Ablation needle assembly and ablation system with limited ablation direction

Abstract

The present invention discloses an ablation needle assembly and ablation system with limited ablation direction, which relates to the technical field of ablation needles, specifically a needle handle and a claw. The bottom of the needle handle is provided with an auxiliary disk, and the bottom of the needle handle is installed with a puncture needle. The interior of the puncture needle is provided with a single needle, and the exterior of the puncture needle is installed with an outer tube. The claw is provided on the outer surface of the outer tube, and the outer surface of the auxiliary disk is provided with a connecting disk. This ablation needle assembly and ablation system with limited ablation direction can directly puncture tumors in a tissue area through the design of the puncture needle and the single needle, and can use the design of the needle handle to rotate the outer tube counterclockwise after the puncture is completed, so that the puncture needle and the single needle move up and separate with respect to the interior of the outer tube, so that the outer tube stays in the tissue area, making it convenient for subsequent medical personnel to take samples and biopsies from the tumor area in the tissue area through the outer tube, without the need for further puncture, thereby reducing the patient's pain.

Description

Technical Field

[0001] The present invention relates to the technical field of ablation needles, and in particular to an ablation needle assembly and an ablation system for limiting an ablation direction. Background Art

[0002] The most radical treatment for liver cancer is radical resection or liver transplantation. However, many liver cancer patients are unable to undergo surgery at diagnosis due to liver decompensation, inability to tolerate surgery, poor tumor location, multicentricity, early metastasis, and postoperative recurrence. According to statistics, only approximately 20% of patients are eligible for surgical cure, leaving the majority with only non-surgical options. This is where radiofrequency ablation (RFA) technology, using an ablation needle, comes in, offering a new treatment option for liver cancer patients who are unable to undergo surgery.

[0003] As shown in the application number: CN210301203U, the present invention provides an ablation needle assembly and an ablation system. The ablation needle assembly includes an outer sleeve and an ablation needle. The outer sleeve is movably mounted outside the electrode needle body of the ablation needle and is detachably and rotatably connected to the ablation handle. After the ablation operation is completed, the outer sleeve can be disassembled from the ablation needle, and the outer sleeve can still be left in the tissue to provide a channel for other operations such as biopsy, avoiding repeated punctures and reducing damage to the tissue. Furthermore, in the present invention, a limiting portion is provided on the electrode needle body or the outer sleeve to limit the ablation direction of the ablation needle. When the ablation needle assembly is used for ablation treatment of HCM, the ablation direction of the ablation needle can avoid the thickness direction of the ventricular septum, thereby preventing the ablation needle from ablating and penetrating the endocardium in the thickness direction of the ventricular septum.

[0004] Similar to the above application, there are still some deficiencies:

[0005] It is not convenient for the ablation needle to puncture and ablate the tissue at a specific angle or a required angle during puncture and ablation. It is not convenient to perform ablation puncture with an oblique needle based on a vertical angle. In addition, medical staff may have unstable control over the needle angle during puncture and ablation, affecting the ablation effect.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and an ablation needle assembly and ablation system with limited ablation direction are proposed, in order to achieve a more practical purpose. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the present invention provides an ablation needle assembly and an ablation system with limited ablation direction, which solve the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ablation needle assembly and an ablation system for limiting the ablation direction, comprising a needle handle and a claw, an auxiliary disk is provided at the bottom of the needle handle, and a puncture needle is installed at the bottom of the needle handle, a single needle is provided inside the puncture needle, an outer tube is installed outside the puncture needle, the claw is provided on the outer surface of the outer tube, a connecting disk is provided on the outer surface of the auxiliary disk, and an adjustment assembly for limiting the ablation direction is installed at one end of the connecting disk, the adjustment assembly comprises a connecting frame, a built-in disk, an arbitrary stop shaft, a pointer and a chuck, and built-in disks are installed at both ends of the connecting frame, an arbitrary stop shaft is rotatably provided in the middle of the built-in disk, and a pointer is installed on the outer surface of the arbitrary stop shaft, and a chuck is provided at the end of the arbitrary stop shaft.

[0009] Furthermore, the auxiliary disk is engaged with the connecting disk, and the auxiliary disk and the connecting disk have the same diameter.

[0010] Furthermore, the needles and the single needles are distributed in an umbrella shape, and the outer surface of the bottom of the needle is threadedly connected to the inner bottom of the outer tube.

[0011] Furthermore, the diameter of the outer tube is larger than the diameter of the needle, and the outer tube is engaged with the chuck.

[0012] Furthermore, a placement cavity is provided between the auxiliary plate and the connecting plate, and guide channels are installed at both left and right ends of the placement cavity.

[0013] Furthermore, auxiliary components for quickly limiting the outer tube at a specific angle are installed at the upper and lower ends of the placement cavity, and the auxiliary components include a guide path and a slot, and the end of the guide path is provided with a slot.

[0014] Furthermore, the clamping slot and the guide path are an integrated structure, and the upper diameter of the clamping slot is larger than the lower diameter.

[0015] Furthermore, the input end of the single pin is electrically connected to a temperature control module, and the input end of the temperature control module is electrically connected to a coupler module.

[0016] Furthermore, the output end of the coupler module is electrically connected to the forward detection processing module and the reverse detection processing module respectively, and the input end of the coupler module is electrically connected to the ablation instrument module.

[0017] Furthermore, the input end of the ablation instrument module is electrically connected to the signal determination module, and the input end of the signal determination module is electrically connected to the signal processing module.

[0018] The present invention provides an ablation needle assembly and an ablation system with limited ablation direction, which have the following beneficial effects:

[0019] When using a needle to puncture and ablate tissue, the design of the auxiliary component can be used to place the ablation needle at a specific angle, which is convenient for medical personnel to use the ablation needle to puncture the tissue area in an inclined state based on the vertical direction for ablation, which will not affect the medical personnel's implementation. At the same time, it can also flexibly control the required ablation angle, without the need for the user to manually adjust the angle multiple times, which is convenient for adjusting the puncture angle of the ablation needle in advance when the tumor location is known, and the design of the adjustment component can also be used to flexibly adjust the inclination angle of the ablation needle according to the tissue tumor area, which is convenient for medical personnel to puncture and ablate based on the vertical direction, which is conducive to limiting the ablation direction and avoiding changes in the ablation direction due to unstable hands during puncture in an inclined state. Moreover, the needle design composed of multiple single needles can effectively increase the ablation area of ​​the tumor.

[0020] 1. This ablation needle assembly and ablation system with a limited ablation direction uses a needle design composed of multiple single needles. The needles and single needles form an umbrella-like structure, which can facilitate tissue puncture while effectively increasing the ablation area of ​​the tumor and improving the ablation effect.

[0021] 2. This ablation needle assembly and ablation system with limited ablation direction can utilize the slot-shaped structure design of the auxiliary assembly to engage and limit the outer tube connected to the needle handle when puncturing and ablating tissue with the needle. The entire slot is in an inclined state, which facilitates medical personnel to place the ablation needle at a specific angle. At the same time, when vertical puncture is required, the outer tube can be stopped from engaging with the slot, facilitating combined use. The design of the locking connection between the auxiliary disc and the adapter disc allows the user to directly detach the auxiliary disc and the adapter disc from the ablation needle without moving the internal ablation needle.

[0022] 3. This ablation needle assembly and ablation system with a limited ablation direction allows the ablation needle to move into the interior of the chuck in the longitudinal horizontal direction of the placement cavity, while the outer tube and the chuck are locked and limited. After the tumor position in the tissue area is observed, the chuck can be adjusted in advance by using the interaction between the internal disk and any stop axis. This is not limited by the angle, facilitating medical personnel to puncture and ablate the tissue tumor area in a vertical position, avoiding the problem of tilting the position due to unstable hand adjustment during puncture and ablation.

[0023] 4. This ablation needle assembly and ablation system with a defined ablation direction can directly puncture a tumor in a tissue region through the design of the needle and single needle. After puncture, the needle handle can be rotated counterclockwise on the outer tube, causing the needle and single needle to move upward and separate from the inner portion of the outer tube, allowing the outer tube to remain in the tissue region. This facilitates subsequent sampling and biopsy of the tumor region through the outer tube by medical personnel, eliminating the need for re-puncture and reducing patient pain.

[0024] 5. This ablation needle assembly and ablation system with limited ablation direction can heat the single needles in the needle in groups through the design of the temperature control module, which is convenient for selecting the appropriate temperature according to the tissue thickness in different areas. It can also re-determine the signal information processed by the signal processing module through the design of the signal determination module, thereby avoiding data errors and improving accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the external structure of an ablation needle assembly with limited ablation direction according to the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of an auxiliary disk and an adapter disk of an ablation needle assembly for limiting the ablation direction according to the present invention, viewed from above;

[0027] Figure 3 An ablation needle assembly for limiting ablation direction according to the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0028] Figure 4 This is a schematic side view of the structure of a built-in disk of an ablation needle assembly with limited ablation direction according to the present invention;

[0029] Figure 5 This is a schematic structural diagram of an ablation system with limited ablation direction according to the present invention.

[0030] In the figure: 1. needle handle; 2. auxiliary disk; 3. outer tube; 4. claw hand; 5. connecting disk; 6. placement cavity; 7. guide channel; 8. adjustment component; 801. connecting frame; 802. built-in disk; 803. arbitrary stop axis; 804. pointer; 805. chuck; 9. auxiliary component; 901. guide channel; 902. card slot; 10. needle; 11. single needle; 12. temperature control module; 13. coupler module; 14. forward detection processing module; 15. reverse detection processing module; 16. ablation instrument module; 17. signal determination module; 18. signal processing module. DETAILED DESCRIPTION

[0031] See also Figures 1 to 5The present invention provides a technical solution: an ablation needle assembly and an ablation system for limiting the ablation direction, comprising a needle handle 1, an auxiliary disk 2, an outer tube 3, a claw hand 4, a connecting disk 5, a placement cavity 6, a guide channel 7, an adjustment component 8, a connecting frame 801, a built-in disk 802, an arbitrary stop shaft 803, a pointer 804, a chuck 805, an auxiliary component 9, a guide channel 901, a card slot 902, a needle 10, a single needle 11, a temperature control module 12, a coupler module 13, a forward detection processing module 14, a reverse detection processing module 15, an ablation device module 16, a signal determination module 17 and a signal processing module 18. The bottom of the needle handle 1 is provided with an auxiliary disk 2, and the bottom of the needle handle 1 is installed with a needle 10. The needle 10 A single needle 11 is provided inside, an outer tube 3 is installed on the outside of the puncture needle 10, a claw hand 4 is provided on the outer surface of the outer tube 3, an adapter disc 5 is provided on the outer surface of the auxiliary disc 2, and an adjustment component 8 for limiting the ablation direction is installed at one end of the adapter disc 5. The auxiliary disc 2 is engaged with the adapter disc 5, and the auxiliary disc 2 and the adapter disc 5 have the same diameter. The adjustment component 8 includes an adapter frame 801, an internal disc 802, an arbitrary stop shaft 803, a pointer 804 and a chuck 805, and internal discs 802 are installed at both ends of the adapter frame 801, an arbitrary stop shaft 803 is rotatably provided in the middle of the internal disc 802, and a pointer 804 is installed on the outer surface of the arbitrary stop shaft 803, and a chuck 805 is provided at the end of the arbitrary stop shaft 803;

[0032] The specific operation is as follows: the ablation needle is moved to the inside of the chuck 805 by placing the cavity 6 in the longitudinal horizontal direction, and at the same time the outer tube 3 is engaged with the chuck 805 to limit the position. After the observation of the tumor position in the tissue area is completed, the angle of the chuck 805 can be adjusted in advance by using the interaction between the built-in disk 802 and the arbitrary stop shaft 803, without being limited by the angle, so that medical staff can puncture and ablate the tissue tumor area based on the vertical state, avoiding the problem of tilt state deviation caused by unstable hand adjustment of the angle during puncture and ablation.

[0033] like Figure 1 and Figure 2 As shown, the needle 10 and the single needle 11 are arranged in an umbrella shape, and the outer surface of the bottom of the needle 10 is threadedly connected to the inner bottom of the outer tube 3. The diameter of the outer tube 3 is larger than the diameter of the needle 10. The outer tube 3 is engaged with the chuck 805.

[0034] The entire ablation needle adopts a needle 10 design composed of multiple single needles 11. At the same time, the needle 10 and the single needle 11 form an umbrella-shaped structure, which can effectively increase the ablation area of ​​the tumor while facilitating puncture of the tissue, thereby improving the ablation effect. The design of the needle 10 and the single needle 11 can directly puncture the tumor in the tissue area, and after the puncture is completed, the needle handle 1 can be used to rotate the outer tube 3 counterclockwise, so that the needle 10 and the single needle 11 move up and separate with respect to the inside of the outer tube 3, so that the outer tube 3 stays in the tissue area, making it convenient for subsequent medical staff to take samples and biopsies from the tumor area in the tissue area through the outer tube 3 without the need for further puncture, thereby reducing the patient's pain.

[0035] like Figure 1 、 Figure 2 and Figure 4 As shown, a placement cavity 6 is provided between the auxiliary disk 2 and the connecting disk 5, and guide channels 7 are installed at both the left and right ends of the placement cavity 6. Auxiliary components 9 for quickly limiting the outer tube 3 at a specific angle are installed at the upper and lower ends of the placement cavity 6, and the auxiliary component 9 includes a guide channel 901 and a clamping groove 902. The end of the guide channel 901 is provided with a clamping groove 902. The clamping groove 902 and the guide channel 901 are an integrated structure, and the upper diameter of the clamping groove 902 is larger than the lower diameter.

[0036] When the tissue is punctured and ablated using the needle 10, the outer tube 3 connected to the needle handle 1 can be engaged and limited by the design of the shape structure of the slot 902 in the auxiliary component 9. The entire slot 902 is in an inclined state, which is convenient for medical staff to place the ablation needle at a specific angle. At the same time, when vertical angle puncture is required, the outer tube 3 can stop engaging with the slot 902, which is convenient for combined use. The design of the engaging connection between the auxiliary disk 2 and the connecting disk 5 makes it convenient for the user to directly detach the auxiliary disk 2 and the connecting disk 5 from the ablation needle without moving the internal ablation needle.

[0037] like Figure 1 、 Figure 3 and Figure 5 As shown, the input end of the single needle 11 is electrically connected to the temperature control module 12, and the input end of the temperature control module 12 is electrically connected to the coupler module 13, the output end of the coupler module 13 is electrically connected to the forward detection processing module 14 and the reverse detection processing module 15, respectively, the input end of the coupler module 13 is electrically connected to the ablation module 16, the input end of the ablation module 16 is electrically connected to the signal determination module 17, and the input end of the signal determination module 17 is electrically connected to the signal processing module 18;

[0038] The design of the temperature control module 12 can heat the single needles 11 in the needle 10 in groups, making it easy to select the appropriate temperature according to the thickness of tissue in different areas. The design of the signal determination module 17 can also re-determine the signal information processed by the signal processing module 18 to avoid data errors and improve accuracy.

[0039] In summary, the ablation needle assembly and ablation system with limited ablation direction can firstly heat the single needle 11 in the needle 10 in groups through the design of the temperature control module 12, so as to select the appropriate temperature according to the thickness of tissue in different areas, and can also re-determine the signal information processed by the signal processing module 18 through the design of the signal determination module 17. Then, when in use, the ablation needle is moved to the inside of the chuck 805 by placing the cavity 6 in the longitudinal horizontal direction, and the outer tube 3 is engaged with the chuck 805 to limit the position. After the observation of the tumor position in the tissue area is completed, the chuck 805 can be adjusted in advance by the interaction between the built-in disk 802 and the arbitrary stop shaft 803, without being limited by the angle, so that medical staff can puncture and ablate the tissue tumor area based on the vertical state, avoiding the problem of tilted state deviation caused by unstable hand adjustment angle during puncture and ablation. In addition, the outer tube 3 connected to the needle handle 1 can be engaged and limited by the design of the shape structure of the card slot 902 in the auxiliary component 9, and the entire card slot 902 is in a tilted state, which is convenient for The medical staff places the ablation needle at a specific angle, and when a vertical angle puncture is required, the outer tube 3 can stop engaging with the card slot 902, which is convenient for combined use, and the design of the auxiliary disk 2 and the connecting disk 5 being connected in an engaging manner makes it convenient for the user to directly disengage the auxiliary disk 2 and the connecting disk 5 from the ablation needle without moving the internal ablation needle. Finally, the entire ablation needle adopts a needle 10 design composed of multiple single needles 11. At the same time, the needle 10 and the single needle 11 form an umbrella-shaped structure, which can effectively increase the ablation area of ​​the tumor while facilitating puncture of the tissue, thereby improving the ablation effect. The design of the needle 10 and the single needle 11 can directly puncture the tumor in the tissue area, and after the puncture is completed, the design of the needle handle 1 can be used to rotate the outer tube 3 counterclockwise, so that the needle 10 and the single needle 11 move up and separate relative to the inside of the outer tube 3, so that the outer tube 3 stays in the tissue area, which is convenient for subsequent medical staff to take samples and biopsies from the tumor area in the tissue area through the outer tube 3, without the need for re-puncture, reducing the patient's pain.

Claims

1. An ablation system comprising an ablation needle assembly with a limited ablation direction, characterized in that: The invention comprises a needle handle (1) and a claw hand (4), wherein an auxiliary disk (2) is provided at the bottom of the needle handle (1), and a puncture needle (10) is installed at the bottom of the needle handle (1), a single needle (11) is provided inside the puncture needle (10), an outer tube (3) is installed outside the puncture needle (10), and the claw hand (4) is provided on the outer surface of the outer tube (3), and a connecting disk (5) is provided on the outer surface of the auxiliary disk (2), and an adjustment component (8) for limiting the ablation direction is installed at one end of the connecting disk (5), and the adjustment component (8) comprises a connecting frame (801), a built-in disk (802), an arbitrary stop shaft (803), a pointer (804) and a chuck (805), and the built-in disk (802) is installed at both ends of the connecting frame (801), and the middle part of the built-in disk (802) is provided with an arbitrary stop shaft (803), and the arbitrary stop shaft A pointer (804) is installed on the outer surface of (803), and a chuck (805) is provided at the end of the arbitrary stop shaft (803). The needle (10) and the single needle (11) are distributed in an umbrella shape, and the outer surface of the bottom of the needle (10) is threadedly connected to the inner bottom of the outer tube (3). The diameter of the outer tube (3) is larger than the diameter of the needle (10). The outer tube (3) is engaged with the chuck (805). A placement cavity (6) is provided between the auxiliary disk (2) and the connecting disk (5), and guide channels (7) are installed at both left and right ends of the placement cavity (6). Auxiliary components (9) for quickly limiting the outer tube (3) at a specific angle are installed at the upper and lower ends of the placement cavity (6), and the auxiliary component (9) includes a guide channel (901) and a card slot (902), and the end of the guide channel (901) is provided with a card slot (902).

2. An ablation system comprising an ablation needle assembly with a limited ablation direction according to claim 1, characterized in that: The auxiliary disk (2) is engaged and connected with the connecting disk (5), and the auxiliary disk (2) and the connecting disk (5) have the same diameter.

3. The ablation system comprising an ablation needle assembly with a limited ablation direction according to claim 1, characterized in that: The clamping slot (902) and the guide path (901) are an integrated structure, and the upper diameter of the clamping slot (902) is larger than the lower diameter.

4. The ablation system comprising an ablation needle assembly with a limited ablation direction according to claim 1, characterized in that: The input end of the single needle (11) is electrically connected to a temperature control module (12), and the input end of the temperature control module (12) is electrically connected to a coupler module (13).

5. An ablation system comprising an ablation needle assembly with a limited ablation direction according to claim 4, characterized in that: The output end of the coupler module (13) is electrically connected to a forward detection processing module (14) and a reverse detection processing module (15), respectively, and the input end of the coupler module (13) is electrically connected to an ablation instrument module (16).

6. The ablation system comprising an ablation needle assembly with a limited ablation direction according to claim 5, characterized in that: The input end of the ablation instrument module (16) is electrically connected to the signal determination module (17), and the input end of the signal determination module (17) is electrically connected to the signal processing module (18).

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