JP2010063707A - Sheet structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet structure in which a protective sheet or the like is easily peeled and to which a medical device is sanitarily attached. <P>SOLUTION: The sheet structure 1 includes a mount 31, a double-sided self-adhesive sheet 25 stuck on the mount, and the protective sheet 11 stuck to the upper surface of the double-sided self-adhesive sheet. The double-sided self-adhesive sheet 25 is provided with tabs 23a and 23b extended from a part of the peripheral edge, and the protective sheet 11 is provided with tabs 13a and 13b which are formed larger than the tabs 23a and 23b of the double-sided self-adhesive sheet and cover the whole of the tabs 23a and 23b. In a state in which the protective sheet 11 is stuck on the double-sided self-adhesive sheet 25, the tabs 13a and 13b of the protective sheet are extended more to the outer side than the tabs 23a and 23b of the double-sided self-adhesive sheet, and the extension parts 37 and 37 of the mount are extended more to the outer side than the tabs 13a and 13b of the protective sheet. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sheet structure in which a protective sheet or the like is attached to a double-sided pressure-sensitive adhesive sheet for attaching a medical device to a patient's skin surface. In particular, the protective device is easily peeled off, and the medical device is attached hygienically. The present invention relates to a sheet structure that can be used.

At present, CT (Computed Tomography) scanner, MRI (Magnetic Resonance Imaging) apparatus, PET (Positron) as medical diagnostic imaging equipment.
Emission Tomography) devices are known. When using such an imaging apparatus, a patient may be injected with a contrast medium, physiological saline, or the like (hereinafter also simply referred to as “medical solution”). Various chemical injection devices that automatically execute this injection have also been put into practical use.

By the way, when injecting a drug solution with a drug solution injection device, there is a possibility that the injection needle is detached from the blood vessel and the contrast medium leaks subcutaneously (also called extravasation).
Therefore, the present applicant has proposed a sensor unit for detecting extravasation of a contrast medium in Patent Document 1, for example. The sensor unit is configured in a small box shape, for example, is attached so as to cover a portion where the injection needle of the patient's arm is stabbed, and detects leakage of the drug solution. The sensor unit is configured to be able to perform wireless communication with the main body, and wirelessly sends detection result data to the main body. The main body can determine the presence or absence of leakage of the chemical liquid based on the detection result from the sensor unit.

A double-sided PSA sheet is used to attach the sensor unit as described above to the patient's skin surface. This double-sided pressure-sensitive adhesive sheet is used after peeling off protective sheets stretched on both upper and lower surfaces.
International Publication No. 2007/046460

  Even in the configuration of Patent Document 1, a device for facilitating the removal of the protective sheet has been made and practically sufficient, but there is still room for further improvement. Then, the objective of this invention is providing the sheet | seat structure which can peel off a protection sheet etc. easily and can attach a medical device hygienically.

The sheet structure of the present invention that solves the above problems is
Mount and
A double-sided pressure-sensitive adhesive sheet for attaching a medical device to the patient's skin surface, affixed on the mount;
A protective sheet attached to the upper surface of the double-sided pressure-sensitive adhesive sheet;
A seat structure comprising:
The double-sided pressure-sensitive adhesive sheet has a tab extending from a part of the periphery thereof,
The protective sheet has a tab that is formed larger than the tab of the double-sided pressure-sensitive adhesive sheet and covers the entire tab,
With the protective sheet pasted on the double-sided pressure-sensitive adhesive sheet,
The tab of the protective sheet extends outward from the tab of the double-sided pressure-sensitive adhesive sheet, and a part of the mount extends outward from the tab of the protective sheet.

  The double-sided pressure-sensitive adhesive sheet configured as described above can be used, for example, by first peeling the mount and then peeling the protective sheet. According to the sheet structure of the present invention, in the vicinity of the tab of the double-sided pressure-sensitive adhesive sheet, the tab of the protective film extends outward from the tab, and a part of the mount extends further than the tab of the protective film. That is, since a part of the mount extends to the outermost side, when the mount is peeled off, the extended portion can be picked and easily peeled off. After peeling the mount, the tab of the protective film extends outward from the tab of the double-sided pressure-sensitive adhesive sheet. Therefore, when peeling off the protective sheet, the tab can be picked and peeled off easily. According to the configuration of the present embodiment, as described above, it is possible to remove the sheet by picking tabs and the like extending outward, and it is not necessary to touch the adhesive surface of the double-sided pressure-sensitive adhesive sheet. be able to.

  In the sheet structure of the present invention, the shape of the tab of the double-sided pressure-sensitive adhesive sheet, the shape of the tab of the protective sheet, and the shape of the extending portion of the mount may all be semicircular. One tab of the adhesive double-sided sheet may be formed on each of the left and right sides of the sheet.

Specifically, the sheet structure of the present invention includes:
The mount is divided into two based on the center of the double-sided pressure-sensitive adhesive sheet,
One mount is formed with a protruding portion extending toward the other mount,
The other mount is formed with a recess cut out in a shape complementary to the shape of the protruding portion.

  The double-sided pressure-sensitive adhesive sheet may be horizontally long, and each long side portion may be gently curved so as to be concave toward the sheet center. In this case, even if the arm is bent, the edge of the sheet is hardly turned over, and the sheet can be prevented from peeling off.

  The double-sided pressure-sensitive adhesive sheet may be provided with a display indicating a position where the medical device is attached. In this case, it is preferable that the protective sheet is transparent so that the display can be visually recognized.

  As described above, according to the present invention, it is possible to provide a sheet structure in which a protective sheet or the like can be easily peeled off and a medical device can be attached hygienically.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an example of use of a double-sided PSA sheet.

As shown in FIG. 1, this double-sided pressure-sensitive adhesive sheet 25 is used, for example, to fix a sensor unit 401 to a patient's arm. In this example, the tip of the injection needle 230 is inserted into a blood vessel (not shown) of the patient's arm, and the double-sided adhesive sheet 25 is attached from above so as to cover the insertion portion and a part of the needle 230. .
The injection needle 230 is connected to a syringe (not shown) via a chemical liquid tube 231, whereby the chemical liquid in the syringe is supplied to the patient.

  Since the sensor unit 401 has a known configuration described in Patent Document 1, a detailed description thereof will be omitted. As an example, the sensor unit 401 includes a light emitting diode and a phototransistor (not shown) housed in a box-shaped housing. ing. If the tip of the needle 230 is removed from the blood vessel and the contrast medium leaks subcutaneously, the intensity of light emitted from the light emitting diode and reflected back inside the arm greatly changes. By detecting this change with a phototransistor and determining whether or not the intensity of the reflected light is below a predetermined threshold based on the result, it is possible to know whether or not the chemical liquid has leaked.

  Next, the sheet structure 1 in which a protective sheet or the like is attached to the double-sided pressure-sensitive adhesive sheet 25 will be described with reference to FIGS. FIG. 2 is a perspective view showing the configuration of the sheet structure of the present embodiment. FIG. 3 is a plan view of the sheet structure of FIG.

  As shown in FIG. 2, the sheet structure 1 of the present embodiment includes a mount (31 </ b> A, 31 </ b> B) 31 divided into two, a double-sided pressure-sensitive adhesive sheet 25 that is stuck and held on the mount 31, And a protective sheet 11 attached to the upper surface of the pressure-sensitive adhesive sheet 25.

As shown in FIG. 4, the double-sided pressure-sensitive adhesive sheet 25 has a slightly horizontally long substantially rectangular shape. Semicircular tabs 23a and 23b are formed on both the left and right sides.
Although illustration is omitted, the double-sided pressure-sensitive adhesive sheet 25 is obtained by forming a pressure-sensitive adhesive layer (transparent) on both surfaces of a flexible transparent resin sheet material. The adhesive layer is formed on the entire upper and lower surfaces of the sheet material excluding the tabs 23a and 23b (see the shaded portion in FIG. 4).

  As shown in FIG. 1, the double-sided pressure-sensitive adhesive sheet 25 is affixed to the skin surface so that the extending direction of the tabs 23a and 23b and the circumferential direction of the arm coincide. As shown in FIG. 4, the long side portions 24a and 24b of the double-sided pressure-sensitive adhesive sheet 25 are gently curved so as to be concave toward the sheet center. When such a curve is provided, even if the arm is bent in a state where the sheet 25 is attached (see FIG. 1), the edge of the sheet is difficult to turn and the sheet can be prevented from peeling off.

As shown in FIGS. 2 and 5, the mount 31 is formed in a horizontally long shape as a whole, and has a substantially rectangular support region 33 to which the lower surface of the double-sided adhesive sheet 25 is attached, and semicircular extensions on both sides thereof. It is divided into parts 37 and 37.
The mount 31 is divided in half from the middle (in half with respect to the center of the double-sided pressure-sensitive adhesive sheet) so that it can be easily peeled off during use. One mount 31B is formed with a protruding portion 38 extending toward the other mount 31A, and the other mount 31A is cut out in a shape complementary to the shape of the extending portion 38. A recess 39 is formed. The protrusion 38 has a semicircular shape, and its center is located at the center of the mount 31.

  The material of the mount is not particularly limited, and may be a coated paper or a resin sheet. Further, the color of the mount is not particularly limited, and may be transparent or opaque.

  As shown in FIG. 6, the protective sheet 11 has substantially the same shape as the double-sided pressure-sensitive adhesive sheet 25 (only the size of the tabs is different), and is a semicircular shape that is slightly larger than the tabs 23 a and 23 b of the double-sided pressure-sensitive adhesive sheet 25. It has tabs 13a and 13b. The protective sheet 11 is transparent as an example.

  In a state where the double-sided pressure-sensitive adhesive sheet 25 is held on the mount 31 and the protective film 11 is stuck on the double-sided pressure-sensitive adhesive sheet 25, as shown in FIG. 3, the tab 23 a of the double-sided pressure-sensitive adhesive sheet 25 and the tab of the protective sheet 11. 13a and the extending portion 37 of the mount are arranged in a concentric circle (the same applies to the tab 23b on the opposite side). The tab 13a of the protective sheet 11 extends outward from the tab 23a of the double-sided pressure-sensitive adhesive sheet, and the mount extending portion 37 extends outward from the tab 13a of the protective sheet 11.

  As can be seen from FIG. 3, the upper and lower adhesive surfaces of the double-sided adhesive sheet 25 are completely covered by the protective sheet 11 and the mount 31. Further, the tabs 23a and 23b of the double-sided pressure-sensitive adhesive sheet 25 are sandwiched from above and below by the extending portions 37 and 37 of the mount and the tabs 13a and 13b of the protective sheet 11, respectively. Since the extending portions 37 and 37 and the tabs 13a and 13b of the sheet 11 are larger than the tabs 23a and 23b of the double-sided pressure-sensitive adhesive sheet 25, these tabs 23a and 23b are not exposed to the outside.

Next, a method for using the sheet structure configured as described above will be described.
Note that the following procedure is an example, and there is no particular limitation on the order in which the protective sheet and the backing sheet are peeled off, and the position where peeling is started.

  First, a sheet structure 1 as shown in FIG. 3 is prepared. As shown in FIG. 1, the tip of the injection needle 230 has already been inserted into the blood vessel of the patient's arm.

  Next, both ends of the sheet structure 1 are picked with both hands, and the entire sheet is bent into a V shape so that the center of the sheet becomes a valley in order to peel the mount 31. As an example, the protrusion 38 of the mount 31 </ b> B is peeled off from the lower surface of the double-sided pressure-sensitive adhesive sheet 25 when the whole is bent by approximately 90 °. Since the peeled extending portion 38 extends in parallel with the mount 31B, the mount 31B can be peeled off by grasping the extending portion 38. According to such a configuration, the mount can be peeled off without touching the lower surface of the sheet 25, which is hygienic.

  Next, the remaining mount 31A is peeled off. The method of peeling the mount 31A is not particularly limited, but the extending portion 37 may be picked and peeled off from the outside. As shown in FIG. 3, in this embodiment, since the extending portion 37 of the mount extends outwardly from the tab 13 a of the protective film, the extending portion 37 can be easily picked.

When the two mounts 31A and 31B are peeled off by the above process, the double-sided pressure-sensitive adhesive sheet 25 with the protective film 11 attached is applied from above so as to cover the injection needle 230 stuck in the patient's arm as shown in FIG. paste. Thereby, the needle 230 is fixed to the patient's arm. The double-sided pressure-sensitive adhesive sheet 25 may be attached to the patient's arm with one of the mounts peeled off or with each mount 31A, 31B being peeled to some extent, and then the mount is completely peeled off.
In addition, since adhesiveness is not provided to the tabs 23a and 23b of the double-sided pressure-sensitive adhesive sheet 25, the tabs do not stick to the skin, and the tip side is slightly lifted from the skin surface.

  Next, the protective film 11 is peeled off. Here, since the tabs 13a and 13b of the protective film 11 are formed larger than the tabs 23a and 23b of the double-sided pressure-sensitive adhesive sheet 25, the tabs 13a and 13b can be easily picked, and thus the protective sheet 11 can be easily peeled off. Can do. By peeling off the protective film 11, the upper surface of the double-sided pressure-sensitive adhesive sheet 25 is exposed.

  Next, the sensor unit 401 is attached to the exposed adhesive surface from above. As a result, the sensor unit 401 is positioned and fixed with respect to the insertion portion of the injection needle 230, and the leakage of the contrast agent can be detected.

  As described above, according to the configuration of the present embodiment, the mount 31 can be easily peeled off, and the protective film 11 can be easily peeled off. The reason why the mount 31 is easily peeled off is that the extending portion 37 of the mount extends beyond the tabs of other sheets. Another reason is that the mount 31 is divided into two parts, and when the entire sheet 1 is bent to some extent, the end of one or both mounts is partially separated from the lower surface of the double-sided adhesive sheet 25 near the boundary between the mounts 31A and 31B. This is because it is peeled off and the mounts 31A and 31B can be peeled off.

  When the double-sided pressure-sensitive adhesive sheet 25 is peeled off from the patient's arm after the contrast medium has been injected, according to the present embodiment, the tabs 23a and 23b of the sheet 25 can be picked and peeled off. In particular, when the double-sided pressure-sensitive adhesive sheet 25 is attached as shown in FIG. 1, the tips of the tabs 23a and 23b are slightly lifted from the skin surface, so that the tabs 23a and 23b can be easily picked. Since the tabs 23a and 23b are formed on both sides, the sheet 25 can be peeled off from either the left or right side.

The present invention is not limited to the above, and various modifications can be made.
For example, the mount 31 may be composed of a single sheet that is not divided. Moreover, it is good also as a linear form, without providing a curve in the long side part of the double-sided adhesive sheet 25. FIG. Further, the number of tabs of the double-sided pressure-sensitive adhesive sheet 25 is not limited to two, and may be one or three or more. The outline shape of the tab is not limited to a semicircular shape, and may be a rectangle or a polygon.

As shown in FIG. 7, the double-sided pressure-sensitive adhesive sheet 125 may be provided with a display that indicates the position where the unit 401 (see FIG. 1) is attached. In this example, a ring-shaped indicator 128 is displayed near the center of the sheet 125, and line indicators 128a to 128d indicating the vertical direction and the horizontal direction are displayed at four locations on the outer periphery thereof.
A mark 129a representing the heart is attached to the upper left corner of the sheet 125. This means that the sheet 125 should be affixed with the side marked with this mark as the side close to the heart. Similarly, a mark 129 b representing a hand is attached to the lower right corner of the sheet 125.

  According to such a configuration, alignment with the injection needle 230 (see FIG. 1) can be performed using the ring-shaped indicator 128 and the line indicators 128a to 128d. Therefore, the double-sided pressure-sensitive adhesive sheet 125 can be attached at an accurate position. When the protective sheet 11 is transparent, when the double-sided pressure-sensitive adhesive sheet 125 with the protective sheet 11 attached is pasted, the display 128 and the like can be visually observed through the protective sheet 11, so that the sheet 125 is aligned well. be able to.

It is a perspective view which shows the usage example of a double-sided adhesive sheet. It is a perspective view which shows the structure of the sheet | seat structure of this embodiment. FIG. 3 is a plan view of the sheet structure of FIG. 2. It is a top view of a double-sided adhesive sheet. It is a top view of a mount. It is a top view of a protection sheet. It is a figure which shows the example of the display with which the double-sided adhesive sheet was attached.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet structure 11 Protection sheet 13a, 13b Tab 25 Double-sided adhesive sheet 23a, 23b Tab 24a, 24b Long side part 31 Mount 33 Support area 37 Extension part 38 Projection part 39 Concave part 230 Injection needle 401 Sensor unit

Claims (6)

Mount and
A double-sided pressure-sensitive adhesive sheet for attaching a medical device to the patient's skin surface, affixed on the mount;
A protective sheet attached to the upper surface of the double-sided pressure-sensitive adhesive sheet;
A seat structure comprising:
The double-sided pressure-sensitive adhesive sheet has a tab extending from a part of the periphery thereof,
The protective sheet is formed larger than the tab of the double-sided pressure-sensitive adhesive sheet, and has a tab that covers the entire tab.
In a state where the protective sheet is stuck on the double-sided pressure-sensitive adhesive sheet, the tab of the protective sheet extends outside the tab of the double-sided pressure-sensitive adhesive sheet, and a part of the mount is outside the tab of the protective sheet. A sheet structure extending to the surface. Tab shape of the double-sided pressure-sensitive adhesive sheet,
The shape of the tab of the protective sheet; and
The sheet structure according to claim 1, wherein each of the extending portions of the mount has a semicircular shape.   The sheet structure according to claim 1 or 2, wherein one tab of the adhesive double-sided sheet is formed on each of the left and right sides of the sheet. The mount is divided into two based on the center of the double-sided pressure-sensitive adhesive sheet,
One mount is formed with a protruding portion extending toward the other mount,
On the other mount, a recess cut out in a shape complementary to the shape of the protruding portion is formed,
The sheet structure according to any one of claims 1 to 3.   The sheet structure according to any one of claims 1 to 4, wherein the double-sided pressure-sensitive adhesive sheet is horizontally long, and each long side portion is gently curved so as to be concave toward the sheet center.   The said double-sided adhesive sheet is attached | subjected with the display which shows the sticking position of the said medical device, and the said protective sheet is transparent so that this display can be visually recognized. Sheet structure.

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