Integrated hemodialysis catheter external fixing application

Abstract

The utility model discloses an integrated hemodialysis catheter external fixation application, which comprises a material sheet and a dressing layer, the material sheet comprises a fixing part and a position avoiding part which are connected with each other, a position avoiding groove is concavely formed in the side edge of the fixing part, one end of the position avoiding part is connected to the position avoiding groove, and the other end of the position avoiding part is a first free end; the dressing layer is arranged at the bottom of the fixing part, and the hemodialysis catheter extends into the bottom of the dressing layer through the receding groove. The integrated external fixing application for the hemodialysis catheter has the effects of reducing glue layer residues on the hemodialysis catheter and reducing the infection risk of a patient.

Description

Technical Field

[0001] The utility model relates to the field of medical dressings, in particular to an integrated hemodialysis catheter external fixation dressing. Background Art

[0002] During hemodialysis treatment, after medical staff insert the hemodialysis catheter, they will place a patch on the location where the catheter is connected to the patient to fix the end of the catheter to the patient, reduce the movement of the catheter, and facilitate hemodialysis treatment.

[0003] When using existing dressings for fixation, the dressing is directly attached to the catheter to fix the catheter. When a new dressing needs to be replaced, the adhesive layer on the original dressing will stick to the catheter. This part of the adhesive layer is difficult to remove and can easily cause infection in the patient. Therefore, there is an urgent need for a dressing that can reduce the adhesion of the adhesive layer on the catheter. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated hemodialysis catheter external fixation dressing to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The solution of the utility model to solve its technical problems is:

[0006] Integrated hemodialysis catheter external fixation dressing, including:

[0007] The material piece includes a fixed portion and an avoidance portion connected to each other, wherein the bottom of the fixed portion is provided with a glue layer, the side of the fixed portion is concave with an avoidance groove, one end of the avoidance portion is connected to the avoidance groove, and the other end is a first free end;

[0008] A dressing layer is arranged at the bottom of the fixing portion, and the hemodialysis catheter extends into the bottom of the dressing layer through the avoidance groove.

[0009] This technical solution has at least the following beneficial effects: after inserting the hemodialysis catheter into the patient's body, the medical staff first pulls open the avoidance part of the dressing to expose the avoidance groove of the material piece, then aligns the end of the hemodialysis catheter with the dressing layer on the dressing and aligns the tube body of the hemodialysis catheter with the avoidance groove on the fixing part, and then fits the entire material piece to the patient's skin, thereby fixing the hemodialysis catheter on the patient's skin. This design reduces the connection between the hemodialysis catheter and the fixing part provided with the adhesive layer by providing an avoidance groove for the hemodialysis catheter to pass through, thereby reducing the contact between the adhesive layer and the tube body of the hemodialysis catheter, which is beneficial to reduce the contamination of the newly replaced dressing by pollutants remaining in the original adhesive layer, reducing the possibility of infection in the patient, and at the same time can reduce the workload of medical staff in cleaning the adhesive layer on the surface of the hemodialysis catheter when replacing the dressing material piece.

[0010] As a further improvement of the above technical solution, the adhesive layer is provided at the bottom of the avoidance part. When the patch is not in use, the avoidance part can be adhered to the protective film of the patch through the adhesive layer, thereby reducing the contact between the avoidance part and the external environment, and further reducing the possibility of contamination of the avoidance part.

[0011] As a further improvement of the above technical solution, a double-sided tape is provided on the top of the first free end, and a release paper is provided on the side of the double-sided tape away from the first free end. After the entire sheet is torn off from the protective film, the release paper is torn off, and the double-sided tape on the first free end is adhered to the surface of the fixed part, thereby fixing the first free end on the fixed part, reducing the movement of the first free end on the fixed part, and further reducing the contact between the avoidance part and the hemodialysis catheter body in subsequent use, reducing the residual glue layer on the hemodialysis catheter.

[0012] As a further improvement of the above technical solution, a guide groove for the hemodialysis catheter to pass through is provided at the bottom of the dressing layer. The hemodialysis catheter is placed in the guide groove to guide the hemodialysis catheter to accurately enter the dressing layer, thereby reducing the possibility of the hemodialysis catheter contacting the glue layer at other positions of the fixing part after deviation.

[0013] As a further improvement of the above technical solution, the edge of the dressing layer is located at the connecting groove, and the dressing layer is placed close to the connecting groove, thereby further reducing the possibility of the hemodialysis catheter sticking to the glue layer in the gap between the dressing layer and the end of the fixed part.

[0014] As a further improvement to the above technical solution, a pair of strip bags are arranged in the dressing layer at intervals, the hemodialysis catheter is located between the two strip bags, and the fixing portion is provided with an inflatable member for inflating the two strip bags. After the two strip bags are inflated, they drive the dressing layer to clamp the hemodialysis catheter.

[0015] Due to the lack of the adhesive layer to fix the hemodialysis catheter, relying solely on the dressing layer to compress the hemodialysis catheter may result in insufficient fixation of the hemodialysis catheter, which may cause the hemodialysis catheter to move at the bottom of the dressing layer, affecting hemodialysis treatment. When the hemodialysis catheter is placed between the two strips, the inflatable piece is activated to inflate the hemodialysis catheter, and the hemodialysis catheter expands in the dressing layer, thereby lifting the dressing layer and clamping the hemodialysis catheter, reducing the movement of the hemodialysis catheter between the dressing layer and the patient's skin, and improving the stability of the hemodialysis catheter at this location.

[0016] As a further improvement of the above technical solution, the two strip bags are connected to each other through a ventilation tube, and the inflatable part includes an inflation tube, one end of the inflation tube is connected to the strip bag, and the other end passes through the fixed part, and the end of the inflation tube passing through the fixed part is used to be connected to the syringe. When inflating, it is only necessary to insert the syringe without a needle installed into the inflation tube, and the medical staff can inject air into the strip bags by controlling the piston of the syringe, so as to inflate the two strip bags synchronously. This design utilizes tools that are relatively easy for medical staff to obtain to inflate the strip bags, thereby realizing rapid inflation of the strip bags and rapid clamping of the hemodialysis catheter.

[0017] As a further improvement of the above technical solution, the sheet is made of transparent material, and the dressing layer is provided with an observation window, through which medical staff can directly observe the status of the end of the hemodialysis catheter through the observation window and the transparent fixing portion.

[0018] As a further improvement of the above technical solution, the fixed portion corresponding to the observation window is a glue-free area. When the patch is used, the fixed portion corresponding to the observation window is easily pressurized. If a glue layer is provided here, the glue layer of the fixed portion is likely to come into contact with the hemodialysis catheter and remain on the hemodialysis catheter. Therefore, removing the glue layer of this part is helpful in reducing the risk of infection.

[0019] As a further improvement of the above technical solution, a self-adhesive tape is provided on the top of the fixing portion, and the end of the self-adhesive tape away from the fixing portion is a freely movable second free end, and a clamping cavity for clamping the hemodialysis catheter is formed between the second free end and the fixing portion. The self-adhesive tape can clamp the hemodialysis catheter above the fixing portion, reducing the movement of the hemodialysis catheter above the fixing portion, thereby reducing the movement of the end of the hemodialysis catheter in the dressing layer, improving the stability of the hemodialysis catheter placed on the sheet, and facilitating the maintenance of stable hemodialysis treatment for the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also derive other design solutions and drawings based on these drawings without inventive effort.

[0021] Figure 1 This is a top view of the application of the utility model;

[0022] Figure 2 This is a cross-sectional view of the dressing of the present invention taken along the AA perspective;

[0023] Figure 3 It is a cross-sectional view of the dressing of the present invention from a top view perspective;

[0024] Figure 4 This is a cross-sectional view of the dressing of the present invention taken along the BB perspective;

[0025] Figure 5 yes Figure 4 A magnified view of middle A;

[0026] Figure 6 yes Figure 4 Magnified view of B.

[0027] Reference numerals

[0028] 1. Fixing portion; 11. Avoidance groove; 2. Avoidance portion; 21. First free end; 22. Double-sided tape; 23. Release paper; 3. Dressing layer; 31. Strip capsule; 32. Observation window; 33. Inflatable tube; 4. Adhesive layer; 5. Self-adhesive tape. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Existing dressings are all complete rectangles. When using the dressing to fix the hemodialysis catheter, the dressing is directly applied to the patient's skin where the hemodialysis catheter is placed, thereby fixing the hemodialysis catheter to the patient's skin surface. However, in this way, the adhesive layer 4 on the dressing will adhere to the hemodialysis catheter. When the dressing is replaced, the adhesive layer 4 of the original dressing will remain on the hemodialysis catheter, which is easy to cause contamination, thereby causing infection to the patient, which is not conducive to the normal progress of hemodialysis treatment.

[0034] In order to solve one or more of the above problems, the present application provides an integrated hemodialysis catheter external fixation dressing.

[0035] Reference Figures 1-6 The integrated hemodialysis catheter external fixation dressing in this application includes:

[0036] The material sheet includes a fixing portion 1 and an avoidance portion 2 connected to each other. The cross-section of the fixing portion 1 is rectangular. In the present application, the length direction of the hemodialysis catheter installed on the material sheet is referred to as the first direction. One side edge of the fixing portion 1 in the first direction is recessed with an avoidance groove 11. One end of the avoidance portion 2 is connected to the avoidance groove 11 and is located on one side of the connecting groove perpendicular to the first direction. The other end is a first free end 21 extending perpendicular to the first direction and freely movable.

[0037] Dressing layer 3. In this embodiment, the dressing layer 3 is made of cotton, which is arranged at the bottom of the fixing part 1 and is completely covered by the fixing part 1. The hemodialysis catheter used in conjunction with the dressing extends into the bottom of the dressing layer 3 through the avoidance groove 11. In this embodiment, silver ion antibacterial agent is added to the dressing layer 3. Silver ions have broad-spectrum antibacterial properties and can inhibit the growth of bacteria around the dressing layer, especially during long-term hemodialysis, further reducing the risk of infection in patients.

[0038] When using the dressing, the avoidance portion 2 of the sheet is first pulled open to expose the avoidance groove 11 of the sheet. The medical staff then aligns the end of the hemodialysis catheter with the dressing layer 3 on the dressing and the tube body of the hemodialysis catheter with the avoidance groove 11 on the fixing portion 1. The sheet is then attached to the patient's skin as a whole, thereby fixing the hemodialysis catheter placed on the patient on the skin. This design reduces the connection between the hemodialysis catheter and the fixing portion 1 with the adhesive layer 4 by providing the avoidance groove 11 for the hemodialysis catheter to pass through, thereby reducing the contact between the adhesive layer 4 and the tube body of the hemodialysis catheter, thereby reducing the contamination of the newly replaced dressing by the contaminants remaining in the original adhesive layer 4, and reducing the possibility of the patient being infected by the old adhesive layer 4.

[0039] As a patch, the bottom of the fixing part 1 and the avoidance part 2 are both provided with an adhesive layer 4. When the patch is not in use, the fixing part 1 and the avoidance part 2 are both attached to the protective film. The protective film can protect the adhesive layer 4 at the fixing part 1, so that the fixing part 1 can be stably attached to the patient's skin. Secondly, the adhesive layer 4 is provided at the avoidance part 2, and the avoidance part 2 is stably adhered to the protective film of the sheet through the adhesive layer 4, reducing the free swing of the first free end 21 of the avoidance part 2, thereby reducing the contact between the adhesive layer 4 at the avoidance part 2 and the external environment, which is beneficial to reducing the possibility of the avoidance part 2 being contaminated by the outside world.

[0040] However, when the first free end 21 is fixed, if the avoidance portion 2 is fixed to the surface of the fixing portion 1 directly through the adhesive layer 4 on the avoidance portion 2, wrinkles are easily generated on the surface of the avoidance portion 2, causing the adhesive layer 4 to be exposed, thereby contacting the hemodialysis catheter at the avoidance groove 11, adhering the adhesive layer 4, and increasing the probability of contamination of the hemodialysis catheter.

[0041] Therefore, as a further preferred embodiment, a double-sided tape 22 is provided on the first free end 21, and a release paper 23 is provided on the side of the double-sided tape 22 away from the first free end 21. After the entire sheet is attached to the patient's skin, the release paper 23 is torn off first, and then the medical staff adheres the double-sided tape 22 on the first free end 21 to the fixed part 1 and flattens it, so that the first free end 21 is completely attached to the fixed part 1, reducing the gap between the first free end 21 and the fixed part 1, and then adheres the release paper 23 to the adhesive layer 4 of the first free end 21, thereby isolating the adhesive layer 4 from the external environment, reducing the possibility of the adhesive layer 4 on the first free end 21 being contaminated by the external environment during hemodialysis treatment.

[0042] The material of the sheet is transparent plastic. Specifically, the material of the sheet is medical-grade polyurethane, which has good biocompatibility and can reduce irritation to the patient's skin while maintaining sufficient flexibility and transparency for easy operation and observation.

[0043] The dressing layer 3 is provided with an observation window 32, and the portion of the fixing portion 1 corresponding to the observation window 32 is a glue-free area. Through the observation window 32 and the transparent fixing portion 1, medical staff can directly observe the status of the end of the hemodialysis catheter. At the same time, the portion of the fixing portion 1 corresponding to the observation window 32 is set as a glue-free area, which reduces the possibility of the hemodialysis catheter adhering to the glue layer 4 after contacting the fixing portion 1 through the observation window 32, thereby reducing the residue of the glue layer 4 on the hemodialysis catheter.

[0044] Further as a preferred embodiment, the edge of the dressing layer 3 along the first direction and close to the side edge of the avoidance portion 2 is located at the connecting groove, and the width of the dressing layer 3 along the direction perpendicular to the first direction is greater than the width of the connecting groove along the direction perpendicular to the first direction, thereby reducing the gap between the fixing portion 1 and the dressing layer 3 in the horizontal direction, reducing the adhesive layer 4 on the gap, and thus reducing the possibility of the hemodialysis catheter contacting the adhesive layer 4 in the gap at this location.

[0045] Due to the lack of the fixing effect of the adhesive layer 4 on the hemodialysis catheter, the compression of the hemodialysis catheter by the dressing layer 3 alone may result in insufficient fixation of the hemodialysis catheter, which may cause the hemodialysis catheter to move at the bottom of the dressing layer 3, affecting hemodialysis treatment. In order to solve the above problem, a guide groove extending along the first direction is provided at the bottom of the dressing layer 3, and strip capsules 31 are provided inside the dressing layer 3 above the guide groove and on both sides along the first direction. Each strip capsule 31 extends along the first direction, and the hemodialysis catheter is connected to the guide groove and is located between the two strip capsules 31. An inflatable part for inflating the two strip capsules 31 is provided on the fixing part 1. After the two strip capsules 31 are inflated, the dressing layer 3 is driven to push up in the direction close to the hemodialysis catheter, thereby clamping the hemodialysis catheter, reducing the movement of the hemodialysis catheter, and improving the stability of the hemodialysis catheter in the guide groove.

[0046] The two strip bags 31 are connected to each other through a ventilation tube. In this embodiment, the inflatable part includes an inflatable tube 33, one end of the inflatable tube 33 is connected to the strip bag 31, and the other end passes through the fixed part 1. The end of the inflatable tube 33 passing through the fixed part 1 is provided with a one-way valve for connecting to a syringe. When inflating, medical staff can take out a spare syringe, insert the spare syringe into the one-way valve of the inflatable tube 33, and inject air into the strip bag 31 by controlling the piston of the syringe, so that the two strip bags 31 can be inflated synchronously. This design utilizes tools that are relatively easy for medical staff to obtain to inflate the strip bags 31, thereby realizing rapid clamping of the hemodialysis catheter.

[0047] A self-adhesive tape 5 is provided on the top of the fixing part 1. The end of the self-adhesive tape 5 away from the fixing part 1 is a freely movable second free end. A clamping cavity for clamping the hemodialysis catheter is formed between the second free end and the fixing part 1. The self-adhesive tape 5 can clamp the hemodialysis catheter above the fixing part 1, reducing the movement of the hemodialysis catheter above the fixing part 1, thereby reducing the movement of the end of the hemodialysis catheter in the dressing layer 3, improving the stability of the hemodialysis catheter placed on the sheet, and helping to maintain the stability of the patient undergoing hemodialysis treatment.

[0048] As a further preferred embodiment, the inner surface of the self-adhesive tape 5 is provided with fine anti-slip grooves. When the self-adhesive tape 5 clamps the hemodialysis catheter above the fixing portion, these anti-slip grooves can increase the friction with the surface of the hemodialysis catheter, better prevent the hemodialysis catheter from sliding above the fixing portion 1, and improve the stability of the hemodialysis catheter fixation.

[0049] Further as a preferred embodiment, several pairs of self-adhesive tapes 5 are provided. In the present embodiment, the self-adhesive tapes 5 are provided as a pair, and the two self-adhesive tapes 5 of the same pair are arranged along the first direction. The two self-adhesive tapes 5 of the same pair are connected to one end of the fixing part 1 and are respectively located on both sides of the fixing part 1 along the first direction. The second free ends of the two self-adhesive tapes 5 of the same pair are staggered, and the clamping cavities of the two self-adhesive tapes 5 are arranged along the first direction. When the two self-adhesive tapes 5 are used to fix the tube body of the hemodialysis catheter, the fixed ends of the two self-adhesive tapes 5 limit the hemodialysis catheter on both sides of the first direction, so that the hemodialysis catheter is always located in the clamping cavity and is difficult to fall out, thereby enhancing the placement stability of the hemodialysis catheter on the fixing part 1.

[0050] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An integrated hemodialysis catheter external fixation dressing, characterized in that: include: A material sheet comprising a fixing portion (1) and an avoidance portion (2) connected to each other, wherein a glue layer (4) is provided at the bottom of the fixing portion (1), a avoidance groove (11) is recessed in the side of the fixing portion (1), one end of the avoidance portion (2) is connected to the avoidance groove (11), and the other end is a first free end (21); A dressing layer (3) is arranged at the bottom of the fixing portion (1), and the hemodialysis catheter extends into the bottom of the dressing layer (3) through the avoidance groove (11); A guide groove for the hemodialysis catheter to pass through is provided at the bottom of the dressing layer (3); The edge of the dressing layer (3) is located at the connecting groove; A pair of strip bags (31) are arranged at intervals in the dressing layer (3), and the hemodialysis catheter is located between the two strip bags (31). An inflatable member for inflating the two strip bags (31) is provided on the fixing portion (1). After the two strip bags (31) are inflated, they drive the dressing layer to clamp the hemodialysis catheter.

2. The integrated hemodialysis catheter external fixation dressing according to claim 1, characterized in that: The adhesive layer (4) is provided at the bottom of the avoidance portion (2).

3. The integrated hemodialysis catheter external fixation dressing according to claim 2, characterized in that: A double-sided adhesive tape (22) is provided on the top of the first free end (21), and a release paper (23) is provided on the side of the double-sided adhesive tape (22) away from the first free end (21).

4. The integrated hemodialysis catheter external fixation dressing according to claim 1, characterized in that: The two strip bags (31) are connected to each other through a ventilation tube. The inflatable member comprises an inflatable tube (33). One end of the inflatable tube (33) is connected to the strip bag (31) and the other end passes through the fixing part (1). The end of the inflatable tube (33) passing through the fixing part (1) is used to be connected to a syringe.

5. The integrated hemodialysis catheter external fixation dressing according to claim 1, characterized in that: The material sheet is made of a transparent material, and the dressing layer (3) is provided with an observation window (32).

6. The integrated hemodialysis catheter external fixation dressing according to claim 5, characterized in that: The fixing portion (1) corresponding to the observation window (32) is a glue-free area.

7. The integrated hemodialysis catheter external fixation dressing according to claim 1, characterized in that: A self-adhesive tape (5) is provided on the top of the fixing portion (1), and the end of the self-adhesive tape (5) away from the fixing portion (1) is a second free end, and a clamping cavity for clamping the hemodialysis catheter is formed between the second free end and the fixing portion (1).

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