CN217828635U - Nerve stimulation device - Google Patents

Abstract

The utility model relates to a nerve stimulation device. The nerve stimulation device comprises a shell, a stimulation circuit, a first feed-through, a first discharge electrode plate and a second discharge electrode plate, wherein the first feed-through is fixedly arranged on the side wall of the shell, a first conductive end of the first feed-through is positioned in a cavity of the shell and is connected with a first discharge end of the stimulation circuit, the first discharge electrode plate is connected with a second conductive end of the first feed-through in an insulating way, the second discharge electrode plate is arranged on the side wall and is connected with a second discharge end of the stimulation circuit, the first discharge electrode plate and the second discharge electrode plate can be used as discharge electrodes of the stimulation circuit to perform nerve stimulation operation, and the nerve stimulation device adopts at least one discharge end of the feed-through connection stimulation circuit, is simple in structure and is convenient to assemble.

Description

Nerve stimulation device

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a nerve stimulation device.

Background

With the recent increase of diabetes and nervous system injury diseases, the incidence of secondary related diseases such as Overactive bladder (OAB) has also increased year by year. Overactive bladder is a syndrome characterized by symptoms of urgency, often accompanied by symptoms of frequency and nocturia, with or without urge incontinence; urodynamics can be manifested as detrusor overactivity, but also other forms of urethro-bladder dysfunction, with overactive bladder having no clear etiology, excluding symptoms caused by acute urinary tract infections or other forms of bladder-urethral local lesions. Overactive bladder significantly affects the daily life and social activities of patients, and has become a disease that afflicts people. The currently preferred treatment methods are behavioral therapy and drug therapy, and the second-line nerve stimulation therapy is mainly adopted for drug-refractory and drug-resistant non-obstructive urinary retention and overactive bladder.

The present invention relates to a nerve stimulation device, and more particularly, to a nerve stimulation device for applying electrical stimulation to a target nerve (e.g., a tibial nerve) by generating an electric field after being implanted into a human body.

SUMMERY OF THE UTILITY MODEL

The utility model provides a nerve stimulation device, the structure is succinct, the assembly of being convenient for.

The utility model provides a nerve stimulation device includes:

a housing having a major surface and a sidewall connected to the major surface, the housing having a cavity;

a stimulation circuit positioned within the cavity, the stimulation circuit having first and second discharge ends of opposite polarity;

the first feed-through is fixedly arranged on the side wall and penetrates through the side wall, and a first conducting end of the first feed-through is positioned in the cavity and is connected with the first discharging end;

the first discharge electrode plate is connected with the second conductive end of the first feed-through, and the first discharge electrode plate is insulated from the shell; and

and the second discharge electrode plate is arranged on the side wall and is connected with the second discharge end.

Optionally, the neurostimulation device further comprises:

the insulating coating is arranged on the outer surface of the shell and exposes part of the side wall;

the second discharge end is connected with the shell, and the second discharge electrode plate is an exposed part of the side wall.

Optionally, the first discharge electrode tab and the second discharge electrode tab are oppositely disposed on the sidewall.

Optionally, the neurostimulation device further comprises:

the second feed-through is fixedly arranged on the side wall and penetrates through the side wall, a first conducting end of the second feed-through is located in the cavity and connected with the second discharging end, the second conducting end of the second feed-through is connected with the second discharging electrode plate, and the second discharging electrode plate is arranged in an insulating mode on the shell.

Optionally, the side wall is annular, and the first feedthrough and the second feedthrough are symmetrically disposed on the side wall.

Optionally, the first feedthrough includes the shell, sets up in insulating part and the seal wire of feedthrough in the shell, the seal wire of feedthrough is worn to locate in the insulating part and both ends expose, the both ends of the seal wire of feedthrough constitute first electrically conductive end with the second electrically conductive end.

Optionally, the housing of the first feedthrough has a mounting shoulder.

Optionally, a groove is formed in the side wall, the first discharge electrode pad is located in the groove, and the second conductive end of the first feedthrough extends into the groove; the nerve stimulation device further comprises an insulating rubber block positioned in the groove, and the second conductive end of the first feed-through penetrates through the insulating rubber block and is connected with the first discharge electrode plate.

Optionally, the nerve stimulation device includes at least two first discharge electrode pads and at least two second discharge electrode pads.

Optionally, all of the first discharge electrode tabs and the second discharge electrode tabs are uniformly disposed on the side wall.

The utility model provides an among the neurostimulation device, first feed through is at the fixed setting of casing lateral wall, and its first electrically conductive end is located the cavity of casing and is connected with the first end that discharges of stimulating circuit, first discharge electrode piece with the casing is insulating set up and with the electrically conductive end connection of second of first feed through, the second discharge electrode piece is located on the lateral wall and with stimulating circuit's second discharge end is connected, and first discharge electrode piece and second discharge electrode piece can regard as stimulating circuit's discharge electrode to carry out the neurostimulation operation, and this neurostimulation device adopts at least one end that discharges of feed through connection stimulating circuit, and the structure is succinct, the assembly of being convenient for.

Drawings

Fig. 1 is an implanted schematic view of a neurostimulation device according to an embodiment of the present invention.

Fig. 2 is a schematic view of a tibial nerve stimulation using a nerve stimulation apparatus according to an embodiment of the present invention.

Fig. 3 is an exploded view of a nerve stimulation device according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of a first feedthrough in an embodiment of the invention.

Fig. 5 is a schematic view of an upper housing of a neurostimulation device according to an embodiment of the present invention.

Fig. 6A to 6D are schematic diagrams illustrating the distribution of the positive electrode and the negative electrode on the side wall in the neurostimulation device according to the embodiment of the invention.

Description of reference numerals:

100-a nerve stimulation device; 10-skin; 20-program control instrument; 30-the tibial nerve; 101-a positive electrode; 102-a negative electrode; 103-electric field lines; 110-a housing; 111-upper surface; 112-lower surface; 113-a side wall; 113 a-a groove; 110 a-an upper housing; 110 b-a lower housing; 120-a first feedthrough; 120 a-a first conductive end; 120 b-a second conductive terminal; 121-a housing; 121 a-mounting a shaft shoulder; 122-an insulator; 123-a feedthrough guidewire; 130-a first discharge electrode sheet; 140-an assembly of batteries and electrical components; 150-a scaffold; 160-a second feedthrough; 170-a second discharge electrode sheet; 180-insulating glue block.

Detailed Description

The nerve stimulation device of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be understood that the drawings in the specification are in simplified form and are not to be taken in a precise scale, for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

The embodiment of the utility model provides a neural stimulation device is implanting human back, can form the electric field around the target nerve to amazing target nerve. The nerve stimulation device can be implanted into different positions in a human body according to treatment needs, and related diseases (such as epilepsy, overactive bladder or other applicable diseases) can be treated through the control of the in-vitro programmable controller. The following embodiments are mainly described by taking a nerve stimulation device for tibial nerve stimulation as an example.

Referring to fig. 1, in the embodiment of the present invention, theneurostimulation device 100 is an implantable type, and during treatment, it is implanted under theskin 10 and performs parameter setting through theexternal program controller 20, after setting the parameters, the stimulation circuit in theneurostimulation device 100 sends out the discharge signal according to the set parameters, and performs neurostimulation through the electrodes arranged on the surface of theneurostimulation device 100.

Referring to fig. 2, thepositive electrode 101 and thenegative electrode 102 on the surface of thenerve stimulation device 100 form a current loop through the human tissue under theskin 10, and thetibial nerve 30 can be stimulated by pulse discharge. In this embodiment, thepositive electrode 101 and thenegative electrode 102 are both disposed on the side of thenerve stimulation device 100. In operation, an electric field is formed between thepositive electrode 101 and thenegative electrode 102, as indicated byelectric field lines 103 in fig. 1. Thetibial nerve 30 is stimulated by the electric field.

Referring to fig. 2 and 3, theneurostimulation device 100 in the embodiment of the invention comprises ahousing 110, a stimulation circuit, afirst feedthrough 120, a firstdischarge electrode pad 130 and a seconddischarge electrode pad 170; wherein, thehousing 110 has a main surface (specifically, may include an upper surface 111 and a lower surface 113) and asidewall 113 connected to the main surface; thehousing 110 has a cavity within which the stimulation circuit is located, the stimulation circuit having first and second discharge ends of opposite polarity.

Thehousing 110 is, for example, cylindrical or other shape, preferably, thehousing 110 is a flat cylindrical shape. For convenience of assembly, thecase 110 is formed by welding, for example, cylindrical upper andlower cases 110a and 110b, respectively, using a biocompatible conductive material (e.g., platinum or titanium) through a stamping process, and the upper andlower cases 110a and 110b are welded to form thecase 110, thecase 110 has a cavity, and the outer surface of thecase 110 may be provided with an insulating coating (not shown). Illustratively, the battery andelectrical component assembly 140 is disposed between theupper housing 110a and thelower housing 110b, and the battery andelectrical component assembly 140 and thebracket 150 may be disposed between theupper housing 110a and thelower housing 110 b. Theupper case 110a and thelower case 110b each have, for example, a circular bottom surface and a side surface connected to the bottom surface. After theupper casing 110a and thelower casing 110b are welded to form thecasing 110, a cavity is formed between theupper casing 110a and thelower casing 110b, the bottom surfaces of theupper casing 110a and thelower casing 110b are main surfaces of thecasing 110, and the sidewalls of theupper casing 110a and thelower casing 110b are connected (or at least partially overlapped) to form thesidewall 113 of thecasing 110. Theside wall 113 has, for example, a circular ring shape, and its cross section is circular. Other arrangements of thehousing 110 are possible, for example in another embodiment, thehousing 110 is formed by welding a cylindrical shell and a dome on the cylindrical shell.

The stimulation circuit is used for generating a discharge signal for nerve stimulation. In this embodiment, the stimulation circuit is implemented by theassembly 140 of the battery and the electrical component, and the first discharge end and the second discharge end with opposite polarities can be disposed on theassembly 140 of the battery and the electrical component. The battery and poweredcomponent assembly 140 includes a powered component and a battery for supplying power. The specific connection mode of the stimulation circuit can adopt the known technology as long as a pulse signal for nerve stimulation can be formed through the first discharge end and the second discharge end of the stimulation circuit.

Thefirst feedthrough 120 is fixedly disposed on thesidewall 113 and penetrates through thesidewall 113, a firstconductive end 120a (see fig. 4) of thefirst feedthrough 120 is located in the cavity and connected to a first discharge end of the stimulation circuit, a firstdischarge electrode pad 130 is connected to a secondconductive end 120b (see fig. 4) of thefirst feedthrough 120, and the firstdischarge electrode pad 130 is insulated from thehousing 110. The first discharge end of the stimulation circuit is connected to a firstdischarge electrode pad 130 through afirst feedthrough 120, and the firstdischarge electrode pad 130 may be disposed on thesidewall 113 of thehousing 110.

The seconddischarge electrode pad 170 is disposed on thesidewall 113 and connected to the second discharge end of the stimulation circuit. That is, the polarities of the first and seconddischarge electrode tabs 130 and 170 are opposite. In this embodiment, thenerve stimulation device 100 includes asecond feedthrough 160, thesecond feedthrough 160 is fixedly disposed on thesidewall 113 of thehousing 110 and penetrates through thesidewall 113, a first conductive end of thesecond feedthrough 160 is located in the cavity of thehousing 110 and is connected to a second discharge end of the stimulation circuit, a second conductive end of thesecond feedthrough 160 is connected to a seconddischarge electrode pad 170, and the seconddischarge electrode pad 170 is insulated from thehousing 110. Without limitation, in another embodiment, the second discharge end of the stimulation circuit may be connected to the housing 110 (not connected to the feedthrough), and connected to the second discharge electrode pad by thehousing 110, for example, the neurostimulation device includes an insulating coating disposed on the outer surface of thehousing 110, the insulating coating exposes a portion of thesidewall 113 of thehousing 110, and the second discharge electrode pad is an exposed portion of thesidewall 113. Also, in the other embodiment, the firstdischarge electrode tab 130 and the seconddischarge electrode tab 170 are oppositely disposed on theside wall 113, that is, on theside wall 113 of thecase 110, the firstdischarge electrode tab 130 is located at an end far from the seconddischarge electrode tab 170, and the seconddischarge electrode tab 170 is located at an end far from the firstdischarge electrode tab 130. In one embodiment, the normals of the first and seconddischarge electrode tabs 130 and 170 are on the same straight line.

In this embodiment, since the first and seconddischarge electrode tabs 130 and 170 are connected to the first and second discharge ends of the stimulation circuit in thecase 110, respectively, the first and seconddischarge electrode tabs 130 and 170 may function as the positive andnegative electrodes 101 and 102, respectively, as shown in fig. 2, when nerve stimulation is performed.

The stimulation circuit may include at least two pairs of discharge ends with opposite polarities, that is, the stimulation circuit may have at least two first discharge ends and at least two second discharge ends, wherein each first discharge end is connected to a corresponding firstdischarge electrode pad 130 through a corresponding one of thefirst feedthroughs 120. Each of the second discharge ends may be connected to a corresponding seconddischarge electrode tab 170 through thecase 110 or one of thesecond feedthroughs 160. At this time, the nerve stimulation device may include at least two firstdischarge electrode pads 130 and at least two seconddischarge electrode pads 170. When different pulse discharges are performed on the discharge end, the electric field formed around thenerve stimulation device 100 changes, so that the position of nerve stimulation is more flexible, and the improvement of the tolerance of nerve tissues during long-time stimulation is facilitated.

The first discharge end in the stimulation circuit is, for example, a positive discharge end, more than two first discharge ends can be connected with the same positive output end through different branches, and each branch is provided with a switch so that the first discharge end connected with the corresponding branch is connected with or disconnected from the positive output end; the second discharge end in the stimulation circuit is, for example, a negative discharge end, more than two second discharge ends can be connected with the same negative output end through different branches, and each branch is provided with a switch, so that the second discharge end connected with the corresponding branch is connected with or disconnected from the negative output end.

Referring to fig. 3, in the present embodiment, each of the first discharge ends is connected to a firstdischarge electrode tab 130 through afirst feedthrough 120, and each of the second discharge ends is connected to a seconddischarge electrode tab 170 through asecond feedthrough 160. Thefirst feedthrough 120 and thesecond feedthrough 160 are fixedly disposed on thesidewall 113. The side walls are circular and in order to ensure that an electric field of sufficient strength is generated around the nerve when nerve stimulation is performed, first and second feed-throughs 120, 160 connected to each pair of oppositely polarized first and second discharge ends are arranged, for example, symmetrically on theside walls 113.

Thefirst feedthrough 120 and thesecond feedthrough 160 are, for example, identical in structure, and thefirst feedthrough 120 is exemplified here for explanation of their structure. Referring to fig. 4, thefirst feedthrough 120 may include ahousing 121, an insulatingportion 122 disposed in thehousing 121, and afeedthrough wire 123, thefeedthrough wire 123 is disposed through the insulatingportion 122 and has two exposed ends, and the two ends of thefeedthrough wire 123 respectively constitute a firstconductive end 120a and a secondconductive end 120b of thefirst feedthrough 120. The firstconductive end 120a of thefirst feedthrough 120 is located in the cavity and connected to the first discharge end of the stimulation circuit, and the secondconductive end 120b of thefirst feedthrough 120 is connected to the firstdischarge electrode pad 130 outside the cavity. The feedthrough is compact and compact, which helps to miniaturize theneurostimulation device 100.

In this embodiment, thehousing 121 of thefirst feedthrough 120 is, for example, an annular structure, and is in contact with thehousing 110 and welded. Thehousing 121 has a mountingshoulder 121a. Upon installation of first andsecond feedthroughs 120 and 160, the mounting shoulders can be pressed againstsidewall 113 to weld the housing tohousing 110.

The firstdischarge electrode tab 130 is connected to the secondconductive end 120b of thefirst feedthrough 120 by, for example, welding. The seconddischarge electrode tab 170 is connected to the second conductive end of thesecond feedthrough 160 by, for example, welding. Referring to fig. 3, thenerve stimulation device 100 may further include an insulatingpaste block 180 disposed at a side of thefirst feedthrough 120 adjacent to the firstdischarge electrode pad 130 and a side of thesecond feedthrough 160 adjacent to the seconddischarge electrode pad 170, respectively. Illustratively, an insulatingrubber block 180 is covered on theouter case 121 and theinsulator 122 of thefirst feedthrough 120, and afeedthrough lead wire 123 is passed through the insulatingrubber block 180 and welded to the firstdischarge electrode tab 130. The arrangement of the insulatingrubber block 180 has the technical effects of helping to prevent the first and seconddischarge electrode pads 130 and 170 from directly contacting the housing of the corresponding feedthrough or directly contacting thehousing 110, avoiding short circuits, and also avoiding gaps from being formed between the first and seconddischarge electrode pads 130 and 170 and the corresponding feedthrough, helping to improve the reliability of theneurostimulation device 100.

In the present embodiment, the first and seconddischarge electrode tabs 130 and 170 are, for example, annular tabs, and when assembled, the first and seconddischarge electrode tabs 130 and 170 may be fitted over the second conductive ends of the respective feedthroughs and welded.

Fig. 5 is a schematic view of an upper housing of a neurostimulation device according to an embodiment of the present invention. Referring to fig. 3 to 5, in an alternative, thesidewall 113 of thehousing 110 has at least onegroove 113a, thefirst feedthrough 120 and thesecond feedthrough 160 may be fixedly disposed on thesidewall 113 corresponding to the positions of thegrooves 113a, respectively, and the second conductive ends of thefirst feedthrough 120 and thesecond feedthrough 160 extend into thecorresponding grooves 113a. Thefirst feedthrough 120 and thesecond feedthrough 160 do not protrude from thesidewall 113, so that the difficulty of implantation caused by a large change in the external dimensions of thehousing 110 after thefirst feedthrough 120 and thesecond feedthrough 160 are mounted can be avoided.

The above-described insulating paste blocks 180 are disposed, for example, in therespective grooves 113a to isolate thefirst feedthrough 120 and the firstdischarge electrode pad 130, and to isolate thesecond feedthrough 160 and the seconddischarge electrode pad 170. The feed-through wires of the first feed-through 120 may pass through the corresponding block of insulatingpaste 180 and be connected to the firstdischarge electrode pad 130, and the feed-through wires of the second feed-through 160 may pass through the corresponding block of insulatingpaste 180 and be connected to the seconddischarge electrode pad 170. Optionally, after thefirst feedthrough 120, the insulatingrubber block 180, and the firstdischarge electrode pad 130 are assembled in thegroove 113a, the surface of the firstdischarge electrode pad 130 away from thefirst feedthrough 120 does not exceed thegroove 113a. After thesecond feedthrough 160, the insulatingpaste block 180, and the seconddischarge electrode tab 170 are assembled in therecess 113a, the surface of the seconddischarge electrode tab 170 away from thesecond feedthrough 160 does not exceed therecess 113a. The depth of thegroove 113a is, for example, equal to the sum of the thicknesses of the mountingshoulder 121a of the first feedthrough 120 (or the second feedthrough 160), the insulatingpaste 160, and the first discharge electrode pad 130 (or the second discharge electrode pad 170).

Referring to fig. 6A, in an embodiment, the stimulation circuit in the cavity of thecasing 110 has a pair of discharge ends (i.e., a first discharge end and a second discharge end) with opposite polarities, and the firstdischarge electrode tab 130 connected to the first discharge end and the seconddischarge electrode tab 170 connected to the second discharge end are respectively used as thepositive electrode 101 and thenegative electrode 102, which are disposed opposite to the center of the cross section of thesidewall 113. In other embodiments, it is also possible that the firstdischarge electrode tab 130 serves as a negative electrode and the seconddischarge electrode tab 170 serves as a positive electrode.

Referring to fig. 6B to 6C, in an embodiment, the stimulation circuit has two, three, or four pairs of discharge ends having opposite polarities, and the first and seconddischarge electrode tabs 130 and 170 connected to the discharge ends having opposite polarities of each pair are respectively used as the positive andnegative electrodes 101 and 102 and are symmetrically disposed on thesidewall 113. In another embodiment, the stimulation circuit may have more than five pairs of discharge ends with opposite polarities, and more than five firstdischarge electrode pads 130 and more than five seconddischarge electrode pads 170 may be disposed on thesidewall 113. In consideration of the fact that the assembly time is extended due to the excessive number of electrode tabs, it is optional that the electrode tabs are provided on theside wall 113 of thehousing 110 in four or less pairs, for example, three pairs (as shown in fig. 6C).

On thesidewall 113 of thehousing 110, the firstdischarge electrode tab 130 and the seconddischarge electrode tab 170 may be respectively disposed on two sides of thesidewall 113 according to different polarities (the "two sides of thesidewall 113" may be separated by a plane on which the central axis of thesidewall 113 is located). But is not limited thereto, in another embodiment, the first and seconddischarge electrode tabs 130 and 170 may be staggered in the circumferential direction along theside wall 113. In addition, all the electrode tabs (i.e., all the first and seconddischarge electrode tabs 130 and 170) located on theside wall 113 of thecase 110 may be uniformly disposed on theside wall 113. Further, all of the first and seconddischarge electrode pads 130 and 170 may be arranged to be disposed at an equal distance, i.e., uniformly, on theside wall 113, which facilitates formation of an electric field with a suitable charge density around the nerve.

An alternative assembly process for the neurostimulation device 100 is described below as an example: first, two cylindrical cases (for example, titanium cases), an assembly 140 of a battery and a power consuming component, a bracket 150, a first feedthrough 120, and a second feedthrough 160, which are matched with each other, are obtained, and the assembly 140 of the battery and the power consuming component and the bracket 150 are disposed between the two cylindrical cases; then, the first feedthrough 120 and the second feedthrough 160 are respectively disposed in the through holes on the cylindrical housing, so that the first conductive ends of the first feedthrough 120 and the second feedthrough 160 are connected with the corresponding discharge ends on the assembly 140 of the battery and the electricity consuming component; thereafter, the two cylindrical housings are welded to form the body 110, and the first and second feedthroughs 120 and 160 are welded to the body 110; then, arranging an insulating glue block 180 on the outer side of the first feed-through 120 and the second feed-through 160, and enabling the corresponding feed-through guide wires to penetrate through the insulating glue block 180 and expose the end parts; then, the first discharge electrode tab 130 is welded to the exposed end portion (i.e., the second conductive end 120 b) of the feedthrough wire 123 of the first feedthrough 120, and the second discharge electrode tab 170 is welded to the exposed end portion of the feedthrough wire of the second feedthrough 160. After the assembly is completed, the first and second discharge ends of the stimulating circuit are connected to the first and seconddischarge electrode tabs 130 and 170 through the first andsecond feedthroughs 120 and 160, respectively, and the first and seconddischarge electrode tabs 130 and 170 may serve as the positive andnegative electrodes 101 and 102, respectively, according to the polarities of the connected discharge ends.

The utility model provides anerve stimulation device 100 utilizes the first end of discharging that 120 connects stimulating circuit that feeds through of first that sets up on casing 110lateral wall 113, and first 120 of feeding through is connected with firstdischarge electrode piece 130, seconddischarge electrode piece 170 locate onlateral wall 113 and with stimulating circuit's second discharge end is connected, and firstdischarge electrode piece 130 and seconddischarge electrode piece 170 can carry out nerve stimulation operation as stimulating circuit's discharge electrode, and this nerve stimulation device adopts at least one discharge end of feeding through and connecting stimulating circuit, and the structure is succinct, the assembly of being convenient for.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the claims of the present invention, and any person skilled in the art can use the above disclosed method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, and therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical substance of the present invention all belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. A neurostimulation device, comprising:

a housing having a major surface and a sidewall connected to the major surface, the housing having a cavity;

a stimulation circuit positioned within the cavity, the stimulation circuit having first and second discharge ends of opposite polarity;

the first feed-through is fixedly arranged on the side wall and penetrates through the side wall, and a first conducting end of the first feed-through is positioned in the cavity and is connected with the first discharging end;

the first discharge electrode plate is connected with the second conducting end of the first feed-through, and the first discharge electrode plate is insulated from the shell; and

and the second discharge electrode plate is arranged on the side wall and is connected with the second discharge end.

2. The neurostimulation device of claim 1, further comprising:

the insulating coating is arranged on the outer surface of the shell and exposes part of the side wall;

the second discharge end is connected with the shell, and the second discharge electrode plate is an exposed part of the side wall.

3. The neurostimulation device of claim 2, wherein the first discharge electrode pad and the second discharge electrode pad are oppositely disposed on the side wall.

4. The neurostimulation device of claim 1, further comprising:

the second feed-through is fixedly arranged on the side wall and penetrates through the side wall, a first conducting end of the second feed-through is located in the cavity and connected with the second discharging end, the second conducting end of the second feed-through is connected with the second discharging electrode plate, and the second discharging electrode plate is arranged in an insulating mode on the shell.

5. The neurostimulation device of claim 4, wherein the sidewall is annular, and wherein the first and second feedthroughs are symmetrically disposed on the sidewall.

6. The neurostimulation device of claim 1, wherein the first feedthrough comprises a housing, an insulating portion disposed within the housing, and a feedthrough wire disposed through the insulating portion with ends exposed, the ends of the feedthrough wire comprising the first and second conductive ends.

7. The neurostimulation device of claim 6, wherein the housing of the first feedthrough has a mounting shoulder.

8. The neurostimulation device of claim 6, wherein the side wall has a recess therein, the first discharge electrode pad being positioned within the recess, the second conductive end of the first feedthrough extending into the recess; the nerve stimulation device further comprises an insulating rubber block positioned in the groove, and the second conductive end of the first feed-through penetrates through the insulating rubber block and is connected with the first discharge electrode plate.

9. The neurostimulation device of any one of claims 1 to 8, wherein the neurostimulation device comprises at least two of the first discharge electrode pads and at least two of the second discharge electrode pads.

10. The neurostimulation device of claim 9, wherein all of the first and second discharge electrode tabs are uniformly disposed on the side wall.

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