Nerve entrapment releasing radio frequency trocar

Abstract

The utility model relates to the technical field of medical instruments, and discloses a nerve entrapment releasing radio frequency trocar, which comprises a needle rod, the left end of the needle rod is fixedly connected with a handheld groove, the right end of the top of the outer wall of the needle rod is provided with a needle head groove, the right end of the needle rod is provided with a blocking part, the inside of the blocking part adopts a concave design, and the left end of the needle rod is provided with a needle head groove. Pricking needles are arranged on the front side and the rear side of the right end of the needle rod, a needle handle is fixedly connected to the left end of the handheld groove, and an injector mounting groove is formed in the left side of the needle handle. According to the utility model, the handheld groove assists in holding, the syringe mounting groove is matched with the needle rod channel to realize medicine injection release adhesion, the blocking part and the pricking needle are cooperated and controlled by virtue of the needle head groove, and the ligament is released by virtue of the concave structure, so that accurate medicine injection and effective ligament release can be realized in nerve entrapment treatment, the operation is convenient and flexible, the difficulty is reduced, and the treatment efficiency is improved. Resource waste is reduced, and operation efficiency and treatment effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a radiofrequency cannula for releasing nerve entrapment. Background Technology

[0002] The nerve entrapment release radiofrequency cannula is a medical device primarily used to treat pain symptoms caused by nerve entrapment. Radiofrequency refers to radiofrequency current. This cannula can treat the tissues surrounding the nerve by emitting radiofrequency current. When a nerve is compressed by surrounding tissues, it can cause discomfort symptoms such as pain and numbness. The nerve entrapment release radiofrequency cannula uses radiofrequency energy at specific frequencies and power levels to ablate or modulate the tissue compressing the nerve. This modulation is similar to fine-tuning the transmission of nerve signals, thus weakening the pain signals received by the brain.

[0003] A search revealed Chinese patent publication number CN220309192U, which discloses a novel radiofrequency cannula needle. The needle includes a pressure cap (first end) and a puncture assembly connected to a needle seat (third end) via an elastic component (second end). A liner seat (sixth end) is provided at one end of the pressure cap, and a liner (fifth end) is bonded and fixed to the liner seat (sixth end) and passes through the pressure cap, elastic component (second end), and needle seat (third end) sequentially. The puncture assembly includes a coated needle tube (fourth end) inserted inside the liner (fifth end) and a needle tube front end. The needle tube front end includes a bending angle A, and the side of the front end away from the bending angle A is obliquely cut or has a pen-tip structure. The design of the elastic component (second end), bending angle A, and the imaging section further facilitates the easy insertion and removal of the radiofrequency electrode, simplifying clinical operation and application, and improving the patient's medical experience. However, this solution only focuses on the convenience of radiofrequency electrode insertion and removal, and is not comprehensive enough in addressing the comprehensive treatment needs of nerve entrapment. Furthermore, this solution relies on a specific front end structure and elastic component to achieve radiofrequency-related operations, resulting in poor flexibility when dealing with complex nerve entrapment situations and limiting the release methods. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a radiofrequency cannula for releasing nerve entrapment, which aims to improve the existing technology that relies on specific front end structures and elastic components to achieve radiofrequency-related operations. However, this technology lacks flexibility when dealing with complex nerve entrapment situations, resulting in limited release methods.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a radiofrequency cannula needle for releasing nerve entrapment, comprising a needle shaft, a hand-held groove fixedly connected to the left end of the needle shaft, a needle tip groove formed at the top right end of the outer wall of the needle shaft, a blocking part formed at the right end of the needle shaft, the interior of the blocking part being concave, needles being provided on both the front and rear sides of the right end of the needle shaft, a needle handle fixedly connected to the left end of the hand-held groove, a syringe mounting groove formed on the left side of the needle handle, and a pulse flow adjustment mechanism provided on the front side of the needle handle.

[0006] The above technical solution utilizes a handheld groove for gripping, a syringe mounting groove that works with the needle shaft channel to inject medication and loosen adhesions, and a blocking part that works in conjunction with the needle and is controlled by the needle tip groove. By using a concave structure to loosen ligaments, it achieves both precise medication injection and effective ligament loosening in the treatment of nerve entrapment. The operation is convenient and flexible, reducing difficulty, minimizing resource waste, and improving surgical efficiency and treatment effectiveness.

[0007] As a further description of the above technical solution:

[0008] The pulse flow adjustment mechanism includes an inlet located at the front right end of the needle handle. Electrodes are fixedly connected to both the upper and lower ends of the inner wall of the inlet. A voltage regulator is fixedly installed inside the needle handle. Both electrodes are electrically connected to the voltage regulator. A conductive rod is fixedly connected to the right end of the voltage regulator. The right end of the conductive rod is fixedly connected to the middle of the left end of the needle handle. An insulating layer is provided on the outer left side of the needle handle.

[0009] The above technical solution involves connecting a pulsed current through an inlet, transmitting current to a voltage regulator via an electrode, and adjusting the voltage as needed. The voltage regulator then directs the pulsed current through a conductive rod within the needle shaft, which is protected by an insulating layer. This achieves precise detection of nerve and surrounding tissue information during radiofrequency testing and precise control of the pulsed current voltage during thermocoagulation, allowing the needle tip to generate appropriate heat to coagulate the lesion tissue. This effectively releases nerve entrapment and improves treatment accuracy and safety.

[0010] As a further description of the above technical solution:

[0011] The syringe mounting slot has a conical design inside, and limit strips are fixedly connected at equal intervals inside the syringe mounting slot.

[0012] The above technical solution allows for easy insertion and positioning of the syringe by a conical design inside the syringe mounting slot, guiding the syringe barrel to gradually fit tightly into the mounting slot. Once the syringe is inserted into the syringe mounting slot, the limiting strip prevents the syringe from shaking or rotating during use, ensuring stability when injecting drugs.

[0013] As a further description of the above technical solution:

[0014] A mounting base is fixedly connected to the outer right side of the handheld groove, and the outer wall of the mounting base is designed with various different sizes.

[0015] Through the above technical solution, the outer wall of the mounting base is designed with a variety of different sizes, which allows the hollow sleeve to have multiple adaptation methods. The outer wall of different sizes can be matched with hollow sleeves of different specifications, increasing the versatility of the device.

[0016] As a further description of the above technical solution:

[0017] The needle bar is provided with a hollow sleeve on the outside, and the left end of the hollow sleeve is engaged with the outer wall of the mounting base.

[0018] The above technical solution involves the hollow sleeve's inner left end engaging with the outer wall of the mounting base, which protects the needle bar from accidental impacts or contamination.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the handheld groove is curved and has an anti-slip design.

[0021] Through the above technical solution: the curved design of the hand-held groove conforms to the ergonomic principle, allowing the doctor's hand to fit better on the groove, improving the comfort of holding, and the anti-slip design can prevent the doctor's hand from slipping during operation.

[0022] As a further description of the above technical solution:

[0023] The electrode at the bottom is the positive electrode, and the electrode at the top is the negative electrode.

[0024] The above technical solution enables the positive and negative poles to allow the current to flow correctly in components such as voltage regulators in a preset direction, thereby achieving effective regulation of the pulse current.

[0025] As a further description of the above technical solution:

[0026] The interior of the blocking part is a smooth, damage-resistant blunt tip, while the exterior of the needle has a rounded design.

[0027] Through the above technical solution: the smooth, damage-resistant blunt tip inside the blocking part can avoid sharp damage to nerves and other important tissues during ligament release operations, and the smooth design on the outside of the needle can reduce tearing and damage to tissues during auxiliary operations.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the hand-held groove assists in gripping, the syringe mounting groove cooperates with the needle bar channel to achieve drug injection and loosening of adhesions, the blocking part works with the needle and is controlled by the needle groove, and the concave structure is used to loosen the ligaments. In the treatment of nerve entrapment, it can accurately inject drugs and effectively loosen ligaments. The operation is convenient and flexible, reducing the difficulty, reducing resource waste, and improving surgical efficiency and treatment effect.

[0030] 2. In this utility model, a pulse current is connected through the inlet, and the electrode conducts the current to the voltage regulator. The voltage regulator adjusts the voltage as needed, and the pulse current is directionally conducted within the needle rod protected by an insulating layer through the conductive rod. This enables precise detection of nerve and surrounding tissue information during radiofrequency testing and precise control of the pulse current voltage during thermocoagulation, so that the needle tip generates appropriate heat to coagulate the lesion tissue, effectively relieving nerve entrapment and improving the accuracy and safety of treatment. Attached Figure Description

[0031] Figure 1 A three-dimensional view of a radiofrequency cannula for releasing nerve entrapment proposed in this utility model;

[0032] Figure 2 This is a schematic diagram of the internal structure of a radiofrequency cannula for releasing nerve entrapment proposed in this utility model;

[0033] Figure 3 This is a cross-sectional view of a radiofrequency cannula for releasing nerve entrapment proposed in this utility model;

[0034] Figure 4 This is a schematic diagram of the electrode structure in a radiofrequency cannula for releasing nerve entrapment proposed in this utility model;

[0035] Figure 5 This is a partial structural diagram of a radiofrequency cannula for releasing nerve entrapment proposed in this utility model.

[0036] Legend:

[0037] 1. Needle bar; 2. Pulse flow adjustment mechanism; 201. Inlet; 202. Electrode; 203. Voltage regulator; 204. Conductive rod; 205. Insulating layer; 3. Handhold groove; 4. Needle tip groove; 5. Blocking part; 6. Needle; 7. Needle handle; 8. Syringe mounting slot; 9. Limiting strip; 10. Mounting base; 11. Hollow sleeve. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0039] Reference Figure 2 , Figure 3 and Figure 5 This utility model provides an embodiment of a radiofrequency cannula for releasing nerve entrapment, comprising a needle rod 1. A handheld groove 3 is fixedly connected to the left end of the needle rod 1, facilitating a stable grip on the needle rod 1 and ensuring operational precision. A needle tip groove 4 is provided at the top right end of the outer wall of the needle rod 1, aiding in better control of the needle tip direction and force during operation. A blocking part 5 is provided at the right end of the needle rod 1, with a concave design to facilitate ligament release. The right end of the needle rod 1 is provided with needles on both the front and rear sides. The needle 6 can assist in fine operations such as slight picking or positioning of local tissues. The left end of the hand-held groove 3 is fixedly connected to the needle handle 7, which serves to connect the hand-held groove 3 with other components. The left side of the needle handle 7 is provided with a syringe mounting slot 8, which is used to install a syringe to realize the function of drug injection to loosen adhesions. The front side of the needle handle 7 is provided with a pulse flow adjustment mechanism 2, which can perform radiofrequency testing and thermal coagulation operations. By adjusting the pulse flow, different surgical needs can be met, ensuring the smooth progress of the operation and improving the treatment effect.

[0040] Specifically, the needle shaft 1, as the main structure of the entire instrument, serves as a connector and support. The hand-held groove 3 on the left end facilitates the doctor's hand operation, allowing for a stable grip on the cannula during surgery, ensuring the accuracy and stability of the operation. When medication is needed to release adhesions, the syringe mounting slot 8 on the left side of the needle handle 7 can be used to install the syringe. The medication is then injected into the target site through the channel inside the needle shaft 1. The medication acts on the adhered tissue, gradually loosening it and relieving nerve entrapment symptoms. When using the concave design of the needle tip to release ligaments, the concave design of the blocking part 5 on the right end of the needle shaft 1 can generate appropriate force on the ligament under specific operating methods. This is located on the anterior and posterior sides of the right end of the needle shaft 1. The needle 6 can gently pluck or locate local tissues, working in conjunction with the blocking part 5 to loosen ligaments. The presence of the needle groove 4 also helps to better control the direction and force of the needle tip during the operation, allowing the doctor to more accurately apply the blocking part 5 to the ligaments that need to be loosened. By using the concave structure of the blocking part 5 to perform moderate compression and displacement of the ligaments, the ligaments that are compressing the nerve are gradually loosened, restoring the normal activity space of the nerve, thereby relieving the discomfort symptoms caused by nerve entrapment. Compared with existing nerve entrapment release knives, the operation is more convenient and flexible, reducing the difficulty of operation, while avoiding the waste of resources caused by using multiple single-function instruments, thus improving surgical efficiency and treatment effect.

[0041] Reference Figure 1 , Figure 3 and Figure 4 The pulse current adjustment mechanism 2 includes an inlet 201, located at the front right end of the needle handle 7. The inlet 201 serves as a channel for external pulse current input, facilitating connection to a pulse current generator. Electrodes 202 are fixedly connected to the upper and lower ends of the inner wall of the inlet 201. The electrodes 202 receive the pulse current and conduct the current, providing a basis for subsequent adjustment and transmission. A voltage regulator 203 is fixedly installed inside the needle handle 7. The voltage regulator 203 adjusts the input pulse current voltage according to surgical requirements, ensuring that the pulse current voltage output to the needle bar 1 is within a suitable range to meet the different requirements of radiofrequency testing and thermocoagulation operations. Both electrodes 202 are connected to the voltage regulator. The voltage regulator 203 is electrically connected to ensure stable current transmission and effective regulation. A conductive rod 204 is fixedly connected to the right end of the voltage regulator 203. The conductive rod 204 transmits the regulated current to the needle rod 1, so that the pulse current can be conducted inside the needle rod 1, thereby producing the corresponding radiofrequency or thermal coagulation effect at the needle tip. The right end of the conductive rod 204 is fixedly connected to the middle of the left end of the needle rod 1, realizing the effective connection of the pulse current from the voltage regulator 203 to the needle rod 1. An insulating layer 205 is provided on the outer left side of the needle rod 1. The insulating layer 205 ensures the directional conduction of the pulse current inside the needle rod 1, avoids current leakage and causes unnecessary damage to the surrounding tissue, and ensures the safety and precision of the operation.

[0042] Specifically, the inlet 201, serving as the access channel for external pulse current, is located on the front right end of the needle handle 7 for easy connection to relevant pulse current generating devices. When the pulse current enters the inlet 201, the electrodes 202 fixedly connected to the upper and lower ends of its inner wall will contact the pulse current and conduct current. These two electrodes 202 transmit the received current to the voltage regulator 203 fixedly installed inside the needle handle 7. The voltage regulator 203 can adjust the input pulse current voltage according to the surgical requirements to ensure that the pulse current voltage output to the needle bar 1 is within a suitable range, meeting the different requirements of radiofrequency testing and thermocoagulation operations. The current regulated by the voltage regulator 203 is transmitted to the middle of the left end of the needle bar 1 through the conductive rod 204 fixedly connected to its right end, thereby enabling the pulse current to be conducted inside the needle bar 1. Due to the external left side of the needle bar 1 An insulating layer 205 is provided to ensure the directional conduction of the pulse current inside the needle rod 1, preventing current leakage from causing unnecessary damage to surrounding tissues. During radiofrequency testing, a suitable pulse current is conducted to the needle tip through the needle rod 1. Doctors can obtain relevant information about the nerve and surrounding tissues, such as the relationship between the nerve's location and the surrounding tissues, by detecting the response of the tissues around the needle tip to radiofrequency. During thermocoagulation, the voltage regulator 203 adjusts the pulse current voltage to a level that generates sufficient heat at the needle tip. The current is conducted to the needle tip through the conductive rod 204 and the needle rod 1. The heat generated at the needle tip is used to coagulate specific tissues, performing thermocoagulation treatment on some diseased or abnormal nerve tissues, thereby achieving the purpose of relieving nerve entrapment and eliminating the influence of diseased tissues, and realizing the effective treatment of nerve entrapment syndrome.

[0043] Reference Figure 1 and Figure 3 The syringe mounting groove 8 has a conical design inside, which facilitates the insertion and positioning of the syringe and helps to install the syringe quickly and accurately. The syringe mounting groove 8 has equidistant fixed connections of limit strips 9 inside, which can effectively fix the syringe and prevent it from shaking or rotating during use, ensuring the stability of the injection operation. The right side of the handheld groove 3 is fixedly connected to the mounting base 10. The mounting base 10 provides a connection base of various sizes for the hollow sleeve 11, which enhances the versatility and expandability of the device. The outer wall of the mounting base 10 has a variety of different sizes, which can be adapted to different specifications of hollow sleeves 11, making it easy to combine and adjust according to actual needs. The needle bar 1 is provided with a hollow sleeve 11 outside. The hollow sleeve 11 can protect the needle bar 1 from external interference and can also serve as a carrier for auxiliary devices, improving the practicality and multi-functionality of the device. The left end of the hollow sleeve 11 is engaged with the outer wall of the mounting base 10. The engaging connection method ensures a stable connection between the hollow sleeve 11 and the mounting base 10, making the overall structure more reliable.

[0044] Specifically, the conical design inside the syringe mounting slot 8 facilitates the insertion and positioning of the syringe, guiding the syringe barrel to gradually fit tightly into the mounting slot. After the syringe is inserted into the syringe mounting slot 8, the limiting strip 9 prevents the syringe from shaking or rotating during use, ensuring stability when injecting drugs. The outer wall of the mounting base 10 adopts a variety of different sizes, allowing the hollow sleeve 11 to have multiple fitting methods. Different sizes of outer walls can match different specifications of hollow sleeves 11, increasing the versatility of the device. The left end of the hollow sleeve 11 is engaged with the outer wall of the mounting base 10, protecting the needle rod 1 from accidental collisions or contamination.

[0045] Reference Figure 3 , Figure 4 and Figure 5 The outer wall of the handheld groove 3 is curved and has an anti-slip design. The curved design of the handheld groove 3 conforms to the ergonomic principle, allowing doctors to hold it comfortably. The anti-slip design effectively prevents the hand from slipping during operation, ensuring accurate and stable operation. The bottom electrode 202 is the positive electrode and the top electrode 202 is the negative electrode. The clear polarity design of the electrodes 202 ensures that the pulse current flows in the correct direction in the voltage regulator 203 after connection, ensuring that the needle tip generates the expected radio frequency signal and heat during radio frequency testing and thermocoagulation operations, avoiding equipment failure or tissue damage due to incorrect polarity. The inside of the blocking part 5 is a smooth, damage-resistant blunt tip. The smooth, damage-resistant blunt tip of the blocking part 5 can avoid sharp cutting damage to the nerve when releasing ligaments, allowing for safe and effective treatment of ligaments. The outside of the needle 6 is rounded. The rounded outside of the needle 6 can reduce tearing and damage to the tissue during auxiliary operations such as tissue picking or positioning, allowing it to move relatively smoothly in the tissue, helping doctors to accurately perform nerve compression release surgery.

[0046] Specifically, the curved design of the handheld groove 3 conforms to ergonomic principles, allowing the doctor's hand to fit better in the groove, improving grip comfort. The anti-slip design prevents the doctor's hand from slipping during operation. After the pulse current is connected, the presence of positive and negative poles allows the current to flow correctly in components such as the voltage regulator 203 in a preset direction, thereby achieving effective regulation of the pulse current. The smooth, anti-damage blunt tip inside the blocking part 5 can avoid sharp damage to nerves and other important tissues during ligament release operations. The needle 6 has a smooth external design, which reduces tissue tearing and damage when assisting in operations.

[0047] Working principle: The needle shaft 1 serves as the main structure of the entire instrument, providing connection and support. The hand-held groove 3 on the left end facilitates the doctor's hand operation, allowing for a stable grip on the cannula during surgery, ensuring accuracy and stability. When medication is needed to release adhesions, the syringe mounting slot 8 on the left side of the needle handle 7 can be used to install the syringe. The medication is then injected into the target site through the channel inside the needle shaft 1. The medication acts on the adhered tissue, gradually loosening it and relieving nerve entrapment symptoms. When using the concave design of the needle tip to release ligaments, the concave part 5 at the right end of the needle shaft 1 provides internal support. The design allows for appropriate force to be applied to ligaments under specific operating conditions. The needle 6, located on the front and back sides of the right end of the needle bar 1, can gently pluck or locate local tissues. Working in conjunction with the blocking part 5, it can loosen the ligaments. The presence of the needle groove 4 also helps to better control the direction and force of the needle tip during the operation, enabling doctors to more accurately apply the blocking part 5 to the ligaments that need to be loosened. By using the concave structure of the blocking part 5 to perform appropriate compression and pushing operations on the ligaments, the ligaments that are compressing the nerves can be gradually loosened, restoring the normal activity space of the nerves and thus relieving the discomfort symptoms caused by nerve compression.

[0048] Furthermore, the inlet 201, serving as an access channel for external pulse current, is located on the front right end of the needle handle 7, facilitating connection to relevant pulse current generating devices. When the pulse current enters the inlet 201, the electrodes 202 fixedly connected to its upper and lower inner walls will contact the pulse current and conduct current. These two electrodes 202 transmit the received current to the voltage regulator 203 fixedly installed inside the needle handle 7. The voltage regulator 203 can adjust the input pulse current voltage according to surgical needs to ensure that the pulse current voltage output to the needle bar 1 is within a suitable range, meeting the different requirements of radiofrequency testing and thermocoagulation operations. The current regulated by the voltage regulator 203 is transmitted to the middle of the left end of the needle bar 1 through the conductive rod 204 fixedly connected to its right end, thereby enabling the pulse current to be conducted inside the needle bar 1. An insulating layer 205 is provided on the outer left side of the rod 1. This ensures the directional conduction of the pulse current inside the needle rod 1 and avoids unnecessary damage to the surrounding tissue caused by current leakage. During radiofrequency testing, the appropriate pulse current is conducted to the needle tip through the needle rod 1. The doctor can obtain relevant information about the nerve and surrounding tissues, such as the relationship between the nerve location and the surrounding tissues, by detecting the response of the tissue around the needle tip to radiofrequency. When performing thermocoagulation, the voltage regulator 203 adjusts the pulse current voltage to a level that can generate sufficient heat at the needle tip. The current is conducted to the needle tip through the conductive rod 204 and the needle rod 1. The heat generated at the needle tip is used to coagulate specific tissues. Thermocoagulation is performed on some diseased or abnormal nerve tissues to achieve the purpose of relieving nerve compression and eliminating the influence of diseased tissues.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nerve compression release radiofrequency cannula needle comprising a needle shaft (1), characterized in that: The left end of the needle rod (1) is fixedly connected with a handheld groove (3), the outer wall top right end of the needle rod (1) is provided with a needle groove (4), the right end of the needle rod (1) is provided with a blocking part (5), the inside of the blocking part (5) is designed in a concave shape, the right end of the needle rod (1) is provided with a lancet (6) on the front and back sides, the left end of the handheld groove (3) is fixedly connected with a needle handle (7), the left side of the needle handle (7) is provided with a syringe mounting groove (8), and the front side of the needle handle (7) is provided with a pulse flow adjusting mechanism (2).

2. A radio frequency cannula needle for nerve root decompression according to claim 1, wherein: The pulse flow adjusting mechanism (2) comprises an inlet (201), the inlet (201) is provided on the front right end of the needle handle (7), the inner walls of the inlet (201) are fixedly connected with electrodes (202) at the upper and lower ends, the inside of the needle handle (7) is fixedly installed with a voltage regulator (203), the two electrodes (202) are electrically connected with the voltage regulator (203), the right end of the voltage regulator (203) is fixedly connected with a conductive rod (204), the right end of the conductive rod (204) is fixedly connected to the left end of the needle rod (1), and the left side of the outside of the needle rod (1) is provided with an insulating layer (205).

3. A radio frequency cannula needle for nerve root decompression according to claim 1, wherein: The inside of the syringe mounting groove (8) is designed in a tapered shape, and the inside of the syringe mounting groove (8) is fixedly connected with a limiting strip (9) at equal intervals.

4. A radio frequency cannula needle for nerve root decompression according to claim 1, wherein: The right side of the outside of the handheld groove (3) is fixedly connected with a mounting seat (10), and the outer wall of the mounting seat (10) is designed in multiple different sizes.

5. A radio frequency cannula needle for nerve root decompression according to claim 1, wherein: The outside of the needle rod (1) is provided with a hollow sleeve (11), and the inside left end of the hollow sleeve (11) is clamped to the outer wall of the mounting seat (10).

6. A radio frequency cannula needle for nerve root decompression according to claim 1, wherein: The outer wall of the handheld groove (3) is designed in a curved surface, and the outer wall is designed in an anti-skid manner.

7. A radio frequency cannula needle for nerve root decompression according to claim 2, wherein: The bottom electrode (202) is a positive electrode, and the top electrode (202) is a negative electrode.

8. A radio frequency cannula needle for nerve root decompression according to claim 1, wherein: The inside of the blocking part (5) is a smooth damage-preventing blunt head, and the outside of the lancet (6) is designed in a smooth manner.

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