JPS6244251A - Structure of bandage - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to the structure of a bandage that is easy to peel off.

``Prior Art'' As this type of bandage, bandages with various structures have been put to practical use or have been proposed in place of plaster bandages mainly made of plaster. For example, a bandage impregnated with a water-curing resin that hardens upon contact with air using moisture in the air as a medium, or a surgical bandage impregnated with a photocurable resin disclosed in Japanese Patent Publication No. 54-39675, i.e., a polyfunctional 7-acrylate urethane or methacrylate bandage. It has a structure in which a base material is impregnated with a photocurable resin composition whose main ingredients include urethane and a photosensitizer.
The medical-surgical dressing of No. 0-12056 is a sheet of silicone elastomer foam with reinforcement, one surface of which is an open-cell surface layer, and the surface of which is substantially a non-cellular surface membrane. It is a structure.

"Problems to be Solved by the Invention" The conventional bandages and techniques described above have various advantages over the plaster cast bandages that have been used for a long time, such as being lightweight and preventing plaster from scattering. In addition, once a bandage impregnated with a water-curable resin or the like is cured, the wrapped base materials become firmly solidified together, making it ideal for use as a plaster cast. However, there are problems in the peeling process. That is, as mentioned above, since the base materials are firmly solidified together, tools such as cast cutters and cast blades are required, and in order to use these tools, at least two people who are skilled in peeling casts are required. 1c#:l: At least 20 to 3
It takes approximately 0 minutes and is difficult for both the patient and the operator.

``Means for Solving the Problems'' Therefore, the present invention provides a structure of a bandage that can be removed extremely easily and in a short time, and also allows one operator to perform the task. , its gist is that it is a bandage that hardens on contact with air and is impregnated with a solvent that is viscous at room temperature and contains free isocyanate groups obtained by adding a polyhydric alcohol to a polyhydric isocyanate and reacting it. The bandage has a structure in which a peeling solvent portion having no affinity with the solvent is provided on at least one surface of the bandage.

"Operation" Next, the operation of the present invention will be described. The bandage 1, which is stored in a wet state in a bag made of aluminum foil or the like, is taken out by cutting the bag.

For example, when the bandage 1 is sequentially wrapped around the arm wrapped in cotton or other parts of the human body, the solvent 2 impregnated in the bandage 1 is released into the air from the wound part. It is gradually cured using water as a medium. In this case, since a peeling solvent part 3 having no affinity with the solvent 2 is provided in the overlapped part of the bandage 1, the core bandage 1 is not adhered as shown in FIG. A cast is constructed. Therefore, for example, when you try to peel off this cast at a later date, you will notice that part of the wrapper Wl is not adhered via the peeling solvent part 3 as described above (ideally, this unadhered area should be 50 to 60%). ), the bandage 1 can be peeled off relatively easily with a certain amount of force by pulling the ends of the bandage 1 without using any of the various instruments as described above.

"Example" The drawing shows an example of the present invention, 11 is gauze,
A known bandage made by impregnating a glass fiber woven fabric or other fiber base material with a solvent 2 that is viscous and liquid at room temperature and contains free isocyanate groups obtained by adding a polyhydric alcohol to a polyvalent isocyanate and reacting the same. This bandage 11 has the property of being hardened by contact with air using moisture in the air as a medium, and is normally sealed and stored in an aluminum foil bag (not shown).

The present invention is based on this known bandage 11, and on at least one side of the bandage, a peeling solvent part 3, which has no affinity with the solvent 2, such as a polyethylene resin solvent, is formed in a polka dot pattern as shown in FIG. Scattered dot pattern ((a) in the same figure), straight knitting pattern ((b), (c) in the same figure), plaid pattern ((=) in the same figure), and even curved knitting patterns and modified plaid patterns (not shown). , a modified curve knitted pattern, etc. to constitute the bandage 1. And this peel! The area ratio of the solvent part 3 is 50 of the surface area of the bandage 1.
~60% seems ideal. The bandage 1 thus constructed is rolled up and stored in an aluminum foil bag as described above.

It is also possible to provide the peeling solvent portion 3t on both sides of the bandage 1.

Next, to explain the working state of the present invention, a bandage 1 stored in a wet state in a bag made of aluminum foil or the like is removed by cutting the bag. When this bandage 1 is wrapped around the arm or other parts of the human body one after another, the solvent 2 impregnated there will gradually harden using the moisture in the air as a medium. be. In this case, since a peeling solvent part 3 having no affinity with the solvent 2 is provided between the overlapped part of the bandage 1, that is, between the upper and lower bandages 1, the core bandage 1 is removed as shown in FIG. The cast is constructed without being glued.

Therefore, for example, when attempting to remove this cast at a later date, since a portion of the bandage 1 is not adhered by the peeling solvent 3 as described above, it is possible to remove the bandage 1 without using various instruments as in the past. By pulling the end, it can be peeled off relatively easily with a certain amount of force. Since it can be peeled off by pulling in this way, it can be done relatively easily by a single operator, and the time required is extremely short.

"Effects of the Invention" As described in detail above, the present invention provides a bandage that is impregnated with a solvent that is viscous and liquid at room temperature and that contains free isocyanate groups, at least on one side of which is coated with a release solvent that has no affinity with the solvent. Because of the structure in which 1) the upper and lower sides of the wound bandage are bonded to each other, there is an effect that the portion corresponding to the peeling solvent portion is not bonded. (2) Therefore, there is no need to use conventional instruments, and it can be removed relatively easily by a single operator, and only takes about 5 to 10 minutes. ■Since the cast is removed by peeling, it does not require any skill and can be removed with confidence. ■It has many advantages, such as less soiling of hospital rooms, patients, and surgeons.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway perspective view of the main part, FIG. 2 is an enlarged sectional view of the main part, and FIG.
A) - (→ are plan views showing examples of peeling solvent parts. 1.11...Bandage, 2...Solvent, 3...Peeling and cutting part Patent applicant Osamu Akatsuka Naka Ono Nobu Koguro 1) Yoshiyuki Procedural Amendment (Yakiji 1939'!'4 II WX 784771 No. 4
, agent

Claims (1)

[Claims] (I) By contact with air impregnated with a solvent that is viscous and liquid at room temperature and has free isocyanate groups obtained by adding a polyhydric alcohol to a polyhydric isocyanate and reacting it. A structure of a bandage that hardens, wherein at least one surface of the bandage is provided with a release solvent portion that has no affinity with the solvent. (II) The structure of the bandage according to claim 1, wherein the peeling solvent portion accounts for 50 to 60% of the area of the bandage.