JPH0626277Y2 - Bag for sterilization of medical supplies - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention mainly relates to a sterilization bag suitably used for high-pressure steam sterilization and gas sterilization of various medical supplies.

[Problems to be solved with conventional technology] As a packaging bag used for high-pressure steam sterilization or gas sterilization (sterilization with ethylene oxide gas) of various medical products such as artificial blood circuit tubes and absorbent cotton, one side of the bag There is a bag made of a non-breathable sheet such as a synthetic resin film using another breathable sheet made of breathable paper or non-woven fabric capable of blocking passage of bacteria.

In the case of this bag, both the front and back sheets are heat-bonded at both edges and the lower end to form a bag whose upper part is opened.After storing medical items to be sterilized, the opening is heat-bonded. Then, it is sealed and provided for the sterilization treatment.

Then, in order to take out the sterilized contents, the edges of the front and back sheets are held and pulled to peel off the heat-bonded portions at the side edges.

However, the conventional sterilization bag is a breathable sheet for sterilization on one side, which not only weakens the strength but also requires a considerably strong force to peel off the heat-bonded portion, and cannot be easily opened. In addition, depending on how much force is applied during the opening operation, there is a risk that the contents will pop out due to the force of opening.

Moreover, since the air-permeable sheet of paper quality is peeled off, fine paper powder may be generated and attached to the sterilized contents. If it is completely peeled off as described above, it cannot be reused at all. On the other hand, it is troublesome to use scissors and cutters for opening each one.

Furthermore, a sterilization bag has been proposed in which a permeable sterilization breathable sheet is arranged only on the lower part of one side of a bag made of a synthetic resin film, but the opening operation is the same as the above to remove the sterilized contents. In the same manner, in particular, a stronger force is required to peel off the heat-bonded portion between the films, and the portion of the breathable sheet is also peeled off, which causes the same problem as described above.

In view of the above, the present invention has sufficient strength and can perform a good sterilization action, and can easily perform the opening operation when the sterilized contents are taken out without the above problems and can be easily reused. In particular, the present invention aims to provide a bag suitable for sterilization of medical supplies.

[Means for Solving the Problems] In the sterilization bag of the present invention for solving the above problems, the front and back of the bag body are formed of a non-breathable film made of a synthetic resin, and the bottom is a breathable sheet for sterilization. The film is formed on one of the front and back sides of the bag body by attaching a narrow separating tape to the inside, and using one end of the tape as a knob piece to keep airtightness outside the bag. It is characterized in that the film can be exposed or cut and raised so that the film can be cut and opened by pulling the cutting tape.

In particular, the bag body is heat-bonded at both side edges so that a non-breathable front and back film made of a thermoplastic resin is formed into a tubular shape, and a breathable sheet for sterilization is gusseted between the front and back films at the lower end. It is folded and inserted, and both ends are heat-bonded to the lower edges of the front and back films respectively, and a breathable sheet is formed as the bottom part.Furthermore, the tab pieces of the separating tape attached to one of the front and back films are It is preferable that the film is formed outside the inner edge of the heat-bonded portion of the film.

[Operation] The sterilization bag of the present invention which solves the above-mentioned problems performs sterilization in a state in which a sterilization object such as a medical article is stored in the bag body and the opening is sealed by the heat-bonding means. The front and back of the bag are non-breathable films, but the bottom is formed of a breathable sheet, so high-pressure steam and sterilizing gas pass through the breathable sheet and enter the bag to perform a predetermined sterilization treatment. Is given.

Then, in the case of taking out contents such as sterilized medical supplies, a detachable tape stuck to one of the front and back films is provided outside the bag or can be cut and raised, for example, a front and back film If you pull by holding the knob pieces that are on the outer side of the inner edge of the heat-bonded part, the film will be cut and opened along both side edges of the separating tape with a narrow width corresponding to the tape. Can be easily opened without requiring.
Further, the opening can be widened so that a relatively large content can be easily taken out.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

In the figure, (1) and (11) are polyester, polyethylene,
A non-breathable front and back film made of polypropylene or other thermoplastic resin film.
(11) is heat-bonded at both edges to form a tubular shape. (2a)
(2b) shows the heat-bonded portions on both sides. (3) is a breathable sheet for sterilization, the front and back film at the bottom end of the bag (1)
Between (11), insert by inserting in a two-fold gusset shape, and both ends thereof are heat-bonded (4a) (4b) to the lower edges of the front and back films (1) and (11), respectively, and both ends are Front and back film (1)
Thermal bonding (5a) (5b) is performed integrally with both side edges of (11), thereby forming a bag (A) having the breathable sheet (3) as a bottom. By forming in this way, bag making is easy, and heat management of heat bonding is easy to perform. (6) is an opening at the upper end.

One of the front and back films (1) and (11) in the bag body (A), for example, the front side film (1) has a narrow cut that extends in the bag cross direction as shown in the drawing at the required location. Tape
While sticking (7) on the inside, the tape (7) at the heat-bonded portion (2a) or (2b) of the front and back films (1) and (11)
Part of the knob piece (7a) is formed so that it can be cut and raised from the outside of the bag while maintaining airtightness, and this knob piece (7a)
The film (1) is provided so that the film (1) can be cut and opened by pulling the cutting tape (7) while holding it.

In the case of the illustrated embodiment, a tape-shaped film (17) wider than the separating tape (7) is attached to the inner surface of the film (1) by a heat-bonding means, and the film (17) is centered in the width direction. Two cut lines (19) (19) are formed in the longitudinal direction at a slight interval corresponding to the cut tape (7), and the cut lines (19) (19) are separated from each other. It is described as tape (7). Furthermore, both ends of the tape-shaped film (17) are heat-bonded integrally with the front and back films (1) and (11) at the heat-bonding portions (2a) and (2b), and the film (at the heat-bonding portion on one side (2a) ( 17) is enlarged and heat-bonded in the vicinity thereof, and a non-adhesive part (12c) is left at the center of the expanded heat-bonded part (12a), and the film (1) side is formed in this non-adhesive part (12c). The notch (8) forms a part of the separating tape (7) between the notch lines (19) and (19) as a tab piece (7a) capable of being cut and raised.

Therefore, by pulling the knob piece (7a) while pulling it, the cutting tape (7) is cut off from the cut lines (19) (19), and at the same time, the film (1) is also cut open. In this case, both sides of the tape film (17) are film
It remains on the opening edge of (1), and the above-mentioned separating opening action along the cutting lines (19) and (19) is favorably performed.

The unsealing means using the separating tape (7) is not limited to one provided in the transverse direction of the bag at the substantially central portion in the vertical direction as shown in the figure, and may be provided in the transverse direction near the upper end and the lower end. It can be carried out by appropriately setting it according to the contents and the like, such as providing it in the bag longitudinal direction at required portions on the widthwise central portion or both sides of the bag.

As the breathable sheet (3), a sheet made of breathable paper or nonwoven fabric is used as in the conventional case. In the case of bag making by thermal bonding as described above, a nonwoven fabric of thermoplastic synthetic resin fibers is preferably used. The thickness of these sheets, the size of the bag (A), and the like can be appropriately set so as to be suitable for the sterilization action.

The above sterilization bag of the present invention is used for sterilizing and storing various medical products such as tubes for artificial blood circuits, absorbent cotton, etc., and the sterilization target is stored through the upper opening (6). The opening is sealed by heat bonding, and is sterilized in this state. At this time, gas such as high-pressure steam for sterilization can pass through the breathable sheet and enter the inside, so that sterilization can be performed without any problem.

Then, when taking out the sterilized contents, pulling the separation tape (7) attached to the inner surface of the film (1) on one side of the front and back with the knob piece (7a), the tearability of the film The film (1) is separated and opens along both side edges of the separating tape (7). Since this opening (20) can be widened greatly, even relatively large contents can be taken out easily.

Even when opened as described above, the opening (20) is relatively narrow, so if the entire contents are not used, keep it as it is or by closing it with tape etc. and leaving it in a sterile room for storage. It can be used as a bag, and can also be reused as a bag for treating used waste.

It is also possible to reuse the sterilization process by storing the object to be sterilized in the opened bag through the opening port (20) and closing the opening port (20) with a paper tape for chemical indicators. become.

[Advantage of the Invention] As described above, according to the present invention, most of the front and back of the bag body are formed of the synthetic resin film, and the bottom portion is formed of the breathable sheet for sterilization. In addition, the sterilization process can be reliably performed.

In particular, when removing the sterilized contents, pull the separating tape on one of the front and back films,
Since a part of the film can be cut and opened along the tape with a narrow width, the opening operation is easy and there is no risk of the contents popping out during this opening operation, and the contents can be easily and safely taken out. be able to. Moreover, since the air permeability for sterilization does not tear the sheet or peel off the adhesive part with the film, there is no paper dust generated at the time of opening and there is a risk of contaminating sterilized contents such as medical supplies. Nor.

Further, since it can be cut and opened with a narrow width as described above, it can be reused as various storage bags, sterilization bags, and bags for disposal.

Further, by using a thermoplastic resin film on the front and back of the bag, there is an advantage that heat management for heat bonding during bag making can be easily performed and the manufacturing and provision can be performed at low cost.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along the line II-II in the previous figure, and FIG. 3 is a partially cutaway perspective view of the opening means. FIG. 4 is a perspective view showing a state in which an object to be sterilized is stored and sealed, and FIG. 5 is a perspective view showing an opened state. (1) (11) …… Front and back films, (2a) (2b) …… Heat adhesive parts on both sides, (3) …… Breathable sheet for sterilization, (6) …… Opening, (7)
...... Separating tape, (7a) ...... Knob piece, (8) …… Incision, (17) …… Tape film, (19) (19) …… Incision line, (20) …… Opening mouth.

Claims (2)

[Scope of utility model registration request] 1. A bag body is formed of a non-breathable film made of a synthetic resin on the front and back sides, and a breathable sheet for sterilization at the bottom portion thereof. A separation tape of width is attached to the inside, and one end of the tape is provided as a knob piece so that it can be protruded or cut and raised outside the bag while maintaining airtightness. A sterilization bag for medical supplies or the like, characterized in that the film can be cut and opened. 2. The bag body is heat-bonded at both side edges so that a non-breathable front and back film made of a thermoplastic resin has a tubular shape, and further, a breathable sheet for sterilization is provided between the front and back films at the lower end. Is folded and inserted in a gusset shape, both ends of which are heat-bonded to the lower edges of the front and back films, respectively, and a breathable sheet is formed as the bottom part of the separating tape attached to one of the front and back films. The sterilization bag for medical supplies or the like according to claim 1, wherein the tab piece is formed outside the inner edge of the heat-bonded portion of the front and back films.