A bipolar radiofrequency electrode for bone tumor surgery

Abstract

This utility model discloses a bipolar radiofrequency electrode for bone tumor surgery, which includes a cable assembly, a handle, a scalpel, and a scalpel head connected in sequence. The scalpel head includes a suction tube and an outer steel tube that is spaced and sleeved on the suction tube, with a water outlet channel formed between the suction tube and the outer steel tube. The scalpel head includes an insulating head fixed to the distal end of the outer steel tube. The insulating head is provided with a first strip electrode and a second strip electrode arranged side by side. The insulating head located at the first strip electrode and the second strip electrode has several suction holes, which are connected to the suction tube. Several water outlet holes connected to the water outlet channel are provided on both sides of the distal end of the outer steel tube. This solution uses radiofrequency electrodes to irrigate the incision after the resection of benign spinal tumors, which can accurately stop bleeding at soft tissue bleeding points, effectively reducing the amount of bleeding. Furthermore, by utilizing the circulating supply of physiological saline, the first strip electrode and the second strip electrode are effectively wrapped by physiological saline, thereby ensuring the plasma excitation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a bipolar radiofrequency electrode for bone tumor surgery. Background Technology

[0002] Primary spinal tumors are relatively rare, with an annual incidence rate of 2.5–8.5 per 100,000, accounting for less than 5% of all spinal tumors, and benign tumors are the most common. In my country, benign tumors account for 61% of primary spinal tumor patients, with common types including hemangiomas, schwannomas, and osteochondromas. Surgical resection is the main method for treating primary spinal tumors. Traditional open surgery for spinal tumors has disadvantages such as significant trauma, long operation time, large amount of bleeding, slow postoperative recovery, and numerous complications.

[0003] With the increasing popularity of minimally invasive concepts and the continuous advancement of minimally invasive instruments, spinal tumor surgery is gradually becoming more minimally invasive in terms of surgical approaches and procedures. Endoscopic tubular musculoskeletal tumor surgery (ETMS) is being applied to treat musculoskeletal tumors. The core of this technique involves establishing an endoscopic channel through a dilating catheter, then dissecting soft tissue under the microscope to create an artificial cavity; subsequently, the saline medium relied upon for spinal endoscopy is removed to prevent tumor dissemination; tumor curettage is performed under the channel; after tumor removal, the incision is further irrigated, a negative pressure drainage tube is inserted, and the incision is sutured layer by layer.

[0004] However, problems such as bony hemorrhage and multiple soft tissue hemorrhages often occur after tumor resection. Bone wax sealing can effectively control bony hemorrhage. How to inhibit multiple soft tissue hemorrhages while minimizing soft tissue damage is a technical problem that urgently needs to be solved during surgery. Utility Model Content

[0005] To address the aforementioned shortcomings of the prior art, this invention provides a bipolar radiofrequency electrode for bone tumor surgery, thereby solving the technical problems mentioned in the background section.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A bipolar radiofrequency electrode for bone tumor surgery is provided, comprising a cable assembly, a handle, a scalpel, and a scalpel head connected in sequence. The scalpel head includes a suction tube and an outer steel tube spaced around the suction tube, with a water outlet channel formed between the suction tube and the outer steel tube. The scalpel head includes an insulating head fixed to the distal end of the outer steel tube, with a first strip electrode and a second strip electrode arranged side by side on the insulating head. The insulating head located at the first and second strip electrodes has several suction holes that communicate with the suction tube. Several water outlet holes communicating with the water outlet channel are provided on both sides of the distal end of the outer steel tube. The cable assembly includes a cable connected to the first and second strip electrode wires, a drip tube communicating with the water outlet channel, and a negative pressure tube communicating with the suction tube.

[0008] Furthermore, the insulating head includes a socket portion that is sealed and inserted into the distal end of the outer steel pipe. The socket portion is provided with a connecting hole that communicates with a plurality of suction holes, and the distal end of the suction tube is sealed and connected to the connecting hole.

[0009] Furthermore, arc-shaped recesses are provided on both sides of the socket, and a gap space is formed between the arc-shaped recesses and the outer steel pipe to connect the water outlet channel and several water outlet holes.

[0010] Furthermore, a guide groove is provided on the side wall at the far end of the outer steel pipe, and the first strip electrode and the second strip electrode are disposed on the socket located in the guide groove.

[0011] Furthermore, the first and second strip electrodes are provided with several arched portions that are recessed on the inside and protruding on the outside in the extending direction, and the ports of several suction holes are respectively provided on the inner side of several arched portions.

[0012] Furthermore, the extension directions of the first and second strip electrodes are parallel to the extension direction of the outer steel pipe, and both the first and second strip electrodes are spaced apart from the side wall of the guide groove.

[0013] Furthermore, a guide tip is provided at the front end of the insulating head.

[0014] Furthermore, an insulating layer is fitted onto the outer steel pipe.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This approach uses a bipolar radiofrequency electrode with a multi-convex structure to stop bleeding at multiple soft tissue bleeding points after bone tumor resection, which can effectively reduce tissue damage, ensure surgical safety, and reduce surgical risks.

[0017] 2. This method allows physiological saline to be sequentially led to the blade tip through the drip tube, water outlet channel, and water outlet hole, and then collected in the guide groove, so that the first and second strip electrodes are effectively wrapped by physiological saline, thereby ensuring the plasma excitation efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a bipolar radio frequency electrode.

[0019] Figure 2 This is a schematic diagram of the cutter head.

[0020] Figure 3 This is a cross-sectional view of the cutter head.

[0021] Figure 4 This is a schematic diagram of the structure of the insulating head, the first strip electrode, and the second strip electrode.

[0022] Among them, 1. Cable assembly, 2. Handle, 3. Blade bar, 4. Blade head, 5. Suction tube, 6. Outer steel tube, 7. Water outlet channel, 8. Insulating head, 9. First strip electrode, 10. Second strip electrode, 11. Suction hole, 12. Water outlet hole, 13. Cable, 14. Drip tube, 15. Negative pressure tube, 16. Socket part, 17. Connecting hole, 18. Arc-shaped recess, 19. Guide groove, 20. Arched part, 21. Guide tip, 22. Insulation layer. Detailed Implementation

[0023] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0024] like Figures 1 to 4As shown, the bipolar radiofrequency electrode for bone tumor surgery in this scheme includes a cable assembly 1, a handle 2, a scalpel 3, and a scalpel head 4 connected in sequence. The scalpel 3 includes a suction tube 5 and an outer steel tube 6 that is spaced and sleeved on the suction tube 5. The suction tube 5 and the outer steel tube 6 are coaxially arranged, and a water outlet channel 7 is formed between the suction tube 5 and the outer steel tube 6. An insulating layer 22 is sleeved on the outer steel tube 6. The scalpel head 4 includes an insulating head 8 fixed to the distal end of the outer steel tube 6. The insulating head 8 is provided with a first strip electrode 9 and a second strip electrode 10 arranged side by side, and the extension directions of the first strip electrode 9 and the second strip electrode 10 are... Parallel to the extension direction of the outer steel pipe 6, the insulating head 8 located at the first strip electrode 9 and the second strip electrode 10 is provided with a plurality of suction holes 11, and the plurality of suction holes 11 are connected to the suction tube 5. The outer steel pipe 6 has a plurality of water outlet holes 12 on both sides of the distal end, which are connected to the water outlet channel 7. The cable assembly 1 includes a cable 13, a drip tube 14 and a negative pressure tube 15. The cable 13 passes through the handle 2 and is connected to the first strip electrode 9 and the second strip electrode 10. The water outlet channel 7 passes through the handle 2 and is connected to the drip tube 14. The suction tube 5 passes through the handle 2 and is connected to the negative pressure tube 15.

[0025] As an optional implementation, the insulating head 8 includes a socket 16 that is sealed and inserted into the distal end of the outer steel pipe 6. The socket 16 is provided with a connecting hole 17 that communicates with a plurality of suction holes 11. The distal end of the suction pipe 5 is sealed and connected to the connecting hole 17. An arc-shaped recess 18 is provided on both sides of the socket 16, and an arc-shaped recess 18 and the outer steel pipe 6 form a gap space for connecting the water outlet channel 7 and a plurality of water outlet holes 12.

[0026] As an optional implementation, a guide groove 19 is provided on the side wall at the far end of the outer steel pipe 6, and the first strip electrode 9 and the second strip electrode 10 are disposed on the socket portion 16 located in the guide groove 19, and the first strip electrode 9 and the second strip electrode 10 are both separated from the side wall of the guide groove 19.

[0027] As an optional implementation, the first strip electrode 9 and the second strip electrode 10 are provided with a plurality of arched portions 20 that are recessed on the inside and protruding on the outside in the extending direction, and the ports of the plurality of suction holes 11 are respectively provided on the inner side of the plurality of arched portions 20.

[0028] As an optional implementation, the front end of the insulating head 8 is provided with a guide tip 21 so that the blade 4 can peel off and isolate normal tissue during surgery, so as to effectively isolate unwanted coagulated tissue.

[0029] In summary, this approach uses bipolar radiofrequency electrodes to achieve hemostasis of the surrounding soft tissue after bone tumor resection, which can effectively reduce surgical risks. Furthermore, the circulation supply of physiological saline ensures that the first strip electrode 9 and the second strip electrode 10 are effectively enveloped by physiological saline, thereby guaranteeing plasma excitation efficiency. At the same time, the several arched portions 20 on the first strip electrode 9 and the second strip electrode 10 can achieve single-point hemostasis at multiple locations during the hemostasis process, avoiding large-area continuous coagulation, thereby reducing thermal damage and nerve damage.

Claims

1. A bipolar radiofrequency electrode for bone tumor surgery, characterized in that, The device includes a cable assembly, a handle, a blade, and a blade head connected in sequence. The blade includes a suction tube and an outer steel tube that is spaced and fitted onto the suction tube, forming a water outlet channel between the suction tube and the outer steel tube. The blade head includes an insulating head fixed to the distal end of the outer steel tube. The insulating head is provided with a first strip electrode and a second strip electrode arranged side by side. The insulating head located at the first strip electrode and the second strip electrode has several suction holes that communicate with the suction tube. Several water outlet holes communicating with the water outlet channel are provided on both sides of the distal end of the outer steel tube. The cable assembly includes a cable connected to the first strip electrode and the second strip electrode, a drip tube communicating with the water outlet channel, and a negative pressure tube communicating with the suction tube.

2. The bipolar radiofrequency electrode for bone tumor surgery according to claim 1, characterized in that, The insulating head includes a socket portion that is sealed and inserted into the distal end of the outer steel pipe. The socket portion is provided with a connecting hole that communicates with a plurality of suction holes. The distal end of the suction tube is sealed and connected to the connecting hole.

3. The bipolar radiofrequency electrode for bone tumor surgery according to claim 2, characterized in that, Both sides of the socket are provided with arc-shaped recessed platforms, and the arc-shaped recessed platforms and the outer steel pipe form a gap space for connecting the water outlet channel and several water outlet holes.

4. The bipolar radiofrequency electrode for bone tumor surgery according to claim 2, characterized in that, A guide groove is provided on the side wall at the far end of the outer steel pipe, and the first strip electrode and the second strip electrode are disposed on the socket located in the guide groove.

5. The bipolar radiofrequency electrode for bone tumor surgery according to claim 4, characterized in that, The first and second strip electrodes are provided with a plurality of arched portions that are recessed on the inside and protruding on the outside in the extending direction, and the ports of the plurality of suction holes are respectively provided on the inner side of the plurality of arched portions.

6. The bipolar radiofrequency electrode for bone tumor surgery according to claim 4, characterized in that, The first and second strip electrodes extend in the same direction as the outer steel pipe, and both the first and second strip electrodes are spaced apart from the side wall of the guide groove.

7. The bipolar radiofrequency electrode for bone tumor surgery according to claim 1, characterized in that, The insulator head has a guide tip at its front end.

8. The bipolar radiofrequency electrode for bone tumor surgery according to claim 1, characterized in that, An insulating layer is fitted onto the outer steel pipe.

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