JPS6126324Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved test tool for testing the suitability of drugs, cosmetics, etc. on the skin (patch test). While preventing the harmful effects of sweat and glue from adhesive tape, which wicks more,
This invention relates to an improved test tool for skin suitability testing.

Many devices have been proposed as skin suitability test tools. For example, a piece of porous sheet for impregnating the test sample may be applied directly to the adhesive tape, or the piece of porous sheet may be covered with a thin plastic film having a circular hole in the center. However, when these types of test tools are used, there is a risk that the glue from the adhesive tape may dissolve and mix into the test sample, adding to the effect of the adhesive on the skin of the test sample. Sweat emitted from the skin may also contaminate the test sample.

In order to prevent the above-mentioned drawbacks, a test in which a liquid-impermeable thin film, for example aluminum foil, was applied to an adhesive sheet, and on this aluminum foil a piece of porous sheet for impregnating the test sample was applied with adhesive. 〓〓〓〓
A tool has been devised. However, even with this test tool, there is a drawback that the adhesive dissolves and mixes into the test sample, and sweat emitted from the skin flows through the aluminum foil and mixes into the test sample. A test tool is also known in which a polyethylene sheet is laminated onto aluminum foil, and a porous sheet piece for impregnating a test sample is melt-bonded onto the polyethylene sheet. However, this test device also has the disadvantage that sweat emanating from the skin travels through the polyethylene-aluminum laminate and mixes into the test sample. Therefore, a test tool has been proposed in which a liquid-impermeable thin plate, for example, an aluminum thin plate, is attached to an adhesive sheet for accommodating a porous sheet piece. This test tool prevents the adhesive from mixing with the test sample, but since the adhesive sheet around the thin plate comes into contact with the skin, it is difficult to clearly distinguish between the influence of the test sample and the influence of the adhesive sheet. It may become impossible to distinguish between the two.

The inventor of the present invention previously solved the above-mentioned drawbacks of conventional test tools in the invention of Utility Model Application No. 52-006243, and completely prevented the influence of the adhesive sheet and the inflow of sweat, allowing only the skin of the sample to be tested. We have devised a skin compatibility testing tool for chemicals that can test the effects on skin. However, in this test tool devised by the previous application, although the thin plate can accommodate the porous sheet for testing, it cannot hold it fixedly.
When applying the test device to the skin, the porous sheet
It often had the disadvantage of detaching from the thin plate.

Therefore, the purpose of the present invention is to eliminate the drawbacks of the conventional test equipment and the above-mentioned drawbacks of the previous application, completely prevent the influence of the adhesive sheet and the inflow of sweat, and apply it to the skin of the test sample only. The object of the present invention is to provide a skin suitability test tool for drugs that can accurately test the effects on the skin.

The drug skin suitability testing device of the present invention has a recess space 3 defined by a bottom and an edge, and a porous sheet piece for impregnating or applying a test sample is housed in this recess. A thin plate 1, a water-absorbent protective sheet 5 having a hole for fitting the thin plate, and one side of which is adhesive and can be adhered to the thin plate and the back side of the protective sheet. an adhesive sheet 7, the thin plate has a protrusion extending inward from the edge of the recess space, and between the bottom and the protrusion,
It is characterized in that the peripheral portion of the porous sheet can be held.

The test tool of the present invention will be explained below with reference to the embodiments shown in FIGS. 1 to 6. In Figures 1 to 3, reference number 1 indicates a liquid-impermeable test sample (drug, drug, etc.).
The thin plate is made of a material that is stable for cosmetics, such as aluminum,
Other metals or synthetic resins (polyester,
It is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene), etc.

The thin plate 1 has a recessed space 3 defined by a bottom 1a and an edge 1b, in which a porous sheet piece 4 impregnated or coated with a liquid test sample can be accommodated. ing. A protrusion 2 extends from the edge 1b of the thin plate 1 toward the inside of the recess 3, and between the protrusion 2 and the bottom 1a,
The peripheral portion of the porous sheet piece 4 can be clamped. Therefore, even if the thin plate is turned downward as shown in FIG. 1, the porous sheet piece 4 will not come off from the recess 3.

FIG. 2 shows a protective sheet 5, which is made of a gas-permeable and water-absorbing material, e.g.
It is made from paper, cotton, cloth, sponge, and foamed plastic. The protective sheet 5 has a punching hole 6, and when the thin plate 1 is fitted into the punching hole 6, the circumference of the thin plate 1 is preferably 1 mm or more by the protective sheet 5, as shown in FIG. It becomes surrounded by the width of Although the protective sheet shown in FIG. 2 has two punch holes 6, there may be only one punch hole, or there may be three or more punch holes.

As shown in FIG. 1, a thin plate 1 containing a porous sheet 4 is placed on the skin 8 so that the porous sheet piece is in contact with the skin 8, and the punch holes 6 of the protective sheet 5 are inserted into the thin plate 1. 1, and apply the adhesive side of the adhesive sheet 7 having a larger surface area than the protective sheet 5 to the back surfaces of the thin plate 1 and the protective sheet 5, and apply the peripheral part protruding from the protective sheet 5 directly to the skin. Glue. In advance, the adhesive sheet 7 is attached to the back side of the fitted body of the thin plate containing the porous sheet and the protective sheet.
Glue it to the adhesive side of the thin plate and protective sheet,
〓〓〓〓
The three adhesive sheets may be applied to the skin at the same time.

The tip of the projection 2 of the thin plate 1 is preferably rounded in a U-shape and extends inside the recess as shown in Figures 1 and 3. Therefore, even when the thin plate 1 is pressed against the skin, the protrusion 2 can seal the recess space for storing the test sample on the skin without directly stimulating the skin. Furthermore, since the contact area between the skin and the test sample can be limited to the area of the thin plate, the test area of the skin will not get stuffy or get a rash due to sweat. The protective sheet 5 protects the skin around the thin plate 1 from the adhesive of the adhesive tape, and since it is made of a material with excellent water absorption, it absorbs sweat generated on the skin in contact with the test equipment. Not only that, even if the test sample leaks from the thin plate, it can be absorbed immediately. Therefore, it is possible to prevent a reaction from occurring on an undesired part of the skin due to the sample leaking from the thin plate 1. By providing two or more punch holes 6 in the protective sheet 5 at predetermined intervals (see Figure 2), it is possible to simultaneously conduct tests on multiple test samples under the same conditions. .

In the thin plate 1 shown in FIG. 4, the center portion of the bottom portion 1a protrudes into the recessed space 3 to securely hold the porous sheet 4, and to securely hold the porous sheet 4.
contact with the skin can be ensured.

In the thin plate 1 shown in FIG. 5, an edge 1b extends outward from the recess 3 in a U-shape, and a protrusion 2 extends inside the recess 3 from the edge 1b. By doing so, complete sealing of the recessed space containing the test sample on the skin becomes more reliable.

The thin plate and the protrusion may be integrally formed, or the member 9 having the protrusion 2 may be fitted onto the edge 1b of the thin plate as shown in FIG. They may be bonded together or glued together.

If the test sample is a viscous dough, powder, or semi-solid, the thin plate 1 is used without using a porous sheet piece.
It is also possible to fill the recess 3 directly and apply it on the skin.

By using the test tool of the present invention, skin suitability tests for drugs, cosmetics, etc. can be carried out extremely accurately.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional explanatory view of one embodiment of the skin-friendly device of the present invention applied to the skin;
The figure is a perspective view of a protective sheet that can accommodate two thin plates, Figure 3 is a partial cross-sectional view of a thin plate holding a porous sheet piece fixedly held, and Figures 4 to 6 are a perspective view of a thin plate. FIG. 7 is a cross-sectional explanatory diagram showing another embodiment. 1...Thin plate, 2...Protrusion, 3...Recess, 4...
... Porous sheet piece, 5 ... Protective sheet, 6 ... Punch hole, 7 ... Adhesive sheet, 8 ... Skin, 1a ...
Bottom, 1b...Edge, 9...Protrusion member. 〓〓〓〓

Claims (1)

[Claims for Utility Model Registration] 1. A thin film having a recessed space 3 defined by a bottom and an edge, in which a porous sheet piece for impregnating or applying a test sample is housed. A plate 1, a water-absorbent protective sheet 5 having a hole for fitting the thin plate into it, and an adhesive sheet that has adhesive on one side and can be adhered to the back side of the thin plate and the protective sheet. 7, the thin plate has a protrusion extending from an edge thereof toward the inside of the recessed space, and the porous sheet piece is disposed between the bottom and the protrusion. An improved skin suitability test tool for drugs, characterized in that it can clamp the peripheral area. 2. The test tool according to claim 1 of the utility model registration claim, wherein the protective sheet 5 is made of at least one of paper, cotton, cloth, sponge, and foamed plastic. 3. In the statement of claim 1 of the utility model registration claim, the porous sheet piece 4 is made of at least one of paper, cotton, cloth, sponge, and foamed plastic.
Test equipment formed by seeds. 4. The test tool according to claim 1, wherein the thin plate is made of metal or synthetic resin. 5 Utility Model Registration The test tool as set forth in claim 1, in which the tip of the projection 2 of the thin plate 1 extends out in a rounded U-shape. 6. The test tool according to claim 1 of the utility model registration, wherein the protective sheet 5 has a width of 1 mm or more and surrounds the thin plate. 7. The test tool according to claim 1, wherein a portion of the bottom of the thin plate protrudes toward the recess.