Cutting device for fixed-distance C-shaped insulator between implantable wire electrode contacts

Abstract

The utility model provides a cutting device for a fixed-distance C-shaped insulator between implantable wire electrode contacts, and relates to the field of medical instruments.The cutting device comprises a bottom plate, an insulator placement base table fixedly arranged on the bottom plate, a moving assembly fixedly arranged on the bottom plate, a knife rest and a blade fixedly arranged on the knife rest; an insulator placing base table is arranged on a bottom plate, an insulator is placed in an insulator fixing position of the insulator placing base table, a moving assembly is arranged on the bottom plate, a knife rest is arranged at the moving end of the moving assembly, the knife rest is provided with two blade mounting positions, and the planes where the two blade mounting positions are located intersect. During cutting, the moving assembly drives the two blades to move, the two blades cut the insulator to obtain a section of C-shaped insulator, and then the length of the insulator is cut according to needs.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a cutting device for implantable lead electrode contact distance C-shaped insulator. BACKGROUND

[0002] At present, the implantable medical device is an electronic therapeutic instrument implanted in the body. The implantable medical device generates an electric pulse by a pulse generator and provides energy by a battery. The electric pulse is conducted through a lead electrode to stimulate a diseased part or tissue contacted by the electrode, so as to achieve the purpose of treating dysfunction. The implantable medical device is widely used in the treatment of heart system and nervous system diseases. The implantable medical device includes an implantable cardiac electrical stimulation system (commonly known as a cardiac pacemaker), a deep brain electrical stimulation system, an implantable brain cortex stimulation system, an implantable spinal cord electrical stimulation system, an implantable sacral nerve electrical stimulation system, an implantable vagus nerve electrical stimulation system, an implantable drug infusion system, etc.

[0003] The distance insulator between the lead electrode plug segment and the electrode contact of the working end is usually formed by using a mold, such as silicone, TPU, epoxy resin, etc. The length of the same type of lead electrode contact insulator is set to have multiple specifications, each of which is made by opening a mold, which will increase the development cost. In addition, when the connection mode of the lead electrode contact and the lead is changed later, the mold needs to be modified. Therefore, during the development and design of the lead electrode, the distance insulator between the contacts can be considered to be pre-formed to save development costs. In addition, the insulator structure is usually annular, which is not conducive to the passage of the lead wire connected to the contact during assembly.

[0004] In summary, there are some problems in the manufacture of the distance insulator between the contacts of the implantable lead electrode. First, multiple molds or multiple cavities in the mold need to be designed to form different distance insulators of the same type, which will increase the development cost. Second, the pre-formed distance annular insulator is not convenient for personnel to operate during assembly. Content of the utility model

[0005] The embodiment of the present application provides a cutting device for an implantable lead electrode contact distance C-shaped insulator. First, a steel needle of a corresponding model is inserted into a catheter-shaped insulator, and then the steel needle is placed on a corresponding base platform. Then, a required model of a tool holder and a blade are assembled, and the insulator is cut to obtain a C-shaped insulator with a slot. Finally, the C-shaped insulator is appropriately cut to different lengths according to requirements, thereby solving the problem of high mold opening cost and the problem of inconvenient personnel operation of the annular insulator.

[0006] The embodiment of the present application provides a cutting device for an implantable lead electrode contact distance C-shaped insulator, which comprises:

[0007] a bottom plate;

[0008] An insulator placing base fixed on the bottom plate, the insulator placing base has an insulator fixing position, and an insulator is fixed in the insulator fixing position;

[0009] A moving assembly fixed on the bottom plate, the moving direction of the moving end of the moving assembly is consistent with the length direction of the insulator;

[0010] A tool holder, the tool holder includes a fixed part and a blade connecting part, the fixed part is connected with the moving end of the moving assembly, the blade connecting part is fixedly connected with the fixed part, the blade connecting part has two blade mounting positions, the planes of the two blade mounting positions intersect, and the intersecting straight line is consistent with the length direction of the insulator;

[0011] Blades fixed on the tool holder, two blades are respectively fixed on the two blade mounting positions.

[0012] In a feasible implementation, the cutting device further includes a steel needle;

[0013] The outer diameter of the steel needle matches the inner diameter of the insulator, and the steel needle is inserted into the insulator;

[0014] Both ends of the steel needle penetrate the insulator, and the end of the steel needle facing the blade is provided with a plane.

[0015] In a feasible implementation, the cutting device further includes a limiting block;

[0016] The insulator fixing position extends along a first direction on the insulator placing base, and two limiting blocks are respectively arranged at the two ends of the insulator placing base in the first direction;

[0017] The limiting block is provided with a steel needle avoiding position matched with the steel needle, and the two steel needle avoiding positions and the insulator fixing position are located on the same straight line;

[0018] The steel needle is placed in the steel needle avoiding position, and the two ends of the insulator in the first direction respectively abut against the outer walls of the two limiting blocks.

[0019] In a feasible implementation, the moving assembly includes;

[0020] A slide rail fixed on the bottom plate, the slide rail extends along a first direction, and a plurality of slide rails are arranged in parallel;

[0021] A sliding block in sliding connection with the slide rail;

[0022] A moving plate fixed on a plurality of sliding blocks, and the fixed part is fixed on the moving plate.

[0023] In an implementable implementation, the blade connecting part comprises a connecting plate and a triangular pyramid plate;

[0024] The connecting plate is fixedly connected with the fixing part;

[0025] The triangular pyramid plate has a first face, a second face and a third face connected in sequence, the first face of the triangular pyramid plate is connected with the connecting plate, and two blade mounting positions are respectively arranged on the second face and the third face of the triangular pyramid plate.

[0026] In an implementable implementation, the fixing part comprises a fixing plate, one side of the fixing plate is fixedly connected with the moving assembly, and the other side of the fixing plate is provided with a connecting groove;

[0027] The connecting plate is fixedly arranged in the connecting groove.

[0028] In an implementable implementation, the blade holder further comprises a pressing block;

[0029] Two pressing blocks are respectively fixedly arranged on the second face and the third face of the triangular pyramid plate, and the pressing blocks and the triangular pyramid plate clamp the blade.

[0030] In an implementable implementation, the pressing block and the triangular pyramid plate are detachably connected through bolts.

[0031] In an implementable implementation, the connecting plate and the triangular pyramid plate constitute a clamping groove, and the end of the pressing block is inserted into the clamping groove.

[0032] In an implementable implementation, the connecting plate and the triangular pyramid plate are an integral structure.

[0033] The cutting device for the implantable lead electrode contact distance C-shaped insulator provided by the embodiment of the application comprises an insulator placing base arranged on a bottom plate, an insulator fixing position of the insulator placing base, a moving assembly arranged on the bottom plate, a blade holder arranged on a moving end of the moving assembly, two blade mounting positions of the blade holder, a plane of the two blade mounting positions, a straight line, an insulator, a blade fixedly arranged on the blade mounting position, a moving assembly, two blades, a C-shaped insulator, and a cutting device.

[0034] The first beneficial effect of the technical scheme is that the implantable lead electrode contact distance C-shaped insulator can be manufactured, the mold opening cost is saved, and the cost is reduced.

[0035] The second beneficial effect is that the structure of the C-shaped insulator is more convenient for personnel assembly in the process of assembling the contact of the lead electrode.

[0036] The third beneficial effect is that the C-shaped insulator is cut from a common catheter-shaped insulator, the opening size of the C-shaped port and the diameter of the catheter-shaped insulator are adjustable, and the distance C-shaped insulator produced by the device can be adapted to various specifications of lead electrodes. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 Fig. 1 is a structural schematic diagram of a cutting device for an implantable lead electrode inter-contact distance C-shaped insulator provided by the present application;

[0038] Figure 2 Fig. 2 is a top view of the cutting device;

[0039] Figure 3 Fig. 3 is an exploded view of the knife holder and its connecting structure;

[0040] Figure 4 Fig. 4 is an exploded view of the steel needle and its connecting structure;

[0041] Figure 5 Fig. 5 is a schematic diagram of the moving assembly and its connecting structure;

[0042] Figure 6 Fig. 6 is a schematic diagram of the cutting device in use;

[0043] Figure 7 Fig. 7 is a schematic diagram of the insulator cross section;

[0044] Figure 8 Fig. 8 is a schematic diagram of the insulator, ring electrode and support core assembly state.

[0045] Explanation of reference signs:

[0046] 10 - base plate; 20 - insulator placement base; 30 - moving assembly; 40 - knife holder; 50 - knife blade; 60 - limiting block; 70 - steel needle;

[0047] 21 - insulator fixing position; 31 - slide rail; 32 - slide block; 33 - moving plate; 41 - knife blade installation position; 42 - connecting plate; 43 - three-prism plate; 44 - fixing plate; 45 - connecting groove; 46 - pressing block; 61 - steel needle avoiding position. DETAILED DESCRIPTION

[0048] In order to enable persons skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should belong to the protection scope of the present application.

[0049] The distance insulator between the lead electrode plug section and the electrode contact of the working end is usually formed by a mold, mainly silicone, TPU, epoxy resin, etc. The length of the distance insulator between the electrode contacts of the same type of lead electrode is set in multiple specifications, each of which is made by opening a mold, which will increase the development cost, and when the connection mode of the lead electrode contact and the lead wire is changed later, the mold will also be modified. Therefore, during the development and design of the lead electrode, the distance insulator between the contacts can be considered to be pre-formed to save development costs. And the insulator structure is usually annular, which is not conducive to the passage of the lead wire connected to the contact during assembly.

[0050] In summary, there are some problems in the production of the distance insulator between the contacts of the implantable lead electrode. First, multiple molds or multiple cavities in the mold need to be designed to form different distance insulators of the same type, which will increase the development cost. Second, the pre-formed distance annular insulator is not convenient for personnel to operate during assembly. Therefore, a pre-formed distance insulator needs to be made to solve the problems of high mold opening cost and inconvenient personnel operation of the annular insulator.

[0051] The cutting device for the distance C-shaped insulator between the contacts of the implantable lead electrode provided by the present application first inserts a steel needle of the corresponding model into the catheter-shaped insulator, then places it on the corresponding required base, then assembles the required model tool holder and blade, cuts the insulator to obtain a section of slotted C-shaped insulator, and finally cuts the section of C-shaped insulator to the required different length, which solves the problems of high mold opening cost and inconvenient personnel operation of the annular insulator.

[0052] The specific structure of the cutting device for the distance C-shaped insulator between the contacts of the implantable lead electrode provided by the present application will be described in detail below with reference to the accompanying drawings.

[0053] Referring to Figures 1-8 The cutting device for the distance C-shaped insulator between the contacts of the implantable lead electrode provided by the present application includes;

[0054] The bottom plate 10 can be a rectangular plate body, and the bottom plate 10 is provided with a plurality of through holes to facilitate fixation by bolts;

[0055] An insulator placement base 20 is fixed on the bottom plate 10. The insulator placement base 20 can be a rectangular plate or a prism, and the length direction of the insulator placement base 20 extends in the transverse direction and in the first direction. The insulator placement base 20 has an insulator fixing position 21 arranged on the upper surface of the insulator placement base 20. The insulator fixing position 21 is a groove matched with the insulator, and the groove extends in the first direction. The insulator is fixed in the insulator fixing position 21. The insulator is made of silicone rubber or TPU polyurethane. The insulator has a circular tubular structure, and the diameter of the insulator can be 1 mm-3 mm, and the length of the insulator can be 0.5-100 mm.

[0056] A moving assembly 30 is fixed on the bottom plate 10. The structure of the moving assembly 30 is not limited. The moving direction of the moving end of the moving assembly 30 is consistent with the length direction of the insulator.

[0057] A knife holder 40 is arranged on the bottom plate 10. The knife holder 40 is used for fixing a cutting blade. The knife holder 40 includes a fixed part and a blade connecting part. The fixed part is connected with the moving end of the moving assembly 30. The blade connecting part is fixedly connected with the fixed part. The blade connecting part has two blade mounting positions 41. The planes of the two blade mounting positions 41 intersect, and the intersecting straight line is consistent with the length direction of the insulator.

[0058] A blade 50 is fixed on the knife holder 40. The blade 50 is used as a shaving blade. Two blades 50 are respectively fixed on the two blade mounting positions 41.

[0059] The cutting device for the C-shaped insulator with a fixed distance between the electrode contacts of the implantable lead provided by the embodiment cuts the insulator by driving the two blades 50 to move by the moving assembly 30, cutting the insulator by the two blades 50 to obtain a C-shaped insulator, and then cutting the length of the insulator as required. The opening angle of the C-shaped insulator made by the device is adjustable. By making a plurality of models of the knife holder with different opening and closing angles, the opening angle of the C-shaped insulator made is 20-120°.

[0060] Referring to Figure 4 In some embodiments, the cutting device further includes a steel needle 70. The device has a plurality of models of the steel needle for adapting to insulators with various diameters. The diameter of the insulator can be 0.5-2.8 mm.

[0061] The outer diameter of the steel needle 70 is matched with the inner diameter of the insulator. The steel needle 70 is inserted into the insulator.

[0062] Both ends of the steel needle 70 penetrate the insulator. The end of the steel needle 70 facing the blade 50 is provided with a flat surface. When the blade 50 cuts the insulator, the cutting edge of the blade 50 is in contact with the flat surface of the steel needle 70.

[0063] Referring to Figure 1 and Figure 4 As shown in the drawings, in some embodiments, the cutting device further comprises a limiting block 60, which can be a rectangular block;

[0064] The insulator fixing position 21 extends along a first direction on the insulator placing base 20, and two limiting blocks 60 are respectively arranged at two ends of the insulator placing base 20 in the first direction;

[0065] The limiting block 60 is provided with a steel needle avoiding position 61 matched with the steel needle 70, and the two steel needle avoiding positions 61 and the insulator fixing position 21 are located on the same straight line;

[0066] The steel needle 70 is placed in the steel needle avoiding position 61, and the two ends of the insulator in the first direction respectively abut against the outer walls of the two limiting blocks 60, so as to fix the insulator and the steel needle.

[0067] Referring to Figure 5 As shown in the drawings, in some embodiments, the moving assembly 30 comprises;

[0068] A slide rail 31 fixed on the bottom plate 10, the slide rail 31 extends along a first direction, and a plurality of slide rails 31 are arranged in parallel;

[0069] A sliding block 32 in sliding connection with the slide rail 31;

[0070] A moving plate 33 fixed on a plurality of sliding blocks 32, and the fixed part is fixed on the moving plate 33.

[0071] As shown in the drawings, Figure 5 The upper surface of the bottom plate 10 is provided with slide rails 31 on the front and rear sides, the two slide rails 31 are parallel, the slide rails 31 extend along the transverse direction, the sliding blocks 32 are in sliding connection with the slide rails 31, the moving plate 33 is fixed on the upper surfaces of the two sliding blocks 32, the knife holder is fixedly connected with the moving plate 33, and pushing the moving plate 33 can drive the knife holder and the blade to move, so as to realize cutting of the insulator.

[0072] Referring to Figure 3 As shown in the drawings, in some embodiments, the blade connecting part comprises a connecting plate 42 and a triangular pyramid plate 43;

[0073] The connecting plate 42 can be a rectangular plate body, the longitudinal section of the triangular pyramid plate 43 is a right triangle or an isosceles triangle, and the connecting plate 42 is fixedly connected with the fixed part;

[0074] The three-prism plate 43 has a first surface, a second surface and a third surface connected in sequence, when the longitudinal section of the three-prism plate 43 is an isosceles triangle, the section line of the second surface and the third surface is two sides of the isosceles triangle, that is, the tip of the three-prism plate 43 is vertically downward, the second surface and the third surface are stacked along the vertical plane, the first surface of the three-prism plate 43 is connected with the connecting plate 42, and two blade mounting positions 41 are respectively arranged on the second surface and the third surface of the three-prism plate 43.

[0075] In some embodiments, the fixing part includes a fixing plate 44, which can be a rectangular plate body, the left side of the lower surface of the fixing plate 44 is fixedly connected with the moving assembly 30, and the right side of the lower surface of the fixing plate 44 is provided with a connecting groove 45, which can be a rectangular groove body.

[0076] The connecting plate 42 is fixedly arranged in the connecting groove 45.

[0077] In some embodiments, the knife holder 40 further includes a pressing block 46, which can be a rectangular plate body.

[0078] Two pressing blocks 46 are respectively fixedly arranged on the second surface and the third surface of the three-prism plate 43, and the pressing block 46 and the three-prism plate 43 clamp the blade 50.

[0079] In some embodiments, the pressing block 46 and the three-prism plate 43 are detachably connected through bolts.

[0080] The pressing block 46, the three-prism plate 43 and the blade 50 are all provided with through holes, and the bolts pass through the through holes to fixedly connect the pressing block 46, the three-prism plate 43 and the blade 50, so that the blade 50 is fixed.

[0081] In some embodiments, the connecting plate 42 and the three-prism plate 43 form a clamping groove, and the top end of the pressing block 46 is inserted into the clamping groove, so as to facilitate the cooperation of the outer ends of the connecting plate 42, the three-prism plate 43 and the pressing block 46.

[0082] In some embodiments, the connecting plate 42 and the three-prism plate 43 are an integral structure.

[0083] The cutting device for the C-shaped insulator with a fixed distance between implanted lead wire electrode contacts provided by the embodiment of the application comprises an insulator placing base 20 arranged on a bottom plate 10, an insulator fixing position 21 of the insulator placing base 20, a moving assembly 30 arranged on the bottom plate 10, a knife holder 40 arranged on a moving end of the moving assembly 30, two knife blade mounting positions 41 of the knife holder 40, a plane where the two knife blade mounting positions 41 are located, an intersecting line of the plane, a length direction of the insulator, a knife blade 50 fixed on the knife blade mounting position 41, and the moving assembly 30 driving the two knife blades 50 to move and cutting the insulator to obtain a C-shaped insulator, and then cutting the length of the insulator as required.

[0084] As shown in the figure, A is an insulator, B is a C-shaped opening of the insulator, D is a supporting core, and E is a ring electrode. Figures 6-8

[0085] When the insulator A is cut, the steel needle 70 is inserted into the insulator A, and the plane of the steel needle 70 faces the knife blade 50. The two knife blades 50 are inserted into the upper end of the insulator A according to the set intersection. The knife holder 40 is pushed, and the two knife blades 50 move along the axial direction of the insulator A to cut the insulator A, so that the upper part of the insulator A forms the C-shaped opening B. After the opening of the insulator A, the length of the insulator A is cut as required.

[0086] When the insulator A is assembled with the supporting core D and the ring electrode E, the insulator A and the ring electrode E are sequentially and spacedly sleeved on the outer wall of the supporting core D, and the length of the insulator A determines the distance between adjacent ring electrodes E. The insulator A, the ring electrode E, and the supporting core D only contact a part, and the gap needs to be filled and fixed by glue injection / pressure glue. The purpose of the C-shaped opening B is to inject or press the glue to enter and complete the connection between the insulator and the ring electrode.

[0087] The cutting device provided by the application can manufacture the C-shaped insulator with a fixed distance between implanted lead wire electrode contacts, save the injection mold opening cost, and reduce the cost. In the process of assembling the contacts of the lead wire electrode, the structure of the C-shaped insulator is more convenient for personnel to assemble. The C-shaped insulator is cut out from a common pipe-shaped insulator. The opening size of the C-shaped opening and the diameter of the pipe-shaped insulator are adjustable. The C-shaped insulator with a fixed distance manufactured by the device can be adapted to lead wire electrodes of various specifications.

[0088] ​The implantable medical device involved in the technical scheme of the present application is used for treating diseases of nervous system, heart system and the like, and can be a cardiac electric stimulator (commonly known as a cardiac pacemaker), a deep brain electric stimulator system, a brain cortex stimulator system, a spinal cord electric stimulator system, a sacral nerve electric stimulator system, a vagus nerve electric stimulator system, a gastrointestinal stimulator system, a muscle stimulator system, an implantable drug infusion system and the like, and is not limited to the medical devices listed above. The present application provides a device for spacing C-shaped insulators between electrode contacts of an implantable lead, and the cut-out spacing C-shaped insulators are used for a proximal plug part of a spinal cord stimulation electrode, as an insulator between plug end electrode contacts.

[0089] It is easy to understand that, on the basis of the several embodiments provided by the present application, the skilled in the art can combine, split, recombine and the like to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0090] The above specific embodiments have further detailed the purpose, technical scheme and beneficial effects of the embodiments of the present application, and it should be understood that the above is only a specific embodiment of the present application, and is not used to limit the protection scope of the embodiments of the present application, and any modification, equivalent replacement, improvement and the like made on the basis of the technical scheme of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A cutting device for a fixed-distance C-type insulator between implantable wire electrode contacts, characterized in that: The cutting device comprises the following components: a bottom plate (10); an insulator placement base (20) fixed on the bottom plate (10), the insulator placement base (20) having an insulator fixing position (21) in which an insulator is fixed; a moving assembly (30) fixed on the bottom plate (10), the moving direction of the moving end of the moving assembly (30) being consistent with the length direction of the insulator; a tool holder (40) comprising a fixed part and a blade connecting part, the fixed part being connected with the moving end of the moving assembly (30), the blade connecting part being fixedly connected with the fixed part, the blade connecting part having two blade mounting positions (41), the planes where the two blade mounting positions (41) are located intersecting, and the intersecting straight line being consistent with the length direction of the insulator; two blades (50) fixed on the tool holder (40), the two blades (50) being respectively fixed on the two blade mounting positions (41).

2. The apparatus of claim 1, wherein: The cutting device further comprises a steel needle (70); the outer diameter of the steel needle (70) matches the inner diameter of the insulator, and the steel needle (70) is inserted into the insulator; both ends of the steel needle (70) penetrate through the insulator, and the end of the steel needle (70) facing the blade (50) is provided with a plane.

3. The apparatus of claim 2, wherein: The cutting device further comprises a limiting block (60); the insulator fixing position (21) extends along a first direction on the insulator placement base (20), and two limiting blocks (60) are respectively arranged at the two ends of the insulator placement base (20) in the first direction; the limiting block (60) is provided with a steel needle avoiding position (61) matching the steel needle (70), and the two steel needle avoiding positions (61) and the insulator fixing position (21) are located on the same straight line; the steel needle (70) is placed in the steel needle avoiding position (61), and the two ends of the insulator in the first direction respectively abut against the outer walls of the two limiting blocks (60).

4. The cutting device for the C-shaped insulator for spacing between the contact points of the implantable lead electrode according to claim 1, wherein: the moving assembly (30) comprises: a slide rail (31) fixed on the bottom plate (10), the slide rail (31) extending along a first direction, and a plurality of slide rails (31) being arranged in parallel; a sliding block (32) slidingly connected with the slide rail (31); a moving plate (33) fixed on a plurality of sliding blocks (32), and the fixed part being fixed on the moving plate (33).

5. The cutting device for the C-shaped insulator for spacing between the contact points of the implantable lead electrode according to claim 1, wherein: the blade connecting part comprises a connecting plate (42) and a triangular pyramid plate (43); the connecting plate (42) is fixedly connected with the fixed part; the triangular pyramid plate (43) has a first face, a second face and a third face connected in sequence, the first face of the triangular pyramid plate (43) being connected with the connecting plate (42), and the two blade mounting positions (41) being respectively arranged on the second face and the third face of the triangular pyramid plate (43).

6. The cutting device for implantable lead electrode inter-contact distance C-shaped insulator according to claim 5, characterized in that: The fixed part comprises a fixed plate (44), one side of the fixed plate (44) is fixedly connected with the moving assembly (30), and the other side of the fixed plate (44) is provided with a connecting groove (45); The connecting plate (42) is fixedly arranged in the connecting groove (45).

7. The apparatus of claim 5, wherein the apparatus is configured to cut the C-shaped insulator to a length that is less than the length of the C-shaped insulator. The knife holder (40) further comprises a pressing block (46). The two pressing blocks (46) are respectively fixedly arranged on the second face and the third face of the triangular pyramid plate (43), and the pressing block (46) and the triangular pyramid plate (43) clamp the blade (50).

8. The cutting device for implantable lead electrode inter-contact distance C-shaped insulator according to claim 7, characterized in that: The pressing block (46) and the triangular pyramid plate (43) are detachably connected through bolts.

9. The cutting device for implantable lead electrode inter-contact distance C-shaped insulator according to claim 7, characterized in that: The connecting plate (42) and the triangular pyramid plate (43) constitute a clamping groove, and the end of the pressing block (46) is inserted into the clamping groove.

10. The cutting device for implantable lead electrode inter-contact distance C-shaped insulator according to claim 7, characterized in that: The connecting plate (42) and the triangular pyramid plate (43) are an integral structure.

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