Radio frequency ablation device

Abstract

The invention is suitable for the technical field of medical instruments, and provides a radiofrequency ablation device which comprises a shell and a host. The plurality of round holes are formed in one side of the shell; the partition plate is fixedly arranged on the inner wall of the shell; the plurality of radiofrequency ablation mechanisms are mounted on the shell and are used for performing radiofrequency ablation on a focus of a patient; the plurality of position adjusting mechanisms are mounted on one side of the partition plate and are used for adjusting the relative positions of the plurality of radiofrequency ablation mechanisms. According to the radiofrequency ablation device, radiofrequency ablation can be conducted on the focus of a patient, the relative positions of the multiple radiofrequency needles can be adjusted, and the radiofrequency ablation device can be suitable for the focus in an irregular shape.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a radiofrequency ablation device. Background Art

[0002] Radiofrequency ablation is widely used to treat malignant tumors in the liver, kidneys, soft tissues and other parts of the body. Its efficacy for some small lesions is comparable to that of surgery.

[0003] The positions of the multiple radiofrequency needles in the existing multi-needle radiofrequency ablation device are relatively fixed, and the relative positions of the multiple radiofrequency needles cannot be adjusted. Therefore, the device cannot be applied to lesions with irregular shapes. Summary of the Invention

[0004] The present invention provides a radiofrequency ablation device, aiming to solve the problem raised in the above background art that the existing radiofrequency ablation device cannot adjust the relative positions of multiple radiofrequency needles and cannot be applied to lesions with irregular shapes.

[0005] To solve the above problems, the present invention is implemented as follows: a radiofrequency ablation device includes: a shell and a main unit; a plurality of circular holes opened on one side of the shell; a partition fixedly installed on the inner wall of the shell; a plurality of radiofrequency ablation mechanisms installed on the shell, the plurality of radiofrequency ablation mechanisms being used to perform radiofrequency ablation on the patient's lesions; and a plurality of position adjustment mechanisms installed on one side of the partition, the plurality of position adjustment mechanisms being used to adjust the relative positions of the plurality of radiofrequency ablation mechanisms.

[0006] Preferably, the radiofrequency ablation mechanism; a sliding sleeve fixedly mounted on one side of the partition; a threaded sleeve slidably mounted on the inner wall of the sliding sleeve; an extension tube fixedly mounted at one end of the threaded sleeve; and a radiofrequency needle fixedly mounted at one end of the extension tube.

[0007] Preferably, an extension hole is provided on the extension tube, a wire is provided inside the extension tube, the wire is connected to the radio frequency needle, and one end of the wire extends to the outside of the shell.

[0008] Preferably, the position adjustment mechanism includes: a micro motor fixedly mounted on the inner wall of the sliding sleeve; a rotating rod fixedly mounted on the output shaft of the micro motor and extending to the inside of the threaded sleeve; and a threaded block fixedly mounted on one end of the rotating rod and threadedly connected to the inner wall of the threaded sleeve.

[0009] Preferably, a plurality of limiting grooves are provided on the inner wall of the sliding sleeve, a plurality of limiting blocks are fixedly mounted on the threaded sleeve, and the plurality of limiting blocks are respectively slidably connected to the inner walls on both sides of the plurality of limiting grooves.

[0010] Preferably, the host is equipped with a line collection mechanism, which includes: a line collection box fixedly installed on the host; a rotating shaft rotatably installed on the inner wall of the line collection box; a plurality of horizontal plates rotatably sleeved on the rotating shaft and fixedly connected to the inner wall of the line collection box; a plurality of wire drums fixedly sleeved on the rotating shaft and respectively connected to the plurality of the wires; a plurality of conductive slip rings fixedly sleeved on the rotating shaft and respectively connected to the plurality of the wires; a plurality of conductive slip rings sleeved on the rotating shaft and respectively fixedly connected to the plurality of horizontal plates, the plurality of conductive slip rings being respectively connected to the plurality of the wires; a plurality of connecting cables respectively mounted on the plurality of conductive slip rings and connected to the host; and a driving mechanism mounted on the inner wall of the line collection box.

[0011] Preferably, the driving mechanism includes: a servo motor fixedly mounted on the inner wall of the junction box and provided with a driving gear; and a driven gear fixedly sleeved on the rotating shaft and meshing with the driving gear.

[0012] Preferably, a plurality of through openings are opened on one side of the junction box, and two guide groove wheels are rotatably installed on each of the plurality of through openings, and the plurality of guide groove wheels are respectively slidably connected to the plurality of wires.

[0013] Preferably, the fixed sleeve on the shell is provided with an annular plate, the sliding sleeve on the shell is provided with a protective cover, and the protective cover is provided with a slot.

[0014] Preferably, a locking mechanism for locking the protective cover is installed on the shell, and the locking mechanism includes: a vertical plate fixedly installed on the shell; a horizontal bar fixedly installed on the vertical plate; an L-shaped card plate slidably mounted on the horizontal bar; a card block fixedly mounted on the L-shaped card plate and adapted to the card slot; a torsion spring slidably mounted on the horizontal bar, and the two ends of the torsion spring are respectively fixedly connected to the L-shaped card plate and the horizontal bar.

[0015] Compared with related technologies, the radiofrequency ablation device provided by the present invention has the following beneficial effects: Compared with the existing technology, the radiofrequency ablation device provided in this solution includes a shell and a main unit, wherein a plurality of circular holes are opened on one side of the shell, so that a plurality of extension tubes extend to the outside of the shell, and a partition is fixedly installed on the inner wall of the shell for separating and supporting the internal components. A plurality of radiofrequency ablation mechanisms are installed on the device, and these mechanisms act together on the patient's lesions to achieve radiofrequency ablation treatment. A plurality of position adjustment mechanisms are set on one side of the partition, which can flexibly adjust the relative positions of the plurality of radiofrequency ablation mechanisms to ensure that the plurality of radiofrequency ablation mechanisms can perform radiofrequency ablation on lesions with irregular shapes. This design improves the flexibility and treatment effect of radiofrequency ablation, provides patients with a more personalized treatment plan, and ensures the convenience and practicality of the operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a radiofrequency ablation device provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the three-dimensional assembly structure of the sliding sleeve, threaded sleeve, extension tube and radiofrequency needle; Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG; Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part B shown in FIG; Figure 5 for Figure 1 Schematic diagram of the enlarged structure of part C shown; Figure 6 for Figure 3 An enlarged schematic diagram of the structure of portion D is shown; Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure of the middle protective cover.

[0017] Figure numerals: 1. shell; 2. host; 3. round hole; 4. partition; 5. sliding sleeve; 6. threaded sleeve; 7. extension tube; 8. radio frequency needle; 9. extension hole; 10. wire; 11. micro motor; 12. rotating rod; 13. threaded block; 14. limit groove; 15. limit block; 16. junction box; 17. rotating shaft; 18. horizontal plate; 19. wire drum; 20. conductive slip ring; 21. connecting cable; 22. through-hole; 23. guide groove wheel; 24. servo motor; 25. driving gear; 26. driven gear; 27. annular plate; 28. protective cover; 29. ​​slot; 30. vertical plate; 31. horizontal bar; 32. L-shaped card plate; 33. card block; 34. torsion spring. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the description of the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0019] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The embodiment of the present invention provides a radiofrequency ablation device, such as Figure 1-7 As shown, the radiofrequency ablation device includes: a shell 1 and a main unit 2; a plurality of circular holes 3 opened on one side of the shell 1; a partition 4 fixedly mounted on the inner wall of the shell 1; a plurality of radiofrequency ablation mechanisms mounted on the shell 1, the plurality of radiofrequency ablation mechanisms being used to perform radiofrequency ablation on the patient's lesions; and a plurality of position adjustment mechanisms mounted on one side of the partition 4, the plurality of position adjustment mechanisms being used to adjust the relative positions of the plurality of radiofrequency ablation mechanisms.

[0021] In this embodiment, the radiofrequency ablation device includes a shell 1 and a main body 2, wherein a plurality of circular holes 3 are opened on one side of the shell 1, so that a plurality of extension tubes 7 extend to the outside of the shell 1, and a partition 4 is fixedly installed on the inner wall of the shell 1 for separating and supporting internal components. A plurality of radiofrequency ablation mechanisms are installed on the device, and these mechanisms act together on the patient's lesions to achieve radiofrequency ablation treatment. A plurality of position adjustment mechanisms are set on one side of the partition 4, which can flexibly adjust the relative positions of the plurality of radiofrequency ablation mechanisms to ensure that the plurality of radiofrequency ablation mechanisms can perform radiofrequency ablation on lesions with irregular shapes. This design improves the flexibility and treatment effect of radiofrequency ablation, provides patients with a more personalized treatment plan, and ensures the convenience and practicality of the operation of the device.

[0022] In a further preferred embodiment of the present invention, the radiofrequency ablation mechanism; a sliding sleeve 5 fixedly mounted on one side of the partition 4; a threaded sleeve 6 slidably mounted on the inner wall of the sliding sleeve 5; an extension tube 7 fixedly mounted at one end of the threaded sleeve 6; and a radiofrequency needle 8 fixedly mounted at one end of the extension tube 7.

[0023] In this embodiment, the radiofrequency ablation mechanism specifically includes a sliding sleeve 5 fixedly mounted on one side of the partition 4, a threaded sleeve 6 slidably mounted on the inner wall of the sliding sleeve 5, an extension tube 7 fixedly mounted on one end of the threaded sleeve 6, and a radiofrequency needle 8 fixedly mounted on one end of the extension tube 7; the sliding sleeve 5 provides a sliding track for the threaded sleeve 6, and the threaded sleeve 6 can slide along the inner wall of the sliding sleeve 5, thereby driving the extension tube 7 and the radiofrequency needle 8 to move. This design enables the position of the radiofrequency needle 8 to be flexibly adjusted according to treatment needs. The extension tube 7 plays a connecting and extending role, ensuring that the radiofrequency needle 8 can accurately reach the lesion position, thereby realizing radiofrequency ablation treatment of the lesion, improving the accuracy and effectiveness of the treatment, and enhancing the practicality and adaptability of the device.

[0024] In a further preferred embodiment of the present invention, an extension hole 9 is provided on the extension tube 7 , a wire 10 is provided inside the extension tube 7 , the wire 10 is connected to the RF needle 8 , and one end of the wire 10 extends to the outside of the shell 1 .

[0025] In this embodiment, an extension hole 9 is opened on the extension tube 7, and a wire 10 is arranged inside the extension tube 7. The wire 10 is connected to the radio frequency needle 8 and one end of the wire 1 extends to the outside of the shell 1. The wire 10 can be extended to the outside of the extension tube 7 through the extension hole 9; the wire 10 is used to connect the radio frequency needle 8 to the host 1 to realize the transmission of radio frequency energy and the transmission of signals, ensuring that the radio frequency needle 8 can normally perform the radio frequency ablation function; the wire 10 extends to the outside of the shell 1, which is convenient for connection with the host 1, so that the entire device can work together to ensure the smooth progress of radio frequency ablation treatment, improve the integration and operability of the device, and is conducive to achieving efficient and safe radio frequency ablation treatment.

[0026] In a further preferred embodiment of the present invention, the position adjustment mechanism includes: a micro motor 11 fixedly mounted on the inner wall of the sliding sleeve 5; a rotating rod 12 fixedly mounted on the output shaft of the micro motor 11 and extending to the interior of the threaded sleeve 6; and a threaded block 13 fixedly mounted at one end of the rotating rod 12 and threadedly connected to the inner wall of the threaded sleeve 6.

[0027] In this embodiment, the position adjustment mechanism includes a micro motor 11 fixedly mounted on the inner wall of the sliding sleeve 5, a rotating rod 12 fixedly mounted on the output shaft of the micro motor 11 and extending to the interior of the threaded sleeve 6, and a threaded block 13 fixedly mounted on one end of the rotating rod 12 and threadedly connected to the inner wall of the threaded sleeve 6; when working, the micro motor 11 is started, and its output shaft drives the rotating rod 12 to rotate. Since the threaded block 13 is threadedly connected to the inner wall of the threaded sleeve 6, the rotation of the rotating rod 12 drives the threaded block 13 to move in the threaded sleeve 6, and then drives the threaded sleeve 6 to slide in the sliding sleeve 5, thereby adjusting the position of the extension tube 7 and the radiofrequency needle 8 connected to the threaded sleeve 6; this design enables the position of the radiofrequency needle 8 to be flexibly adjusted, thereby adjusting the relative positions of multiple radiofrequency needles 8, ensuring that multiple radiofrequency needles 8 can perform radiofrequency ablation on lesions with irregular shapes, improving the accuracy and effectiveness of radiofrequency ablation treatment, enhancing the degree of automation of the device and the convenience of operation, helping to improve the treatment effect and reduce the difficulty of operation.

[0028] In a further preferred embodiment of the present invention, a plurality of limiting grooves 14 are provided on the inner wall of the sliding sleeve 5 , and a plurality of limiting blocks 15 are fixedly mounted on the threaded sleeve 6 , and the plurality of limiting blocks 15 are respectively slidably connected to the inner walls on both sides of the plurality of limiting grooves 14 .

[0029] In this embodiment, a plurality of limiting grooves 14 are formed on the inner wall of the sliding sleeve 5, and a plurality of limiting blocks 15 are fixedly mounted on the threaded sleeve 6, and the plurality of limiting blocks 15 are respectively slidably connected to the inner walls on both sides of the plurality of limiting grooves 14. Through this design, when the position adjustment mechanism adjusts the movement of the threaded sleeve 6, the plurality of limiting blocks 15 slide on the inner walls of the plurality of limiting grooves 14, which can guide the threaded sleeve 6, ensuring that it moves stably along a straight line and avoiding deviation or shaking, thereby ensuring the accuracy of position adjustment of the extension tube 7 and the radiofrequency needle 8 connected to the threaded sleeve 6, so that the radiofrequency needle 8 can accurately reach the lesion position for radiofrequency ablation treatment, thereby improving the stability of the device and the reliability of treatment, and enhancing the overall performance of the device.

[0030] In a further preferred embodiment of the present invention, a line collection mechanism is installed on the host 2, and the line collection mechanism includes: a line collection box 16 fixedly installed on the host 2; a rotating shaft 17 rotatably installed on the inner wall of the line collection box 16; a plurality of horizontal plates 18 rotatably sleeved on the rotating shaft 17 and fixedly connected to the inner wall of the line collection box 16; a plurality of wire drums 19 fixedly sleeved on the rotating shaft 17 and respectively connected to the plurality of the wires 10; a plurality of conductive slip rings 20 fixedly sleeved on the rotating shaft 17 and respectively connected to the plurality of the wires 10; a plurality of conductive slip rings 20 sleeved on the rotating shaft 17 and respectively fixedly connected to the plurality of the horizontal plates 18, and the plurality of the conductive slip rings 20 are respectively connected to the plurality of the wires 10; a plurality of connecting cables 21 respectively mounted on the plurality of the conductive slip rings 20 and connected to the host 2; and a driving mechanism installed on the inner wall of the line collection box 16.

[0031] In this embodiment, the line collection mechanism includes a line collection box 16 fixedly mounted on the host 2; a rotating shaft 17 rotatably mounted on the inner wall of the line collection box 16; a plurality of horizontal plates 18 rotatably mounted on the rotating shaft 17 and fixedly connected to the inner wall of the line collection box 16; a plurality of wire drums 19 fixedly mounted on the rotating shaft 17 and respectively connected to a plurality of wires 10; a plurality of conductive slip rings 20 fixedly mounted on the rotating shaft 17 and respectively connected to a plurality of wires 10; a plurality of connecting cables 21 respectively mounted on the plurality of conductive slip rings 20 and connected to the host 2; and a driving mechanism mounted on the inner wall of the line collection box 16; when in use, the wires 10 is wound on the wire drum 19. When the position of the radiofrequency ablation mechanism is adjusted to cause the length of the wire 10 to change, the driving mechanism can drive the shaft 17 to rotate, driving the wire drum 19 to rotate, so as to realize the retraction and extension of the wire 10, and prevent the wire 10 from being entangled or too loose to affect the normal operation of the device; the setting of the conductive slip ring 20 makes it possible to maintain a stable electrical connection between the wire 10 and the host 2 during the rotation of the shaft 17 and the wire drum 19, and connect the conductive slip ring 20 to the host 2 through the connecting cable 21 to realize stable transmission of signals and electrical energy; the wire collection mechanism effectively solves the problem of storage and electrical connection of the wire 10, making the internal structure of the device The lines are more neat and orderly, which improves the reliability and stability of the device, facilitates maintenance and operation, and enhances the overall performance of the device. The driving mechanism includes a servo motor 24 fixedly mounted on the inner wall of the junction box 16 and having a driving gear 25, and a driven gear 26 fixedly sleeved on the rotating shaft 17 and meshing with the driving gear 25; when in use, when it is necessary to adjust the retraction and extension of the wire 10 to adapt to the position change of the radiofrequency ablation mechanism, the servo motor 24 is started, and its output shaft drives the driving gear 25 to rotate. Since the driving gear 25 is meshed with the driven gear 26, the rotation of the driving gear 25 drives the driven gear 26 to rotate. The gear 26 rotates, thereby driving the rotating shaft 17 to rotate, and the wire drum 19 on the rotating shaft 17 rotates accordingly, thereby realizing the retraction and extension of the wire 10; the driving mechanism can control the rotation of the rotating shaft 17 through gear transmission, thereby accurately adjusting the length of the wire 10, ensuring that the wire 10 is always in a suitable tensioning state, avoiding the wire 10 from being entangled, knotted or too loose to affect the normal operation of the device, thereby improving the stability and reliability of the device. At the same time, the servo motor 24 has the characteristics of fast response speed and high control accuracy, which facilitates the realization of automatic control of the retraction and extension of the wire 10, and improves the operation convenience and intelligence of the device.

[0032] In a further preferred embodiment of the present invention, the driving mechanism includes: a servo motor 24 fixedly mounted on the inner wall of the junction box 16 and having a driving gear 25 ; and a driven gear 26 fixedly sleeved on the rotating shaft 17 and meshing with the driving gear 25 .

[0033] In this embodiment, the line collection mechanism includes a line collection box 16 fixedly mounted on the host 2; a rotating shaft 17 rotatably mounted on the inner wall of the line collection box 16; a plurality of horizontal plates 18 rotatably mounted on the rotating shaft 17 and fixedly connected to the inner wall of the line collection box 16; a plurality of wire drums 19 fixedly mounted on the rotating shaft 17 and respectively connected to a plurality of wires 10; a plurality of conductive slip rings 20 fixedly mounted on the rotating shaft 17 and respectively connected to a plurality of wires 10; a plurality of connecting cables 21 respectively mounted on the plurality of conductive slip rings 20 and connected to the host 2; and a driving mechanism mounted on the inner wall of the line collection box 16; when in use, the wires 10 is wound on the wire drum 19. When the position of the radiofrequency ablation mechanism is adjusted to cause the length of the wire 10 to change, the driving mechanism can drive the shaft 17 to rotate, driving the wire drum 19 to rotate, so as to realize the retraction and extension of the wire 10, and prevent the wire 10 from being entangled or too loose to affect the normal operation of the device; the setting of the conductive slip ring 20 makes it possible to maintain a stable electrical connection between the wire 10 and the host 2 during the rotation of the shaft 17 and the wire drum 19, and connect the conductive slip ring 20 to the host 2 through the connecting cable 21 to realize stable transmission of signals and electrical energy; the wire collection mechanism effectively solves the problem of storage and electrical connection of the wire 10, making the internal structure of the device The lines are more neat and orderly, which improves the reliability and stability of the device, facilitates maintenance and operation, and enhances the overall performance of the device. The driving mechanism includes a servo motor 24 fixedly mounted on the inner wall of the junction box 16 and having a driving gear 25, and a driven gear 26 fixedly sleeved on the rotating shaft 17 and meshing with the driving gear 25; when in use, when it is necessary to adjust the retraction and extension of the wire 10 to adapt to the position change of the radiofrequency ablation mechanism, the servo motor 24 is started, and its output shaft drives the driving gear 25 to rotate. Since the driving gear 25 is meshed with the driven gear 26, the rotation of the driving gear 25 drives the driven gear 26 to rotate. The gear 26 rotates, thereby driving the rotating shaft 17 to rotate, and the wire drum 19 on the rotating shaft 17 rotates accordingly, thereby realizing the retraction and extension of the wire 10; the driving mechanism can control the rotation of the rotating shaft 17 through gear transmission, thereby accurately adjusting the length of the wire 10, ensuring that the wire 10 is always in a suitable tensioning state, avoiding the wire 10 from being entangled, knotted or too loose to affect the normal operation of the device, thereby improving the stability and reliability of the device. At the same time, the servo motor 24 has the characteristics of fast response speed and high control accuracy, which facilitates the realization of automatic control of the retraction and extension of the wire 10, and improves the operation convenience and intelligence of the device.

[0034] In a further preferred embodiment of the present invention, a plurality of through openings 22 are opened on one side of the junction box 16, and two guide groove wheels 23 are rotatably installed on the plurality of through openings 22, and the plurality of guide groove wheels 23 are respectively slidably connected to the plurality of wires 10.

[0035] In this embodiment, a plurality of through-openings 22 are provided on one side of the junction box 16, and two guide groove wheels 23 are rotatably installed on the plurality of through-openings 22, and the plurality of guide groove wheels 23 are respectively slidably connected with the plurality of wires 10; when in use, the wires 10 enter and exit the junction box 16 through the through-openings 22, and during this process, the wires 10 are in sliding contact with the guide groove wheels 23 rotatably installed on the through-openings 22; the design of the guide groove wheels 23 can, on the one hand, guide the wires 10, and guide the wires 10 to enter and exit the junction box 16 along a predetermined path, thereby avoiding deviation or jamming of the wires 10 at the through-openings 22; on the other hand, since the guide groove wheels 23 are rotatable, when the wires 10 move during the retraction and extension process, the guide groove wheels 23 will rotate accordingly, reducing the friction between the wires 10 and the edge of the through-openings 22, reducing the wear of the wires 10, extending the service life of the wires 10, and ensuring the stability of the signal and power transmission of the wires 10, thereby improving the reliability and service life of the entire device.

[0036] In a further preferred embodiment of the present invention, a ring plate 27 is fixedly provided on the housing 1 , a protective cover 28 is slidably provided on the housing 1 , and a slot 29 is provided on the protective cover 28 .

[0037] The protective cover 28 is provided with a locking mechanism, which is used to lock the protective cover 28. The plate 30 is fixedly mounted on the cross bar 31 of the vertical plate 30; the L-shaped card plate 32 is slidably mounted on the cross bar 31; the card block 33 is fixedly mounted on the L-shaped card plate 32 and is adapted to the card slot 29 on the protective cover 28; the torsion spring 34 is slidably mounted on the cross bar 31, and the two ends of the torsion spring 34 are respectively fixedly connected to the L-shaped card plate 32 and the cross bar 31; when the protective cover 28 slides to the appropriate position, under the elastic force of the torsion spring 34, the L-shaped card plate 32 will slide along the cross bar 31, driving the card block 33 to snap into the card slot 29 on the protective cover 28 9, thereby locking the protective cover 28, preventing the protective cover 28 from accidentally sliding during use of the device, and ensuring that the protective cover 28 can stably protect the internal components of the shell 1; when it is necessary to unlock the protective cover 28, it is only necessary to overcome the elastic force of the torsion spring 34 and slide the L-shaped card plate 32 in a direction away from the protective cover 28 to make the card block 33 fall out of the card slot 29; the locking mechanism has a simple structure and is easy to operate, and can reliably lock and unlock the protective cover 28, thereby improving the safety and convenience of use of the device.

[0038] In a further preferred embodiment of the present invention, a locking mechanism for locking the protective cover 28 is installed on the shell 1, and the locking mechanism includes: a vertical plate 30 fixedly installed on the shell 1; a horizontal bar 31 fixedly installed on the vertical plate 30; an L-shaped card plate 32 slidably mounted on the horizontal bar 31; a card block 33 fixedly mounted on the L-shaped card plate 32 and adapted to the card slot 29; and a torsion spring 34 slidably mounted on the horizontal bar 31, and the two ends of the torsion spring 34 are respectively fixedly connected to the L-shaped card plate 32 and the horizontal bar 31.

[0039] The protective cover 28 is provided with a locking mechanism, which is used to lock the protective cover 28. The plate 30 is fixedly mounted on the cross bar 31 of the vertical plate 30; the L-shaped card plate 32 is slidably mounted on the cross bar 31; the card block 33 is fixedly mounted on the L-shaped card plate 32 and is adapted to the card slot 29 on the protective cover 28; the torsion spring 34 is slidably mounted on the cross bar 31, and the two ends of the torsion spring 34 are respectively fixedly connected to the L-shaped card plate 32 and the cross bar 31; when the protective cover 28 slides to the appropriate position, under the elastic force of the torsion spring 34, the L-shaped card plate 32 will slide along the cross bar 31, driving the card block 33 to snap into the card slot 29 on the protective cover 28 9, thereby locking the protective cover 28, preventing the protective cover 28 from accidentally sliding during use of the device, and ensuring that the protective cover 28 can stably protect the internal components of the shell 1; when it is necessary to unlock the protective cover 28, it is only necessary to overcome the elastic force of the torsion spring 34 and slide the L-shaped card plate 32 in a direction away from the protective cover 28 to make the card block 33 fall out of the card slot 29; the locking mechanism has a simple structure and is easy to operate, and can reliably lock and unlock the protective cover 28, thereby improving the safety and convenience of use of the device.

[0040] In summary, compared with related technologies, the present device can not only perform radiofrequency ablation on the patient's lesions, but also adjust the relative positions of multiple radiofrequency needles, and is suitable for lesions with irregular shapes.

[0041] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope of protection of the present invention.

Claims

1. A radiofrequency ablation device, characterized in that: include: Housing (1) and host (2); A plurality of circular holes (3) are provided on one side of the housing (1); A partition (4) fixedly mounted on the inner wall of the housing (1); A plurality of radiofrequency ablation mechanisms mounted on the housing (1), the plurality of radiofrequency ablation mechanisms being used to perform radiofrequency ablation on a patient's lesions; A plurality of position adjustment mechanisms are installed on one side of the partition (4), and the plurality of position adjustment mechanisms are used to adjust the relative positions of the plurality of radiofrequency ablation mechanisms.

2. The radiofrequency ablation device according to claim 1, wherein: the radiofrequency ablation mechanism; A sliding sleeve (5) fixedly mounted on one side of the partition (4); A threaded sleeve (6) slidably mounted on the inner wall of the sliding sleeve (5); an extension tube (7) fixedly mounted on one end of the threaded sleeve (6); A radio frequency needle (8) is fixedly mounted on one end of the extension tube (7).

3. The radiofrequency ablation device according to claim 2, wherein: An extension hole (9) is provided on the extension tube (7), a wire (10) is provided inside the extension tube (7), the wire (10) is connected to the radio frequency needle (8), and one end of the wire (10) extends to the outside of the housing (1).

4. The radiofrequency ablation device according to claim 2, wherein: The position adjustment mechanism comprises: A micro motor (11) fixedly mounted on the inner wall of the sliding sleeve (5); A rotating rod (12) fixedly mounted on the output shaft of the micro motor (11) and extending into the interior of the threaded sleeve (6); A threaded block (13) is fixedly mounted on one end of the rotating rod (12) and is threadedly connected to the inner wall of the threaded sleeve (6).

5. The radiofrequency ablation device according to claim 2, wherein: A plurality of limiting grooves (14) are provided on the inner wall of the sliding sleeve (5), and a plurality of limiting blocks (15) are fixedly mounted on the threaded sleeve (6). The plurality of limiting blocks (15) are respectively slidably connected to the inner walls on both sides of the plurality of limiting grooves (14).

6. The radiofrequency ablation device according to claim 3, wherein: The host (2) is provided with a line collection mechanism, which comprises: A junction box (16) fixedly mounted on the host (2); Rotating a rotating shaft (17) mounted on the inner wall of the junction box (16); A plurality of transverse plates (18) rotatably sleeved on the rotating shaft (17) and fixedly connected to the inner wall of the junction box (16); A plurality of wire drums (19) fixedly sleeved on the rotating shaft (17) and respectively connected to the plurality of wires (10); A plurality of conductive slip rings (20) fixedly sleeved on the rotating shaft (17) and respectively connected to the plurality of conductive wires (10); A plurality of conductive slip rings (20) are sleeved on the rotating shaft (17) and fixedly connected to the plurality of transverse plates (18), respectively, and the plurality of conductive slip rings (20) are respectively connected to the plurality of wires (10); a plurality of connection cables (21) respectively mounted on the plurality of conductive slip rings (20) and connected to the host (2); A driving mechanism is mounted on the inner wall of the junction box (16).

7. The radiofrequency ablation device according to claim 6, wherein: The driving mechanism comprises: A servo motor (24) fixedly mounted on the inner wall of the junction box (16) and having a driving gear (25); A driven gear (26) is fixedly sleeved on the rotating shaft (17) and meshes with the driving gear (25).

8. The radiofrequency ablation device according to claim 6, wherein: A plurality of through openings (22) are provided on one side of the junction box (16), and two guide groove wheels (23) are rotatably mounted on each of the through openings (22), and the guide groove wheels (23) are respectively slidably connected to the plurality of wires (10).

9. The radiofrequency ablation device according to claim 6, wherein: The fixed sleeve on the housing (1) is provided with an annular plate (27), the sliding sleeve on the housing (1) is provided with a protective cover (28), and the protective cover (28) is provided with a slot (29).

10. The radiofrequency ablation device according to claim 6, wherein: A locking mechanism for locking the protective cover (28) is mounted on the housing (1), and the locking mechanism comprises: A vertical plate (30) fixedly mounted on the housing (1); A crossbar (31) fixedly mounted on the vertical plate (30); An L-shaped clamping plate (32) slidably mounted on the crossbar (31); A card block (33) fixedly mounted on the L-shaped card plate (32) and adapted to the card slot (29); A torsion spring (34) is slidably sleeved on the crossbar (31), and two ends of the torsion spring (34) are fixedly connected to the L-shaped clamping plate (32) and the crossbar (31), respectively.

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