U.S. patent number 3,770,119 [Application Number 05/173,941] was granted by the patent office on 1973-11-06 for medical procedure tray.
This patent grant is currently assigned to Baxter Laboratories, Inc.. Invention is credited to James L. Cabernoch, Wayne M. Hultberg.
United States Patent |
3,770,119 |
Hultberg , et al. |
November 6, 1973 |
MEDICAL PROCEDURE TRAY
Abstract
A sterile, medical procedure tray is disclosed, comprising a
tray body having a raised rim about its periphery, and a sterile
drape attached to the tray body and folded together within the rim.
A gas-permeable, contamination-impermeable sheet is releasably
attached to the periphery of the rim to aseptically enclose the
drape and the tray body interior within the rim. Auxiliary trays
can be provided which hook to the tray body to provide additional
tray space.
Inventors: |
Hultberg; Wayne M. (Glenview,
IL), Cabernoch; James L. (Buffalo Grove, IL) |
Assignee: |
Baxter Laboratories, Inc.
(Morton Grove, IL)
|
Family
ID: |
22634147 |
Appl.
No.: |
05/173,941 |
Filed: |
August 23, 1971 |
Current U.S.
Class: |
206/439; 206/440;
206/558; 206/564 |
Current CPC
Class: |
A61B
50/30 (20160201) |
Current International
Class: |
A61B
19/02 (20060101); A61B 19/00 (20060101); A61b
019/02 (); B65d 001/34 () |
Field of
Search: |
;128/1R,2R,275,296,DIG.24 ;206/16S,46ST,47R,63.2R,63.5,72
;220/65 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Rothberg; Samuel B.
Assistant Examiner: Lipman; Steven E.
Claims
We claim:
1. A sterile medical procedure tray which comprises a tray body
having a raised rim about its periphery, a sterile drape attached
to said tray body within said rim, said drape being folded together
within said rim, and a gas-permeable, contamination-impermeable
sheet releasably attached to the periphery of said rim to
aseptically enclose said drape and the tray body interior within
said rim, and at least one auxiliary tray, positioned underneath
said gas-permeable, contamination-impermeable sheet within said
rim, said auxiliary tray defining a peripheral protrusion to form a
shoulder on one surface and an indentation on the other surface of
said tray, said indentation being proportioned to fit over said rim
in mating relationship to hook said trays together in position of
use.
2. The medical procedure tray of claim 1 having a tray bottom which
forms ridges for defining separate compartments for holding
instruments, medicaments, and the like, and in which said drape
overlies said tray bottom in contour-matching relationship, and is
attached thereto.
3. The medical procedure tray of claim 1 in which said sterile
drape has an aperture defined therein of smaller dimension than
said rim, the drape edges defining said aperture being affixed to
the inner portions of said rim.
4. A sterile medical procedure tray which comprises:
a tray body having a raised rim about its periphery,
a sterile drape attached to said tray body within said rim, said
drape being folded together within said rim,
an auxiliary tray resting on said drape, said auxiliary tray
defining a peripheral protrusion to form a shoulder on one surface
and an indentation on the other surface of said auxiliary tray,
said indentation being proportioned to fit over said rim in mating
relationship to hook said tray body and said auxiliary tray
together in position of use, and
a gas-permeable, contamination-impermeable sheet releasably
attached to the periphery of said rim to aseptically enclose said
drape, auxiliary tray, and the tray body interior within said
rim.
5. The medical procedure tray of claim 4 in which a plurality of
auxiliary trays are included within the space sealed by said rim
and contamination-impermeable sheet.
Description
BACKGROUND OF THE INVENTION
Medical procedure trays are sterile, prepackaged containers which
include most or all of the medical and surgical items necessary for
performing a simple medical or surgical process, such as a liver
biopsy, spinal anesthesia, or the like. The trays are very
convenient for the hospital or clinical user, since all of the
equipment is presterilized, and since it is sold as an "off the
shelf" item. Hence, the nurse does not have to take the trouble to
collect and sterilize all of the equipment necessary for the
operation. Instead, the tray is merely brought to the place where
the procedure is to be performed, and opened, so that the procedure
can take place at once with a very substantial saving of
preparation time for the nurse.
In the procedure trays which are presently available, a surgical
drape is provided which is a waterproof, sterile fabric for
spreading over the surgical table to provide a sterile field on
which to lay the instruments. With the presently available medical
procedure trays, the drape is wrapped around the tray containing
the other equipment for the procedure, and the wrapped tray is, in
turn, enclosed in an impermeable outer wrap. Thus the tray and
drape must be removed from the outer wrap, the drape unwrapped from
around the tray, and spread on the operating table. Then the tray
is laind on top of the drape. In such a procedure, a substantial
amount of handling of the tray and drape is required, and there is
the possibility of contaminating the surgical drape or tray by
accidentally brushing it against a nonsterile surface during the
unwrapping and preparation procedure.
A further problem with the prior art trays is that since the
equipment for each medical procedure is prepackaged in the tray,
there is insufficient opportunity for the individual doctor or
surgeon to exercise his professional discretion in the selection of
other equipment that he might wish to use during the procedure,
apart from the equipment provided in the tray.
The invention of this application provides improved solutions to
the above problems, in that the trays of this invention are more
conveniently opened with substantially less handling of the tray
and drape, and an optional, auxiliary tray means is provided to
permit the doctor or surgeon to add optional equipment of his
choice to the basic package of the equipment provided by the tray,
all in a sterile field. Additionally, the outer wrapping of
conventional trays is replaced with a much simpler closure sheet in
the tray of this invention.
DESCRIPTION OF THE INVENTION
In accordance with this invention, a sterile, medical procedure
tray is provided which comprises a tray body having a raised rim
about its periphery. A sterile drape is attached to the tray body
at positions within the rim, the drape being also folded together
within the rim prior to use. A gas-permeable,
contamination-impermeable sheet is releasably attached to the
periphery of the rim to aseptically enclose the drape and the tray
body interior therein.
If desired, one or more auxiliary trays are provided with the tray
of this invention, so that the doctor or surgeon has a sterile site
to place additional instruments and medicaments for the procedure.
These auxiliary trays define a peripheral protrusion to form a
shoulder on one surface, and a corresponding indentation on the
other surface of the auxiliary tray. The indentation is
proportioned to fit over the rim of the tray body in mating
relationship to hook the tray body and auxiliary trays together
when they are in their position of use.
For use, the contamination-impermeable sheet is torn away from the
rim of the tray body to expose the optional auxiliary trays and the
surgical drape. The auxiliary trays are then removed and hooked
into position as described below, and the sterile drape is unfolded
about the tray body and over the auxiliary trays, creating a
sterile field around the tray. Thus, the tray of this invention can
be simply set down on a nonsterile surface and easily opened with a
simple motion by removing the impermeable sheet. The drape is then
unfolded across the sterile surface to create the important sterile
field in a manner much simpler than that of the prior art.
Referring to the drawings,
FIG. 1 is a perspective view of an aseptically-sealed medical
procedure tray of this invention.
FIG. 2 is a perspective view of the same tray with the
contamination-impermeable sheet being torn away from the rim of the
tray body.
FIG. 3 is a view of the same tray with the impermeable sheet
removed, showing the folded drape enclosed within the rim of the
tray body.
FIG. 4 is a perspective view of the same tray with the surgical
drape completely unfolded to create a sterile field, and showing
the equipment and medicaments contained in said tray.
FIG. 5 is a vertical, fragmentary sectional view of the same tray
of this invention, showing the surgical drape in unfolded
condition.
FIG. 6 is a vertical sectional view of another embodiment of the
tray of this invention in closed configuration, the tray containing
two auxiliary trays.
FIG. 7 is a fragmentary, vertical sectional view similar to the
embodiment of FIG. 6, showing the position of use of the auxiliary
trays, but showing a different embodiment of the surgical drape in
unfolded configuration.
FIG. 8 is a perspective view of the same tray as shown in FIG. 7 in
open position of use.
Referring to FIGS. 1-5, FIG. 1 shows the closed tray of this
invention, having a tray body 10 with a raised rim 12, to the
periphery of which is attached a gas-permeable,
contamination-impermeable sheet 14 in a releasable manner, so that
it can be manually removed as shown in FIG. 2. An overlapping
section 16 of sheet 14 is provided for easy grasp of the sheet. The
gas-permeable, contamination-impermeable sheet is desirably made of
a spun-bonded, porous sheeting made of olefin fibers, typically
polyethylene, such as the material sold under the trademark TYVEK,
by E. I. du Pont de Nemours. It can be conventionally glued or
releasably heat sealed to the top of rim 12.
Surgical drape 18 is stored under sheet 14, as shown in FIG. 3, and
is accessible for unfolding to the position shown in FIG. 4 to
provide a sterile field after removal of sheet 14 from the top of
tray 10. After drape 18 has been unfolded, the various instruments
and medicaments 20 for the medical procedure are exposed to the
user. If desired, other separate fenestrated drapes to cover the
patient can also be included.
As shown in FIG. 5, the bottom of tray body 10 forms ridges 22 for
defining separate compartments 24 for holding the instruments,
medicaments, and the like. Drape 18 overlies the tray bottom in
contour-matching relationship, and is attached thereto. Suitably,
the drape 18 is attached to tray 10 by a thermo-forming or pressure
welding step, in which the tray simultaneously is molded from a
flat sheet of plastic to the desired three-dimensional
configuration. However, as shown in a later embodiment, the drape
18 can have an aperture in it of a size slightly less than rim 12,
so that the edges of the aperture can be glued or otherwise sealed
to the interior of rim 12. The operation of converting the tray
from the configuration of FIG. 1 to that of FIG. 4 requires only a
few seconds, and the medical or surgical procedure can proceed
immediately thereafter.
The gas-permeable, contamination-impermeable sheet 14 permits the
tray to be presterilized at the manufacturing site with ethylene
oxide gas or the like after assembly of the tray.
Referring to FIGS. 6 through 8, variants of the tray of FIGS. 1
through 5 are shown having two auxiliary trays 26, 28 for providing
extra tray space for the medical practitioner to add medicaments
and equipment to the procedure tray according to his discretion.
Each tray 26, 28 defines a peripheral protrusion to form a shoulder
30 on one surface and a corresponding indentation 32 on the other
surface of the tray. The indentation 32 is proportioned to fit over
rim 12 in mating relationship to hook the tray body 10 and each
auxiliary tray 26, 28 together in the position of use, as shown in
FIGS. 7 and 8. This tray also includes the gas-permeable,
contamination-impermeable sheet 14 for the same purpose as that
shown in FIGS. 1 and 2.
For use of the tray, after removal of sheet 14, auxiliary trays 26,
28 are removed and hooked onto rim 12 of tray 10. Thereafter, drape
18a is unfolded to overlie auxiliary trays 26, 28 in the position
as shown in FIG. 8. Drape 18a is shown to be pressed down in trays
26, 28 to follow the tray contours.
In the embodiment of FIG. 7, drape 18a has an aperture which is
slightly smaller than rim 12, so that the drape covers only inner
shoulder 36, but not the rest of the tray bottom. The drape 18a is
heat welded, solvent sealed, or otherwise attached to inner
shoulder 36. Otherwise, FIG. 7 shows a tray identical to that of
FIG. 6.
The tray of this invention can be used to set up a sterile,
surgical field, and instruments ready for use within the sterile
field, in a matter of seconds after the tray has been set down on a
surface. The auxiliary trays provide sterile spaces for storing
extra medicaments and instruments as desired by the doctor or
surgeon.
The above disclosure is offered for illustrative purposes only, and
is not intended to limit the invention, which is defined in the
claims below.
* * * * *