Catheter fixing patch

Abstract

The utility model provides a catheter fixing patch which comprises a body, and the body comprises a base body layer; the attaching part comprises a first bonding layer used for attaching the body to the skin, and the first bonding layer is a gel layer; the fixing part comprises a base sheet with a fixing surface, a left fixing sheet with a first binding surface, a right fixing sheet with a second binding surface, and a second bonding layer which is positioned between the left fixing sheet and the right fixing sheet and is used for adhering to the bottom surface of the catheter, the left fixing piece is configured to be detachably connected with the fixing face after at least one part of the left fixing piece surrounds the catheter, the right fixing piece is configured to be detachably connected with the fixing face after at least one part of the right fixing piece surrounds the catheter, the surrounding directions of the left fixing piece and the right fixing piece are opposite, and the surrounding directions of the left fixing piece and the right fixing piece are opposite. On one hand, the position of the catheter can be limited in the up-down and left-right directions, so that the catheter fixing stability is guaranteed, and on the other hand, the use is convenient and comfortable through the arrangement.

Description

Technical Field

[0001] This utility model relates to a catheter fixation patch. Background Technology

[0002] During procedures such as dialysis and catheterization, various catheters are required, such as vascular catheters and urinary catheters. To avoid these catheters interfering with the patient's activities or to facilitate operation by medical staff, catheter fixation tapes are usually used to secure these catheters.

[0003] Common catheter fixation patches, such as those described in documents like JP5017615A, JP5282834A, and CN221950418U, typically include a substrate, an adhesive layer beneath the substrate, and a fixing part above the substrate. The fixing part includes an adhesive or support for fixing the catheter. After the catheter is fixed by the adhesive or support, a cover is used to cover it to stabilize the position of the catheter. However, in practice, it has been found that this structure is not sufficiently restrictive in the lateral direction of the catheter, which may lead to unexpected catheter dislodgement. Furthermore, the large coverage area of ​​the cover makes it less comfortable to use.

[0004] Therefore, a new technical solution is needed to address the aforementioned technical problems. Utility Model Content

[0005] Therefore, this utility model provides a catheter fixation patch to solve the above-mentioned technical problems.

[0006] A catheter fixation patch includes a body, said body comprising:

[0007] Matrix layer;

[0008] The bonding portion includes a first adhesive layer for attaching the body to the skin, said first adhesive layer being a gel layer;

[0009] The fixing part includes a substrate having a fixing surface, a left fixing piece having a first contact surface, a right fixing piece having a second contact surface, and a second adhesive layer located between the left and right fixing pieces for adhering the bottom surface of the catheter. The left fixing piece is configured such that at least a portion of it surrounds the catheter and the first contact surface forms a detachable connection with the fixing surface, and the right fixing piece is configured such that at least a portion of it surrounds the catheter and the second contact surface forms a detachable connection with the fixing surface. The left and right fixing pieces are oriented in opposite directions around the catheter.

[0010] The left fixing piece is stacked on the substrate and includes a fixing part that is fixedly connected to the substrate and a separating part that is separate from the substrate. The separating part is wrapped around the outer surface of the conduit and the first contact surface is folded and attached to the fixing surface to form a detachable connection.

[0011] The right fixing piece, which is fixed to the substrate, includes a pair of first connecting areas at one end, and a central hole is formed between the pair of first connecting areas. The left fixing piece passes through the central hole and connects with the substrate. The fixing part includes a second connecting area, which is located between the pair of first connecting areas.

[0012] The first adhesive layer includes a left adhesive portion, a right adhesive portion, and a notch portion located between the left adhesive portion and the right adhesive portion, and the notch portion is correspondingly provided with the second adhesive layer.

[0013] The notch includes a first edge line facing the left adhesive portion. If the distance between the first edge line and the second adhesive layer is D, then D = 3 to 20 mm.

[0014] The right fixing piece also includes a tear line extending from the edge to the central hole.

[0015] The tear line is straight and parallel to the length direction of the body.

[0016] The tear line includes a virtual extension line extending in the direction of the left fixing patch, and the extension line does not intersect with the left fixing piece.

[0017] A third protective plate is also provided on the first mating surface of the left fixing plate.

[0018] Wherein, the peel strength between the second adhesive layer and the stainless steel plate is defined as P2, and the peel strength between the first adhesive layer and the stainless steel plate is defined as P1, then P2:P1 = 1:5 to 1:2.

[0019] Beneficial Effects: This utility model provides a catheter fixation patch, including a body, the body comprising: a base layer; an adhesion part including a first adhesive layer for attaching the body to the skin, the first adhesive layer being a gel layer; and a fixation part including a base sheet having a fixation surface, a left fixation piece having a first adhesion surface, a right fixation piece having a second adhesion surface, and a second adhesive layer located between the left and right fixation pieces for adhering the bottom surface of the catheter. The left fixation piece is configured such that at least a portion of it surrounds the catheter, forming a detachable connection between the first adhesion surface and the fixation surface. The right fixation piece is also configured such that at least a portion of it surrounds the catheter, forming a detachable connection between the second adhesion surface and the fixation surface. Furthermore, the left and right fixation pieces are positioned opposite each other, which on the one hand limits the position of the catheter from the top, bottom, left, and right directions, thereby ensuring the stability of the catheter fixation; on the other hand, the above configuration makes it convenient and comfortable to use. Attached Figure Description

[0020] Figure 1 A schematic diagram of the catheter fixation patch of the first embodiment of this utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of cross-section at point AA where the central catheter is fixed;

[0022] Figure 3 for Figure 1 Schematic diagram of cross-section at the BB point where the central catheter is fixed;

[0023] Figure 4 A cross-sectional view at point AA when the catheter is fixed in place;

[0024] Figure 5 This is a cross-sectional view of section AA when the catheter is fixed in place according to the second embodiment.

[0025] Figure 6 This is a schematic diagram of the catheter fixation patch in the third embodiment;

[0026] Figure 7 This is a cross-sectional view of the catheter fixation patch AA in the fourth embodiment;

[0027] Component descriptions in the diagram:

[0028] Substrate layer 10; First adhesive layer 21; First protective layer 22; Fixing part 30; Substrate 31; Fixing surface 311; Left fixing pieces 32, 62, 72; First bonding surface 321; Right fixing pieces 33, 63; Second bonding surface 331; Central hole 332, 632; Second adhesive layer 34, 54; Second protective layer 341; Conduit 40; Left adhesive part 521; Right adhesive part 522; Notch 523; First edge line 5231; Second edge line 5232; Tear line 633; ​​Extension line 6331; Third protective piece 73. Detailed Implementation

[0029] This utility model provides a catheter fixing patch for fixing catheters such as vascular catheters and urinary catheters to the skin surface, thereby limiting the position of the catheter.

[0030] Please refer to Figures 1-4 The catheter fixing patch includes a body, which is generally sheet-shaped and includes a length direction and a width direction. The catheter 40 will be fixed along the width direction of the body. That is, when the catheter 40 is fixed on the body, the extension direction of the catheter 40 is parallel to the width direction of the body, so that the catheter 40 has a shorter passage area and the lateral position of the catheter 40 can be conveniently defined from the left and right directions. The body includes a base layer 10, an adhesive part and a fixing part 30.

[0031] The substrate layer 10 is used to provide support for the bonding part and the fixing part 30. The substrate layer 10 can be a network structure sheet made of fibers or a thin film sheet made of thermoplastic material.

[0032] Specifically, the network-structured sheet can be non-woven fabric or woven fabric, and the fiber can be fiber formed from thermoplastic material. Specifically, the thermoplastic material includes polyester or polyolefin, and the polyester can be polyethylene terephthalate and polybutylene terephthalate; polyurethane, etc. The polyolefin can be polyethylene, polypropylene, etc. In addition, the thermoplastic material can also be ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), ethylene-methyl acrylate copolymer (EMA), ethylene-methyl methacrylate copolymer (EMMA), ethylene-olefin copolymers such as methacrylic acid polymer (EMAA) and ethylene-acrylic acid copolymer (EAA); polyamides such as nylon 6 and nylon 66; polystyrene, etc. It is understood that the above materials can be used alone or in combination of two or more.

[0033] In addition, the thermoplastic material is preferably a breathable and elastic polyester elastomer or a polyurethane elastomer, with polyester elastomers being particularly preferred.

[0034] The film-like sheet can be a film formed by extrusion or stretching of a thermoplastic material. The thermoplastic material can be the same as the thermoplastic material that forms the fiber. Similarly, the thermoplastic material that forms the film is preferably a breathable and elastic polyester elastomer or polyurethane elastomer, with polyester elastomers being particularly preferred.

[0035] Understandably, in order to ensure that the substrate layer 10 has sufficient strength and user comfort, the substrate layer 10 has a strength of 15-180 g / m³. 2 It has a base weight, a thickness of 35–1200 μm, and a strength greater than 200 gf / 3''.

[0036] The bonding portion includes a first adhesive layer 21 disposed on the lower side of the substrate layer 10, which is used to adhere the body to the user's skin. At the same time, the first adhesive layer 21 should be configured to be peelable so that the user can easily remove the body from the skin.

[0037] Understandably, the first adhesive layer 21 is a gel layer, which includes a gel adhesive. The gel adhesive can be a hydrogel or a silicone gel, and of course, other gels, such as acrylic gels, are also feasible.

[0038] Furthermore, the peel strength between the first adhesive layer 21 and the stainless steel plate is defined as P1. P1 should be greater than or equal to 1N and less than or equal to 5N. It can be understood that the stainless steel plate refers to the stainless steel plate that meets the test requirements in Appendix B B.3 of YYT0148-2006, and the peel strength is tested by the method in Appendix B B.3 of YYT0148-2006.

[0039] The bonding portion further includes a first protective layer 22 covering the first adhesive layer 21. The first protective layer 22 includes a bonding surface attached to the first adhesive layer 21. The bonding surface includes a silicone oil layer, which makes the bonding surface have low surface tension, so that it can be easily peeled off from the first adhesive layer 21. This protects the first adhesive layer 21 when not in use and allows it to be easily peeled off when needed. In one specific embodiment, the first protective layer 22 is release paper.

[0040] The fixing part 30 includes a base plate 31 with a fixing surface 311, a left fixing piece 32 with a first contact surface 321, a right fixing piece 33 with a second contact surface 331, and a second adhesive layer 34 located between the left fixing piece 32 and the right fixing piece 33 for adhering to the bottom surface of the conduit 40. The left fixing piece 32 is configured such that at least a portion of it surrounds the conduit 40, forming a detachable connection between the first contact surface 321 and the fixing surface 311. Similarly, the right fixing piece 33 is configured such that at least a portion of it surrounds the conduit 40, forming a detachable connection between the second contact surface 331 and the fixing surface 311. Furthermore, the left fixing piece 32 and the right fixing piece 33 are positioned opposite each other, meaning the left fixing piece 32 is attached to the fixing surface 31 after being arranged from left to right. The first bonding surface 321 and the second bonding surface 331 form a detachable connection with the fixing surface 311, thereby limiting the left and upper positions of the conduit 40. The right fixing piece 33 is attached to the fixing surface 311 after being wrapped from right to left, limiting the right and upper positions of the conduit 40. Combined with the second adhesive layer 34 limiting the bottom position of the conduit 40, the fixing part 30 can limit the entire circumferential position of the conduit 40, thereby keeping the conduit 40 stably fixed. Since the first bonding surface 321 and the fixing surface 311 form a detachable connection, the left fixing piece 32 and the right fixing piece 33 can be easily separated from the fixing surface 311, thereby releasing the limitation on the position of the conduit 40. In addition, the fixing part 30 with this structure can also be easily used.

[0041] In this embodiment, the fixing surface 311 includes several micro-ring structures, and the first bonding surface 321 and the second bonding surface 331 both include several micro-hook structures. The micro-hook structures can hook onto the micro-ring structures to form a detachable connection. In a specific embodiment, the substrate 31 is a Velcro closure, the fixing surface 311 is the roughened surface of the Velcro closure, the left fixing piece 32 and the right fixing piece 33 are both Velcro fasteners, and the first bonding surface 321 and the second bonding surface 331 are the adhesive surfaces of the Velcro fasteners.

[0042] The left fixing piece 32 is stacked on the base plate 31 and includes a fixing part that is fixedly connected to the base plate 31 and a separating part that is separately disposed from the base plate 31. The separating part is wrapped around the outer surface of the conduit 40 and the first contact surface 321 is folded and attached to the fixing surface 311 to form a detachable connection. The right fixing piece 33 is disposed on the base plate 31 in the same manner. At the same time, the fixed end of the right fixing piece 33 is disposed opposite to the fixing part of the left fixing piece 32. Specifically, in this embodiment, the right end of the left fixing piece 32 is fixed on the base plate 31, while the left end of the right fixing piece 33 is fixed on the base plate 31.

[0043] Furthermore, the detachable connection refers to the fact that after the first mating surface 321, the second mating surface 331, and the fixing surface 311 are combined, they can be separated under the action of external force. At the same time, they can remain a stable fixed connection when no external force is applied. It is understood that the detachable connection should have a bonding force of greater than or equal to 1N and a bonding force of less than or equal to 20N, so that the first mating surface 321, the second mating surface 331, and the fixing surface 311 remain stably combined and the user can easily separate them.

[0044] Furthermore, the right fixing piece 33, which is fixed to the substrate 31, includes a pair of first connecting areas at one end, and a central hole 332 is formed between the pair of first connecting areas. The left fixing piece 32 passes through the central hole 332 and then connects with the substrate 31.

[0045] Furthermore, the fixing part includes a second connecting area located between a pair of first connecting areas. In this case, when the left fixing piece 32 and the right fixing piece 33 are fixed on the base plate 31, a support surface can be formed to support the second adhesive layer 34, and the upper surface of the second adhesive layer 34 is planar or nearly planar, thereby facilitating the adhesion of the conduit 40.

[0046] Furthermore, the pair of first connecting areas are symmetrically arranged along the center line of the right fixing piece 33.

[0047] Understandably, the second adhesive layer 34 is arranged in a long strip shape and extends along the width direction of the body.

[0048] Furthermore, the second adhesive layer 34 extends through the width direction of the substrate 31.

[0049] Furthermore, a second protective layer 341 is also provided on the second adhesive layer 34 to form a protective layer for the second adhesive layer 34. It is understood that the second protective layer 341 can also be release paper.

[0050] Furthermore, if the peel strength between the second adhesive layer 34 and the stainless steel plate is defined as P2, then P2 should be less than or equal to 3N. More preferably, P2:P1 = 1:5 to 1:2, so that the body will not peel off from the user's skin when the catheter 40 is removed from the second adhesive layer 34.

[0051] Please refer to Figure 5 ,exist Figure 5 The image shows a cross-sectional view of the catheter fixation patch at point AA after the catheter is fixed, according to the second embodiment. In the second embodiment, the first adhesive layer includes a left adhesive portion 521, a right adhesive portion 522, and a notch portion 523 located between the left adhesive portion 521 and the right adhesive portion 522. The position of the notch portion 523 corresponds to the position of the second adhesive layer 54. By providing the notch portion 523, when the body is adhered to the skin, the area corresponding to the notch portion 523 does not adhere to the skin. When the second adhesive layer 54 adheres to the catheter, the area corresponding to the notch portion 523 can deform, so that the second adhesive layer 54 has more area in contact with the catheter, thereby maintaining the stability of the catheter.

[0052] Furthermore, the notch 523 includes a first edge line 5231 facing the left adhesive portion 521 and a second edge line 5232 facing the right adhesive portion 522. If the distance between the first edge line 5231 and the second adhesive layer 54 is D, then D = 3 to 20 mm.

[0053] Please refer to Figure 6 , Figure 6 A schematic diagram of the catheter fixation patch according to the third embodiment is shown. In the third embodiment, the right fixation piece 63 also includes a tear line 633 extending from its edge to the central hole 632. Specifically, the tear line 633 can be a linear area formed by alternating through-hole areas and connecting areas. By applying external force, the right fixation piece 63 can be separated into two parts along the tear line 633. With the above setting, on the one hand, when it is necessary to remove the catheter urgently or quickly, the left fixation piece 62 can be quickly removed from the through hole by tearing the right fixation piece 63 to form two separate parts. On the other hand, when it is necessary to fine-tune the position, the right fixation piece 63 can be torn into two parts so that the two parts can be adjusted in position quickly and independently.

[0054] Furthermore, the tear line 633 is straight and parallel to the length direction of the body.

[0055] Furthermore, the tear line 633 includes a virtual extension line 6331 extending in the direction of the left fixing patch, and the extension line 6331 does not intersect with the left fixing piece 62.

[0056] Please refer to Figure 7 , Figure 7 A schematic diagram of the catheter fixation patch according to the fourth embodiment is shown. In the fourth embodiment, a third protective patch 73 is also provided on the first contact surface of the left fixation patch 72 to prevent the first contact surface from unexpectedly contacting the fixation surface and forming a connection when passing through the central hole, which would cause inconvenience in use.

[0057] Furthermore, the third protective sheet 73 is adsorbed onto the first bonding surface by electrostatic action for ease of use.

[0058] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A catheter fixation patch, comprising a body, characterized in that, The said body includes: Matrix layer; The bonding portion includes a first adhesive layer for attaching the body to the skin, said first adhesive layer being a gel layer; The fixing part includes a substrate having a fixing surface, a left fixing piece having a first contact surface, a right fixing piece having a second contact surface, and a second adhesive layer located between the left and right fixing pieces for adhering the bottom surface of the catheter. The left fixing piece is configured such that at least a portion of it surrounds the catheter and the first contact surface forms a detachable connection with the fixing surface, and the right fixing piece is configured such that at least a portion of it surrounds the catheter and the second contact surface forms a detachable connection with the fixing surface. The left and right fixing pieces are oriented in opposite directions around the catheter.

2. The catheter fixation patch as described in claim 1, characterized in that, The left fixing piece is stacked on the substrate and includes a fixing part that is fixedly connected to the substrate and a separating part that is separate from the substrate. The separating part is wrapped around the outer surface of the conduit and the first contact surface is folded and attached to the fixing surface to form a detachable connection.

3. The catheter fixation patch as described in claim 2, characterized in that, The right fixing piece is fixed to one end of the substrate and includes a pair of first connecting areas. A central hole is formed between the pair of first connecting areas. The left fixing piece passes through the central hole and is connected to the substrate. The fixing part includes a second connecting area, which is located between the pair of first connecting areas.

4. The catheter fixation patch as described in claim 3, characterized in that, The first adhesive layer includes a left adhesive portion, a right adhesive portion, and a notch portion located between the left adhesive portion and the right adhesive portion, and the notch portion is correspondingly provided with the second adhesive layer.

5. The catheter fixation patch as described in claim 4, characterized in that, The notch includes a first edge line facing the left adhesive portion. If the distance between the first edge line and the second adhesive layer is D, then D = 3 to 20 mm.

6. The catheter fixation patch as described in claim 3, characterized in that, The right fixing piece also includes a tear line extending from the edge to the central hole.

7. The catheter fixation patch as described in claim 6, characterized in that, The tear line is straight and parallel to the length direction of the body.

8. The catheter fixation patch as described in claim 6, characterized in that, The tear line includes a virtual extension line extending in the direction of the left fixation patch, and the extension line does not intersect with the left fixation patch.

9. The catheter fixation patch as described in claim 3, characterized in that, A third protective plate is also provided on the first mating surface of the left fixing plate.

10. The catheter fixation patch as described in claim 3, characterized in that, Let P2 be the peel strength between the second adhesive layer and the stainless steel plate, and P1 be the peel strength between the first adhesive layer and the stainless steel plate. Then P2:P1 = 1:5 to 1:2.

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