U.S. patent number 3,730,338 [Application Number 05/121,080] was granted by the patent office on 1973-05-01 for sterile shielded container.
This patent grant is currently assigned to The Kendall Company. Invention is credited to Sheldon R. Chesky.
United States Patent |
3,730,338 |
Chesky |
May 1, 1973 |
**Please see images for:
( Certificate of Correction ) ** |
STERILE SHIELDED CONTAINER
Abstract
A shield for a hollow sterile tray to retain sterile articles
therein, with the tray including, a top for access to the articles,
a bottom, and at least one side wall connecting the top and the
bottom. The shield includes a flexible sheet which covers at least
a portion of the tray top and one side wall, and the sheet is
sufficiently large to prevent contamination of the tray or articles
during grasping of the shield by a user's hands.
Inventors: |
Chesky; Sheldon R. (Rolling
Meadows, IL) |
Assignee: |
The Kendall Company (Boston,
MA)
|
Family
ID: |
22394391 |
Appl.
No.: |
05/121,080 |
Filed: |
March 4, 1971 |
Current U.S.
Class: |
206/459.5;
206/499; 206/557; 206/278; 206/570 |
Current CPC
Class: |
A61B
50/33 (20160201); A61B 42/40 (20160201); B65D
2577/205 (20130101) |
Current International
Class: |
A61B
19/02 (20060101); A61B 19/04 (20060101); A61B
19/00 (20060101); A61b 019/02 (); A61l
015/00 () |
Field of
Search: |
;206/46SG,46ST,46F,47R,56R,56AC,56AA,63.2R,DIG.29 ;229/87R |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Rothberg; Samuel B.
Assistant Examiner: Lipman; Steven E.
Claims
I claim:
1. A shielded container for preventing contamination to
substantially sterile articles retained in the container during
manipulation of the shielded container by a user's hand after
removal of the shielded container from a sterile wrap,
comprising:
a tray having a bottom wall the sides of which are bounded by at
least one sidewall extending upwardly from said bottom wall, and
terminating in a top edge defining an opening in said tray;
substantially sterile articles contained in said tray; and
a shield for said tray comprising a flexible sheet which is
resistive of bacterial penetration to protect said tray and
articles from contamination while grasping the shield by a non -
sterile hand, said sheet having a top panel covering at least a
portion of the top edge of said sidewall, and a side panel
connected to said top panel adjacent said top edge and extending
downwardly to the bottom wall of the tray over the exterior of said
sidewall, a bottom panel connected to said side panel adjacent the
juncture of the sidewall and the bottom wall and extending
laterally over at least a portion of the exterior of the bottom
wall under the tray, with said top and side panels having a
sufficient width relative to the one sidewall and said top panel
having a sufficient length extending from the top and side panel
connection for grasping the top and side panels and moving the tray
without contaminating said sterile articles, with the end regions
of the shield remote the top and side panel connection being
unsecured to each other, with said top and side panels contacting
the tray and being unbonded thereto, and with said shield being
slidably removable from the tray to expose the substantially
sterile articles for use without contamination thereof.
2. The shielded container of claim 1 wherein said bottom panel has
a pair of spaced side edges and an end edge connecting the side
edges, and said shield includes, a pair of side tabs in the bottom
panel defined by a fold spaced from and generally aligned with each
of the side edges, said tabs being directed generally toward the
top edge to engage the tray sidewall for releasably retaining the
sheet to the tray.
3. The shielded container of claim 1 wherein said top panel
substantially covers the opening of said tray and is recessed into
a cavity defined by the bottom wall and sidewall of the tray.
4. The shielded container of claim 1 wherein said tray has a
rectangular shape with two pairs of upstanding opposing sidewalls
extending from the bottom wall and terminating at the top edge with
said side panel being positioned to face one of said opposing
sidewalls, and in which said top and side panels extend
substantially the width of the tray relative to said one opposing
sidewall.
5. The shielded container of claim 1 wherein said sheet
substantially covers the the opening defined by the top edge of the
tray.
6. The shielded container of claim 1 including means for releasably
retaining a sterile glove in said sheet.
7. The shielded container of claim 1 wherein said top and side
panels are connected by a fold with said panels being grasped in
the region of the fold for moving the tray and removal of the
shield.
8. The shielded container of claim 7 including tab means adjacent
said grasping fold to facilitate removal of the shield from the
tray.
9. The shielded container of claim 8 wherein said tab means
comprises, a tuck secured in said sheet adjacent the grasping
fold.
10. The shielded container of claim 7 including a wallet for a
sterile glove comprising:
a first panel overlying said top panel and connected to the top
panel by a first fold remote from said grasping fold, with said
first panel extending from the first fold to adjacent the grasping
fold; and
a second panel overlying said first panel and connected to the
first panel by a second fold adjacent said grasping fold, said
second panel extending from the second fold past the first fold,
with the second and side panels being grasped for moving the tray,
said first and second panels being sufficiently wide to receive at
least a portion of the glove therebetween with one end of the glove
being positioned adjacent the second fold, whereby said first and
second panels may be grasped in the region of the second fold for
removal of the shield from the tray and for gripping said one glove
end without contamination thereof, and said first and second
grasped panels of the removed shield may be slightly released to
deposit the glove onto a sterile surface.
11. The shielded container of claim 10 including a third panel
underlying said top panel and connected to said second panel by a
third fold adjacent said first fold, with at least a portion of
said glove extending past said first and third folds and being
received intermediate said top and third panels.
12. The shielded container of claim 7 including indicia adjacent
said grasping fold specifying the location for grasping the
shield.
13. The shielded container of claim 7 wherein said tray includes an
outwardly directed flange adjacent the top edge of the tray, and
said grasping fold is positioned adjacent said flange, whereby the
shield may be grasped for engagement against the flange to
facilitate manipulation of the tray.
Description
BACKGROUND OF THE INVENTION
This invention relates to a shield for a hollow sterile tray to
retain sterile articles.
It is well known that many medicinal articles utilized for
treatment of a patient must be sterilized to prevent infection.
Since it is frequently inconvenient or impossible to sterilize such
articles at the time of treatment, it has become common practice to
sterilize them at some time prior to their actual use. Accordingly,
the pre-sterilized articles must often be maintained in a sterile
condition for considerable periods of time, and to prevent
contamination they may be packaged in sterile containers or trays
which may be covered by a protective wrap and which are opened
immediately prior to use.
Once the wrap is removed to expose the trays, a considerable amount
of care must be exercised in manipulating the trays without
contaminating the tray contents. In the past this has been both
inconvenient and difficult. For example, sterile gloves have been
packaged within the protective wrap, and after placement on the
hands of a user, they are utilized to move and open the trays.
However, this procedure is deficient since the glove fingers may
become contaminated while the gloves are being placed on the hands,
or the sterile articles of the trays may be contaminated while
removing the gloves. Also, sterile instruments, such as forceps or
clamps, have been packaged within the wrap, but it is difficult to
manipulate the trays with such instruments, and not infrequently
the tray contents have been spilled due to the use of such
devices.
SUMMARY OF THE INVENTION
The principle feature of the present invention is the provision of
a shield to protect a sterile tray and contents from contamination
during manipulation of the trays by the hands of a user and during
opening of the trays for access to the tray contents.
The shield of the present invention includes a flexible sheet which
covers at least a portion of a top of the tray and at least a
portion of a sidewall of the tray which connects the tray top and
bottom. The sheet is sufficiently large to prevent contamination of
the tray during grasping of the shield by the user's hands.
A feature of the present invention is that the tray opens through
the top to a chamber for retaining the contents therein, and the
sheet includes a top panel which substantially closes the tray
chamber.
Another feature of the invention is that the sheet includes a
bottom panel which covers at least a portion of the tray bottom and
which releasably retains the sheet to the tray.
A further feature of the invention is that the sheet is resistive
of bacterial penetration to protect the sterile tray and contents
from contamination while grasping the shield by a non-sterile
hand.
Yet another feature of the invention is the provision of means for
releasably retaining a sterile glove in the shield.
The sheet has a side panel covering at least a portion of the tray
sidewall and connected to the bottom panel by a fold, and the side
panel is connected to the top panel by a grasping fold which is
positioned adjacent the tray top.
A feature of the invention is that the sheet includes indicia
adjacent the grasping fold to specify the location for grasping the
shield.
Another feature of the present invention is the provision of tab
means adjacent the grasping fold to facilitate removal of the
shield from the tray.
The tray has an outwardly directed flange adjacent the top of the
tray, and the grasping fold of the sheet is positioned adjacent the
tray flange.
A further feature of the invention is that the shield may be
grasped for engagement against the tray flange to facilitate
manipulation of the tray.
The trays may be stackable with the bottom portion of an upper tray
being received in the upper part of the chamber of a lower tray,
and a plurality of the shielded trays are nested to form a stack of
trays.
Still another feature of the invention is that the tray shields of
the nested trays are grasped to unstack the trays without
contaminating the tray contents.
Further features will become more fully apparent in the following
description of the embodiment of this invention and from the
appended claims.
DESCRIPTION OF THE DRAWINGS
In the drawings:
FIG. 1 is a perspective view of the tray shield of the present
invention as positioned on a tray;
FIG. 2 is a fragmentary perspective view of the shield and tray
showing a side tab formed by folding the shield;
FIG. 3 is a cross sectional view of the shield and tray taken
substantially as indicated along the line 3--3 of FIG. 1;
FIG. 4 is a plan view of the tray shield prior to folding for
covering a tray;
FIG. 5 is a perspective view of a sterile package having a
plurality of stacked trays and tray shields;
FIG. 6 is a perspective view showing a lower tray and shield of the
sterile package of FIG. 5;
FIG. 7 is a perspective view of a tray shield having a tuck to
facilitate removal of the shield from the trays;
FIG. 8 is a side elevational section view of a shield having a
wallet for retaining a sterile glove as positioned on a tray;
FIG. 9 is a side elevational view of the shield wallet of FIG. 8
partly removed from the tray; and
FIG. 10 is a perspective view of the shield wallet of FIG. 8, with
the wallet being slightly released to deposit the glove on a
sterile surface.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to FIGS. 1, 2, and 3, a sterile tray shield,
generally designated 11, is shown for covering a hollow sterile
tray or container, generally designated 12, to protect the tray 12
and sterile articles 14 retained in the tray from
contamination.
In a preferred form, the tray 12 has a top 16, a bottom 18, and a
continuous side wall 20 connecting the tray top and bottom 16 and
18, with the bottom 18 and sidewall 20 partially enclosing a
chamber or cavity 22 in the tray for retention of the sterile
articles 14. The tray 12 may be generally rectangular with the
sidewall 20 including two pairs of upstanding opposing sidewalls
connected to the bottom wall 18. The sidewalls terminate at the top
of the tray in edge 16 from which a flange 23 extends around the
periphery of the tray. Access to the articles 14 is obtained
through the top 16, and preferably the tray 12 has an open top for
ready access to the contents. The perimeter of the sidewall 20
adjacent the bottom of the tray may be less than the perimeter of
the sidewall adjacent the top of the tray to permit stacking of the
trays, as will be described in greater detail below.
The shield 11 has a top panel 24 for covering at least a portion of
the tray top 16, and preferably closes the open top of the tray 12.
The shield 11 has a side panel 26 connected to the top panel 24 and
which faces and covers a substantial portion of the connecting tray
sidewall 20 at a side 28. The shield 11 also has a bottom panel 30
connected to the side panel 26 and which engages and covers a
portion of the tray bottom 18.
As shown in FIG. 4, the shield 11 may be conveniently formed from a
flexible rectangular sheet which has a pair of side edges 29a and
29b and a pair of end edges 31a and 31b which connect the side
edges. First, a lateral fold 34 may be formed in the sheet which
extends between the sides 29a and 29b and which is generally
aligned with one end edge 31a, and the fold 34 defines the bottom
panel or section 30 which extends between the fold 34 and the one
end edge 31a. Second, a lateral fold 32 is formed in the sheet
which also extends between the side edges 29a and 29b, and which is
generally aligned with the other end edge 31b. The folds 32 and 34
define the side panel or section 26 which extends between the
folds, and the fold 32 defines the top panel or section 24 which
extends between the fold 32 and the other end edge 31b. After
folding, the sheet is releasably attached to the tray.
Such materials as paper, plastic, or cloth may be used for the
flexible sheet, and the selection of a particular material is in
part determined by its resistance to bacterial penetration.
Preferably, the sheet provides a penetration barrier for at least
30 seconds, employing a bacterial transfer technique on moist agar
culture media. Additionally, it is contemplated that the shield may
be preformed from a rigid material, and a metal could be used for
such a shield.
The shield 11 is grasped in the region of the fold line 32 which is
positioned adjacent the outer edge of the flange 23 and indicia 36.
As illustrated in FIGS. 1 and 3, the indicia 36 designates this
region by the word GRASP to specify the preferred location for
gripping the shield. To facilitate manipulation of the tray, the
grasping fold 32 is positioned adjacent the tray flange 23, and the
grasped shield engages the sides or an inner corner 35 of the
flange 23 for ease of handling.
In order to prevent contamination of the tray and contents, the top
and side panels 24 and 26 of the sheet extend substantially the
width of the tray relative to the top edge 16 at one side 28, and
the top panel 24 extends for a sufficient length from the outer
edge of flange 23 or connecting fold 32 to grasp the shield with
the hands without touching the tray. Thus, the shield may be
handled by non-sterile hands, such as an exposed hand or a hand
wearing a non-sterile glove, without contaminating the tray or
articles. Of course, the shield may be grasped by a hand wearing a
sterile glove, if desired.
Since the sidewall 20 is tapered toward the tray bottom 18, the
bottom panel 30 extends laterally beyond the sides of the tray. As
illustrated in FIG. 2, the extending side portions of the shield
may be folded upwardly toward the tray top 16 along the lines 40 on
both sides of the tray and spaced from the edges 29a and 29b, with
these side portions defining tabs 42 which engage the sides of the
tray. Accordingly, the tabs 42 and the bottom panel 30, which
engages the tray bottom 18, serve as means for releasably retaining
or attaching the shield 11 to the tray.
Referring to FIGS. 1 and 3, to remove the shield from the tray, the
top and side panels 24 and 26 are pinched by the user's fingers
adjacent the fold 32, and the shield 11 is pulled outwardly, thus
simultaneously removing the shield and exposing the articles 14 in
the open tray for use. As illustrated in FIG. 7, the shield may
include tab means, generally designated 44, to facilitate removal
of the shield from the tray. The tab means 44 may be formed by
folding a tuck 46 in the shield, preferably adjacent the fold line
32, and the tuck 46 is secured by a pair of clips 48, by tape,
glue, or other suitable means. Although the tuck 46 is shown as
folded in the side panel 26, it is also contemplated that the tuck
may be positioned on the top panel 24 adjacent the fold 32, with
the direction of the tuck fold being reversed.
As illustrated in FIG. 5, a plurality of shielded open-topped trays
12 are nested to form a stack of trays, as generally designated by
the numeral 50. As a specific example, the trays 12 may contain
sterile articles for scrubbing the skin prior to an operation. The
articles 14, the trays 12, and the shields 11 in the tray stack are
sterilized and may be covered with a sterile wrap (not shown).
Immediately prior to use, the sterile wrap is unfolded to expose
the nested trays 50, the shields 11 are grasped as indicated by the
indicia 36 to unstack the trays 12, and the shields are then
removed to expose the contents for use without contamination.
If desired, the shields 11 may be folded to define the tabs 42, in
which case the tabs 42 are positioned intermediate the outer
surface of an upper tray sidewall 20 and the inner surface of a
lower tray sidewall of the trays 50, and the tabs 42 are
accordingly frictionally engaged between the sidewalls to aid in
retaining the bottom panels 30 in position. As illustrated in FIG.
6, the top panels 24 of the lower trays are partially retracted
into the tray cavity in order that the bottom portions of the upper
trays may be received within the open tray tops for stacking. If
the lower trays 12 are not completely filled and the sidewall 20 is
tapered, the side portions 52 of the retracted top panels 24 may be
folded upwardly toward the tray top 16. Accordingly, when the trays
are stacked the panel side portions 52 are frictionally engaged
between the inner side wall surface of a lower tray and the
exterior surfaces of the sides of a shielded upper tray nested
therein, thereby retaining the top panels 24 in position. Thus, the
engaged tabs 42 and panel side portions 52 additionally insure that
the shields 11 will remain in position until the package is
unstacked.
In one embodiment of the stack of trays 50, a sterile pair of
forceps 53 is positioned above a top panel 24 in a lower tray, with
the jaws of the forceps being positioned remote the grasping fold
32 to prevent contaminating of the jaws by the hands while grasping
the shield. In the nested trays the forceps are located
intermediate the panel 24 and the bottom of a shielded upper tray
which is received in the lower tray top. After the trays are
unstacked, the forceps 53 are exposed to the user, and the sterile
forceps are utilized to remove the sterile contents from the
trays.
As illustrated in FIG. 5, the trays may have a variable height
while utilizing the same size of tray shields. In the package 50,
the lowest tray has a greater height than the two upper trays.
In one embodiment of the invention, as shown in FIG. 8, the tray
shield 11 has a wallet, generally designated 60, for retaining a
sterile glove or pair of sterile gloves 62. The wallet 60 has a
first panel 64 which overlies the top panel 24, and which is
connected to the top panel by a first fold 66 remote from the
grasping fold 32. The first panel 64 extends from the first fold 66
to adjacent the grasping fold 32 and is connected by a second fold
70 to a second panel 68 which overlies the first panel 64. The
second fold 70 is preferably positioned adjacent the grasping fold
32 in order that the second and side panels 68 and 26 may be
simultaneously grasped in the region of the folds 70 and 32 for
moving the tray. The second panel 68 extends from the second fold
70 past the first fold 66 and is connected to a third panel 72 by a
third fold 74 adjacent the first fold 66. The third panel 72
underlies the top panel 24 and at least partially closes the top of
the open tray 12.
In the wallet 60, the cuffed or wrist end 76 of the glove 62 is
positioned intermediate the first and second panels 64 and 68
adjacent the second fold 70, and the glove 62 extends past the
first and third folds 66 and 74, with a finger portion of the glove
78 being positioned intermediate the top and third panels 24 and
72. However, in one embodiment of the invention, the third panel 72
may be omitted and the extending glove portion 78 may be received
in the cavity of the tray below the top panel 24.
As illustrated in FIG. 9, the shield 11 is removed from the tray 12
by grasping the first and second panels 64 and 68 in the region of
the second fold 70, and the glove end 76 is gripped through the
first and second panels. As shown in FIG. 10, after removal of the
shield 11 from the tray 12, the first and second panels 64 and 68
are slightly released to drop the sterile glove 62 onto a sterile
surface 80, and the cuff 76 of the sterile glove 62 is exposed for
insertion of the hand without contamination of the sterile glove
finger portions 78. Thus, the wallet 60 serves as means for
releasably retaining a sterile glove in the sheet or shield 11.
The foregoing detailed description is given for clearness of
understanding only, and no unnecessary limitations should be
understood therefrom, as modifications will be obvious to those
skilled in the art.
* * * * *