U.S. patent number 3,917,160 [Application Number 05/419,026] was granted by the patent office on 1975-11-04 for device for the sterile enclosure of non-sterilizable objects.
This patent grant is currently assigned to Medical Products Octagon AB. Invention is credited to Sven Emanuel Olerud.
United States Patent |
3,917,160 |
Olerud |
November 4, 1975 |
Device for the sterile enclosure of non-sterilizable objects
Abstract
A device for the sterile enclosure of non-sterilizable objects,
comprising a) an inner sheath having a first sheath opening
facilitating means extending across the sheath, lengths of an
adhesive material arranged on both sides of said means on the
inside of said sheath and a removable protective material strip
covering the lengths of adhesive material, and b) an outer sheath
having second sheath opening facilitating means extending across
said sheath.
Inventors: |
Olerud; Sven Emanuel
(Lannaholm, SW) |
Assignee: |
Medical Products Octagon AB
(Uppsala, SW)
|
Family
ID: |
20316353 |
Appl.
No.: |
05/419,026 |
Filed: |
November 26, 1973 |
Foreign Application Priority Data
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Jan 18, 1973 [SU] |
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73006678 |
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Current U.S.
Class: |
383/93; 383/211;
383/111 |
Current CPC
Class: |
G03C
3/003 (20130101); B65D 75/52 (20130101) |
Current International
Class: |
B65D
75/52 (20060101); G03C 3/00 (20060101); B65D
033/16 (); B65D 033/00 () |
Field of
Search: |
;229/62,66,55
;150/3 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Norton; Donald F.
Assistant Examiner: Farrow; Douglas B.
Attorney, Agent or Firm: Philpitt; Fred
Claims
What I claim is:
1. A flexible enclosure device for enclosing articles in a sterile
manner comprising:
a. two end sections of generally tubular configuration that are
each closed at one end and open at the other end, one of said end
sections being annularly disposed around the other end section,
b. a tubular intermediate section having two open ends,
c. a first connecting means for detachably connecting one open end
of the tubular intermediate section to the open end of one end
section in a gas tight manner,
d. a second connecting means for detachably connecting the other
open end of the tubular intermediate section to the open end of the
other end section in a gas tight manner,
e. adhesive material disposed adjacent the interior of the open end
of the inner of said two annularly disposed end sections, and
f. a removable protective strip covering said adhesive
material.
2. A flexible enclosure device according to claim 1 wherein at
least one of said connecting means is composed of a circumferential
row of perforations which are covered by a removable protective
strip.
3. A flexible enclosure device according to claim 1 wherein at
least one of said connecting means is a pull flap disposed around
the circumference of the tube.
4. A flexible enclosure device for enclosing articles in a sterile
manner comprising:
a. an elongated tube having its opposite ends closed,
b. said elongated tube being divided into two end sections and an
intermediate section by two spaced apart sets of circumferential
perforations intermediate the opposed ends of said elongated tube,
one of said end sections being annularly disposed around the other
end section,
c. adhesive material disposed around the circumference of the inner
of said two annularly disposed end sections at a point which is
between its closed end and the nearest set of circumferential
perforations, and
d. at least one removable protective strip covering said adhesive
material and said circumferential perforations.
Description
The present invention relates to a device for the sterile enclosure
of non-sterilizable objects, such as X-ray cassettes for example,
in an envelope.
With some surgical operations it is necessary to examine the result
of the operation by means of a radiograph (X-ray photograph).
Before the X-ray cassette is placed in position for the radiograph
to be taken, it is normally placed in sterile cloth bags. Since the
cassette cannot be sterilized, however, handling of the cassette
can be hazardous with respect to the surgical procedure.
This problem is now overcome by the present invention, which
enables non-sterilizable objects, such as X-ray cassettes, to be
handled without risk of contamination, thereby maintaining the
desired state of sterility at the operating table and to the
surgical wound.
The device of the present invention is characterized by the fact
that it comprises a) an inner sheath having a separation zone
extending thereacross and lengths of adhesive material attached to
both sides of the separation zone on the inside of the sheath, the
lengths of adhesive material being covered by a removable
protective strip, and b) an outer sheath having opening
facilitating means extending thereacross. In accordance with the
invention the outer sheath opening facilitating means may have the
form of a separation zone extending across the sheath and being
covered by a removable protective strip, or may have the form of
pull-tabs.
The invention will now be described more clearly with reference to
the accompanying drawing, where
FIG. 1 shows in longitudinal section one embodiment of the device
according to the invention, the device being shown in an open state
with an object inserted thereinto,
FIG. 2 is a longitudinal sectional view of the device shown in FIG.
1 showing the device when closed and further showing the initial
stages of the separation of the outer sheath and inner sheath,
and
FIG. 3 shows part of another embodiment of the device according to
the invention.
The device shown in FIGS. 1 and 2 comprises an inner sheath or
casing 1 and an outer sheath or casing 2 which is formed integrally
with the sheath 1. A separation zone 3 extends across the sheath 1
and lengths 4 of adhesive material are arranged on both sides of
the separation zone 3, on the inside of the sheath 1. The lengths
of adhesive material 4 are covered with a removable protective
strip 5. The outer sheath 2 has an opening facilitating means which
extends in the cross direction of the sheath and which has the form
of a separation zone 6. As will be seen from the drawing, the zone
6 is covered by a protective strip 7.
By "cross direction" is meant here and in the following a direction
which is generally parallel with the edges of the sheath
openings.
FIG. 1 shows an X-ray cassette 8 enclosed in the sheath 1, the
cassette having been inserted in the sheath through the opening
thereof. The device of the present invention is used as
follows:
The device is sealed by removing the protective strip 5 and
applying pressure to the outer surfaces of the outer sheath 2 in
the region of the separation zone 3, the lengths of adhesive
material 4 tightly sealing the inner sheath 1. The protective strip
7 is then removed, to expose the separation zone 6. The sheaths are
then divided into three parts as shown in FIG. 2, namely a first
part which includes the upper part of the inner sheath, identified
by the reference 1a, and the upper part of the outer sheath 2,
identified by the reference 2a, a second part, 2b, of the outer
sheath 2, and a third part comprising the lower part, 1b, of the
inner sheath.
In accordance with the invention, the two sheaths are sterilized
before inserting the cassette thereinto. When the cassette, which
is not sterile, is inserted into the sheath, it comes into contact
with the inner surfaces of the inner sheath, while the person
inserting the cassette touches the outside of the outer sheath and
possibly also the inside of the inner sheath. The outside of the
inner sheath and the inside of the outer sheath, however, remain
untouched and are still sterile. The sheaths can be separated into
the aforementioned different parts while retaining their sterility,
by gripping only the outside of the first and second parts and
pulling them apart and by turning the second part so that the third
part can slide out.
The separation zones may have the form of zones provided with
perforations, or the sheaths may be cut and the cut surfaces of the
sheath opening surfaces held fixed in position by means of
protective tape.
As an alternative to the separation zone 6 and cooperating
protective tape 7, the opening facilitating means of the outer
sheath may have the form of pull flaps 9 (FIG. 3) arranged at a
portion of the sheath located furthest from the sheath opening, by
means of which a seal sealing the outer sheath can be broken.
In accordance with another embodiment of the invention, the inner
sheath may also be provided with pull flaps, such as those shown at
10 in FIG. 3, to facilitate removal of the cassette from said third
part 1b, which forms the lower portion of the inner sheath, upon
completion of the X-ray photograph and when desiring to develop the
X-ray film in the darkroom.
The sheaths are conveniently made of a flexible plastics material,
although other flexible material, such as paper may also be
used.
Although the invention has been described with reference to
preferred embodiments thereof, it is not restricted to such
embodiments. For example, the sheaths need not be produced
integrally, but may comprise two separate sheaths, the edges of the
openings of which may be interfolded or affixed together by
protective tape, to join said sheaths together.
* * * * *