CN114824919B - A connector and stimulation system - Google Patents

Abstract

A connector and stimulation system, the connector having opposing front and rear ends, the connector comprising: a channel assembly, a plurality of first wires, an inner sleeve, and a fastener. The channel assembly has a receiving hole for the insertion of the insert from the rear end, and includes a plurality of connectors insulated from each other. Each first lead is electrically connected with one or more connecting pieces respectively. The inner sleeve is sleeved outside the channel assembly. The fastener is connected with the front end of the inner sleeve in a sealing mode, the fastener is provided with a through hole, the plurality of first conducting wires penetrate through the through hole of the fastener and are led out from the front end of the connector, and the fastener holds the plurality of first conducting wires tightly. The fastener of the invention is abutted against the channel assembly, so that the gap between the channel assemblies is reduced, the dimensional tolerance is reduced, the structure is compact, and the module is not easy to separate when the connector is subjected to external force. The fastener also holds the lead extending out of the front end of the connector tightly, and prevents the lead from being bent under external force or preventing welding points from being pulled to fall off to cause failure.

Description

A connector and stimulation system

technical field

The present invention relates to the technical field of connectors, in particular to a connector and a stimulation system.

Background technique

Implantable neurostimulators are implanted in different positions in the human body to send electrical pulse signals to specific tissues in the human body, thereby treating or improving the symptoms of related diseases. It is a reversible neuromodulation method. It can effectively improve the neurological recovery of patients and help patients recover.

The neurostimulator needs to be connected through a connector when it is connected to the electrode. The quality of the connector directly affects the transmission quality of the stimulation signal and the treatment effect of the electrode at the point to be stimulated. The key part of the current connector is the module, and the module adopts Separate design, separate soft water seal ring is used to isolate and seal the module and the module. Due to the gradual increase in the number of channels required for nerve stimulation, the size after assembly will become larger and larger. When the module is subjected to external force, Modules are easily separated, resulting in seal failure.

Therefore, there is still a need for a connector to solve the above problems.

SUMMARY OF THE INVENTION

The present invention provides a connector and stimulation system that addresses the above-mentioned problems.

Purpose of the present invention adopts following technical scheme to realize:

A connector having opposing front and rear ends, the connector comprising: a channel assembly, a plurality of first wires, an inner sleeve, and a fastener. The channel assembly has an accommodating hole into which the insert is inserted from the rear end, and the channel assembly includes a plurality of connecting members insulated from each other. Each of the first wires is electrically connected to one or more of the connectors, respectively. The inner sleeve is sleeved outside the channel assembly. The fastener is sealingly connected with the front end of the inner sleeve, the fastener has a through hole, and the plurality of first wires pass through the through hole of the fastener and from the front end of the connector Leaded out, the fasteners hold the plurality of first wires.

In one embodiment, a first connecting portion is provided on the inner side of the front end of the inner sleeve, and the fastener has a second connecting portion that is cooperatively connected with the first connecting portion.

In one embodiment, the first connecting portion is an internal thread opened inside the front end of the inner sleeve, and the second connecting portion is an external thread formed on the fastener.

In one embodiment, the first connecting portion is a slot opened on the inner side of the front end of the inner sleeve, and the second connecting portion is a protrusion provided on the fastener; or,

The first connecting portion is a protrusion arranged on the inner side of the front end of the inner sleeve, and the second connecting portion is a slot opened on the fastener.

In one embodiment, the inner sleeve includes a seal abutting and connected to the front end of the channel assembly by a fastener, the seal including a ring portion and a tube portion, the ring portion and the tube A through hole for a plurality of first wires to pass through is provided in the axial direction of the part, the fastener abuts the ring part between the front end of the channel assembly and the fastener, and the pipe part is sleeved Outside the plurality of first wires, and at least a portion of the tubular portion is located between the inner wall of the fastener and the plurality of first wires to realize the connection between the fastener and the plurality of first wires seal.

In one embodiment, the inner sleeve is provided with a wire harness close to the front end of the channel assembly, the plurality of first wires are fixedly arranged inside the inner sleeve through the wire harness, and the plurality of first wires are outside Covered with a protective layer, the plurality of first wires and the protective layer pass through the through holes of the fastener after passing through the wire harness.

In one embodiment, the channel assembly further includes a plurality of insulating spacers and a channel member disposed on the outer side of each connection member and electrically connected with the connection member, the channel member is annular as a whole, and the outer side of the channel member has One or more transition surfaces for arranging and connecting one or more first wires, there is a gap between the transition surface and the inner sleeve, the rows of the plurality of first wires in the inner sleeve The cloth passes through the transition surface, the insulating spacers and the connecting pieces are alternately arranged at intervals, the connecting pieces are coil springs, and each first wire is electrically connected to the corresponding connecting piece through one of the channel pieces;

The channel assembly further includes a wire splitter located within the inner sleeve and between the front end of the channel assembly and the wire harness, the wire splitter for dividing the plurality of first wires into There are at least two groups, and each group of first wires is respectively located on one side of the channel assembly.

In one embodiment, it also includes an outer sleeve and a connecting assembly, the outer sleeve wraps the inner sleeve, the fastener and part of the outer surface of the plurality of first wires near the front end, at least part of the connecting assembly It is arranged in the accommodating cavity of the outer sleeve and close to the rear end of the connector, and is used for fixing the inserting piece connected in the accommodating hole.

In one embodiment, the connection assembly includes: a waterproof member, a connection sleeve, a waterproof screw and a top water seal, and the waterproof member and the connection sleeve are arranged in the accommodating cavity of the outer sleeve and respectively have a corresponding accommodating cavity. A through hole for inserting through the axially overlapping holes, the waterproof member seals the rear end of the connection sleeve, the side wall of the connection sleeve is provided with a through hole that penetrates inside and outside, and the waterproof screw passes through The through hole of the connection sleeve is used to abut the insert to fix the insert, and the top water seal is arranged on the outer sleeve and used to seal the waterproof screw;

The front end of the outer sleeve is condensed to fix and seal the plurality of first wires extending from the front end of the connector.

A stimulation system, comprising: a nerve stimulator, a second lead, an insert, a stimulation electrode and the connector described in any one of the above;

The neurostimulator is connected to the connector through a first lead, the stimulation electrode is connected to the connector through a second lead and an insert connecting the second lead, or the neurostimulator is connected to the second lead and The insert of the second lead is connected to the connector, and the stimulation electrode is connected to the connector through the first lead.

Compared with the prior art, the beneficial effects of the present invention at least include:

In the present invention, the fasteners are connected to the front end of the inner sleeve, and the fasteners abut the channel components, so that the gap between the channel components is reduced, the dimensional tolerance is reduced, the structure is compact, and the modules are not easily separated when the connector is subjected to external force, thereby improving the tightness. At the same time, the fitting connection of the fastener and the inner sleeve will also hold the first wire extending from the front end of the connector tightly, preventing the first wire from bending or pulling the solder joints under external force and falling off, resulting in failure.

Description of drawings

1 is a schematic structural diagram of a connector according to an embodiment of the present invention;

2 is a schematic structural diagram of a connector with an outer sleeve removed according to an embodiment of the present invention;

3 is a cross-sectional view of the connector of FIG. 2;

4 is a schematic structural diagram of a connector with an inner sleeve and an outer sleeve removed according to an embodiment of the present invention;

5 is a schematic structural diagram of a channel member according to an embodiment of the present invention;

6 is a schematic structural diagram of an insert according to an embodiment of the present invention;

7 is a schematic diagram of a connection structure of a stimulation system according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a connection structure of a stimulation system according to another embodiment of the present invention.

In the figure: 1, channel assembly; 11, accommodating hole; 12, connecting piece; 13, insulating spacer; 14, channel piece; 141, splitter; 142, transition surface; 2, first wire; 21, protection layer; 3, inner sleeve; 31, first connection part; 32, seal; 321, ring part; 322, pipe part; 33, wire harness; 4, fastener; 41, second connection part; 5 6, the outer casing; 6, the connection assembly; 61, the waterproof part; 62, the connection casing; 63, the waterproof screw; 64, the top water seal; 7, the insert; 8, the second wire.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repeated descriptions will be omitted.

The words expressing position and direction described in the present invention are all described by taking the accompanying drawings as an example, but changes can also be made as required, and the changes are all included in the protection scope of the present invention.

1-8, the present invention discloses a connector, the connector has opposite front and rear ends, the connector includes: a channel assembly 1, a plurality of first wires 2, an inner sleeve 3 and a tight Firmware 4.

The channel assembly 1 has an accommodating hole 11 into which the insert 7 is inserted from the rear end, and the channel assembly 1 includes a plurality of connecting members 12 insulated from each other. Each of the first wires 2 is respectively electrically connected to one or more of the connecting pieces 12 , and the plurality of first wires 2 are connected to the channel assembly 1 by, for example, welding or gluing. The inner sleeve 3 is sleeved outside the channel assembly 1 . The fastener 4 is sealingly connected with the front end of the inner sleeve 3, the fastener 4 has a through hole, and the plurality of first wires 2 pass through the through hole of the fastener 4 and are The front end of the connector is drawn out, and the fastener 4 hugs the plurality of first wires 2 to prevent the first wires 2 from being pulled and bent by external force, which may cause the welding part to fall off and fail. The channel assembly 1 is arranged in the inner sleeve 3. The channel assembly may include a connecting piece 12 and an insulating spacer 13. The connecting piece 12 is, for example, a coil spring, and the insulating spacer 13 is, for example, a silicone or rubber waterproof ring, and the fastener 4 is connected The front end of the inner sleeve 3, and the inner end of the fastener 4 is pressed against the channel components, so that the gap between the channel components is narrowed, and the structure is compact. When subjected to external force, the channel components are not easy to loosen and reduce the waterproof effect.

In one embodiment, a first connecting portion 31 is provided on the inner side of the front end of the inner sleeve 3 , and the fastener 4 has a second connecting portion 41 that is matched and connected with the first connecting portion 31 . The fastener 4 and The inner sleeve 3 is matched and connected under the action of the first connecting part 31 and the second connecting part 41, and after the connection, the fastener 4 generates a force from the front end to the rear end of the connector to push the channel assembly 1 to squeeze compactly, preventing the The channel assembly 1 is easily loosened by the impact of external force, which reduces the effect of waterproof sealing. By arranging the inner sleeve 3, a plurality of first wires 2 and the channel assembly 1 can be bound, preventing the movement of the channel assembly 1, improving reliability, and also forming a plurality of first wires 2 and the channel assembly 1 in the inner sleeve 3. To protect, prevent liquid infiltration and improve waterproof performance, the inner sleeve 3 also has a supporting function, so that each part in the channel assembly 1 maintains a preset shape and prevents the force outside the inner sleeve 3 from impacting the channel assembly 1.

In one embodiment, the first connecting portion 31 is, for example, an internal thread formed on the inner side of the front end of the inner sleeve 3 , and the second connecting portion 41 is an external thread formed on the fastener 4 . During installation, for example, the fastener 4 selects a screw, and the screw is screwed on the inner thread of the inner sleeve 3 by a wrench. 1 Loose and easy to water.

In another embodiment, the first connecting portion 31 is, for example, a slot opened on the inner side of the front end of the inner sleeve 3 , and the second connecting portion 41 is a protrusion provided on the fastener 4 for fastening The part 4 is clamped inside the front end of the inner sleeve 3 through the cooperation between the protrusion and the clamping groove, and the force when the fastener 4 is clamped with the inner sleeve 3 is much greater than that of the channel assembly 1 to reverse the fastener 4. Under the premise of no external force, the fastener 4 is fixed in the inner sleeve 3.

The first connecting portion 31 is either a protrusion disposed on the inner side of the front end of the inner sleeve 3 , and the second connecting portion 41 is a slot opened on the fastener 4 . The fastener 4 is also clamped inside the front end of the inner sleeve 3 through the cooperation between the protrusion and the clamping groove, and the force when the same fastener 4 is clamped with the inner sleeve 3 is much greater than that of the channel assembly 1. Under the premise that the fastener 4 is pushed out in the reverse direction, the fastener 4 is fixed in the inner sleeve 3 and will not fall off under the premise of no external force.

In one embodiment, the inner sleeve 3 includes a sealing member 32 , the sealing member 32 is abutted on and connected to the front end of the channel assembly 1 by a fastener, and the sealing member 32 includes a ring portion 321 and a pipe portion 322 , the ring portion 321 and the tube portion 322 are provided with through holes in the axial direction for the plurality of first wires 2 to pass through, and the fastener abuts the ring portion 321 on the front end and the front end of the channel assembly 1 . Between the fasteners, the tube portion 322 is sleeved on the outside of the plurality of first wires 2 , and at least a part of the tube portion 322 is located between the inner wall of the fastener and the plurality of first wires 2 In order to achieve sealing between the fastener and the plurality of first wires 2 . The sealing member 32 is, for example, a rubber material, wherein the ring portion 321 and the pipe portion 322 are, for example, integrally formed rubber parts, the first wire 2 passes through the through hole of the pipe portion 322, and the outer side of the pipe portion 322 passes through the through hole of the fastener. Passing through, the tube portion 322 has a restraining force on the first wires 2 passing through the inner side, and tightens the plurality of first wires 2. One annular surface of the ring portion 321 is abutted by the fastener, and it is sealed during use. The ring portion 321 of the piece 32 improves the sealing between the inner sleeve 3 and the fastener, and the tube portion 322 tightens the plurality of first wires 2 to prevent any one of the first wires 2 from being pulled to cause the solder joints to fall off.

In a preferred embodiment, the inner sleeve 3 is provided with a wire harness 33 near the front end of the channel assembly 1 , the wire harness 33 is, for example, an insulating material, and the plurality of first wires 2 are fixed by the wire harness 33 Arranged inside the inner sleeve 3, the wire harness 33 divides and arranges the first wires 2 to prevent a plurality of first wires 2 from touching and short-circuiting. The plurality of first wires 2 and the protective layer 21 pass through the through holes of the fastener after passing through the wire harness 33 . The protective layer 21 covers the outside of the first wire 2 and is located between the first wire 2 and the through hole of the fastener, which increases the hardness of the plurality of first wires 2 and prevents the plurality of first wires 2 from being bent or damaged. Damaged by excessive wear.

In a preferred embodiment, the channel assembly 1 further includes a plurality of insulating spacers 13 and a channel member 14 disposed outside each connecting piece 12 and electrically connected to the connecting piece 12. The insulating spacer 13 is, for example, a silicone waterproof ring , the insulating spacer 13 and the connecting piece 12 are alternately arranged at intervals, the connecting piece 12 is a coil spring, and each first wire 2 is electrically connected to the corresponding connecting piece 12 through one of the channel pieces 14, respectively, Preferably, the channel member 14 is annular as a whole, and the outer side of the channel member 14 has one or more transition surfaces 142 for arranging and connecting one or more first wires 2 , the transition surface 142 and the There is a gap between the inner sleeves 3, the arrangement of the plurality of first wires 2 in the inner sleeve 3 passes through the transition surface 142, the above structure is the arrangement space reserved for the first wires 2, and the assembly When the inner sleeve 3 does not touch the first wire 2, the inner sleeve 3 can effectively prevent the inner sleeve 3 from pressing the first wire 2 on the transition surface 142, so that the solder joint of the first wire 2 is not easy to fall off and connection failure is avoided. The outer side of the channel member 14 has one or more transition surfaces 142 for arranging and connecting the plurality of first wires 2 . In a specific embodiment, the channel member 14 is made of a conductive metal material, and a transition surface 142 is connected between the smooth arc surfaces. The transition surface 142 is a rectangular plane for welding the first wire 2, so that the The first wire 2 is connected to the inner coil spring through the channel piece 14, and the transition surface 142 is formed by milling during processing. By setting the transition surface 142 , the arrangement positions of the first wires 2 are reserved, and the space occupied by the first wires 2 on the channel assembly 1 is reduced. Moreover, when the connector is squeezed, the channel member 14 of the annular structure supports the inner connecting member 12 to prevent the connecting member 12 from being deformed or damaged.

The channel assembly 1 may also include a wire splitter 141, which is located in the inner sleeve 3 and between the front end of the channel assembly 1 and the wire harness 33. The wire splitter 141 is used for Since the plurality of first wires 2 are divided into at least two groups, the accurately divided groups of first wires 2 can be connected to different positions of the channel assembly 1, and can have a larger welding area in a limited space, improving the connection. The first wires 2 are regularly arranged to prevent short-circuiting due to touching each other during operation, and each group of the first wires 2 is located on one side of the channel assembly 1 respectively.

In one embodiment, the connector further includes an outer sleeve 5 and a connecting assembly 6, the outer sleeve 5 wraps the inner sleeve 3, the fastener and a part of the outer surface of the plurality of first wires 2 near the front end, The outer sleeve 5 protects the connector at the outermost side, and at least a part of the connecting assembly 6 is disposed in the accommodating cavity of the outer sleeve 5 and is close to the rear end of the connector for fixed connection in the accommodating hole The insert 7 in 11 plays a role in fixing and sealing the insert 7 inserted from the rear end, preventing the insert 7 from falling off the rear end of the connector, affecting normal use and improving the waterproof effect.

In one embodiment, the connection assembly 6 includes: a waterproof member 61 , a connection sleeve 62 , a waterproof screw 63 and a top water seal 64 , and the waterproof member 61 and the connection sleeve 62 are arranged in the container of the outer sleeve 5 . It is placed in the cavity and has a through hole for the insert 7 to pass through, which is axially coincident with the accommodating hole 11. The waterproof member 61 seals the rear end of the connection sleeve 62 and plays the role of waterproof filling. The waterproof member 61 is, for example, It is a cylindrical waterproof block made of rubber. The side wall of the connecting sleeve 62 is provided with a through hole that penetrates through the inside and outside. The waterproof screw 63 passes through the through hole of the connecting sleeve 62 and is used to abut the insert 7 to To fix the insert 7, the bottom stud of the waterproof screw 63 and the side wall of the insert 7 are abutted face to face. The top water seal 64 is arranged on the outer casing 5 and used to seal the waterproof screw 63, preventing When in use, water penetrates from the external connection sleeve 62 through the waterproof screw 63 at the connection on the connection sleeve 62, resulting in a short circuit of the internal insert 7, which cannot work normally.

The front end of the outer sleeve 5 is condensed to fix and seal the plurality of first wires 2 extending from the front end of the connector. From the front end of the outer sleeve 5 to the extension direction of the first guide, the diameter of the outer sleeve 5 gradually increases. The decrease is used to bind the plurality of first wires 2 to prevent the plurality of first wires 2 from being pulled to cause the welding to fall off.

The present invention also provides a stimulation system, comprising: a nerve stimulator, a second lead 8, an insert 7, a stimulation electrode and the connector described in the above item.

Referring to FIG. 7 , the neurostimulator is connected to the connector through a first lead 2 , and the stimulation electrode is connected to the connector through a second lead 8 and an insert 7 connected to the second lead 8 .

Alternatively, referring to FIG. 8 , the nerve stimulator is connected to the connector through a second lead 8 and an insert 7 connected to the second lead 8 , and the stimulation electrode is connected to the connector through the first lead 2 .

Specifically, the stimulation system may include at least two ways of transmitting stimulation signals. One is that the front end of the connector is connected to the first lead 2 and the nerve stimulator is connected to the first lead 2. During installation, a second lead that connects the stimulation electrodes is required. The insert 7 of 8 is inserted into the connector, and the insert 7 is fixed in the connector through the connecting assembly 6 before use. The front end of the other connector is connected to the first lead 2, and the stimulation electrode is connected through the first lead 2, and the nerve stimulator is connected to the insert 7 through the second lead 8, and the insert 7 is inserted into the connector to connect the connector, The connection of the neurostimulator and the stimulation electrodes is thus achieved. After the nerve stimulation system is implanted in the patient's body, the nerve stimulator generates an electrical stimulation signal, and the electrical stimulation signal passes through the first lead 2, the connector and the second lead 8, and finally releases electrical stimulation through the stimulation electrode at the point to be stimulated, assisting Patient recovers.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those of ordinary skill in the art will not depart from the principles and spirit of the present invention Variations, modifications, substitutions and alterations of the above-mentioned embodiments are possible within the scope of the invention, and all these changes should fall within the protection scope of the claims of the present invention.

Claims (10)

1. A connector, characterized in that the connector has opposite front and rear ends, the connector comprising: a channel assembly, the channel assembly has an accommodating hole into which the insert is inserted from the rear end, the channel assembly includes a plurality of connecting members insulated from each other; a plurality of first wires, each of which is electrically connected to one or more of the connectors; an inner sleeve, the inner sleeve is sleeved outside the channel assembly; a fastener, the fastener is sealingly connected with the front end of the inner sleeve, the fastener has a through hole, the plurality of first wires pass through the through hole of the fastener and from the The front end of the connector is drawn out, and the fastener holds the plurality of first wires; The channel assembly further includes a plurality of insulating spacers and a channel member disposed on the outer side of each connection member and electrically connected with the connection member, the channel member is in the shape of a ring as a whole, and the outer side of the channel member has one or more A transition surface for arranging and connecting one or more first wires with a gap between the transition surface and the inner sleeve, the arrangement of the plurality of first wires in the inner sleeve passing through the transition surface , the insulating spacers and the connecting pieces are alternately arranged at intervals, and each first wire is electrically connected to the corresponding connecting piece through one of the channel pieces. 2 . The connector according to claim 1 , wherein a first connecting portion is provided on the inner side of the front end of the inner sleeve, and the fastener has a second connecting portion that is matched and connected to the first connecting portion. 3 . 3 . The connector according to claim 2 , wherein the first connecting portion is an internal thread formed on the inner side of the front end of the inner sleeve, and the second connecting portion is an external thread formed on the fastener. 4 . thread. 4 . The connector according to claim 2 , wherein the first connecting portion is a slot opened on the inner side of the front end of the inner sleeve, and the second connecting portion is a protrusion provided on the fastener. 5 . from; or, The first connecting portion is a protrusion arranged on the inner side of the front end of the inner sleeve, and the second connecting portion is a slot opened on the fastener. 5. The connector of claim 1, wherein the inner sleeve comprises a seal abutting and connected to the front end of the channel assembly by a fastener, the seal comprising a ring portion and a pipe part, the ring part and the pipe part are provided with through holes in the axial direction for a plurality of first wires to pass through, and the fastener abuts the ring part on the front end of the channel assembly and fastens it between the parts, the tube part is sleeved on the outside of the plurality of first wires, and at least a part of the tube part is located between the inner wall of the fastener and the plurality of first wires to realize the fastening A seal between the piece and the plurality of first wires. 6 . The connector according to claim 1 , wherein a wire harness close to the front end of the channel assembly is provided in the inner sleeve, and the plurality of first wires are fixedly arranged on the inner sleeve through the wire harness. 7 . Inside, the outer side of the plurality of first wires is covered with a protective layer, and the plurality of first wires and the protective layer pass through the through holes of the fastener after passing through the wire harness. 7. The connector according to claim 6, wherein the connecting member is a coil spring, The channel assembly further includes a wire splitter located within the inner sleeve and between the front end of the channel assembly and the wire harness, the wire splitter for dividing the plurality of first wires into There are at least two groups, and each group of first wires is respectively located on one side of the channel assembly. 8. The connector of claim 1, further comprising an outer sleeve and a connecting assembly, the outer sleeve covering the inner sleeve, the fastener and portions of the plurality of first wires near the front end On the outer side, at least a part of the connecting assembly is disposed in the accommodating cavity of the outer sleeve and is close to the rear end of the connector, and is used for fixing the inserting member connected in the accommodating hole. 9 . The connector according to claim 8 , wherein the connection assembly comprises: a waterproof member, a connection sleeve, a waterproof screw and a top water seal, and the waterproof member and the connection sleeve are arranged on the outer sleeve. 10 . There are through holes in the accommodating cavities and the accommodating holes are axially coincident with the through holes for the inserts to pass through. The waterproof member seals the rear end of the connecting sleeve. the through-hole, the waterproof screw passes through the through-hole of the connection sleeve and is used to abut the insert to fix the insert, and the top water seal is arranged on the outer sleeve and used to seal the waterproof screw; The front end of the outer sleeve is condensed to fix and seal the plurality of first wires extending from the front end of the connector. 10. A stimulation system, comprising: a nerve stimulator, a second lead, an insert, a stimulation electrode and the connector according to any one of claims 1-9; The neurostimulator is connected to the connector through a first lead, the stimulation electrode is connected to the connector through a second lead and an insert connecting the second lead, or the neurostimulator is connected to the second lead and The insert of the second lead is connected to the connector, and the stimulation electrode is connected to the connector through the first lead.

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