Electrode connecting device and electrical stimulation system

Abstract

The invention relates to an electrode connecting device and an electrical stimulation system. The electrode connecting device comprises a shell, a conducting piece and an operating piece, the shell is provided with an electrode mounting cavity, the conducting piece is movably arranged in the shell and provided with an electrode clamping part and a plug connecting part which are electrically connected, and the operating piece is movably arranged on the shell and provided with a plug connecting part. The operating part can drive the conducting part to move towards the electrode mounting cavity until the electrode clamping part extends into the electrode mounting cavity when being shifted, a first locking part is arranged in the shell, a second locking part is arranged on the operating part, and when the electrode clamping part is located in the electrode mounting cavity, the second locking part is matched with the first locking part to lock the conducting part in the shell. According to the electrode connecting device, the electrical connection between the stimulating electrode and the stimulator can be conveniently and quickly realized, the firm and reliable connection between the stimulating electrode and the electrode connecting device can be ensured, and the problem of poor electrical contact between the stimulating electrode and the electrode connecting device is avoided.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to an electrode connection device and an electrical stimulation system. Background Art

[0002] Deep brain stimulation (DBS) refers to a minimally invasive neurosurgical method that implants stimulating electrodes at specific target points in the brain for high-frequency electrical stimulation, thereby regulating the excitability of corresponding neural nuclei to achieve therapeutic purposes. It can be used to treat movement disorders such as Parkinson's disease, essential tremor, dystonia, intractable hiccups, etc.

[0003] During the operation, after the stimulation electrode is placed, in order to determine whether the electrode position reaches the target, it is necessary to connect the stimulation electrode to the intraoperative stimulator through an electrode connection device for test stimulation. After the test stimulation is completed, the stimulation electrode will be connected to the extension wire, and one end of the extension wire will be implanted outside the body after suturing. After the operation, in order to verify the therapeutic effect, the electrode connection device is also needed to connect the extension wire to the test stimulator for a period of time for evaluation testing. However, the existing electrode connection device cannot effectively clamp the stimulation electrode or the extension wire, and poor electrical contact is prone to occur. Summary of the invention

[0004] Based on this, it is necessary to provide an electrode connection device and an electrical stimulation system to address the problem that the existing electrode connection device cannot clamp the stimulation electrode or the extension wire, which easily leads to poor electrical contact.

[0005] An electrode connection device, characterized in that it comprises: a housing, a conducting member and an operating member, wherein the housing has an electrode installation cavity, the conducting member is movably arranged in the housing, the conducting member is provided with an electrode clamping portion and a plug connecting portion which are electrically connected, the operating member is movably arranged on the housing, and when the operating member is moved, the conducting member can be driven to move toward the electrode installation cavity until the electrode clamping portion extends into the electrode installation cavity;

[0006] Wherein, a first locking portion is arranged in the shell, and a second locking portion is arranged on the operating member. When the electrode clamping portion is located in the electrode mounting cavity, the second locking portion cooperates with the first locking portion to lock the conductive member in the shell.

[0007] In one embodiment, the conductive member has a first driving surface near the operating member, and the operating member has a second driving surface near the conductive member, and the second driving surface can cooperate with the first driving surface to push the conductive member to move when the operating member moves, wherein the movement direction of the operating member is perpendicular to or the same as the movement direction of the conductive member.

[0008] In one embodiment, the first driving surface and the second driving surface are curved surfaces or inclined surfaces.

[0009] In one embodiment, the conductive member further comprises a first reinforcement surface adjacent to the first driving surface near the operating member, and the operating member further comprises a second reinforcement surface adjacent to the second driving surface near the conductive member;

[0010] Wherein, when the electrode clamping portion is located in the electrode mounting cavity, the second reinforcement surface abuts against the first reinforcement surface.

[0011] In one embodiment, the first reinforcement surface and the second reinforcement surface are planes arranged along the movement direction of the operating member.

[0012] In one embodiment, the first locking portion is a locking groove, and the second locking portion is a locking protrusion; or, the first locking portion is a locking protrusion, and the second locking portion is a locking groove;

[0013] The locking protrusion can be clamped in the locking groove.

[0014] In one embodiment, the housing further comprises a first disassembly and assembly guide surface adjacent to the first locking portion, and the operating member further comprises a second disassembly and assembly guide surface adjacent to the second locking portion and capable of cooperating with the first disassembly and assembly guide surface.

[0015] In one embodiment, the electrode connecting device also includes an auxiliary handle, which includes a connected gripping portion and an installation portion, and the installation portion can be accommodated in the electrode installation cavity. The installation portion has a communicating electrode clamping groove and a first avoidance opening, and the first avoidance opening is used for the electrode clamping portion to pass through.

[0016] In one embodiment, the height of the holding portion is greater than the height of the mounting portion, the height of the holding portion is greater than the depth of the electrode mounting cavity, and the height of the mounting portion is equal to or less than the depth of the electrode mounting cavity.

[0017] In one embodiment, the electrode mounting cavity is formed by an inward depression of the shell wall of the shell, wherein the inwardly depressed portion of the shell wall has a second avoidance opening communicating with the electrode mounting cavity, and the second avoidance opening is used for the electrode clamping portion to pass through.

[0018] In one of the embodiments, a supporting portion is further provided in the outer shell, and the supporting portion has a communicating accommodating groove and a third avoidance opening, the accommodating groove is used to accommodate the recessed portion of the shell wall, the third avoidance opening is aligned with the second avoidance opening, and the second avoidance opening is used for the electrode clamping portion to pass through.

[0019] In one of the embodiments, the electrode clamping portion includes a plurality of spaced-apart clamping springs, and the clamping springs can sequentially pass through the corresponding third avoidance opening and the corresponding second avoidance opening and extend into the electrode mounting cavity.

[0020] In one embodiment, the conductive member further includes a first shell, a second shell and a circuit board, the first shell is connected to the second shell, and the circuit board is arranged in a space enclosed by the first shell and the second shell;

[0021] The first shell has a first window and a second window, the electrode clamping portion and the plug connecting portion are arranged on the circuit board, and the electrode clamping portion extends out of the first window, and the plug connecting portion is exposed to the second window.

[0022] In one of the embodiments, the electrode connecting device further comprises an elastic member, two ends of which are respectively against the housing and the conductive member, and the elastic member is used to provide a force for the conductive member to move in a direction away from the electrode mounting cavity.

[0023] In one embodiment, the elastic member is a spring or a spring.

[0024] In one embodiment, the electrode connecting device also includes a plug, which is electrically connected to the plug connecting part through a test cable, and is provided with a plurality of first conductive pins and at least one second conductive pin, the first conductive pins and the second conductive pins are arranged in a matrix, and the axial length of the second conductive pin exposed to the external environment is shorter than the axial length of the first conductive pin exposed to the external environment.

[0025] In one embodiment, the number of the second conductive needles is 2, and the two second conductive needles are located at two ends of a diagonal line of the matrix.

[0026] An electrical stimulation system, comprising: a stimulation electrode, a stimulator and an electrode connection device as described in any one of the above items;

[0027] The stimulator can be electrically connected to the plug connection part of the electrode connection device through a plug, and at least a part of the stimulation electrode can be accommodated in the electrode installation cavity of the electrode connection device and electrically connected to the electrode clamping part of the electrode connection device.

[0028] The above-mentioned electrode connecting device and electrical stimulation system can conveniently and quickly realize the electrical connection between the stimulation electrode and the stimulator, and can also ensure that the connection between the stimulation electrode and the electrode connecting device is firm and reliable, avoiding the problem of poor electrical contact between the stimulation electrode and the electrode connecting device. The structure of the electrode connecting device is also simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the three-dimensional structure of an electrode connection device according to an embodiment of the present application.

[0030] Figure 2 for Figure 1 Exploded schematic diagram of the provided electrode connection device.

[0031] Figure 3 A schematic diagram of the three-dimensional structure of another electrode connection device equipped with stimulation electrodes according to an embodiment of the present application.

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the auxiliary handle of an embodiment of the present application.

[0033] Figure 5 for Figure 1 Schematic diagram of the assembly between the auxiliary handle and the stimulation electrodes provided.

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of a conductive component according to an embodiment of the present application.

[0035] Figure 7 This is a schematic diagram of the three-dimensional structure of the front shell provided in an embodiment of the present application as viewed from the perspective of the rear shell.

[0036] Figure 8 This is a schematic diagram of the three-dimensional structure of the rear shell provided in an embodiment of the present application as viewed from the perspective of the front shell.

[0037] Fig. 9 A front view of an electrode connection device provided in an embodiment of the present application when the stimulation electrode is in a disengaged state.

[0038] Fig.10 The electrode connection device provided in the embodiment of the present application is Fig. 9 Cross-sectional view at AA.

[0039] Fig.11 A front view of an electrode connection device provided in an embodiment of the present application when a stimulation electrode is in a clamped state.

[0040] Fig.12 The electrode connection device provided in the embodiment of the present application is Fig. 9 Cross-sectional view at BB.

[0041] Fig.13 A schematic diagram of the three-dimensional structure of the internal components of the conductive piece provided in an embodiment of the present application.

[0042] Fig.14 A schematic diagram of the three-dimensional structure of the conductive component provided in an embodiment of the present application viewed from a first angle.

[0043] Fig.15 A schematic diagram of the three-dimensional structure of the operating member provided in an embodiment of the present application viewed from a first angle.

[0044] Fig.16 A schematic diagram of the three-dimensional structure of the operating member provided in an embodiment of the present application as viewed from a second angle.

[0045] Fig.17 Provided in the embodiments of this application Fig.18 A local enlarged schematic diagram at point C.

[0046] Fig.18 A schematic diagram of the coordination of various components within an electrode connection device provided in an embodiment of the present application.

[0047] Fig.19 This is a schematic diagram of the coordination of various components in another electrode connection device provided in an embodiment of the present application. It should be noted that in order to show the positional relationship between the operating member and the conductive member, Fig.19 The operating parts have not been removed.

[0048] Fig. 20 A schematic diagram of the internal structure of a connector provided in an embodiment of the present application.

[0049] Fig.21 A schematic diagram of the arrangement of the first conductive needles and the second conductive needles provided in an embodiment of the present application.

[0050] Fig. 22 A schematic diagram of the partial structure of the electrical stimulation system provided in an embodiment of the present application.

[0051] The reference numerals in the accompanying drawings are described as follows:

[0052] 10. Electrode connection device; 100. Shell; 100a. Electrode installation cavity; 110. First locking portion; 100b. First disassembly guide surface; 100c. Second avoidance opening; 100d. Accommodation cavity; 100e. Limiting groove; 120. Support portion; 120a. Accommodation groove; 120b. Third avoidance opening; 130. Front shell; 140. Back shell; M. First identification symbol; N. Second identification symbol; 140. First limiting rib; 150. Second limiting rib; 160. Third limiting rib; 170. Fourth limiting rib; 190, 200. Conducting member; 210. Electrode clamping portion; 211. Retaining spring; 220. Plug connection portion; 200a. First driving surface; 200b. First reinforcement surface; 230, first shell; 231, enclosure; 240, second shell; 241, driving protrusion; 250, circuit board; 300, operating member; 310, second locking portion; 300a, second driving surface; 300b, second reinforcement surface; 300c, second disassembly and assembly guide surface; 320, toggle portion; 330, driving portion; 400, auxiliary handle; 410, gripping portion; 420, mounting portion; 420a, electrode slot; 420b, first avoidance opening; 500, elastic member; 600, plug; 610, first conductive needle; 620, second conductive needle; 700, cable; 710, wire; 720, insulating sleeve; 730, extension sleeve; 730a, hollow groove; 20, stimulation electrode; 30, stimulator. DETAILED DESCRIPTION

[0053] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0054] See also Figure 1 and Figure 2, this embodiment provides an electrode connection device 10. The electrode connection device 10 comprises: a housing 100, a conducting member 200 and an operating member 300; the housing 100 has an electrode installation cavity 100a; the conducting member 200 is movably arranged in the housing 100, and the conducting member 200 is provided with an electrode clamping portion 210 and a plug connection portion 220 which are electrically connected, and the electrode clamping portion 210 is arranged opposite to the electrode installation cavity 100a; the operating member 300 is movably arranged on the housing 100, and when the operating member 300 is operated, it can drive the conducting member 200 to move toward the electrode installation cavity 100a; wherein the operating member 300 is provided with a second locking portion 310, and when the electrode clamping portion 210 is located in the electrode installation cavity 100a, the second locking portion 310 cooperates with the first locking portion 110 to lock the conducting member 200 in the housing 100.

[0055] The electrode connection device 10 can be applied to the fields of deep brain electrical stimulation, spinal electrical stimulation, etc., and is mainly used to electrically connect the stimulation electrode 20 or the extension wire to the stimulator 30 in the external environment, so as to perform corresponding stimulation tests. Figure 3 FIG. 1 is a schematic diagram showing the installation of the stimulation electrode 20 on the electrode connection device 10. The following describes the use of the electrode connection device 10 by taking the stimulation electrode 20 as an example. It should be noted that: Figure 3 The straight double arrow in represents the movement direction of the operating member 300 .

[0056] When it is necessary to electrically connect the stimulation electrode 20 to a stimulator in an external environment through the electrode connection device 10, at least a portion of the stimulation electrode 20 (for example, the electrode portion at the end) can be first placed in the electrode mounting cavity 100a of the housing 100, and the stimulator can be electrically connected to the plug connection portion 220 on the conductive member 200 through the plug 600; then, the operating member 300 of the electrode connection device 10 is moved, and the operating member 300 drives the conductive member 200 to move toward the electrode mounting cavity 100a during the movement until the conductive member 200 is electrically connected to the conductive member 200. The electrode clamping portion 210 on the operating member 300 extends into the electrode installation cavity 100a to clamp the stimulation electrode 20, thereby realizing the electrical connection between the stimulation electrode 20 and the stimulator 30; at this time, the second locking portion 310 on the operating member 300 also cooperates with the first locking portion 110 in the housing 100 to lock the conductive member 200 in the housing 100, so as to avoid the conductive member 200 from shaking in the housing 100 during the test stimulation process, thereby preventing the poor electrical contact between the stimulation electrode 20 and the conductive member 200. After the stimulation test is completed, the first locking portion 110 and the second locking portion 310 are unlocked, and the conductive member 200 and the operating member 300 are reset.

[0057] It can be seen that the electrode connecting device 10 provided in the present application can conveniently and quickly realize the electrical connection between the stimulation electrode 20 and the stimulator 30, and can also ensure that the connection between the stimulation electrode 20 and the electrode connecting device 10 is firm and reliable, avoiding the problem of poor electrical contact between the stimulation electrode 20 and the electrode connecting device 10, and the structure of the electrode connecting device 10 is also simple and easy to implement.

[0058] The stimulation electrode 20 is small in size, which is not convenient for the operator to hold, thereby affecting the disassembly process of the stimulation electrode 20 on the electrode connection device 10. Figures 3 to 5 The electrode connection device 10 also includes an auxiliary handle 400; the auxiliary handle 400 includes a connected gripping portion 410 and a mounting portion 420, the mounting portion 420 can be accommodated in the electrode mounting cavity 100a, and the mounting portion 420 has an electrode clamping groove 420a. The operator can first clamp the end of the stimulation electrode 20 into the electrode clamping groove 420a of the mounting portion 420 of the auxiliary handle 400, and then hold the gripping portion 410 of the auxiliary handle 400 to put the end of the stimulation electrode 20 into the electrode mounting cavity 100a of the housing 100; when the stimulation test is completed, the operator can directly hold the gripping portion 410 of the auxiliary handle 400 to take the end of the stimulation electrode 20 out of the electrode mounting cavity 100a.

[0059] Among them, see Figure 4 The mounting portion 420 has a first avoidance opening 420b that communicates with the electrode clamping slot 420a. The first avoidance opening 420b is used for the electrode clamping portion 210 to pass through. The electrode clamping portion 210 of the conductive member 200 can pass through the first avoidance opening 420b to clamp the stimulation electrode 20 in the electrode clamping slot 420a. The number and arrangement of the first avoidance openings 420b are related to the structure of the electrode clamping portion 210 of the conductive member 200. As an example, see Figure 6 The electrode clamping portion 210 includes a plurality of clamping springs 211, which are arranged in a direction perpendicular to the movement direction of the conductive member 200; the number and arrangement of the first avoidance openings 420b and the clamping springs 211 are the same, and the first avoidance openings 420b correspond to the clamping springs 211 one by one, that is, one first avoidance opening 420b allows one clamping spring 211 to pass through.

[0060] In order to facilitate the operator's grip, the height of the grip portion 410 of the auxiliary handle 400 is greater than the height of the mounting portion 420, and the height of the grip portion 410 is greater than the depth of the electrode mounting cavity 100a. In addition, in order to ensure that the clamping spring 211 can clamp the stimulation electrode 20, the height of the mounting portion 420 is equal to or less than the depth of the electrode mounting cavity 100a. It should be noted that the height direction of the grip portion 410 and the mounting portion 420 is Figure 4 The height direction shown shall prevail.

[0061] See also Figure 2 In this embodiment, the housing 100 may include a front housing 130 and a rear housing 140, and the front housing 130 may be connected to the rear housing 140 by means of buckles, screws, etc. The electrode installation cavity 100a is provided on the front housing 130, and the conductive member 200 is provided in a space formed by the front housing 130 and the rear housing 140. During the stimulation test, the rear housing 140 may be directly attached to the patient's skin.

[0062] The outer surface of the front shell 130 is provided with a marking area, and the marking area has a marking symbol, which is used to indicate the working state of the stimulation electrode 20, that is, Fig. 9 and Fig.10 The clamping state shown is similar to Fig.11 and Fig.12 Specifically, the identification area has a first identification symbol M and a second identification symbol N, and the first marking symbol A can be Fig. 9 and Fig.11 The unlocking pattern shown is used to indicate that the stimulation electrode 20 is in a disengaged state, that is, it is not clamped by the conductive member 200. The second identification symbol N can be Fig.10 and Fig.12 The locking pattern shown is used to indicate that the stimulation electrode 20 is in a clamped state, that is, it is clamped by the conductive member 200. The operating member 300 can be Fig. 9 and Fig.11 The first position is aligned with the first identification symbol M, and the second position is aligned with the second identification symbol N; when the operating member 300 moves to the first position, the electrode clamping portion 210 of the conductive member 200 does not extend into the electrode installation cavity 100a, that is, the conductive member 200 does not clamp the stimulation electrode 20; when the operating member 300 moves to the second position, the electrode clamping portion 210 of the conductive member 200 extends into the electrode installation cavity 100a, thereby clamping the stimulation electrode 20. It should be noted that Fig.12 The arrow in represents the clamping direction of the electrode clamping portion 210 on the stimulation electrode 20 .

[0063] See also Figures 1 to 3 In this embodiment, the electrode installation cavity 100a is formed by the inward depression of the shell wall of the shell 100. In this way, the electrode installation cavity 100a can be set outside the shell 100, and the operator can directly hold the auxiliary handle 400 to put the stimulation electrode 20 into the electrode installation cavity 100a, which is convenient for the disassembly and assembly of the stimulation electrode 20 in the electrode connection device 10. Among them, the electrode installation cavity 100a is formed by the depression of the front shell 130.

[0064] Among them, see Figure 7The inwardly concave portion of the shell wall has a second avoidance opening 100c that communicates with the electrode installation cavity 100a, and the second avoidance opening 100c is used for the electrode clamping portion 210 to pass through. The electrode clamping portion 210 of the conductive member 200 can pass through the second avoidance opening 100c and the first avoidance opening 420b in sequence to clamp the stimulation electrode 20 in the electrode clamping groove 420a. It should be noted that the depth of the electrode installation cavity 100a mentioned above refers to Figure 7 The depth of the inward depression of a portion of the shell wall of the middle shell 100. It can be understood here that the inward depression of the shell wall of the front shell 130 is concave relative to the outer surface of the front shell 130, and is convex relative to the inner surface of the front shell 1300 (i.e., the surface close to the rear shell 14).

[0065] The number and arrangement of the second avoidance openings 100c are related to the structure of the electrode clamping portion 210 of the conductive member 200. For example, see Figure 6 The electrode clamping portion 210 includes a plurality of clamping springs 211, which are arranged in a direction perpendicular to the movement direction of the conductive member 200; the number and arrangement of the second avoidance openings 100c and the clamping springs 211 are the same, and the second avoidance openings 100c correspond to the clamping springs 211 one by one, that is, one second avoidance opening 100c allows one clamping spring 211 to pass through. It should be noted that the second avoidance opening 100c is aligned with the corresponding first avoidance opening 420b.

[0066] See also Figure 3 The electrode installation cavity 100a can penetrate one end of the housing 100. The penetrated area can prevent the stimulation electrode 20 from being bent significantly after being placed in the electrode installation cavity 100a, thereby protecting the stimulation electrode 20. Figure 3 The shell wall of the housing 100 may continue to be recessed inward along the setting direction of the electrode installation cavity 100a to form an accommodating cavity 100d for accommodating the gripping portion 410.

[0067] Further, in order to improve the installation firmness of the stimulation electrode 20 on the electrode connection device 10, see Figure 8In this embodiment, a support portion 120 is further provided in the housing 100, and the support portion 120 can support the recessed portion 180 of the housing wall. The support portion 120 has a communicating receiving groove 120a and a third avoidance opening 120b, the receiving groove 120a is used to receive the recessed portion 180 of the housing wall, the third avoidance opening 120b is aligned with the second avoidance opening 100c, and the second avoidance opening 100c is used for the electrode clamping portion 210 to pass through. The electrode clamping portion 210 of the conductive member 200 can pass through the third avoidance opening 120b, the second avoidance opening 100c, and the first avoidance opening 420b in sequence to clamp the stimulation electrode 20 in the electrode clamping groove 420a. The support portion 120 is provided on the inner wall of the rear housing 140.

[0068] The number and arrangement of the third avoidance openings 120b are related to the structure of the electrode clamping portion 210 of the conductive member 200. As an example, see Figure 6 The electrode clamping portion 210 includes a plurality of clamping springs 211, which are arranged in a direction perpendicular to the movement direction of the conductive member 200; the clamping spring 211 has an inner concave portion (not marked, such as Fig.10 ) and can sequentially pass through the corresponding third avoidance opening 120b and the corresponding second avoidance opening 100c and extend into the electrode installation cavity 100a. The number and arrangement of the third avoidance openings 120b and the clip spring 211 are the same, and the second avoidance openings 100c correspond to the clip spring 211 one by one, that is, one third avoidance opening 120b allows one clip spring 211 to pass through. It should be noted that the third avoidance opening 120b is aligned with the corresponding first avoidance opening 420b and the second avoidance opening 100c.

[0069] The conductive member 200 is used to electrically connect the stimulation electrode 20 to the stimulator 30, see Figure 6 The conductive member 200 may include a first housing 230, a second housing 240 and Fig.13 The circuit board 250 shown, the first shell 230 and the second shell 240 are connected, the circuit board 250 is arranged in the space enclosed by the first shell 230 and the second shell 240, the first shell 230 is respectively provided with a first window and a second window at both ends, the electrode clamping part 210 and the plug connecting part 220 are arranged on the two ends of the circuit board 250, and the electrode clamping part 210 extends to the outside of the first window, and the plug connecting part 220 is exposed to the second window.

[0070] The number and arrangement of the first windows are related to the structure of the electrode clamping portion 210. For example, see Figure 6The electrode clamping portion 210 includes a plurality of clamping springs 211, which are arranged in a direction perpendicular to the movement direction of the conductive member 200; the number and arrangement of the first windows and the clamping springs 211 are the same, and the first windows correspond one-to-one to the clamping springs 211, that is, one first window allows one clamping spring 211 to extend.

[0071] Understandably, the stimulator Figure 1 and Figure 2 The plug 600 shown is electrically connected to the plug connection portion 220 of the conductive member 200, and the plug 600 is electrically connected to the plug connection portion 220 via a test cable 700. Figure 6 A surrounding plate 231 is provided around the second window, and the surrounding plate 231 can sort out the test cables 700 around the second window to avoid the test cables 700 being in a disorderly manner.

[0072] The electrode clamping portion 210 and the circuit board 250 , the test cable 700 and the circuit board 250 , and the first housing 230 and the second housing 240 are all connected by welding. It should be noted that the plug connection portion 220 may be a part of the circuit board 250 .

[0073] Regarding how the conductive member 200 moves toward the electrode installation cavity 100a under the drive of the operating member 300, one method is given as follows: the conductive member 200 has a Fig.14 The first driving surface 200a shown in the figure has a portion of the operating member 300 near the conductive member 200. Fig.15 and Fig.16 The second driving surface 300 a shown can cooperate with the first driving surface 200 a to push the conductive member 200 to move when the operating member 300 moves, wherein the movement direction of the operating member 300 is perpendicular to or the same as the movement direction of the conductive member 200 .

[0074] Considering the compactness of the internal structure of the electrode connection device 10, the movement direction of the operating member 300 is perpendicular to the movement direction of the conductive member 200. Among them, the first driving surface 200a and the second driving surface 300a are curved surfaces or inclined surfaces. When the operating member 300 is turned, the second driving surface 300a of the operating member 300 will also move accordingly. Since the first driving surface 200a and the second driving surface 300a are curved surfaces or inclined surfaces, not flat surfaces, the first driving surface 200a will avoid the movement of the second driving surface 300a, thereby moving itself in a direction away from the first driving surface 200a, that is, the conductive member 200 moves toward the electrode mounting cavity 100a. It should be noted that Fig.17 for Fig.18 A local enlarged schematic diagram at point C.

[0075] It is understandable that the first driving surface 200a and the second driving surface 300a are either curved surfaces with complementary curvatures or Fig.17 The inclined planes shown have the same inclination angle.

[0076] As an example, see Fig.14 A driving protrusion 241 is provided on the outer wall of the second shell 240 of the conducting member 200 , and the first driving surface 200 a is provided on the side wall of the driving protrusion 241 away from the first shell 230 .

[0077] In order to enable the conductive member 200 to move along a predetermined direction (i.e., a direction perpendicular to the movement direction of the operating member 300), see Fig.18 A first limiting rib 140 and a second limiting rib 150 are arranged in the housing 100 along the movement direction of the operating member 300. The first limiting rib 140 and the second limiting rib 150 are located on both sides of the conductive member 200 to limit the sliding range of the conductive member 200 in the movement direction of the operating member 300.

[0078] Further, Fig.14 The end of the conductive member 200 close to the operating member 300 further includes a first reinforcing surface 200b adjacent to the first driving surface 200a. Fig.15 The end of the operating member 300 shown near the conductive member 200 also has a second reinforcing surface 300b adjacent to the second driving surface 300a; wherein, when the electrode clamping portion 210 is located in the electrode installation cavity 100a, the second reinforcing surface 300b abuts against the first reinforcing surface 200b. Through the cooperation between the second reinforcing surface 300b and the first reinforcing surface 200b, on the basis of the cooperation between the first locking portion 110 and the second locking portion 310, the conductive member 200 can be further prevented from shaking in the housing 100 during the test stimulation process.

[0079] The first reinforcement surface 200 b and the second reinforcement surface 300 b are planes arranged along the movement direction of the operating member 300 .

[0080] See also Fig.15 and Fig.16 In this application, the operating member 300 includes a toggle portion 320 and a driving portion 330 connected to each other. The toggle portion 320 is located outside the electrode connecting device 10, and the driving portion 330 is used to drive the conductive member 200 to move when the operating member 300 moves.

[0081] Striped protrusions are provided on the surface of the toggle portion 320 away from the driving portion 330 , so that an operator can apply force to the toggle portion 320 .

[0082] The driving portion 330 is provided with a second driving surface 300a on a surface away from the toggle portion 320. Figure 3 The double arrows shown point to movement, see Figure 3 A limiting groove 100e is provided on the inner wall of the housing 100, and the limiting groove 100e is provided in a direction perpendicular to the movement direction of the conducting member 200, and the driving part 330 can slide along the limiting groove 100e.

[0083] The second locking portion 310 is disposed on the surface of the driving portion 330 perpendicular to the toggle portion 320. Fig.16 The locking protrusion shown, the first locking portion 110 is Figure 8 Alternatively, the second locking portion 310 is a locking groove, and the first locking portion 110 is a locking protrusion; the locking protrusion can be clamped in the locking groove. When the electrode clamping portion 210 of the conductive member 200 extends into the electrode installation cavity 100a, the locking protrusion is clamped in the locking groove, and the conductive member 200 is locked.

[0084] As an example, the second locking portion 310 is a locking protrusion, and the first locking portion 110 is a locking groove. In this case, in order to ensure the strength of the housing 100, see Figure 8 A reinforcing protrusion 190 is provided in the housing 100 , and the reinforcing protrusion 190 is provided with a first locking portion 110 .

[0085] Considering the locking effect, two surfaces of the driving part 330 perpendicular to the toggle part 320 are each provided with a second locking part 310 , and the front shell 130 and the rear shell 140 of the housing 100 are each provided with a first locking part 110 .

[0086] Further, Figure 8 The housing 100 shown also has a first disassembly guide surface 100b adjacent to the first locking portion 110. Fig.16 The illustrated operating member 300 further includes a second disassembly guide surface 300c adjacent to the second locking portion 310 and adapted to cooperate with the first disassembly guide surface 100b. The second disassembly guide surface 300c can slide along the second disassembly guide surface 300c, so that the locking protrusion can be more easily inserted into the locking groove and can be more easily disengaged from the locking groove. The first disassembly guide surface 100b and the second disassembly guide surface 300c can be curved surfaces or Figure 8 and Fig.16 The inclined plane shown.

[0087] See also Figure 2 and Fig.18 In this embodiment, the electrode connection device 10 further includes an elastic member 500 disposed in the housing 100, and the elastic member 500 is used to provide the conductive member 200 with a direction away from the electrode installation cavity 100a (i.e. Fig.18When the operating member 300 moves from the first position to the second position, the conductive member 200 moves toward the electrode installation cavity 100a under the drive of the operating member 300, and the elastic member 500 is deformed; when the stimulation test is completed, the operating member 300 is reset, that is, the operating member 300 is moved from the second position to the first position, at which time the second locking portion 310 is no longer matched with the first locking portion 110, thereby releasing the lock on the conductive member 200, and the elastic member 500 is reset, thereby providing a force for the conductive member 200 to move in a direction away from the electrode installation cavity 100a, and the conductive member 200 moves in a direction away from the electrode installation cavity 100a under the action of the elastic member 500, thereby releasing the clamping of the stimulation electrode 20.

[0088] The elastic member 500 may be Fig.18 The shrapnel shown or Fig.19 The specific structure of the elastic member 500 can be set according to the installation position of the operating member 300, see Fig.18 When the operating member 300 is disposed in the side region of the electrode connection device 10, the elastic member 500 may be a spring sheet, the two ends of which respectively abut against the support portion 120 on the middle portion of the housing 100 and the conductive member 200, wherein the end of the spring sheet abutting against the conductive member 200 is curved to facilitate deformation of the spring sheet; see Fig.19 When the operating member 300 is disposed in the middle region of the electrode connection device 10, the elastic member 500 may be a spring, and the two ends of the spring are respectively against the side wall of the housing 100 and the conductive member 200. Fig.18 and Fig.19 The housing 100 shown is provided with a third limiting rib 160 , which is used to limit the elastic member 500 so that the elastic member 500 can effectively provide a force to the conductive member 200 .

[0089] See also Figure 1 and Figure 2 In this embodiment, the electrode connection device 10 further includes a plug 600, and the plug 600 is electrically connected to the plug connection portion 220 through the test cable 700. The external stimulator 30 can be electrically connected to the plug connection portion 220 of the conductive member 200 through the plug 600.

[0090] Plug 600 can be national standard aviation plug 600 or Fig. 20 and Fig.21 The non-GB aviation plug 600 shown, wherein the conductive pins in the GB aviation plug 600 are arranged in a matrix and the axial lengths exposed to the external environment are consistent; and Fig. 20 and Fig.21The non-GB aviation plug 600 shown is provided with a plurality of first conductive pins 610 and at least one second conductive pin 620, the first conductive pins 610 and the second conductive pins 620 are arranged in a matrix, and the axial length of the second conductive pin 620 exposed to the external environment is less than the axial length of the first conductive pin 610 exposed to the external environment. When the stimulator 30 is accidentally disconnected from the plug 600, the second conductive pin 620 of the plug 600 will be detached first, and the test cable 700 on the electrode connection device 10 will be immediately powered off to ensure that there will be no excessive instantaneous current, thereby preventing harm to the patient.

[0091] Among them, see Fig. 20 and Fig.21 , the number of the second conductive pins 620 is 2, and the two second conductive pins 620 are located at the two ends of the matrix diagonal. With such a configuration, the force balance of the plug 600 can be ensured and the plug 600 can be prevented from shaking under the premise of a minor modification of the national standard aviation plug 600. It should be noted that when there are multiple second conductive pins 620, the second conductive pins 620 are electrically connected to each other through wires.

[0092] Cable 700 may be Fig.18 The figure shows a wire 710 and an insulating sleeve 720 wrapped around the wire 710. One end of the wire 720 passes through the insulating slot and is electrically connected to the plug connection portion 220 of the conductive member 200. An extension sleeve 730 is provided at one end of the insulating sleeve 710 close to the housing 100. The extension sleeve 730 has a plurality of hollow slots 730a so that the extension sleeve 730 can be slightly bent. Fig.18 A fourth limiting rib 170 is disposed in the housing 100 , and the fourth limiting rib 170 can be inserted into the hollow groove 730 a of the extension sleeve, thereby fixing the cable 700 .

[0093] In the present application, the number of the operating member 300, the conducting member 200 and the electrode mounting cavity 100a can all be 2. Fig.18 The electrode installation cavity 100a is arranged at the two sides of the housing 100. In this case, the electrode installation cavity 100a is arranged at the middle area of ​​the housing 100. The operating member 300 can also be seen. Fig.19 The electrode installation cavity 100a is arranged in the middle area of ​​the front side of the housing 100. In this case, the electrode installation cavity 100a is arranged on both sides of the housing 100. It should be noted that the front side of the housing 100 refers to the side of the housing 100 away from the patient's skin.

[0094] On the other hand, the present application also provides an electrical stimulation system, see Fig. 22The electrical stimulation system includes: a stimulation electrode 20, a stimulator 30 and an electrode connecting device 10 as described in any of the above items; the stimulator 30 can be electrically connected to the plug connecting part 220 of the electrode connecting device 10 through a plug 600, and at least a part of the stimulation electrode 20 can be accommodated in the electrode mounting cavity 100a of the electrode connecting device 10 and electrically connected to the electrode clamping part 210 of the electrode connecting device 10.

[0095] The stimulator 30 can be electrically connected to different numbers of stimulation electrodes 20 through one or more electrode connection devices 10 according to the requirements of the stimulation test. Fig. 22 The stimulator 30 shown is connected to two electrode connection devices 10 .

[0096] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An electrode connection device, characterized in that: include: A housing, a conducting member and an operating member, wherein the housing has an electrode mounting cavity, the conducting member is movably disposed in the housing, the conducting member is provided with an electrode clamping portion and a plug connecting portion which are electrically connected, the operating member is movably disposed on the housing, and when the operating member is operated, the conducting member can be driven to move toward the electrode mounting cavity until the electrode clamping portion extends into the electrode mounting cavity; Wherein, a first locking portion is arranged in the shell, and a second locking portion is arranged on the operating member. When the electrode clamping portion is located in the electrode mounting cavity, the second locking portion cooperates with the first locking portion to lock the conductive member in the shell.

2. The electrode connection device according to claim 1, characterized in that: The conductive member has a first driving surface near the operating member, and the operating member has a second driving surface near the conductive member, and the second driving surface can cooperate with the first driving surface to push the conductive member to move when the operating member moves, wherein the movement direction of the operating member is perpendicular to or the same as the movement direction of the conductive member.

3. The electrode connection device according to claim 2, characterized in that: The first driving surface and the second driving surface are curved surfaces or inclined surfaces.

4. The electrode connection device according to claim 2, characterized in that: The conductive member further comprises a first reinforcement surface adjacent to the first driving surface near the operating member, and the operating member further comprises a second reinforcement surface adjacent to the second driving surface near the conductive member; Wherein, when the electrode clamping portion is located in the electrode mounting cavity, the second reinforcement surface abuts against the first reinforcement surface.

5. The electrode connection device according to claim 4, characterized in that: The first reinforcement surface and the second reinforcement surface are planes arranged along the movement direction of the operating member.

6. The electrode connection device according to claim 1, characterized in that: The first locking portion is a locking groove, and the second locking portion is a locking protrusion; or, the first locking portion is a locking protrusion, and the second locking portion is a locking groove; The locking protrusion can be clamped in the locking groove.

7. The electrode connection device according to claim 6, characterized in that: The housing further comprises a first disassembly and assembly guide surface adjacent to the first locking portion, and the operating member further comprises a second disassembly and assembly guide surface adjacent to the second locking portion and capable of cooperating with the first disassembly and assembly guide surface.

8. The electrode connection device according to claim 1, characterized in that: The electrode connecting device also includes an auxiliary handle, which includes a connected gripping portion and an installation portion. The installation portion can be accommodated in the electrode installation cavity. The installation portion has a communicating electrode clamping groove and a first avoidance opening, and the first avoidance opening is used for the electrode clamping portion to pass through.

9. The electrode connection device according to claim 8, characterized in that: The height of the holding portion is greater than the height of the mounting portion, the height of the holding portion is greater than the depth of the electrode mounting cavity, and the height of the mounting portion is equal to or less than the depth of the electrode mounting cavity.

10. The electrode connection device according to claim 1, characterized in that: The electrode installation cavity is formed by the inward depression of the shell wall of the shell, wherein the inwardly depressed portion of the shell wall has a second avoidance opening communicated with the electrode installation cavity, and the second avoidance opening is used for the electrode clamping portion to pass through.

11. The electrode connection device according to claim 10, characterized in that: A support portion is also provided in the shell, and the support portion has a communicating accommodating groove and a third avoidance opening, the accommodating groove is used to accommodate the recessed portion of the shell wall, the third avoidance opening is aligned with the second avoidance opening, and the second avoidance opening is used for the electrode clamping portion to pass through.

12. The electrode connection device according to claim 11, characterized in that: The electrode clamping portion includes a plurality of clamping springs arranged at intervals, and the clamping springs can sequentially pass through the corresponding third avoidance opening and the corresponding second avoidance opening and extend into the electrode installation cavity.

13. The electrode connection device according to any one of claims 1 to 12, wherein the conductive member further comprises a first shell, a second shell and a circuit board, the first shell is butted against the second shell, and the circuit board is disposed in a space enclosed by the first shell and the second shell; in, The first shell has a first window and a second window. The electrode clamping portion and the plug connecting portion are arranged on the circuit board. The electrode clamping portion extends out of the first window, and the plug connecting portion is exposed to the second window.

14. The electrode connection device according to any one of claims 1 to 12, characterized in that: The electrode connection device further comprises an elastic member, two ends of which are respectively against the housing and the conductive member, and the elastic member is used to provide a force for the conductive member to move in a direction away from the electrode installation cavity.

15. The electrode connection device according to any one of claims 1 to 12, characterized in that: The electrode connection device also includes a plug, which is electrically connected to the plug connection part through a test cable. The plug is provided with a plurality of first conductive pins and at least one second conductive pin, the first conductive pins and the second conductive pins are arranged in a matrix, and the axial length of the second conductive pin exposed to the external environment is shorter than the axial length of the first conductive pin exposed to the external environment.

16. The electrode connection device according to claim 15, characterized in that: The number of the second conductive needles is 2, and the two second conductive needles are located at two ends of a diagonal line of the matrix.

17. An electrical stimulation system, characterized in that: The electrical stimulation system comprises: a stimulation electrode, a stimulator and an electrode connection device as claimed in any one of claims 1 to 16; The stimulator can be electrically connected to the plug connection part of the electrode connection device through a plug, and at least a part of the stimulation electrode can be accommodated in the electrode installation cavity of the electrode connection device and electrically connected to the electrode clamping part of the electrode connection device.

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