Catheter Fixation Device

Abstract

To provide a catheter fixing tool which reduces a burden on a body surface in fixing a catheter and can reliably and securely fix the catheter.SOLUTION: A catheter fixing tool includes a first member having a first base part for fixing at least a part of a catheter and a second member having a second base part for fixing at least a part of the catheter. The first base part has an upper surface and a bottom surface, and is provided with an adhesive layer for covering at least a part of the upper surface and the bottom surface of the first base part. The second base part has an upper surface and a bottom surface, and is provided with an adhesive layer for covering at least a part of the bottom surface of the second base part. In fixing the catheter, the first member is stuck on a body surface with the adhesive layer of the bottom surface of the first base part, and the first member and the second member are bonded to each other with the adhesive layer of the upper surface of the first base part and the adhesive layer of the bottom surface of the second base part in a manner to sandwich at least a part of the catheter.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a catheter fixing device for fixing a catheter such as a tube, cannula, drain, etc. (hereinafter simply referred to as a catheter) to be inserted into the body, to the body surface. [Background technology]

[0002] In the medical field, catheters are placed in the body for the purposes of drug administration, nutritional management, drainage of bodily fluids, monitoring, etc. This type of catheter may be left in place for several hours to several days depending on the intended treatment. In this case, it is necessary to securely fix the catheter in a predetermined position on the surface of the body so that it does not fall out of the patient's body or, conversely, is not inserted too far inside the body.

[0003] As a technique for reliably fixing a catheter, for example, Patent Document 1 discloses a catheter fixation patch which has a main body covering the catheter puncture site, a cutout extending from one side edge of the main body towards the centre through which a catheter tube can be inserted, an auxiliary piece provided on the other side edge of the main body via a cutting line, an adhesive layer formed on one surface of the main body and auxiliary piece, the adhesive layer of the auxiliary piece and part of the adhesive layer of the main body adjacent to and beyond the cutting line are covered with auxiliary release paper, and the remaining adhesive layer of the main body is covered with main release paper.

[0004] Patent document 2 also discloses a fixation system comprising a medical article having an elongated body, a stabilizing device having a retainer and an anchor pad, the retainer having a proximal surface, a distal surface, and an upper surface, and a recess and a channel disposed in the retainer, the channel extending from the recess of the retainer to the proximal surface, and at least a portion of the elongated body is disposed in the recess and extends through the channel beyond the proximal surface of the retainer. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2013 / 054420 [Patent Document 2] Special Publication No. 2015-529115 Summary of the Invention [Problem to be solved by the invention]

[0006] Depending on the type of catheter, a part with a complex structure with unevenness may be connected to the part that is fixed to the body surface. When trying to fix such a catheter securely to the body surface, the body surface may be pressed, causing pain. There is also a demand for a catheter fixing device that can fix the catheter to the body surface securely and safely.

[0007] Therefore, an object of the present invention is to provide a catheter fixing device which reduces the burden on the body surface when fixing a catheter and can fix the catheter reliably and safely. [Means for solving the problem]

[0008] The present inventors have found that the above problems can be solved by fixing a catheter to a body surface in such a way that the catheter is sandwiched between adhesive layers of a plurality of members.

[0009] That is, the present invention provides a first member having a first base for securing at least a portion of the catheter; and a second member having a second base portion to which at least a portion of the catheter is fixed, the first base having a top surface and a bottom surface; the first base comprises an adhesive layer covering at least a portion of each of the top surface and the bottom surface of the first base; the second base having a top surface and a bottom surface; the second base comprises an adhesive layer covering at least a portion of the bottom surface of the second base; When the catheter is fixed, The first member is attached to a body surface by the adhesive layer on the bottom surface of the first base, The present invention provides a catheter fixing device, in which the first member and the second member are attached to each other so that at least a portion of the catheter is sandwiched between an adhesive layer on the top surface of the first base and an adhesive layer on the bottom surface of the second base. Effect of the Invention

[0010] The catheter fixing device according to the present invention can reduce the burden on the body surface when fixing the catheter, and can fix the catheter reliably and safely. Note that the effects described here are not necessarily limited, and may be any of the effects described in this specification. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram of a catheter fixing device according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of a first member of the catheter fixing device according to the first embodiment of the present invention. [Diagram 3] FIG. 2 is a schematic diagram of a second member of the catheter fixing device according to the first embodiment of the present invention. [Figure 4] FIG. 4 is a schematic diagram of a third member of the catheter fixing device according to the first embodiment of the present invention. [Diagram 5] FIG. 2 is a schematic diagram showing an example of a method of using the catheter fixture according to the first embodiment of the present invention. [Figure 6] FIG. 2 is a schematic diagram showing an example of a method of using the catheter fixture according to the first embodiment of the present invention. [Figure 7] FIG. 2 is a schematic diagram showing a modified example of the catheter fixing device according to the first embodiment of the present invention. [Figure 8] FIG. 11 is a schematic diagram of a fourth member of the catheter fixing device according to the second embodiment of the present invention. [Figure 9] FIG. 11 is a schematic diagram showing an example of a method of using the catheter fixture according to the second embodiment of the present invention. [Figure 10] FIG. 11 is a schematic diagram showing another example of a method of using the catheter fixing device according to the second embodiment of the present invention. [Figure 11] FIG. 11 is a schematic diagram showing another example of a method of using the catheter fixing device according to the second embodiment of the present invention. [Figure 12] FIG. 11 is a schematic diagram of a second member of the catheter fixing device according to a modified example of the first embodiment of the present invention. [Figure 13] 11A to 11C are schematic diagrams showing an example of a method of using the catheter fixing device according to a modified example of the first embodiment of the present invention. [Figure 14] FIG. 11 is a schematic diagram of a second member of the catheter fixing device according to a modified example of the first embodiment of the present invention. [Figure 15] 11A to 11C are schematic diagrams showing an example of a method of using the catheter fixing device according to a modified example of the first embodiment of the present invention. [Figure 16] FIG. 11 is a schematic diagram of a third member of a catheter fixing device according to a third embodiment of the present invention. [Figure 17] FIG. 11 is a schematic diagram showing an example of a method of using the catheter fixing device according to the third embodiment of the present invention. [Figure 18] FIG. 13 is a schematic diagram of a third member of the catheter fixing device according to a modified example of the third embodiment of the present invention. [Figure 19] FIG. 13 is a schematic diagram showing an example of a method of using the catheter fixing device according to a modified example of the third embodiment of the present invention. [Figure 20] FIG. 13 is a schematic diagram of a fifth member of a catheter fixture according to a fourth embodiment of the present invention. [Figure 21] FIG. 13 is a schematic diagram showing an example of a method of using the catheter fixture according to the fourth embodiment of the present invention. [Figure 22] 13A to 13C are schematic diagrams showing an example of a method of using the catheter fixture according to a modified example of the fourth embodiment of the present invention. [Figure 23] FIG. 13 is a schematic diagram showing a state in which a second member and a sixth member of a catheter fixing device according to a sixth embodiment of the present invention are bonded together. [Figure 24] FIG. 13 is a schematic diagram showing an example of a method of using the catheter fixing device according to the sixth embodiment of the present invention. [Diagram 25] FIG. 13 is a schematic diagram showing an example of a method of using the catheter fixing device according to the sixth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. The embodiments described below are representative examples of the present invention, and do not limit the scope of the present invention. The present invention can also be combined with any of the following embodiments and their modified examples. Unless otherwise specified, in the drawings, "upper" means the upper direction or upper side in the drawing, "lower" means the lower direction or lower side in the drawing, "left" means the left direction or left side in the drawing, and "right" means the right direction or right side in the drawing. In addition, in the drawings, the same or equivalent elements or members are given the same reference numerals, and duplicated explanations are omitted.

[0013] [First embodiment] 1 is a schematic plan view of a catheter fixing device 100 according to a first embodiment of the present invention. The catheter fixing device 100 of this embodiment includes at least a first member 110 and a second member 120. The catheter fixing device 100 may further include a third member 130. Each member will be described below.

[0014] <1. First member 110> FIG. 2(a) is a schematic plan view of the first member 110 (first member 110-1, which is Modification 1 of the first member 110) of this embodiment, and FIG. 2(b) is a schematic cross-sectional view of the first member 110 taken along line A-A' in FIG. 2(a). FIG. 2(c) is a schematic cross-sectional view of the first member 110-1 taken along line A-A' in FIG. 2(a). The first member 110 or 110-1 of this embodiment has a first base 111 for fixing at least a part of the catheter 5. As will be described later, in the first member 110-1, a cushion material 4 is disposed on the first base 111. The first member 110 or 110-1 further has a peripheral portion 112 on the outer periphery of the first base 111 (cushion material 4).

[0015] The size of the first member 110 may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, etc., but it is preferable that the width (left-right direction in FIG. 2(a)) is 2 to 8 cm and the length (up-down direction in FIG. 2(a)) is 2 to 8 cm. From the viewpoint of adapting to the size of the dorsum of the hand LH from infants to adults, it is more preferable that the width is 2.5 to 7.5 cm and the length is 2.5 cm to 7 cm.

[0016] In this specification, the term "width" refers to the length in a direction approximately perpendicular to the catheter puncture direction when the catheter fixing device of the present invention is attached to a body surface, whereas the term "length" refers to the length in a direction approximately parallel to the catheter puncture direction when the catheter fixing device of the present invention is attached to a body surface.

[0017] (1) First base portion 111 and peripheral portion 112 The first base 111 is a portion on which the catheter 5 is placed when the catheter 5 is fixed, and prevents the catheter 5 from pressing against the body surface and causing pain. The first base 111 has an upper surface and a bottom surface, and includes an adhesive layer 31a that covers at least a part of the upper surface of the first base 111, and an adhesive layer 31b that covers at least a part of the bottom surface of the first base 111. The first base 111 may include a first substrate 21 between the adhesive layer 31a and the adhesive layer 31b. In this specification, the term "upper surface" refers to the surface that is located on the opposite side to the body surface when the catheter fixing device of the present invention is attached to the body surface. On the other hand, the term "bottom surface" refers to the surface that is located on the body surface side when the catheter fixing device of the present invention is attached to the body surface.

[0018] The shapes of the first base 111 and the surrounding portion 112 may be appropriately selected depending on the site to which the catheter 5 is fixed. That is, the first base 111 is not limited to being rectangular as shown in Fig. 2(a) and may be, for example, circular, elliptical, triangular, diamond, trapezoidal, etc. Furthermore, the first base 111 may be located at any position within the first member 110 as long as it is a position where at least a part of the catheter 5 can be fixed.

[0019] The size of the first base 111 may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, and the like, but it is preferable that the width is 1 cm or more and the length is 1 cm or more. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 2 cm or more and the length is 2 cm or more.

[0020] (2) First substrate 21 The material of the first substrate 21 is not particularly limited as long as it does not impair the effects of the present invention, and one or more materials that can be used as substrates for general catheter fixtures can be freely selected and used. Specific examples include fiber substrates such as nonwoven fabric, knitted fabric, and woven fabric; plastic substrates; foam substrates made of synthetic resins in which a large number of microbubbles are formed; and paper, and one or more of these substrates can be used in combination. Also, a sheet having a laminated structure in which the same or different types of substrates are laminated may be used.

[0021] When a fiber base material is used as the material of the first base material 21, one or more known fiber materials can be freely selected and used. Specific examples include cellulose fibers such as cotton, viscose rayon, polynosic, cuprammonium rayon, and lyocell; polyester fibers; acrylic fibers; polyamide fibers; polyolefin fibers; polyurethane fibers; vinylon fibers; polyvinyl chloride fibers; and polyvinylidene chloride fibers, and these materials can be used alone or in combination.

[0022] When a plastic base material is used as the material of the first base material 21, one or more of known plastic materials can be freely selected and used. Specifically, examples of such materials include polyurethane, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon 6 and nylon 66, polyolefins such as polyethylene, low-density polyethylene, high-density polyethylene, and polypropylene, olefin-based copolymers such as ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), ethylene-methyl acrylate copolymer (EMA), ethylene-methyl methacrylate copolymer (EMMA), ethylene-methacrylic acid polymer (EMAA), and ethylene-acrylic acid copolymer (EAA), polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polystyrene, and silicone, and these materials can be used alone or in combination of two or more.

[0023] When a foam base material is used as the material of the first base material 21, one or more types of known foam materials can be freely selected and used. Specific examples include polyolefin, polyurethane, acrylic, chloroprene rubber, silicone, etc., and one or more of these materials can be used in combination.

[0024] When paper is used as the material of the first base material 21, one or more types of known paper can be freely selected and used. Specific examples include fine paper, craft paper, glassine paper, coated paper, etc., and one or more of these materials can be used in combination.

[0025] The moisture permeability of the first substrate 21 is 800 g / m 2 It is preferable that the moisture permeability and elongation rate of the first base material 21 is within the above-mentioned ranges, and the elongation rate at break is preferably 50% or more. By setting the moisture permeability and elongation rate of the first base material 21 within the above-mentioned ranges, the first base material 21 is less likely to become stuffy and can conform to the skin even when the skin expands and contracts.

[0026] (3) Pressure-sensitive adhesive layers 31a and 31b An adhesive layer 31a on the upper surface of the first base 111 is provided to fix at least a portion of the catheter 5 thereto.

[0027] In Fig. 2(b), the adhesive layer 31a has the same size as the first base 111, but the adhesive layer 31a only needs to cover at least a part of the upper surface of the first base 111, and may cover the entire upper surface of the first base 111, or may cover the entire upper surfaces of the first base 111 and the peripheral portion 112. From the viewpoint of reliably fixing the catheter 5 on the adhesive layer 31a, it is preferable that the adhesive layer 31a covers the entire upper surface of the first base 111. The adhesive layer 31a may also cover the upper surface of the first base 111 with a predetermined pattern such as a dotted, lattice, or wave pattern.

[0028] The adhesive layer 31b on the bottom surface of the first base 111 is provided for attaching the first member 110 to the body surface.

[0029] The adhesive layer 31b only needs to cover at least a part of the bottom surface of the first base 111, and may cover only the peripheral portion of the bottom surface of the first base 111, or may cover the entire bottom surface of the first base 111. Alternatively, it may cover only the bottom surface of the peripheral portion 112. From the viewpoint of reliably fixing the first member 110 to the body surface, it is preferable that the adhesive layer 31b covers the entire bottom surface of the first base 111 and the bottom surface of the peripheral portion 112. The adhesive layer 31b may cover the bottom surface of the first base 111 with a predetermined pattern such as a dotted, lattice, or wave pattern.

[0030] The type of adhesive used in the adhesive layers 31a and 31b of this embodiment is not particularly limited as long as it does not impair the effects of the present invention, and one or more types of adhesives that can be used in general catheter fixing devices can be freely selected and used. Specifically, for example, pressure-sensitive adhesives such as acrylic, silicone, polyester, urethane, vinyl ether, natural rubber, and synthetic rubber can be mentioned, and one or more types of these adhesives can be used in combination. Among these, it is preferable to use silicone and / or acrylic adhesives that have high heat resistance, and when emphasis is placed on fixing power, it is preferable to use synthetic rubber adhesives.

[0031] The adhesive layers 31a and 31b may be made of a hydrocolloid adhesive, which is an adhesive exemplified above to which a hydrophilic compound has been added. The hydrocolloid adhesive can absorb sweat from the body surface and reduce rashes and itching caused by sweat. The adhesive layers 31a and 31b may further contain a physiologically active agent such as a moisturizer, an antibacterial agent, an ultraviolet protection agent, an inorganic filler, etc.

[0032] (4) Cushion section The first base 111 of the first member 110 of this embodiment preferably has cushioning properties. That is, the first member 110 of this embodiment preferably has a cushioning portion (not shown) on at least a part of the first base 111. By disposing the cushioning portion between the body surface and the catheter 5 when fixing the catheter 5, it is possible to further prevent the catheter 5 from pressing the body surface and causing pain.

[0033] The cushion portion has an upper surface and a bottom surface, and the catheter 5 is placed on the adhesive layer 31a that covers at least a part of the upper surface of the cushion portion. The cushion portion may be provided by forming the first substrate 21 from a cushioning material, or by making the first base portion 111 thicker than the surrounding portion 112.

[0034] Examples of cushioning materials that can be used include fiber substrates such as nonwoven fabric, knitted fabric, and woven fabric; plastic substrates; foam substrates made of synthetic resin with numerous microbubbles formed therein; and paper.

[0035] (5) Release sheet The first member 110 of this embodiment may include a release sheet covering each of the above-mentioned adhesive layers 31a and 31b. When the first member 110 includes a release sheet, the form of the release sheet is not particularly limited and can be freely designed. Specifically, for example, the adhesive layers 31a and 31b may each be covered with one release sheet, or the adhesive layers 31a and 31b may each be covered with two or more release sheets. In addition, a grip part for assisting peeling may be provided at the end of the release sheet. The material of the release sheet may be a plastic substrate, paper, or the like. In addition, from the viewpoint of making it easy to peel the release sheet from the adhesive layers 31a and 31b during use, the surface of the above-mentioned substrate may be treated with a silicone-based resin or a fluororesin.

[0036] (6) First member 110-1 (modification example 1 of the first member 110) A first member 110-1 which is a first modification of the first member 110 has a cushion material 4 on the first base 111 which is separate from the first base 111 as shown in FIG. 2(c).

[0037] The cushion material 4 has an upper surface and a bottom surface, and the catheter 5 is placed on an adhesive layer 31c that covers at least a part of the upper surface of the cushion material 4. The first base 111 and the cushion material 4 may be bonded together by the adhesive layer 31a on the upper surface of the first base 111.

[0038] The material of the cushioning material 4 can be the same as the cushioning material described above. The adhesive of the adhesive layer 31c can be the same as the adhesive layers 31a and 31b described above. The cushioning material 4 may be provided with a release sheet covering the adhesive layer 31c. When the cushioning material 4 is provided with a release sheet, the form of the release sheet is not particularly limited and can be freely designed. Specifically, for example, the adhesive layer 31c may be covered with one release sheet, or the adhesive layer 31c may be covered with two or more release sheets. The end of the release sheet may be provided with a grip portion to assist peeling. The material of the release sheet can be the same as the release sheets of the adhesive layers 31a and 31b described above.

[0039] <2. Second member 120> Fig. 3(a) is a schematic plan view of the second member 120 of this embodiment, and Fig. 3(b) is a schematic cross-sectional view taken along line A-A' of Fig. 3(a). The second member 120 of this embodiment has a second base 121 that fixes at least a part of the catheter 5, and a plurality of extensions 122a and 122b extending from the second base 121. Note that, although an example having two extensions 122a and 122b will be described in this embodiment, the number of extensions is not limited to two, and may be, for example, three or more.

[0040] The size of the second member 120 may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, etc., but it is preferable that the width is 2 to 8 cm and the length is 2 to 6 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3 to 7.5 cm and the length is 2.5 to 5.5 cm.

[0041] (1) Second base portion 121, two extension portions 122a and 122b Second base 121 is a portion that fixes catheter 5 placed on first base 111 of first member 110 from above. Second base 121 has an upper surface and a bottom surface, and is provided with adhesive layer 32 that covers at least a portion of the bottom surface of second base 121. Second base 121 may be provided with second substrate 22 on the upper surface of adhesive layer 32.

[0042] The two extensions 122a and 122b are attached to the body surface to prevent the catheter 5 fixed by the second base 121 from slipping out. The extensions 122a and 122b each have an upper surface and a bottom surface, and are provided with an adhesive layer 32 that covers at least a part of the bottom surface of the two extensions 122a and 122b. The two extensions 122a and 122b may be provided with a second base material 22 on the upper surface of the adhesive layer 32. The two extensions 122a and 122b each preferably extend from the second base 121 toward the puncture direction of the catheter 5 (direction D1 in FIG. 3(a)). By making the extensions in this shape, even if the catheter 5 moves in the direction of slipping out (the direction opposite to D1 in FIG. 3(a)) after being fixed, the two extensions 122a and 122b provide resistance, so that the catheter 5 is less likely to slip out. In addition, the expansion and contraction of the skin around the puncture site of the catheter 5 can also be suppressed.

[0043] The shape of the second base 121 and the two extensions 122a and 122b may be any shape as long as the catheter 5 can be fixed and the puncture part of the catheter 5 can be visually confirmed. That is, as shown in Fig. 3(a), the cutout part between the extensions 122a and 122b is not limited to being substantially triangular, and may be, for example, semicircular, trapezoidal, rectangular, or the like, or may not have a cutout part. From the viewpoint of more reliably fixing the catheter 5 and making the puncture part of the catheter 5 easily visually confirmed, it is preferable that the cutout part is substantially triangular.

[0044] The size of the second base 121 may be appropriately selected depending on the thickness of the catheter 5, the site where the catheter 5 is fixed, etc., but it is preferable that the width is 2 to 7 cm and the length is 0.5 to 3 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3 to 6 cm and the length is 1 to 2 cm. The size of the two extensions 122a and 122b may be appropriately selected depending on the site where the catheter 5 is fixed, the required fixing force, etc., but it is preferable that the width is 0.5 to 3 cm and the length is 1 to 5 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 1 to 2.5 cm and the length is 1.5 to 4.5 cm.

[0045] (2) Second substrate 22 The material of the second base material 22 in this embodiment can be the same as that of the above-mentioned first base material 21. In addition, the portion of the second base material 22 corresponding to the second base portion 121 and the portions corresponding to the two extension portions 122a and 122b may be made of the same type of material or different types of materials.

[0046] (3) Adhesive layer 32 The adhesive layer 32 on the second base 121 and the bottom surfaces of the two extension parts 122a and 122b is provided to fix at least a part of the catheter 5 and to attach the second member 120 to the body surface. The adhesive layer 32 only needs to cover at least a part of the bottom surface of the second base 121 and at least a part of the bottom surfaces of the two extension parts 122a and 122b, and may cover only the periphery of each of the bottom surfaces of the second base 121 and the two extension parts 122a and 122b, or may cover the entire bottom surface of the second base 121 and each of the bottom surfaces of the two extension parts 122a and 122b. From the viewpoint of reliably fixing the catheter 5 and reliably fixing the second member 120 to the body surface, it is preferable that the adhesive layer 32 entirely covers the bottom surface of the second base 121 and the bottom surfaces of the two extensions 122a and 122b. The adhesive layer 32 may also cover the bottom surface of the second base 121 and the bottom surfaces of the two extensions 122a and 122b with a predetermined pattern such as a dot pattern, a lattice pattern, or a wave pattern. The adhesive of the adhesive layer 32 of this embodiment may be the same as that of the adhesive layers 31a and 31b described above. The adhesive layer 32 on the bottom surface of the second base 121 and the adhesive layer 32 on the bottom surfaces of the two extensions 122a and 122b may each use the same type of adhesive, or different types of adhesives.

[0047] (4) Release sheet The second member 120 of the present embodiment may include a release sheet that covers the above-mentioned adhesive layer 32. When the second member 120 includes a release sheet, the form of the release sheet may be freely selected from those exemplified for the release sheet of the first member 110. In addition, in the adhesive layer 32, the portion corresponding to the second base 121 and the portions corresponding to the two extensions 122a and 122b may be covered with one release sheet each, or the portion corresponding to the second base 121 and the portions corresponding to the two extensions 122a and 122b may be covered with two or more release sheets each.

[0048] (5) Modification 1 of the second member 120 FIG. 12(a) is a schematic plan view of a second member 120' of Modification 1 of the second member 120, and FIG. 12(b) is a schematic cross-sectional view taken along line AA' in FIG. 12(a).

[0049] As shown in FIG. 12(a), the second member 120' of the first modification has a second base 121' for fixing at least a part of the catheter 5, and a first extension portion 122a', a first extension portion 122b', a second extension portion 122c', and a second extension portion 122d' extending from the second base 121'. The first extension portion 122a' and the first extension portion 122b' correspond to the two extension portions 122a and 122b (first extension portions) of the second member 120 shown in FIG. 3(a), respectively. That is, the second member 120' has a configuration in which the second extension portion 122c' and the second extension portion 122d' are added to the second member 120 (see FIG. 3(a)).

[0050] The size of the second member 120' may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, etc., but it is preferable that the width is 2 to 8 cm and the length is 2 to 6 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3 to 7.5 cm and the length is 2.5 to 5.5 cm.

[0051] (6) Second base portion 121′, first extension portion 122a′, first extension portion 122b′, second extension portion 122c′, second extension portion 122d′

[0052] The second base 121' is a portion that fixes the catheter 5 placed on the first base 111 of the first member 110 from above. The second base 121' has a top surface and a bottom surface, and includes an adhesive layer 32' that covers at least a portion of the bottom surface of the second base 121'. The second base 121' may include a second substrate 22' on the top surface of the adhesive layer 32'.

[0053] The first extension portion 122a', the first extension portion 122b', the second extension portion 122c' and the second extension portion 122d' are portions that are attached to the body surface to prevent the catheter 5 fixed by the second base portion 121' from coming loose.

[0054] Each of the first extension portion 122a', the first extension portion 122b', the second extension portion 122c', and the second extension portion 122d' has an upper surface and a bottom surface, and includes an adhesive layer 32' that covers at least a part of the bottom surface of the first extension portion 122a', the first extension portion 122b', the second extension portion 122c', and the second extension portion 122d'. Each of the first extension portion 122a', the first extension portion 122b', the second extension portion 122c', and the second extension portion 122d' may include a second base material 22' on the upper surface of the adhesive layer 32'.

[0055] As shown in Fig. 12(a), it is preferable that each of the first extension portion 122a' and the first extension portion 122b' extends from the second base portion 121' toward the puncture direction of the catheter 5. In Fig. 12(a) (plan view from the body surface side), the distance between the first extension portion 122a' and the first extension portion 122b' (length in the left-right direction in Fig. 12(a)) increases as they extend in the puncture direction. Note that the distance between the first extension portion 122a' and the first extension portion 122b' (length in the left-right direction in Fig. 12(a)) extending in the puncture direction may be approximately the same length.

[0056] With this shape, even if the catheter 5 moves in the direction of being pulled out after being fixed, the first extending portion 122a' and the first extending portion 122b' provide resistance, making it difficult for the catheter 5 to be pulled out. In addition, the expansion and contraction of the skin around the puncture site of the catheter 5 can also be suppressed.

[0057] As shown in FIG. 12(a), if the direction extending within the plane of the second base 121' and between the first extending parts 122a' and 122b' is the first direction P1 (puncture direction, downward in FIG. 12(a)), the second extending parts 122c' and 122d' preferably extend in a second direction P2 that is approximately perpendicular to the first direction P1 within the plane of the second base 121'. By adopting such a shape, even if a force acts in a direction intersecting the direction in which the catheter 5 is removed after the catheter 5 is fixed, the second extending parts 122c' and 122d' provide a resistance force, so that the catheter 5 is less likely to slip sideways. In addition, the expansion and contraction of the skin around the puncture part of the catheter 5 can also be suppressed.

[0058] More specifically, in FIG. 12(a), the second extension portions 122c' and 122d' extend in opposite directions from the second base portion 121' along the second direction P2 (in FIG. 12(a), the second extension portion 122c' extends to the left, and the second extension portion 122d' extends to the right).

[0059] The shape of each of the second base portion 121', the first extension portion 122a', the first extension portion 122b', the second extension portion 122c', and the second extension portion 122d' may be any shape as long as the catheter 5 can be fixed and the puncture portion of the catheter 5 can be visually recognized. That is, as shown in FIG. 12(a), the cutout portion between the first extension portion 122a' and the first extension portion 122b' is not limited to being substantially triangular, and may be, for example, semicircular, trapezoidal, rectangular, or the like, or may not have a cutout portion. From the viewpoint of more reliably fixing the catheter 5 and making the puncture portion of the catheter 5 easily visually recognized, it is preferable that the cutout portion is substantially triangular.

[0060] The second extending portions 122c' and 122d' may extend in a direction substantially perpendicular to the second direction P2, on the opposite side to the first extending portions 122a' and 122b' (upward in FIG. 12(a)). For example, a cutout similar to the cutout between the first extending portion 122a' and the first extending portion 122b' may be formed between the second extending portions 122c' and 122d', or such a cutout may not be formed. The shape of such a cutout may be substantially triangular, semicircular, trapezoidal, rectangular, or the like.

[0061] The size of the second base 121' may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, etc., but it is preferable that the width is 2 to 7 cm and the length is 0.5 to 3 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3 to 6 cm and the length is 1 to 2 cm.

[0062] The size of the first extension parts 122a' and 122b' may be appropriately selected depending on the site where the catheter 5 is fixed and the required fixing force, but it is preferable that each has a width of 0.5 to 3 cm and a length of 1 to 5 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that each has a width of 1 to 2.5 cm and a length of 1.5 to 4.5 cm.

[0063] (7) Modification 2 of the second member 120 FIG. 14(a) is a schematic plan view of a second member 120-14 of Modification 2 of the second member 120, and FIG. 14(b) is a schematic cross-sectional view taken along line CD in FIG. 14(a).

[0064] The second member 120-14 has a second base portion 120-14-1 for fixing at least a portion of the catheter 5, as shown in FIG. 14(a).

[0065] The size of the second member 120-14 may be appropriately selected depending on the thickness of the catheter 5, the part to which the catheter 5 is fixed, etc., but it is preferable that the width is 3 to 8 cm and the length is 2 to 6 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3.5 to 7.5 cm and the length is 2.5 to 5.5 cm. The shape of the second member 120-14 may be any shape as long as the tip (needle tip) of the catheter 5 can be visually confirmed. Furthermore, the material of the second member 120-14 may be any material as long as it is a hard material.

[0066] The second base 120-14-1 is a portion that fixes the catheter 5 placed on the first base 111 of the first member 110 from above. The second base 120-14-1 has an upper surface and a bottom surface, and includes an adhesive layer 32-14 that covers at least a portion of the bottom surface of the second base 120-14-1. The second base 120-14-1 may include a second substrate 22-14 on the upper surface of the adhesive layer 32-14.

[0067] 3. Third member 130 and modified example 1 of the third member 130 Fig. 4(a) is a schematic plan view of the third member 130 of this embodiment (a third member 130-1 which is a first modified example of the third member 130), and Fig. 4(b) is a schematic cross-sectional view of the third member 130 taken along line A-A' in Fig. 4(a). Also, Fig. 4(c) is a schematic cross-sectional view of the third member 130-1 taken along line A-A' in Fig. 4(a).

[0068] The third member 130 or 130-1 of this embodiment has a window portion 131 through which the puncture site of the catheter 5 can be observed, and a frame portion 132 provided around the outer periphery of the window portion.

[0069] The shape of each of the third members 130 and 130-1 may be appropriately selected depending on the site to which the catheter 5 is fixed. That is, the shape is not limited to the approximately trapezoidal shape shown in Fig. 4(a), and may be, for example, a circular shape, an elliptical shape, a triangular shape, a diamond shape, or a rectangular shape.

[0070] The size of each of the third members 130 and 1301- may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, and the like, but it is preferable that the width is 3 to 8 cm and the length is 2 to 7 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3.5 to 7.5 cm and the length is 2.5 to 6 cm.

[0071] (1) Window portion 131 and frame portion 132 The window portion 131 is a portion through which the puncture site of the catheter 5 is observed.

[0072] The window portion 131 may be composed only of the third base material 23. Alternatively, the window portion 131 may have a top surface and a bottom surface, be provided with an adhesive layer 33 that covers at least a part of the bottom surface of the window portion 131, and be provided with the third base material 23 on the top surface of the adhesive layer 33. Since the transparency of the window portion 131 increases when it comes into close contact with the skin, making it easier to observe the catheter puncture site, it is preferable to provide the adhesive layer 33 on the entire surface.

[0073] Frame portion 132 is a portion that is attached to the body surface. Frame portion 132 has an upper surface and a bottom surface, and includes an adhesive layer 33 that covers at least a part of the bottom surface of frame portion 132. Frame portion 132 may include a third base material 23 on the upper surface of adhesive layer 33.

[0074] The shape of the window 131 may be any shape as long as the puncture portion of the catheter 5 can be visually confirmed when the catheter 5 is fixed. That is, as shown in FIG. 4(a), the window 131 is not limited to a substantially inverted triangular shape, and may be, for example, a triangular shape, a circular shape, an elliptical shape, a trapezoidal shape, or a rectangular shape. From the viewpoint of making it easy to observe the puncture portion of the catheter 5 and reliably fixing the third member 130 to the body surface, it is preferable that the width of the window 131 is shorter toward the puncture direction of the catheter 5. In addition, from the viewpoint of suppressing the expansion and contraction of the skin around the puncture portion 51 of the catheter 5, it is preferable that the width of the window 131 is longer toward the puncture direction of the catheter 5.

[0075] The size of window 131 may be appropriately selected depending on the visibility of the puncture site of catheter 5, but it is preferable that the width is 0.5 to 4 cm and the length is 0.5 to 6 cm. From the viewpoint of fixation of catheter 5, it is more preferable that the width is 1 to 3 cm and the length is 1 to 5 cm.

[0076] The size of frame portion 132 may be appropriately selected depending on the site where catheter 5 is fixed and the required fixing force, but it is preferable that the width is 2 to 8 cm and the length is 2 to 8 cm. From the viewpoint of fixation of catheter 5, it is more preferable that the width is 2.5 to 7.5 cm and the length is 2.5 to 7 cm.

[0077] (2) Third substrate 23 The material of the third base material 23 in this embodiment can be the same as that of the first base material 21 and / or the second base material 22 described above. Note that, in order to make it easy to observe the puncture site of the catheter 5, it is preferable that at least the portion corresponding to the window portion 131 has transparency. In addition, from the viewpoint of the handleability of the third member 130, it is preferable that the frame portion 132 is made of a material harder than the window portion 131.

[0078] As a specific configuration for ensuring the above-mentioned characteristics of the window portion 131 and the frame portion 132, for example, as shown in Fig. 4(b) in the third member 130, the window portion 131 and the frame portion 132 are configured as an integrated member, and as shown in Fig. 4(c) in the third member 130-1 which is Modification 1, the window portion 131 and the frame portion 132 are configured as a plurality of members. Each configuration will be described below.

[0079] (2-1) When the window portion 131 and the frame portion 132 are formed as an integrated member 4(b), when the window portion 131 and the frame portion 132 are formed as an integral member, for example, the third base material 23 may be formed from a fiber base material made of synthetic resin, and a predetermined portion of the fiber base material may be melted by heat to change from a fibrous state to a film state that can be visually recognized, thereby providing the window portion 131. In this case, the portion that remains fibrous functions as the frame portion 132, and the portion that has been melted by heat and changed from a fibrous state to a film state functions as the window portion 131. Moreover, even if the third base material 23 is formed from a transparent base material such as a synthetic resin film, and the frame portion 132 is thicker than the window portion 131, the above-mentioned characteristics can be ensured.

[0080] When the third substrate 23 is constructed of a fiber substrate made of synthetic resin, specific materials include, for example, polyurethane; polyesters such as polyethylene terephthalate and polybutylene terephthalate; polyamides such as nylon 6 and nylon 66; polyolefins such as polyethylene, low-density polyethylene, high-density polyethylene, and polypropylene; olefin copolymers such as ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), ethylene-methyl acrylate copolymer (EMA), ethylene-methyl methacrylate copolymer (EMMA), ethylene-methacrylic acid polymer (EMAA), and ethylene-acrylic acid copolymer (EAA); polyvinyl alcohol; polyvinyl chloride, polyvinylidene chloride; polystyrene; silicone, and the like. These materials can be used alone or in combination of two or more.

[0081] (2-2) When the window portion 131 and the frame portion 132 are configured with multiple members When the window portion 131 and the frame portion 132 are constructed from multiple components as shown in FIG. 4(c), for example, a first film 23a and a second film 23b harder than the first film 23a can be laminated together, so that the window portion 131 has at least the first film 23a and the frame portion 132 has at least the second film 23b.

[0082] The first film 23a is preferably a transparent film so as to make the window portion 131 visible. Examples of materials for the transparent film include polyurethane, polyether polyester, polyamide, polyethylene, polypropylene, acrylic copolymers, olefin copolymers, etc., and these materials can be used alone or in combination of two or more. Among these, it is preferable to use materials with excellent moisture permeability such as polyurethane, polyether polyester, polyamide, etc.

[0083] The material of the second film 23b may be, for example, a fiber base material such as a nonwoven fabric, a knitted fabric, or a woven fabric; a plastic base material; a foam base material made of a synthetic resin in which a large number of microbubbles are formed; paper, etc., and one or more of these materials may be freely selected and used. From the viewpoint of improving the conformability of the third member 130 to the body surface, it is preferable that the second film 23b is a fiber base material.

[0084] (3) Adhesive layer 33 The adhesive layer 33 on the bottom surface of the window portion 131 and the bottom surface of the frame portion 132 is provided for attaching the third member 130 to the body surface.

[0085] The adhesive layer 33 may cover at least a part of the bottom surface of the frame portion 132, and may cover only the peripheral portion of the bottom surface of the frame portion 132, may cover the entire bottom surface of the frame portion 132, or may cover the entire bottom surface of the window portion 131 and the bottom surface of the frame portion 132. From the viewpoint of reliably fixing the third member 130 to the body surface, it is preferable that the adhesive layer 33 covers the entire bottom surface of the frame portion 132. Furthermore, the adhesive layer 33 may cover the bottom surface of the third base material 23 with a predetermined pattern such as a dotted, lattice, or wave pattern.

[0086] The adhesive of adhesive layer 33 in this embodiment can be the same as that of adhesive layers 31a, 31b, and / or 32. When adhesive layer 33 covers the entire bottom surface of window portion 131 and the entire bottom surface of frame portion 132, adhesive layer 33 on the bottom surface of window portion 131 and adhesive layer 33 on the bottom surface of frame portion 132 may use the same type of adhesive, or different types of adhesives.

[0087] 4(c), when the window portion 131 and the frame portion 132 are formed by laminating the first film 23a and the second film 23b, an adhesive layer 33a covering at least a part of the bottom surface of the first film 23a and an adhesive layer 33b covering at least a part of the bottom surface of the second film 23b may be provided. The adhesive of the adhesive layers 33a and 33b may be the same as that of the adhesive layers 31a, 31b, 32, and / or 33 described above.

[0088] (4) Release sheet The third member 130 of the present embodiment may include a release sheet that covers the adhesive layer 33 (or 33a and 33b). When the third member 130 includes a release sheet, the form of the release sheet may be freely selected from those exemplified for the release sheet of the first member 110 described above.

[0089] <4. How to use the catheter fixing device 100> An example of a method of using the catheter fixture 100 of this embodiment will be described below with reference to Figures 5 and 6. Figure 5(a) is a schematic plan view showing a state in which a catheter 5 is placed on a first base 111. Figure 5(b) is a schematic plan view showing a state in which a second member 120 is attached onto the catheter 5, and Figure 6(a) is a schematic cross-sectional view of Figure 5(b). Figure 6(b) is a schematic plan view showing a state in which a third member 130 is attached.

[0090] First, as shown in Fig. 5(a) and Fig. 6(a), the tip 51-1 of the catheter constituting the catheter 5 is punctured into the body surface (skin H), and the first member 110 is inserted under the catheter 5. At this time, the first member 110 is attached to the body surface by the adhesive layer 31b on the bottom surface of the first base 111, and the catheter 5 is fixed to the first base 111 by the adhesive layer 31a on the upper surface of the first base 111. Due to the adhesive layer 31a on the upper surface of the first base 111, the catheter 5 can be temporarily fixed at the stage where the catheter 5 is placed on the first base 111, and the catheter 5 is unlikely to come out of the puncture part 51. By temporarily fixing the catheter 5 by the first member 110, the subsequent fixing work can be performed with peace of mind.

[0091] Next, as shown in FIG. 5(b), the second member 120 is attached onto the catheter 5. At this time, the second member 120 is attached to the body surface by the adhesive layer 32 on the bottom surfaces of the two extension parts 122a and 122b. The first member 110 and the second member 120 are attached together so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the top surface of the first base 111 and the adhesive layer 32 on the bottom surface of the second base 121. When the catheter 5 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the top surface of the first member 110 and the adhesive layer 32 on the bottom surface of the second member 120, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 is not easily removed from the puncture part 51, and the catheter 5 can be reliably fixed.

[0092] The second member 120 is preferably attached such that the second base 121 does not cover the connecting member 53 constituting the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the second base 121 so as not to cover the connecting member 53 of the catheter 5, it is possible to prevent floating between the catheter 5 and the second member 120 and to further suppress the movement of the catheter 5. Furthermore, by covering only the catheter hub 52 constituting the catheter 5 with the second base 121, it is possible to easily separate the connection between the catheter hub 52 and the connecting member 53.

[0093] In addition, the two extensions 122a and 122b are preferably attached so that the puncture portion 51 of the catheter 5 is visible, and more preferably, the two extensions 122a and 122b are attached to the body surface so as to be located on both sides of the puncture portion 51 of the catheter 5. By attaching the two extensions 122a and 122b to the body surface so as to be located on both sides of the puncture portion 51 of the catheter 5, when the catheter 5 moves in a direction to be removed from the puncture portion 51 after the catheter 5 is fixed (the direction opposite to D1 in Fig. 5(b) and Fig. 6(a), and the rightward direction in Fig. 6(a)), the two extensions 122a and 122b provide resistance, making it difficult for the catheter 5 to be removed. In addition, the expansion and contraction of the skin H around the puncture portion 51 of the catheter 5 can also be suppressed.

[0094] Finally, as shown in Fig. 6(b), the third member 130 is attached onto the second member 120. At this time, the third member 130 is attached to the body surface by the adhesive layer 33 on the bottom surface of the frame portion 132, and the second member 120 and the third member 130 are attached together by the adhesive layer 33 on the bottom surface of the frame portion 132. By attaching the third member 130, the puncture site 51 of the catheter 5 can be protected. In addition, by providing the window portion 131 in the third member 130, the visibility of the puncture site 51 can be ensured.

[0095] The third member 130 is preferably attached such that the frame portion 132 does not cover the connecting member 53 of the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the frame portion 132 so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the third member 130 is suppressed, and movement of the catheter 5 can be further suppressed. Furthermore, by covering only the catheter hub 52 with the second base portion 121, the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0096] <5. How to use the catheter fixing device 100'> Hereinafter, an example of a method of using the catheter fixing device 100' of the modified first embodiment will be described with reference to Figure 13. Note that Figure 13 is a schematic plan view (corresponding to Figure 6(b)) showing the state in which the first member 110, the second member 120', and the third member 130 are attached.

[0097] The catheter fixing tool 100' is obtained by replacing the second member 120 of the catheter fixing tool 100 with a second member 120'.

[0098] The catheter fixing device 100' is used in a procedure generally similar to that of the catheter fixing device 100, and therefore will be described with appropriate omission of illustrations.

[0099] First, the catheter 5 is inserted into the body surface, and the first member 110 is inserted under the catheter 5. At this time, the first member 110 is attached to the body surface by the adhesive layer 31b on the bottom surface of the first base 111, and the catheter 5 is fixed to the first base 111 by the adhesive layer 31a on the upper surface of the first base 111. The adhesive layer 31a on the upper surface of the first base 111 allows the catheter 5 to be temporarily fixed at the stage when the catheter 5 is placed on the first base 111, and the catheter 5 becomes difficult to come out of the puncture part 51. By temporarily fixing the catheter 5 with the first member 110, the subsequent fixing work can be performed with peace of mind.

[0100] Next, the second member 120' is attached onto the catheter 5. At this time, the second member 120' is attached to the body surface by the adhesive layer 32' on the bottom surface of each of the four extension parts 122a', 122b', 122c', and 122d'. In addition, the first member 110 and the second member 120' are attached together so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first base 111 and the adhesive layer 32' on the bottom surface of the second base 121'. When the first member 110' is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the top surface and the adhesive layer 32' on the bottom surface of the second member 120', the catheter 5 is surrounded by the adhesive layer in the up-down direction (±P1 axis direction, where +P1 axis direction is indicated by the downward arrow in FIG. 13), preferably in the up-down and left-right directions (±P1 axis direction and ±P2 axis direction, where +P1 axis direction is indicated by the rightward arrow in FIG. 13), and more preferably 360 degrees around. This makes it difficult for the catheter 5 to come out of the puncture site 51, and the catheter 5 can be reliably fixed.

[0101] The second member 120' is preferably attached such that the second base 121' does not cover the connecting member 53 of the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the second base 121' so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the second member 120' is suppressed, and the movement of the catheter 5 can be further suppressed. Furthermore, by covering only the catheter hub 52 with the second base 121', the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0102] In addition, the two extensions 122a' and 122b' are preferably attached so that the puncture portion 51 of the catheter 5 is visible, and more preferably, the two extensions 122a' and 122b' are attached to the body surface so that they are located on both sides of the puncture portion 51 of the catheter 5, that is, at least a part of the outer circumference of the catheter puncture portion 51 that punctures the catheter 5. By attaching the two extensions 122a' and 122b' to the body surface so that they are located on both sides of the puncture portion 51 of the catheter 5, when the catheter 5 moves in a direction to be removed from the puncture portion 51 after the catheter 5 is fixed, the two extensions 122a' and 122b' provide resistance, making it difficult for the catheter 5 to be removed. In addition, the expansion and contraction of the skin around the puncture portion 51 of the catheter 5 can also be suppressed.

[0103] In addition, when the two extension parts 122a' and 122b' are attached to the body surface so that they are located on both sides of the puncture part 51 of the catheter 5 (in the ±P2 axis directions), the two extension parts 122c' and 122d' are attached to the body surface in a state in which they extend in the P2 axis direction that is approximately perpendicular to the P1 axis in a plan view from the body surface side (more specifically, the extension part 122c' is attached to the body surface in a state in which it extends in the -P2 axis direction (leftward in FIG. 13) and the extension part 122d' is attached to the body surface in a state in which it extends in the +P2 axis direction (rightward in FIG. 13)). Therefore, after the catheter 5 is fixed, when a force acts in a direction intersecting the direction in which the catheter 5 is removed, the two extension parts 122c' and 122d' provide resistance, so that the catheter 5 is less likely to slip sideways. In addition, the expansion and contraction of the skin around the puncture part 51 of the catheter 5 can also be suppressed.

[0104] Finally, the third member 130 is attached onto the second member 120'. At this time, the third member 130 is attached to the body surface by the adhesive layer 33 on the bottom surface of the frame portion 132, and the second member 120' and the third member 130 are attached together by the adhesive layer 33 on the bottom surface of the frame portion 132. By attaching the third member 130, the puncture site 51 of the catheter 5 can be protected. In addition, by providing the window portion 131 in the third member 130, the visibility of the puncture site 51 can be ensured.

[0105] The third member 130 is preferably attached such that the frame portion 132 does not cover the connecting member 53 of the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the frame portion 132 so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the third member 130 is suppressed, and movement of the catheter 5 can be further suppressed. Furthermore, by covering only the catheter hub 52 with the second base portion 121', the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0106] <6. How to use the catheter fixing device 100-15> An example of a method of using the catheter fixture 100-15 of the modified example of the first embodiment will be described below with reference to Fig. 15. Note that Fig. 15 is a schematic plan view (corresponding to Fig. 6(b)) showing the state in which the first member 110, the second member 120-14, and the third member 130 are attached.

[0107] The catheter fixing tool 100-15 is obtained by replacing the second member 120 of the catheter fixing tool 100 with a second member 120-14.

[0108] The catheter fixture 100-15 is used in a procedure generally similar to that of the catheter fixture 100, and therefore will be described with appropriate omission of illustrations.

[0109] First, the tip 51-1 of the catheter constituting the catheter 5 is inserted into the body surface, and the first member 110 is inserted under the catheter 5. At this time, the first member 110 is attached to the body surface by the adhesive layer 31b on the bottom surface of the first base 111, and the catheter 5 is fixed to the first base 111 by the adhesive layer 31a on the upper surface of the first base 111. The adhesive layer 31a on the upper surface of the first base 111 allows the catheter 5 to be temporarily fixed at the stage when the catheter 5 is placed on the first base 111, and the catheter 5 becomes difficult to come out of the puncture part 51. By temporarily fixing the catheter 5 by the first member 110, the subsequent fixing work can be performed with peace of mind.

[0110] Next, the second member 120-14 is attached on the catheter 5 so that the catheter puncture portion 51 where the catheter 5 is punctured can be visually confirmed. The first member 110 and the second member 120-14 are attached together so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first base 111 and the adhesive layer 32-14 on the bottom surface of the second base 120-14-1. When the adhesive layer 31a on the upper surface of the first member 110 and the adhesive layer 32-102 on the bottom surface of the second member 120-14 (second base 120-14-1) are attached so that at least a part of the catheter 5 is sandwiched between them, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 is not easily removed from the puncture portion 51, and the catheter 5 can be reliably fixed.

[0111] The second member 120-14 is preferably attached such that the second base 120-14-1 does not cover the connecting member 53 of the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the second base 120-14-1 so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the second member 120-14 is suppressed, and the movement of the catheter 5 can be further suppressed. Furthermore, by covering only the catheter hub 52 with the second base 120-14-1, the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0112] Finally, the third member 130 is attached onto the second member 120-14. At this time, the third member 130 is attached to the body surface by the adhesive layer 33 on the bottom surface of the frame portion 132, and the second member 120' and the third member 130 are attached together by the adhesive layer 33 on the bottom surface of the frame portion 132. By attaching the third member 130, the puncture site 51 of the catheter 5 can be protected. In addition, by providing the window portion 131 in the third member 130, the visibility of the puncture site 51 can be ensured.

[0113] The third member 130 is preferably attached so that the frame portion 132 does not cover the connecting member 53 of the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the frame portion 132 so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the third member 130 is suppressed, and movement of the catheter 5 can be further suppressed. Furthermore, by covering only the catheter hub 52 with the second base portion 120-14-1, the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0114] The method for fixing the catheter in this embodiment and the modified example includes the following steps (a) to (d); (a) attaching a first member to a body surface; (b) fixing the catheter to the first base with an adhesive layer on the upper surface of the first base; (c) attaching a second member over the catheter; (d) attaching the second member to a body surface with the adhesive layer on the bottom surface of the plurality of extensions of the second member; In the above step (c), the first member and the second member are attached to each other so that at least a part of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the second base.

[0115] The method may further include a step (e) of attaching a third member onto the second member. In the step (e), the third member is attached to the body surface by the adhesive layer on the bottom surface of the frame portion, and the second member and the third member are preferably attached to each other by the adhesive layer on the bottom surface of the frame portion. When the third member is not used, a transparent film tape may be attached to the surface (e.g., the surface opposite to the body surface side) of the second member (e.g., the second member 120, the second member 120') to form a window between the multiple extensions. In this case, the visibility of the puncture part of the catheter can be ensured while protecting the puncture part, and further, since the third member is not used, the fixed area can be made smaller, and the puncture part can be more easily followed by the expansion and contraction of the skin.

[0116] In the above step (d), the second member (second member 120 or second member 120') is preferably attached to the body surface so that the multiple extensions (multiple first extensions) are located on both sides of the catheter puncture portion, that is, at least a part of the outer periphery of the catheter puncture portion that punctures the catheter. In a plan view from the body surface side, the multiple extensions (multiple first extensions) preferably extend in the puncture direction starting from the outer periphery of the catheter puncture portion, and it is more preferable that the distance between the multiple extensions (multiple first extensions) increases as they extend (the multiple extensions (multiple first extensions) move away from each other). Note that even if the multiple extensions (multiple first extensions) extend in the puncture direction starting from the outer periphery of the catheter puncture portion 51, the distance between the multiple extensions (multiple first extensions) may be approximately constant.

[0117] Furthermore, in the above step (d), it is preferable that the multiple extension parts (multiple second extension parts) of the second member (second member 120 or second member 120') extend in a direction substantially perpendicular to the puncture direction of the catheter in a plan view from the body surface side. The multiple extension parts (multiple second extension parts) of the second member (second member 120 or second member 120') may extend in a direction substantially opposite to the puncture direction of the catheter in a plan view from the body surface side. In this case, the distance between the multiple extension parts (multiple second extension parts) may increase as the multiple extension parts (multiple second extension parts) extend (the multiple extension parts (multiple second extension parts) may move away from each other), or the distance between the multiple extension parts (multiple second extension parts) may be substantially constant.

[0118] As described above, the catheter fixing device of this embodiment, by positioning the first member between the body surface and the catheter, can prevent the catheter from pressing against the body surface and causing pain, thereby reducing the strain on the body surface when the catheter is fixed.

[0119] Furthermore, in the catheter fixing device of this embodiment, since the first base has an adhesive layer on the upper surface thereof, the catheter can be temporarily fixed at the stage where the catheter is placed on the first base, making it difficult for the catheter to come out of the puncture site. By temporarily fixing the catheter with the first member, the subsequent fixing work can be performed with peace of mind.

[0120] Furthermore, in the catheter fixing device of this embodiment, the first member and the second member are bonded together so that at least a portion of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the second base, so that the catheter is surrounded by the adhesive layer in both the vertical and horizontal directions, preferably all around 360 degrees, making it difficult for the catheter to come out of the puncture site and enabling the catheter to be securely fixed.

[0121] Furthermore, the catheter fixing device of this embodiment is attached to the body surface so that the multiple extension portions (first extension portions) of the second member are located on both sides of the catheter puncture site, i.e., around at least a portion of the outer circumference of the catheter puncture site, making it difficult for the catheter to come out after being fixed and also suppressing the stretching and contraction of the skin around the catheter puncture site.

[0122] In addition, the catheter fixing device of this embodiment is attached to the body surface with the multiple extension portions (second extension portions) of the second member extending in a second direction perpendicular to the first direction (the direction extending within the plane of the second base and between the multiple first extension portions) or on the opposite side to the multiple first extension portions (the negative side of the first direction), thereby making it difficult for the catheter to slip sideways after being fixed, and also suppressing the stretching and contraction of the skin around the puncture site of the catheter.

[0123] By further attaching a third member having a window portion to the catheter fixing device of this embodiment, the catheter fixing device can protect the puncture site of the catheter while also ensuring visibility of the puncture site.

[0124] The catheter fixing device of this embodiment is preferably intended for children (0-15 years old), particularly for newborns and pre-elementary school children (0-5 years old). Conventionally, the area of ​​the back of the hand, which is the target site for fixing the catheter, is very small for subjects from newborns to pre-elementary school children (0-5 years old), and there was no suitable catheter fixing device, so it was necessary to fix the catheter by cutting a general-purpose surgical tape or the like into thin strips and applying multiple layers of tape. Therefore, the fixing work was complicated and it was difficult to obtain a stable fixing force every time. In addition, the subject often resists and moves when fixing the catheter, which often causes problems such as the catheter coming out, and medical personnel such as nurses performed the catheter fixing work with anxiety every time.

[0125] However, the catheter fixing device of this embodiment can temporarily fix the catheter at the stage where the first member is inserted under the catheter and the catheter is placed on the first base, making it difficult for the catheter to come out of the puncture site, so that the catheter fixing operation can be performed with peace of mind.

[0126] Furthermore, in the catheter fixing device of this embodiment, the first member and the second member are bonded together so that at least a part of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the second base, so that the catheter is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around, making it difficult for the catheter to come out of the puncture site. Therefore, even for newborns and pre-elementary school children, whose backs of the hands are small in area to be fixed, strong fixing force can be obtained with a small fixing area.

[0127] As described above, the catheter fixing device of this embodiment can safely and securely fix the catheter while reducing the burden on the body surface, and therefore can be suitably used as a catheter fixing device for children.

[0128] 7. Second Member 120-1 (Modification 3 of the Second Member 120) and Third Member 130-2 (Modification 2 of the Third Member 130) FIG. 7(a) is a schematic plan view showing a second member 120-1 which is variant example 3 of the second member 120 of this embodiment, and a third member 130-2 which is variant example 2 of the third member 130, and FIG. 7(b) is a schematic cross-sectional view of the second member 120-1 and the third member 130-2 at A-A' in FIG. 7(a).

[0129] 7(a) and (b), the second member 120-1 and the third member 130-2 of this embodiment may be integrally configured. In this case, the second member 120-1 and the third member 130-2 may be configured to be bonded together by the adhesive layer 33b on the bottom surface of the frame portion 132. By integrally configuring the second member 120-1 and the third member 130-2, when fixing the catheter 5, the second member 120-1 and the third member 130-2 are attached to the body surface at the same time, making the attachment operation easier.

[0130] The contents described above regarding the catheter fixing device of the first embodiment of the present invention can be applied to the catheter fixing devices of the second to fifth embodiments of the present invention described below, unless there is any particular technical contradiction.

[0131] Second Embodiment The catheter fixing device 200 according to the second embodiment of the present invention further comprises a fourth member 140 in addition to the first member 110, second member 120, and third member 130 described in the first embodiment.

[0132] <1. Fourth member 140> FIG. 8 is a schematic plan view of the fourth member 140 of the present embodiment.

[0133] The size of the fourth member 140 may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, etc., but it is preferable that the width is 0.5 to 3 cm and the length is 4 to 12 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 1 to 2 cm and the length is 5 to 10 cm.

[0134] The fourth member 140 preferably has recesses 141a and 141b as shown in Fig. 8. By providing the recesses 141a and 141b, it is easy to align the center of the tape in the longitudinal direction with the catheter 5, and further, the fourth member 140 can be attached along the shape of the catheter 5, so that floating between the body surface and the catheter 5 is unlikely to occur, and movement of the catheter 5 in the width direction can be suppressed.

[0135] The shape of the recesses 141a and 141b may be any shape as long as it does not impair the effects of the present invention. That is, the recesses 141a and 141b are not limited to being semicircular in plan view as shown in Fig. 8, but may be, for example, triangular, trapezoidal, rectangular, or the like.

[0136] The fourth member 140 of this embodiment has a fourth base that fixes at least a portion of the catheter 5. The fourth base has a top surface and a bottom surface, and includes an adhesive layer that covers at least a portion of the bottom surface of the fourth base. The fourth base may include a fourth substrate on the top surface of the adhesive layer.

[0137] The material of the fourth base material can be the same as that of the first base material 21 described above.

[0138] The adhesive layer of the fourth base only needs to cover at least a part of the bottom surface of the fourth base, and may cover only the peripheral portion of the bottom surface of the fourth base, or may cover the entire bottom surface of the fourth base. From the viewpoint of reliably fixing the catheter 5, it is preferable that the adhesive layer covers the entire bottom surface of the fourth base. The adhesive layer may also cover the bottom surface of the fourth base with a predetermined pattern such as dots, a lattice, or a wave. The adhesive layer can use the same adhesive as the above-mentioned adhesive layers 31a and 31b.

[0139] The fourth member 140 may include a release sheet that covers the adhesive layer. When the fourth member 140 includes a release sheet, the form of the release sheet can be freely selected from those exemplified for the release sheet of the first member 110 described above.

[0140] In the second embodiment, a first member 110-1 may be used instead of the first member 110. In the second embodiment, a second member 120-1, a second member 120', or a second member 120-14 may be used instead of the second member 120. Furthermore, in the second embodiment, a third member 130-1 or a third member 130-2 may be used instead of the third member 130.

[0141] For example, the catheter fixing device 200 according to the second embodiment of the present invention may further include a fourth member 140 in addition to the first member 110, the second member 120' and the third member 130 described in the first embodiment. In this case, the catheter fixing device 200 achieves the effects provided by the second member 120 in the second embodiment, as well as the effects provided by the two extension portions 122c' and 122d' (second extension portions) of the second member 120' described in the first embodiment.

[0142] 2. How to Use the Catheter Fixing Device 200 An example of a method of using the catheter fixing device 200 of this embodiment will be described below with reference to Fig. 9. Fig. 9(a) is a schematic plan view showing the catheter fixing device 200 in an attached state, and Fig. 9(b) is a schematic cross-sectional view of Fig. 9(a).

[0143] In the catheter fixture 200 of this embodiment, the process of attaching the first member 110, the second member 120, and the third member 130 is the same as in the above-described first embodiment.

[0144] After the third member 130 is attached, the fourth member 140 is attached on the catheter 5. At this time, the fourth member 140 and the first member 110 are attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110. When the fourth member 140 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 becomes even less likely to come out of the puncture part 51, and the catheter 5 can be fixed more reliably.

[0145] The fourth member 140 is preferably affixed so as to cover the connecting member 53 of the catheter 5. By affixing the fourth member 140 so as to cover the connecting member 53 of the catheter 5, movement of the catheter 5 in the width direction can be further suppressed. Furthermore, by covering only the catheter hub 52 with the second base 121, when the connection between the catheter hub 52 and the connecting member 53 is to be separated, it is only necessary to peel off the fourth member 140, making it easier to separate them.

[0146] Furthermore, when the fourth member 140 has the recesses 141a and 141b, it is preferable that the recesses 141a and 141b are attached so as to conform to the shape of the catheter 5. The recesses 141a and 141b allow the fourth member 140 to be attached so as to conform to the shape of the catheter 5, so that floating between the body surface and the catheter 5 is less likely to occur, and movement of the catheter 5 in the width direction can be further suppressed.

[0147] That is, the method for fixing the catheter in this embodiment includes the following steps (a) to (f); (a) attaching a first member to a body surface; (b) fixing the catheter to the first base with an adhesive layer on the upper surface of the first base; (c) attaching a second member over the catheter; (d) attaching the second member to a body surface by the adhesive layer on the bottom surface of the plurality of extension portions; (e) attaching a third member onto the second member; (f) attaching a fourth member onto the catheter; In the step (c), the first member and the second member are bonded together so that at least a part of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the second base, In the step (e), the third member is attached to the body surface by the adhesive layer on the bottom surface of the frame portion, and the second member and the third member are bonded together by the adhesive layer on the bottom surface of the frame portion and the adhesive layer on the bottom surface of the window portion; In the above step (f), the fourth member and the first member are bonded together so that at least a part of the catheter is sandwiched between the adhesive layer on the bottom surface of the fourth base and the adhesive layer on the top surface of the first base. When the third member is not used, one more fourth member may be further bonded to cover at least a part of the cutout portion so as not to impair the visibility of, for example, a transparent film tape disposed in the cutout portion between the two first extension portions of the second member.

[0148] As described above, in the catheter fixing device of this embodiment, the fourth member and the first member are bonded together so that at least a portion of the catheter is sandwiched between the adhesive layer on the bottom surface of the fourth member and the adhesive layer on the top surface of the first member, so that the catheter is surrounded by the adhesive layer in both the vertical and horizontal directions, preferably in both the vertical and horizontal directions, and more preferably 360 degrees all around. This makes the catheter even less likely to come out of the puncture site, and allows the catheter to be more securely fixed.

[0149] Furthermore, in the catheter fixing device of this embodiment, the fourth member has a recessed portion which makes it easy to align the catheter, and further, by being attached to conform to the shape, floating between the body surface and the catheter is less likely to occur, further suppressing movement of the catheter in the width direction.

[0150] <3. Another method of using the catheter fixing device 200> Hereinafter, an example of another method of using the catheter fixture 200 of this embodiment will be described with reference to Figures 10 and 11. Figure 10(a) is a schematic plan view showing a state in which the fourth member 140 is inserted under the catheter 5. Figure 10(b) is a schematic plan view showing a state in which one end of the fourth member 140 is folded back, and Figure 11(a) is a schematic plan view showing a state in which the other end of the fourth member 140 is folded back. Figure 11(b) is a schematic side view of Figure 11(a).

[0151] In the catheter fixture 200 of this embodiment, the process of attaching the first member 110, the second member 120, and the third member 130 is the same as in the above-described first embodiment.

[0152] After attaching the third member 130, as shown in FIG. 10(a), the bottom surface of the fourth member 140 is placed facing up and inserted under the catheter 5 so that the adhesive layer on the bottom surface is in contact with the catheter 5.

[0153] 10(b), one end of the fourth member 140 is folded back and attached to cover the catheter 5. At this time, one end of the fourth member 140 is attached to the third member 130 by the adhesive layer on the bottom surface of the fourth member 140.

[0154] Finally, the other end of the fourth member 140 is similarly attached so as to cover the catheter 5, and fixed as shown in FIG. 11(a).

[0155] In this embodiment, the order in which the third member 130 and the fourth member 140 are attached may be reversed.

[0156] That is, the method for fixing the catheter in this embodiment includes the following steps (a) to (h); (a) attaching a first member to a body surface; (b) fixing the catheter to the first base with an adhesive layer on the upper surface of the first base; (c) attaching a second member over the catheter; (d) attaching the second member to a body surface by the adhesive layer on the bottom surface of the plurality of extension portions; (e) attaching a third member onto the second member; (f) inserting a fourth member under the catheter with the adhesive layer on the bottom surface of the fourth base facing up; (g) folding back one end of the fourth member to cover the catheter and attaching it onto the third member; (h) folding back the other end of the fourth member to cover the catheter and attaching it onto the third member; In the step (c), the first member and the second member are bonded together so that at least a part of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the second base, In the step (e), the third member is attached to the body surface by the adhesive layer on the bottom surface of the frame portion, and the second member and the third member are bonded together by the adhesive layer on the bottom surface of the frame portion; In the above steps (g) and (h), the fourth member and the third member are bonded together by the adhesive layer on the bottom surface of the fourth base.

[0157] By attaching the fourth member in the manner described above, the catheter fixing device of this embodiment can reliably fix the catheter even when the catheter is inserted at a position close to the finger and the fourth member cannot be attached to the back of the hand LH as in <2. Method of using the catheter fixing device 200>.

[0158] What has been described above about the catheter fixing device of the second embodiment of the present invention can be applied to the catheter fixing device of the first embodiment of the present invention described above and the catheter fixing devices of the third to fifth embodiments of the present invention described below, unless there is any particular technical contradiction.

[0159] Third Embodiment Fig. 16(a) is a schematic plan view of a third member 130' of the third embodiment, and Fig. 16(b) is a schematic cross-sectional view taken along line A-A' in Fig. 16(a). Also, Fig. 17 is a schematic view showing an example of a method of using the catheter fixing device 300 of the third embodiment.

[0160] The catheter fixing device 300 according to the third embodiment of the present invention includes the first member 110 and the third member 130′ described in the first embodiment, and the fourth member 140 described in the second embodiment. Note that the catheter fixing device 300 does not necessarily have to include the fourth member 140.

[0161] <1. Third member 130'> The third member 130' of this embodiment is a modified example of the third member 130, and has a layer structure similar to that of the third member 130. That is, the first film 23a' shown in Fig. 16(b) corresponds to the first film 23a shown in Fig. 4(c), and the second film 23b' shown in Fig. 16(b) corresponds to the second film 23b shown in Fig. 4(c).

[0162] The third member 130' has a window portion 131' through which the puncture site of the catheter 5 can be observed, and a frame portion 132' provided around the outer periphery of the window portion.

[0163] The window portion 131' has a shape (eg, approximately triangular) different from the shape of the window portion 131 (eg, approximately inverted triangle).

[0164] The shape of the third member 130' may be appropriately selected depending on the site to which the catheter 5 is fixed. That is, it is not limited to the approximate trapezoidal shape as shown in Fig. 16(a), and may be, for example, a circular shape, an elliptical shape, a triangular shape, a diamond shape, or a rectangular shape.

[0165] The size of the third member 130' may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, etc., but it is preferable that the width is 3 to 8 cm and the length is 2 to 7 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3.5 to 7.5 cm and the length is 2.5 to 6 cm.

[0166] (1) Window portion 131' and frame portion 132' The window portion 131' is a portion through which the puncture site of the catheter 5 is observed. The window 131' may be composed only of the third base material 23 (see FIG. 4(b)). Alternatively, the window 131' may have a top surface and a bottom surface, and include an adhesive layer 33 (see FIG. 4(b)) that covers at least a portion of the bottom surface of the window 131', with the third base material 23 provided on the top surface of the adhesive layer 33. Since the transparency of the window 131' increases when it adheres to the skin, making it easier to observe the catheter puncture site, it is preferable to provide the adhesive layer 33 on the entire surface.

[0167] The frame portion 132' is a portion that is attached to the first member 110 and the body surface. The frame portion 132' has a top surface and a bottom surface, and includes an adhesive layer 33 (see FIG. 4(b)) that covers at least a part of the bottom surface of the frame portion 132'. The frame portion 132' may include a third base material 23 on the top surface of the adhesive layer 33.

[0168] The shape of the window 131' may be any shape as long as the puncture part of the catheter 5 can be visually confirmed after the catheter 5 is fixed. That is, as shown in FIG. 16(a), the window 131' is not limited to a substantially triangular shape, but may be, for example, an inverted triangular shape, a circular shape, an elliptical shape, a trapezoidal shape, or a rectangular shape. From the viewpoint of making the puncture part of the catheter 5 easy to observe and reliably fixing the third member 130' to the first member 110 and the body surface, it is preferable that the width of the window 131' is shorter toward the puncture direction of the catheter 5. In addition, from the viewpoint of suppressing the expansion and contraction of the skin around the puncture part of the catheter 5, it is preferable that the width of the window 131' is longer toward the puncture direction of the catheter 5.

[0169] The size of window 131' may be appropriately selected depending on the visibility of the puncture site of catheter 5, but it is preferable that the width is 0.5 to 4 cm and the length is 0.5 to 6 cm. From the viewpoint of fixation of catheter 5, it is more preferable that the width is 1 to 3 cm and the length is 1 to 5 cm.

[0170] The size of frame portion 132' may be appropriately selected depending on the site to which catheter 5 is fixed and the required fixing force, but it is preferable that the width is 2 to 8 cm and the length is 2 to 8 cm. From the viewpoint of fixation of catheter 5, it is more preferable that the width is 2.5 to 7.5 cm and the length is 2.5 to 7 cm.

[0171] 2. How to Use the Catheter Fixing Device 300 An example of a method of using the catheter fixture 300 of this embodiment will be described below with reference to Fig. 17. Fig. 17 is a schematic plan view showing a state in which the first member 110, the third member 130', and the fourth member 140 are attached.

[0172] The catheter fixing device 300 is used in a procedure generally similar to that of the catheter fixing device 100 (except for the step of attaching the second member 120), and therefore will be described with appropriate omission of illustrations.

[0173] First, the catheter 5 is inserted into the body surface, and the first member 110 is inserted under the catheter 5. At this time, the first member 110 is attached to the body surface by the adhesive layer 31b on the bottom surface of the first base 111, and the catheter 5 is fixed to the first base 111 by the adhesive layer 31a on the upper surface of the first base 111. The adhesive layer 31a on the upper surface of the first base 111 allows the catheter 5 to be temporarily fixed at the stage when the catheter 5 is placed on the first base 111, and the catheter 5 becomes difficult to come out of the puncture part 51. By temporarily fixing the catheter 5 with the first member 110, the subsequent fixing work can be performed with peace of mind.

[0174] Next, the third member 130' is attached on the first member 110. At this time, the third member 130' is attached to the body surface by the adhesive layer 33 on the bottom surface of the frame portion 132', and the first member 110 and the third member 130' are attached to each other so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first base portion 111 and the adhesive layer 33 on the bottom surface of the frame portion 132'. When the catheter 5 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first member 110 and the adhesive layer 33 on the bottom surface of the third member 130', the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 is not easily removed from the puncture portion 51, and the catheter 5 can be reliably fixed. In addition, the puncture portion 51 of the catheter 5 can be protected by attaching the third member 130'. Furthermore, by providing window portion 131' in third member 130', visibility of puncture portion 51 can be ensured.

[0175] The third member 130' is preferably attached such that the frame portion 132' does not cover the connecting member 53 of the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the frame portion 132' so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the third member 130' can be suppressed, and movement of the catheter 5 can be further suppressed. Furthermore, by covering only the catheter hub 52 with the frame portion 132', the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0176] After the third member 130' is attached, the fourth member 140 is attached on the catheter 5. At this time, the fourth member 140 and the first member 110 are attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110. When the fourth member 140 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 becomes even less likely to come out of the puncture part 51, and the catheter 5 can be fixed more reliably.

[0177] The fourth member 140 is preferably affixed so as to cover the connecting member 53 of the catheter 5. By affixing the fourth member 140 so as to cover the connecting member 53 of the catheter 5, movement of the catheter 5 in the width direction can be further suppressed. Furthermore, by covering only the catheter hub 52 with the frame portion 132', when the connection between the catheter hub 52 and the connecting member 53 is to be separated, it is only necessary to peel off the fourth member 140, making separation easier.

[0178] Furthermore, when the fourth member 140 has recesses 141a and 141b, it is preferable that the recesses 141a and 141b are attached so as to conform to the shape of the catheter 5. The recesses 141a and 141b make it easy to align the fourth member 140 with the catheter 5 and further allow the fourth member 140 to be attached so as to conform to the shape, so that floating is less likely to occur between the body surface and the catheter 5, and movement of the catheter 5 in the width direction can be further suppressed.

[0179] FIG. 18(a) is a schematic plan view of a third member 130″ according to a modified example of the third embodiment, and FIG. 18(b) is a schematic cross-sectional view taken along line A-A′ in FIG. 18(a). Also, FIG. 19 is a schematic view showing an example of a method of using a catheter fixing device 300′ according to a modified example of the third embodiment.

[0180] The catheter fixing device 300' comprises the first member 110 and the third member 130" described in the first embodiment, and the fourth member 140 described in the second embodiment. In other words, the catheter fixing device 300' has a configuration in which the third member 130' in the catheter fixing device 300 is replaced with the third member 130". Note that the catheter fixing device 300' does not necessarily have to comprise the fourth member 140.

[0181] <3. Third member 130"> The third member 130″ is another modified example of the third member 130 and has a layer structure similar to the layer structure of the third member 130. That is, the first film 23a″ shown in FIG. 18(b) corresponds to the first film 23a shown in FIG. 4(c), and the second film 23b″ shown in FIG. 18(b) corresponds to the second film 23b shown in FIG. 4(c).

[0182] The third member 130'' has a window portion 131'' through which the puncture site of the catheter 5 can be observed, and a frame portion 132'' provided around the outer periphery of the window portion. The window portion 131'' has an approximately rhombus shape, which is different from the shape of the window portion 131 (e.g., approximately an inverted triangle).

[0183] The shape of the third member 130'' may be appropriately selected depending on the site to which the catheter 5 is fixed. In other words, it is not limited to a substantially trapezoidal shape as shown in FIG. 18(a), and may be, for example, a circular shape, an elliptical shape, a triangular shape, a diamond shape, or a rectangular shape.

[0184] The size of the third member 130" may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, and the like, but it is preferable that the width is 3 to 8 cm and the length is 2 to 7 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 3.5 to 7.5 cm and the length is 2.5 to 6 cm.

[0185] (1) Window portion 131″ and frame portion 132″ The window portion 131" is a portion for observing the puncture site of the catheter 5. The window portion 131" may be composed only of the third base material 23 (see Figure 4(b)). Alternatively, the window portion 131" may have a top and bottom surface, and be provided with an adhesive layer 33 (see Figure 4(b)) covering at least a portion of the bottom surface of the window portion 131", with the third base material 23 provided on the top surface of the adhesive layer 33. Since the transparency of the window portion 131" increases when it adheres to the skin, making it easier to observe the catheter puncture site, it is preferable to provide the adhesive layer 33 on the entire surface.

[0186] The frame portion 132'' is a portion that is attached to the first member 110 and the body surface. The frame portion 132" has a top surface and a bottom surface, and is provided with an adhesive layer 33 (see FIG. 4(b)) covering at least a portion of the bottom surface of the frame portion 132". The frame portion 132" may be provided with a third base material 23 on the top surface of the adhesive layer 33.

[0187] The shape of the window 131" may be any shape as long as the puncture site of the catheter 5 can be visually confirmed after the catheter is fixed. That is, as shown in FIG. 18(a), the window 131" is not limited to a substantially rhombus shape, but may be, for example, a triangular shape, an inverted triangular shape, a circular shape, an elliptical shape, a trapezoidal shape, a rectangular shape, or the like. From the viewpoint of making it easy to observe the puncture site of the catheter 5 and reliably fixing the third member 130" to the first member 110 and the body surface, it is preferable that the width direction of the window 131" is shorter in the puncture direction of the catheter 5. Furthermore, from the viewpoint of suppressing expansion and contraction of the skin around the puncture site of the catheter 5, it is preferable that the width direction of the window 131" is longer in the puncture direction of the catheter 5.

[0188] The size of window 131'' may be appropriately selected depending on factors such as the visibility of the puncture site of catheter 5, but it is preferable that the width be 0.5 to 4 cm and the length be 0.5 to 6 cm. From the viewpoint of fixation of catheter 5, it is more preferable that the width be 1 to 3 cm and the length be 1 to 5 cm.

[0189] The size of frame part 132" may be appropriately selected depending on the site to which catheter 5 is fixed and the required fixing force, etc., but it is preferable that the width is 2 to 8 cm and the length is 2 to 8 cm. From the viewpoint of fixation of catheter 5, it is more preferable that the width is 2.5 to 7.5 cm and the length is 2.5 to 7 cm.

[0190] In the catheter fixture 300', the process of attaching the first member 110, the third member 130'', and the fourth member 140 is the same as in the third embodiment described above.

[0191] That is, the method for fixing the catheter in this embodiment and the modified example includes the following steps (a) to (e); (a) attaching a first member to a body surface; (b) fixing the catheter to the first base with an adhesive layer on the upper surface of the first base; (c) attaching a third member onto the catheter; (d) attaching the third member to a body surface with the adhesive layer on the bottom surface of the third member; (e) attaching a third member onto the first member; In the step (c), the first member and the third member are bonded together so that at least a part of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the frame part of the third member, In the above step (e), the third member is attached to the body surface by the adhesive layer on the bottom surface of the frame portion, and the first member and the third member are bonded together by the adhesive layer on the upper surface of the first base and the adhesive layer on the bottom surface of the frame portion.

[0192] The method may further include a step (f) of attaching a fourth member onto the catheter, and in step (f), the fourth member and the first member may be attached to each other so that at least a portion of the catheter is sandwiched between the adhesive layer on the bottom surface of the fourth base and the adhesive layer on the top surface of the first base.

[0193] The contents described above regarding the catheter fixing device of the third embodiment of the present invention can be applied to the catheter fixing devices of the first and second embodiments of the present invention described above and the catheter fixing devices of the fourth and fifth embodiments of the present invention described below, unless there is any particular technical contradiction.

[0194] [Fourth embodiment] Fig. 20 is a schematic plan view of the fifth member 150 in the fourth embodiment. Fig. 21 is a schematic view showing an example of a method of using the catheter fixture 400 of the fourth embodiment.

[0195] As shown in FIG. 21, a catheter fixing device 400 according to a fourth embodiment of the present invention comprises a first member 110 described in the first embodiment, a fourth member 140 described in the second embodiment, and a fifth member 150. The catheter fixture 400 does not necessarily have to include the fourth member 140.

[0196] <1. Fifth member 150> The fifth member 150 of this embodiment is a transparent resin tape, film, or sheet, and is a member that is attached to the first member 110 and the body surface as shown in FIG.

[0197] The shape of the fifth member 150 may be appropriately selected depending on the site to which the catheter 5 is fixed. That is, it is not limited to the approximate fingertip shape as shown in Fig. 20, and may be, for example, a circle, an ellipse, a triangle, an inverted triangle, a diamond, a rectangle, or the like.

[0198] The size of the fifth member 150 may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, the visibility of the catheter 5, etc., but it is preferable that the width is 2 to 8 cm and the length is 2 to 6 cm. Furthermore, from the viewpoint of the fixation of the catheter 5 and the visibility of the catheter 5, it is more preferable that the width is 3 to 7.5 cm and the length is 2.5 to 5.5 cm.

[0199] The fifth member 150 has an upper surface and a bottom surface, and is provided with a transparent adhesive layer covering at least a part of the bottom surface, and is provided with a transparent substrate on the upper surface of the adhesive layer. The fifth member 150 increases in transparency by adhering to the skin, making it easier to observe the catheter puncture site. For this reason, the fifth member 150 preferably has a transparent adhesive layer at least in the region corresponding to the catheter puncture site, and more preferably has a transparent adhesive layer in the region corresponding to the catheter puncture site and its surrounding region. In addition, the fifth member 150 preferably has a transparent adhesive layer at least in the outer periphery that is attached to the body surface, and more preferably has a transparent adhesive layer on the entire surface.

[0200] <2. How to use the catheter fixing device 400> An example of a method of using the catheter fixture 400 of this embodiment will be described below with reference to FIG.

[0201] The catheter fixing device 400 is used in a procedure generally similar to that of the catheter fixing device 100 (except that instead of affixing the second member 120, the fifth member 150 is affixed), and therefore will be described with appropriate omission of illustrations.

[0202] First, the catheter 5 is inserted into the body surface, and the first member 110 is inserted under the catheter 5. At this time, the first member 110 is attached to the body surface by the adhesive layer 31b on the bottom surface of the first base 111, and the catheter 5 is fixed to the first base 111 by the adhesive layer 31a on the upper surface of the first base 111. The adhesive layer 31a on the upper surface of the first base 111 allows the catheter 5 to be temporarily fixed at the stage when the catheter 5 is placed on the first base 111, and the catheter 5 becomes difficult to come out of the puncture part 51. By temporarily fixing the catheter 5 with the first member 110, the subsequent fixing work can be performed with peace of mind.

[0203] Next, the fifth member 150 is attached on the first member 110. At this time, the fifth member 150 is attached to the body surface by the adhesive layer on the bottom surface, and the first member 110 and the fifth member 150 are attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first base 111 and the adhesive layer on the bottom surface of the fifth member. When the catheter 5 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first member 110 and the adhesive layer on the bottom surface of the fifth member 150, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 is not easily removed from the puncture part 51, and the catheter 5 can be reliably fixed. In addition, the puncture part 51 of the catheter 5 can be protected by attaching the fifth member 150. Furthermore, since fifth member 150 is transparent, visibility of puncture part 51 can be ensured.

[0204] The fifth member 150 is preferably affixed so as not to cover the connecting member 53 of the catheter 5. By affixing the fifth member 150 so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the fifth member 150 is suppressed, and movement of the catheter 5 can be further suppressed. In addition, by covering only the catheter hub 52 with the fifth member 150, the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0205] After the fifth member 150 is attached, the fourth member 140 is attached on the catheter 5. At this time, the fourth member 140 and the first member 110 are attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110. When the fourth member 140 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 becomes even more difficult to come out of the puncture part 51, and the catheter 5 can be fixed more reliably.

[0206] The fourth member 140 is preferably affixed so as to cover the connecting member 53 of the catheter 5. By affixing the fourth member 140 so as to cover the connecting member 53 of the catheter 5, movement of the catheter 5 in the width direction can be further suppressed. Furthermore, by covering only the catheter hub 52 with the fifth member 150, when the connection between the catheter hub 52 and the connecting member 53 is to be separated, it is only necessary to peel off the fourth member 140, making separation easier.

[0207] Furthermore, when the fourth member 140 has the recesses 141a and 141b, it is preferable that the recesses 141a and 141b are attached so as to conform to the shape of the catheter 5. The recesses 141a and 141b make it easy to align the fourth member 140 with the catheter 5, and furthermore, since the fourth member 140 can be attached so as to conform to the shape, floating is less likely to occur between the body surface and the catheter 5, and movement of the catheter 5 in the width direction can be further suppressed.

[0208] FIG. 22 is a schematic diagram showing an example of a method of using a catheter fixture 400' according to a modified example of the fourth embodiment.

[0209] As shown in Fig. 22, the catheter fixing device 400' includes the first member 110 and the third member 130 described in the first embodiment, the fourth member 140 described in the second embodiment, and the fifth member 150. Note that Fig. 22 is a schematic plan view showing the state in which the first member 110, the third member 130, the fourth member 140, and the fifth member 150 are attached.

[0210] That is, the catheter fixing device 400' has a configuration in which the third member 130 is added to the catheter fixing device 400. Note that the catheter fixing device 400' does not necessarily have to include at least one of the third member 130 and the fourth member 140. In the catheter fixing device 400', the fifth member 150 may have a transparent adhesive layer on its top surface in addition to the transparent adhesive layer on its bottom surface.

[0211] <3. How to use the catheter fixing device 400'> An example of a method of using the catheter fixture 400' according to a modified example of this embodiment will be described below with reference to FIG.

[0212] The catheter fixing device 400' is generally similar to the catheter fixing device 100 (except for the first In this embodiment, a fifth member 150 is attached instead of the second member 120, and therefore, illustrations thereof will be omitted as appropriate in the description.

[0213] First, the catheter 5 is inserted into the body surface, and the first member 110 is inserted under the catheter 5. At this time, the first member 110 is attached to the body surface by the adhesive layer 31b on the bottom surface of the first base 111, and the catheter 5 is fixed to the first base 111 by the adhesive layer 31a on the upper surface of the first base 111. The adhesive layer 31a on the upper surface of the first base 111 allows the catheter 5 to be temporarily fixed at the stage when the catheter 5 is placed on the first base 111, and the catheter 5 becomes difficult to come out of the puncture part 51. By temporarily fixing the catheter 5 with the first member 110, the subsequent fixing work can be performed with peace of mind.

[0214] Next, the fifth member 150 is attached on the first member 110. At this time, the fifth member 150 is attached to the body surface by the adhesive layer on the bottom surface, and the first member 110 and the fifth member 150 are attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first base 111 and the adhesive layer on the bottom surface of the fifth member. When the catheter 5 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer 31a on the upper surface of the first member 110 and the adhesive layer on the bottom surface of the fifth member 150, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 is not easily removed from the puncture part 51, and the catheter 5 can be reliably fixed. In addition, the puncture part 51 of the catheter 5 can be protected by attaching the fifth member 150. Moreover, since the fifth member 150 is transparent, the visibility of the puncture site 51 can be ensured. The fifth member 150 is preferably attached so as not to cover the connecting member 53 of the catheter 5. By attaching the fifth member 150 so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the fifth member 150 can be suppressed, and the movement of the catheter 5 can be further suppressed. Furthermore, by covering only the catheter hub 52 with the fifth member 150, the connection between the catheter hub 52 and the connecting member 53 can be easily separated.

[0215] Next, the third member 130 is attached onto the fifth member 150. At this time, the third member 130 is attached to the body surface by the adhesive layer 33 on the bottom surface of the frame portion 132, and the fifth member 150 and the third member 130 are attached together by the adhesive layer 33 on the bottom surface of the frame portion 132. The window portion 131 provided in the third member 130 ensures visibility of the puncture portion 51.

[0216] The third member 130 is preferably attached so that the frame portion 132 does not cover the connecting member 53 of the catheter 5 and does not cover the puncture portion 51 of the catheter 5. By attaching the frame portion 132 so as not to cover the connecting member 53 of the catheter 5, floating between the catheter 5 and the third member 130 is suppressed, and the movement of the catheter 5 can be further suppressed.

[0217] Furthermore, even if a third member 130 is attached onto the first member 110, and then a fifth member 150 is attached onto the third member 130, the movement of the catheter 5 can be prevented and the catheter 5 can be fixed.

[0218] Finally, the fourth member 140 is attached onto the catheter 5. At this time, the fourth member 140 and the first member 110 are attached together so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110. When the fourth member 140 is attached so that at least a part of the catheter 5 is sandwiched between the adhesive layer on the bottom surface of the fourth member 140 and the adhesive layer 31a on the top surface of the first member 110, the catheter 5 is surrounded by the adhesive layer in the vertical direction, preferably in the vertical and horizontal directions, and more preferably 360 degrees around. Therefore, the catheter 5 becomes even less likely to come out of the puncture part 51, and the catheter 5 can be fixed more reliably.

[0219] The fourth member 140 is preferably affixed so as to cover the connecting member 53 of the catheter 5. By affixing the fourth member 140 so as to cover the connecting member 53 of the catheter 5, movement of the catheter 5 in the width direction can be further suppressed. Furthermore, by covering only the catheter hub 52 with the fifth member 150, when the connection between the catheter hub 52 and the connecting member 53 is to be separated, it is only necessary to peel off the fourth member 140, making separation easier.

[0220] Furthermore, when the fourth member 140 has recesses 141a and 141b, it is preferable that the recesses 141a and 141b are attached so as to conform to the shape of the catheter 5. The recesses 141a and 141b make it easy to align the fourth member 140 with the catheter 5 and further allow the fourth member 140 to be attached so as to conform to the shape, so that floating is less likely to occur between the body surface and the catheter 5, and movement of the catheter 5 in the width direction can be further suppressed.

[0221] In this modified example, the order in which the third member 130 and the fourth member 140 are attached may be reversed.

[0222] That is, the method for fixing the catheter in this embodiment and the modified example includes the following steps (a) to (d); (a) attaching a first member to a body surface; (b) fixing the catheter to the first base with an adhesive layer on the upper surface of the first base; (c) attaching a fifth member onto the catheter; (d) attaching the fifth member to the body surface with the adhesive layer on the bottom surface of the fifth member; In the above step (c), the first member and the fifth member are attached to each other so that at least a part of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the fifth member.

[0223] The method may further include a step (e) of attaching a third member onto the fifth member, and in the step (e), the third member is attached to the body surface by an adhesive layer on the bottom surface of the third member, and the fifth member and the third member are preferably attached to each other by an adhesive layer on the bottom surface of the frame part. Also, in the step (e), the fifth member and the third member may be attached to each other by an adhesive layer on the bottom surface of the frame part and an adhesive layer on the top surface of the fifth member.

[0224] The method may further include a step (f) of attaching a fourth member onto the catheter, and in step (f), the fourth member and the first member may be attached to each other so that at least a portion of the catheter is sandwiched between the adhesive layer on the bottom surface of the fourth base and the adhesive layer on the top surface of the first base.

[0225] What has been described above about the catheter fixing device of the fourth embodiment of the present invention can be applied to the catheter fixing devices of the first to third embodiments of the present invention described above and the catheter fixing device of the fifth embodiment of the present invention described below, unless there is any particular technical contradiction.

[0226] Fifth embodiment A catheter fixing device according to a fifth embodiment of the present invention is composed of a first member. The first member has a first base for fixing at least a part of a catheter. The first base has a top surface and a bottom surface, and is provided with an adhesive layer covering at least a part of each of the top surface and the bottom surface of the first base. The first base may have cushioning properties.

[0227] The first member may further include a cushioning material, the cushioning material having a top surface and a bottom surface, the cushioning material including an adhesive layer covering at least a part of the top surface of the cushioning material, and the first base and the cushioning material may be bonded together by the adhesive layer on the top surface of the first base. When the catheter is fixed, the catheter may be placed on the adhesive layer on the top surface of the cushioning material.

[0228] The first member constituting the catheter fixing device of the fifth embodiment according to the present invention may be the above-described first member 110 or first member 110-1. When fixing the catheter, a known film dressing and / or a known surgical tape may be used together with the catheter fixing device of the fifth embodiment according to the present invention.

[0229] The contents described above regarding the catheter fixing device of the fifth embodiment of the present invention can be applied to the catheter fixing devices of the first to fourth embodiments of the present invention described above, unless there is any particular technical contradiction.

[0230] Sixth embodiment A catheter fixing device according to a sixth embodiment of the present invention will be described with reference to Figs. 23 to 25. Fig. 23 is a schematic diagram showing a state in which a second member 120 and a sixth member 160 constituting a catheter fixing device according to the sixth embodiment of the present invention are bonded together. Figs. 24 and 25 are schematic diagrams showing an example of a method of using the catheter fixing device 500 according to the sixth embodiment of the present invention.

[0231] The catheter fixing device 500 of the sixth embodiment according to the present invention includes a sixth member 160 and two fourth members 140-1 and 140-2, in addition to the above-mentioned first member 110 and second member 120. The catheter fixing device 500 of the sixth embodiment according to the present invention may include three or more fourth members.

[0232] <1. Sixth member 160> An explanation will be given with reference to Fig. 23. Fig. 23(a) is a schematic plan view in which a sixth member 160 is bonded onto a second member 120, and Fig. 23(b) is a schematic cross-sectional view taken along line A23-A'23 in Fig. 23(a). Note that the second member 120 is as described above, and therefore a detailed explanation will be omitted here.

[0233] As shown in FIG. 23( a ), a sixth member 160 (sometimes referred to as a film dressing) has a shape that covers the entire second member 120 and is attached to the second member 120 . The sixth member 160 is defined by a side corresponding to the upper side (end side) 120H-1 of the second base 121 of the second member 120, a side corresponding to the left side 120H-2 of the second member 120, a side corresponding to the lower side (end side) 120H-3 of the first extension portion 122a, a side corresponding to the lower side (end side) 120H-4 of the first extension portion 122b, a side corresponding to the right side 120H-5 of the second member 120, and a side connecting the lower side (end side) 120H-3 of the first extension portion 122a and the lower side (end side) 120H-4 of the first extension portion 122b, and has a trapezoidal shape in a planar view. The area between the first extension portion 122a and the first extension portion 122b of the sixth member 160 (i.e., a triangular area having a base that is the side connecting the lower side (end side) 120H-3 of the first extension portion 122a and the lower side (end side) 120H-4 of the first extension portion 122b) serves as a window when the sixth member 160 is a transparent member, and the window allows the puncture site through which the catheter is inserted to be observed.

[0234] As shown in FIG. 23(b), in order from the bottom (from the body surface side) of FIG. 23(b), the adhesive layer 32 constituting the second member 120, the second base material 22 constituting the second member 120, the adhesive layer 320 constituting the sixth member 160, and the sixth base material 220 constituting the sixth member 160 are laminated. A release paper may be arranged on the surface (body surface side) opposite to the surface on which the second base material 22 is laminated of the adhesive layer 32 constituting the second member 120, and the release paper may be peeled off when the adhesive layer 320 is attached to the body surface. The surface on which the adhesive layer 320 constituting the sixth member 160 of the second base material 22 constituting the second member 120 is laminated is coated with polypropylene, polyethylene, or the like, so that the second member 120 and the sixth member 160 are easily separated. Therefore, while the catheter 5 is fixed by the second member 120 (and the first member 110), the sixth member 160 whose adhesive strength has decreased due to adhesion of sweat, etc., can be replaced with a new sixth member 160 having a predetermined adhesive strength, or with a film dressing other than the sixth member 160, thereby making it possible to fix the catheter 5 more securely.

[0235] When the sixth substrate 220 is made of a plastic substrate made of synthetic resin, specific materials include, for example, polyurethane; polyesters such as polyethylene terephthalate and polybutylene terephthalate; polyamides such as nylon 6 and nylon 66; polyolefins such as polyethylene, low-density polyethylene, high-density polyethylene, and polypropylene; olefin copolymers such as ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), ethylene-methyl acrylate copolymer (EMA), ethylene-methyl methacrylate copolymer (EMMA), ethylene-methacrylic acid polymer (EMAA), and ethylene-acrylic acid copolymer (EAA); polyvinyl alcohol; polyvinyl chloride, polyvinylidene chloride; polystyrene; silicone, and the like. These materials can be used alone or in combination of two or more kinds.

[0236] <2. Fourth members 140-1 and 140-2> The sizes of the fourth members 140-1 and 140-2 shown in Figures 24 and 25 may be appropriately selected depending on the thickness of the catheter 5, the site to which the catheter 5 is fixed, etc., but it is preferable that the width is 0.5 to 3 cm and the length is 4 to 12 cm. From the viewpoint of fixation of the catheter 5, it is more preferable that the width is 1 to 2 cm and the length is 5 to 10 cm. As shown in Figure 24(a), the length of the fourth member 140-2 is longer than the length of the fourth member 140-1 because the end of the fourth member 140-2 is folded back to cover the catheter 5.

[0237] The fourth members 140-1 and 140-2 may have a recessed portion, like the fourth member 140 shown in Fig. 8. The details of the recessed portion are as described above, and therefore will not be described here in detail.

[0238] Each of the fourth members 140-1 and 140-2 of this embodiment has a fourth base that fixes at least a part of the catheter 5. The fourth base has an upper surface and a bottom surface, and is provided with an adhesive layer that covers at least a part of the bottom surface of the fourth base. The fourth base may have a fourth substrate on the upper surface of the adhesive layer. Details of the fourth base are as described above, so a detailed description will be omitted here.

[0239] <3. How to use the catheter fixing device 500> An example of a method of using the catheter fixture 500 of this embodiment will be described below with reference to Figs. 24 and 25. Fig. 24(a) is a schematic plan view showing a state in which the first member 110, the second member 120, the sixth member 160, and the fourth member 140-1 are attached, and the fourth member 140-2 is inserted under the catheter 5. Fig. 24(b) is a schematic plan view showing a state in which one end (left end) of the fourth member 140-2 is folded back, and Fig. 25(a) is a schematic plan view showing a state in which the other end (right end) of the fourth member 140-2 is folded back. Fig. 25(b) is a schematic side view of Fig. 25(a).

[0240] In the catheter fixture 200 of this embodiment, the process of attaching the first member 110 and the second member 120 to which the sixth member is attached is the same as in the first embodiment described above.

[0241] Next, after the second member 120 is attached, the fourth member 140-1 is attached onto the catheter 5. At this time, the fourth member 140-1 is attached to the body surface, sandwiching the catheter connection member 53 and the first member 110. By fixing the catheter connection member 53 with the adhesive layer on the bottom surface of the fourth member 140-1, the catheter 5 becomes even less likely to come out of the puncture site 51, and the catheter 5 can be fixed more reliably.

[0242] The fourth member 140-1 is attached so as to cover the connecting member 53 of the catheter. Note that the fourth member 140-1 may be attached so as to cover at least a part of the connecting member 53 of the catheter.

[0243] Furthermore, when the fourth member 140-1 has a recess, it is preferable to attach the recess so as to conform to the shape of the catheter 5. The recess allows the fourth member 140-1 to be symmetrically attached to the catheter 5, and allows the fourth member 140-1 to be attached so as to conform to the shape of the catheter 5, making it difficult for floating to occur between the body surface and the catheter 5, and further suppressing movement of the catheter 5 in the width direction.

[0244] Next, the fourth member 140-2 is inserted under the catheter 5 with its bottom surface facing up and the adhesive layer on the bottom surface in contact with the catheter member 54 on the upper side of the catheter connecting member 53 (the side opposite the catheter hub 52).

[0245] 24(b), one end (left end) of the fourth member 140-2 is folded back and attached to cover the catheter 5. At this time, one end (left end) of the fourth member 140-2 is attached to the fourth member 140-1 and the sixth member 160 by the adhesive layer on the bottom surface of the fourth member 140-2.

[0246] Finally, the other end (right end) of the fourth member 140-2 is similarly attached so as to cover the catheter 5 and fixed as shown in Fig. 25(a). Incidentally, the right end of the fourth member 140-2 may be folded back first, and then the left end of the fourth member 140-2 may be folded back to fix the catheter 5.

[0247] In order to prevent the sixth member from floating up due to a decrease in adhesive strength of the sixth member caused by sweat from the body surface or the like, a third fourth member (not shown) may be attached to the bottom side 160-1 of the trapezoidal sixth member 160 shown in Figure 25(a).

[0248] That is, the method for fixing a catheter in this embodiment includes the following steps (a) to (i); (a) attaching a first member to a body surface; (b) fixing the catheter to the first base with an adhesive layer on the upper surface of the first base; (c) attaching a second member over the catheter; (d) attaching a sixth member onto the second member; (e) attaching the second member to which the sixth member is attached to a body surface by the adhesive layer on the bottom surfaces of the plurality of extensions; (f) attaching a fourth member 1 to the connecting member 53 of the catheter and the first member; (g) inserting the fourth member 2 under the catheter (catheter member 54) with the adhesive layer on the bottom surface of the fourth base facing up; (h) folding back one end of the fourth member 2 to cover the catheter and attaching it onto the fourth member 1 and the sixth member; (i) folding back the other end of the fourth member 2 to cover the catheter and attaching it onto the fourth member 1 and the sixth member; In the step (c), the first member and the second member are bonded together so that at least a part of the catheter is sandwiched between the adhesive layer on the top surface of the first base and the adhesive layer on the bottom surface of the second base, In the step (d), the second member and the sixth member are bonded together by the adhesive layer on the bottom surface of the sixth member such that the sixth member covers the second member; In the above steps (h) and (i), the fourth member 2, the fourth member 1 and the sixth member are bonded together by the adhesive layer on the bottom surface of the fourth base 2 of the fourth member 2.

[0249] The contents described above regarding the catheter fixing device of the sixth embodiment of the present invention can be applied to the catheter fixing devices of the first to fifth embodiments of the present invention described above, unless there is any particular technical contradiction.

[0250] The present invention can also have the following configuration. [1] a first member having a first base for securing at least a portion of the catheter; a second member having a second base to which at least a portion of the catheter is secured; the first base having a top surface and a bottom surface; the first base comprises an adhesive layer covering at least a portion of each of the top surface and the bottom surface of the first base; the second base having a top surface and a bottom surface; the second base comprises an adhesive layer covering at least a portion of the bottom surface of the second base; When the catheter is fixed, The first member is attached to a body surface by the adhesive layer on the bottom surface of the first base, A catheter fixing device, in which the first member and the second member are attached to each other so that at least a portion of the catheter is sandwiched between an adhesive layer on the top surface of the first base and an adhesive layer on the bottom surface of the second base. [2] the second member further includes a plurality of first extensions extending from the second base; Each of the plurality of first extension portions has a top surface and a bottom surface; Each of the plurality of first extension portions includes an adhesive layer covering at least a portion of the bottom surface of each of the plurality of first extension portions; When the catheter is fixed, The catheter fixing device described in [1], wherein the second member is attached to the body surface by an adhesive layer on the bottom surface of each of the plurality of first extension portions so that at least a portion of each of the plurality of first extension portions is located at least a portion of the outer circumference of the catheter puncture portion that punctures the catheter. [3] The plurality of first extension portions are composed of two of the first extension portions, The catheter fixing device described in [2], wherein, in a planar view from the body surface side, each of the two first extension portions extends in the puncture direction of the catheter, starting from the outer periphery of the catheter puncture portion. [4] the second member further includes a plurality of second extensions extending from the second base; Each of the plurality of second extension portions has a top surface and a bottom surface; Each of the plurality of second extension portions includes an adhesive layer covering at least a portion of the bottom surface of each of the plurality of second extension portions; Each of the plurality of second extension portions extends in a direction substantially perpendicular to the puncture direction of the catheter in a plan view from the body surface side, When the catheter is fixed, The catheter fixing device according to any one of [1] to [3], wherein the second member is attached to a body surface by the adhesive layer on the bottom surface of each of the second extension portions. [5] a window portion through which the catheter can be observed; a frame portion provided around the outer periphery of the window portion; and the window portion having a top surface and a bottom surface; the frame portion having a top surface and a bottom surface; the window portion includes an adhesive layer covering at least a portion of the bottom surface of the window portion; the frame portion includes an adhesive layer covering at least a portion of the bottom surface of the frame portion; When the catheter is fixed, the third member is attached to a body surface by the adhesive layer on the bottom surface of the window portion and the adhesive layer on the bottom surface of the frame portion; The catheter fixing device described in any one of [1] to [4], wherein the second member and the third member are bonded together by the adhesive layer on the bottom surface of the window portion and the adhesive layer on the bottom surface of the frame portion, or by the adhesive layer on the bottom surface of the frame portion. [6] At least a portion of the third member is formed by laminating a transparent film and a fiber base material, The window portion has at least the transparent film, The catheter fixing device described in [5], wherein the frame portion has at least the fiber base material. [7] The second member further includes a window portion through which the puncture site where the catheter is punctured can be observed, the window portion includes an adhesive layer covering at least a portion of the bottom surface of the window portion; The catheter fixing device described in any one of [1] to [4], wherein the second member is attached to the body surface by an adhesive layer on the bottom surface of the window portion. [8] At least a portion of the second member is formed by laminating a transparent film and a fiber base material, The window portion has at least the transparent film, The catheter fixing device described in [7], wherein at least an area other than the window area has the fiber base material. [9] the second member and the third member are bonded together by an adhesive layer on a bottom surface of the window portion and an adhesive layer on a bottom surface of the frame portion to be integrally configured, The catheter fixing device described in [5] or [6], wherein the second member and the third member are simultaneously affixed to the body surface when fixing the catheter.

[10] Further comprising a sixth member, the sixth member having a top surface and a bottom surface; the sixth member includes an adhesive layer covering at least a portion of the bottom surface of the sixth member; When the catheter is fixed, the sixth member is attached to a body surface by the adhesive layer on the bottom surface of the sixth member; The catheter fixing device described in any one of [1] to [4], wherein the second member and the sixth member are bonded together by the adhesive layer on the bottom surface of the sixth member.

[11] The catheter fixing device described in any one of [1] to

[10] , wherein the first base portion has cushioning properties.

[12] The first member further includes a cushioning material, the cushioning material having a top surface and a bottom surface; the cushioning material includes an adhesive layer covering at least a portion of the upper surface of the cushioning material; the first base and the cushioning material are bonded together by an adhesive layer on the top surface of the first base, The catheter fixing device described in any one of [1] to

[11] , wherein when fixing the catheter, the catheter is placed on the adhesive layer on the upper surface of the cushioning material.

[13] a fourth member having a fourth base for securing at least a portion of the catheter; the fourth base having a top surface and a bottom surface; the fourth base comprises an adhesive layer covering at least a portion of the bottom surface of the fourth base; A catheter fixing device described in any one of [1] to

[12] , wherein when fixing the catheter, the fourth member and the first member are attached to each other so that at least a portion of the catheter is sandwiched between an adhesive layer on the bottom surface of the fourth base and an adhesive layer on the top surface of the first base.

[14] The fourth member is provided in a plurality of pieces, When the catheter is fixed, The catheter fixing device described in

[13] , wherein, with the adhesive layer on the bottom surface of the fourth base of at least one of the plurality of fourth members facing up, the at least one fourth member is inserted under the catheter, one end of the at least one fourth member is folded back to cover the catheter and affixed onto at least one fourth member other than the at least one fourth member, and the other end of the at least one fourth member is folded back to cover the catheter and affixed onto at least one fourth member other than the at least one fourth member.

[15] A catheter fixing device described in any one of [1] to

[14] , which is for pediatric use.

[16] a first member having a first base for securing at least a portion of the catheter; the first base having a top surface and a bottom surface; A catheter fixation device, wherein the first base comprises an adhesive layer covering at least a portion of each of the top and bottom surfaces of the first base.

[17] The catheter fixing device described in

[16] , wherein the first base portion has cushioning properties.

[18] The first member further includes a cushioning material, the cushioning material having a top surface and a bottom surface; the cushioning material includes an adhesive layer covering at least a portion of the upper surface of the cushioning material; the first base and the cushioning material are bonded together by an adhesive layer on the top surface of the first base, The catheter fixing device described in

[16] or

[17] , wherein when fixing the catheter, the catheter is placed on the adhesive layer on the upper surface of the cushioning material.

[19] A catheter fixing device described in any one of

[16] to

[18] , which is for pediatric use. [Explanation of symbols]

[0251] 100, 100', 100-15, 200, 300, 300', 400, 400', 500...catheter fixture, 110, 110-1: first member, 111...first base, 112...periphery, 21... First substrate; 31a, 31b, 31c: Adhesive layer, 4. Cushioning material, 120, 120-1, 120', 120-14... second member, 121... second base, 122a, 122b...extension part, 122a', 122b'...first extension part, 122c', 122d'...second extension part, 22... A second substrate; 32... Adhesive layer, 130, 130-1, 130-2, 130', 130"...third member, 131... Window section, 132...Frame part, 23... A third substrate; 23a...First film, 23b...Second film, 33, 33a, 33b...adhesive layer, 140, 140-1, 140-2...fourth member, 150 - fifth member, 5. Catheter, 51... puncture site, 51-1: Tip of catheter, 52...catheter hub, 53... Catheter connection member, 160...sixth member, 220... A sixth substrate; 320...Adhesive layer.

Claims

1. a first member having a first base for securing at least a portion of the catheter; a second member having a second base to which at least a portion of the catheter is secured; the first base having a top surface and a bottom surface; the first base comprises an adhesive layer covering at least a portion of each of the top surface and the bottom surface of the first base; the second base having a top surface and a bottom surface; the second base comprises an adhesive layer covering at least a portion of the bottom surface of the second base; When the catheter is fixed, the first member is attached to a body surface by the adhesive layer on the bottom surface of the first base, the first member and the second member are bonded together so that at least a portion of the catheter is sandwiched between an adhesive layer on the top surface of the first base and an adhesive layer on the bottom surface of the second base; a window portion through which the catheter can be observed; a frame portion provided around the outer periphery of the window portion; and the window portion having a top surface and a bottom surface; the frame portion having a top surface and a bottom surface; the window portion includes an adhesive layer covering at least a portion of the bottom surface of the window portion; the frame portion includes an adhesive layer covering at least a portion of the bottom surface of the frame portion; When the catheter is fixed, the third member is attached to a body surface by the adhesive layer on the bottom surface of the window portion and the adhesive layer on the bottom surface of the frame portion; A catheter fixing device in which the second member and the third member are bonded together by the adhesive layer on the bottom surface of the window portion and the adhesive layer on the bottom surface of the frame portion, or by the adhesive layer on the bottom surface of the frame portion.

2. the second member further includes a plurality of first extensions extending from the second base; Each of the plurality of first extension portions has a top surface and a bottom surface; Each of the plurality of first extension portions includes an adhesive layer covering at least a portion of the bottom surface of each of the plurality of first extension portions; When the catheter is fixed, 2. The catheter fixing device according to claim 1, wherein the second member is attached to the body surface by an adhesive layer on the bottom surface of each of the plurality of first extension portions so that at least a portion of each of the plurality of first extension portions is located at least a portion of the outer circumference of the catheter puncture portion through which the catheter is inserted.

3. The plurality of first extension portions are constituted by two of the first extension portions, When viewed from the body surface side, each of the two first extension parts is 3. The catheter according to claim 2, wherein the catheter is inserted in the direction of the insertion of the catheter from the outer periphery of the portion as a starting point. Catheter fixation device.

4. the second member further includes a plurality of second extensions extending from the second base; Each of the plurality of second extension portions has a top surface and a bottom surface; Each of the second extension portions includes an adhesive layer covering at least a portion of the bottom surface of each of the second extension portions; each of the second extension portions extends in a direction substantially perpendicular to the puncture direction of the catheter in a plan view from the body surface side; When the catheter is fixed, The catheter fixing device according to claim 1 , wherein the second member is attached to a body surface by the adhesive layer on the bottom surface of each of the plurality of second extension portions.

5. At least a portion of the third member is formed by laminating a transparent film and a fiber base material, The window portion has at least the transparent film, The catheter fixing device according to any one of claims 1 to 4, wherein the frame portion has at least the fiber base material.

6. the second member and the third member are bonded together by an adhesive layer on a bottom surface of the window portion and an adhesive layer on a bottom surface of the frame portion to be integrally configured, The catheter fixing device according to any one of claims 1 to 5, wherein the second member and the third member are attached to the body surface simultaneously when the catheter is fixed.

7. a first member having a first base for securing at least a portion of the catheter; a second member having a second base to which at least a portion of the catheter is secured; the first base having a top surface and a bottom surface; the first base comprises an adhesive layer covering at least a portion of each of the top surface and the bottom surface of the first base; the second base having a top surface and a bottom surface; the second base comprises an adhesive layer covering at least a portion of the bottom surface of the second base; When the catheter is fixed, the first member is attached to a body surface by the adhesive layer on the bottom surface of the first base, the first member and the second member are bonded together so that at least a portion of the catheter is sandwiched between an adhesive layer on the top surface of the first base and an adhesive layer on the bottom surface of the second base; the second member further includes a plurality of first extensions extending from the second base; Each of the plurality of first extension portions has a top surface and a bottom surface; Each of the plurality of first extension portions includes an adhesive layer covering at least a portion of the bottom surface of each of the plurality of first extension portions; When the catheter is fixed, the second member is attached to a body surface by an adhesive layer on a bottom surface of each of the plurality of first extension portions such that at least a portion of each of the plurality of first extension portions is located at least a portion of an outer periphery of a catheter puncture portion that punctures the catheter; Further comprising a sixth member, the sixth member having a top surface and a bottom surface; the sixth member includes an adhesive layer covering at least a portion of the bottom surface of the sixth member; When the catheter is fixed, the sixth member is attached to a body surface by the adhesive layer on the bottom surface of the sixth member; the second member and the sixth member are bonded together by the adhesive layer on the bottom surface of the sixth member, A catheter fixing device, wherein the sixth member has a window portion covering a space between the plurality of first extension portions, the window portion allowing observation of the puncture portion into which the catheter is inserted.

8. The catheter fixing device according to claim 1 , wherein the first base portion has cushioning properties.

9. The first member further includes a cushioning material, the cushioning material having a top surface and a bottom surface; the cushioning material includes an adhesive layer covering at least a portion of the upper surface of the cushioning material; the first base and the cushioning material are bonded together by an adhesive layer on the upper surface of the first base, The catheter fixing device according to claim 1 , wherein when the catheter is fixed, the catheter is placed on the adhesive layer on the upper surface of the cushion material.

10. a fourth member having a fourth base for securing at least a portion of the catheter; the fourth base having a top surface and a bottom surface; the fourth base comprises an adhesive layer covering at least a portion of the bottom surface of the fourth base; 10. The catheter fixing device according to claim 1, wherein when fixing the catheter, the fourth member and the first member are attached to each other so that at least a portion of the catheter is sandwiched between an adhesive layer on the bottom surface of the fourth base and an adhesive layer on the top surface of the first base.

11. The fourth member is provided in a plurality of pieces, When the catheter is fixed, 11. The catheter fixing device according to claim 10, wherein, with the adhesive layer on the bottom surface of the fourth base of at least one of the plurality of fourth members facing up, the at least one fourth member is inserted under the catheter, one end of the at least one fourth member is folded back to cover the catheter and affixed onto at least one fourth member other than the at least one fourth member, and the other end of the at least one fourth member is folded back to cover the catheter and affixed onto at least one fourth member other than the at least one fourth member.

12. The catheter fixing device according to any one of claims 1 to 11, which is for pediatric use.

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