Waveform balloon catheter
By installing a toothed sleeve and gear assembly on the balloon catheter, the rotation of the waveform balloon is achieved, which solves the problem that existing balloon catheters cannot adapt to the curvature of blood vessels and cavities, and reduces the resistance and damage during catheter advancement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHE JIANG QIANHE CHANGMAI MEDICAL TECH CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-21
AI Technical Summary
Existing balloon catheters cannot be easily rotated during use and cannot adapt to the bends and branches of blood vessels and cavities, increasing resistance and damage during catheter advancement.
A waveform balloon catheter was designed. By installing a toothed sleeve and gear assembly on the outer wall of the catheter, and using a knob to drive the rotating shaft and gears to rotate, the waveform balloon can rotate to adapt to the curvature and branching of blood vessels and cavities.
This reduces resistance and damage during catheter advancement, and improves the ease and safety of catheter operation in complex anatomical structures.
Smart Images

Figure CN224141346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of balloon catheter technology, and in particular to a waveform balloon catheter. Background Technology
[0002] Balloon catheters are a widely used interventional treatment tool in the medical field. They combine the advantages of catheter technology and balloon dilation technology and are used to diagnose and treat a variety of diseases.
[0003] A balloon catheter is a flexible tubular device containing an inflatable balloon. After the balloon is guided to the target location in the body through the catheter, it can be inflated to compress or expand the surrounding blood vessels, cavities, or tissues. In the current technology, most balloon catheters cannot be easily rotated during use, making them unable to adapt well to the bends and branches of blood vessels and cavities. This increases the resistance and damage during catheter advancement, resulting in insufficient practicality. Therefore, a new waveform balloon catheter needs to be designed to address the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waveform balloon catheter.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A waveform balloon catheter includes a tube body, a waveform balloon fixedly mounted on the outer wall of one end of the tube body, a guidewire channel opened inside the waveform balloon, a toothed sleeve fixedly mounted on the outer wall of the tube body, a catheter seat rotatably mounted on the outer wall of the other end of the tube body, a rotating shaft rotatably mounted on the outer wall of the catheter seat through a support mechanism, a gear engaging with the toothed sleeve fixedly mounted at the end of the outer wall of the rotating shaft, a knob fixedly mounted on the outer wall of the rotating shaft, a guidewire port slidably mounted on the inner wall of the catheter seat, and a flushing port communicating with the inside of the catheter seat fixedly mounted on the outer wall of the catheter seat through a connecting mechanism.
[0007] Preferably, the support mechanism includes a support plate fixedly installed on the outer wall of the conduit seat, and the rotating shaft rotatably passes through the support plate.
[0008] Preferably, the connecting mechanism includes a connecting plate fixedly installed on the outer wall of the conduit seat, and the flushing port is fixedly installed on the outer wall of the connecting plate.
[0009] Preferably, a plurality of marking rings are fixedly installed inside the guidewire channel, and each marking ring is made of surgical-grade stainless steel.
[0010] Preferably, two handles are fixedly installed on the outer wall of the catheter seat, and multiple anti-slip protrusions are fixedly installed on the upper and lower end faces of the two handles.
[0011] Preferably, both the guide wire inlet and the flushing inlet are slidably fitted with sealing plugs, and both sealing plugs are made of medical-grade silicone.
[0012] The beneficial effects of this utility model are:
[0013] 1. By setting up components such as a rotating shaft, gears, and toothed sleeves, turning the knob will drive the rotating shaft to rotate, which in turn drives the gears to rotate. This allows the gears to mesh with the toothed sleeves. At this time, the toothed sleeves are subjected to force, which can cause the catheter body to drive the waveform balloon to rotate. By rotating the waveform balloon, it can better conform to the bends and branches of blood vessels and cavities, thereby reducing the resistance and damage during the advancement of the catheter. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a waveform balloon catheter proposed in this utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;
[0016] Figure 3 This is a top view schematic diagram of a waveform balloon catheter proposed in this utility model;
[0017] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;
[0018] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;
[0019] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point C.
[0020] In the diagram: 1. Tube body, 2. Waveform balloon, 3. Guidewire channel, 4. Marking ring, 5. Toothed sleeve, 6. Catheter seat, 7. Support plate, 8. Rotating shaft, 9. Gear, 10. Knob, 11. Guidewire port, 12. Connecting plate, 13. Flushing port, 14. Handle, 15. Sealing plug. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-5A waveform balloon catheter includes a tube body 1, a waveform balloon 2 fixedly installed on the outer wall of one end of the tube body 1, a guidewire channel 3 opened inside the waveform balloon 2, and multiple marking rings 4 fixedly installed inside the guidewire channel 3. Each marking ring 4 is made of surgical grade stainless steel. A toothed sleeve 5 is fixedly installed on the outer wall of the tube body 1, and a catheter seat 6 is rotatably installed on the outer wall of the other end of the tube body 1. A rotating shaft 8 is rotatably installed on the outer wall of the catheter seat 6 through a support mechanism. The support mechanism includes a support plate 7 fixedly installed on the outer wall of the catheter seat 6, and the rotating shaft 8 rotatably passes through the support plate 7.
[0023] A gear 9 with a meshing toothed sleeve 5 is fixedly installed on the outer end of the rotating shaft 8. A knob 10 is fixedly installed on the outer wall of the rotating shaft 8. A guide wire port 11 is slidably installed on the inner wall of the catheter seat 6. A flushing port 13 communicating with the inside of the catheter seat 6 is fixedly installed on the outer wall of the catheter seat 6 through a connecting mechanism. The connecting mechanism includes a connecting plate 12 fixedly installed on the outer wall of the catheter seat 6. The flushing port 13 is fixedly installed on the outer wall of the connecting plate 12. Two handles 14 are fixedly installed on the outer wall of the catheter seat 6. Multiple anti-slip protrusions are fixedly installed on the upper and lower ends of the two handles 14. Sealing plugs 15 are slidably installed on the inner walls of the guide wire port 11 and the flushing port 13. Both sealing plugs 15 are made of medical silicone.
[0024] When using this invention, the wave-shaped balloon 2 can be fixedly installed on the outer wall of one end of the tube body 1, thereby connecting the wave-shaped balloon 2 and the tube body 1. Then, the catheter seat 6 can be rotated and installed on the outer wall of the other end of the tube body 1, and the gear 9 can be engaged with the gear sleeve 5, thereby connecting the catheter seat 6 and the tube body 1. When using the catheter, first pull out the sealing plug 15 on the inner wall of the guidewire port 11, and then hold the catheter seat 6 by the cooperation of the two handles 14 and multiple anti-slip protrusions. The wave-shaped balloon 2 is fitted onto the outer wall of the guidewire through the cooperation of the guidewire channel 3. Then, the catheter can be continuously pushed and inserted into the target position by the guidewire. During this process, the position of the marking ring 4 can be clearly seen by the doctor through imaging means such as fluoroscopy or ultrasound, so as to accurately determine the position of the wave-shaped balloon 2 in the body. This is crucial to ensuring that the catheter can accurately reach the target position.
[0025] At the same time, the knob 10 can be turned to drive the rotating shaft 8 to rotate, and the rotating shaft 8 in turn drives the gear 9 to rotate, thereby causing the gear 9 to mesh with the toothed sleeve 5. At this time, the toothed sleeve 5 is subjected to force, which can cause the tube body 1 to drive the wave balloon 2 to rotate. By rotating the wave balloon 2, it can better conform to the bends and branches of blood vessels and cavities, thereby reducing the resistance and damage of the catheter during the advancement process. After confirming that the catheter and the wave balloon 2 are in the correct position, the sealing plug 15 inside the flushing port 13 can be removed, thereby releasing the seal on the flushing port 13, so that an appropriate amount of flushing fluid can be slowly injected into the wave balloon 2 through the flushing port 13.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A wave balloon catheter comprising a tube (1), characterized in that, A wave-shaped balloon (2) is fixedly installed on the outer wall of one end of the tube body (1). A guide wire channel (3) is opened inside the wave-shaped balloon (2). A toothed sleeve (5) is fixedly installed on the outer wall of the tube body (1). A catheter seat (6) is rotatably installed on the outer wall of the other end of the tube body (1). A rotating shaft (8) is rotatably installed on the outer wall of the catheter seat (6) through a support mechanism. A gear (9) meshing with the toothed sleeve (5) is fixedly installed at the end of the outer wall of the rotating shaft (8). A knob (10) is fixedly installed on the outer wall of the rotating shaft (8). A guide wire port (11) is slidably installed on the inner wall of the catheter seat (6). A flushing port (13) communicating with the inside of the catheter seat (6) is fixedly installed on the outer wall of the catheter seat (6) through a connecting mechanism.
2. The contoured balloon catheter of claim 1, wherein, The support mechanism includes a support plate (7) fixedly installed on the outer wall of the guide tube seat (6), and the rotating shaft (8) rotates through the support plate (7).
3. The contoured balloon catheter of claim 2, wherein, The connecting mechanism includes a connecting plate (12) fixedly installed on the outer wall of the conduit seat (6), and the flushing port (13) is fixedly installed on the outer wall of the connecting plate (12).
4. The contoured balloon catheter of claim 3, wherein, Multiple marking rings (4) are fixedly installed inside the guidewire channel (3), and each marking ring (4) is made of surgical grade stainless steel.
5. A contoured balloon catheter according to claim 4, wherein, Two handles (14) are fixedly installed on the outer wall of the catheter seat (6), and multiple anti-slip protrusions are fixedly installed on the upper and lower ends of the two handles (14).
6. A contoured balloon catheter according to claim 5, wherein, Both the guide wire port (11) and the flushing port (13) are slidably fitted with sealing plugs (15), and both sealing plugs (15) are made of medical silicone.