A hepatic artery chemo-catheter securement clamp
By designing a hepatic artery chemotherapy catheter clamp with adjustable clamping width, the problem of existing technologies being unable to adapt to catheters of different diameters has been solved, improving treatment stability and patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
- Filing Date
- 2025-02-10
- Publication Date
- 2026-07-24
AI Technical Summary
Existing hepatic artery chemotherapy catheter clamps cannot be flexibly adjusted according to the catheter diameter, resulting in poor fixation and affecting the safety and stability of treatment.
A clamp comprising a movable plate and a retaining ring is designed, with the clamping width adjusted by a screw, and stability and comfort provided by a limiting block and a flexible pad, combined with Velcro and an elastic bandage for convenient fixation.
This allows for adaptive fixation of catheters of different diameters using clamps, improving stability and patient comfort during treatment and reducing the risk of complications.
Smart Images

Figure CN224540762U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemotherapy catheter fixation technology, specifically to a hepatic artery chemotherapy catheter stabilizing clamp. Background Technology
[0002] A hepatic arterial infusion (HAI) is a medical device specifically designed to deliver chemotherapy drugs directly to the liver. This device is commonly used to treat primary or metastatic liver cancer. By injecting chemotherapy drugs directly into the liver's blood supply system, the concentration of the drug at the tumor site can be increased, thereby enhancing the treatment effect and reducing side effects on other tissues throughout the body.
[0003] To ensure the correct and stable positioning of the hepatic artery chemotherapy catheter during treatment and to prevent displacement or dislodgement, healthcare professionals typically use specialized clamps to secure it. These clamps must not only firmly hold the catheter in place but also minimize patient discomfort and the risk of potential complications.
[0004] However, in actual clinical applications, the diameter of the hepatic artery can vary significantly among different patients. Therefore, to ensure good operability and drug delivery effectiveness, healthcare professionals need to select a catheter of appropriate diameter based on the specific situation. However, existing clamps often cannot be flexibly adjusted according to the catheter diameter during use. This limitation may result in clamps not being able to fully adapt to catheters of different diameters, thus affecting the catheter fixation effect and the safety of treatment. Currently, no effective solution has been proposed to address the problems in this technology. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes a hepatic artery chemotherapy catheter stabilizing clamp to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A hepatic artery chemotherapy catheter stabilizing clamp includes a base plate, a fixing ring fixedly connected above the base plate, a movable plate on one side of the fixing ring, a fixing block fixedly connected to one side of the movable plate, an mounting plate on one side of the movable plate, a threaded hole inside the mounting plate, a screw threadedly connected inside the threaded hole, and the screw rotatably connected to the fixing block.
[0007] Furthermore, the mounting plate is fixedly connected to the base plate.
[0008] Furthermore, to prevent the movable plate from shifting during movement, limit blocks are provided on both sides of the screw, with one end of the limit block fixedly connected to the movable plate.
[0009] Furthermore, the mounting plate is provided with a limiting groove, and the limiting block matches the limiting groove.
[0010] Furthermore, the fixing block has a groove inside, and a connecting plate is installed inside the groove. One end of the screw passes through the fixing block and connects to the connecting plate.
[0011] Furthermore, in order to provide the necessary friction without damaging the catheter and to ensure the safe fixation of the catheter, flexible pads are provided on the inner side of the fixing ring and the moving plate.
[0012] Furthermore, elastic bandages are provided on both sides of the base plate. One elastic bandage has a Velcro loop at one end and a Velcro hook at the other end, with the Velcro loop and the Velcro hook matching.
[0013] Furthermore, the elastic bandage is fixedly connected to the base plate via mounting stakes.
[0014] Furthermore, to improve wearing comfort, a skin-friendly patch is fixedly connected to the bottom of the base plate.
[0015] Furthermore, the skin-friendly patch is made of polyurethane foam.
[0016] The beneficial effects of this utility model are as follows: (1) By setting a movable plate and a fixing ring, the movable plate can move back and forth by rotating the screw, thereby adjusting the clamping width of the clamp. This design allows the clamp to adapt to catheters of different diameters, ensuring the stability and safety of the catheter during treatment. In addition, limiting blocks are set on both sides of the screw, and the limiting blocks match the limiting grooves on the mounting plate. This design not only restricts the movement direction of the movable plate, making it move only in a straight line, but also effectively prevents the movable plate from shifting or rotating during use, greatly improving the stability and reliability of the entire device, and providing a safer and more effective guarantee for the use of hepatic artery chemotherapy catheters.
[0017] (2) By fixing a skin-friendly patch made of polyurethane foam to the bottom of the base plate and equipping elastic bandages with Velcro on both sides, the comfort and safety of the patient when wearing it can be improved, while also facilitating quick installation and removal. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1This is a front view of a hepatic artery chemotherapy catheter stabilizing clamp according to an embodiment of the present utility model; Figure 2 This is a side view of a hepatic artery chemotherapy catheter stabilizing clamp according to an embodiment of the present utility model; Figure 3 This is a connection diagram of the moving plate of a hepatic artery chemotherapy catheter stabilizing clamp according to an embodiment of the present utility model; Figure 4 This is a structural diagram of the internal structure of a hepatic artery chemotherapy catheter stabilizing clamp fixing block according to an embodiment of the present utility model.
[0020] In the picture: 1. Base plate; 2. Fixing ring; 3. Moving plate; 4. Fixing block; 5. Mounting plate; 6. Threaded hole; 7. Screw; 8. Limiting block; 9. Limiting groove; 10. Groove; 11. Connecting plate; 12. Flexible pad; 13. Elastic bandage; 14. Velcro rough side; 15. Velcro hook side; 16. Mounting post; 17. Skin-friendly patch. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] According to an embodiment of the present invention, a hepatic artery chemotherapy catheter stabilizing clamp is provided.
[0023] Example 1
[0024] like Figures 1-4As shown, the hepatic artery chemotherapy catheter stabilizing clamp according to an embodiment of the present invention includes a base plate 1, a fixing ring 2 fixedly connected to the top of the base plate 1, a movable plate 3 provided on one side of the fixing ring 2, a fixing block 4 fixedly connected to one side of the movable plate 3, and a mounting plate 5 provided on one side of the movable plate 3. The mounting plate 5 is fixedly connected to the base plate 1. The mounting plate 5 has a threaded hole 6 inside, and a screw 7 is threadedly connected inside the threaded hole 6. The screw 7 is rotatably connected to the fixing block 4. Limiting blocks 8 are provided on both sides of the screw 7. One end of the limiting block 8 is fixedly connected to the movable plate 3. The mounting plate 5 has a limiting groove 9. Matching the limiting groove 9, the limiting block 8 moves within the limiting groove 9, effectively preventing the moving plate 3 from shifting or rotating during use. The fixing block 4 has a groove 10 inside, and a connecting plate 11 is located inside the groove 10. One end of the screw 7 passes through the fixing block 4 and connects to the connecting plate 11, preventing the moving plate 3 from rotating when the screw 7 rotates. Flexible pads 12 are provided on the inner sides of the fixing ring 2 and the moving plate 3 to provide necessary friction without damaging the catheter, ensuring the safe fixation of the catheter and reducing potential wear on the catheter surface. With this solution, when fixing the catheter, the catheter can be placed inside the fixing ring 2, and then the screw 7 can be rotated to move within the threaded hole 6, thereby moving the moving plate 3 closer to the catheter. Since the moving plate 3 is typically designed with an arc-shaped clamping surface, it gradually clamps the catheter during movement, ensuring the stability and safety of the catheter during treatment. This design not only accommodates catheters of different diameters, but also provides sufficient clamping force to prevent the catheter from shifting or coming out during use.
[0025] like Figures 1-4 As shown, elastic bandages 13 are provided on both sides of the base plate 1. One end of the elastic bandage 13 is fixedly connected to a Velcro loop side 14, and the other end of the elastic bandage 13 is fixedly connected to a Velcro hook side 15. The Velcro loop side 14 and the Velcro hook side 15 match. The elastic bandages 13 are fixedly connected to the base plate 1 via mounting posts 16. A skin-friendly patch 17 is fixedly connected to the bottom end of the base plate 1. The skin-friendly patch 17 is made of polyurethane foam. Polyurethane foam is lightweight and has good cushioning properties, which can disperse pressure and protect the skin from pressure injury. It also has good breathability and moisture absorption, which helps to keep the skin dry. With the above solution, when it is necessary to fix the catheter, the base plate 1 is placed at the end of the catheter and fixed to the patient's limb with the elastic bandages 13 and Velcro. The Velcro design makes the installation and removal of the clamp more convenient, saving the operation time of medical staff.
[0026] In summary, by utilizing the above-mentioned technical solution of this utility model, the movable plate 3 and the fixing ring 2 are provided. The movable plate 3 can move back and forth by rotating the screw 7, thereby adjusting the clamping width of the clamp. This design allows the clamp to adapt to catheters of different diameters, ensuring the stability and safety of the catheter during treatment. Furthermore, by providing limiting blocks 8 on both sides of the screw 7, and matching the limiting grooves 9 on the mounting plate 5, this design not only restricts the movement direction of the movable plate 3, allowing it to move only in a straight line, but also effectively prevents the movable plate 3 from shifting or rotating during use, greatly improving the stability and reliability of the entire device. This provides a safer and more effective guarantee for the use of hepatic artery chemotherapy catheters. Additionally, by fixing a skin-friendly patch 17 made of polyurethane foam to the bottom end of the base plate 1, and equipping both sides with elastic bandages 13 with Velcro, the comfort and safety of the patient during wear are improved, while also facilitating quick installation and removal.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hepatic artery chemotherapy catheter stabilizing clamp, characterized in that, The device includes a base plate (1), a fixing ring (2) fixedly connected above the base plate (1), a movable plate (3) on one side of the fixing ring (2), a fixing block (4) fixedly connected on one side of the movable plate (3), an mounting plate (5) on one side of the movable plate (3), a threaded hole (6) inside the mounting plate (5), a screw (7) threadedly connected inside the threaded hole (6), and the screw (7) rotatably connected to the fixing block (4); a flexible pad (12) is provided on the inner side of the fixing ring (2) and the movable plate (3); elastic bandages (13) are provided on both sides of the base plate (1), one end of the elastic bandage (13) is fixedly connected to a hook and loop fastener (14), and the other end of the elastic bandage (13) is fixedly connected to a hook and loop fastener (15), and the hook and loop fastener (14) and the hook and loop fastener (15) are matched.
2. The hepatic artery chemotherapy catheter stabilizing clamp according to claim 1, characterized in that, The mounting plate (5) is fixedly connected to the base plate (1).
3. The hepatic artery chemotherapy catheter stabilizing clamp according to claim 1, characterized in that, The screw (7) is provided with limiting blocks (8) on both sides, and one end of the limiting block (8) is fixedly connected to the moving plate (3).
4. A hepatic artery chemotherapy catheter stabilizing clamp according to claim 1, characterized in that, The mounting plate (5) is provided with a limiting groove (9), which matches the limiting block (8).
5. A hepatic artery chemotherapy catheter stabilizing clamp according to claim 1, characterized in that, The fixing block (4) has a groove (10) inside, and a connecting plate (11) is provided inside the groove (10). One end of the screw (7) passes through the fixing block (4) and is connected to the connecting plate (11).
6. A hepatic artery chemotherapy catheter stabilizing clamp according to claim 1, characterized in that, The elastic bandage (13) is fixedly connected to the base plate (1) by the mounting stake (16).
7. A hepatic artery chemotherapy catheter stabilizing clamp according to claim 1, characterized in that, The bottom end of the base plate (1) is fixedly connected to a skin-friendly patch (17).
8. A hepatic artery chemotherapy catheter stabilizing clamp according to claim 7, characterized in that, The skin-friendly patch (17) is made of polyurethane foam.