Stimulation application system and switching device thereof

Abstract

The present application discloses a stimulation application system and its adapter. The adapter includes: an insertion component, a flexible conductive soft board, a plurality of first leads and an outer sheath tube. The insertion component has a receiving hole, and the insertion component includes a plurality of electrical connectors insulated from each other; the flexible conductive soft board includes a flexible substrate, a plurality of conductive layers and a plurality of connecting parts, the flexible substrate is coated on the outside of the insertion component, the plurality of connecting parts are located on the inner side of the flexible substrate and are distributed with insulating intervals along the length direction of the flexible substrate, the plurality of conductive layers are formed on the flexible substrate or buried in the flexible substrate, each conductive layer is electrically connected to one or more connecting parts, and each connecting part is electrically connected to an electrical connector; each first lead is electrically connected to one or more conductive layers; the outer sheath tube is coated on the outside of the flexible conductive soft board and the plurality of first leads, and the plurality of first leads are led outward from the front end of the adapter. The above-mentioned adapter has better reliability.

Description

Technical Field

[0001] The present application relates to the technical field of adapter devices, and in particular to a stimulation application system and an adapter device thereof. Background Art

[0002] Implantable neurostimulators are implanted in different locations 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 neuroregulation method that can effectively improve the patient's nerve recovery and help the patient recover through neurostimulation.

[0003] When connecting a neurostimulator to an electrode, it needs to be connected through an adapter. The quality of the adapter directly affects the transmission quality of the stimulation signal and the therapeutic effect of the electrode at the stimulated point. The current adapter uses a stacked module connection method, and the wire connection method is complex. There is an accumulation of part tolerances and assembly tolerances. The connection is prone to the risk of short circuits and open circuits, which affects the reliability of the adapter.

[0004] Therefore, a switching device is still needed to solve the above problems. Summary of the invention

[0005] The present application provides a stimulation application system and a switching device thereof to solve the above-mentioned problems.

[0006] The purpose of this application is achieved by the following technical solutions:

[0007] A switching device, the switching device having a front end and a rear end opposite to each other, the switching device comprising:

[0008] An insertion assembly, the insertion assembly having a receiving hole for inserting an insertion member from the rear end of the adapter, the insertion assembly comprising a plurality of electrical connectors insulated from each other;

[0009] A flexible conductive soft board, the flexible conductive soft board comprising a flexible substrate, a plurality of conductive layers and a plurality of connecting parts, the flexible substrate is coated on the outside of the insert component, the plurality of connecting parts are located on the inside of the flexible substrate and are distributed with insulation intervals along the length direction of the flexible substrate, the plurality of conductive layers are formed on the flexible substrate or embedded in the flexible substrate, the plurality of conductive layers extend along the length direction of the flexible substrate, each of the conductive layers is electrically connected to one or more of the connecting parts, and each of the connecting parts is electrically connected to one of the electrical connectors;

[0010] A plurality of first leads, each of which is electrically connected to one or more of the conductive layers;

[0011] An outer covering tube, wherein the outer covering tube covers the flexible conductive soft board and a plurality of first leads, and the plurality of first leads are led outward from the front end of the adapter.

[0012] In one embodiment, the switching device further includes:

[0013] An inner covering tube, the inner covering tube covering the outside of the flexible conductive soft board and being located between the flexible conductive soft board and the outer covering tube;

[0014] A sealing covering sleeve, at least a portion of which is sealed and accommodated in the inner edge of the front end of the inner covering tube, and the sealing covering sleeve is provided with through holes for the plurality of first lead wires to pass through.

[0015] In one embodiment, at least a portion of the sealing sheath is fixedly accommodated at the front end inner edge of the inner sheath tube, the plurality of first lead wires pass through the through holes of the sealing sheath, and the sealing sheath tightly embraces the plurality of first lead wires.

[0016] In one embodiment, the adapter device further comprises a fastener, and the fastener is sealingly connected to the front end of the inner cladding tube;

[0017] The sealing covering sleeve includes a ring portion and a tube portion, the ring portion and the tube portion are axially provided with through holes for multiple first leads to pass through, the fastener abuts the ring portion between the front end of the insertion component and the fastener, the tube portion is sleeved on the outside of the multiple first leads, and at least a portion of the tube portion is located between the inner wall of the fastener and the multiple first leads to achieve sealing between the fastener and the multiple first leads.

[0018] In one embodiment, the inner side of the front end of the inner sheathing tube is threadedly connected or snap-fitted to the fastener.

[0019] In one embodiment, a wire bundle and a wire splitter are provided in the inner sheathing tube near the front end of the insertion component. The multiple first leads are fixedly arranged inside the inner sheathing tube by the wire bundle. The outer sides of the multiple first leads are covered with a protective layer. The multiple first leads and the protective layer pass through the wire bundle and then pass through the through hole of the sealing sheathing sleeve. The wire splitter is located between the front end of the insertion component and the wire bundle. The wire splitter is used to divide the multiple first leads into at least two groups, and each group of first leads is located on different sides of the flexible conductive soft board.

[0020] A stimulation application system, comprising: a neurostimulator, a second lead, an insertion member, a stimulation electrode and any one of the above-mentioned switching devices;

[0021] The neurostimulator is connected to the adapter via a first lead, and the stimulation electrode is connected to the adapter via a second lead and an insertion piece connected to the second lead, or the neurostimulator is connected to the adapter via a second lead and an insertion piece connected to the second lead, and the stimulation electrode is connected to the adapter via the first lead.

[0022] A switching device, the switching device having a front end and a rear end opposite to each other, the switching device comprising:

[0023] An insertion assembly, the insertion assembly having a receiving hole for inserting an insertion member from the rear end of the adapter, the insertion assembly comprising a plurality of electrical connectors insulated from each other;

[0024] A flexible conductive soft board, the flexible conductive soft board comprising a flexible substrate, a plurality of conductive layers and a plurality of connecting parts, a portion of the flexible substrate is coated on the outside of the insert component, the plurality of connecting parts are located on the inside of the flexible substrate and are distributed with insulation intervals along the length direction of the flexible substrate, the plurality of conductive layers are formed on the flexible substrate or embedded in the flexible substrate, the plurality of conductive layers extend along the length direction of the flexible substrate, each of the conductive layers is electrically connected to one or more of the connecting parts, and each of the connecting parts is electrically connected to one of the electrical connectors;

[0025] An outer covering tube, wherein the outer covering tube covers the outside of the flexible conductive soft board, and the flexible conductive soft board is led outward from the front end of the adapter.

[0026] In one embodiment, the switching device further includes:

[0027] An inner covering tube, the inner covering tube covering the outside of the flexible conductive soft board and being located between the flexible conductive soft board and the outer covering tube;

[0028] A sealing covering sleeve, at least a portion of which is sealed and accommodated in the front end inner edge of the inner covering tube, and the sealing covering sleeve is provided with a through hole for the flexible conductive soft board to pass through.

[0029] In one embodiment, at least a portion of the sealing sheath is fixedly accommodated at the inner edge of the front end of the inner sheath tube, the flexible conductive soft board passes through the through hole of the sealing sheath, and the sealing sheath hugs the flexible conductive soft board;

[0030] The adapter device also includes a sealing sleeve, which covers the outside of the portion of the flexible conductive soft board located outside the outer covering tube and the outside of the portion of the flexible conductive soft board located at the front end of the outer covering tube, and a part of the sealing sleeve is located between the outer covering tube and the flexible conductive soft board.

[0031] In one embodiment, the front end of the inner coating tube is filled with a resin that covers a portion of the flexible conductive soft board.

[0032] In one embodiment, the insert assembly further comprises a plurality of insulating spacers, the insulating spacers and the electrical connectors are arranged alternately, and the electrical connectors are coil springs; or,

[0033] The insertion assembly further comprises an integrated support frame, the integrated support frame is provided with a plurality of spaced receiving grooves, each receiving groove of the integrated support frame is provided with an electrical connector, the electrical connector is a coil spring, and the integrated support frame has a receiving hole for inserting the extension member from the rear end of the adapter; or,

[0034] The insertion component also includes an integrated support frame, on which a connecting plate and a plurality of annular spacers spaced apart and distributed on one side of the connecting plate are provided, the electrical connector is provided between two adjacent annular spacers, the electrical connector is a coil spring, the through holes on the plurality of annular spacers and the coil spring are used for inserting the extension piece, when the flexible conductive soft board is coated on the outer side of the insertion component, an avoidance hole is formed on the flexible conductive soft board for matching the shape of the connecting plate of the integrated support frame, and the connecting plate is located in the avoidance hole of the flexible conductive soft board.

[0035] In one embodiment, the adapter device also includes a locking assembly near the rear end, and the locking assembly includes: a waterproof seal, a channel connecting tube, a locking screw and a water seal. The waterproof seal and the channel connecting tube are arranged in the accommodating cavity of the outer sheath tube and respectively have through holes that coincide with the axial direction of the accommodating hole for the insertion piece to pass through. The waterproof seal seals the rear end of the channel connecting tube, and the side wall of the channel connecting tube is provided with a through hole that penetrates the inside and the outside. The locking screw passes through the through hole of the channel connecting tube and is used to abut the insertion piece to fix the insertion piece. The water seal is arranged on the outer sheath tube and is used to seal the locking screw.

[0036] A stimulation application system, comprising: a neurostimulator, a second lead, an insertion member, a stimulation electrode and any one of the above-mentioned switching devices;

[0037] The neurostimulator is connected to the adapter via the flexible conductive board, and the stimulation electrode is connected to the adapter via a second lead and an insertion piece connected to the second lead, or the neurostimulator is connected to the adapter via a second lead and an insertion piece connected to the second lead, and the stimulation electrode is connected to the adapter via the flexible conductive board.

[0038] Compared with the prior art, the beneficial effects of this application include at least:

[0039] By using a flexible conductive soft board in the adapter to respectively connect the insertion component and multiple first leads, electrical connection is achieved after the connecting part of the flexible conductive soft board is in direct contact with the electrical connector, eliminating the welding process, and simplifying the wire connection method and assembly process in the adapter. Since the channel connecting piece arranged on the outside of the coil spring is no longer used, the accumulation of part tolerances and assembly tolerances can be reduced, thereby improving the reliability of the adapter. The use of an external sheathing tube can improve the waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of the switching device of Example 1 of the present application.

[0041] Figure 2 It is a schematic diagram of the partial structure of the adapter device of Example 1 of the present application, with the outer sheathing tube, inner sheathing tube and flexible conductive soft board removed.

[0042] Figure 3 It is a schematic diagram of the partial structure of the adapter device of Example 1 of the present application after removing the outer cladding tube and the inner cladding tube.

[0043] Figure 4 It is a schematic diagram of the structure of the flexible conductive soft board of Example 1 of the present application.

[0044] Figure 5 It is a schematic diagram of the structure of the insertion member of Example 1 of the present application.

[0045] Figure 6 It is a schematic structural diagram of an insertion assembly using an integrated support frame in Example 1 of the present application.

[0046] Figure 7 It is a structural schematic diagram of another integrated support frame of Example 1 of the present application.

[0047] Figure 8 It is a cross-sectional schematic diagram of the adapter device of Example 1 of the present application.

[0048] Fig. 9 This is a schematic diagram of the connection structure of the stimulation application system of Example 1 of the present application.

[0049] Fig.10 This is another schematic diagram of the connection structure of the stimulation application system of Example 1 of the present application.

[0050] Fig.11 It is a schematic diagram of the structure of the switching device of Example 2 of the present application.

[0051] Fig.12 It is a schematic diagram of the partial structure of the adapter device of Example 2 of the present application after removing the outer cladding tube and the inner cladding tube.

[0052] Fig.13It is a schematic diagram of the structure of the flexible conductive soft board of Example 2 of the present application.

[0053] In the figure: 10, insertion component; 11, electrical connector; 12, insulating spacer; 13, integrated support frame; 131, receiving groove; 132, connecting plate; 133, annular spacer; 14, receiving hole; 20, flexible conductive soft board; 21, flexible substrate; 22, conductive layer; 23, connecting part; 24, avoidance hole; 30, first lead; 31, protective layer; 40, outer covering tube; 50, insertion part; 51, contact part; 60, inner covering tube; 61, wire bundle part; 62, wire distribution part; 70, sealing covering sleeve; 71, ring part; 72, tube part; 80, locking component; 81, waterproof sealing part; 82, channel connecting tube; 83, locking screw; 84, water seal; 1, neural stimulator; 2, second lead; 3, stimulation electrode; 4, adapter. DETAILED DESCRIPTION

[0054] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0055] The words expressing position and direction described in this application are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all changes are included in the scope of protection of this application.

[0056] Example 1

[0057] Reference Figure 1-8 This embodiment provides a switching device 4, which has a front end and a rear end relative to each other, and includes: an insertion component 10, a flexible conductive soft board 20, a plurality of first leads 30 and an outer covering tube 40.

[0058] The insertion assembly 10 has a receiving hole 14 for inserting the insertion member 50 from the rear end of the adapter 4. Figure 5 A plurality of contact portions 51 insulated from each other may be provided on the insertion member 50, and the insertion assembly 10 includes a plurality of electrical connectors 11 insulated from each other, and the electrical connectors 11 are, for example, coil springs.

[0059] In a specific embodiment, referring to Figure 2The insertion component 10 also includes a plurality of insulating spacers 12, such as rubber rings or silicone rings. The insulating spacers 12 and the electrical connectors 11 are alternately arranged. By arranging the insulating spacers 12, two adjacent electrical connectors 11 are insulated from each other, and each electrical connector 11 can be electrically connected to a contact portion 51 on the insertion member 50 respectively.

[0060] In a specific embodiment, referring to Figure 6 The insertion component 10 also includes an integrated support frame 13, on which a plurality of spaced-apart receiving grooves 131 are provided, and in each receiving groove 131 of the integrated support frame 13 there is provided an electrical connector 11, and the integrated support frame 13 has a receiving hole 14 for inserting the insertion member 50 from the rear end of the adapter 4. Since the plurality of receiving grooves 131 are spaced-apart, the electrical connectors 11 in the receiving grooves 131 can be insulated from each other. As the number of channels of the adapter 4 gradually increases, if the conventional insertion component 10 structure is adopted, the size of the overall structure after assembly will be significantly increased. However, by adopting the insertion component 10 in the form of an integrated support frame 13, the distance between two adjacent electrical connectors 11 can be reduced. When the number of channels increases, the size of the overall structure after assembly can be significantly reduced.

[0061] In a specific embodiment, referring to Figure 7 The insertion component 10 also includes an integrated support frame 13, on which a connecting plate 132 and a plurality of annular spacers 133 spaced apart and spaced apart on one side of the connecting plate 132 are provided, the electrical connector 11 is provided between two adjacent annular spacers 133, the electrical connector 11 is a coil spring, the plurality of annular spacers 133 and the through holes on the coil spring are used for inserting the insertion member 50, and when the flexible conductive soft board 20 is covered on the outer side of the insertion component 10, refer to Figure 4 The flexible conductive soft board 20 is formed with an avoidance hole 24 for matching the shape of the connecting plate 132 of the integrated support frame 13, and the connecting plate 132 is located in the avoidance hole 24 of the flexible conductive soft board 20. The integrated support frame 13 component of the above structure not only has Figure 6 The advantages of the integrated support frame 13 are shown, and when the flexible conductive soft board 20 covers the insertion component 10, the connecting plate 132 of the integrated support frame 13 and the avoidance hole 24 of the flexible conductive soft board 20 form a snap-fit ​​structure or a positioning structure, which can prevent the flexible conductive soft board 20 from moving, thereby improving the electrical connection reliability between the flexible conductive soft board 20 and the electrical connector 11.

[0062] Reference Figure 4 The flexible conductive soft board 20 includes a flexible substrate 21, a plurality of conductive layers 22 and a plurality of connecting parts 23.

[0063] The material of the flexible substrate 21 can be an organic material, such as a polyimide material. Figure 3 The flexible substrate 21 is wrapped around the outside of the insertion component 10. The flexible substrate 21 can be a cylindrical structure as a whole. The flexible substrate 21 includes a relative inner side and an outer side. The multiple connecting parts 23 are located on the inner side of the flexible substrate 21 and are distributed with insulating intervals along the length direction of the flexible substrate 21. The connecting part 23 can be a sheet structure and extend circumferentially along the inner wall of the flexible substrate 21. The connecting part 23 of the above structure can increase the contact area between the connecting part 23 and the electrical connector 11, thereby increasing the reliability of the electrical connection.

[0064] The plurality of conductive layers 22 are formed on the flexible substrate 21 or embedded in the flexible substrate 21. The plurality of conductive layers 22 extend along the length direction of the flexible substrate 21. Each of the conductive layers 22 is electrically connected to one or more of the connecting parts 23. Each of the connecting parts 23 is electrically connected to one of the electrical connectors 11. Specifically, taking the case where the plurality of conductive layers 22 are embedded in the flexible substrate 21 as an example, a plurality of conductive layers 22 insulated from each other can be formed on a flattened flexible substrate 21 by film forming, and then a layer of flexible substrate 21 is covered to embed the conductive layers 22 in the flexible substrate 21. Then, a plurality of connecting parts 23 insulated and spaced apart are formed on the inner side of the flexible substrate 21. The conductive layers 22 and the connecting parts 23 are electrically connected by drilling holes and injecting conductive material into the holes. The conductive layers 22 can be made of copper. Thus, each conductive layer 22 can be electrically connected to one of the electrical connectors 11 through one of the connecting parts 23. One end of each conductive layer 22 is used to connect to the connecting part 23, and the other end of each conductive layer 22 can be used to connect to the first lead 30. It should be noted that each of the conductive layers 22 may also be electrically connected to a plurality of the connecting portions 23 .

[0065] Each of the first leads 30 is electrically connected to one or more of the conductive layers 22 . The first leads 30 may be metal wires. The other end of the conductive layer 22 may extend from the flexible substrate 21 and then be connected to the first leads 30 by welding.

[0066] The outer covering tube 40 is covered on the outside of the flexible conductive soft board 20 and the multiple first leads 30. The outer covering tube 40 can be made of silicone. The silicone is covered on the outside of the flexible conductive soft board 20 and the multiple first leads 30, which can improve the waterproof performance of the adapter 4. The multiple first leads 30 are led outward from the front end of the adapter 4.

[0067] Therefore, by using a flexible conductive soft board 20 in the adapter device 4 to respectively connect the insertion component 10 and the multiple first leads 30, the connecting portion 23 of the flexible conductive soft board 20 is directly in contact with the electrical connector 11 to achieve electrical connection, eliminating the welding process, and simplifying the wire connection method and assembly process in the adapter device 4. Since the channel connecting piece arranged on the outside of the coil spring is no longer used, the accumulation of part tolerances and assembly tolerances can be reduced, thereby improving the reliability of the adapter device 4. The use of an outer sheathing tube 40 can improve the waterproof performance.

[0068] In a specific embodiment, referring to Figure 3 and 8 The adapter device 4 further includes: an inner sheathing tube 60 and a sealing sheathing sleeve 70 .

[0069] The inner covering tube 60 covers the outside of the flexible conductive soft board 20 and is located between the flexible conductive soft board 20 and the outer covering tube 40. By setting the inner covering tube 60, the flexible conductive soft board 20 can be restrained to prevent the flexible conductive soft board 20 from moving, thereby improving reliability. The flexible conductive soft board 20 and the insertion component 10 in the inner covering tube 60 can also be protected to prevent liquid from penetrating and improve waterproof performance. The inner covering tube 60 also has a supporting function, so that the various parts in the insertion component 10 maintain a preset shape and prevent the force outside the inner covering tube 60 from impacting the insertion component 10.

[0070] The sealing covering sleeve 70 can be made of rubber. At least a portion of the sealing covering sleeve 70 is sealed and accommodated in the front end inner edge of the inner covering tube 60. The sealing covering sleeve 70 is provided with through holes for the plurality of first lead wires 30 to pass through. By providing the sealing covering sleeve 70, the plurality of first lead wires 30 are sealed and led out from the inner covering tube 60. The sealing covering sleeve 70 also blocks the front end opening of the inner covering tube 60 to prevent liquid from penetrating, thereby improving the waterproof performance.

[0071] In a specific embodiment, at least a portion of the sealing covering sleeve 70 is fixedly accommodated at the inner edge of the front end of the inner covering tube 60, and at least a portion of the sealing covering sleeve 70 can be fixedly accommodated at the inner edge of the front end of the inner covering tube 60 by adhesion. The multiple first leads 30 pass through the through holes of the sealing covering sleeve 70, and the sealing covering sleeve 70 hugs the multiple first leads 30. The sealing covering sleeve 70 with the above structure can, on the one hand, prevent liquid from penetrating from the gap between the sealing covering sleeve 70 and the inner covering tube 60, and from the gap between the sealing covering sleeve 70 and the first leads 30. On the other hand, the sealing covering sleeve 70 hugs the multiple first leads 30. When the parts of the multiple first leads 30 located outside the adapter 4 are impacted, bent, or pulled by external forces, the parts of the multiple first leads 30 located inside the adapter 4 can be prevented from being pulled, thereby causing the connection between the multiple first leads 30 and the flexible conductive soft board 20 to fail. Therefore, the reliability of the adapter 4 can be improved.

[0072] In a specific embodiment, the adapter device 4 also includes a fastener (not shown), which is sealed and connected to the front end of the inner sheathing tube 60. The inner side of the front end of the inner sheathing tube 60 and the fastener can be threaded or snap-connected. The fastener can be a screw or a fastener with a protrusion or groove structure on the outer surface.

[0073] The sealing sheath 70 includes a ring portion 71 and a tube portion 72. The ring portion 71 and the tube portion 72 are provided with through holes in the axial direction for the plurality of first leads 30 to pass through. The fastener abuts the ring portion 71 between the front end of the insertion component 10 and the fastener. The tube portion 72 is sleeved on the outside of the plurality of first leads 30, and at least a portion of the tube portion 72 is located between the inner wall of the fastener and the plurality of first leads 30 to achieve sealing between the fastener and the plurality of first leads 30. By providing the fastener and the sealing sheath 70, the fastener can abut the ring portion 71 of the sealing sheath 70 against the front end of the insertion component 10 to achieve sealing and waterproofing. A portion of the tube portion 72 of the sealing sheath 70 is located between the inner wall of the fastener and the plurality of first leads 30 to prevent liquid from penetrating between the fastener and the plurality of first leads 30.

[0074] In a specific embodiment, the inner sheath tube 60 is provided with a wire harness 61 and a wire splitter 62 near the front end of the insertion component 10. The plurality of first leads 30 are fixedly arranged inside the inner sheath tube 60 through the wire harness 61. The outer side of the plurality of first leads 30 is covered with a protective layer 31, which may be made of plastic. The plurality of first leads 30 and the protective layer 31 pass through the through hole of the sealing sheath 70 after passing through the wire harness 61. The wire splitter 62 is located between the front end of the insertion component 10 and the wire harness 61. The wire splitter 62 is used to divide the plurality of first leads 30 into at least two groups, and each group of first leads 30 is located on different sides of the flexible conductive soft board 20. By providing the protective layer 31, liquid can be prevented from penetrating between the plurality of first leads 30, and the tensile strength of the plurality of first leads 30 can be improved, while preventing the plurality of first leads 30 from contacting with liquid and being corroded. By providing the wire tying member 61, the parts of the first leads 30 located inside the inner sheath tube 60 can be tied to prevent being pulled. By providing the wire dividing member 62, the first leads 30 can be divided into multiple groups and then led out to different sides of the flexible conductive soft board 20, which facilitates welding of the first leads 30 and the conductive layer 22 of the flexible conductive soft board 20, with a larger welding space and high welding reliability.

[0075] In a specific embodiment, the front end of the inner sheathing tube 60 is filled with a resin (not shown) that covers a portion of the flexible conductive soft board 20. The resin is, for example, an epoxy resin. In addition to covering a portion of the flexible conductive soft board 20, the resin can also cover the wire bundle 61 and the wire distribution component 62, thereby preventing liquid from penetrating into the interior of the inner sheathing tube 60 and improving the waterproof performance.

[0076] In a specific embodiment, the adapter device 4 further includes a locking assembly 80 near the rear end, and the locking assembly 80 includes: a waterproof sealing member 81 , a channel connecting pipe 82 , a locking screw 83 and a water sealing member 84 .

[0077] The waterproof seal 81 and the channel connecting tube 82 are arranged in the accommodating cavity of the outer cladding tube 40 and respectively have through holes for the insertion member 50 to pass through, which are axially coincident with the accommodating hole 14. The waterproof seal 81 seals the rear end of the channel connecting tube 82. The side wall of the channel connecting tube 82 is provided with a through hole that penetrates inside and outside. The locking screw 83 passes through the through hole of the channel connecting tube 82 and is used to abut the insertion member 50 to fix the insertion member 50. The water seal 84 is arranged on the outer cladding tube 40 and is used to seal the locking screw 83. By providing the locking assembly 80, when the insertion member 50 is inserted into the adapter 4, the locking screw 83 can fix the insertion member 50 to prevent the insertion member 50 from moving. At the same time, the waterproof seal 81 can seal the rear end of the channel connecting tube 82, and the water seal 84 can seal the outer cladding tube 40 on the locking screw 83, thereby improving the waterproof performance.

[0078] This embodiment further provides a stimulation application system, which includes: a neural stimulator 1, a second lead 2, an insertion member 50, a stimulation electrode 3 and the above-mentioned adapter 4.

[0079] Among them, refer to Fig. 9 The neurostimulator 1 is connected to the adapter 4 via a first lead 30, and the stimulation electrode 3 is connected to the adapter 4 via a second lead 2 and an extension piece 50 connected to the second lead 2, thereby achieving electrical connection between the neurostimulator 1 and the stimulation electrode 3, and the neurostimulator 1 applies stimulation to the part to be stimulated via the stimulation electrode 3.

[0080] Or, refer to Fig.10 The neurostimulator 1 is connected to the adapter 4 via the second lead 2 and the extension piece 50 connected to the second lead 2, and the stimulation electrode 3 is connected to the adapter 4 via the first lead 30, thereby achieving electrical connection between the neurostimulator 1 and the stimulation electrode 3, and the neurostimulator 1 applies stimulation to the part to be stimulated via the stimulation electrode 3.

[0081] Example 2

[0082] Reference Figure 11-13 The present embodiment provides a switching device 4 , which has a front end and a rear end relative to each other. The switching device 4 includes: an insertion component 10 , a flexible conductive soft board 20 and an outer covering tube 40 .

[0083] The insertion assembly 10 has a receiving hole 14 for inserting the insertion member 50 from the rear end of the adapter 4, and includes a plurality of mutually insulated electrical connectors 11. The insertion assembly 10 of this embodiment may have the same or similar structure as the insertion assembly 10 of embodiment 1, and will not be described in detail here.

[0084] Reference Fig.13 The flexible conductive soft board 20 includes a flexible substrate 21, a plurality of conductive layers 22 and a plurality of connecting parts 23.

[0085] The material of the flexible substrate 21 can be an organic material, such as a polyimide material. A portion of the flexible substrate 21 is covered on the outside of the insertion component 10. The flexible substrate 21 can be a cylindrical structure as a whole. The flexible substrate 21 includes a relative inner side and an outer side. The multiple connecting parts 23 are located on the inner side of the flexible substrate 21 and are distributed with insulating intervals along the length direction of the flexible substrate 21. The connecting part 23 can be a sheet structure and extend circumferentially along the inner wall of the flexible substrate 21. The connecting part 23 of the above structure can increase the contact area between the connecting part 23 and the electrical connector 11, thereby increasing the reliability of the electrical connection.

[0086] The multiple conductive layers 22 are formed on the flexible substrate 21 or embedded in the flexible substrate 21, and the multiple conductive layers 22 extend along the length direction of the flexible substrate 21. Each of the conductive layers 22 is electrically connected to one or more of the connecting parts 23, and each of the connecting parts 23 is electrically connected to one of the electrical connectors 11. The arrangement and connection method of the conductive layers 22 and the connecting parts 23 of this embodiment may be the same or similar to the arrangement and connection method of the conductive layers 22 and the connecting parts 23 in Embodiment 1, and will not be described in detail herein.

[0087] The outer covering tube 40 is covered on the outside of the flexible conductive soft board 20. The outer covering tube 40 can be made of silicone. The silicone is covered on the outside of part of the flexible conductive soft board 20 to improve the waterproof performance of the adapter 4. The flexible conductive soft board 20 is led out from the front end of the adapter 4.

[0088] The difference between the adapter device 4 of this embodiment and the adapter device 4 of embodiment 1 is that in embodiment 1, the flexible conductive soft board 20 is arranged in the outer covering tube 40 and connected to multiple first leads 30, and the multiple first leads 30 are led outwardly. In this embodiment, the flexible conductive soft board 20 is directly led outwardly from the front end of the adapter device 4, and there is no need to set multiple first leads 30.

[0089] Therefore, by using the flexible conductive soft board 20 in the adapter 4 to connect the insertion component 10, the connection portion 23 of the flexible conductive soft board 20 is directly in contact with the electrical connector 11 to achieve electrical connection, eliminating the welding process, simplifying the wire connection method and assembly process in the adapter 4, and because the channel connecting piece set on the outside of the coil spring is no longer used, the accumulation of part tolerances and assembly tolerances can be reduced, thereby improving the reliability of the adapter 4, and using the outer sheath tube 40 can improve the waterproof performance. In addition, since there is no need to set multiple first leads 30, the welding step of the first lead 30 and the flexible conductive soft board 20 is omitted, further simplifying the connection method and assembly process.

[0090] In a specific embodiment, the adapter device 4 further includes: an inner coating tube 60 and a sealing coating sleeve 70 .

[0091] The inner covering tube 60 covers the outside of the flexible conductive soft board 20 and is located between the flexible conductive soft board 20 and the outer covering tube 40. By setting the inner covering tube 60, the flexible conductive soft board 20 can be restrained to prevent the flexible conductive soft board 20 from moving, thereby improving reliability. The flexible conductive soft board 20 and the insertion component 10 in the inner covering tube 60 can also be protected to prevent liquid from penetrating and improve waterproof performance. The inner covering tube 60 also has a supporting function, so that the various parts in the insertion component 10 maintain a preset shape and prevent the force outside the inner covering tube 60 from impacting the insertion component 10.

[0092] The sealing sheath 70 may be made of rubber, at least a portion of which is sealed and contained in the inner edge of the front end of the inner sheath tube 60, and a through hole is provided on the sealing sheath 70 for the flexible conductive soft board 20 to pass through. A portion of the sealing sheath 70 may also be filled in the cylindrical flexible conductive soft board 20 to prevent liquid from passing through the inside of the flexible conductive soft board 20. By providing the sealing sheath 70, the flexible conductive soft board 20 is sealed and led out of the inner sheath tube 60, and the sealing sheath 70 simultaneously blocks the front end opening of the inner sheath tube 60 to prevent liquid from penetrating and improve the waterproof performance.

[0093] In a specific embodiment, at least a portion of the sealing sheath 70 is fixedly accommodated at the inner edge of the front end of the inner sheath tube 60, and the flexible conductive soft board 20 passes through the through hole of the sealing sheath 70, and the sealing sheath 70 hugs the flexible conductive soft board 20. The sealing sheath 70 with the above structure can prevent liquid from penetrating from the gap between the sealing sheath 70 and the inner sheath tube 60 and from the gap between the sealing sheath 70 and the flexible conductive soft board 20. On the other hand, the sealing sheath 70 hugs the flexible conductive soft board 20. When the portion of the flexible conductive soft board 20 outside the adapter 4 is impacted, bent, or pulled by an external force, the portion of the flexible conductive soft board 20 inside the adapter 4 can be prevented from being pulled, thereby causing the connection between the flexible conductive soft board 20 and the insertion component 10 to fail, thereby improving the reliability of the adapter 4.

[0094] The adapter 4 may further include a sealing sleeve (not shown), which is, for example, an organic resin. The sealing sleeve is coated on the outside of the portion of the flexible conductive soft board 20 located outside the outer coating tube and on the outside of the portion of the flexible conductive soft board 20 located at the front end of the outer coating tube 40. A portion of the sealing sleeve is located between the outer coating tube 40 and the flexible conductive soft board 20. By providing the sealing sleeve, liquid can be prevented from penetrating into the flexible conductive soft board 20, thereby improving the waterproof performance of the flexible conductive soft board 20. By extending a portion of the sealing sleeve between the outer coating tube 40 and the flexible conductive soft board 20, the sealing sleeve and the outer coating tube 40 form a partially overlapping structure at the front end of the outer coating tube 40, thereby preventing liquid from penetrating into the flexible conductive soft board 20 from the front end of the outer coating tube 40, thereby improving the waterproof performance.

[0095] In a specific embodiment, the adapter device 4 also includes a locking assembly 80 near the rear end, and the locking assembly 80 includes: a waterproof seal 81, a channel connecting tube 82, a locking screw 83 and a water seal 84. The locking assembly 80 of this embodiment can be the same or similar to the locking assembly 80 of Example 1, and will not be repeated here.

[0096] This embodiment further provides a stimulation application system, which includes: a neural stimulator 1, a second lead 2, an insertion member 50, a stimulation electrode 3 and the above-mentioned adapter 4.

[0097] Among them, refer to Fig. 9 The neurostimulator 1 is connected to the adapter 4 through the flexible conductive soft board 20. Specifically, the neurostimulator 1 can be connected to the adapter 4 through the conductive layer 22 of the flexible conductive soft board 20. The stimulation electrode 3 is connected to the adapter 4 through the second lead 2 and the extension piece 50 connected to the second lead 2, thereby realizing the electrical connection between the neurostimulator 1 and the stimulation electrode 3. The neurostimulator 1 applies stimulation to the part to be stimulated through the stimulation electrode 3.

[0098] Or, refer to Fig.10 The neurostimulator 1 is connected to the adapter 4 via the second lead 2 and the insertion piece 50 connected to the second lead 2, and the stimulation electrode 3 is connected to the adapter 4 via the flexible conductive soft board 20. The stimulation electrode 3 can be specifically connected to the adapter 4 via the conductive layer 22 of the flexible conductive soft board 20, thereby realizing the electrical connection between the neurostimulator 1 and the stimulation electrode 3, and the neurostimulator 1 applies stimulation to the part to be stimulated via the stimulation electrode 3.

[0099] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application without departing from the principles and purpose of the present application. All of these changes should fall within the scope of protection of the claims of the present application.

Claims

1. A switching device, characterized in that: The switching device has a front end and a rear end opposite to each other, and the switching device comprises: An insertion assembly, the insertion assembly having a receiving hole for inserting an inserting member from the rear end of the adapter, the insertion assembly comprising a plurality of mutually insulated electrical connectors, the electrical connectors being coil springs; A flexible conductive soft board, the flexible conductive soft board comprising a flexible substrate, a plurality of conductive layers and a plurality of connecting parts, the flexible substrate is coated on the outside of the insert component, the plurality of connecting parts are located on the inside of the flexible substrate and are distributed with insulation intervals along the length direction of the flexible substrate, the plurality of conductive layers are formed on the flexible substrate or embedded in the flexible substrate, the plurality of conductive layers extend along the length direction of the flexible substrate, each of the conductive layers is electrically connected to one or more connecting parts, each of the connecting parts is electrically connected to one of the electrical connectors, and the connecting parts are in a sheet-like structure and extend circumferentially along the inner peripheral wall of the flexible substrate; A plurality of first leads, each of which is electrically connected to one or more of the conductive layers; An outer covering tube, wherein the outer covering tube covers the flexible conductive soft board and a plurality of first leads, and the plurality of first leads are led outward from the front end of the adapter.

2. The switching device according to claim 1, characterized in that: The switching device also includes: An inner covering tube, the inner covering tube covering the outside of the flexible conductive soft board and being located between the flexible conductive soft board and the outer covering tube; A sealing covering sleeve, at least a portion of which is sealed and accommodated in the inner edge of the front end of the inner covering tube, and the sealing covering sleeve is provided with through holes for the plurality of first lead wires to pass through.

3. The switching device according to claim 2, characterized in that: At least a portion of the sealing sheath is fixedly accommodated at the inner edge of the front end of the inner sheath tube, the plurality of first lead wires pass through the through holes of the sealing sheath, and the sealing sheath tightly embraces the plurality of first lead wires.

4. The switching device according to claim 2, characterized in that: The adapter device also includes a fastener, which is sealed and connected to the front end of the inner cladding tube; The sealing covering sleeve includes a ring portion and a tube portion, the ring portion and the tube portion are axially provided with through holes for multiple first leads to pass through, the fastener abuts the ring portion between the front end of the insertion component and the fastener, the tube portion is sleeved on the outside of the multiple first leads, and at least a portion of the tube portion is located between the inner wall of the fastener and the multiple first leads to achieve sealing between the fastener and the multiple first leads.

5. The switching device according to claim 4, characterized in that: The inner side of the front end of the inner cladding tube is threadedly connected or snap-connected to the fastener.

6. The switching device according to claim 3 or 4, characterized in that: The inner sheathing tube is provided with a wire binding component and a wire dividing component close to the front end of the insertion component. The multiple first leads are fixedly arranged inside the inner sheathing tube by the wire binding component. The outer sides of the multiple first leads are covered with a protective layer. The multiple first leads and the protective layer pass through the through holes of the sealing sheathing sleeve after passing through the wire binding component. The wire dividing component is located between the front end of the insertion component and the wire binding component. The wire dividing component is used to divide the multiple first leads into at least two groups, and each group of first leads is located on different sides of the flexible conductive soft board.

7. A stimulation application system, characterized in that: include: A neural stimulator, a second lead, an insertion member, a stimulation electrode, and a switching device according to any one of claims 1 to 6; The neurostimulator is connected to the adapter via a first lead, and the stimulation electrode is connected to the adapter via a second lead and an insertion piece connected to the second lead, or the neurostimulator is connected to the adapter via a second lead and an insertion piece connected to the second lead, and the stimulation electrode is connected to the adapter via the first lead.

8. A switching device, characterized in that: The switching device has a front end and a rear end opposite to each other, and the switching device comprises: An insertion assembly, the insertion assembly having a receiving hole for inserting an inserting member from the rear end of the adapter, the insertion assembly comprising a plurality of mutually insulated electrical connectors, the electrical connectors being coil springs; A flexible conductive soft board, the flexible conductive soft board comprising a flexible substrate, a plurality of conductive layers and a plurality of connecting parts, a portion of the flexible substrate is coated on the outside of the insert component, the plurality of connecting parts are located on the inside of the flexible substrate and are distributed with insulation intervals along the length direction of the flexible substrate, the plurality of conductive layers are formed on the flexible substrate or embedded in the flexible substrate, the plurality of conductive layers extend along the length direction of the flexible substrate, each of the conductive layers is electrically connected to one or more of the connecting parts, each of the connecting parts is electrically connected to one of the electrical connectors, the connecting parts are in a sheet-like structure and extend circumferentially along the inner peripheral wall of the flexible substrate; An outer covering tube, wherein the outer covering tube covers the outside of the flexible conductive soft board, and the flexible conductive soft board is led outward from the front end of the adapter.

9. The switching device according to claim 8, characterized in that: The switching device also includes: An inner covering tube, the inner covering tube covering the outside of the flexible conductive soft board and being located between the flexible conductive soft board and the outer covering tube; A sealing covering sleeve, at least a portion of which is sealed and accommodated in the front end inner edge of the inner covering tube, and the sealing covering sleeve is provided with a through hole for the flexible conductive soft board to pass through.

10. The switching device according to claim 9, characterized in that: At least a portion of the sealing sheath is fixedly accommodated at the inner edge of the front end of the inner sheath tube, the flexible conductive soft board passes through the through hole of the sealing sheath, and the sealing sheath tightly embraces the flexible conductive soft board; The adapter device also includes a sealing sleeve, which covers the outside of the portion of the flexible conductive soft board located outside the outer covering tube and the outside of the portion of the flexible conductive soft board located at the front end of the outer covering tube, and a part of the sealing sleeve is located between the outer covering tube and the flexible conductive soft board.

11. The switching device according to claim 3 or 9, characterized in that: The front end of the inner coating tube is filled with resin that covers a portion of the flexible conductive soft board.

12. The switching device according to claim 1 or 8, characterized in that: The insert assembly further comprises a plurality of insulating spacers, wherein the insulating spacers and the electrical connectors are arranged alternately; or, The insertion assembly further comprises an integrated support frame, the integrated support frame is provided with a plurality of spaced receiving grooves, each receiving groove of the integrated support frame is provided with an electrical connector, and the integrated support frame has a receiving hole for inserting the extension member from the rear end of the adapter; or, The insertion component also includes an integrated support frame, on which a connecting plate and a plurality of annular spacers spaced apart and distributed on one side of the connecting plate are provided, the electrical connector is provided between two adjacent annular spacers, the through holes on the plurality of annular spacers and the coil spring are used for inserting the extension piece, and when the flexible conductive soft board is coated on the outer side of the insertion component, an avoidance hole is formed on the flexible conductive soft board for matching the shape of the connecting plate of the integrated support frame, and the connecting plate is located in the avoidance hole of the flexible conductive soft board.

13. The switching device according to claim 1 or 8, characterized in that: The adapter device also includes a locking assembly near the rear end, and the locking assembly includes: a waterproof seal, a channel connecting tube, a locking screw and a water seal. The waterproof seal and the channel connecting tube are arranged in the accommodating cavity of the outer sheath tube and respectively have through holes that coincide with the axial direction of the accommodating hole for the insertion member to pass through. The waterproof seal seals the rear end of the channel connecting tube, and the side wall of the channel connecting tube is provided with a through hole that penetrates the inside and the outside. The locking screw passes through the through hole of the channel connecting tube and is used to abut the insertion member to fix the insertion member. The water seal is arranged on the outer sheath tube and is used to seal the locking screw.

14. A stimulation application system, characterized in that: include: A neurostimulator, a second lead, an insertion member, a stimulation electrode, and a switching device according to any one of claims 8 to 13; The neurostimulator is connected to the adapter via the flexible conductive board, and the stimulation electrode is connected to the adapter via a second lead and an insertion piece connected to the second lead, or the neurostimulator is connected to the adapter via a second lead and an insertion piece connected to the second lead, and the stimulation electrode is connected to the adapter via the flexible conductive board.

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