Multifunctional radio frequency needle

Abstract

The utility model relates to the technical field of radio frequency needles, in particular to a multifunctional radio frequency needle, which comprises a radio frequency needle main body, the radio frequency needle main body comprises a needle seat and a needle tube, the needle tube is arranged at the end part of the needle seat and is integrated with the needle seat, the end part of the needle tube is provided with a bent needle tip, the needle tip is a blunt needle, and the outer surface of the needle tube is provided with scale marks; and the connecting assembly is used for connecting the radio frequency needle main body with a radio frequency operating handle on the radio frequency therapeutic apparatus. According to the utility model, the scale marks are arranged on the needle tube, and the metallic titanium is used as a material for preparing the needle tube, so that on one hand, personnel can accurately control the length of the needle tube puncturing into the body of a patient by observing the scale marks on the surface of the needle tube in the actual use process of the radio frequency needle; the hardness of the needle tube is twice that of stainless steel, so that the overall hardness and strength of the needle tube are effectively improved, the needle tube is not prone to deformation and bending, and practicability is high.

Description

Technical Field

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

[0002] Radiofrequency ablation (RFA) technology primarily relies on a radiofrequency device with both ablation and cutting capabilities. Its therapeutic mechanism is primarily thermal. When RF current flows through human tissue, the rapid changes in the electromagnetic field cause polarized water molecules within the tissue to move at high speeds, generating heat (i.e., endogenous heating). This causes water inside and outside the cells to evaporate, dry out, shrink, and detach, leading to aseptic necrosis, thus achieving the therapeutic goal. The RF needle is an indispensable tool in RF ablation.

[0003] In the prior art, a Chinese patent with the announcement number CN26576951U discloses a radiofrequency needle, which adopts a scheme of "including a needle body, an inner electrode needle embedded in the hollow part of the needle body that can perform tissue ablation, nerve stimulation, electrification, and positioning, a detachable connection between the inner needle and the needle body, the outer surface of one end of the needle body is sprayed or plated with an insulating layer that prevents current from flowing to the surrounding tissue, and a conductive area is provided on the other end of the needle body to pierce the tissue, and the shape of the conductive area is bent or straight or rounded blunt head". This scheme has extremely small radio frequency resistance, reduces surgical trauma, alleviates patient pain, shortens treatment time, and has no allergic reaction to the human body, no pain, and no leakage. It uses a method that can treat the curved part of the lesion, so that there is no blind spot in the treatment, and solves the problem that the straight needle cannot reach the obstructed radiofrequency site in the blind spot of needle insertion. The inner needle has an ultrasonic positioning function, which can accurately and multi-angle locate the lesion and enhance the imaging effect of the ultrasonic image during treatment. It has a novel design and is a good innovative solution with great market promotion prospects.

[0004] However, the above solution still has some shortcomings. For example, during actual use, the surface of the radio frequency needle lacks corresponding scales, which makes it impossible for personnel to accurately control the depth of radio frequency needle puncture. At the same time, the needle tube material of the radio frequency needles currently on the market is ordinary medical stainless steel, which leads to its low hardness during actual use. The needle tube is prone to bending and deformation during transportation or use, and affects the feel of personnel during puncture and normal puncture.

[0005] In view of this, the utility model proposes a multifunctional radio frequency needle. Utility Model Content

[0006] The purpose of the present utility model is to provide a multifunctional radiofrequency needle to solve the problems raised in the above background technology.

[0007] A multifunctional radiofrequency needle, comprising: a radiofrequency needle body, the radiofrequency needle body including a needle base, and a needle tube provided at the end of the needle base and integrally structured with the needle base, the end of the needle tube being provided with a curved needle tip, the needle tip being a blunt needle, and a scale line being provided on the outer surface of the needle tube; a connection assembly for connecting the radiofrequency needle body to a radiofrequency operation handle on a radiofrequency therapeutic apparatus, the connection assembly including a mounting cylinder provided on the outer surface of the needle base and fixedly connected to the radiofrequency operation handle, and an insertion cylinder being rotatably provided on the inner wall of the mounting cylinder, the needle base being inserted and fixed inside the insertion cylinder, the connection assembly further including a connection ring fixedly provided at the end of the insertion cylinder, and a small motor fixedly provided on the inner wall of the mounting cylinder for driving the insertion cylinder to rotate.

[0008] Preferably, the length of the needle tube is 15 cm, and the length of the exposed needle tip is 0.5 cm.

[0009] Preferably, the material of the needle tube is titanium metal.

[0010] Preferably, a plurality of spherical rotation grooves are circumferentially arrayed on the outer ring surface of the insertion cylinder, and a limiting metal ball is rotatably provided on the inner wall of the spherical rotation groove.

[0011] Furthermore, an annular groove is provided on the inner ring surface of the mounting cylinder, and a plurality of limiting metal balls are all in rolling connection with the inner wall of the annular groove.

[0012] Preferably, a driving gear is fixedly provided at the output end of the small motor, and an annular external gear ring meshing with the driving gear is fixedly provided on the outer ring surface of the connection ring.

[0013] Preferably, an installation groove is provided on the front surface of the mounting cylinder, and a button switch for controlling the small motor is provided on the inner wall of the installation groove.

[0014] Preferably, a conductor electrically connected to the needle base is provided on the inner bottom wall of the insertion cylinder, and an electric slip ring electrically connected to the conductor is embedded on the inner wall of the mounting cylinder.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By providing a scale line on the needle tube and using titanium metal as the material for preparing the needle tube, on the one hand, during the actual use of this radiofrequency needle, personnel can accurately control the length of the radiofrequency of the needle tube entering the patient's body according to the scale line observed on the surface of the needle tube. On the other hand, compared with stainless steel, the hardness of titanium metal is twice that of stainless steel, thereby effectively improving the overall hardness and strength of the needle tube, making it not easy to deform and bend, and effectively improving the feel of personnel during radiofrequency, with relatively strong practicability.

[0017] 2. The utility model enables the radiofrequency needle to start a small motor through a button switch during the actual radiofrequency process by setting a connection component. The rotation of the small motor drives the rotation of the driving gear. The rotation of the driving gear drives the connection ring and the insertion cylinder to rotate under the action of the annular external tooth ring, thereby driving the rotation of the radiofrequency needle body. Furthermore, during the radiofrequency process, the radiofrequency needle can realize the function of self-rotation, increasing the action area of radiofrequency and the treatment area. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural schematic diagram at A in it;

[0020] Figure 3 It is a sectional structural schematic diagram of the installation cylinder of the utility model;

[0021] Figure 4 For the utility model Figure 3 The enlarged structural schematic diagram at B in it.

[0022] In the figure: 1. Radiofrequency needle body; 11. Needle base; 12. Needle tube; 13. Needle tip; 14. Scale line; 2. Connection component; 21. Installation cylinder; 22. Insertion cylinder; 23. Connection ring; 24. Small motor; 25. Limiting metal ball; 26. Driving gear; 27. Annular external tooth ring; 28. Button switch; 29. Conductor; 20. Electric slip ring. Detailed Implementation Modes

[0023] Next, the technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with specific embodiments and the attached Figures 1-4 drawings.

[0024] Embodiment 1

[0025] According to the attached Figures 1-2 drawings, the embodiment of the utility model provides a multifunctional radiofrequency needle, including:

[0026] A radiofrequency needle body 1, the radiofrequency needle body 1 includes a needle base 11, and a needle tube 12 arranged at the end of the needle base 11 and integrally formed with the needle base 11. The material of the needle tube 12 is titanium metal, effectively improving the hardness of the needle tube 12 and making it not easy to bend.

[0027] The end of the needle tube 12 is provided with a bent needle tip 13. The needle tip 13 is a blunt needle. The length of the needle tube 12 is 15 cm, and the exposed length of the needle tip 13 is 0.5 cm.

[0028] The outer surface of the syringe 12 is provided with scale lines 14, which facilitate controlling the depth of the radiofrequency of the syringe 12 entering the human body by observing the scale lines 14.

[0029] In this embodiment, by providing scale lines 14 on the syringe 12 and using titanium metal as the material for preparing the syringe 12, on the one hand, during the actual use of the radiofrequency needle, personnel can accurately control the length of the radiofrequency of the syringe 12 entering the patient's body according to the scale lines 14 observed on the surface of the syringe 12. On the other hand, compared with stainless steel, the hardness of titanium metal is twice that of stainless steel, thus effectively improving the overall hardness and strength of the syringe 12, making the syringe 12 not prone to deformation and bending, and effectively improving the feel of personnel during puncture, with strong practicability.

[0030] Embodiment Two

[0031] On the basis of Embodiment One, referring to Figures 3-4 , and different from Embodiment One is that

[0032] A multi-functional radiofrequency needle further includes:

[0033] A connection component 2, which is used to connect the radiofrequency needle body 1 with the radiofrequency operation handle on the radiofrequency therapeutic instrument. The connection component 2 includes an installation cylinder 21 arranged on the outer surface of the needle base 11 and fixedly connected to the radiofrequency operation handle. The inner wall of the installation cylinder 21 is rotatably provided with a plug-in cylinder 22. The outer ring surface of the plug-in cylinder 22 is provided with a plurality of spherical rotation grooves in a circumferential array, and the inner wall of the spherical rotation groove is rotatably provided with a limiting metal ball 25, which facilitates the rotation of the plug-in cylinder 22 on the inner wall of the installation cylinder 21.

[0034] The inner ring surface of the installation cylinder 21 is provided with an annular groove, and a plurality of limiting metal balls 25 are all in rolling connection with the inner wall of the annular groove.

[0035] The needle base 11 is plugged and fixed inside the plug-in cylinder 22. The connection component 2 further includes a connection ring 23 fixed at the end of the plug-in cylinder 22, and a small motor 24 fixed on the inner wall of the installation cylinder 21 for driving the rotation of the plug-in cylinder 22.

[0036] The output end of the small motor 24 is fixedly provided with a driving gear 26, and the outer ring surface of the connection ring 23 is fixedly provided with an annular external tooth ring 27 meshing with the driving gear 26, which can drive the plug-in cylinder 22 to rotate at a reduced speed through the rotation of the small motor 24.

[0037] The front surface of the installation cylinder 21 is provided with an installation groove, and the inner wall of the installation groove is provided with a button switch 28 for controlling the small motor 24.

[0038] The inner bottom wall of the plug-in cylinder 22 is provided with a conductor 29 electrically connected to the needle base 11, and an electric slip ring 20 electrically connected to the conductor 29 is embedded in the inner wall of the installation cylinder 21.

[0039] In this embodiment, by providing the connecting component 2, during the actual radiofrequency process of the radiofrequency needle, the small motor 24 can be started through the button switch 28. The rotation of the small motor 24 drives the rotation of the driving gear 26. The rotation of the driving gear 26 drives the rotation of the connecting ring 23 and the insertion cylinder 22 under the action of the annular external gear ring 27, thereby driving the rotation of the radiofrequency needle body 1. Furthermore, during the radiofrequency process of the radiofrequency needle, the function of self-rotation can be realized. Rotating while performing radiofrequency can increase the action area of the radiofrequency, and thus increase the treatment area, with better effects.

[0040] Except for the technical features described in the specification, they are all well-known technologies to those skilled in the art.

[0041] In this utility model, "up", "down", "left", "right", "front", and "back" are all relative positions used for conveniently describing the positional relationship, and therefore cannot be understood as absolute positions to limit the protection scope.

[0042] The above content is only an example and description of the structure of this utility model. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as they do not deviate from the structure of the utility model or exceed the scope defined by this claim book, they should all fall within the protection scope of this utility model.

Claims

1. A multifunctional radiofrequency needle, characterized in that Comprising: A radiofrequency needle body (1), the radiofrequency needle body (1) includes a needle base (11), and a needle tube (12) provided at the end of the needle base (11) and integrally structured with the needle base (11). The end of the needle tube (12) is provided with a bent needle tip (13), the needle tip (13) is a blunt needle, and a scale line (14) is provided on the outer surface of the needle tube (12); A connection assembly (2) for connecting the radiofrequency needle body (1) to a radiofrequency operation handle on a radiofrequency therapeutic apparatus. The connection assembly (2) includes a mounting cylinder (21) provided on the outer surface of the needle base (11) and fixedly connected to the radiofrequency operation handle. The inner wall of the mounting cylinder (21) rotatably arranges a plug-in cylinder (22), the needle base (11) is plugged and fixed inside the plug-in cylinder (22). The connection assembly (2) further includes a connection ring (23) fixed at the end of the plug-in cylinder (22), and a small motor (24) fixed on the inner wall of the mounting cylinder (21) for driving the plug-in cylinder (22) to rotate.

2. The multifunctional radiofrequency needle according to claim 1, characterized in that: The length of the needle tube (12) is 15 cm, and the exposed length of the needle tip (13) is 0.5 cm.

3. A multifunctional radiofrequency needle according to claim 1, characterized in that: The material of the needle tube (12) is titanium metal.

4. A multifunctional radiofrequency needle according to claim 1, characterized in that: A plurality of spherical rotation grooves are circumferentially arranged on the outer ring surface of the plug-in cylinder (22), and a limiting metal ball (25) is rotatably arranged on the inner wall of the spherical rotation groove.

5. A multifunctional radiofrequency needle according to claim 4, characterized in that: An annular groove is provided on the inner ring surface of the mounting cylinder (21), and a plurality of limiting metal balls (25) are all in rolling connection with the inner wall of the annular groove.

6. A multifunctional radiofrequency needle according to claim 1, characterized in that: A driving gear (26) is fixed to the output end of the small motor (24), and an annular external gear ring (27) meshing with the driving gear (26) is fixed to the outer ring surface of the connection ring (23).

7. A multifunctional radiofrequency needle according to claim 1, characterized in that: An installation groove is provided on the front surface of the mounting cylinder (21), and a button switch (28) for controlling the small motor (24) is provided on the inner wall of the installation groove.

8. A multifunctional radiofrequency needle according to claim 1, characterized in that: A conductor (29) electrically connected to the needle base (11) is provided on the inner bottom wall of the plug-in cylinder (22), and an electric slip ring (20) electrically connected to the conductor (29) is embedded in the inner wall of the mounting cylinder (21).

Images