JPH0140503Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a hemostatic patch tape, and more particularly to a hemostatic patch tape for protecting the skin from needle marks caused by blood collection, blood transfusion, injection, etc., and for hemostasis.

(Prior art and problems to be solved) Scars caused when a syringe needle is removed for blood collection, blood transfusion, etc. are temporarily protected with a bandage or gauze to stop the bleeding until the scars are closed by the coagulation effect of the blood. and prevention of bacterial invasion. A simple way to do this is to use fabric with adhesive applied to the back side.
Pasting gauze etc. is practiced.

In this case, if there is a large amount of blood flowing from the needle track, the adhesive may lose its effectiveness and peel off, so the adhesive layer has many small holes so that the blood can be removed using gauze or other hemostatic material on the top surface. Some proposals have also been made to allow the liquid to be absorbed into the body.

If a large number of small holes are distributed in the adhesive layer, the blood that flows out will be absorbed into the hemostatic body through these small holes.
The adhesive surface other than the small hole is still wet with blood, and the adhesive often loses its effectiveness and peels off before the blood is absorbed and coagulated.

What is important here is to prevent the highly fluid fresh blood flowing out from the needle track immediately after needle removal from coming into contact with the adhesive surface as much as possible, but a method that only distributes small holes does not necessarily have a sufficient effect.

Furthermore, since adhesives exhibit a more or less unfavorable irritant reaction to the skin of a living body, especially to the periphery of injured skin, it is necessary to avoid applying hemostasis patch tape or adhesive plaster over needle marks as much as possible. It won't happen.

On the other hand, in terms of handling, conventional hemostatic patch tapes are generally flexible and weak, so
When processing small sheets with fingertips, the patch tape wrinkles due to self-adhesion, making it inconvenient to handle.

Therefore, it adheres reliably to the skin and has excellent hemostasis, and in particular, there is little chance of the adhesive coming into contact with the needle marks.
Furthermore, it has been desired to develop a patch tape for hemostasis that is easy to handle.

(Means for Solving the Problems) The problem with the above-mentioned prior art is that it requires a hemostatic base material made of tissue with high water retention, and a film core material coated with an adhesive layer on the upper and lower surfaces and bonded to the lower surface of the hemostatic base material. an opening having a width corresponding to the area to be protected on the skin is formed in approximately the center of the film core;
The problem is solved by a hemostasis patch tape characterized by forming an adhesive area to the skin surface outside the opening.

(Function) In the hemostatic patch tape of the present invention, blood from a blood transfusion needle extraction site is absorbed by the hemostatic base material, which is made of a large water-retaining tissue, where it coagulates and stops bleeding, and the scar is protected from the outside. be done.

Here, the hemostatic base material is adhered to the skin via a film core material that functions as a so-called double-sided adhesive tape, using pressure-sensitive adhesives on the upper and lower surfaces, and the film core material has a protective area on the skin at approximately the center. For example, an opening with a width corresponding to the needle mark and its periphery is formed, and blood from the needle mark passes directly through the opening to the hemostatic base material without almost touching the adhesive layer on the bottom surface of the film core. be absorbed into. On the other hand, hemostatic patch tape is adhered to the skin surface in the adhesive area of the adhesive layer on the outside of the opening, that is, the area sufficiently far away from the needle track, but blood hardly comes into contact with this area, and there is no The adhesion function will not be impaired.

Furthermore, since the adhesive application area does not cover the needle mark at all, no undesirable stimulation is applied to the puncture area where the biological tissue under the skin is directly exposed.

Furthermore, the core film, which functions as a double-sided adhesive film in the hemostatic patch tape, imparts appropriate rigidity to the entire hemostatic patch tape and facilitates its handling.

In the present invention, it is preferable to use a nonwoven fabric with high water retention as the hemostatic base material, and a nonwoven fabric made of natural cellulose such as cellulose tissue is particularly preferable. This kind of cellulosic nonwoven fabric has far greater water retention or water-holding ability than nonwoven fabric made of synthetic fibers or synthetic resin foam, and the degree to which absorbed blood oozes out when a hemostasis patch tape is pressed is reduced. few.

If a hemostasis patch tape is used in this way, the nonwoven fabric's large blood-retaining properties will reduce the chance of blood seeping out on its surface, but forming a non-water-permeable barrier film on the surface of this hemostatic base material will improve this effect. will further increase.

Furthermore, it is convenient for the hemostatic patch tape of the present invention to be placed in large numbers on a film release paper made of a suitable material such as polyethylene teretalate (PET), etc., and to be peeled off individually when used.

(Example) The present invention will be explained in detail below using examples.

FIG. 1 is an enlarged sectional view of a specific example of the hemostatic patch tape of the present invention.

In the figure, a hemostatic patch tape 1 includes a substantially circular hemostatic base material having a nonwoven fabric layer 2 made of cellulose fibers, and a core film 5 made of polyethylene terephthalate (PET) having pressure-sensitive adhesive layers 3 and 4 on the upper and lower surfaces. A sufficiently wide opening 6 (approximately 7 mm in diameter) corresponding to the needle marks and the peripheral edge of the skin is provided in the approximate center of the core film 5, including the upper and lower adhesive layers 3 and 4. The pressure-sensitive adhesive 3 on the bottom surface is attached to the skin.
is formed as an annular adhesive area on the outer periphery of this opening 6. Note that a PET film 7 as a water-impermeable barrier film is disposed on the upper surface of the nonwoven fabric layer 2.
are laminated, and the individual hemostatic patch tapes 1 thus formed are arranged so as to be able to be peeled off from a PET film 8 as a peeling film base material.

Although the hemostatic patch tape 1 can be manufactured by various methods, it is practically preferable to manufacture it by a series of steps shown in FIGS. 2 to 4, for example.

Pressure sensitive adhesive layers 3 and 4 as shown in FIG.
Peel off the core film 5 formed with the film base material 8.
A process release paper 9 is adhered to the upper surface of the core film 5 to form an intermediate laminate.

Next, through holes corresponding to the openings 6 of the hemostatic patch tape 1 are punched out in a row at predetermined intervals in this intermediate laminate, and then a process release paper 9 is formed as shown in the left side of FIG. is removed to expose the adhesive layer 4.

Next, as shown in FIG.
Each layer of the thus obtained final laminate (except for the release film substrate 8 as the bottom layer) is cut into a circular half-cutting process, for example, as shown in the third figure.

Further, as shown on the left side of FIG. 3 or as shown in FIG. 4, the scraps 10 are removed to obtain individual hemostatic patch tapes 1 arranged on the release film base 8.

As shown in FIG. 5, the hemostasis patch tape 1 of the present invention is made by pulling out the release film base material 8 while bending it downward on a roll 11 of an appropriate tool (not shown), thereby increasing the rigidity of the core film. It can be easily peeled off and attached to needle marks, etc.

Here, the opening 6 of the core film 5 on the lower surface of the hemostasis patch tape 1 is formed in a size (about 7 mm in diameter) that can sufficiently accommodate the needle mark and its periphery. It can be easily matched to the trace, so that the adhesive area around the opening does not touch the needle trace.

Therefore, all the blood flowing out from the needle mark is guided to the nonwoven fabric layer 2 through the opening 6 and is absorbed and coagulated, so there is no risk of it seeping out around the hemostatic patch tape 1 and staining clothes. In particular, since blood does not touch the adhesive layer 3 at all, its adhesive function is not impaired and the hemostasis patch tape does not peel off from the skin. Further, since the adhesive layer 3 is formed only in the annular region around the opening 6, the adhesive does not come into contact with the wound portion of the needle mark and cause a biochemical irritation reaction. In addition, the core film 5, which is used as a double-sided adhesive film for adhesion between the nonwoven fabric layer 2 and the skin, has appropriate rigidity, making the hemostatic patch tape stiffer and easier to handle. .

Although the present invention has been described above for use in stopping bleeding from needle marks, the present invention can also be applied to temporarily protect and stop bleeding from small wounds such as cuts and punctures on fingertips.

(Effects of the invention) As described above, according to the invention, the hemostasis patch tape used to protect needle marks during blood transfusions, blood sampling, etc. and to stop bleeding can be reliably adhered to the injured skin. It is possible to prevent clothes from staining and to sufficiently protect scars, and there is no risk of irritation caused by the adhesive to the scratched area.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the hemostatic patch tape of the present invention, FIGS. 2 to 4 are explanatory diagrams showing the manufacturing process of the hemostatic patch tape, and FIG. 5 is an explanatory diagram showing one mode of its use. . 1... Hemostatic patch tape, 2... Nonwoven fabric layer,
3, 4...pressure sensitive adhesive layer, 5...core film, 6...opening, 7...laminate film,
8... Release film base material.

Claims (1)

[Claims for Utility Model Registration] (1) A hemostatic substrate consisting of a hemostatic substrate made of a large water-retaining tissue, and a film core material coated with an adhesive on the upper and lower surfaces and bonded to the lower surface of the hemostatic substrate; A patch tape for hemostasis, characterized in that an opening of a size corresponding to the area of skin to be protected is formed in the approximate center of the core material, and an adhesive area for the skin surface is formed outside the opening. . (2) The hemostatic patch tape according to claim 1, wherein the hemostatic base material is made of a nonwoven fabric. (3) The hemostatic patch tape according to claim 2, wherein the nonwoven fabric is made of cellulose fibers. (4) The hemostatic patch tape according to claim 2, wherein the hemostatic base material comprises a nonwoven fabric layer and a water-impermeable barrier film layer provided on the top surface of the nonwoven fabric layer.