Sacral nerve stimulation electrode fixation device

Abstract

The sacral nerve stimulation electrode fixing device comprises a floor base, a floor support rod assembly arranged on the floor base, a handle assembly arranged on the floor support rod assembly and comprising a first side wall and a second side wall arranged opposite to each other, an electrode clamping mechanism comprising an elastic press switch arranged on the first side wall and a clamping slider movable under the drive of the elastic press switch, and a clamping space for accommodating the electrode is formed between the clamping slider and the second side wall, and the clamping slider is movable in the direction of approaching or moving away from the second side wall under the drive of the elastic press switch to realize clamping or releasing the electrode. The electrode fixing device in the application is stably placed on the ground through the floor base, when the electrode contact reaches the preset nerve target position, the electrode can be clamped and fixed by the electrode fixing device, the operator can remove the introducer sleeve of the introduced electrode alone, the operation experience is better, and the influence of electrode displacement can be reduced.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a sacral nerve stimulation electrode fixation device. Background Technology

[0002] A sacral nerve stimulator is an active implantable medical device, mainly consisting of an implantable pulse generator and electrodes. It is commonly used in sacral nerve modulation (SNM) to treat lower urinary tract dysfunction and related diseases. During sacral nerve stimulation electrode implantation surgery, an auxiliary tool, such as an inserter sleeve, is used to implant the electrode onto the specific sacral nerve. Once the electrode contact reaches the nerve target location, the inserter sleeve is removed. Because the inserter sleeve and electrode have an interference fit, and the electrode is a slender and easily bent structure, the removal of the inserter sleeve often requires the cooperation of two surgeons. One surgeon holds the electrode in the middle, close to the inserter sleeve, while the other operating hand slowly moves the inserter sleeve along the electrode towards its tip. To ensure the electrode remains relatively straight and stable, a surgeon's assistant also needs to support the electrode tip with one hand.

[0003] Without the aid of electrode fixation tools to provide support and clamping, it is difficult to ensure the electrode position when the surgeon and assistant perform the removal of the implant with their three hands suspended in the air, easily leading to electrode displacement within the body. Currently, in clinical surgeries for sacral nerve modulation both domestically and internationally, there is no specialized auxiliary electrode fixation tool to assist surgeons in successfully removing the implant single-handedly while preventing significant electrode displacement. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the difficulties in removing the implant sleeve and the easy displacement of the electrode during the removal of the implant sleeve in the prior art. Thus, an electrode fixing device is provided, which clamps and fixes the electrode so that the surgeon can remove the implant sleeve by himself, and the electrode will not be displaced during the removal of the implant sleeve.

[0005] To achieve the above objectives, embodiments of the present invention provide an electrode fixing device, which includes:

[0006] Ground base;

[0007] A ground support pole assembly is mounted on the ground base;

[0008] A handle assembly is disposed on the ground support assembly, and the handle assembly includes a first sidewall and a second sidewall that are spaced apart from each other.

[0009] The electrode clamping mechanism includes an elastic push switch disposed on the first side wall and a clamping slider that can move under the action of the elastic push switch;

[0010] A clamping space for accommodating electrodes is formed between the clamping slider and the second sidewall. The clamping slider can move closer to or further away from the second sidewall under the action of an elastic push switch to clamp or release the electrodes.

[0011] Optionally, the landing base includes:

[0012] The base itself is made of high-density material;

[0013] The foot groove is formed on the base body and includes an inclined foot surface that gradually slopes upward from one side edge of the base body.

[0014] Optionally, the ground support assembly includes:

[0015] The longitudinal telescopic support rod includes an outer rod fixedly mounted on the base and an inner rod telescopically mounted within the outer rod.

[0016] Optionally, the longitudinal telescopic strut further includes:

[0017] A connecting sleeve is fitted onto the upper end of the outer sleeve rod and is threadedly connected to the outer sleeve rod.

[0018] The support rod fixing component includes a threaded connection section adapted to be threadedly connected to the outer rod and a clearance fit section located above the threaded connection section. The support rod fixing component is installed on the clearance fit section and is adapted to fix the inner rod when the longitudinal telescopic support rod is adjusted to a preset height.

[0019] Optionally, the ground support assembly further includes:

[0020] A transverse support rod, one end of which is connected to the upper end of the inward-retracting rod;

[0021] An adjusting cantilever is located at the other end of the transverse support rod and is movable axially and / or circumferentially rotated along the transverse support rod, and the handle assembly is mounted on the adjusting cantilever.

[0022] Optionally, the ground support assembly further includes:

[0023] An adapter, adapted to connect the inner retractor and the transverse support, the adapter including an adapter body and longitudinal and horizontal through holes formed on the adapter body;

[0024] The upper end of the inner retractable rod is adapted to be inserted into the longitudinal perforation, and one end of the transverse support rod is adapted to be inserted into the horizontal perforation. The height of the adapter on the inner retractable rod and / or the insertion distance of the transverse support rod are adjustable.

[0025] Optionally, the clamping slider includes:

[0026] The clamping part has a clamping surface that is parallel to the second sidewall;

[0027] A sliding connection portion, which is adapted to be connected to the elastic push switch and can move along a preset guide rail on the handle assembly toward or away from the second sidewall.

[0028] Optionally, the resilient push-button switch includes:

[0029] The pressing member includes a pressing end located outside the first sidewall and a connecting end adapted to extend into the first sidewall and connect with the clamping slider;

[0030] An elastic reset member is disposed between the pressing member and the first sidewall, the elastic reset member being adapted to apply a force to the pressing member to move away from the second sidewall.

[0031] Optionally, a limiting protrusion structure is provided on the second sidewall at the position corresponding to the clamping part, and the height of the limiting protrusion structure relative to the second sidewall is smaller than the diameter of the electrode.

[0032] Optionally, the handle assembly includes a front handle shell and a rear handle shell, the rear handle shell having a recessed cavity, and the front handle shell fastening onto the rear handle shell to form an accommodating chamber that can accommodate and limit the clamping slider.

[0033] The handle rear shell includes a first side wall and a second side wall, and a third side wall connected between the first side wall and the second side wall. The third side wall is disposed opposite to the handle front shell and is provided with clearance openings suitable for electrodes to pass through.

[0034] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0035] 1. This application provides an electrode fixing device, which includes a base, a support rod assembly, a handle assembly, and an electrode clamping mechanism. The support rod assembly is disposed on the base; the handle assembly is disposed on the support rod assembly and includes a first sidewall and a second sidewall disposed at a distance from each other; the electrode clamping mechanism includes an elastic push switch disposed on the first sidewall and a clamping slider that can move under the action of the elastic push switch; a clamping space for accommodating the electrode is formed between the clamping slider and the second sidewall, and the clamping slider can move towards or away from the second sidewall under the action of the elastic push switch to clamp or release the electrode.

[0036] This design features an electrode clamping mechanism for holding and fixing the electrode, and a handle assembly for supporting the surgeon's hand. The electrode fixation device provides a relatively stable relationship between the surgeon's hand, the electrode, and the ground. During the removal of the implant sleeve, the surgeon simply presses the elastic switch on the electrode fixation device with one hand while using the other to remove the implant sleeve. This process is convenient, quick, and can be completed by a single person, improving the surgeon's experience. Simultaneously, it reduces the impact of electrode displacement within the body, enhancing the implantation effect.

[0037] In addition, this application uses a floor base to place the electrode fixing device stably on the ground. The ground can provide stable support for the electrode fixing device, thereby improving the stability of the electrode fixing device in clamping and fixing the electrode. Moreover, the present invention places the fixed electrode fixing device directly on the ground using a floor base, which can quickly and flexibly adjust the position of the electrode fixing device, making it simpler, more convenient and reliable to use.

[0038] 2. The base in this application includes a base body and a footrest groove. The base body is made of high-density material. The high-density material lowers the center of gravity of the electrode fixing device, and the base body is less prone to tipping or overturning under its own weight, providing more stable support for the electrode fixing device. The footrest groove is formed on the base body and includes an inclined footrest surface that gradually slopes upwards from one edge of the base body. By providing the footrest groove, when the surgeon and the base are on the same side of the operating table during surgery, the surgeon can place one foot on the footrest groove, making the base more stable on the ground, thereby improving the stability of the electrode fixing device in holding and fixing the electrodes.

[0039] 3. In this application, the inner telescopic rod and the outer telescopic rod can be connected and fixed by the connecting sleeve. The surgeon can adjust the length of the longitudinal telescopic support rod during the surgical preparation stage according to the height assessment of the operating table, so as to quickly adapt to the needs of different operating heights.

[0040] 4. This application mounts the handle assembly on the adjusting cantilever, which can move axially and rotate circumferentially along the transverse support. By adjusting the position and orientation of the adjusting cantilever, the position and angle of the handle assembly can be adjusted, making the handle assembly adjustable in multiple directions. This increases the selectivity of the handle assembly adjustment. Before surgery, the doctor can adjust the position and orientation of the adjusting cantilever as needed to better adapt to and fix electrodes at different positions or angles.

[0041] 5. This application, by setting an adapter, can stably connect the inner retractor and the lateral support. Furthermore, by adjusting the height of the adapter on the inner retractor and / or the insertion distance of the lateral support, the position of the handle assembly can be adjusted over a wide range. Before surgery, the doctor can adjust it as needed to adapt to different positional requirements, so as to better accommodate and fix electrodes at different positions or angles.

[0042] 6. By providing a limiting protrusion structure on the second side wall corresponding to the clamping part, the height of the limiting protrusion is slightly smaller than the diameter of the electrode, which can prevent the electrode from being over-clamped and damaged, and play a role in limiting protection.

[0043] 7. By providing a recessed cavity on the rear shell of the handle, the front shell of the handle is fastened to the rear shell of the handle to form a receiving chamber that can accommodate and limit the clamping slider, thereby limiting the clamping slider, improving the stability of the clamping slider, and preventing the clamping slider from being exposed; at the same time, the fastening installation design of the front shell and the rear shell of the handle makes installation and disassembly convenient.

[0044] 8. By providing clearance openings on the third side wall of the handle rear shell and the handle front shell opposite to it, the electrodes can pass through, thus preventing interference between the handle front shell and handle rear shell and the electrodes during clamping. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the structure of an electrode fixation device used to fix an electrode at one angle during surgery, according to an embodiment of the present invention.

[0047] Figure 2 This is an isometric view of the electrode fixing device in an embodiment of the present invention;

[0048] Figure 3 This is a front view of the electrode fixing device in an embodiment of the present invention;

[0049] Figure 4 As described in the embodiments of the present invention Figure 3 Partial sectional view at point C of the electrode fixing device;

[0050] Figure 5 This is a schematic diagram of the connecting sleeve in an embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of the support rod fixing component in an embodiment of the present invention;

[0052] Figure 7 This is a schematic diagram of the adapter structure in an embodiment of the present invention;

[0053] Figure 8 This is a schematic diagram of the structure of the landing base in an embodiment of the present invention;

[0054] Figure 9 This is a schematic diagram of the structure of the handle assembly in the embodiment of the present invention, where the electrode is fixed but not clamped.

[0055] Figure 10 This is a schematic diagram of the handle assembly in the electrode clamping state in an embodiment of the present invention;

[0056] Figure 11 As described in the embodiments of the present invention Figure 10 A top view of a portion of the protective electrode with a limiting protrusion structure;

[0057] Figure 12 This is an exploded view of the handle assembly and electrode clamping mechanism in an embodiment of the present invention;

[0058] Figure 13 This is a schematic diagram of the handle assembly in an embodiment of the present invention;

[0059] Figure 14 This is a schematic diagram of the assembly of the handle assembly and the electrode clamping mechanism in an embodiment of the present invention;

[0060] Figure 15 As described in the embodiments of the present invention Figure 14 A cross-sectional view of the electrode fixing device (AA section).

[0061] Figure 16 This is a structural diagram of the slider clamping device in an embodiment of the present invention;

[0062] Figure 17 This is a front view of the slider clamping device in an embodiment of the present invention;

[0063] Figure 18 As described in the embodiments of the present invention Figure 14 Cross-sectional view of the electrode fixing device at the BB section when the elastic push switch is not pressed;

[0064] Figure 19As described in the embodiments of the present invention Figure 14 Cross-sectional view of the electrode fixing device at the BB section when the elastic push switch is pressed;

[0065] Figure 20 This is an isometric view of the handle rear shell in an embodiment of the present invention;

[0066] Figure 21 As described in the embodiments of the present invention Figure 20 A close-up view of the back cover of the handle.

[0067] Explanation of reference numerals in the attached figures:

[0068] 100. Electrode fixing device; 200. Electrode; 300. Injector sleeve;

[0069] 1. Base; 11. Base body; 12. Foot groove; 13. Connecting column; 14. Stable support leg; 15. Connecting platform; 16. Threaded hole;

[0070] 2. Handle assembly; 21. First sidewall; 211. Molded structure; 22. Second sidewall; 23. Guide rib; 24. Limiting protrusion structure; 241. First limiting protrusion; 242. Second limiting protrusion; 25. Handle front shell; 26. Handle rear shell; 261. Third sidewall; 262. Clearance opening; 27. Mounting groove;

[0071] 3. Electrode clamping mechanism; 31. Elastic push switch; 311. Pressing element; 3111. Pressing end; 3112. Connecting end; 312. Elastic reset element; 313. Limiting nut; 32. Clamping slider; 321. Clamping part; 322. Sliding connecting part; 3221. Connecting part; 3222. Sliding part; 33. Slide rail groove;

[0072] 4. Bolt assembly; 41. Adjusting bolt; 42. Fastening nut.

[0073] 5. Ground support rod assembly; 51. Longitudinal telescopic support rod; 511. Outer rod; 512. Inner rod; 513. Connecting sleeve; 5131. Threaded connection section; 5132. Clearance fit section; 5133. Mounting hole; 5134. Anti-slip structure; 514. Support rod fixing component; 52. Lateral support rod; 53. Adjustable cantilever; 531. Cantilever body; 532. Adapter sleeve; 533. Cantilever fixing component; 54. Adapter; 541. Adapter body; 542. Longitudinal through hole; 543. Horizontal through hole; 544. Fastening bolt assembly. Detailed Implementation

[0074] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0075] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0076] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0077] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0078] like Figures 1 to 21 As shown, an embodiment of the present invention provides an electrode fixing device, which includes a base 1, a support rod assembly 5, a handle assembly 2, and an electrode clamping mechanism 3.

[0079] Specifically, the ground support rod assembly 5 is mounted on the ground base 1; the handle assembly 2 is mounted on the ground support rod assembly 5, and the handle assembly 2 includes a first sidewall 21 and a second sidewall 22 that are spaced apart from each other; the electrode clamping mechanism 3 includes an elastic push switch 31 mounted on the first sidewall 21 and a clamping slider 32 that can move under the action of the elastic push switch 31; a clamping space for accommodating the electrode 200 is formed between the clamping slider 32 and the second sidewall 22, and the clamping slider 32 can move towards or away from the second sidewall 22 under the action of the elastic push switch 31 to clamp or release the electrode 200.

[0080] With this design, the electrode clamping mechanism 3 of the electrode fixation device 100 is used to clamp and fix the electrode 200, and the handle assembly 2 is used to provide support for the doctor's holding hand. The electrode fixation device 100 can provide a relatively stable relationship between the doctor's holding hand, the electrode 200, and the ground. During the removal of the implant sleeve 300, the surgeon holds the elastic push switch 31 of the electrode fixation device 100 with one holding hand, and removes the implant sleeve 300 with the other operating hand. This operation is convenient, quick, and can be completed by a single person, which helps to improve the doctor's operating experience; at the same time, it can reduce the impact of the electrode 200 shifting into the body and improve the implantation effect of the electrode 200.

[0081] Furthermore, in this embodiment, the electrode fixing device 100 is stably placed on the ground using the floor base 1. The ground provides stable support for the electrode fixing device 100, thereby improving the stability of the electrode fixing device 100 in clamping and fixing the electrode 200. Moreover, by placing the electrode fixing device 100 directly on the ground using the floor base 1, the position of the electrode fixing device 100 can be quickly and flexibly adjusted, making it simpler, more convenient, and more reliable to use. Compared to placing the electrode fixing device 100 on the patient's back for support and fixation, the support and fixation method in this embodiment is not only more stable but also reduces pressure on the patient's back. Compared to clamping and fixing the electrode fixing device 100 to the edge of the operating table, the support and fixation method in this embodiment is not only more stable but also not limited by objective conditions such as the size and specifications of the operating table.

[0082] In this embodiment, the specific structure of the landing base 1 is not limited:

[0083] Alternatively, in one embodiment, the base 1 is a tripod, and the tripod structure of the base 1 can provide good stability.

[0084] Optionally, in another embodiment, the base 1 includes a base body 11 and a footrest groove 12. Optionally, the base body 11 is made of a high-density material; the high-density material of the base body 11 lowers the center of gravity of the electrode fixing device 100, and the base body 11 is less prone to tipping or overturning under its own weight, providing more stable support for the electrode fixing device 100. The base body 11 can be made of metal, plastic, or other materials; this embodiment does not limit this. Preferably, the base body 11 is made of carbon steel or stainless steel.

[0085] Optionally, the foot groove 12 is formed on the base body 11 and includes an inclined foot surface that gradually slopes upward from one side edge of the base body 11. By providing the foot groove, when the surgeon and the base 1 are on the same side of the operating table, the surgeon can place one foot on the foot groove 12 to make the base 1 more stably placed on the ground, thereby improving the stability of the electrode fixing device 100 in clamping and fixing the electrode 200.

[0086] In one embodiment, the base body 11 is provided with rollers at the bottom, which facilitates the handling of the electrode fixation device 100 and the adjustment of its placement position before surgery.

[0087] In another embodiment, a stabilizing support leg 14 is provided at the bottom of the base body 11. Optionally, there are multiple stabilizing supports 14, each corresponding to one of the top corners of the base body 11. Optionally, the base body 11 is a rectangular column, and there are four stabilizing supports 14, each fixedly positioned at one of the four top corners of the bottom of the base body 11. The stabilizing supports 14 can be made of rubber or plastic, or other materials. The stabilizing supports 14 support the ground, preventing the electrode fixing device 100 from being unstable due to uneven processing of the bottom surface of the base body 11 or uneven ground. In addition, by providing stabilizing supports 14, when placing or moving the electrode fixing device 100, wear or impact on the bottom surface of the base body 11 can be reduced, improving the service life of the base body 11. Furthermore, the stabilizing support can reduce noise generated when impacting the ground, providing a quieter surgical environment for the patient.

[0088] Optionally, the base body 11 is provided with a threaded hole extending downward from the upper surface of the base body 11, which is suitable for connecting the floor base 1 to an external heavy object by screws or bolts, so as to further enhance the stability of the floor base 1. This reinforcement method of the floor base 1 is suitable when the surgeon and the floor base 1 are located on different sides of the operating table to perform surgery.

[0089] Optionally, in this embodiment, the ground support assembly 5 includes a longitudinal telescopic support rod 51. The longitudinal telescopic support rod 51 includes an outer rod 511 fixedly mounted on the ground base 1 and an inner rod 512 telescopically mounted within the outer rod 511. The inner rod 512 is telescopically mounted within the outer rod 511, and the length of the longitudinal telescopic support rod 51 can be adjusted by adjusting the telescopic length of the inner rod 512 within the outer rod 511.

[0090] Optionally, the base 1 further includes a connecting post 13 disposed on the base body 11, and the connecting post 13 is threadedly connected to the outer sleeve rod 511. Preferably, the connecting post 13 is hollow and has an internal thread on its inner wall, which mates with the external thread on the outer sleeve rod 511. The threaded connection between the connecting post 13 and the outer sleeve rod 511 facilitates installation and disassembly.

[0091] Optionally, the longitudinal telescopic support rod 51 further includes a connecting sleeve 513 and a support rod fixing member 514. The connecting sleeve 513 is sleeved on the upper end of the outer sleeve 511 and is threadedly connected to the outer sleeve 511. The connecting sleeve 513 includes a threaded connecting section 5131 adapted to be threadedly connected to the outer sleeve 511 and a clearance fit section 5132 located above the threaded connecting section 5131. The support rod fixing member 514 is installed on the clearance fit section 5132 and is adapted to fix the inner retractable rod 512 when the longitudinal telescopic support rod 51 is adjusted to a preset height. With this configuration, the surgeon can adjust the length of the longitudinal telescopic support rod 51 during the surgical preparation stage according to the height assessment of the operating table to quickly adapt to the needs of different operating heights. Optionally, the inner retractable rod 512 is provided with a scale, which allows the surgeon to quickly and accurately adjust the length of the longitudinal telescopic support rod 51 according to the scale markings.

[0092] Optionally, the clearance fit section 5132 is provided with a mounting hole 5133, and the support rod fixing member 514 is a set screw provided in the mounting hole 5133. Optionally, the inner wall of the connecting sleeve 513 is provided with an internal thread, and the upper end of the outer sleeve 511 is provided with an external thread that mates with the connecting sleeve 513. When installing or adjusting the longitudinal telescopic support rod 51, first install the connecting sleeve 513 and the outer sleeve 511, and axially fit the inner telescopic rod 512 inside the outer sleeve 511. Then adjust the relative position of the inner telescopic rod 512 on the outer sleeve 511, forming a gap space between the inner wall of the clearance fit section 5132 and the outer wall of the inner telescopic rod 512. Screw the set screw into the mounting hole 5133 and extend it into the gap space, so that the end of the set screw abuts against the outer wall of the inner telescopic rod 512, thereby fixing the inner telescopic rod 512.

[0093] Optionally, the connecting sleeve 513 is provided with an anti-slip structure 5134. The anti-slip structure 5134 can increase the friction between the hand and the connecting sleeve 513, making it easier for the user to rotate and adjust. Optionally, the anti-slip structure 5134 is a protruding rib provided on the outer wall of the connecting sleeve 513 along the length direction of the connecting sleeve 513. Of course, the anti-slip structure 5134 can also be other shapes, and this embodiment does not limit it.

[0094] The connecting sleeve 513 and the support rod fixing member 514 are used to connect the outer rod 511 and the inner rod 512 and fix the relative positional relationship between the two rods. Of course, this effect can also be achieved by other height adjustment components, such as tapered elastic sleeve thread locking mechanism, etc.

[0095] Optionally, a connecting platform 15 is provided on the base body 11. The electrode fixing device 100 also includes an auxiliary support assembly (not shown in the figure). One end of the auxiliary support assembly is installed on the connecting platform 15, and the other end is connected to the inner retractable rod 512. The auxiliary support assembly is used to reinforce the ground support rod assembly 5 as a whole, preventing the longitudinal telescopic support rod 51 from being disturbed by bending moment in space. In addition, the auxiliary support assembly can also help fix the axial relative position of the inner retractable rod 512 on the outer sleeve rod 511, preventing the inner retractable rod 512 from sliding axially relative to the outer sleeve rod 511 after installation and fixing, thereby enhancing the stability of the inner retractable rod 512 installed and fixed in the outer sleeve rod 511. The connecting platform 15 is hollow and has an internal thread on its inner wall, which mates with the external thread on the auxiliary support assembly. The shape and number of the connecting platform 15 and the auxiliary support assembly can be set according to different application scenarios.

[0096] Optionally, the ground support rod assembly 5 further includes a transverse support rod 52 and an adjusting arm 53. Specifically, one end of the transverse support rod 52 is connected to the upper end of the retractable rod 512; optionally, the adjusting arm 53 is disposed at the other end of the transverse support rod 52 and can move axially and / or rotate circumferentially along the transverse support rod 52, and the handle assembly 2 is mounted on the adjusting arm 53.

[0097] With this design, by mounting the handle assembly 2 on the adjusting arm 53, the adjusting arm 53 can move axially and rotate circumferentially along the transverse support 52. By adjusting the position and orientation of the adjusting arm 53, the position and angle of the handle assembly 2 can be adjusted, making the handle assembly 2 adjustable in multiple directions. This increases the selectivity of the handle assembly 2 adjustment. Before surgery, the doctor can adjust the position and orientation of the adjusting arm 53 as needed to better adapt to and fix the electrode 200 at different positions or angles.

[0098] Optionally, the adjustable cantilever 53 includes a cantilever body 531, an adapter sleeve 532, and a cantilever fixing member 533. Specifically, the adapter sleeve 532 is disposed at one end of the cantilever body 531. The adapter sleeve 532 is adapted to be sleeved on the outside of the transverse support rod 52 and can move in the axial direction and / or rotate in the circumferential direction along the transverse support rod 52. The cantilever fixing member 533 is adapted to fix the position of the adapter sleeve 532.

[0099] Optionally, the adapter sleeve 532 and the cantilever body 531 are integrally formed, which can increase the stability of the adjustable cantilever 53, thereby enhancing the installation stability of the handle assembly 2. Optionally, the adapter sleeve 532 is provided with a mounting through hole, and the cantilever fixing member 533 is a set screw provided in the mounting through hole. By screwing in the set screw, its end abuts against the outer wall of the transverse support rod 52 provided inside the adapter sleeve 532, thus fixing the position of the adapter sleeve 532.

[0100] Optionally, the ground support rod assembly 5 further includes an adapter 54, which is adapted to connect the inner retractable rod 512 and the transverse support rod 52. The adapter 54 includes an adapter body 541 and a longitudinal through hole 542 and a horizontal through hole 543 formed on the adapter body 541. The upper end of the inner retractable rod 512 is adapted to be connected to the longitudinal through hole 542, and one end of the transverse support rod 52 is adapted to be connected to the horizontal through hole 543. The height of the adapter 54 on the inner retractable rod 512 and / or the through distance of the transverse support rod 52 are adjustable.

[0101] With this configuration, the inner retractable rod 512 and the transverse support rod 52 can be stably connected via the adapter 54. Furthermore, by adjusting the height of the adapter 54 on the inner retractable rod 512 and / or the insertion distance of the transverse support rod 52, the position of the handle assembly 2 can be adjusted over a wide range. Before surgery, the surgeon can adjust it as needed to adapt to different positional requirements, better accommodating and fixing electrodes 200 at different positions or angles. It is worth noting that in this embodiment, height adjustment can be divided into coarse and fine adjustments. The aforementioned adjustment of the longitudinal telescopic rod 51 is a rapid coarse adjustment of the body support height during the surgical preparation stage; the adjustment of the adapter 54 at this time is a fine adjustment of the height of the transverse support rod 52 before the actual surgery.

[0102] Optionally, the adapter 54 further includes a longitudinal opening and a horizontal opening on the adapter body 541. The longitudinal opening is arranged along the axis of the longitudinal through hole 542 and communicates with the longitudinal through hole 542. The horizontal opening is arranged along the axis of the horizontal through hole 543 and communicates with the horizontal through hole 543. A fastening bolt assembly 544 is provided on the adapter body 541 to adjust the size of the longitudinal and horizontal openings, so as to achieve clamping and fixing of the inner retractor 512 and the transverse support 52 by the adapter 54. Optionally, the fastening bolt assembly 544 includes a bolt and a nut that mates with it.

[0103] With this configuration, the relative positions of the inner retraction rod 512 and the lateral support rod 52 can be accurately adjusted via the adapter 54, and the connection is stable.

[0104] Alternatively, in addition to the adapter 54 mentioned above, a universal adapter can be used to connect to the inner retraction rod 512 and the transverse support rod 52 respectively, thereby improving the adjustment efficiency.

[0105] In this embodiment, the clamping slider 32 includes a clamping part 321 and a sliding connecting part 322.

[0106] Specifically, the clamping part 321 has a clamping surface that is parallel to the second side wall 22; the sliding connection part 322 is adapted to be connected to the elastic push switch 31 and can move along the preset guide rail on the handle assembly 2 toward or away from the second side wall 22.

[0107] Optionally, a slide rail groove 33 is provided on one side of the sliding connection part 322, and a preset guide rail is a guide rib 23 provided on the handle assembly 2 corresponding to the slide rail groove 33. The extending direction of the guide rib 23 is parallel to the moving direction of the clamping slider 32.

[0108] Preferably, there are multiple slide rail grooves 33 and multiple corresponding guide ribs 23 to improve the stability of the fit. More preferably, in this embodiment, there are two slide rail grooves 33 and two guide ribs 23. The double-slot sliding design of the sliding connection 322 improves the smoothness of the movement of the clamping slider 32. Of course, those skilled in the art can adjust the number of slide rail grooves 33 and corresponding guide ribs 23 according to the actual situation, and this embodiment does not limit this.

[0109] Optionally, the resilient push-button switch 31 includes a pressing member 311 and a resilient reset member 312. Specifically, the pressing member 311 includes a pressing end 3111 located outside the first sidewall 21 and a connecting end 3112 adapted to extend into the first sidewall 21 and connect with the clamping slider 32; further, the resilient reset member 312 is disposed between the pressing member 311 and the first sidewall 21, and the resilient reset member 312 is adapted to apply a force to the pressing member 311 to move in a direction away from the second sidewall 22.

[0110] Optionally, the first sidewall 21 is provided with a mounting groove 27 suitable for mounting the elastic push switch 31, and the elastic reset member 312 is disposed between the inner wall of the mounting groove 27 and the pressing end 3111.

[0111] Optionally, the first sidewall 21 is recessed towards the second sidewall 22 to form a mounting groove 27, and the bottom wall of the mounting groove 27 is provided with a mounting through hole into which the connecting end 3112 of the pressing member 311 can extend.

[0112] Preferably, the pressing member 311 is a pressing bolt with a set length, and the mounting groove 27 is a cylindrical groove.

[0113] Optionally, the elastic reset member 312 is a compression spring that is compressed between the inner wall of the mounting groove 27 and the inner side of the pressing end 3111, and is adapted to apply an elastic thrust to the pressing member 311 to move away from the second side wall 22.

[0114] Optionally, the pressing end 3111 of the pressing member 311 includes a limiting abutment portion and a pressing portion with an increased outer diameter. The limiting abutment portion is located near the elastic reset member 312. The pressing portion includes a pressing member 311 body with a predetermined extension length. The limiting abutment portion is an annular boss structure provided on the end of the pressing member 311 body. The elastic reset member 312 compresses and abuts against the mounting groove 27 and the limiting abutment portion. The outer diameter of the limiting abutment portion is slightly smaller than the diameter of the mounting groove 27, so that when the pressing member 311 is pressed, the limiting abutment portion can move relative to the axis of the mounting groove 27 within the mounting groove 27, thereby increasing the range of motion of the pressing member 311. The pressing portion is located outside the mounting groove 27 and its outer diameter is larger than the diameter of the mounting groove 27.

[0115] Preferably, the pressing part has a disc-shaped structure for easy pressing.

[0116] Preferably, an arc-shaped transition chamfer is provided between the pressing part and the limiting abutment part, which can reduce the shear stress at the connection and extend the service life of the pressing part 311.

[0117] With this design, pressing the pressing member 311 causes the connecting end 3112 of the pressing member 311 to drive the clamping slider 32 to move closer to the second sidewall 22, clamping the electrode 200. At the same time, the elastic reset member 312 is shortened by pressure. When the pressure on the pressing member 311 is released, the elastic reset member 312 returns to its original length under the action of its own elastic force, and drives the pressing member 311 to move and reset away from the second sidewall 22.

[0118] In this embodiment, the clamping part 321 is a clamping plate arranged parallel to the second side wall 22, and the sliding connection part 322 includes a connecting part 3221 and a sliding part 3222, with the connecting part 3221 connecting between the clamping plate and the sliding part 3222.

[0119] Optionally, such as Figures 16 to 19 As shown, the connecting part 3221 is a plate with both ends bent. The two ends of the plate are connected to the clamping plate, and a limiting space is formed between the middle of the plate and the clamping plate. The connecting end 3112 of the pressing member 311 extends into and is locked and limited in the limiting space.

[0120] Optionally, an arch-shaped clearance groove is provided at the position of the mounting through hole on the bottom wall of the mounting groove 27 at the lower edge of the plate. The diameter of the arch-shaped clearance groove is slightly larger than the diameter of the connecting end 3112 of the pressing member 311, so that the connecting end 3112 can pass through the inner wall of the mounting groove 27 and the arch-shaped clearance groove on the plate and extend into the limiting space.

[0121] Optionally, such as Figures 16 to 18As shown, at least the connecting end 3112 of the pressing member 311 is threaded. The connecting end 3112 extends into the limiting space and is connected to the connecting end 3112 by a limiting nut 313 disposed in the limiting space, thereby locking and limiting the pressing member 311 within the limiting space. After the pressing member 311 is connected to the limiting nut 313, it is installed as a whole into the limiting space of the connecting part 3221. The upper half of the limiting nut 313 is locked and limited on the inner side of the connecting part 3221, which is suitable for limiting the connection of the pressing member 311.

[0122] like Figure 16 , Figure 17 , Figure 19 As shown, when the pressing member 311 is pressed, the pressing member 311 drives the limiting nut 313 to move towards the clamping part 321 and presses against the clamping part 321, thereby pushing the clamping part 321 towards the second side wall 22 to clamp the electrode 200. Figure 18 As shown, when the pressing member 311 is released, the pressing member 311 and the limiting nut 313 move away from the clamping part 321 under the action of the elastic reset member 312. The limiting nut 313 is locked and limited on the connecting part 3221, thereby realizing that the clamping part 321 can be automatically pulled away from the second side wall 22 under the action of the elastic reset member 312, and the electrode 200 is released.

[0123] With this design, the connecting end 3112 of the pressing member 311 is connected to the sliding connecting part 322. By pressing or releasing the pressing end 3111 of the pressing member 311, the connecting end 3112 can drive the clamping slider 32 to move closer to or away from the second side wall 22. The pressing member 311 is connected to the sliding connecting part 322, and the positioning is stable, making operation convenient.

[0124] Preferably, in this embodiment, instead of opening a circumferentially closed through hole or clearance groove structure on the plate, an arch-shaped clearance groove is provided on the lower edge of the plate for the pressing member 311 to extend into. The arch-shaped clearance groove adopts a non-closed design, which facilitates the installation and removal of the limiting nut 313 in the limiting space, and facilitates the assembly or disassembly of the pressing member 311 and the clamping slider 32.

[0125] Optionally, the sliding part 3222 includes an "n"-shaped slider body. The slider body includes two slider sidewalls arranged opposite each other. The slider sidewalls have a set thickness. An arch-shaped slide rail groove 33 is provided on the bottom end surface of the slider sidewall. The extension direction of the slide rail groove 33 is parallel to the moving direction of the slider 32.

[0126] Optionally, the end face of the slider body near the second side wall 22 is connected to the connecting part 3221, and the other end face is adapted to abut against the inner side of the first side wall 21 to limit the clamping slider 32.

[0127] Preferably, the circumferential edge of the other end face of the slider body extends circumferentially to form an arch-shaped side plate, thereby increasing the contact area with the first side wall 21 and improving the stability of the limiting position.

[0128] Preferably, the first sidewall 21 is forged into an inwardly recessed profile 211 in the direction close to the second sidewall 22. An installation groove 27 is formed on the inner side of the profile 211. The inner diameter of the "n"-shaped opening of the slider body is larger than the outer diameter of the profile 211, so as to avoid interference between the profile 211 and the sliding part 3222 when the sliding part 3222 is in motion.

[0129] In this embodiment, a limiting protrusion structure 24 is provided on the second sidewall 22 at the position corresponding to the clamping part 321. The height of the limiting protrusion structure 24 relative to the second sidewall 22 is slightly smaller than the diameter of the electrode 200.

[0130] By using the limiting protrusion structure 24, when the doctor presses the elastic press switch 31, the clamping part 321 of the electrode clamping mechanism 3 moves close to the second side wall 22 to clamp the electrode 200. By increasing the pressing force, the clamping force on the electrode 200 is increased until the clamping surface of the clamping part 321 contacts and abuts against the limiting protrusion structure 24. At this point, the clamping force cannot be increased further, thereby preventing the electrode 200 from being over-clamped and damaged, and playing a limiting protection role.

[0131] Optionally, the limiting protrusion structure 24 includes a first limiting protrusion 241 and a second limiting protrusion 242 spaced apart along the length of the second sidewall 22. The second sidewall 22 has a clamping mating surface adapted to the shape and size of the clamping surface. The first limiting protrusion 241 and the second limiting protrusion 242 are distributed at both ends of the clamping mating surface. By using the first limiting protrusion 241 and the second limiting protrusion 242 spaced apart along the length of the second sidewall 22, the electrode 200 is positioned between the first limiting protrusion 241 and the second limiting protrusion 242. This avoids the clamping surface from tilting and abutting against the limiting protrusion when a single limiting protrusion is provided, which would squeeze the electrode 200, resulting in better protection and greater safety.

[0132] Preferably, the first limiting protrusion 241 and the second limiting protrusion 242 are set to the same protrusion height to ensure uniform force distribution.

[0133] By setting the first limiting protrusion 241 and the second limiting protrusion 242 to the same protrusion height, it can be ensured that the clamping surface and the second side wall 22 remain parallel when the clamping surface abuts against the limiting protrusion. The first limiting protrusion 241 and the second limiting protrusion 242 jointly bear the pressure from the clamping part 321, ensuring the uniformity of the force.

[0134] Optionally, the first limiting protrusion 241 is a flange structure formed by bending and extending the upper edge of the second sidewall 22 toward the first sidewall 21, and the second limiting protrusion 242 is a long strip-shaped protrusion provided on the inner side of the second sidewall 22, the length of which is adapted to the width of the second sidewall 22.

[0135] Optionally, the first limiting protrusion 241 and the second limiting protrusion 242 are integrally formed with the second sidewall 22.

[0136] In this embodiment, the handle assembly 2 includes a handle front shell 25 and a handle rear shell 26.

[0137] Specifically, the handle rear shell 26 has a recessed cavity, and the handle front shell 25 is fastened to the handle rear shell 26 to form a receiving chamber that can accommodate the limiting clamping slider 32.

[0138] This design, by setting a cavity in the handle rear shell 26, allows the handle front shell 25 to be fastened onto the handle rear shell 26, forming a receiving chamber that can accommodate the limiting clamping slider 32, thereby limiting the clamping slider 32, improving the stability of the clamping slider 32, and preventing the clamping slider 32 from being exposed; at the same time, the fastening installation design of the handle front shell 25 and handle rear shell 26 makes installation and disassembly convenient.

[0139] Furthermore, the handle rear shell 26 includes a first side wall 21 and a second side wall 22, and a third side wall 261 connected between the first side wall 21 and the second side wall 22. The third side wall 261 is disposed opposite to the handle front shell 25 and is provided with a clearance opening 262 suitable for the electrode 200 to pass through.

[0140] Optionally, the clearance opening 262 is an elongated notch formed on the third side wall 261 and the front cover 25 of the handle, close to the second side wall 22. The width of the clearance opening 262 is greater than the diameter of the electrode 200. With this design, by providing clearance openings 262 on the third side wall 261 of the rear cover 26 of the handle and on the front cover 25 of the handle opposite to it, the electrode 200 can pass through, preventing interference between the front cover 25 and the rear cover 26 of the handle and the electrode 200 during clamping.

[0141] Optionally, such as Figures 14 to 17 As shown, in this embodiment, the side of the clamping slider 32 with the slide rail groove 33 faces the third side wall 261, and the third side wall 261 is provided with a guide rib 23, the extension direction of the guide rib 23 being parallel to the width direction of the third side wall 261.

[0142] Optionally, reinforcing ribs are provided at intervals on the handle rear shell 26 to improve the strength and rigidity of the handle assembly 2, making it less prone to deformation or damage and extending the service life of the handle assembly 2.

[0143] Optionally, two guide ribs 23 are arranged at a predetermined interval on the third side wall 261 of the handle rear shell 26, and correspond one-to-one with the two slide rail grooves 33 on the sliding connection part 322. By extending the guide ribs 23 on the third side wall 261 of the handle rear shell 26, the stability of the guide ribs 23 and the smoothness of the movement of the clamping slider 32 are enhanced.

[0144] In this embodiment, the handle assembly 2 is rotatably connected to the adjusting arm 53 via a bolt assembly 4. The bolt assembly 4 includes an adjusting bolt 41 adapted to be fixed to the handle assembly 2 and a fastening nut 42 for fixing the handle assembly 2.

[0145] Optionally, the cantilever body 531 includes a first connecting sidewall and a second connecting sidewall. The upper end of the handle assembly 2 is placed between the first connecting sidewall and the second connecting sidewall. The first connecting sidewall, the second connecting sidewall, and the handle assembly 2 are provided with corresponding connecting holes. The adjusting bolt 41 passes through the connecting holes on the first connecting sidewall, the handle assembly 2, and the second connecting sidewall in sequence. By tightening the adjusting bolt 41 and the fastening nut 42, the cantilever body 531 is clamped and the handle assembly 2 is fixed.

[0146] By rotating the adjusting bolt 41 and the fastening nut 42 in opposite directions, the clamping force of the cantilever body 531 on the handle assembly 2 is loosened. At this time, the angle between the handle assembly 2 and the cantilever body 531 can be adjusted. Then, the adjusting bolt 41 and the fastening nut 42 are tightened in opposite directions to make the cantilever body 531 clamp and fix the handle assembly 2, so as to achieve fixation at this angle.

[0147] Optionally, the fastening nut 42 is a high-head knurled nut, but other types of nuts are also possible; this embodiment does not limit this.

[0148] This design connects the handle assembly 2 to the adjusting arm 53 via the bolt assembly 4, which facilitates the disassembly and installation of the handle assembly 2 and the adjustment of the angle between the handle assembly 2 and the arm body 531. Before surgery, the doctor can adjust the bolt assembly 4 as needed to adjust the angle between the handle assembly 2 and the adjusting arm 53 to better accommodate and fix electrodes 200 at different angles.

[0149] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An electrode fixing device, characterized in that, include: Grounding base (1); A ground support pole assembly (5) is mounted on the ground base (1); A handle assembly (2) is disposed on the ground support assembly (5), and the handle assembly (2) includes a first sidewall (21) and a second sidewall (22) disposed at a relative interval. The electrode clamping mechanism (3) includes an elastic push switch (31) disposed on the first side wall (21) and a clamping slider (32) that can move under the action of the elastic push switch (31). The clamping slider (32) and the second side wall (22) form a clamping space that can accommodate the electrode (200). The clamping slider (32) can move closer to or further away from the second side wall (22) under the action of the elastic push switch (31) to clamp or release the electrode (200). The clamping slider (32) includes a clamping part (321) having a clamping surface parallel to the second sidewall (22); and a sliding connection part (322) adapted to be connected to the elastic push switch (31) and movable along a preset guide rail on the handle assembly (2) toward or away from the second sidewall (22). The elastic push-button switch (31) includes a push-button (311), which includes a push-button end (3111) located outside the first sidewall (21) and a connecting end (3112) adapted to extend into the first sidewall (21) and connect to the clamping slider (32); and an elastic reset member (312) disposed between the push-button (311) and the first sidewall (21), which is adapted to apply a force to the push-button (311) to move in a direction away from the second sidewall (22). A limiting protrusion structure (24) is provided on the second sidewall (22) at the position corresponding to the clamping part (321). The height of the limiting protrusion structure (24) relative to the second sidewall (22) is less than the diameter of the electrode (200).

2. The electrode fixing device according to claim 1, characterized in that, The landing base (1) includes: The base body (11) is made of high-density material; Foot groove (12) is formed on the base body (11) and includes an inclined foot surface that is gradually inclined upward from one side edge of the base body (11).

3. The electrode fixing device according to claim 1, characterized in that, The ground support pole assembly (5) includes: The longitudinal telescopic support rod (51) includes an outer rod (511) fixedly mounted on the ground base (1) and an inner rod (512) telescopically mounted inside the outer rod (511).

4. The electrode fixing device according to claim 3, characterized in that, The longitudinal telescopic support rod (51) also includes: The connecting sleeve (513) is fitted onto the upper end of the outer sleeve rod (511) and is threadedly connected to the outer sleeve rod (511); The support rod fixing member (514) includes a threaded connection section (5131) adapted to be threadedly connected to the outer sleeve (511) and a clearance fit section (5132) located above the threaded connection section (5131). The support rod fixing member (514) is installed on the clearance fit section (5132) and is adapted to fix the inner retracting rod (512) when the longitudinal telescopic support rod (51) is adjusted to a preset height.

5. The electrode fixing device according to claim 3, characterized in that, The ground support assembly (5) also includes: A transverse support rod (52) is connected at one end to the upper end of the inward-retracting rod (512); An adjusting arm (53) is disposed at the other end of the transverse support (52) and is movable axially and / or circumferentially rotated along the transverse support (52), and the handle assembly (2) is mounted on the adjusting arm (53).

6. The electrode fixing device according to claim 5, characterized in that, The ground support assembly (5) also includes: The adapter (54) is adapted to connect the inner retractor (512) and the transverse support (52). The adapter (54) includes an adapter body (541) and a longitudinal through hole (542) and a horizontal through hole (543) formed on the adapter body (541). The upper end of the inner retractable rod (512) is adapted to be inserted into the longitudinal perforation (542), and one end of the transverse support rod (52) is adapted to be inserted into the horizontal perforation (543). The height of the adapter (54) on the inner retractable rod (512) and / or the insertion distance of the transverse support rod (52) are adjustable.

7. The electrode fixing device according to any one of claims 1-6, characterized in that, The handle assembly (2) includes a front handle shell (25) and a rear handle shell (26). The rear handle shell (26) has a cavity inside. The front handle shell (25) is fastened to the rear handle shell (26) to form a receiving chamber that can accommodate and limit the clamping slider (32). The handle rear shell (26) includes a first side wall (21) and a second side wall (22) and a third side wall (261) connected between the first side wall (21) and the second side wall (22). The third side wall (261) is disposed opposite to the handle front shell (25) and is provided with a clearance opening (262) suitable for the electrode (200) to pass through.

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