JPH02126842A - Covering material for skin used in surgery - Google Patents

Abstract

PURPOSE:To prevent bacterial existing in objects around a surgery portion that are not yet sterilized from entering into the surgery portion or a portion to be pricked, etc., by forming on the lower face of a flexible and transparent covering film a layer of pressure sensitive adhesives having a released paper thereon, and providing an outwardly-extending covering cloth on the side edge of the layer. CONSTITUTION:A covering film 2 which is make of a polyurethane film, etc., with flexibility, expandablity, adaptablity to its sticking face, and proper moisture-permeability, is temporarily stuck to the lower face of a transparent or semi-transparent supporting film 1 of polyester, polypropylene and the like having proper transperency and required stiffness, and the lower face of the covering film is provided with a layer 3 of pressure sensitive adhesives of natural rubber, acrylic or silicon, etc., on which layer a releasable paper 4 is stuck for forming the main body 5 of a covering material. An opening 7 for surgery is provided when needed in a required position in the main body 5 of the covering material and also a covering cloth 6 of required size that extends outwards is provided on either or both of the side edges of the main body of the covering material. The covering cloth 6 uses flexible nonwoven fabric and a plastic film of polyethylene, polypropylene and the like, while its size, together with that of the main body of the covering material, is selected according to portions where surgery is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a surgical skin covering material that is applied to a surgical site during surgical procedures such as surgery and local anesthesia.

[Prior art]

Conventionally, in order to protect the sterilized skin surface during surgery, etc., an adhesive layer is placed on a thin, transparent and flexible film such as plastic film, and an adhesive layer that adapts well to the skin surface and has excellent adhesion. A drug-containing dressing is used, but this dressing is only attached to the skin surface of the patient's treatment area, and the outside of the applied dressing is contaminated with bacteria and can be left on the patient's clothes. , futons, sheets, and other unsterilized items are exposed, and there is a risk that the doctor's (practitioner's) hands may come into contact with them during surgery, and their sterilized hands may get dirty.

[Problem to be solved by the invention]

In view of the above-mentioned drawbacks, the inventor first temporarily attached a flexible, stretchable and highly adhesive covering film to the lower surface of a support film such as a polyester film, and then applied an adhesive layer to the surface of the covering film. For use in treatments to improve skin covering materials such as skin covering materials with release paper pasted on the adhesive layer, and to prevent bacterial infection during nerve blocks such as epidural anesthesia and other surgical procedures. The purpose is to provide an effective skin covering material.

[Means to solve the problem]

The present invention is directed to the lower surface of a support film (1) made of a plastic film that is transparent or translucent, has appropriate transparency, and has a required stiffness, such as polyester, polypropylene, polyamide, cellulose acetate, or a layer thereof. With or without a temporary adhesion layer (9) of a weak adhesive or removable adhesive, it is flexible and stretchable, has good adaptability to the surface to which it is applied, is transparent, and has appropriate moisture permeability. A covering film (2) made of polyurethane film, polyamide film, etc. having A release paper (4) is pasted to form a covering material main body (5). In some cases, the coating material body may be formed without providing the support film.

The thickness of the support film and the coating film constituting the main body of the coating material is approximately 70~/θθμ for the former, and approximately 70~/θθμ for the latter.
In many cases, it may be about Sθμ.

In addition to the above-mentioned covering films, non-moisture-permeable ones such as polyvinylidene chloride film and polyvinyl chloride film can also be used by providing the required moisture permeability (by providing micropores, etc.). In addition, these resin film-forming raw material liquids prepared in a specified manner are cast onto the required surface of the support film (1) to a specified film thickness, and for example, in the case of polyurethane, the resin film-forming raw material liquid is cast at a rate of approximately It may be formed by drying at θ°C.

The adhesive strength between the above-mentioned layers constituting the main body of the covering material is greatest between the coating film and the adhesive layer, and when the support film has a temporary adhesive layer, the adhesive force between the support film and the temporary adhesive layer, and between the temporary adhesive layer and the covering film. It is preferable that the distance between the pressure-sensitive adhesive layer and the release paper decreases in this order. It is preferable to provide a cutting line (4a) on the release paper so that it can be divided into two or more parts and peeled off.

The dressing body (5) is provided with openings (7) of a required size at required locations as necessary. This opening can be made to a size necessary for the treatment, and can be formed at an appropriate location where the treatment operation is easy and does not interfere with disinfection or the like.

Further, on one or both of the opposing side edges (8) of the covering material main body, a covering fabric (6>) of a required size extending outward is provided. The cloth has side edges (8) where the covering film (2) is extended together with the adhesive layer (3).
) through its adhesive layer.

The covering fabric is made of a flexible non-woven fabric, a plastic film such as polyethylene or polypropylene, etc. If two covers are provided on both sides, they may be made of the same material or different materials such as a non-woven fabric and a plastic film. The size of the covering material as well as the main body of the covering material can be appropriately selected depending on the treatment area and the like. Further, the covering fabric can be made breathable or non-breathable, liquid-impermeable, etc., as required.

〔Example〕

Examples will be described with reference to the drawings.

In Figures 7 to λ, length: 700 m x width: 320 m5
A polyester film (1) with a thickness of 3♂μ is overlaid with a polyurethane film (2) of the same size and 25μ thick with microscopic micropores, and an acrylic resin adhesive layer (3) is applied to the surface of the polyurethane film with a thickness of 30μ. On top of that, put release paper (4) with a width of 26o111+ on both side edges (8
) to create a covering material body (5) by leaving an exposed layer (3a) of adhesive of approximately 30 mm, and apply a 700 mm length of adhesive on this exposed layer.
am x width j00wm flexible non-woven covering fabric 1
61 are pasted together via their edges, and an opening (long diameter 130 wm x short axis 10θ) is provided in the center of the covering material body.
7) and a surgical skin dressing material having slits (cut lines) (4a) on the release paper is shown.

This covering material is effective for blocking nerves by inserting a puncture needle and injecting a drug solution during epidural anesthesia, for example, and is disposable. In addition, surgical operations other than the above anesthesia (=
It can also be formed to the same or different dimensions and used in the same way.

In the above example, a non-woven covering cloth was provided on both sides of the edges, but it is also possible to use a non-woven fabric on one side edge and a plastic film such as polyethylene on the other side edge. It can be used in the same way even if it is installed in

FIG. 3 shows a covering material body (1) constructed in substantially the same manner as in FIGS. 7 to 2, with a covering cloth extending over one of the opposing side edges. This covering material can also be used in substantially the same manner as that shown in FIGS. 1 and 2 above.

These surgical skin dressings are placed in sterilization bags and sterilized with gas before being sold commercially. The bag described above preferably has good transparency.

[Effect]

To use the surgical skin dressing of the present invention, part of the release paper is peeled off to expose a part of the adhesive layer, and if the covering is only on one side, the covering is attached to the skin of the treatment area. An unsterilized object (e.g. patient's clothes, etc.) whose opening (7) on the surface is located in the patient's body (needle, incision, etc.) and whose covering is surrounding
Place a portion of the main body of the covering material through the exposed adhesive layer, positioning it so that the entire covering material can be applied as desired, such as covering an object that has germs such as a futon or sheet. Paste it, then peel off the remaining release paper and paste the entire covering material. The covering cloth is then spread out to cover the desired area around it, and the support film is peeled off or left as is. In this way, you can prepare for the surgery,
A required treatment is performed in the opening.

〔Effect of the invention〕

As described above, the surgical skin dressing of the present invention has a continuous covering and is sterilized together with the main body of the dressing. Even if the operator's (doctor's) hands touch them during surgery, they will not be contaminated with bacteria, etc., and bacteria present in unsterilized objects around the surgical area will be removed from the surgical area, needle area, etc. There is absolutely no fear of intrusion. Furthermore, if the covering fabric (at least one of them) is made of a transparent plastic film or the like, the main body of the covering material can be seen through when the covering material is applied, making positioning easier. Furthermore, when applying a coating film to the skin surface, which is difficult to apply, there is no possibility of wrinkles or adhesive layers adhering to each other, and combined with transparency, it is easy and quick to apply the coating film under close observation. Can be done.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention; FIG. 7 is a plan view, FIG. 2 is a cross-sectional view, and FIG. 3 is a cross-sectional view showing a modified example. (1) is a support film, (2) is a covering film, (3
) is the adhesive layer, (4) is the release paper, (5) is the covering material body,
(6) is the covering cloth, and (7) is the opening. Figure 3

Claims (1)

[Claims] 1. An adhesive layer having a release paper is provided on the lower surface of a transparent coating film that is flexible and has good adaptability to the surface to which it is applied, to form a coating material body, and the coating material body has one side. A surgical skin dressing comprising a covering fabric extending outward on at least one opposing side edge. 2. A transparent coating film that is flexible and stretchable and has good adaptability to the application surface is layered on the lower surface of the support film, and an adhesive layer with release paper pasted is provided on the lower surface of the coating film to form the coating material body. 1. A skin dressing for treatment, which has an opening for treatment in the dressing main body, and a covering cloth extending outward on at least one opposing side edge. 3. The surgical skin dressing according to claim 1 or 2, wherein the covering cloth is provided on one opposing edge of the dressing main body. 4. The surgical skin covering material according to claim 1, 2 or 3, wherein the covering fabric is a nonwoven fabric or a plastic film. 5. The surgical skin dressing according to claim 3, wherein one of the covering fabrics provided on one opposing edge of the dressing body is a nonwoven fabric and the other is a plastic film.