JP2646372B2 - Hemostatic patch - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a hemostatic patch applied to artificial dialysis, collection of blood and other wounds of a human body.

Conventional hemostatic bandages are made of rayon, cotton, urethane, etc. in the central zone of the adhesive layer of the adhesive tape.
Although there is an apparatus provided with an inflating pad made of a material such as rubber, there are few things which are sufficiently satisfactory for hemostasis.

The present invention provides a pad having an adhesive material formed of compressed cotton as a main material in the central area of the upper surface of the fiber assembly on the adhesive cotton of the adhesive tape piece, and is not softened by absorbing body fluids.
Holding the desired shape and required elasticity to press the wound as needed to obtain a hemostatic effect, and to absorb and retain blood and other body fluids discharged from the wound sufficiently and adversely affect the adhesive strength of the adhesive. And the patch can be stably stuck to the skin surface without any external contamination.

In the following, an example will be described. An adhesive tape piece (3) having an adhesive (2) of a base material (1) such as a nonwoven fabric or a plastic film is formed. 8) can be provided.

A pad (6) having a contact material (5) formed mainly of compressed cotton on the upper surface of the fiber assembly (4) is provided in a substantially central region of the adhesive of the adhesive tape piece. . The fiber assembly (4) is formed of fibers having excellent liquid absorbing and retaining properties, and has excellent water absorbing and liquid absorbing properties such as cotton and rayon cotton on the lower surface of a non-woven fabric (4a) having appropriate flexibility. A fibrous cotton layer (4b) and a lower surface thereof are overlaid with a thermoplastic plastic film (4c) such as polyethylene, ethylene-vinyl acetate copolymer, etc., and the outer surface thereof is covered with a covering cloth (4d). For example, the cloth has its end (14d) fixed to a required portion of the multilayer. In some cases, a nonwoven fabric similar to the nonwoven fabric (4a) is interposed between the fibrous cotton layer (4b) and the plastic film (4c). The covering cloth (4d) can be a coarse and thin knitted cloth or woven cloth. For example, it can be expanded and contracted on an ultra-thin cloth coarsely woven or knitted with a filament of recycled fiber such as nylon, polyester, other synthetic fibers or rayon. It is preferable that at least the upper and lower surfaces and one of the opposing side surfaces of the multilayer are continuously covered, and both ends (14d) are fixed on the laminated plastic film by bonding, fusion, or the like. . The nonwoven fabric, the fiber cotton layer, and the plastic film can be sewn relatively loosely with a sewing machine or the like (14). The shape can be stably maintained without the occurrence of the like, and the liquid absorption retention property is further improved.

The material (5) is formed by compressing a thin layer (5a) of compressed cotton formed by compressing fibers such as absorbent cotton, soft cotton, and other synthetic fiber cotton while entangled with each other. In order not to impair the flexibility, elasticity, air permeability, liquid permeability and the like of the thin layer itself, the edge portion and other appropriate places are adhered to each other with a pressure-sensitive adhesive, an adhesive or the like, and are laminated to a predetermined layer thickness. The shape of this material can be arbitrarily selected, such as a columnar shape, a prismatic shape, etc., and the size thereof is appropriately selected and formed according to the purpose.
In many cases, it may be formed into a prism having a thickness (height) of about 1.5 to 5 mm. The material formed as described above does not lose its shape, has appropriate elasticity, and can exert a compression effect when applied to a wound dressing. This material can be fixed to the required surface of the fiber assembly by spotting or the like with an adhesive or an adhesive.

(7) is a release paper adhered to the exposed adhesive surface of the piece of adhesive tape. In addition to using a continuous piece of release paper, an end on a pad is used to facilitate the peeling and the application of the adhesive after peeling. It can also be used by dividing it into two parts so that the parts overlap.

One or a suitable number of the thus formed hemostatic patches are supplied to the market, if necessary, in paper or plastic film bags.

The present invention is configured as described above, for example, when a therapeutic treatment such as artificial dialysis is completed, the adhesive of the pad with the needle is pressed against the wound of the needle withdrawn from the injection needle, and the adhesive is applied with the adhesive. When applied to the skin through the skin, the wound is appropriately compressed to suppress the outflow of blood etc., gradually solidify and stop bleeding, and the blood etc. flowing out at the initial stage of application of the patch passes through the material and the fiber aggregate In this case, the material does not store blood and other discharges, so it does not deform due to softening or collapse, and can maintain a stable compressed state. It does not adversely affect the adhesive by flowing out of the adhesive, and does not leak dirt on the outer side of the attached patch. In addition to hemostasis after the artificial dialysis, injection, wound of the injection needle after blood collection It is also useful for hemostasis of cuts and the like.

[Brief description of the drawings]

1 is a plan view, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG.
FIG. 4 is a cross-sectional view, and FIG. 4 is a cross-sectional view, and FIG. (1) is a base material, (2) is an adhesive, (3) is a piece of adhesive tape, (4) is a fiber aggregate, (4a) is a nonwoven fabric, (4b) is a fiber cotton layer, and (4c) is a plastic film. , (4d) is a covering, (5) is a material, (6) is a pad, (7) is release paper, (1)
4) sewing part

Claims (3)

(57) [Claims] An adhesive material for hemostasis wherein a pad having an adhesive material mainly composed of compressed cotton is provided on the adhesive surface of an adhesive tape piece on the upper surface of a fiber assembly. 2. A fiber assembly comprising a non-woven fabric, a fiber cotton layer, and a plastic film sequentially laminated, and the outside thereof is covered with a cloth.
2. The hemostatic patch according to claim 1, wherein an end of the covering is fixed on the plastic film. 3. The hemostatic patch according to claim 2, wherein a laminated nonwoven fabric, a fiber cotton layer, and a plastic film are sewn.