Full-water-cooling flexible microwave ablation catheter

Abstract

The utility model belongs to the field of flexible microwave ablation catheters, and particularly relates to a full-water-cooling flexible microwave ablation catheter which comprises a microwave device, the left end of the microwave device is fixedly connected with a catheter, the right portion of the outer side of the microwave device is fixedly connected with a connecting pipe, and the outer side of the connecting pipe is provided with a connecting ring through a bearing. The outer side of the connecting ring is fixedly connected with a handle, the handle is provided with an angle adjusting mechanism, the lower end of the microwave device is fixedly provided with two symmetrically-distributed circulating water connectors, the interiors of the circulating water connectors are slidably connected with a connecting seat, and the lower end of the connecting seat is fixedly connected with a circulating pipe. The limiting frame, the supporting frame, the limiting ring and other structures are additionally arranged on the outer side of the circulating water connector, after the connecting base and the circulating water connector are connected, the limiting frame can be driven to be clamped to the outer side of the connecting base through the elastic force of the first spring, and therefore the situation that the circulating pipe is separated from the circulating water connector due to pulling can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of flexible microwave ablation catheter technology, specifically a fully water-cooled flexible microwave ablation catheter. Background Technology

[0002] During the use of microwave ablation catheters, a water-cooling device is required to cool the catheter. According to patent application publication number CN117322994A, a fully water-cooled flexible microwave ablation catheter utilizes full water-cooling technology. In addition to filling the plastic sheath, cooling water is injected into the space between the two antenna poles through a through-hole on the antenna reflector, allowing the cooling water to directly cool and protect the antenna radiating head. Due to the excellent thermal conductivity of the metal antenna poles, the antenna tip also maintains a low temperature.

[0003] However, in existing water-cooling devices, the connection between the circulation tube and the microwave unit is achieved through friction. During operation, the circulation tube can be pulled and easily slips off the connection. Furthermore, the smooth, rounded surface of the microwave unit makes it unstable to hold. Therefore, improvements to the existing technology are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a fully water-cooled flexible microwave ablation catheter, which solves the problems of unstable circulation tube connection and inconvenient microwave device handling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully water-cooled flexible microwave ablation catheter, comprising a microwave unit, a catheter fixedly connected to the left end of the microwave unit, a connecting pipe fixedly connected to the right side of the outer side of the microwave unit, a connecting ring mounted on the outer side of the connecting pipe via a bearing, a handle fixedly connected to the outer side of the connecting ring, an angle adjustment mechanism provided on the handle, two symmetrically distributed circulating water interfaces fixedly installed at the lower end of the microwave unit, a connecting seat slidably connected inside the circulating water interface, a circulating pipe fixedly connected to the lower end of the connecting seat, a limit frame hinged to the outer side of the circulating water interface, a support frame fixedly connected to the outer side of the limit frame, a spring provided inside the support frame, and a limit ring fixedly connected to the outer side of the circulating water interface.

[0006] Preferably, a sealing ring is bonded inside the circulating water interface, and the sealing ring contacts the connecting seat, so that the sealing ring can contact the connection between the circulating water interface and the connecting seat.

[0007] Preferably, the limiting ring is located outside the first spring, and the limiting frame is engaged with the connecting seat, so that the limiting ring can limit the first spring.

[0008] Preferably, one end of the spring is fixedly connected to the support frame, and the other end of the spring is fixedly connected to the circulating water interface. The spring can automatically reset the support frame through its elastic force.

[0009] Preferably, the angle adjustment mechanism includes a flip frame, which is hinged to the outside of the handle. A tooth is fixedly connected to the lower end of the flip frame, and a spring is provided at the upper end of the flip frame. A support plate is fixedly connected to the outside of the handle, and the flip frame can drive the tooth to deflect.

[0010] Preferably, the outer side of the connecting tube is provided with a plurality of evenly distributed toothed grooves, the teeth are slidably connected to the toothed grooves, and the teeth can limit the use angle of the handle through the toothed grooves.

[0011] Preferably, one end of the second spring is fixedly connected to the flipping frame, and the other end of the second spring is fixedly connected to the support plate. The second spring can automatically reset the flipping frame through its elastic force.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model adds a limiting frame, a support frame, and a limiting ring to the outside of the circulating water interface. After the connecting seat and the circulating water interface are connected, the limiting frame can be driven by the elastic force of the spring to lock onto the outside of the connecting seat, thereby effectively preventing the circulating pipe from detaching from the circulating water interface due to pulling.

[0014] 2. This utility model adds a connecting tube, a handle, and an angle adjustment mechanism to the microwave oven. During use, the angle of the handle can be adjusted through the angle adjustment mechanism, making the microwave oven easier to hold. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A magnified three-dimensional sectional view of the local structure;

[0017] Figure 3 For the present utility model Figure 1 Enlarged view of the A-section structure;

[0018] Figure 4 For the present utility model Figure 3 A 3D magnified view of the flipping frame.

[0019] In the diagram: 1. Microwave unit; 2. Conduit; 3. Connecting pipe; 4. Connecting ring; 5. Handle; 6. Angle adjustment mechanism; 7. Circulating water interface; 8. Connecting seat; 9. Circulating pipe; 10. Sealing ring; 11. Limiting frame; 12. Support frame; 13. Limiting ring; 14. Spring 1; 61. Tilting frame; 62. Tooth; 63. Tooth groove; 64. Spring 2; 65. Support plate. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 , Figure 2 A fully water-cooled flexible microwave ablation catheter includes a microwave unit 1. A catheter 2 is fixedly connected to the left end of the microwave unit 1. A connecting pipe 3 is fixedly connected to the right side of the microwave unit 1. A connecting ring 4 is installed on the outside of the connecting pipe 3 via a bearing. A handle 5 is fixedly connected to the outside of the connecting ring 4. An angle adjustment mechanism 6 is provided on the handle 5. Two symmetrically distributed circulating water interfaces 7 are fixedly installed at the lower end of the microwave unit 1. A connecting seat 8 is slidably connected inside the circulating water interface 7. A circulating pipe 9 is fixedly connected to the lower end of the connecting seat 8. A limit frame 11 is hinged to the outside of the circulating water interface 7. A support frame 12 is fixedly connected to the outside of the limit frame 11. A spring 14 is provided inside the support frame 12. A limit ring 13 is fixedly connected to the outside of the circulating water interface 7.

[0022] Please see Figure 1 , Figure 2 A sealing ring 10 is bonded inside the circulating water interface 7. The sealing ring 10 contacts the connecting seat 8. The sealing ring 10 can contact the connection between the circulating water interface 7 and the connecting seat 8. The limiting ring 13 is located outside the spring 14. The limiting frame 11 is snapped into the connecting seat 8. The limiting ring 13 can limit the spring 14. One end of the spring 14 is fixedly connected to the support frame 12, and the other end of the spring 14 is fixedly connected to the circulating water interface 7. The spring 14 can automatically reset the support frame 12 through its elastic force.

[0023] Please see Figure 1 , Figure 3 , Figure 4The angle adjustment mechanism 6 includes a flip frame 61, which is hinged to the outside of the handle 5. A tooth 62 is fixedly connected to the lower end of the flip frame 61, and a spring 64 is provided at the upper end of the flip frame 61. A support plate 65 is fixedly connected to the outside of the handle 5. The flip frame 61 can drive the tooth 62 to deflect. Multiple evenly distributed tooth grooves 63 are opened on the outside of the connecting pipe 3. The tooth 62 is slidably connected to the tooth grooves 63. The tooth 62 can limit the use angle of the handle 5 through the tooth grooves 63. One end of the spring 64 is fixedly connected to the flip frame 61, and the other end of the spring 64 is fixedly connected to the support plate 65. The spring 64 can automatically reset the flip frame 61 through its elastic force.

[0024] The specific implementation process of this utility model is as follows: When in use, press the support frame 12, the support frame 12 drives the limiting frame 11 to deflect and compress the spring 14. Then, insert the connecting seat 8 above the circulation pipe 9 into the inside of the circulation water interface 7. When the connecting seat 8 contacts the sealing ring 10, release the support frame 12, the spring 14 returns to its original position, and the spring 14 can drive the limiting frame 11 to engage with the outside of the connecting seat 8 through its elastic force, thus completing the limiting of the connecting seat 8 and the circulation pipe 9.

[0025] When it is necessary to hold the microwave 1, push the flipping frame 61 to flip it. The flipping frame 61 drives the tooth 62 to deflect and compress the second spring 64. When the tooth 62 disengages from the tooth groove 63, the limiting of the connecting ring 4 and the handle 5 can be released. Then, turn the handle 5 to adjust it to a suitable angle for holding. After the adjustment is completed, release the flipping frame 61 and the second spring 64 returns to its original position. The second spring 64 can use its elasticity to drive the tooth 62 to engage with the adjusted tooth groove 63, thus making it easy to hold the microwave 1.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully water-cooled flexible microwave ablation catheter comprising a microwave applicator (1), characterized in that: The left end of the microwave (1) is fixedly connected with a catheter (2), the right part of the outer side of the microwave (1) is fixedly connected with a connecting pipe (3), the outer side of the connecting pipe (3) is installed with a connecting ring (4) through a bearing, the outer side of the connecting ring (4) is fixedly connected with a handle (5), the handle (5) is provided with an angle adjusting mechanism (6), the lower end of the microwave (1) is fixedly installed with two symmetrically distributed circulating water interfaces (7), the inside of the circulating water interface (7) is slidably connected with a connecting seat (8), the lower end of the connecting seat (8) is fixedly connected with a circulating pipe (9), the outer side of the circulating water interface (7) is hingedly connected with a limiting frame (11), the outer side of the limiting frame (11) is fixedly connected with a supporting frame (12), the inside of the supporting frame (12) is provided with a spring one (14), and the outer side of the circulating water interface (7) is fixedly connected with a limiting ring (13).

2. The all-water-cooled flexible microwave ablation catheter of claim 1, wherein: The inside of the circulating water interface (7) is bonded with a sealing ring (10), and the sealing ring (10) is in contact with the connecting seat (8).

3. The all-water-cooled flexible microwave ablation catheter of claim 1, wherein: The limiting ring (13) is located on the outer side of the spring one (14), and the limiting frame (11) is clamped with the connecting seat (8).

4. The all-water-cooled flexible microwave ablation catheter of claim 1, wherein: One end of the spring one (14) is fixedly connected with the supporting frame (12), and the other end of the spring one (14) is fixedly connected with the circulating water interface (7).

5. The all-water-cooled flexible microwave ablation catheter of claim 1, wherein: The angle adjusting mechanism (6) comprises a turnover frame (61), the outer side of the handle (5) is hingedly connected with a turnover frame (61), the lower end of the turnover frame (61) is fixedly connected with a tooth (62), the upper end of the turnover frame (61) is provided with a spring two (64), and the outer side of the handle (5) is fixedly connected with a supporting plate (65).

6. A fully water-cooled flexible microwave ablation catheter according to claim 5, wherein: The outer side of the connecting pipe (3) is provided with a plurality of uniformly distributed tooth grooves (63), and the tooth (62) is slidably connected with the tooth groove (63).

7. A fully water-cooled flexible microwave ablation catheter according to claim 5, wherein: One end of the spring two (64) is fixedly connected with the turnover frame (61), and the other end of the spring two (64) is fixedly connected with the supporting plate (65).

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