplaced thereunder. The use of adhesive strip
'` along only a limited portion of the drape edge also means that
loose ends must be secured by clips or the like.
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The Madden construction is such that the release
paper is also secured permanently to a portion of the drape.
In order for the release paper on one flap to match the ~ ~
adhesive on the central area, precise folding of the drape dur- - -
ing manufacture must be done. Further, mistaken attempts to
remove the release paper on the assumption there is additional
adhesive area to be revealed thereunder results in tearing the
drape material, producing a useless drape, or one that can con-
tribute torn pleces or llne as prep slte contaminants.
There is therefore a need for an improved surgical
~ drape that is self-adhering, yet which is folded in a manner
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that upon unolding automatically reveals the adhesive areas
in an orientation that permits direct placement of the drape
without loss of sterility.
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T H E I N V E N T I O N
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- 5 OBJECTS
It is an object of this invention to provide an
,t . improved disposable surgical drape that is self-adhering ;
and simple to apply to the desired area during draping
i without having to reverse the drape. ~ `~
~-: 10 It is another object of this invention to provide
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. an improved woven OT non-woven type surgîcal drape that is
prefolded into an easily storable packet.
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~E It is another object to pTovide a cheap, disposable
: non-woven fibrous or non-fibrous type drape for surgical -
or other medical procedures that is self-opening, and has ' ~;
an adherent material presented în the immediate use position.
It is another object to provide a seIf-adherent
~t~; surgi~cal drape of the non-woven type that is prefolded to
preserve surgical integrity of at least one side, and in
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which the adher~nt portion is presented in a ready-to-use
". pos~ition automatically upon opening.
It~is another object to provide a self-adherent
` t suTgical drape that is easily sterilizable and disposable
after use. ~ - ` ` `~
25 Still other objects will be evident from the ~ `;description which ollows. ~
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DRA~INGS
The description herein will have reference to the
drawings in which:
FIGURE 1 is a perspective view of the sel-adherent
surgical drape of this invention in the opened position
with the adherent portion presented to the patient or use;
1 FIGURE 2 shows a top view of one side of one
;. embodiment of the drape of this invention showing the fold
. lines, adherent strip and release strip;
: 10 ~IGURE 3 shows the drape of FIGURE 2 in a partially
:; folded condition; . . . ~; :
;: FIGURE 4 shows the drape of FIGURE 3 with the .: : .
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.. drape further folded, - .: ~
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PIGURE 5 shows the dTape of FIGURES 1-4 in the ~ -.
completel~ folded condition just prior to opening;
PIGURE 6 shows the drape of EIGURE 5 partially.
:: opened;
. FIGURE 7 shows the drape of FIGURE 5 half opened, ~:
prior to the stage shown in FIGURE 1:
FIGURE 8 illustrates a second embodiment of the :.:
`` : drape of this invention in the folded condition, with a~
- - reverse fold of the bottom portion of the drape to assist
:`~ in protecting the sterile integrity of the patient side of ;~
`-~ the drape; and .
2S FIGURE 9 shows the second embodiment drape of
~ ~ FIGURE 9 in the partly folded condition to better illustrate
:~ . the reverse fold.
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SUM~RY lOS4008
The drape of this invention comprises one or more
sheets having a patient side and a working side, with one or
more adhesive areas or strips on the side facing the patient
in use. The adhesive areas are covered with protective
strips of peelable material, such as plastic, plasticized or
waxy paper and the like. The strips have tab-like extensions
permitting grasping by the doctor, technician or scrub
nurse for automatlc opening of the drape while simultaneously
peeling of the protective strip and revealing the adhesive
areas or strip~s) in the ready-to-use position, i.e., facing
the patient. By this construction, the drape may be ;
immediately secured in place without transferring to a
` second person, crossing arms, or laying the drape down,
repositioning arms, and picking the drape up again.
.
The drape shown herein is a simple surgical drape,
and is by way of illustration and not by way o limitation.
Accordingly, it should be understood that the principles of
this invention are applicable to other kinds of drapes, ~-
~` 20 fenestrated drapes, and ~he like. Likewise, the drape
`~ material may be woven, non-woven, fibrous, non-fibrous ~such
as open or closed cell foam), plastic~ cellulosic, laminated
' or homogenous, natural or synthetic~ and the like. `
DETAILED ~)ESCRIPTION
~ 25 Figure 1 shows drape 1 in the completely unfolded
'""t condition about to be placed on prepped area 2 of patient 3
~ to isola*e an area of surgical or medical interest. Drape 1
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comprises a sheet 4 having a working side 5 and a side 6
facing the patient 3 on which the adhesive 7 is placed.
Optionally, the drape may have a flap 8 which results in a
doubling of the drape thickness in the area of work surrounding
S the prepped area. This permits more wear and stress resistance,
as well as greater fluids absorbency at the region of need.
; As shown, the drape is held in the hands 9, 10 by release tape
` ~abs 11, 12. In this manner the drape can be precisely
positioned without requiring touching the sterile patient
side 6. Upon initial positioning, the balance 13, 14 of the
~l release tapes are pulled off and the drape secured by pressing
i along the upper margin 15 on the working side.
Figure 2 shows the drape of Figure 1 in an unfolded
condition. The drape sheet 4 has top edge 16, bottom edge
~` 15 17, and side edge~ 18 and 19. Generally parallel to the top
-` and~or bottom edges 16, 17 is a lateral fold line 20 that
defines a working surface S and a flap 8. Underside 6 faces
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the patient. The flap surface 8 shown faces the patient in ~ `~
this embodiment in the drape use position, but it may in
`';? 20 the alteTnative be folded back on face 5 with the adhesive
, portion and release tapes placed on side 6. As shown in this .
?~"'' embodiment, adhesive portion 7 comprises a continuous or ~
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intermittant bank extending the full width of the drape.
' The adhesive portion is covered by release tapes 13, 14
the inner portions of which abut or overlap slightly at
` juncture 21 and termina*e in tabs 11, 12. The drape also
has a central vertical fold line 22, a left side vertical
fold line 23, a right side vertical fold line 24, and a `~
~ `~ second lateral fold line 25 disposed in the major working
?~; ` 30 surface portion 5. `
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Figure 3 illus~rates a partly folded drape of the
e~bodiment of Figuresl and 2. Minor portion (flap) 8 has
been folded under along fold line 20. Then a left portion 26
defined between vertical fold line 23 and side edge 19 is
folded back o~er the working face 5. A portion of the release
tape is visible along the upper margin 15. Right side portion
; 27, defined between edge 18 and old line 24, is shown being
folded back over the sterile working surface 5. Edges 18
and 19 may substantially meet at centerline 22, may overlap,
or be spaced laterally from centerline 22 as shown. ~
Figure 4 shows the next stage of folding the drape. ~ -
A bottom portion 28, defined between edge 17 and second
:~ lateral fold line 25, is folded up over the side portions
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26, 27. The bottom edge 17 may meet~ overlap, or be spaced
down from ~old llne 20, as desired.
Figure 5 shows the final fold of the drape of
Figure 4 along centerline 22. This is the preferred size and
~ orientation of the drape as received by the doctor, scrub ;~
;~ nurse, or technician from the presterilized package. The ~ ~;
centerline edge 22 with exposed tabs ll, 12 faces the patient.
- Following in sequence Figures 5, 6, 7 and 1 show .
; the opening of the drape in use. With the folded drape of
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~ Figure 5 oriented with the tabs toward the a~ea of use-~pà*ient), ;~
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the tabs 11, 12 are grasped by the hands 9, 10 (~igure 6~. ~
.: 25 The bottom pOTtion 28 unfolds along fold line 25, and the
side flaps 26, 27 begin to open. As the tabs 11, 12 are
pulled, $he releàse tapes 13, 14 pull away from adhesive area
7 and simultaneously open the drape. This is best shown in
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- Figure 7. In some instances the ex~osed surgical area
should have a curved, irregular or arcuate border. With
- the drape partly opened as in Figure 7, it may be positioned
on the patient to form such a b~rder.
Continued pulling of the tabs completes opening
of the drape as shown best in Figure 1, and it may be h01d ~ ,
and positioned on the patient by the release tapes. The
tapes are then pulled free from the end areas adjacent edges
18, 19, and the margin 15 pressed down to firmly adhere
the drape in the position of use. The tapes are discarded.
Optionally, the veTy ends of the tapes near edges 18, 19
may be sealed ~o the drape, remaining out of the way under
fold 8.
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Figures 8 and 9 show a second embodiment of the
,` 15 drape of this invention in which bottom portion 28 is folded
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,~ over patient side 6 and, optionally, at least a portion of
~i the flap 8. Starting from Figure 3, after the side portions
- 26, 27 are closed over the working side 5, the bottom portion
28 is folded under along fold ~ine 25 over side 6 rather than
over the side folds 26~ 27 (see ~ig. 9). The result is ;
~` the completely folded pack of Figure 8, which opens analogously .
to Figures 6, 7 and 1. `~
The adhesive area may be placed on the major portion
5 o~ the drape rather than on the minor pOTtiOn (flap) 8,
by disposing it below fold line 20. The drape is then folded
analogously to that shown in Figures l-9, e.g., by reversal ;
i -of fold 22. Likewise, the portion 8 may be enlarged or
~-` reduced in size, e.g., reduced to the width of adhesive area
~`~ 7 and substantially covered with adhesive and the release
~; 30 tapes.
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lt should be understood that various modifications :~
within the scope of this invention can be made by one of
ordinary sXill in the art without departing from the spirit
thereof. I therefore wish my invention to be defined by
the scope of the appended claims as broadly as the prior
art will permit~ and in view of this specification if need
be~
I claim: . :
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