A contact structure, a method for assembling a direction electrode, and a direction electrode

Abstract

The present invention provides a contact structure, a method for assembling a directional electrode, and a directional electrode. The sheet-like contact structure in the contact structure includes at least one sheet-like contact; and at least one frame adapted to be sleeved on a mandrel. A connection end extends from a side of the frame facing the sheet-like contact and is connected to the sheet-like contact. When it is necessary to install the sheet-like contact at a specific position on the mandrel, it is not necessary to position and fix the individual sheet-like contact, but only to position and fix the entire sheet-like contact structure sleeved on the mandrel. Comparing the structure of the sheet-like contact and the sheet-like contact structure, obviously, it is easier to position and fix the cylindrical sheet-like contact structure that can be sleeved on the mandrel on the mandrel. Therefore, by using the sheet-like contact structure of the present invention, it is possible to more easily achieve the positioning and fixing of the sheet-like contact on the mandrel, thereby reducing the assembly difficulty of the sheet-like contact, improving the production efficiency, and increasing the product yield.

Description

Technical Field

[0001] The present invention relates to the technical field of implantable medical instruments, and particularly relates to a contact structure for an implantable nerve stimulation system, a method for assembling a directional electrode, and a directional electrode. Background Art

[0002] Deep brain stimulation (DBS) therapy is a treatment technology that implants electrodes into specific nuclear regions deep in the human brain through stereotactic positioning technology, and under the control of a pulse generator, emits electrical pulses through the electrodes to stimulate the target point. By externally programming certain stimulation parameters to the pulse generator, the excitability of the nucleus can be changed to achieve the regulation of nerve function. The pulse generator can adjust stimulation parameters such as frequency, pulse width, and voltage to maximize the neuromodulation function of DBS. With the development of nerve stimulation technology, more and more symptoms have been proven to be effectively treated with DBS. Various limb and mental diseases such as Parkinson's disease, essential tremor or parkinsonian tremor, dystonia, epilepsy, and obsessive-compulsive disorder have shown significant improvement in symptoms after using nerve stimulation therapy.

[0003] The main stimulation parameters adjusted by traditional DBS products are frequency, pulse width, and voltage. In actual clinical practice, there is also a certain need for the direction of electrode stimulation because not only do different regions in the brain have different stimulation effects, but stimulating the corresponding functional regions in different directions also has different effects. The stimulation end of traditional electrodes is a ring-shaped contact, and the stimulation direction cannot be controlled, making it difficult to achieve precise stimulation and unable to obtain optimal regulation.

[0004] In the existing DBS directional electrodes, multiple electrode contacts are provided at the stimulation end of the guide member. The electrode contacts include ring-shaped electrode contacts and sheet-shaped electrode contacts. Among them, the ring-shaped electrode contacts are arranged around the guide member, and their stimulation direction cannot be controlled. The sheet-shaped electrode contacts usually form a group, and are arranged around the circumference of such a guide member, and the stimulation direction can be controlled. Although the electrode design scheme in the prior art can control the stimulation direction, due to the difficulty in positioning and fixing the sheet-shaped electrode contacts on the guide member, the assembly difficulty is large, the production efficiency is low, the yield is low, and the cost is high. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect that although the electrode design scheme in the prior art can control the stimulation direction, due to the difficulty in positioning and fixing the sheet-shaped electrode contacts on the guide member, the assembly difficulty is large, the production efficiency is low, the yield is low, and the cost is high, so as to provide a sheet-shaped contact structure that can overcome the above technical defects.

[0006] The present invention also provides a ring-shaped contact structure.

[0007] The present invention also provides a method for assembling a directional electrode.

[0008] The present invention also provides a direction electrode manufactured by the above assembly method.

[0009] For this reason, the present invention provides a sheet-like contact structure, including:

[0010] Sheet-like contacts, at least one;

[0011] Frames, at least one, adapted to be sleeved on a mandrel;

[0012] One side of the frame facing the sheet-like contact extends a connection end, which is connected to the sheet-like contact to form the sheet-like contact structure;

[0013] When the sheet-like contact structure is sleeved on the mandrel, by defining the position of the sheet-like contact structure, the position of the sheet-like contact on the mandrel or its relative position with other contacts can be defined.

[0014] As a preferred solution, there are at least two sheet-like contacts, and there is a gap between two adjacent sheet-like contacts.

[0015] As a preferred solution, there are two frames, which are respectively arranged at both ends of the sheet-like contact.

[0016] As a preferred solution, the position where the side line of the connection end meets the side line of the sheet-like contact forms a first incision with an acute angle or a right angle.

[0017] As a preferred solution, a second incision or a break is provided on the frame.

[0018] As a preferred solution, the position where the second incision or the break is provided is not opposite to the sheet-like contact.

[0019] As a preferred solution, the frame is made of a metal or plastic with a lower hardness, which is easy to shear the incision.

[0020] As a preferred solution, the frame is made of an elastic plastic or a shape memory metal, which is easy to sleeve on the mandrel.

[0021] As a preferred solution, the sheet-like contact is made of platinum or its alloy, iridium or its alloy material.

[0022] As a preferred solution, the frame and the sheet-like contact are integrally formed.

[0023] As a preferred solution, the sheet-like contact is an arc-shaped contact piece, and the radian of the sheet-like contact is basically the same as the radian of the corresponding position of the frame.

[0024] As a preferred solution, at least one positioning and engaging structure is provided at one end of the frame away from the sheet-shaped contact, and a set angle is provided between adjacent two positioning and engaging structures.

[0025] As a preferred solution, the positioning and engaging structure is a convex limiting block and / or a concave limiting groove.

[0026] The present invention also provides an annular contact structure, including:

[0027] Annular contact;

[0028] Frame, at least one, adapted to be sleeved on a mandrel;

[0029] A connecting end extends from a side of the frame facing the annular contact and is connected to the annular contact to form the annular contact structure;

[0030] When the annular contact structure is sleeved on the mandrel, by defining the position of the annular contact structure, the position of the annular contact on the mandrel or the relative position with other contacts can be defined.

[0031] As a preferred solution, there are two frames, which are respectively arranged at two ends of the annular contact.

[0032] As a preferred solution, a first cut with an acute angle or a right angle is formed at a position where the side line of the connecting end is connected to the side line of the annular contact.

[0033] As a preferred solution, a second cut or a break is provided on the frame.

[0034] As a preferred solution, at least one positioning and engaging structure is provided at one end of the frame away from the annular contact, and a set angle is provided between adjacent two positioning and engaging structures.

[0035] As a preferred solution, the positioning and engaging structure is a convex limiting block and / or a concave limiting groove.

[0036] The present invention also provides a method for assembling a direction electrode, including the following steps:

[0037] 1) Using the sheet-shaped contact structure as described in any one of the above, complete the connection between the wire and the sheet-shaped contact;

[0038] 2) Sleeve the sheet-shaped contact structure on the mandrel, and install the wire in the through groove and / or channel of the mandrel;

[0039] 3) Fix the sheet-shaped contact;

[0040] 4) Separate the sheet-shaped contact from the frame and remove the frame;

[0041] 5) A filling material to form a regular arc surface on the outer surface.

[0042] As a preferred solution, in step 3), the sheet-shaped contact is fixed by filling a material at a position of the sheet-shaped contact that is not connected to the frame.

[0043] As a preferred solution, in step 5), after removing the frame, the void is filled with material again to form a regular arc surface on the outer surface.

[0044] As a preferred solution, the filling material is polyurethane or epoxy resin.

[0045] As a preferred solution, in step 2), it further includes the step of assembling and installing at least two of the sheet-shaped contact structures on the mandrel;

[0046] Or the step of assembling and installing at least one of the sheet-shaped contact structures and at least one ring-shaped contact;

[0047] Or the step of assembling and installing at least one of the sheet-shaped contact structures and at least one of the ring-shaped contact structures as described in any one of the above;

[0048] Or the step of assembling and installing at least one of the sheet-shaped contact structures, at least one ring-shaped contact, and at least one of the ring-shaped contact structures as described in any one of the above.

[0049] As a preferred solution, in step 2), the axial distance between the sheet-shaped contact structure and other contact structures and / or contacts is determined by the frame, and the relative angle between the sheet-shaped contact structure and other contact structures and / or contacts is determined by the engaging structure.

[0050] The present invention also provides a directional electrode manufactured by using the assembly method as described in any one of the above.

[0051] The technical solution provided by the present invention has the following advantages:

[0052] 1. The sheet-like contact structure of the present invention includes a sheet-like contact and a frame. The frame is adapted to be sleeved on a mandrel. The frame is connected to the sheet-like contact through a connection end to form a sheet-like contact structure. The advantage of forming the sheet-like contact structure is that when it is necessary to install the sheet-like contact at a specific position on the mandrel, it is not necessary to position and fix the individual sheet-like contact alone, but only to position and fix the entire sheet-like contact structure sleeved on the mandrel. Comparing the structures of the sheet-like contact and the sheet-like contact structure, obviously, it is easier to position and fix the cylindrical sheet-like contact structure that can be sleeved on the mandrel on the mandrel. Therefore, by adopting the sheet-like contact structure of the present invention, it is possible to more easily achieve the positioning and fixing of the sheet-like contact on the mandrel, thereby reducing the assembly difficulty of the sheet-like contact, improving the production efficiency, and increasing the product yield.

[0053] 2. The sheet-like contact structure of the present invention can be such that a plurality of sheet-like contacts are connected to the same frame, so that by positioning and fixing the sheet-like contact structure, the plurality of sheet-like contacts are positioned and fixed together.

[0054] 3. The sheet-like contact structure of the present invention has two frames, which are respectively arranged at both ends of the sheet-like contact. The frames at both ends are both connected to the sheet-like contact through connection ends, so that the sheet-like contact can be fixed more firmly.

[0055] 4. The sheet-like contact structure of the present invention forms a first cut with an acute angle or a right angle at the position where the side line of the connection end meets the side line of the sheet-like contact. After the sheet-like contact is initially fixed on the mandrel, the connection end and the sheet-like contact can be cut at the position of the first cut, so as to separate the sheet-like contact and the outer frame. A second cut or a break is provided on the frame. The second cut can cut the frame, so as to remove the frame from the mandrel. The break is a directly disconnected opening, and the frame can be directly removed from the mandrel at the position of the break. Further, the position where the second cut is provided is not opposite to the sheet-like contact, which is convenient for the operation during cutting and will not accidentally damage the sheet-like contact.

[0056] 5. The sheet-like contact structure of the present invention has a sheet-like contact as an arc-shaped contact piece. The radian of the sheet-like contact is basically the same as the radian of the frame at the corresponding position. After the frame is connected to the sheet-like contact through the connection end, the sheet-like contact structure is a standard cylindrical shape, and the inner diameter of the cylinder matches the inner diameter of the mandrel, so as to facilitate the installation of the sheet-like contact.

[0057] 6. The sheet-like contact structure of the present invention is provided with at least one positioning and engaging structure at one end of the sheet-like contact structure away from the sheet-like contact, so as to facilitate the axial positioning of the sheet-like contact structure on the mandrel. An angle is set between adjacent two positioning and engaging structures, which is convenient for the relative angle positioning of different sheet-like contacts on adjacent two sheet-like contact structures.

[0058] 7. The present invention also provides an annular contact structure, which includes an annular contact and a frame. There is at least one frame, which is suitable for being sleeved on a mandrel. A connecting end extends from one side of the frame facing the annular contact and is connected to the annular contact to form an annular contact structure. The advantage of the annular contact structure is that by setting the frame, the spacing requirements between annular contacts at different positions on the mandrel or between the annular contact and the sheet contact can be met. Obviously, for the annular contact structure to meet the above spacing requirements, it is simpler and easier to achieve, which is beneficial to improving production efficiency.

[0059] 8. In the annular contact structure of the present invention, an acute or right-angled first cut is formed at the position where the side line of the connecting end is connected to the side line of the annular contact. After the annular contact is preliminarily fixed on the mandrel, the connecting end and the annular contact can be cut off at the position of the first cut, so as to separate the annular contact and the outer frame. A second cut or a break is provided on the frame. The second cut can cut off the frame, so as to remove the frame from the mandrel. The break is a directly disconnected opening, and the frame can be directly removed from the mandrel at the position of the break.

[0060] 9. In the annular contact structure of the present invention, at least one positioning and engaging structure is provided at one end of the annular contact structure far from the annular contact, which is convenient for the axial positioning of the annular contact structure and other annular contact structures or sheet contact structures on the mandrel. A set angle is provided between two adjacent positioning and engaging structures, which is convenient for the relative angle positioning of different sheet contacts on the adjacent sheet contact structure.

[0061] 10. The present invention also provides an assembly method for a direction electrode. Using a sheet contact structure, after the connection between the wire and the sheet contact is completed first, the sheet contact structure is sleeved on the mandrel, so that the wire is installed in the through hole of the mandrel. First, the sheet contact is fixed, then the frame is separated, and then the material is filled to form a regular arc surface on the outer surface of the mandrel. The assembly method of the direction electrode of the present invention can improve the positioning accuracy of the sheet contact, reduce the positioning difficulty of the sheet contact, improve the assembly efficiency, and increase the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the prior art or the specific embodiments of the present invention, the following briefly introduces the drawings used in the description of the prior art or the specific embodiments.

[0063] Figure 1 It is an overall structural schematic diagram of the sheet contact structure of the present invention.

[0064] Figure 2 It is a structural schematic diagram of a multi-cavity tube.

[0065] Figure 3 It is a structural schematic diagram of removing a section of the outer layer of the multi-cavity tube to expose the channel.

[0066] Figure 4 Yes Figure 1 Isometric view of the snap-fit structure being set up.

[0067] Figure 5 Yes Figure 1 Isometric view of the snap-fit structure being set up at another position of

[0068] Figure 6 Yes Figure 1 Isometric view of multiple snap-fit structures being set up on both sides.

[0069] Figure 7 Yes Figure 1 Isometric view of multiple snap-fit structures being set up on one side and one snap-fit structure being set up on the other side.

[0070] Figure 8 Yes Figure 1 Isometric view of 18 protrusions and 18 grooves being set up on both side borders of

[0071] Figure 9 Are two Figure 8 Isometric view when the relative angle is 0°.

[0072] Figure 10 Are two Figure 8 Isometric view when the relative angle is 20°.

[0073] Figure 11 Are two Figure 8 Isometric view when the relative angle is 40°.

[0074] Figure 12 Are two Figure 8 Isometric view when the relative angle is 60°.

[0075] Figure 13 Are two Figure 8 Isometric view when the relative angle is 80°.

[0076] Figure 14 Are two Figure 8 Isometric view when the relative angle is 100°.

[0077] Figure 15 Isometric view of the annular contact structure.

[0078] Figure 16 Assembly drawing of two sheet-like contact structures being sandwiched between two annular contact structures on the mandrel 10.

[0079] Reference numerals: 1, sheet-like contact; 2, frame; 21, connection end; 3, first incision; 4, second incision; 5, engaging structure; 51, convex limiting block; 52, concave limiting groove; 6, annular contact; 7, frame; 71, connection end; 8, first incision; 9, second incision; 10, mandrel; 11, through groove; 101, channel; 102, through cavity. Detailed implementation manners

[0080] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0081] Embodiment 1

[0082] This embodiment provides a sheet-like contact structure, as Figure 1 shown, including: three sheet-like contacts 1; two frames 2, adapted to be sleeved on the mandrel 10; a connection end 21 extends out from one side of the frame 2 facing the sheet-like contact 1 and is connected to the sheet-like contact 1 to form the sheet-like contact structure.

[0083] As Figures 2-3 shown, the mandrel 10 is processed from a multi-cavity tube 100. Specifically, the outer layer of one section of the multi-cavity tube 100 is removed, and the channel 101 originally located inside the multi-cavity tube 100 is exposed to form a through groove 11. The through groove 11 and the channel 101 are used for threading the wires of the electrodes; a through cavity 102 is provided in the middle of the mandrel 10. The through cavity 102 extends along the axial direction of the mandrel 10, with both ends open and not communicating with the through groove 11 and the channel 101. The through cavity 102 is used for inserting guide wires (such as stainless steel wires, tungsten wires, etc.) to enhance the hardness of the electrode and facilitate subsequent implantation operations. When the sheet-like contact structure is sleeved on the mandrel 10, by defining the position of the sheet-like contact structure, the position of the sheet-like contact 1 on the mandrel 10 or its relative position with other contacts can be defined.

[0084] The above sheet-like contact 1 can also be one or two, or more than three; the frame 2 can also be one.

[0085] In this embodiment, the sheet-like contact 1 can be made of platinum or its alloy, iridium or its alloy material; the frame 2 can be an annular frame made of a metal or plastic with a lower hardness.

[0086] In the flake contact structure of this embodiment, when it is necessary to install the flake contact 1 at a specific position on the mandrel 10, there is no need to position and fix the individual flake contact 1 alone, but only the entire flake contact structure sleeved on the mandrel 10 needs to be positioned and fixed; comparing the structures of the flake contact 1 and the flake contact structure, obviously, it is easier to position and fix the cylindrical flake contact structure that can be sleeved on the mandrel 10 on the mandrel 10; therefore, by adopting the flake contact structure of this embodiment, it is possible to more easily achieve the positioning and fixing of the flake contact 1 on the mandrel 10, thereby reducing the assembly difficulty of the flake contact 1, improving the production efficiency, and increasing the product yield.

[0087] At the position where the side line of the connection end 21 is connected to the side line of the flake contact 1, a first cut 3 forming an acute angle or a right angle is formed. After the flake contact 1 is preliminarily fixed on the mandrel 10, the connection end 21 and the flake contact 1 can be cut off at the position of the first cut 3, so as to separate the flake contact 1 and the outer frame 2. The reason is that it is the flake contact 1 that needs to be fixed on the mandrel 10, rather than the frame 2. Therefore, when the positioning and fixing of the flake contact 1 are completed, the existence of the frame 2 is meaningless and needs to be removed, and its position is filled with a filling material.

[0088] A second cut 4 or a break is provided on the frame 2. The second cut 4 can cut off the frame 2, so as to remove the frame 2 from the mandrel 10; the break is a directly broken opening, and the frame 2 can be directly removed from the mandrel 10 at the position of the break. When using the second cut 4, further, the position where the second cut 4 is provided is not opposite to the flake contact 1, which is convenient for the operation during cutting and will not accidentally damage the flake contact; further, the frame 2 can be selected to be made of plastic, and the advantage of such a setting is that it is convenient to remove the first cut 3 and the second cut 4. It can also be selected to be made of the same metal material as the flake contact, which is convenient for the integral molding of the frame 2 and the flake contact 1. When using the break, the frame 2 can be further selected to be made of elastic plastic or shape memory metal. The position where the break is provided is not opposite to the flake contact 1. Further, the positions between the two ends of the break are set to be opposite, so that the flake contact structure can be elastically pulled apart by a certain distance from the position of the break. The advantage of such a setting is that, on the one hand, after the flake contact structure is pulled apart, it is convenient to sleeved the flake contact structure from the side of the shaft core 10 to a specific position on the shaft core 10, and on the other hand, it is convenient to remove the frame 2 from the shaft core 10 after the frame 2 and the flake contact 1 are separated.

[0089] The flake contact 1 is an arc-shaped contact piece, and the radian of the flake contact 1 is basically the same as the radian of the corresponding position of the frame 2. After the frame 2 is connected to the flake contact 1 through the connection end 21, the flake contact structure is a standard cylindrical shape, and the inner diameter of the cylindrical shape matches the outer diameter of the mandrel 10, so as to facilitate the installation of the flake contact 1.

[0090] AsFigure 4 As shown, a positioning snap-fit structure 5 is provided at one end of the frame 2 away from the sheet contact 1. Specifically, a recessed limiting groove 52 is provided on the left frame 2, and a raised limiting block 51 is provided on the right frame 2. The advantage of such a setting is that it facilitates the axial positioning of the sheet contact structure on the core shaft 10.

[0091] Axial positioning can be the positioning of two adjacent sheet contact structures. At this time, the raised limit block 51 set on the frame 2 on the right side of one sheet contact structure is inserted into the recessed limit groove 52 set on the frame 2 on the left side of the other sheet contact structure, thereby realizing the positioning and fixation of the two sheet contact structures on the core shaft 10.

[0092] The axial positioning can also be the positioning of a sheet contact structure and an annular contact structure (see Example 2); in this case, the raised stopper 51 or the recessed stopper 52 provided on a frame 2 of a sheet contact structure is plugged into the recessed stopper or the raised stopper provided on a frame 2 of an annular contact structure to achieve positioning and fixing (see Example 2). Figure 16 shown).

[0093] The axial positioning can also be achieved by plugging and fixing the sheet-like contact structure with other components fixed on the core shaft 10 and provided with recessed limiting grooves or raised limiting blocks.

[0094] Figure 4 In the sheet contact structure shown, the positions of the protruding limiting block 51 and the recessed limiting groove 52 are axially aligned, so that the parallel arrangement of the same sheet contact structure can be achieved.

[0095] Figure 5 In the sheet contact structure shown, the positions of the raised limiting block 51 and the recessed limiting groove 52 are staggered at a certain angle, so that the same sheet contact structure can be arranged at a relative certain angle.

[0096] like Figure 6 The sheet contact structure shown has three sheet contacts, and the interval between two adjacent sheet contacts is 120°; six raised limit blocks 51 and six recessed limit grooves 52 are provided on both frames 2, with the raised intervals being 60°, and the raised limit blocks 51 and recessed limit grooves 52 on both sides are staggered with each other in the axial direction, which can realize the transformation of relative angles of 0° and 60°.

[0097] like Figure 7The shown sheet contact structure also has 3 sheet contacts, with an interval of 120° between two adjacent sheet contacts. 6 protruding limiting blocks 51 and 6 recessed limiting grooves 52 are provided on one frame 2, with a 60° interval between the protrusions. One protruding limiting block 51 is provided on the other frame 2, and the protruding limiting block 51 provided on the other frame 2 is opposite to one recessed limiting groove 52 provided on the above-mentioned one frame 2, which can also achieve the transformation of relative angles of 0° and 60°.

[0098] Based on this idea, the number of the protruding limiting blocks 51 can also be set to be more different, depending on the angles to be actually transformed. For example, Figure 8 as shown, each side frame has 18 protruding limiting blocks 51 and 18 recessed limiting grooves 52, with a 20° interval between the protrusions, and the transformation of relative angles of 0°, 20°, 40°, 60°, 80°, and 100° can be achieved. As Figures 9-14 shown.

[0099] Embodiment 2

[0100] This embodiment provides an annular contact structure. As Figure 15 shown, it includes: an annular contact 6; a frame 7, which is one and is suitable for being sleeved on a mandrel 10; a connection end 71 extends from one side of the frame 7 facing the annular contact 6 and is connected to the annular contact 6 to form the annular contact structure.

[0101] When the annular contact structure is sleeved on the mandrel 10, by limiting the position of the annular contact structure, the position of the annular contact 6 on the mandrel 10 or its relative position with other contacts can be limited.

[0102] The annular contact structure of this embodiment can meet the spacing requirements between annular contacts at different positions on the mandrel 10 or between an annular contact and a sheet contact by setting the frame 7; obviously, for meeting the above spacing requirements, the annular contact structure is simpler and easier to achieve, which is beneficial to improving production efficiency.

[0103] As a deformation design scheme, the frame 7 can also be two, which are respectively arranged at both ends of the annular contact 6, so as to achieve the above spacing requirements from both ends.

[0104] An acute or right - angled first incision 8 is formed at the position where the side line of the connection end 71 is connected to the side line of the annular contact 6. After the annular contact 6 is preliminarily fixed on the mandrel 10, the connection end 71 and the annular contact 6 can be cut off at the position of the first incision 8, so as to separate the annular contact 6 and the outer frame 7.

[0105] A second cutout 9 or a break is provided on the frame 7. The second cutout 9 can cut off the frame 7 so that the frame 7 can be removed from the mandrel 10; the break is a directly broken opening, and the frame 7 can be directly removed from the mandrel 10 at the break position. The material setting principle of the frame 7 is the same as that of the frame 2, which will not be elaborated here.

[0106] At one end of the frame 7 away from the annular contact 6, at least one positioning and engaging structure is provided, and a set angle is provided between adjacent two of the positioning and engaging structures. The positioning and engaging structure is a convex limiting block and / or a concave limiting groove. The principle of setting the engaging structure here is the same as the principle of setting the engaging structure in Embodiment 1, both of which are for realizing the axial installation and relative angle transformation of the contacts, which will not be elaborated here.

[0107] Embodiment 3

[0108] This embodiment provides a method for assembling a direction electrode, including the following steps:

[0109] 1) Use the sheet contact structure in Embodiment 1 and complete the connection of the wire to the sheet contact 1;

[0110] 2) Sleeve the sheet contact structure on the mandrel 10, and install the wire in the through groove 11 and / or the channel 101 of the mandrel 10;

[0111] 3) Fix the sheet contact 1;

[0112] 4) Separate the sheet contact 1 from the frame 2 and remove the frame 2;

[0113] 5) Fill the material to form a regular arc surface on the outer surface. In step 3), the sheet contact 1 is fixed by filling the material at the position where the sheet contact 1 is not connected to the frame 2.

[0114] In step 5), at the gap after removing the frame 2, fill the material again to form a regular arc surface on the outer surface.

[0115] In this embodiment, the filling material is polyurethane. Epoxy resin can also be used as the filling material.

[0116] In step 2), it further includes the step of assembling and installing at least two of the sheet contact structures on the mandrel 10.

[0117] As a deformation scheme, it further includes the step of assembling and installing at least one of the sheet contact structures and at least one annular contact.

[0118] As a deformation scheme, it further includes the step of assembling and installing at least one of the sheet contact structures and at least one annular contact structure as described in Embodiment 2.

[0119] As a variant embodiment, it further includes the step of assembling at least one of the sheet-like contact structures, at least one annular contact, and at least one of the annular contact structures as described in Embodiment 2.

[0120] In step 2), the axial distance between the sheet-like contact structure and other contact structures and / or contacts is determined by the frame 2, and the relative angle between the sheet-like contact structure and other contact structures and / or contacts is determined by the engaging structure 5.

[0121] Embodiment 4

[0122] This embodiment provides a directional electrode manufactured by using the assembly method described in Embodiment 3.

[0123] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. A sheet-like contact structure, characterized in that, Comprising: A sheet-like contact (1), at least one; A frame (2), at least one, adapted to be sleeved on a mandrel (10); A connecting end (21) extends from a side of the frame (2) facing the sheet-like contact (1) and is connected to the sheet-like contact (1) to form the sheet-like contact structure; When the sheet-like contact structure is sleeved on the mandrel (10), by defining the position of the sheet-like contact structure, the position of the sheet-like contact (1) on the mandrel (10) or the relative position with other contacts can be defined; An acute or right-angled first cut (3) is formed at the position where the side line of the connecting end (21) of the frame meets the side line of the sheet-like contact (1), and the first cut (3) is used to cut off the connecting end and the sheet-like contact (1) at the position of the first cut (3) after the sheet-like contact (1) is initially fixed on the mandrel (10).

2. The sheet-like contact structure according to claim 1, wherein: There are at least two sheet-like contacts (1), and there is a gap between adjacent two sheet-like contacts (1).

3. The sheet-like contact structure according to claim 1, wherein: There are two frames (2), which are respectively arranged at both ends of the sheet-like contact (1).

4. The sheet-like contact structure according to claim 1, characterized in that: At least one positioning and engaging structure (5) is provided at one end of the frame (2) far from the sheet-like contact (1), and there is a set angle between adjacent two positioning and engaging structures (5).

5. An annular contact structure, characterized in that, Comprising: An annular contact (6); A frame (7), at least one, adapted to be sleeved on a mandrel (10); A connecting end (71) extends from a side of the frame (7) facing the annular contact (6) and is connected to the annular contact (6) to form the annular contact structure; When the annular contact structure is sleeved on the mandrel (10), by defining the position of the annular contact structure, the position of the annular contact (6) on the mandrel (10) or the relative position with other contacts can be defined; An acute or right-angled first cut (8) is formed at the position where the side line of the connecting end (71) of the frame meets the side line of the annular contact (6), and the first cut (8) is used to cut off the connecting end and the annular contact (6) at the position of the first cut (8) after the annular contact (6) is initially fixed on the mandrel (10).

6. A method for assembling a stimulating end electrode, characterized in that, Comprising the following steps: 1) Using the sheet-like contact structure described in any one of claims 1-4, complete the connection of the wire to the sheet-like contact (1); 2) Sleeve the sheet-like contact structure on the mandrel (10), and the wire is installed in the through groove (11) and / or the channel (101) of the mandrel (10); 3) Fix the sheet-like contact (1); 4) Separate the sheet-like contact (1) from the frame (2) and remove the frame (2); 5) Fill the material to form a regular arc surface on the outer surface; In step 3), the sheet-like contact (1) is fixed by filling the material at a position where the sheet-like contact (1) is not connected to the frame (2).

7. The assembly method according to claim 6, characterized in that: In step 5), the material is filled again at the gap after the frame (2) is removed to form a regular arc surface on the outer surface.

8. The assembly method according to claim 7, characterized in that: Step 2) further includes the step of combinatorially mounting at least two of the sheet-like contact structures on the mandrel (10); or the step of combinatorially mounting at least one of the sheet-like contact structures and at least one annular contact; or the step of combinatorially mounting at least one of the sheet-like contact structures and at least one of the annular contact structures as claimed in claim 5; or the step of combinatorially mounting at least one of the sheet-like contact structures, at least one annular contact, and at least one of the annular contact structures as claimed in claim 5.

Images