U.S. patent number 3,782,377 [Application Number 05/177,951] was granted by the patent office on 1974-01-01 for sterile plastic shield.
This patent grant is currently assigned to Illinois Tool Works Inc.. Invention is credited to Frank J. Rychlik.
United States Patent |
3,782,377 |
Rychlik |
January 1, 1974 |
STERILE PLASTIC SHIELD
Abstract
The present invention relates generally to improvements in
protective shields for application to a body surface area in which
an infusion needle has been inserted. An embodiment of the
invention disclosed herein includes a relatively rigid transparent
cup-shaped cover or shield member and a laterally flexible
circumferential flange radiating from the open margin of the cover
member. Surrounding the interior wall of the cover member is a
disinfectant impregnated wick-like member. The flange is adapted
for adhesive attachment to the above-mentioned surface area.
Inventors: |
Rychlik; Frank J. (Chicago,
IL) |
Assignee: |
Illinois Tool Works Inc.
(Chicago, IL)
|
Family
ID: |
22650584 |
Appl.
No.: |
05/177,951 |
Filed: |
September 7, 1971 |
Current U.S.
Class: |
128/888; 604/307;
128/DIG.6; 604/180 |
Current CPC
Class: |
A61M
25/02 (20130101); A61M 5/158 (20130101); A61M
2005/1586 (20130101); A61M 2025/0266 (20130101); A61M
2025/0246 (20130101); Y10S 128/06 (20130101) |
Current International
Class: |
A61M
25/02 (20060101); A61f 013/00 () |
Field of
Search: |
;128/132R,133,154,155,348,349,350,351,215,DIG.6 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Gaudet; Richard A.
Assistant Examiner: Dunne; G. F.
Attorney, Agent or Firm: Robert W. Beart et al.
Claims
The Invention is claimed as follows:
1. A protective shield for application to a body surface area in
which an infusion needle has been inserted through a puncture in
the body surface, including a relatively rigid shallow cup-shaped
cover member adapted to be superimposed over said surface area
wherein said puncture is inwardly of the periphery of said cup
shaped cover member, a circumferential, laterally flexible flange
extending outwardly from and integral with the open margins of said
cover member, a double-faced pressure sensitive, centrally
apertured adhesive sheet permanently adhered to the under side of
said flange, an imperforate protective sheet detachably adhered to
the other side of said adhesive sheet, said protective sheet being
removable from said adhesive sheet without impairing the
adhesiveness of the latter, the lateral flexibility of said flange
being such as to permit impingement thereof with a substantial
circumferential extent of an inserted needle at a point radially
outwardly of said puncture whereby to preclude contamination and
unauthorized dislodgment of said needle, and a member impregnated
with disinfectant positioned within said body adjacent to the inner
wall surface of said cup-shaped cover member, said member
impregnated with disinfectant having an aperture formed therein
defining a central cavity, and providing said member at all
locations about the inner periphery with a width sufficient to be
adapted to overlie and cover said puncture.
2. A protective shield for application to a body surface area as
set forth in claim 1 wherein the shallow cup-shaped cover member is
transparent whereby to render visible the body surface area in the
vicinity of an inserted infusion needle.
Description
SUMMARY OF THE INVENTION
One of the problems inherent in the use of infusion type needles,
as for example needles employed for intravenous injections, is that
of maintaining the sterility of the needle. It has heretofore been
common practice to cover the inserted needle with sterile gauze
held in place by adhesive tape. It is an object of the present
invention to overcome the problem referred to above by providing a
protective cover or shield of the improved, practical design which
may be applied as a unit to the body surface area surrounding an
inserted infusion needle.
More specifically, the present invention contemplates an improved
protective shield arrangement of the type set forth above which may
be applied with the utmost ease and facility after a protective
peel sheet has been removed therefrom.
It is a further object of the present invention to provide a
protective shield or cover which will render clearly visible the
body surface area in the vicinity of the inserted needle.
It is a further object of the present invention to provide a
protective shield which will not only adhere firmly to the body
surface area but which will also maintain said surface area in an
antiseptic condition. To this end, the invention contemplates the
retention within a protective shield of means impregnated with an
antiseptic solution.
BRIEF DESCRIPTION OF THE DRAWING
The above mentioned and other objects and advantages will be more
clearly appreciated upon consideration of the accompanying drawing
wherein:
FIG. 1 is a perspective view of a protective shield representative
of one embodiment of the present invention disclosed in association
with a conventional intravenous needle;
FIG. 2 is an enlarged central sectional view of the protective
device taken substantially along the line 2--2 of FIG. 1;
FIG. 3 is a perspective view disclosing the constituent parts of
the protective device in exploded relation;
FIG. 4 is an end view of the protective shell as seen along the
line 4--4 of FIG. 2;
FIG. 5 is an enlarged fragmentary sectional view corresponding with
the left portion of FIG. 2;
FIG. 6 is a perspective view similar to FIG. 1 disclosing the
manner in which a strip of adhesive tape may be used to further
secure the protective shell in place; and
FIG. 7 is a perspective view similar to FIG. 5 disclosing the
manner in which a pair of adhesive tape sections may be employed as
additional means for securing the protective shell against
loosening.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring now to the drawing more in detail wherein like numerals
have been employed to designate similar parts throughout the
various figures, it will be seen that one embodiment of the present
invention is a protective device designated generally by the
numeral 10. The device 10 includes a shallow cup or shield section
12 preferably formed of a relatively rigid transparent plastic
sheet, commonly referred to in the packaging field as a "protective
blister". Extending radially outwardly on the open margin of the
cup 12 is a laterally flexible flange 14. Permanently attached to
the under surface of the flange 14 is a double-faced or
double-sided pressure sensitive sheet 16. The outer margin of the
pressure sensitive sheet 16 is shaped to conform with the outer
margin of the flange 14 and a central aperture 18, FIG. 3, conforms
with the shape defined by the inner margin of the flange.
Snugly retained within the shield 12 is a rectangularly shaped
porous member 20 defining a central aperture 22. The member 20 may
be formed of wick like or resilient foam material which has been
impregnated with a suitable disinfectant. A peel sheet 24, FIGS. 3
and 5, is adhered to and superimposes the entire underside of the
combined shield 12, flange 14 and impregnated member 20. The sheet
24 thus serves to seal the interior of the shield against
contamination and may be peeled away from the underside of the
adhesive sheet 16 just prior to the application of the protective
device 10 to a body surface 26, FIG. 2.
The above described protective device 10 may be applied to body
surface areas in the vicinity of a previously inserted infusion
needle such as a needle 28. It should be understood that the flange
14 is readily flexible laterally and when pressed over the needle
28 said flange will yieldably impinge the periphery of the needle
over a substantial portion of its circumferential extent. In other
words, the flange 14 will sealingly impinge the periphery of the
infusion needle 28. The disinfectant within the member 20 also
functions to maintain the sterile condition of the needle as well
as the body surface in the vicinity pierced by the needle. In FIGS.
1, 6 and 7, the body to which the protective device 10 is applied
is indicated by dot and dash lines 30.
In instances where it is deemed desirable, a strip of adhesive tape
32 may be employed as an auxiliary fastening device, FIG. 6, to
further secure the protective shield and flange against
dislodgment. Also, as illustrated in FIG. 7, a pair of adhesive
tape strips 34 may be employed along the opposed margins of the
flange 14. A vent 50 may be provided in the shield section 12 to
assure proper ventilation and to permit the egress of gases which
may develop within the shield. It will also be understood that the
shield should be placed in such a manner as to permit observation
of the body area surrounding the inserted needle.
From the foregoing it will be apparent that the above described
protective device functions effectively to maintain contamination
free an infusion needle as well as the body surface area
surrounding said needle. The peel sheet cooperates in preventing
evaporation of the disinfectant with which the member 20 is
impregnated and in fact insures the sterile condition of the entire
interior of the shield or cup. The ease with which the protective
device may be applied and subsequently removed will also be
apparent from the foregoing description. The protective device
contemplated hereby may be produced very economically. It will also
be apparent that the above described protective device has a very
practical application in instances where a sutured area, such as
might result from an operation, should be observed. Thus, the
sterile window of the protective device contemplated by the present
invention may be used in place of a bandage after bleeding of a
wound has ceased, thereby precluding the repetitive removal of
bandages in observing the condition of the wound.
* * * * *