A minimally invasive radiofrequency ablation puncture holder for peripheral nerves of the knee joint

Abstract

The present invention relates to the field of medical devices, and in particular to a minimally invasive radiofrequency ablation puncture stand for peripheral nerves of a knee joint, comprising a guide needle column and a guide needle sleeve penetrating and embedded in the end of the guide needle column, the lower end of the guide needle column is symmetrically connected with two tube shafts, the ends of the two tube shafts are coaxially fitted with a bearing plate, the bearing plate is connected to the tube shaft, the two bearing plates are symmetrically arranged, the guide needle sleeve corresponds to between the two bearing plates, an iodine storage tank is arranged above the guide needle column, the iodine storage tank is connected to the tube shaft, a plurality of bearing grooves are provided in an annular array on the outer surface of the bearing plate, the inside of the bearing groove is tightly plugged with disinfection cotton, and an adjusting member is installed at the rear end of the guide needle column. The present invention improves the convenience of use and meets the need for disinfection of the puncture needle at the same time.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint. Background Art

[0002] Radiofrequency ablation puncture uses the heat generated by radiofrequency current to introduce radiofrequency energy into the target tissue through a puncture needle, causing the tissue to generate high temperature and coagulate necrosis, thereby achieving the purpose of treatment. Radiofrequency ablation puncture is a minimally invasive and highly effective treatment method that is widely used in many fields.

[0003] When using radiofrequency ablation puncture to treat nerve tissue around the knee joint, a puncture stand is often used to guide the puncture needle so that it can puncture the diseased tissue for treatment. However, the existing puncture stand can only guide the puncture needle during use, but cannot simultaneously sterilize the puncture needle, resulting in medical personnel having to sterilize the radiofrequency needle separately during use, and the operation process is quite cumbersome, resulting in inconvenience in use. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of the knee joint.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of the knee joint, comprising a guide needle column and a guide needle sleeve that penetrates and is embedded in the end of the guide needle column, the lower end of the guide needle column is symmetrically connected to two tube shafts, the ends of the two tube shafts are coaxially fitted with a carrying plate, the carrying plate is connected to the tube shaft, the two carrying plates are symmetrically arranged, the guide needle sleeve corresponds to between the two carrying plates, an iodine tincture storage tank is arranged above the guide needle column, the iodine tincture storage tank is connected to the tube shaft, a plurality of carrying grooves are opened in an annular array on the outer surface of the carrying plate, the interior of the carrying groove is tightly plugged with disinfectant cotton, and an adjusting piece is installed at the rear end of the guide needle column.

[0006] Preferably, a T-shaped frame is fixedly installed at the lower end of the guide needle column, the tube shaft passes through and is rotatably installed on the end of the T-shaped frame, and two connecting hoses are symmetrically fixedly connected to the lower part of the iodine tin storage tank, and the ends of the connecting hoses are fixedly connected to the tube shaft.

[0007] Preferably, a discharge port is provided through the lower end of the tube shaft, a plurality of flow channels are provided through a circular array on the inner surface of the carrier plate, the flow channels are connected to the carrier grooves, the discharge port corresponds to one of the flow channels, and the front and rear end surfaces of the carrier plate are fitted with limit rings, which are embedded in the outer surface of the tube shaft.

[0008] Preferably, a tank cover is screwed onto the upper end of the iodine tin storage tank, and connecting toothed rings are coaxially fixedly installed at the rear ends of the two supporting plates, the two connecting toothed rings are meshed with each other, and a pin sleeve is fixedly installed on the side of the T-shaped frame, and a locking pin is coaxially arranged inside the pin sleeve, and both ends of the locking pin pass through the front and rear ends of the pin sleeve, and the locking pin is slidably matched with the pin sleeve, and the locking pin passes through the rear end of one of the connecting toothed rings.

[0009] Preferably, a pin cap is coaxially inlaid on the outer surface of the locking pin, and the pin cap fits onto the inner surface of the pin sleeve. A fixing spring is fixedly installed on the rear end of the pin cap, and the locking pin passes through the interior of the fixing spring. The rear end of the fixing spring is fixed to the inner rear end of the pin sleeve, and a plurality of pin holes are provided in a circular array at the rear end of one of the connecting gear rings, and the pin holes correspond to the bearing grooves, and the front end of the locking pin fits into the interior of one of the pin holes.

[0010] Preferably, the adjusting member includes a fixing cap coaxially fixedly mounted on the rear end of the guide needle column, a fixing shell is fitted on the outer surface of the fixing cap, a bolt passes through the middle of the rear end of the fixing shell and is tightened, an end of the bolt is tightened on the fixing cap, a secondary bracket is arranged on the lower side of the fixing shell, and a main bracket is arranged on the lower side of the secondary bracket.

[0011] Preferably, a tank rack is fixedly installed on the upper end of the fixed shell, and the end of the tank rack is fixed to the iodine tin storage tank, and a sub-frame seat is fixedly installed on the end of the sub-bracket, and a No. 1 threaded rod is rotatably installed between the front and rear end surfaces inside the sub-frame seat, and the No. 1 threaded rod passes through the rear end of the sub-frame seat, and a No. 1 threaded sleeve is screwed on the outer surface of the No. 1 threaded rod, and a No. 1 connecting frame is fixedly installed on the upper and lower ends of the No. 1 threaded sleeve, and the No. 1 connecting frame passes through the upper and lower ends of the sub-frame seat, and the No. 1 connecting frame is slidably matched with the sub-frame seat, and the end of the No. 1 connecting frame is fixed to the fixed shell.

[0012] Preferably, a main frame seat is fixedly installed on the end of the main bracket, and a No. 2 threaded rod is rotatably installed between the two inner sides of the main frame seat, the No. 2 threaded rod passes through one side of the main frame seat, and a No. 2 threaded sleeve is screwed on the outer surface of the No. 2 threaded rod, and a No. 2 connecting frame is fixedly installed on the upper and lower ends of the No. 2 threaded sleeve, and the No. 2 connecting frame passes through the upper and lower ends of the main frame seat, and the No. 2 connecting frame slides with the main frame seat, and the end of the No. 2 connecting frame is fixed to the sub-bracket, and a clamping seat is fixedly installed on the lower end of the main bracket, and a threaded column is passed through and screwed on the lower end of the clamping seat, and a splint is rotatably installed on the upper end of the threaded column, and the rear end of the splint is fitted to the inner rear end of the clamping seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The sterilizing cotton can be loaded through the provided carrying tray. At this time, the iodine tincture in the iodine tincture storage tank flows to the inside of the tube shaft through the connecting hose, and flows into the flow channel below through the discharge port on the tube shaft to soak the sterilizing cotton. When the puncture needle passes through the guide needle sleeve for guidance, the soaked sterilizing cotton on the two carrying trays can wrap the puncture needle from both sides, so that the puncture needle can be wiped and disinfected by the sterilizing cotton when the needle is inserted or withdrawn. During the process, the medical staff does not need to perform a sterilization operation on the puncture needle separately, thereby effectively improving the convenience of use.

[0015] 2. By pulling the locking pin, the locking pin pushed out by the fixed spring can be received into the pin sleeve, so that the locking pin can be disengaged from the pin hole on the connecting gear ring, allowing the carrier plate to move, and then the carrier plate is rotated to allow the two carrier plates to move toward each other under the action of the connecting gear ring to adjust the position of the disinfection cotton on the carrier plate, so that the used disinfection cotton can be moved away from the disinfection area, and the unused disinfection cotton can be moved to the disinfection area to continue to disinfect the puncture needle. This cycle can achieve the purpose of continuous disinfection of the puncture needle and meet the disinfection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of the knee joint of the present invention;

[0017] Figure 2 It is a schematic diagram of a guide needle column of a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint according to the present invention;

[0018] Figure 3 This is a schematic diagram of a main support of a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint according to the present invention;

[0019] Figure 4 It is a schematic diagram of a bearing plate of a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint according to the present invention;

[0020] Figure 5 This is an internal view of a fixing shell of a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint according to the present invention;

[0021] Figure 6 This is an internal view of a pin sleeve of a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint according to the present invention;

[0022] Figure 7 The figure is an internal view of a carrier plate of a minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint according to the present invention.

[0023] In the figure: 1. main bracket; 2. main frame seat; 3. auxiliary bracket; 4. auxiliary frame seat; 5. guide pin column; 6. iodine storage tank; 7. No. 1 threaded rod; 8. No. 1 threaded sleeve; 9. No. 1 connecting frame; 10. fixed shell; 11. guide pin sleeve; 12. bearing groove; 13. limit ring; 14. bearing plate; 15. disinfection cotton; 16. pipe shaft; 17. connecting hose; 18. tank cover; 19. T-shaped frame; 20. No. 2 threaded rod; 21. No. 2 threaded sleeve; 22. No. 2 connecting frame; 23. holder; 24. splint; 25. threaded column; 26. pin sleeve; 27. locking pin; 28. connecting gear ring; 29. ​​pin hole; 30. bolt; 31. fixing cap; 32. pin cap; 33. fixing spring; 34. tank rack; 35. discharge port; 36. flow channel. DETAILED DESCRIPTION

[0024] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0025] like Figure 1-Figure 7 The minimally invasive radiofrequency ablation puncture frame for peripheral nerves of the knee joint shown in the figure comprises a guide needle column 5 and a guide needle sleeve 11 penetrating and embedded in the end of the guide needle column 5. The guide needle column 5 plays a role in supporting the guide needle sleeve 11. The lower end of the guide needle column 5 is symmetrically connected to two tube shafts 16. The guide needle sleeve 11 plays a role in guiding the puncture needle. The ends of the two tube shafts 16 are coaxially fitted with a bearing plate 14. The tube shaft 16 plays a role in moving and guiding the bearing plate 14. The bearing plate 14 It is connected to the tube axis 16, and the two carrying plates 14 are symmetrically arranged. The guide needle sleeve 11 corresponds to between the two carrying plates 14. An iodine tincture storage tank 6 is arranged above the guide needle column 5, and the iodine tincture storage tank 6 is connected to the tube axis 16. A plurality of carrying grooves 12 are provided in an annular array on the outer surface of the carrying plate 14. The carrying groove 12 is designed with a large bottom and a small mouth, so that the disinfection cotton 15 will not fall after being inserted into the carrying groove 12. The inside of the carrying groove 12 is tightly plugged with the disinfection cotton 15, and an adjusting piece is installed at the rear end of the guide needle column 5.

[0026] A T-shaped frame 19 is fixedly installed at the lower end of the guide needle column 5, and the tube shaft 16 passes through and is rotatably installed on the end of the T-shaped frame 19. The T-shaped frame 19 serves to connect the tube shaft 16. Two connecting hoses 17 are symmetrically fixedly connected to the lower part of the iodine tin storage tank 6. The ends of the connecting hoses 17 are fixedly connected to the tube shaft 16, and the connecting hoses 17 serve to connect the iodine tin storage tank 6 and the tube shaft 16 together.

[0027] A discharge port 35 is provided at the lower end of the tube shaft 16, and a plurality of flow channels 36 are provided in a circular array on the inner surface of the carrying plate 14. The discharge port 35 allows iodine tincture to flow into the flow channels 36. The flow channels 36 are connected to the carrying groove 12, and the discharge port 35 corresponds to one of the flow channels 36. The flow channels 36 guide the iodine tincture into the carrying groove 12 to be absorbed by the disinfection cotton 15. The front and rear end surfaces of the carrying plate 14 are both fitted with limit rings 13, which are embedded in the outer surface of the tube shaft 16. The limit rings 13 prevent the carrying plate 14 and the tube shaft 16 from separating.

[0028] The upper end of the iodine tin storage tank 6 is screwed with a tank cover 18, and the tank cover 18 plays a role in sealing the iodine tin storage tank 6. The rear ends of the two carrying plates 14 are coaxially fixedly installed with connecting toothed rings 28, and the two connecting toothed rings 28 are meshed with each other. The connecting toothed rings 28 play a role in allowing the two carrying plates 14 to rotate toward each other. A pin sleeve 26 is fixedly installed on the side of the T-shaped frame 19, and a locking pin 27 is coaxially arranged inside the pin sleeve 26. The pin sleeve 26 plays a role in fixing the locking pin 27. The two ends of the locking pin 27 penetrate from the front and rear ends of the pin sleeve 26, and the locking pin 27 is slidably matched with the pin sleeve 26. The locking pin 27 penetrates the rear end of one of the connecting toothed rings 28, and the locking pin 27 can lock the connecting toothed ring 28 so that the carrying plate 14 cannot rotate.

[0029] The outer surface of the locking pin 27 is coaxially inlaid with a pin cap 32, and the pin cap 32 fits the inner surface of the pin sleeve 26. The pin cap 32 plays the role of being pushed by the fixing spring 33. The rear end of the pin cap 32 is fixedly installed with a fixing spring 33. The locking pin 27 passes through the interior of the fixing spring 33. The fixing spring 33 plays the role of pushing the locking pin 27 into the pin hole 29. The rear end of the fixing spring 33 is fixed to the inner rear end of the pin sleeve 26. A plurality of pin holes 29 are provided in an annular array at the rear end of one of the connected gear rings 28. The pin holes 29 correspond to the bearing grooves 12, so that after the bearing plate 14 is adjusted and fixed, the disinfection cotton 15 on the bearing plate 14 can be used just in the disinfection area, and the front end of the locking pin 27 fits into the interior of one of the pin holes 29.

[0030] The adjusting member includes a fixing cap 31 coaxially fixedly mounted on the rear end of the guide needle column 5, a fixing shell 10 is fitted on the outer surface of the fixing cap 31, the fixing shell 10 serves to carry the fixing cap 31, a bolt 30 is passed through the middle of the rear end of the fixing shell 10 and is screwed on, the end of the bolt 30 is pressed against the fixing cap 31, the bolt 30 serves to tighten and fix the fixing cap 31, a sub-bracket 3 is arranged at the lower side of the fixing shell 10, a main bracket 1 is arranged at the lower side of the sub-bracket 3, the bolt 30 is loosened to allow the clamped fixing cap 31 to move, thereby driving the guide needle column 5 to rotate, so as to adjust the inclination angle of the guide needle sleeve 11 so that it can meet the insertion angle of the puncture needle.

[0031] A tank rack 34 is fixedly installed on the upper end of the fixed shell 10, and the end of the tank rack 34 is fixed to the iodine tin storage tank 6. The tank rack 34 plays a role in fixing the iodine tin storage tank 6. A sub-frame seat 4 is fixedly installed on the end of the sub-bracket 3. A No. 1 threaded rod 7 is rotatably installed between the front and rear end surfaces inside the sub-frame seat 4. The sub-frame seat 4 plays a role in carrying the No. 1 threaded rod 7. The No. 1 threaded rod 7 penetrates from the rear end of the sub-frame seat 4. A No. 1 threaded sleeve 8 is screwed on the outer surface of the No. 1 threaded rod 7. The No. 1 threaded sleeve 8 plays a role in driving the No. 1 threaded rod 7 to move. A No. 1 connecting frame 9 is fixedly installed on the upper and lower ends of the threaded sleeve 8. The No. 1 connecting frame 9 passes through the upper and lower ends of the sub-frame seat 4. The No. 1 connecting frame 9 is slidably matched with the sub-frame seat 4. On the one hand, the No. 1 connecting frame 9 plays a role of connecting with the fixed shell 10, and on the other hand, it plays a role of preventing the No. 1 threaded sleeve 8 from rotating. The end of the No. 1 connecting frame 9 is fixed to the fixed shell 10, and the No. 1 threaded rod 7 is rotated to enable the No. 1 threaded sleeve 8 tightened on the No. 1 threaded rod 7 to move, thereby driving the guide needle sleeve 11 to move, so as to adjust the front and rear positions of the guide needle sleeve 11.

[0032] A main frame seat 2 is fixedly installed at the end of the main bracket 1, and a No. 2 threaded rod 20 is rotatably installed between the two sides inside the main frame seat 2. The main frame seat 2 plays a role in bearing the No. 2 threaded rod 20. The No. 2 threaded rod 20 passes through one side of the main frame seat 2. A No. 2 threaded sleeve 21 is screwed on the outer surface of the No. 2 threaded rod 20. The No. 2 threaded rod 20 plays a role in driving the No. 2 threaded sleeve 21 to move. The upper and lower ends of the No. 2 threaded sleeve 21 are fixedly installed with a No. 2 connecting frame 22. The No. 2 connecting frame 22 passes through the upper and lower ends of the main frame seat 2. The No. 2 connecting frame 22 slides with the main frame seat 2. On the one hand, the No. 2 connecting frame 22 plays a role in connecting with the auxiliary bracket 3 The second threaded rod 20 is rotated so that the second threaded sleeve 21 screwed on the second threaded rod 20 can move, thereby driving the guide needle sleeve 11 to move, so as to adjust the left and right positions of the guide needle sleeve 11. A holder 23 is fixedly installed at the lower end of the main bracket 1, and a threaded column 25 is passed through and screwed through the lower end of the holder 23. A clamping plate 24 is rotatably installed on the upper end of the threaded column 25. The threaded column 25 drives the clamping plate 24 to move and clamp, and the rear end of the clamping plate 24 fits the inner rear end of the holder 23.

[0033] When in use, the clamping seat 23 is clamped on the edge of the operating bed, and the threaded column 25 is rotated to move the clamping plate 24 up to clamp it on the edge of the operating bed for fixation, and then the No. 2 threaded rod 20 is rotated to enable the No. 2 threaded sleeve 21 screwed on the No. 2 threaded rod 20 to move, thereby driving the guide needle sleeve 11 to move, so as to adjust the left and right position of the guide needle sleeve 11. Similarly, the No. 1 threaded rod 7 is rotated to enable the No. 1 threaded sleeve 8 screwed on the No. 1 threaded rod 7 to move, thereby driving the guide needle sleeve 11 to move, so as to adjust the left and right position of the guide needle sleeve 11. The front and rear positions of the guide needle sleeve 11 can be adjusted to the position required for the operation. At the same time, the bolt 30 can be loosened to allow the clamped fixing cap 31 to move, thereby driving the guide needle column 5 to rotate, so as to adjust the inclination angle of the guide needle sleeve 11 to meet the insertion angle of the puncture needle. Then, the puncture needle can be passed through the guide needle sleeve 11 to guide it to puncture into the knee joint, so that the radio frequency current is transmitted to the diseased tissue around the knee joint through the puncture needle, causing the tissue to generate high temperature and coagulation necrosis, thereby achieving the purpose of treatment. During this process, the iodine in the iodine storage tank 6 will flow to the inside of the tube shaft 16 through the connecting hose 17, and flow into the flow channel 36 below through the discharge port 35 on the tube shaft 16 to soak the disinfection cotton 15, so that when the puncture needle passes through the guide needle sleeve 11 for guidance, the soaked disinfection cotton 15 on the two carrier plates 14 can wrap the puncture needle from both sides, so that the puncture needle can be wiped and disinfected by the disinfection cotton 15 when the needle is inserted or withdrawn, and the locking pin 27 can be pulled at the same time, so that the locking pin 27 pushed out by the fixing spring 33 can be The pin sleeve 26 is received, so that the locking pin 27 is disengaged from the pin hole 29 on the connecting toothed ring 28, allowing the carrier plate 14 to move, and then the carrier plate 14 is rotated, so that the two carrier plates 14 can move toward each other under the action of the connecting toothed ring 28, so as to adjust the position of the disinfection cotton 15 on the carrier plate 14, so that the used disinfection cotton 15 is moved away from the disinfection area, and the unused disinfection cotton 15 is moved to the disinfection area to continue the disinfection operation of the puncture needle, and this cycle is repeated to achieve the purpose of continuously disinfecting the puncture needle.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A minimally invasive radiofrequency ablation puncture frame for peripheral nerves of a knee joint, comprising a guide needle column (5) and a guide needle sleeve (11) penetrating and embedded in the end of the guide needle column (5), characterized in that: The lower end of the guide needle column (5) is symmetrically connected to two tube shafts (16), and the ends of the two tube shafts (16) are coaxially fitted with a bearing plate (14), the bearing plate (14) is connected to the tube shaft (16), the two bearing plates (14) are symmetrically arranged, the guide needle sleeve (11) corresponds to between the two bearing plates (14), an iodine tincture storage tank (6) is arranged above the guide needle column (5), the iodine tincture storage tank (6) is connected to the tube shaft (16), the outer surface of the bearing plate (14) is provided with a plurality of bearing grooves (12) in an annular array, the inside of the bearing grooves (12) is tightly plugged with disinfectant cotton (15), the rear of the guide needle column (5) is provided with a plurality of bearing grooves (12), and the inside of the bearing grooves (12) is tightly plugged with disinfectant cotton (15). An adjusting member is installed at the end, a T-shaped frame (19) is fixedly installed at the lower end of the guide needle column (5), the tube shaft (16) penetrates and is rotatably installed on the end of the T-shaped frame (19), the lower part of the iodine storage tank (6) is symmetrically fixedly connected with two connecting hoses (17), the ends of the connecting hoses (17) are fixedly connected with the tube shaft (16), the lower end of the tube shaft (16) is penetrated and opened with a discharge port (35), the inner surface of the carrying plate (14) is penetrated and opened with a plurality of flow channels (36) in an annular array, the flow channels (36) are connected to the carrying groove (12), the discharge port (35) corresponds to one of the flow channels (36), and the carrying plate (14) The front and rear end surfaces of the T-shaped frame (19) are fitted with a limit ring (13), the limit ring (13) is embedded in the outer surface of the tube shaft (16), the upper end of the iodine storage tank (6) is screwed with a tank cover (18), the rear ends of the two supporting plates (14) are coaxially fixed with a connecting toothed ring (28), the two connecting toothed rings (28) are meshed, the side of the T-shaped frame (19) is fixed with a pin sleeve (26), the interior of the pin sleeve (26) is coaxially provided with a locking pin (27), the two ends of the locking pin (27) pass through the front and rear ends of the pin sleeve (26), the locking pin (27) and the pin sleeve (26) are slidably matched, and the locking pin (27) passes through it. A rear end of a connecting toothed ring (28), the outer surface of the locking pin (27) is coaxially inlaid with a pin cap (32), the pin cap (32) fits the inner surface of the pin sleeve (26), a fixing spring (33) is fixedly installed at the rear end of the pin cap (32), the locking pin (27) passes through the interior of the fixing spring (33), the rear end of the fixing spring (33) is fixed to the rear end of the pin sleeve (26), a plurality of pin holes (29) are formed in an annular array at the rear end of one of the connecting toothed rings (28), the pin holes (29) correspond to the bearing grooves (12), and the front end of the locking pin (27) fits inside one of the pin holes (29).

2. The minimally invasive radiofrequency ablation puncture holder for peripheral nerves of the knee joint according to claim 1, characterized in that: The adjusting member comprises a fixing cap (31) coaxially fixedly mounted on the rear end of the guide pin column (5); a fixing shell (10) is fitted on the outer surface of the fixing cap (31); a bolt (30) passes through the middle of the rear end of the fixing shell (10) and is screwed on; the end of the bolt (30) is pressed against the fixing cap (31); a secondary bracket (3) is arranged at the lower side of the fixing shell (10); and a main bracket (1) is arranged at the lower side of the secondary bracket (3).

3. The minimally invasive radiofrequency ablation puncture holder for peripheral nerves of the knee joint according to claim 2, characterized in that: A tank rack (34) is fixedly mounted on the upper end of the fixed shell (10), and the end of the tank rack (34) is fixed to the iodine storage tank (6). A sub-frame seat (4) is fixedly mounted on the end of the sub-bracket (3). A No. 1 threaded rod (7) is rotatably mounted between the front and rear end surfaces inside the sub-frame seat (4). The No. 1 threaded rod (7) extends through the rear end of the sub-frame seat (4). A No. 1 threaded sleeve (8) is screwed onto the outer surface of the No. 1 threaded rod (7). A No. 1 connecting frame (9) is fixedly mounted on the upper and lower ends of the No. 1 threaded sleeve (8). The No. 1 connecting frame (9) extends through the upper and lower ends of the sub-frame seat (4). The No. 1 connecting frame (9) is slidably matched with the sub-frame seat (4), and the end of the No. 1 connecting frame (9) is fixed to the fixed shell (10).

4. The minimally invasive radiofrequency ablation puncture holder for peripheral nerves of the knee joint according to claim 3, characterized in that: A main frame seat (2) is fixedly mounted on the end of the main bracket (1); a second threaded rod (20) is rotatably mounted between the two sides of the interior of the main frame seat (2); the second threaded rod (20) extends from one side of the main frame seat (2); a second threaded sleeve (21) is screwed onto the outer surface of the second threaded rod (20); a second connecting frame (22) is fixedly mounted on the upper and lower ends of the second threaded sleeve (21); the second connecting frame (22) extends from the upper and lower ends of the main frame seat (2); the second connecting frame (22) is slidably matched with the main frame seat (2); the end of the second connecting frame (22) is fixed to the auxiliary bracket (3); a clamping seat (23) is fixedly mounted on the lower end of the main bracket (1); a threaded column (25) is screwed onto the lower end of the clamping seat (23); a clamping plate (24) is rotatably mounted on the upper end of the threaded column (25); a rear end of the clamping plate (24) is fitted to the rear end of the interior of the clamping seat (23).

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