Microwave ablation catheter capable of being used under endoscope

Abstract

The microwave ablation catheter capable of being used under the endoscope comprises an insertion column, a needle head is arranged at the left end of the insertion column, an insulation sleeve is arranged at the right end of the insertion column, a cable seat is fixedly connected to the bottom of the insertion column, a cable is arranged in the cable seat, and a cable is arranged in the cable seat. The outer side of the insulating sleeve is in contact with two symmetrically distributed connecting rings, the two connecting rings are hinged to each other, the bottom of each connecting ring is fixedly connected with a connecting seat, and a connecting mechanism is arranged on each connecting seat. According to the utility model, through the design of the supporting blocks and the pressing blocks, cables can be clamped and positioned, the cables can be separated, combed and fixed, the bending or winding of the cables can be prevented from influencing the use of the conduit, the mutual interference among the cables can also be prevented, and the cables are tightly pressed through the acting force of the springs, so that the service life of the conduit is prolonged. And the influence on use caused by damage to the cable due to too large clamping force on the cable can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ablation catheters, in particular to a microwave ablation catheter that can be used under endoscopy. Background Art

[0002] A microwave ablation catheter is a device used for microwave ablation therapy, which is an interventional treatment method that uses microwave energy to heat the target tissue in the body to high temperatures, thereby destroying abnormal tissue or tumors.

[0003] The utility model patent with the patent authorization announcement number CN216823638U discloses a microwave ablation catheter. The specific technical scheme is: a microwave ablation catheter, including a needle, a needle tube connected to the needle, and a cable arranged in the needle tube and connected to the needle, one end of the needle is provided with an insulating sleeve, the other end of the insulating sleeve is provided with a reinforcing tube, the other end of the reinforcing tube is connected to the needle tube, the other end of the needle tube is inserted and arranged in the handle seat, the other end of the handle seat is connected to the handle body, the other end of the handle body is provided with a handle cap, and the other end of the cable is located in the handle body and connected to a connector. The utility model solves the problem of cooling water leakage caused by the ablation catheter being melted by heat in the prior art.

[0004] In the above prior art, during the use of microwave ablation catheters, since a cable is arranged at the bottom of the catheter, the catheter needs to be held in hand during operation. However, since the catheter needs to be moved, it is not convenient to limit the cable, and the cable is easy to bend or entangle, which may interfere with the operation. Therefore, improvements are needed. Utility Model Content

[0005] The utility model aims to provide a microwave ablation catheter which can be used under endoscopy, thereby solving the problem of inconvenient position limiting of the cable.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a microwave ablation catheter that can be used under endoscopy, comprising a plug post, a needle is provided at the left end of the plug post, an insulating sleeve is provided at the right end of the plug post, a cable seat is fixedly connected to the bottom of the plug post, a cable is provided inside the cable seat, the outer side of the insulating sleeve is in contact with two symmetrically distributed connecting rings, the two connecting rings are hinged to each other, the bottom of each connecting ring is fixedly connected to a connecting seat, a connecting mechanism is provided on the connecting seat, and a limiting mechanism is provided on the cable.

[0007] Preferably, the connection mechanism includes an insert block, the inner side of the connection ring is fixedly connected with an insert block, the insert block is plugged into the insulating sleeve, the outer sides of the two connection seats are fixedly connected with magnets, the two magnets are mutually attracted, the outer side of the connection seat and the bottom of the magnet are fixedly connected with a fixed block, the two fixed blocks are in contact with each other, the outer side of one of the fixed blocks is fixedly connected with a clamping block, the clamping block is made of rubber, and the clamping block is clamped with the other fixed block. By designing the connection mechanism, it is convenient to limit the connection ring.

[0008] Preferably, a slot is provided inside the insulating sleeve, and an insert block is inserted inside the slot. The slot is designed so that the insert block can be inserted into the slot.

[0009] Preferably, the fixing block is made of rubber material, and the fixing block is fixedly connected to the magnet. By designing the fixing block, the two connection seats can be connected and fixed.

[0010] Preferably, a card slot is provided inside the fixing block, and a card block is connected inside the card slot. The card slot is designed so that the card block can be inserted into the card slot.

[0011] Preferably, the limiting mechanism includes a support block, the bottom of the cable contacts the support block, the bottom of the support block is rotatably connected to a screw rod through a bearing, the screw rod is threadedly connected to a connection seat, the bottom of the screw rod is fixedly connected to a handle, the top of the cable contacts a pressure block, the pressure block is slidably connected to the connection seat, one end of the pressure block close to the connection seat is fixedly connected to a guide block, the guide block is slidably connected to the connection seat, the guide block has a guide rod for internal sliding adjustment, the guide rod is fixedly connected to the connection seat, and a spring is arranged on the outside of the guide rod. By designing a limiting mechanism, the cable can be limited.

[0012] Preferably, one end of the spring is fixedly connected to the guide block, and the other end of the spring is fixedly connected to the connecting seat. By designing the spring, the force of the spring can act on the guide block. By designing the spring, the force of the spring can act on the guide block.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model can play a role of clamping and positioning the cables by designing the supporting block and the pressing block, and can separate, comb and fix the cables to prevent the bending or winding of the cables from affecting the use of the conduit, and can also prevent mutual interference between the cables. The cables are compressed by the action of the spring to avoid excessive clamping force on the cables causing damage to the cables and affecting their use.

[0015] 2. The utility model can connect and fix the connecting ring and the plug post by designing the connection between the plug block and the slot. The connecting seats can be connected and fixed by the adsorption between the two magnets and the connection between the card block and the card slot. Then, the connecting ring and the plug post can be connected for use. The connecting ring and the connecting seat structure can be easily disassembled and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A three-dimensional diagram of the local structure;

[0018] Figure 3 For this utility model Figure 1 A three-dimensional diagram of the local structure of the connecting ring;

[0019] Figure 4 For this utility model Figure 3 A front cross-sectional view of a local structure of a connecting seat;

[0020] Figure 5 For this utility model Figure 4 A magnified image of point A;

[0021] Figure 6 For this utility model Figure 4 Enlarged view of point B.

[0022] In the figure: 1. plug post; 2. needle; 3. insulating sleeve; 4. cable seat; 5. cable; 6. connecting ring; 7. connecting seat; 8. connecting mechanism; 9. limiting mechanism; 81. plug block; 82. slot; 83. magnet; 84. fixing block; 85. clamping block; 86. clamping slot; 91. supporting block; 92. screw; 93. handle; 94. pressure block; 95. guide block; 96. guide rod; 97. spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 , Figure 2 , Figure 3A microwave ablation catheter that can be used under endoscopy includes a plug post 1, a needle 2 is provided at the left end of the plug post 1, an insulating sleeve 3 is provided at the right end of the plug post 1, a cable seat 4 is fixedly connected to the bottom of the plug post 1, a cable 5 is provided inside the cable seat 4, and the outer side of the insulating sleeve 3 is in contact with two symmetrically distributed connecting rings 6, the two connecting rings 6 are hinged to each other, and the bottom of each connecting ring 6 is fixedly connected to a connecting seat 7, a connecting mechanism 8 is provided on the connecting seat 7, and a limiting mechanism 9 is provided on the cable 5.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The connecting mechanism 8 includes an insert block 81, the inner side of the connecting ring 6 is fixedly connected with the insert block 81, the insert block 81 is plugged with the insulating sleeve 3, the inner side of the insulating sleeve 3 is provided with a slot 82, the inner side of the slot 82 is plugged with the insert block 81, and the slot 82 is designed so that the insert block 81 can be inserted into the slot 82. The outer sides of the two connecting seats 7 are fixedly connected with magnets 83, and the two magnets 83 are mutually attracted. The outer side of the connecting seat 7 and the bottom of the magnet 83 are fixedly connected with a fixed block 84, and the two fixed blocks 84 are in contact with each other, and the fixed Block 84 is made of rubber material, and the fixed block 84 is fixedly connected to the magnet 83. By designing the fixed block 84, the two connecting seats 7 can be connected and fixed. A clamping block 85 is fixedly connected to the outer side of one of the fixed blocks 84, and the clamping block 85 is made of rubber material. The clamping block 85 is clamped with the other fixed block 84. A clamping groove 86 is opened inside the fixed block 84, and the clamping block 85 is clamped inside the clamping groove 86. By designing the clamping groove 86, the clamping block 85 can be clamped into the clamping groove 86. By designing the connecting mechanism 8, it is convenient to limit the connecting ring 6.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6The limiting mechanism 9 includes a support block 91, the bottom of the cable 5 contacts the support block 91, the bottom of the support block 91 is rotatably connected to a screw rod 92 through a bearing, the screw rod 92 is threadedly connected to the connection seat 7, the bottom of the screw rod 92 is fixedly connected to a handle 93, the top of the cable 5 contacts a pressing block 94, the pressing block 94 is slidably connected to the connection seat 7, the end of the pressing block 94 close to the connection seat 7 is fixedly connected to a guide block 95, the guide block 95 is slidably connected to the connection seat 7, the internal sliding adjustment of the guide block 95 is provided with a guide rod 96, the guide rod 96 is fixedly connected to the connection seat 7, a spring 97 is arranged on the outside of the guide rod 96, one end of the spring 97 is fixedly connected to the guide block 95, and the other end of the spring 97 is fixedly connected to the connection seat 7. By designing the spring 97, the force of the spring 97 can act on the guide block 95, and by designing the spring 97, the force of the spring 97 can act on the guide block 95. By designing the limiting mechanism 9, the cable 5 can be limited.

[0027] The specific implementation process of the utility model is as follows: during use, when it is necessary to limit the cable 5, first pass the cable 5 through the connecting seat 7, and then turn the handle 93. The handle 93 drives the screw rod 92 to rotate, so that the screw rod 92 makes a threaded motion. The screw rod 92 will drive the support block 91 to move upward, and the support block 91 pushes the cable 5 to move upward. The cable 5 drives the pressure block 94 to move upward, and the pressure block 94 will drive the guide block 95 to slide along the guide rod 96. The guide block 95 will squeeze the spring 97. Through the action of the support block 91 and the pressure block 94, the cable 5 can be clamped and positioned, and the cables 5 can be separated, combed and fixed, which can prevent the bending or entanglement of the cable 5 from affecting the use of the catheter, and can also prevent the cables 5 from interfering with each other. The cable 5 is compressed by the action force of the spring 97, which can avoid excessive clamping force on the cable 5, causing damage to the cable 5 and affecting its use.

[0028] When it is necessary to disassemble the connecting ring 6, first release the limit on the cable 5, and then move the connecting seat 7 in the direction where the two connecting seats 7 are away from each other, the connecting seat 7 drives the magnet 83 to move, and at the same time the connecting seat 7 drives the fixing block 84 to move, and the fixing block 84 can drive the clamping block 85 to move and separate from the clamping slot 86. As the connecting seat 7 rotates, the connecting seat 7 drives the connecting ring 6 to rotate, and the connecting ring 6 drives the plug-in block 81 to move, so that the plug-in block 81 is separated from the slot 82. At this time, the connecting ring 6 can be removed from the insulating sleeve 3, which is convenient for disassembly and use.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microwave ablation catheter that can be used under endoscopy, comprising a plug post (1), characterized in that: The left end of the plug post (1) is provided with a needle head (2), the right end of the plug post (1) is provided with an insulating sleeve (3), the bottom of the plug post (1) is fixedly connected to a cable seat (4), a cable (5) is arranged inside the cable seat (4), the outer side of the insulating sleeve (3) is in contact with two symmetrically distributed connecting rings (6), the two connecting rings (6) are hinged to each other, the bottom of each connecting ring (6) is fixedly connected to a connecting seat (7), a connecting mechanism (8) is arranged on the connecting seat (7), and a limiting mechanism (9) is arranged on the cable (5).

2. The microwave ablation catheter that can be used under endoscopy according to claim 1, characterized in that: The connecting mechanism (8) comprises an insert block (81), the inner side of the connecting ring (6) is fixedly connected with the insert block (81), the insert block (81) is plugged into the insulating sleeve (3), the outer sides of the two connecting seats (7) are fixedly connected with magnets (83), the two magnets (83) are attracted to each other, the outer side of the connecting seat (7) and located at the bottom of the magnets (83) are fixedly connected with a fixing block (84), the two fixing blocks (84) are in contact with each other, the outer side of one of the fixing blocks (84) is fixedly connected with a clamping block (85), the clamping block (85) is made of rubber, and the clamping block (85) is clamped with the other fixing block (84).

3. The microwave ablation catheter that can be used under endoscopy according to claim 1, characterized in that: A slot (82) is provided inside the insulating sleeve (3), and an insert block (81) is inserted into the slot (82).

4. The microwave ablation catheter that can be used under endoscopy according to claim 2, characterized in that: The fixing block (84) is made of rubber material, and the fixing block (84) is fixedly connected to the magnet (83).

5. The microwave ablation catheter that can be used under endoscopy according to claim 2, characterized in that: A clamping slot (86) is provided inside the fixing block (84), and a clamping block (85) is clamped inside the clamping slot (86).

6. The microwave ablation catheter that can be used under endoscopy according to claim 1, characterized in that: The limiting mechanism (9) comprises a support block (91), the bottom of the cable (5) contacts the support block (91), the bottom of the support block (91) is rotatably connected to a screw rod (92) via a bearing, the screw rod (92) is threadedly connected to the connecting seat (7), the bottom of the screw rod (92) is fixedly connected to a handle (93), the top of the cable (5) contacts a pressing block (94), the pressing block (94) is slidably connected to the connecting seat (7), one end of the pressing block (94) close to the connecting seat (7) is fixedly connected to a guide block (95), the guide block (95) is slidably connected to the connecting seat (7), the guide block (95) is internally slidably adjusted by a guide rod (96), the guide rod (96) is fixedly connected to the connecting seat (7), and a spring (97) is arranged on the outside of the guide rod (96).

7. The microwave ablation catheter that can be used under endoscopy according to claim 6, characterized in that: One end of the spring (97) is fixedly connected to the guide block (95), and the other end of the spring (97) is fixedly connected to the connecting seat (7).

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