Indwelling catheter fixing device for hemodialysis patient

By designing a non-woven fabric containment bag and a fixing device for the electrode pads, the problems of catheter slippage and infection risk in hemodialysis patients were solved, achieving a firm and comfortable fixation effect.

CN223529828UActive Publication Date: 2025-11-11三明市第一医院
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Patent Information

Application Number
CN202423165913.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-11-11
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

The current catheter fixation method for hemodialysis patients is not secure enough, making it prone to slippage and potentially leading to infection and discomfort.

Method used

A fixation device comprising a receiving bag and a limiting fixation element has been designed. The receiving bag is made of non-woven fabric and equipped with straps and electrode pads. The straps are connected by buttons, and the electrode pads are adhered to the patient's skin for fixing hemodialysis catheters or long-term catheters.

Benefits of technology

It improves the fixation strength, reduces the risk of slippage and infection, increases comfort and aesthetics, and avoids the problem of difficult-to-remove adhesive tape residue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The indwelling catheter fixing device for the hemodialysis patient comprises a containing bag used for containing an indwelling catheter and a limiting fixing piece used for fixing the containing bag to the body of the patient. The containing bag comprises a front bag piece, a back bag piece and a containing cavity located between the front bag piece and the back bag piece and used for containing the containing pipe, one side edge and the bottom edge of the front bag piece and the back bag piece are fixed to form a first sealing edge and a bottom sealing edge respectively, and the top edge of the front bag piece and the top edge of the back bag piece form a top opening. The lower half sections of the other side edges of the front bag piece and the back bag piece are fixed to form a semi-sealing edge; the upper half sections of the other side edges of the front bag piece and the back bag piece form side edge openings capable of being opened. The indwelling catheter fixing device is ideal and ingenious in structural design, the fixing mode is firm, the risk that an indwelling catheter (such as a hemodialysis catheter or a long-term catheter) slips is not prone to occurring, a user does not need to worry that adhesive tape traces adhere to the skin and are difficult to remove, anxiety of a patient is reduced, and the risks of infection and slipping can be reduced to the minimum.
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Description

Technical Field

[0001] This utility model relates to a medical catheter fixation device, specifically a catheter fixation device for hemodialysis patients. Background Technology

[0002] A hemodialysis unit, also known as a hemodialysis room, is a facility that uses hemodialysis to provide renal replacement therapy for patients with chronic or acute renal failure due to related diseases. In the hemodialysis unit, nursing staff frequently encounter hemodialysis patients, such as those with temporary femoral vein hemodialysis catheters. These patients typically need to have the catheter placed on their body (usually in the leg), and this catheter is usually left in place for one to two months, or even six months. Living and traveling with the catheter is extremely inconvenient for patients. Currently, there are generally two methods for securing hemodialysis catheters. One method involves wrapping the catheter in white sterile gauze and securing it to the patient's leg with adhesive tape. This method is not ideal because the patient's leg needs to move frequently, and excessive traction can easily cause the catheter to slip out. Frequent movement and sweating can also cause the adhesive tape to lose its stickiness. If the tape loses its stickiness after returning home (which happens frequently), the patient needs to change the dressing, increasing the risk of infection and slippage. The other method is to directly secure the catheter to the patient's leg with adhesive tape. This method of fixation is not ideal either. Simply using adhesive tape is not secure and is uncomfortable; some patients experience adhesive tape allergies, and adhesive residue is difficult to remove from the skin.

[0003] For example, patients undergoing long-term hemodialysis with catheters need to have these catheters placed on their bodies (usually in the chest). These catheters are typically left in place for three to five years, or even longer. These catheters are usually wrapped in white sterile gauze and secured to the patient's chest with adhesive tape. This method of fixation is not ideal; the combination of sterile gauze and adhesive tape is not aesthetically pleasing, comfortable, or secure. Especially in summer, increased sweating can easily cause the adhesive tape to lose its stickiness. If the tape loses its stickiness at home (which happens frequently), and the gauze is not waterproof, the patient needs to replace the gauze, increasing the risk of infection and slippage. Adhesive residue remains on the skin and is difficult to remove; some patients also experience adhesive tape allergies. Utility Model Content

[0004] This utility model provides a catheter fixation device for hemodialysis patients, which aims to overcome the shortcomings of existing catheter fixation methods, such as being less than ideal, not being secure enough, being prone to slippage, and causing discomfort to patients.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A catheter fixation device for hemodialysis patients includes a receiving bag for holding the catheter and a limiting fixation member for fixing the receiving bag to the patient's body; the receiving bag includes a front bag piece and a back bag piece, and a receiving cavity located between the front bag piece and the back bag piece for holding the catheter; one side and the bottom side of the front bag piece and the back bag piece are respectively fixed to form a first sealing edge and a bottom sealing edge; the top edge of the front bag piece and the back bag piece forms a top opening; the lower half of the other side of the front bag piece and the back bag piece is fixed to form a semi-sealed edge; the upper half of the other side of the front bag piece and the back bag piece forms an openable side opening; an enlarged opening is formed between the side opening and the top opening.

[0007] Furthermore, the container bag is a rectangular cloth bag made of non-woven fabric.

[0008] Furthermore, the limiting and fixing component is a strap, which has multiple button holes arranged at intervals along its length, and a first button at its end. The side of the container bag has a second button, and the other side has a first button hole that engages with the first button.

[0009] Furthermore, the number of straps is two, and the two straps are arranged vertically at intervals.

[0010] Furthermore, the limiting and fixing component is an electrode sheet, and the back of the back pocket sheet is provided with a female snap fastener; the back of the electrode sheet is provided with a male snap fastener that engages with the female snap fastener, and the receiving bag is attached to the patient's body through the front of the electrode sheet.

[0011] Furthermore, a button is provided between the upper half of the other side of the front pocket panel and the back pocket panel, and the side opening can be opened by the button.

[0012] Furthermore, there are two electrode plates, and the electrode plates are arranged vertically at intervals on the back side of the back pocket.

[0013] Furthermore, the catheter is a hemodialysis catheter or a long-term catheter.

[0014] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows: The structure of this catheter fixation device is ideal and ingeniously designed, and the fixation method is relatively firm, reducing the risk of catheter (such as hemodialysis catheters or long-term catheters) slipping out. There is no need to worry about adhesive tape residue sticking to the skin and being difficult to remove, which not only reduces patient anxiety but also minimizes the risks of infection and slippage. This catheter fixation device comes in various styles to suit different hemodialysis patients, such as those with femoral vein temporary hemodialysis catheters or those with long-term catheters, making it highly practical and easy for hospitals to promote its use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main view direction in this embodiment.

[0016] Figure 2 This is a schematic diagram of the main view in this embodiment, where the straps are in a separated state.

[0017] Figure 3 This is a schematic diagram of the rear view direction in this embodiment.

[0018] Figure 4 This is a schematic diagram of the container bag in this embodiment, in which the front bag section is shown in cross-section.

[0019] Figure 5 This is a schematic diagram of the side view of the containment bag in this embodiment.

[0020] Figure 6 This is a schematic diagram of the main view of this embodiment, in which the back of the back bag has an electrode sheet.

[0021] Figure 7 This is a schematic diagram of the back of the containment bag in this second embodiment, where the electrode plates are in a separated state.

[0022] Figure 8 This is a schematic diagram of the front of the container bag in this embodiment two.

[0023] Figure 9 This is a schematic diagram of the back of the container bag in this embodiment two.

[0024] Figure 10 This is a schematic diagram of the container bag in Embodiment 2, in which the front bag section is shown in cross-section.

[0025] Figure 11 This is a schematic diagram of the main view direction in Embodiment 3. Detailed Implementation

[0026] The following is a reference to the appendix. Figures 1 to 11 The specific embodiments of this utility model are described below. Example 1

[0027] See attached document Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5For patients with a temporary femoral vein hemodialysis catheter, a catheter fixation device for hemodialysis patients includes a receiving bag 1 for holding the catheter and a limiting fixation member for fixing the receiving bag 1 to the patient's body; the receiving bag 1 includes a front bag panel 11 and a back bag panel 12 and a receiving cavity located between the front bag panel 11 and the back bag panel 12 for holding the catheter, one side and the bottom side of the front bag panel 11 and the back bag panel 12 are fixed (e.g., by sewing or adhesive sewing) to form a first sealing edge 13 and a bottom sealing edge 14, the top edge of the front bag panel 11 and the back bag panel 12 forms a top opening 10, the lower half of the other side of the front bag panel 11 and the back bag panel 12 is fixed (e.g., by sewing or adhesive sewing) to form a semi-sealed edge 15; the upper half of the other side of the front bag panel 11 and the back bag panel 12 forms an openable side opening 16. An enlarged opening is formed between the side opening 16 and the top opening 10. This enlarged opening design facilitates the insertion of the hemodialysis catheter into the receiving cavity through the enlarged opening. The receiving bag 1 is a rectangular cloth bag made of non-woven fabric.

[0028] See attached document Figure 1 , Figure 2 and Figure 4 The limiting and fixing component is a strap 2 (such as an elastic cloth strip). This strap 2 has multiple buttonholes 21 spaced apart along its length, and a first button 22 at its end. The receiving bag 1 has a second button 4 on one side and a first fastening hole 17 on the other side to engage with the first button 22. There are two straps (such as elastic cloth strips), arranged vertically at intervals. After the patient wears this insertion and fixation device (i.e., the receiving bag 1 is fixed to the patient's leg by the strap 2), the patient's leg can move freely, comfortably, and aesthetically. After returning home, the patient does not need to worry about the adhesive tape losing its stickiness and needing to change the dressing themselves, thus reducing the risk of infection and slippage. This insertion and fixation device has a relatively secure fixation method, is comfortable and non-allergenic, highly breathable, and the elastic cloth strip can be adjusted according to the patient's leg thickness, allowing for easy fastening between a corresponding buttonhole 21 and a second button 4 on the strap 2, making it convenient for both patients and medical staff. This not only reduces patient anxiety but also minimizes the risk of infection and slippage.

[0029] Additionally, refer to the appendix Figure 6 The back of the back pocket 12 is provided with an electrode plate A. The design of the electrode plate A further improves the fixation strength of this tube placement and fixation device. The electrode plate A adheres more firmly to the patient's leg skin. Example 2

[0030] See attached document Figure 7 , Figure 8 , Figure 9 and Figure 10 This embodiment is basically the same as Embodiment 1, except that: for patients undergoing long-term catheter hemodialysis, the limiting and fixing component is the electrode pad 2. The back of the back pocket 12 has a female snap fastener 120 located in the center; the back of the electrode pad 2 has a male snap fastener 20 that engages with the female snap fastener 120. The receiving bag 1 is attached to the patient's body through the front of the electrode pad 2. A button 3 (such as a snap fastener) is provided between the upper half of the other side of the front pocket 11 and the back pocket 12, and the side opening 16 can be opened through the button 3 (such as a snap fastener). In use, the long-term catheter in front of the patient's chest is placed in the receiving bag 1, the film 21 on the front of the electrode pad 2 is lifted off, and then the electrode pad is attached to the skin in front of the patient's chest for secure fixation. Using the electrode pad 2 attached to the skin eliminates concerns about adhesive residue that is difficult to remove, reducing patient anxiety and minimizing the risk of infection and slippage. The electrode pad 2 adheres firmly and comfortably to the skin without causing allergies, making it convenient for patients and medical staff to use. Example 3

[0031] See attached document Figure 11 The implementation methods of this embodiment and Embodiment 2 are basically the same, except that: there are two electrode sheets 2, and the electrode sheets 2 are arranged vertically at intervals on the back of the back bag sheet 12.

[0032] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A catheter fixation device for hemodialysis patients, characterized in that: The device includes a receiving bag for holding a tube and a limiting fastener for securing the receiving bag to a patient's body. The receiving bag includes a front bag panel and a back bag panel, and a receiving cavity located between the front bag panel and the back bag panel for holding the tube. One side and the bottom side of the front bag panel and the back bag panel are respectively fixed to form a first sealing edge and a bottom sealing edge. The top edge of the front bag panel and the back bag panel forms a top opening. The lower half of the other side of the front bag panel and the back bag panel is fixed to form a semi-sealed edge. The upper half of the other side of the front bag panel and the back bag panel forms an openable side opening. An enlarged opening is formed between the side opening and the top opening.

2. The catheter fixation device for hemodialysis patients according to claim 1, characterized in that: The container bag is a rectangular cloth bag made of non-woven fabric.

3. The catheter fixation device for hemodialysis patients according to claim 1 or 2, characterized in that: The limiting and fixing component is a strap, which has multiple button holes arranged at intervals along its length and a first button at its end. The side of the container bag has a second button, and the other side has a first button hole that engages with the first button.

4. The catheter fixation device for hemodialysis patients according to claim 3, characterized in that: The number of straps is two, and the two straps are arranged vertically and alternately.

5. The catheter fixation device for hemodialysis patients according to claim 1 or 2, characterized in that: The limiting and fixing component is an electrode sheet, and the back of the back pocket sheet is provided with a female snap fastener; the back of the electrode sheet is provided with a male snap fastener that engages with the female snap fastener, and the receiving bag is attached to the patient's body through the front of the electrode sheet.

6. The catheter fixation device for hemodialysis patients according to claim 5, characterized in that: A button is provided between the upper half of the other side of the front pocket and the back pocket, and the side opening can be opened by the button.

7. The catheter fixation device for hemodialysis patients according to claim 5, characterized in that: The number of electrode plates is two, and the electrode plates are arranged vertically at intervals on the back of the back bag.

8. The catheter fixation device for hemodialysis patients according to claim 1, characterized in that: The catheter is a hemodialysis catheter or a long-term catheter.