CN114824919B - Connector and stimulation system - Google Patents

Connector and stimulation system Download PDF

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Publication number
CN114824919B
CN114824919B CN202210752480.1A CN202210752480A CN114824919B CN 114824919 B CN114824919 B CN 114824919B CN 202210752480 A CN202210752480 A CN 202210752480A CN 114824919 B CN114824919 B CN 114824919B
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China
Prior art keywords
connector
fastener
wires
inner sleeve
channel assembly
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CN202210752480.1A
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Chinese (zh)
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CN114824919A (en
Inventor
闫昊
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Jingyu Medical Technology Suzhou Co ltd
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Sceneray Co Ltd
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Priority to CN202210752480.1A priority Critical patent/CN114824919B/en
Publication of CN114824919A publication Critical patent/CN114824919A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • H01R13/562—Bending-relieving
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
    • A61N1/36125—Details of circuitry or electric components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • H01R13/565—Torsion-relieving
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5816—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part for cables passing through an aperture in a housing wall, the separate part being captured between cable and contour of aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/12—Connectors or connections adapted for particular applications for medicine and surgery

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

Connector and stimulation system
Technical Field
The invention relates to the technical field of connectors, in particular to a connector and a stimulation system.
Background
The implanted nerve stimulator emits electric pulse signals to specific tissues in a human body by being implanted into different positions in the human body, thereby playing a role in treating or improving related disease symptoms, being a reversible nerve regulation mode, effectively improving the nerve recovery of a patient by nerve stimulation and helping the patient to recover.
The nerve stimulator needs to be connected through the connector when being connected with the electrode, the quality direct influence of connector stimulation signal's transmission quality and electrode are treating the treatment effect of stimulation point, the key part of present connector is the module, the module adopts disconnect-type design, realize keeping apart and sealing with soft water seal ring alone between module and the module, because the required passageway quantity of nerve stimulation increases gradually, the size after the assembly can be bigger and bigger, when the module receives external force, the module separates easily, lead to sealed inefficacy.
Therefore, there is still a need for a connector to solve the above problems.
Disclosure of Invention
The present invention provides a connector and stimulation system that solves the above problems.
The purpose of the invention is realized by adopting the following technical scheme:
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 a receiving hole for an insert to be inserted from a 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 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 first conducting wires tightly.
In one embodiment, the inner sleeve has a first connecting portion formed on an inner side of a front end thereof, and the fastener has a second connecting portion which is engaged with the first connecting portion.
In one embodiment, the first connection is an internal thread opening inside the front end of the inner sleeve and the second connection is an external thread formed on the fastener.
In one embodiment, the first connecting part is a clamping groove formed in the inner side of the front end of the inner sleeve, and the second connecting part is a protrusion arranged on the fastener; alternatively, the first and second liquid crystal display panels may be,
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 clamping groove formed in the fastener.
In one embodiment, the inner sleeve comprises a sealing element, the sealing element is abutted and connected to the front end of the channel assembly through a fastening element, the sealing element comprises a ring part and a tube part, through holes for the plurality of first conducting wires to pass through are formed in the axial directions of the ring part and the tube part, the fastening element abuts the ring part between the front end of the channel assembly and the fastening element, the tube part is sleeved on the outer sides of the plurality of first conducting wires, and at least one part of the tube part is located between the inner wall of the fastening element and the plurality of first conducting wires so as to achieve sealing between the fastening element and the plurality of first conducting wires.
In one embodiment, a wire harness is arranged in the inner sleeve and close to the front end of the channel assembly, the first wires are fixedly arranged in the inner sleeve through the wire harness, a protective layer is coated outside the first wires, and the first wires and the protective layer penetrate through the through holes of the fastening piece after penetrating out of the wire harness.
In one embodiment, the channel assembly further includes a plurality of insulating spacers and a channel member disposed outside each connecting member and electrically connected to the connecting member, the channel member is annular as a whole, the channel member has one or more transition surfaces on the outside thereof for arranging and connecting one or more first wires, a gap is formed between the transition surface and the inner sleeve, the plurality of first wires are arranged in the inner sleeve and pass through the transition surfaces, the insulating spacers and the connecting members are alternately disposed at intervals, the connecting members are coil springs, and each first wire is electrically connected to the corresponding connecting member through one of the channel members;
the channel assembly further comprises a wire divider, the wire divider is located in the inner sleeve and located between the front end of the channel assembly and the wire bundling device, the wire divider is used for dividing the plurality of first wires into at least two groups, and each group of first wires is located on one side face of the channel assembly.
In one embodiment, the connector further comprises an outer sleeve and a connecting assembly, the outer sleeve covers the inner sleeve, the fastener and part of the outer side surfaces of the plurality of first conductors close to the front end, and at least part of the connecting assembly is arranged in the accommodating cavity of the outer sleeve and close to the rear end of the connector and is used for fixedly connecting the insert in the accommodating hole.
In one embodiment, the connection assembly includes: the waterproof part and the connecting sleeve are arranged in the accommodating cavity of the outer sleeve and are respectively provided with a through hole which is axially overlapped with the accommodating hole and is used for the insertion part to pass through, the waterproof part seals the rear end of the connecting sleeve, a through hole which penetrates through the inside and the outside is arranged on the side wall of the connecting sleeve, the waterproof screw passes through the through hole of the connecting sleeve and is used for abutting against the insertion part to fix the insertion part, and the top water seal is arranged on the outer sleeve and is used for sealing the waterproof screw;
the front end of the outer sleeve is convergent to secure and seal a plurality of first wires extending from the front end of the connector.
A stimulation system, comprising: a neurostimulator, a second lead, an insert, a stimulation electrode, and a connector of any of the above;
the nerve stimulator is connected through first wire the connector, the stimulating electrode is connected through second wire and the plug-in of connecting the second wire the connector, perhaps, the nerve stimulator is connected through second wire and the plug-in of connecting the second wire the connector, the stimulating electrode is connected through first wire the connector.
Compared with the prior art, the invention has the beneficial effects that at least:
according to the invention, the fastening piece is connected at the front end of the inner sleeve and 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 modules are not easy to separate when the connector is subjected to external force, thereby improving the sealing property. Meanwhile, the fastener and the inner sleeve are matched and connected, and the first lead extending out of the front end of the connector is held tightly, so that the first lead is prevented from being bent under external force or a welding point is prevented from being pulled to fall off to cause failure.
Drawings
FIG. 1 is a schematic view of a connector according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a connector with an outer sleeve removed according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the connector of FIG. 2;
FIG. 4 is a schematic structural view of a connector of an embodiment of the present invention with the inner and outer sleeves removed;
FIG. 5 is a schematic view of a channel member configuration according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of an insert according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the connection configuration of a stimulation system in accordance with one embodiment of the present invention;
fig. 8 is a schematic diagram of the connection structure of a stimulation system according to another embodiment of the present invention.
In the figure: 1. a channel assembly; 11. a housing hole; 12. a connecting member; 13. an insulating spacer; 14. a channel member; 141. a wire divider; 142. a transition surface; 2. a first conductive line; 21. a protective layer; 3. an inner sleeve; 31. a first connection portion; 32. a seal member; 321. a ring portion; 322. a tube portion; 33. a wire harness; 4. a fastener; 41. a second connecting portion; 5. an outer sleeve; 6. a connecting assembly; 61. a waterproof member; 62. connecting a sleeve; 63. a waterproof screw; 64. a top water seal; 7. an insert; 8. a second conductive line.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 repetitive description will be omitted.
The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention.
Referring to fig. 1-8, the present invention discloses a connector having opposing front and rear ends, the connector comprising: a channel assembly 1, a plurality of first conductors 2, an inner sleeve 3 and a fastener 4.
The channel assembly 1 has a receiving hole 11 for the insertion of the insert 7 from the rear end, and the channel assembly 1 includes a plurality of connectors 12 insulated from each other. Each of the first wires 2 is electrically connected to one or more of the connectors 12, and the plurality of first wires 2 are connected to the channel assembly 1 by, for example, soldering or bonding. The inner sleeve 3 is sleeved outside the channel component 1. The fastener 4 is connected with the front end of the inner sleeve 3 in a sealing mode, the fastener 4 is provided with a through hole, the first wires 2 penetrate through the through hole of the fastener 4 and are led out from the front end of the connector, the fastener 4 holds the first wires 2 tightly, and the phenomenon that the welding position falls off and fails due to the fact that the first wires 2 are pulled and bent by external force is avoided. The channel assembly 1 is arranged in the inner sleeve 3, the channel assembly can comprise a connecting piece 12 and an insulating spacer 13, the connecting piece 12 is a coil spring, the insulating spacer 13 is a waterproof ring made of silica gel or rubber, the fastening piece 4 is connected to the front end of the inner sleeve 3, one end of the inner side of the fastening piece 4 abuts against the channel assembly, the gap between the channel assemblies is reduced, the structure is compact, the channel assembly is not easy to loosen when external force is applied, the waterproof effect is reduced, and layered waterproof is achieved.
In one embodiment, the inner side of the front end of the inner sleeve 3 is provided with a first connecting portion 31, the fastening member 4 is provided with a second connecting portion 41 which is in fit connection with the first connecting portion 31, the fastening member 4 and the inner sleeve 3 are in fit connection through the first connecting portion 31 and the second connecting portion 41, and after connection, the fastening member 4 generates a force from the front end to the rear end of the connector to push the channel assembly 1 to be compacted, so as to prevent the channel assembly 1 from being easily loosened due to external impact, and reduce the effect of waterproof sealing. Through setting up interior sleeve pipe 3, can tie a plurality of first wires 2 and channel assembly 1, prevent that channel assembly 1 from removing, improve the reliability, can also form the protection to a plurality of first wires 2 and channel assembly 1 in the interior sleeve pipe 3, prevent the liquid infiltration, improve waterproof performance, interior sleeve pipe 3 still has the supporting role, makes each part keep presetting the shape in channel assembly 1, prevents that the effort outside interior sleeve pipe 3 from assaulting channel assembly 1.
In one embodiment, said first connection 31 is for example an internal thread opening inside the front end of the inner sleeve 3 and said second connection 41 is an external thread formed on the fastener 4. During installation, the fastening member 4 is, for example, a screw, the screw is screwed on the internal thread of the inner sleeve 3 by a wrench, and after the screw is screwed down, the screw at one end inside the inner sleeve 3 abuts against the channel assembly 1, so that the channel assembly 1 is prevented from being loose and easily entering 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, the second connecting portion 41 is a protrusion arranged on the fastener 4, the fastener 4 is clamped inside the front end of the inner sleeve 3 through the fit between the protrusion and the slot, and the clamping force of the fastener 4 and the inner sleeve 3 is much greater than the force of the channel assembly 1 pushing the fastener 4 out reversely, so that the fastener 4 is fixed inside the inner sleeve 3 without external force.
The first connecting portion 31 is 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 disposed on the fastening member 4. Fastener 4 is inside the front end of interior sleeve pipe 3 through the cooperation joint between arch and the draw-in groove equally to effort when same fastener 4 and interior sleeve pipe 3 joint is far greater than the effort that channel assembly 1 reversely promoted fastener 4, under the prerequisite of not receiving external force, fastener 4 is fixed in interior sleeve pipe 3, can not drop.
In one embodiment, the inner sleeve 3 includes a sealing element 32, the sealing element 32 is abutted and connected to the front end of the channel assembly 1 through a fastening element, the sealing element 32 includes a ring portion 321 and a tube portion 322, the ring portion 321 and the tube portion 322 are axially provided with through holes for the plurality of first conducting wires 2 to pass through, the fastening element abuts the ring portion 321 between the front end of the channel assembly 1 and the fastening element, the tube portion 322 is sleeved outside the plurality of first conducting wires 2, and at least a part of the tube portion 322 is located between the inner wall of the fastening element and the plurality of first conducting wires 2 to realize sealing between the fastening element and the plurality of first conducting wires 2. The sealing member 32 is made of rubber, wherein the ring portion 321 and the tube portion 322 are integrally formed rubber parts, for example, the first wires 2 pass through the through hole of the tube portion 322, the outer side of the tube portion 322 passes through the through hole of the fastener, the tube portion 322 has a restraining force for restraining the first wires 2 passing through the inner side, the plurality of first wires 2 are tightened, one annular surface of the ring portion 321 is abutted by the fastener, the sealing performance between the inner sleeve 3 and the fastener is improved by the ring portion 321 of the sealing member 32 in use, and the tube portion 322 tightens the plurality of first wires 2 to prevent welding points from falling off due to the fact that any one first wire 2 is pulled.
In a preferred embodiment, a wire harness 33 is disposed inside the inner sleeve 3 near the front end of the channel assembly 1, the wire harness 33 is made of an insulating material, for example, the plurality of first wires 2 are fixedly arranged inside the inner sleeve 3 through the wire harness 33, the wire harness 33 divides and arranges the first wires 2 to prevent the plurality of first wires 2 from touching and short-circuiting, the plurality of first wires 2 are covered with the protective layer 21, and the plurality of first wires 2 and the protective layer 21 penetrate through the through holes of the fastener after penetrating out of the wire harness 33. The protective layer 21 is coated on the outer side of the first conducting wire 2 and located between the first conducting wire 2 and the through hole of the fastener, so that the hardness of the plurality of first conducting wires 2 is increased, and the plurality of first conducting wires 2 are prevented from being damaged due to bending or excessive abrasion.
In a preferred embodiment, the channel assembly 1 further includes a plurality of insulating spacers 13 and a channel member 14 disposed outside each connector 12 and electrically connected to the connector 12, the insulating spacers 13 are, for example, silicone waterproof rings, the insulating spacers 13 and the connectors 12 are alternately disposed at intervals, the connectors 12 are coil springs, each first wire 2 is electrically connected to the corresponding connector 12 through one of the channel members 14, preferably, the channel member 14 is annular as a whole, the outside of the channel member 14 has one or more transition surfaces 142 for arranging and connecting one or more first wires 2, a gap is formed between the transition surface 142 and the inner sleeve 3, the plurality of first wires 2 are arranged in the inner sleeve 3 through the transition surface 142, the above structure reserves an arrangement space for the first wires 2, the inner sleeve 3 does not touch the first wires 2 during assembly, the inner sleeve 3 can be effectively prevented from extruding the first lead 2 on the transition surface 142, so that the welding spot of the first lead 2 is not easy to fall off, and connection failure is avoided. The outside of the channel member 14 has one or more transition surfaces 142 for arranging and connecting a plurality of first wires 2. In one embodiment, the channel member 14 is made of conductive metal, and the transition surface 142 is connected between the smooth arc surfaces, and the transition surface 142 is a rectangular plane for welding the first wire 2, so that the first wire 2 is connected to the coil spring inside through the channel member 14, and the transition surface 142 is formed by milling during machining. The arrangement position of the first conductor 2 is reserved by arranging the transition surface 142, so that the occupied space of the first conductor 2 on the channel component 1 is reduced. Also, when the connector is compressed, the channel member 14 of the annular configuration supports the inner connecting member 12 to prevent deformation or damage to the connecting member 12.
The channel assembly 1 may further include a splitter 141, the splitter 141 is located in the inner sleeve 3 and located between the front end of the channel assembly 1 and the wire harness 33, the splitter 141 is configured to divide the plurality of first wires 2 into at least two groups, the plurality of groups of first wires 2 which are accurately divided may be connected at different positions of the channel assembly 1, a large welding area may be provided in a limited space, reliability of connection is improved, the regularly arranged first wires 2 are prevented from touching each other and being short-circuited during operation, and each group of first wires 2 is located on one side surface of the channel assembly 1.
In one embodiment, the connector still includes outer tube 5 and coupling assembling 6, the outer tube 5 cladding interior sleeve pipe 3, fastener and the partial lateral surface of a plurality of first wires 2 near the front end, outer tube 5 play the guard action to the connector in the outside, at least part setting of coupling assembling 6 is in the holding intracavity of outer tube 5 and near the rear end of connector for fixed connection is at the insert 7 of holding in the hole 11, and plays fixed and sealed effect to insert 7 from rear end male, prevents that insert 7 from droing from the rear end of connector, influences normal use, and improves water-proof effects.
In one embodiment, the connection assembly 6 comprises: the waterproof part 61 and the connecting sleeve 62 are arranged in the accommodating cavity of the outer sleeve 5 and respectively provided with a through hole which is axially overlapped with the accommodating hole 11 and is used for the insertion part 7 to pass through, the waterproof part 61 seals the rear end of the connecting sleeve 62 to play a role of waterproof filling, the waterproof part 61 is a columnar waterproof block made of rubber, for example, the side wall of the connecting sleeve 62 is provided with a through hole which penetrates through the inside and the outside, the waterproof screw 63 penetrates through the through hole of the connecting sleeve 62 and is used for abutting against the insertion part 7 to fix the insertion part 7, the bottom column head of the waterproof screw 63 and the side wall of the insertion part 7 are abutted through a surface, the top water seal 64 is arranged on the outer sleeve 5 and is used for sealing the waterproof screw 63 and preventing water from permeating from the connecting position of the outer connecting sleeve 62 on the connecting sleeve 62 through the waterproof screw 63 when in use, resulting in a short circuit of the inner insert 7 and failure to function properly.
The front end of outer tube 5 is the convergent form in order to fix and seal a plurality of first wire 2 that stretch out from the front end of connector, and from the extension direction of the front end of outer tube 5 to first direction, the diameter of outer tube 5 reduces gradually, plays the effect with the constraint of a plurality of first wire 2, prevents that a plurality of first wire 2 from being dragged and leading to the welding to drop.
The present invention also provides a stimulation system comprising: a neurostimulator, a second lead 8, an insert 7, a stimulation electrode, and a connector as described in one of the above.
Referring to fig. 7, the neurostimulator is connected to the connector by a first lead 2, and the stimulation electrode is connected to the connector by a second lead 8 and an insert 7 connected to the second lead 8.
Alternatively, referring to fig. 8, the neurostimulator is connected to the connector via a second lead 8 and an insert 7 connected to the second lead 8, and the stimulation electrode is connected to the connector via the first lead 2.
Specifically, the stimulation system can comprise at least two stimulation signal transmission modes, wherein the front end of a connector is connected with a first lead 2, and is connected with a nerve stimulator through the first lead 2, when the connector is installed, an insert 7 of a second lead 8 connected with a stimulation electrode is inserted into the connector, and the insert 7 is fixed in the connector through a connecting component 6 for use. The front end of the other connector is connected with the first lead 2 and is connected with the stimulating electrode through the first lead 2, the nerve stimulator is connected with the insert 7 through the second lead 8, and the insert 7 is inserted into the connector to be connected with the connector, thereby realizing the connection of the nerve stimulator and the stimulating electrode. After the nerve stimulation system is implanted in the body of a patient, the nerve stimulator generates an electrical stimulation signal, the electrical stimulation signal passes through the first lead 2, the connector and the second lead 8, and finally, electrical stimulation is released at a point to be stimulated through the stimulation electrode to assist the recovery of the patient.
Although embodiments of the present invention have been shown and described, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, all such changes being within the scope of the appended claims.

Claims (10)

1. A connector having opposing front and rear ends, the connector comprising:
a channel assembly having a receiving hole into which an insert is inserted from a rear end, the channel assembly including a plurality of connectors insulated from each other;
a plurality of first conducting wires, wherein each first conducting wire is electrically connected with one or more connecting pieces respectively;
the inner sleeve is sleeved outside the channel assembly;
a fastener sealingly connected to the front end of the inner sleeve, the fastener having a through-hole, the first plurality of wires passing through the through-hole of the fastener and exiting outwardly from the front end of the connector, the fastener clasping the first plurality of wires;
the channel assembly further comprises a plurality of insulating spacers and channel pieces which are arranged on the outer side of each connecting piece and electrically connected with the connecting pieces, the channel pieces are annular integrally, one or more transition surfaces used for arranging and connecting one or more first wires are arranged on the outer sides of the channel pieces, gaps are formed between the transition surfaces and the inner sleeve, the plurality of first wires are arranged in the inner sleeve and pass through the transition surfaces, the insulating spacers and the connecting pieces are alternately arranged at intervals, and each first wire is electrically connected with the corresponding connecting piece through one channel piece.
2. The connector of claim 1, wherein the inner sleeve defines a first connector portion at an inner side of the front end thereof, and the fastener includes a second connector portion for mating engagement with the first connector portion.
3. The connector of claim 2, wherein the first connection portion is an internal thread formed inside the front end of the inner sleeve and the second connection portion is an external thread formed on the fastener.
4. The connector of claim 2, wherein the first connecting portion is a slot formed in the inner side of the front end of the inner sleeve, and the second connecting portion is a projection provided on the fastener; alternatively, the first and second electrodes may be,
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 clamping groove formed in the fastener.
5. The connector of claim 1, wherein the inner sleeve includes a sealing member, the sealing member is abutted and connected to the front end of the channel assembly by a fastening member, the sealing member includes a ring portion and a tube portion, the ring portion and the tube portion are axially provided with through holes for the plurality of first conductive wires to pass through, the fastening member abuts the ring portion between the front end of the channel assembly and the fastening member, the tube portion is sleeved outside the plurality of first conductive wires, and at least a portion of the tube portion is located between an inner wall of the fastening member and the plurality of first conductive wires to achieve sealing between the fastening member and the plurality of first conductive wires.
6. The connector of claim 1, wherein a wire harness is arranged in the inner sleeve and close to the front end of the channel assembly, the first wires are fixedly arranged in the inner sleeve through the wire harness, a protective layer is coated outside the first wires, and the first wires and the protective layer penetrate through the through hole of the fastener after penetrating out of the wire harness.
7. The connector of claim 6, wherein the connecting member is a coil spring,
the channel assembly further comprises a wire divider, the wire divider is located in the inner sleeve and located between the front end of the channel assembly and the wire bundling device, the wire divider is used for dividing the plurality of first wires into at least two groups, and each group of first wires is located on one side face of the channel assembly.
8. The connector of claim 1, further comprising an outer sleeve surrounding the inner sleeve, the fastener, and a portion of the outer side of the first plurality of conductors proximate the front end, and a connection assembly at least partially disposed within the receiving cavity of the outer sleeve proximate the rear end of the connector for securing an insert connected within the receiving cavity.
9. The connector of claim 8, wherein the connection assembly comprises: the waterproof part and the connecting sleeve are arranged in the accommodating cavity of the outer sleeve and are respectively provided with a through hole which is axially overlapped with the accommodating hole and is used for the insertion part to pass through, the waterproof part seals the rear end of the connecting sleeve, a through hole which penetrates through the inside and the outside is arranged on the side wall of the connecting sleeve, the waterproof screw passes through the through hole of the connecting sleeve and is used for abutting against the insertion part to fix the insertion part, and the top water seal is arranged on the outer sleeve and is used for sealing the waterproof screw;
the front end of the outer sleeve is convergent to secure and seal a plurality of first wires extending from the front end of the connector.
10. A stimulation system, comprising: a neurostimulator, a second lead, an insert, a stimulation electrode, and the connector of any of claims 1-9;
the neural stimulator is connected to the connector through a first lead, the stimulation electrode is connected to the connector through a second lead and an insert connected to the second lead, or the neural stimulator is connected to the connector through a second lead and an insert connected to the second lead, and the stimulation electrode is connected to the connector through a first lead.
CN202210752480.1A 2022-06-29 2022-06-29 Connector and stimulation system Active CN114824919B (en)

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CN204319511U (en) * 2014-11-28 2015-05-13 北京品驰医疗设备有限公司 A kind of connecting device of implantable neural electrical stimulator
CN206239890U (en) * 2016-05-13 2017-06-13 北京品驰医疗设备有限公司 A kind of implanted vagus nerve stimulator electrode cable
CN108808313B (en) * 2018-07-06 2019-12-13 清华大学 connecting mechanism of implantable medical device, implantable medical device and connecting method
CN111180950A (en) * 2020-02-28 2020-05-19 广东铭利达科技有限公司 A kind of interface unit
CN113694381B (en) * 2021-09-10 2024-04-30 常州瑞神安医疗器械有限公司 Implantable nerve stimulation extension lead
CN113871958B (en) * 2021-09-30 2024-02-02 景昱医疗科技（苏州）股份有限公司 Connecting assembly, connecting device and nerve electrical stimulation system
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