A hemodialysis care catheter securement device
By combining the inflation of the airbag with the clamping pad, along with the spring and translational slider design, the problem of cumbersome operation of existing hemodialysis nursing catheter fixation devices is solved, achieving stable fixation and flexible adaptation of the catheter, thus improving the effectiveness of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED HOSPITAL OF GUILIN MEDICAL UNIV
- Filing Date
- 2025-02-27
- Publication Date
- 2026-08-04
AI Technical Summary
Existing hemodialysis catheter fixation devices require manual operation, which is cumbersome, and the bolts can easily crush the catheter, affecting its effectiveness.
The system employs an airbag inflation mechanism combined with a clamping pad, along with a spring and translational slider design, to achieve stable fixation of the conduit. An angle adjustment rod and an electric screw are used to adapt to different wiring layouts.
It enables convenient and secure fixation of the catheter, improves the flexibility and applicability of use, reduces the risk of catheter slippage, and enhances the ease of operation and safety.
Smart Images

Figure CN224585167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a fixation device for a hemodialysis nursing catheter. Background Technology
[0002] Hemodialysis care requires catheter fixation. Fixing the catheter effectively prevents needle movement, ensuring stable blood flow during hemodialysis, which is crucial for achieving the desired therapeutic effect. Catheter fixation also reduces the occurrence of vascular access complications, such as phlebitis, thus protecting the patient's vascular health. After catheter fixation, the risks of damage and infection from frequent punctures are avoided, helping to extend the catheter's lifespan. It also prevents the growth of bacteria and other microorganisms at the needle puncture site, reducing the possibility of infection. Nursing staff strictly adhere to aseptic techniques during dialysis to further ensure patient safety; however, current catheter fixation devices require multiple manual tightening of the clips, which is relatively cumbersome.
[0003] A search revealed a Chinese patent publication number CN221618305U, which discloses a catheter fixing device for hemodialysis nursing, including a support plate. Two support blocks are fixedly connected to each of the four corners of the top of the support plate. A connecting block is fixedly connected to the top of each support block. A first threaded rod is threadedly connected to the inner wall of the top of each connecting block. A first arc-shaped fixing is rotatably connected to the bottom of each first threaded rod.
[0004] To address the problems of manually rotating bolts to fix the catheter in the above-mentioned technologies, which is cumbersome and the bolts can easily flatten the catheter, affecting its normal use, a hemodialysis nursing catheter fixing device is proposed. Utility Model Content
[0005] In view of this, the present invention aims to provide a hemodialysis nursing catheter fixation device to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.
[0006] The technical solution of this utility model embodiment is implemented as follows: it includes a clamping bracket, a plurality of clamping guard plates are fixedly connected to one side of the clamping bracket, two clamping pads are fixedly connected to the inner side of the clamping guard plates, an airbag is fixedly connected to one side of the plurality of clamping pads, one side of the airbag is fixedly connected to the clamping bracket, an air supply pipeline is fixedly connected to one end of the plurality of airbags, an air pump is fixedly connected to one side of the clamping bracket, and the air outlet end of the air pump is fixedly connected to the air supply pipeline.
[0007] In some embodiments, a partition is fixedly connected to the inner side of the clamping guard plate, springs are fixedly connected to both sides of the partition, and a clamping pad is fixedly connected to the other end of the spring.
[0008] In some embodiments, the clamping guard plate has translational grooves on both sides inside, and translational sliders are slidably connected inside the translational grooves. Multiple translational sliders are fixedly connected to both sides of the clamping pad.
[0009] In some embodiments, one end of the gas supply pipeline is fixedly connected to a pressure relief valve via a pipe, one side of the pressure relief valve is fixedly connected to the outside of the clamping bracket, and the other side of the clamping bracket is fixedly connected to a sealing plug via a rope, with one end of the sealing plug inserted into the gas supply pipeline.
[0010] In some embodiments, an angle adjustment rod is fixedly connected to one side of the clamping bracket, one end of multiple angle adjustment rods is rotatably connected to a second steering bracket, the other end of the second steering bracket is rotatably connected to a first steering bracket, and a lifting bracket is fixedly connected to one side of the first steering bracket.
[0011] In some embodiments, a screw nut is fixedly connected to the lower end of the lifting bracket, an electric screw is threadedly connected to one end of the screw nut, a stabilizing rod is slidably connected to the lower part of the lifting bracket, and a support frame is fixedly connected to the motor end of the electric screw and the lower end of the stabilizing rod.
[0012] In some embodiments, a protective sleeve is fixedly connected to one end of the support frame and the lifting bracket.
[0013] In some embodiments, the clamping bracket has multiple flow meter mounting slots on one side, a mounting rod is inserted into one end of the flow meter mounting slot, and a flow monitoring component is fixedly connected to the other end of the mounting rod.
[0014] The present invention has the following advantages due to the adoption of the above technical solution:
[0015] 1. A catheter fixation device for hemodialysis care, which achieves stable fixation of the catheter through the cooperation of air balloon inflation and clamping pad, while the design of spring and translation slider ensures the stability and quick reset of the clamping pad during movement, making the device more convenient to remove the catheter and effectively preventing the catheter from slipping, thus providing reliable protection for hemodialysis care.
[0016] 2. A hemodialysis nursing catheter fixing device, which, through the combined use of an angle adjustment rod, a steering bracket and an electric screw, allows the device to adapt to various catheter routing layouts, and is particularly convenient for fixing at corners, greatly improving the flexibility and applicability of use.
[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is the main view of the present invention.
[0020] Figure 2 This is a side view of the present invention.
[0021] Figure 3 This is a structural diagram of the clamping bracket of this utility model;
[0022] Figure 4 This is a cross-sectional view of the clamping bracket of this utility model;
[0023] Figure 5 This is a structural diagram of the clamping pad installation of this utility model.
[0024] Figure label:
[0025] 1. Support frame; 2. Protective sleeve; 3. Lifting bracket; 4. Electric screw; 5. Stabilizer bar; 6. Screw nut; 7. Steering bracket one; 8. Steering bracket two; 9. Angle adjustment rod; 10. Clamping bracket; 11. Flow monitoring component; 12. Mounting bend rod; 13. Flow meter mounting slot; 14. Pressure relief valve; 15. Sealing plug; 16. Clamping guard plate; 17. Air pump; 18. Air supply pipeline; 19. Translation slider; 20. Clamping pad; 21. Translation slide; 22. Partition plate; 23. Spring; 24. Airbag. Detailed Implementation
[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0028] Example 1:
[0029] like Figure 1-5As shown, a hemodialysis nursing catheter fixing device includes a clamping bracket 10. A plurality of clamping guards 16 are fixedly connected to one side of the clamping bracket 10. Two clamping pads 20 are fixedly connected to the inner side of the clamping guards 16. An airbag 24 is fixedly connected to one side of the plurality of clamping pads 20. One side of the airbag 24 is fixedly connected to the clamping bracket 10. One end of the plurality of airbags 24 is fixedly connected to an air supply line 18. An air pump 17 is fixedly connected to one side of the clamping bracket 10. The air outlet of the air pump 17 is fixedly connected to the air supply line 18.
[0030] When it is necessary to fix the catheter, the catheter can be inserted between two clamping pads 20. The clamping pads 20 are made of silicone, which can provide a certain anti-slip effect and prevent the catheter from slipping. Then, air is supplied to multiple airbags 24 at the same time through the air supply line 18. After the airbags 24 inflate, they will squeeze the clamping pads 20 on both sides outward. In this way, multiple catheters can be fixed at the same time. However, when it is necessary to remove the catheter, it is easy to remove it by simply releasing the air in the airbags 24. And because the clamping pads 20 have a certain friction, the catheter will not slip directly, which provides a certain protection effect.
[0031] In this embodiment, a partition 22 is fixedly connected to the inner side of the clamping guard plate 16, and springs 23 are fixedly connected to both sides of the partition 22. The other end of the spring 23 is fixedly connected to the clamping pad 20. The spring 23 can pull the clamping pad 20 inward, so that the clamping pad 20 can be quickly retracted after the airbag 24 is deflated.
[0032] The clamping guard plate 16 has translational grooves 21 on both sides inside. Translational sliders 19 are slidably connected inside the translational grooves 21. Multiple translational sliders 19 are fixedly connected to both sides of the clamping pad 20. The translational sliders 19, together with the translational grooves 21, can make the clamping pad 20 more stable when it moves.
[0033] In this embodiment, one end of the air supply line 18 is fixedly connected to a pressure relief valve 14 via a pipe. One side of the pressure relief valve 14 is fixedly connected to the outside of the clamping bracket 10, and the other side of the clamping bracket 10 is fixedly connected to a sealing plug 15 via a rope. One end of the sealing plug 15 is inserted into the air supply line 18. The pressure relief valve 14 can prevent over-inflation from damaging the airbag 24 and also prevent the clamping pads 20 on both sides from excessively squeezing the conduit, causing the conduit to deform.
[0034] In this embodiment, an angle adjustment rod 9 is fixedly connected to one side of the clamping bracket 10. One end of the multiple angle adjustment rods 9 is rotatably connected to a second steering bracket 8, and the other end of the second steering bracket 8 is rotatably connected to a first steering bracket 7. A lifting bracket 3 is fixedly connected to one side of the first steering bracket 7. The angle adjustment rods 9, together with the second steering bracket 8 and the first steering bracket 7, allow the clamping bracket 10 to change its installation angle, making it more flexible in use and able to handle various conduit routing layouts. The relative angles of the two clamping brackets 10 can be adjusted using the angle adjustment rods 9, which can be used to fix conduits at corners.
[0035] In this embodiment, a screw nut 6 is fixedly connected to the lower end of the lifting bracket 3. An electric screw 4 is threadedly connected to one end of the screw nut 6. A stabilizing rod 5 is slidably connected to the lower part of the lifting bracket 3. A support frame 1 is fixedly connected to the motor end of the electric screw 4 and the lower end of the stabilizing rod 5. The support frame 1 can fix the device to the ground. When the electric screw 4 rotates, it can drive the screw nut 6 to move upward, thereby driving the lifting bracket 3 to move up and down. At the same time, the stabilizing rod 5 can prevent the lifting bracket 3 from tilting when moving up and down.
[0036] In this embodiment: when it is necessary to fix the catheter, the catheter can be inserted between two clamping pads 20. The clamping pads 20 are made of silicone, which can provide a certain anti-slip effect and prevent the catheter from slipping. Then, air is supplied to multiple airbags 24 at the same time through the air supply line 18. After the airbags 24 inflate, they will squeeze the clamping pads 20 on both sides outward. In this way, multiple catheters can be fixed at the same time. However, when it is necessary to remove the catheter, it is only necessary to release the air in the airbags 24 to remove it easily. And because the clamping pads 20 have a certain friction, the catheter will not slip directly, which plays a certain protective role.
[0037] Spring 23 can pull the clamping pad 20 inward, so that the clamping pad 20 can be quickly retracted after the airbag 24 is deflated. The translation slider 19, together with the translation groove 21, can make the clamping pad 20 more stable when moving.
[0038] The pressure relief valve 14 can prevent over-inflation from damaging the airbag 24 and also prevent the clamping pads 20 on both sides from excessively squeezing the tube and causing it to deform.
[0039] The angle adjustment rod 9, together with the second steering bracket 8 and the first steering bracket 7, allows the clamping bracket 10 to change its installation angle, making it more flexible in use and able to handle various conduit routing layouts. The two clamping brackets 10 can use the angle adjustment rod 9 to adjust their relative angle, which can be used to fix conduits at corners.
[0040] The support frame 1 can fix the device to the ground. When the electric screw 4 rotates, it can drive the screw nut 6 to move upward, thereby driving the lifting bracket 3 to move up and down. At the same time, the stabilizing rod 5 can prevent the lifting bracket 3 from tilting when it moves up and down.
[0041] Example 2:
[0042] A hemodialysis nursing catheter fixation device, this embodiment is based on embodiment 1 with the following improvements, such as... Figure 1-5 As shown,
[0043] In this embodiment, a protective sleeve 2 is fixedly connected to one end of the support frame 1 and the lifting bracket 3. The protective sleeve 2 is preferably made of a soft material, such as rubber or cloth, which can prevent the internal screw from being directly exposed to the outside, thus avoiding safety hazards and hygiene problems.
[0044] In this embodiment, the clamping bracket 10 has multiple flow meter mounting slots 13 on one side, a mounting rod 12 is inserted into one end of the flow meter mounting slot 13, and a flow monitoring component 11 is fixedly connected to the other end of the mounting rod 12.
[0045] The flow monitoring component 11 is preferably an ultrasonic flow monitor, which can be inserted into the flow meter mounting slot 13 by installing a bent rod 12. This makes it easy to monitor the flow rate of the liquid in the tubing and facilitates the monitoring of the dialysis process.
[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A hemodialysis nursing catheter fixing device comprising a clamping support (10), characterized in that: The clamping bracket (10) is fixedly connected to one side of multiple clamping guards (16), and two clamping pads (20) are fixedly connected to the inner side of the clamping guards (16). An airbag (24) is fixedly connected to one side of the multiple clamping pads (20), and the clamping bracket (10) is fixedly connected to one side of the airbag (24). An air supply pipe (18) is fixedly connected to one end of the multiple airbags (24), and an air pump (17) is fixedly connected to one side of the clamping bracket (10). The air outlet of the air pump (17) is fixedly connected to the air supply pipe (18).
2. A hemodialysis nursing catheter fixing device according to claim 1, characterized in that: A partition (22) is fixedly connected to the inner side of the clamping guard plate (16), and springs (23) are fixedly connected to both sides of the partition (22). The other end of the springs (23) is fixedly connected to the clamping pad (20).
3. A hemodialysis treatment catheter securement device according to claim 2, wherein: The clamping guard plate (16) has translational grooves (21) on both sides inside. Translational sliders (19) are slidably connected inside the translational grooves (21). Multiple translational sliders (19) are fixedly connected to both sides of the clamping pad (20).
4. The hemodialysis treatment catheter securement device of claim 2, wherein: One end of the gas supply pipeline (18) is fixedly connected to a pressure relief valve (14) via a pipe. One side of the pressure relief valve (14) is fixedly connected to the outside of the clamping bracket (10). The other side of the clamping bracket (10) is fixedly connected to a sealing plug (15) via a rope. One end of the sealing plug (15) is inserted into the gas supply pipeline (18).
5. A hemodialysis treatment catheter securement device according to claim 4, wherein: An angle adjustment rod (9) is fixedly connected to one side of the clamping bracket (10). One end of the multiple angle adjustment rods (9) is rotatably connected to a second steering bracket (8). The other end of the second steering bracket (8) is rotatably connected to a first steering bracket (7). A lifting bracket (3) is fixedly connected to one side of the first steering bracket (7).
6. A hemodialysis treatment catheter securement device according to claim 5, wherein: The lower end of the lifting bracket (3) is fixedly connected to a screw nut (6), one end of which is threadedly connected to an electric screw (4). A slidable stabilizer (5) is connected to the lower part of the lifting bracket (3), and a support frame (1) is fixedly connected to the motor end of the electric screw (4) and the lower end of the stabilizer (5).
7. A hemodialysis treatment catheter securement device as defined in claim 6, wherein: The support frame (1) and the lifting bracket (3) are fixedly connected to a protective sleeve (2) at one end.
8. The hemodialysis treatment catheter securement device of claim 4, wherein: The clamping bracket (10) has multiple flow meter mounting slots (13) on one side. A mounting rod (12) is inserted into one end of the flow meter mounting slot (13), and a flow monitoring component (11) is fixedly connected to the other end of the mounting rod (12).