A radiofrequency needle with PTFE coating

Abstract

The utility model belongs to the field of radio frequency needles, and specifically relates to a radio frequency needle with a PTFE coating, including a sleeve, the inner cavity of the sleeve clamps a movable inner tube, and the outer walls of the two are molded with a PTFE coating; the radio frequency mechanism includes a radio frequency end seat arranged on the inner tube, the lower part of the radio frequency end seat is connected to a radio frequency cable that penetrates the inner tube, and the upper part is provided with matching radio frequency needles A and B; the unfolding mechanism includes an axis frame arranged inside the inner tube, and a coil spring shaft is clamped inside the axis frame. During radio frequency treatment, after radio frequency needles A and B are pushed out of the front end of the sleeve, the sides of radio frequency needles A and B are not limited by the sleeve, and the coil spring in the coil spring shaft is in an unfolded state, and the radio frequency needle frame is controlled by the coil spring to unfold outward, and the heat release surface of radio frequency needles A and B increases after unfolding, and radio frequency treatment is performed on the radio frequency part. Increasing the heat release surface can reduce the activity amplitude of the radio frequency needle and reduce damage to the tissue.

Description

Technical Field

[0001] The utility model relates to the field of radio frequency needles, in particular to a radio frequency needle with a PTFE coating. Background Art

[0002] Radiofrequency acupuncture is a relatively common treatment method that operates on the principle of radiofrequency and has a variety of functions and applications.

[0003] PTFE is a widely used fluorinated polymer known for its non-stick, high temperature resistance, chemical corrosion resistance and other properties. In the application of radio frequency needles, PTFE coating mainly plays the following roles:

[0004] Insulation performance: PTFE has excellent insulation properties, which can prevent the radiofrequency needle from generating current during operation and ensure the safety of treatment.

[0005] Anti-stickiness: The non-stickiness of PTFE enables it to form a protective film on the radiofrequency needle to prevent tissue adhesion and damage, while making the radiofrequency needle smoother during operation.

[0006] High temperature resistance: PTFE can work stably at high temperatures, meeting the high temperature requirements generated by the radio frequency needle during operation and preventing the coating from falling off or deforming.

[0007] The prior art has the following problems:

[0008] The tip of the radiofrequency needle is mostly a cone-shaped structure, and the range of heat release is directly related to the volume of the needle tip, which makes it difficult to contact all the parts to be treated during the operation. The radiofrequency needle needs to be moved frequently, causing greater damage to the limb tissue. Utility Model Content

[0009] (I) Purpose of the utility model

[0010] In order to solve the technical problems existing in the background technology, the utility model proposes a radio frequency needle with a PTFE coating, which has the characteristics of expandable needle tip volume and increased heat release contact area.

[0011] (II) Technical solution

[0012] In order to solve the above technical problems, the utility model provides a radiofrequency needle with a PTFE coating, comprising a sleeve, the inner cavity of the sleeve clamps a movable inner tube, and the outer walls of both are molded with a PTFE coating;

[0013] The radio frequency mechanism includes a radio frequency end seat arranged on the inner tube, the lower part of the radio frequency end seat is connected with a radio frequency cable penetrating the inner tube, and the upper part is provided with matching radio frequency needles A and B, and the outer walls of the two are molded with PTFE coating;

[0014] The unfolding mechanism includes an axis frame arranged inside the inner tube, the axis frame clamps a coil spring shaft, the coil spring shaft has a coil spring built in, the two ends of the coil spring are respectively connected to the A radio frequency needle frame and the B radio frequency needle frame, the A radio frequency needle frame is fixedly connected to the A radio frequency needle, and the B radio frequency needle frame is fixedly connected to the B radio frequency needle.

[0015] Preferably, the A radio frequency needle holder and the B radio frequency needle holder are controlled by the coil spring to be compressed or expanded, and the A radio frequency needle and the B radio frequency needle move synchronously with the A radio frequency needle holder and the B radio frequency needle holder respectively.

[0016] Preferably, one end of the coil spring is formed with an A connecting rod connected to the A radio frequency needle holder, and the other end is formed with a B connecting rod connected to the B radio frequency needle holder.

[0017] Preferably, the deployment angle between the A radio frequency needle and the B radio frequency needle is 60°.

[0018] Preferably, the radio frequency cable is a bendable structure, and a clamping gap is left between the radio frequency cable and the inner tube.

[0019] Preferably, a plurality of cooling tubes are arranged at intervals in the clamping gap between the radio frequency cable and the inner tube.

[0020] The above-mentioned technical scheme of the utility model has the following beneficial technical effects: when performing radio frequency treatment, after radio frequency needle A and radio frequency needle B are pushed out of the front end of the sleeve, the sides of radio frequency needle A and radio frequency needle B are not limited by the sleeve, the coil spring in the coil spring shaft is in an unfolded state, and the radio frequency needle holder is controlled by the coil spring to unfold outward. After radio frequency needle A and radio frequency needle B are unfolded, the heat release surface increases, and radio frequency treatment is performed on the radio frequency part. Increasing the heat release surface can reduce the activity amplitude of the radio frequency needle and reduce damage to the tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the unfolded structure of the radio frequency needle of the utility model;

[0024] Figure 4 It is a schematic diagram of the coil spring structure of the utility model.

[0025] Reference numerals:

[0026] 1. Sleeve; 2. Inner tube; 31. RF terminal; 32. RF cable; 33. RF needle A; 34. RF needle B; 41. Axle frame; 42. Coil spring shaft; 421. Coil spring; 422. Connecting rod A; 423. Connecting rod B; 43. RF needle holder A; 44. RF needle holder B; 5. Cooling tube. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0028] like Figure 1-4 As shown, the utility model provides a radiofrequency needle with a PTFE coating, comprising a sleeve 1, the inner cavity of the sleeve 1 clamps a movable inner tube 2, and the outer walls of the two are molded with a PTFE coating;

[0029] The radio frequency mechanism includes a radio frequency end seat 31 arranged on the inner tube 2, the lower part of the radio frequency end seat 31 is connected to a radio frequency cable 32 that penetrates the inner tube 2, and the upper part is provided with a matching radio frequency needle A 33 and radio frequency needle B 34, and the outer walls of both are molded with a PTFE coating;

[0030] The unfolding mechanism includes an axis frame 41 arranged inside the inner tube 2, the axis frame 41 clamps a coil spring shaft 42, the coil spring shaft 42 has a built-in coil spring 421, the two ends of the coil spring 421 are respectively connected to the A radio frequency needle frame 43 and the B radio frequency needle frame 44, the A radio frequency needle frame 43 and the A radio frequency needle 33 are fixedly connected, and the B radio frequency needle frame 44 and the B radio frequency needle 34 are fixedly connected.

[0031] It should be noted that: since one end of the coil spring 421 is formed with an A connecting rod 422 connected to the A RF needle holder 43, and the other end is formed with a B connecting rod 423 connected to the B RF needle holder 44, the A RF needle holder 43 and the B RF needle holder 44 are controlled by the coil spring 421 to be compressed or expanded, and the A RF needle 33 and the B RF needle 34 move synchronously with the A RF needle holder 43 and the B RF needle holder 44 respectively, thereby realizing the compression or expansion of the A RF needle 33 and the B RF needle 34.

[0032] In this embodiment, when performing radiofrequency treatment, the inner tube 2 is pushed along the sleeve 1. During the pushing process, the outside of the A radiofrequency needle 33 and the B radiofrequency needle 34 are covered and limited by the sleeve 1, and the coil spring 421 in the coil spring shaft 42 is in a compressed state, and the A radiofrequency needle 33 and the B radiofrequency needle 34 are not unfolded;

[0033] When the A RF needle 33 and the B RF needle 34 are pushed out of the front end of the sleeve 1, the sides of the A RF needle 33 and the B RF needle 34 are no longer limited by the sleeve 1, and the coil spring 421 in the coil spring shaft 42 is in an expanded state. The A RF needle holder 43 and the B RF needle holder 44 are controlled by the coil spring 421 to expand outward. After the A RF needle 33 and the B RF needle are expanded, the heat release surface increases, and the RF end seat 31 is heated by the electricity transmitted by the RF cable 32. The RF part is treated with RF by the expanded A RF needle 33 and B RF needle 34. Increasing the heat release surface can reduce the activity amplitude of the RF needle and reduce damage to the tissue.

[0034] It should be added that the deployment angle of the A radio frequency needle 33 and the B radio frequency needle 34 is 60° to prevent the deployment angle from being too large and piercing the tissue.

[0035] In order to facilitate the movement of the radio frequency cable 32 in the sleeve 1 , further, the radio frequency cable 32 is a bendable structure, and a clamping gap is left between the radio frequency cable 32 and the inner tube 2 .

[0036] In order to facilitate the cooling of the inside of the RF needle, further, a plurality of cooling tubes 5 are arranged at intervals in the clamping gap between the RF cable 32 and the inner tube 2, and the cooling liquid is transmitted through the cooling tubes 5 to absorb the heat of the inner tube 2 and the sleeve 1 in the inner cavity.

[0037] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A radiofrequency needle with a PTFE coating, characterized in that: It comprises a sleeve (1), wherein the inner cavity of the sleeve (1) clamps a movable inner tube (2), and the outer walls of both are molded with a PTFE coating; The radio frequency mechanism comprises a radio frequency end seat (31) arranged on the inner tube (2), the lower part of the radio frequency end seat (31) is connected to a radio frequency cable (32) penetrating the inner tube (2), and the upper part is provided with a matching radio frequency needle A (33) and radio frequency needle B (34), and the outer walls of the two are molded with a PTFE coating; The unfolding mechanism comprises an axis frame (41) arranged inside the inner tube (2), the axis frame (41) clamps a coil spring shaft (42), the coil spring shaft (42) has a coil spring (421) built in, the two ends of the coil spring (421) are respectively connected to an A radio frequency needle frame (43) and a B radio frequency needle frame (44), the A radio frequency needle frame (43) and the A radio frequency needle (33) are fixedly connected, and the B radio frequency needle frame (44) and the B radio frequency needle (34) are fixedly connected.

2. The radio frequency needle with PTFE coating according to claim 1, characterized in that: The A radio frequency needle holder (43) and the B radio frequency needle holder (44) are controlled by the coil spring (421) to be compressed or expanded, and the A radio frequency needle (33) and the B radio frequency needle (34) move synchronously with the A radio frequency needle holder (43) and the B radio frequency needle holder (44) respectively.

3. The radio frequency needle with PTFE coating according to claim 1, characterized in that: One end of the coil spring (421) is formed with an A connecting rod (422) connected to the A radio frequency needle frame (43), and the other end is formed with a B connecting rod (423) connected to the B radio frequency needle frame (44).

4. The radio frequency needle with PTFE coating according to claim 1, characterized in that: The deployment angle between the A radio frequency needle (33) and the B radio frequency needle (34) is 60°.

5. The radio frequency needle with PTFE coating according to claim 1, characterized in that: The radio frequency cable (32) is a bendable structure, and a clamping gap is left between the radio frequency cable and the inner tube (2).

6. The radio frequency needle with PTFE coating according to claim 5, characterized in that: A plurality of cooling tubes (5) are arranged at intervals in the clamping gap between the radio frequency cable (32) and the inner tube (2).

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