Auxiliary tool

Abstract

The utility model belongs to the technical field of medical instruments, and discloses an auxiliary tool. The auxiliary tool comprises a clamping part, the clamping part is provided with an installation channel extending in the first direction, the installation channel is used for containing a wire, and the clamping part applies one or more of friction force, resistance in the axial direction of the wire and pressure in the radial direction of the wire to the wire through the inner wall of the installation channel so that the clamping part can clamp the wire. According to the utility model, the original soft wire can keep certain rigidity under the action of the clamping part, the axial force application conduction of the wire is enhanced in the axial direction of the wire, when a user inserts the wire into a butt joint channel, the wire cannot be bent, twisted and locally deformed due to stress, and the efficiency, the safety and the reliability of an implantation operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an auxiliary tool. Background Technology

[0002] Deep brain stimulation (DBS), as an important neuromodulation therapy, is widely used in the clinical treatment of neurological diseases such as Parkinson's disease and epilepsy. Its core components include implanted electrode leads in the brain, an implantable pulse generator (IPG) implanted in the chest, and extension leads connecting the two. During the procedure, the electrode leads are precisely implanted into the target brain region using stereotactic techniques, while the IPG is implanted subcutaneously in the patient's chest. The two components form an electrical signal transmission pathway through the extension leads. The two ends of the extension leads connect to the electrode leads and the IPG channel, respectively, relying on reliable contact between the contacts to ensure circuit continuity. When the pulse generator is implanted in the skull, the electrode leads are directly connected to the pulse generator.

[0003] In the existing technology, both electrode wires and extension wires are made of flexible materials (such as silicone-coated multi-stranded metal wires), which have weak axial mechanical properties and are difficult to directly transmit the thrust applied by the operator.

[0004] When inserting the lead wires into the corresponding connection channels, whether it is the insertion of the extension lead wire into the electrode lead wire, the insertion of the extension lead wire into the IPG channel, or the insertion of the electrode lead wire into the IPG channel, the following problems are likely to occur: 1. The flexibility of the lead wire prevents the axial thrust from being effectively transmitted to the end of the lead wire, requiring repeated adjustments to the angle and direction of force, thus prolonging the operation time; 2. Bending or twisting may cause the internal metal wires of the lead wire to break or the insulation layer to be damaged, affecting the circuit conductivity and long-term reliability; 3. Incomplete insertion or lead wire deformation may result in inaccurate contact between the contacts, causing signal transmission interruption or impedance abnormalities. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary tool for enhancing the axial force transmission of the wire and preventing bending deformation, thereby improving the safety, efficiency and reliability of implantation surgery.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An assistive tool, comprising:

[0008] The clamping part has an installation channel extending in a first direction for accommodating a wire. The clamping part applies one or more of the following actions to the wire through the inner wall of the installation channel: frictional force, resistance along the axial direction of the wire, and pressure along the radial direction of the wire, so as to clamp the wire tightly.

[0009] As an optional auxiliary tool, the installation channel includes several straight segments and several bent segments, the straight segments extending along the first direction and the bent segments extending along the second direction, the first direction and the second direction being set at an angle.

[0010] As an optional auxiliary tool, the inner wall of the installation channel is provided with a plurality of friction parts spaced apart along the first direction, and the friction parts are serrated or raised.

[0011] As an alternative to the auxiliary tool, the inner wall of the installation channel has an undulating wave structure along the first direction.

[0012] As an optional auxiliary tool, the inner wall of the installation channel is provided with a plurality of support portions spaced apart along the first direction, and the support portions protrude from the surface of the inner wall.

[0013] As an optional auxiliary tool, the inner wall of the installation channel is provided with multiple arrangement paths along the first direction, and multiple support parts are arranged at intervals along the arrangement paths, with the support parts of different arrangement paths being staggered in the first direction.

[0014] As an optional auxiliary tool, the mounting channel is provided with transition portions at opposite ends along the first direction, and the radial dimension of the transition portions gradually increases towards the end face of the clamping portion.

[0015] As an optional auxiliary tool, the transition portion and the wire are either transitionally fitted or clearance fitted.

[0016] As an optional auxiliary tool, the auxiliary tool further includes a snap-fit ​​portion and a slot portion disposed on the clamping portion, wherein the snap-fit ​​portion is used to snap-fit ​​into the slot portion.

[0017] As an optional auxiliary tool, the slot portion is provided with several, and the snap-fit ​​portion is selectively snapped onto any one of the slot portions. By switching the engagement of the slot portion and the snap-fit ​​portion, the radial dimension of the mounting channel can be adjusted.

[0018] Beneficial effects:

[0019] In this embodiment, the inner wall of the mounting channel acts on the wire, including friction, resistance along the wire's axial direction, and pressure along the wire's radial direction, or a combination of these forces. This maintains the rigidity of the originally flexible wire under the clamping action, enhancing the axial force transmission of the wire. When the user inserts the wire into the docking channel, the wire will not bend, twist, or deform due to force. The axial thrust applied by the user can be effectively transmitted to the end of the wire, eliminating the need for repeated adjustments to the angle and direction of force, saving surgical time and improving surgical efficiency. It also eliminates the risk of internal wire breakage or insulation damage caused by bending or twisting, ensuring circuit continuity and long-term reliability. Furthermore, it further ensures proper wire insertion and precise contact alignment, guaranteeing the stability of the electrical connection, avoiding contact resistance that affects electrical performance, and improving the safety and reliability of the implantation surgery. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first structure of the auxiliary tool for clamping the wire provided in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the auxiliary tool provided in the embodiment of the present invention, which has a bending section and a friction part in the installation channel;

[0022] Figure 3 This is a schematic diagram of the second structure of the auxiliary tool for clamping the wire provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the auxiliary tool provided in the embodiment of the present invention, which has a friction part and a wave structure in the installation channel;

[0024] Figure 5 This is a schematic diagram of the third structure of the auxiliary tool for clamping the wire provided in this embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the auxiliary tool with a support portion provided in the installation channel according to an embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram of the fourth structure of the auxiliary tool for clamping wires provided in this embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the auxiliary tool provided in this embodiment of the utility model, which has a clamping part and a slot part on the clamping part;

[0028] In the picture:

[0029] X, first direction; Y, second direction; 100, wire; 200, pulse generator;

[0030] 1. Clamping part; 11. Snap-fit ​​part; 12. Slot part; 2. Installation channel; 21. Straight section; 22. Bending section; 23. Friction part; 24. Support part; 25. Transition part; 3. Grip part. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] Please see the appendix Figure 1 -Appendix Figure 4This embodiment relates to an auxiliary tool, which includes a clamping part 1. The clamping part 1 is provided with an installation channel 2 extending along a first direction X. The installation channel 2 is used to accommodate a wire 100. The clamping part 1 applies one or more of the following actions to the wire 100 through the inner wall of the installation channel 2: frictional force, resistance along the axial direction of the wire 100, and pressure along the radial direction of the wire 100, so that the clamping part 1 clamps the wire 100.

[0036] Specifically, the mounting channel 2 is a through groove that passes through the clamping part 1. The radial dimension of the mounting channel 2 is slightly smaller than the diameter of the wire 100 so that the wire 100 is placed in the mounting channel 2. The clamping part 1 uses its own clamping action to keep the wire 100 in a straight state after it is placed in the clamping part 1.

[0037] It should be noted that the lead wire 100 can be either an electrode lead wire or an extension lead wire. When the lead wire 100 is an extension lead wire, it is clamped and connected to the IPG using this auxiliary tool. Similarly, when the lead wire 100 is an electrode lead wire, it can be clamped and connected directly to the IPG or to an extension lead using this auxiliary tool.

[0038] In this embodiment, the inner wall of the mounting channel 2 acts on the wire 100. This action includes one or a combination of friction, resistance along the axial direction of the wire 100, and pressure along the radial direction of the wire 100. This allows the originally flexible wire 100 to maintain a certain rigidity under the action of the clamping part 1, enhancing the axial force transmission of the wire 100. When the user inserts the wire 100 into the corresponding channel of the pulse generator 200, the wire 100 will not bend, twist, or deform due to force. The axial thrust applied by the user can be effectively transmitted to the end of the wire 100 without repeatedly adjusting the angle and direction of force, saving surgical time and improving surgical efficiency. It also eliminates the risk of internal wire breakage or insulation damage caused by bending or twisting, ensuring circuit conductivity and long-term reliability. Furthermore, it further ensures that the wire 100 is inserted correctly and the contacts are precisely aligned, guaranteeing the stability of the electrical connection and avoiding contact resistance that affects electrical performance due to improper insertion, thus improving the safety and reliability of the implantation surgery.

[0039] Please see the appendix Figure 1 and attached Figure 2 Optionally, the installation channel 2 includes a number of straight segments 21 and a number of bent segments 22. The straight segments 21 extend along a first direction X, and the bent segments 22 extend along a second direction Y. The first direction X and the second direction Y are set at an angle.

[0040] In this embodiment, the first direction X is selected as the horizontal direction, and the second direction Y is at a preset angle relative to the horizontal direction. This preset angle is an acute angle and cannot be too large to avoid excessive bending of the conductor 100, which could damage the insulation layer and the internal metal core of the conductor 100. Furthermore, the radial dimension of the bent section 22 can be the same as or different from the radial dimension of the straight section 21. When they are different, the radial dimension of the bent section 22 can be slightly smaller than that of the straight section 22 to increase the axial resistance when the conductor 100 passes through the bent section 22. A curved surface is used for transition at the junction between the straight section 21 and the bent section 22 to avoid stress concentration on the outer wall of the conductor 100. Those skilled in the art will understand that by adjusting the number of alternating straight sections 21 and bent sections 22, the magnitude of the axial resistance to the conductor 100 can be adjusted, thereby further adjusting the axial holding force of the conductor 100.

[0041] This auxiliary tool, through the straight section 21 and the bent section 22, forms an internally curved installation channel 2, which can increase the axial resistance of the wire 100 inside the installation channel 2, thereby increasing the axial holding force of the wire 100.

[0042] Please see the appendix Figure 3 and attached Figure 4 Optionally, a plurality of friction parts 23 are provided at intervals along the first direction X on the inner wall of the installation channel 2.

[0043] In this embodiment, the inner wall of the installation channel 2 may be provided with friction parts 23 of various forms and shapes, and the friction parts 23 may be distributed according to certain rules or randomly.

[0044] Optionally, the friction part 23 is a protruding structure provided on the inner wall of the mounting channel 2.

[0045] Specifically, the protrusion structure can be conical, pyramidal, frustum, prismatic, or partially spherical, etc., and multiple protrusions are distributed on the inner wall of the installation channel 2.

[0046] In this embodiment, the friction part 23 with the protruding structure can increase the friction of the wire 100 in the mounting channel 2, thereby further increasing the axial holding force of the wire 100.

[0047] Optionally, the friction part 23 is a serrated structure provided on the inner wall of the mounting channel 2.

[0048] Specifically, the serrated structure of the friction part 23 extends along the first direction X, and multiple serrations are distributed on the inner wall of the mounting channel 2.

[0049] In this embodiment, the friction part 23 with a sawtooth structure can also increase the friction of the wire 100 in the mounting channel 2, thereby further increasing the axial holding force of the wire 100.

[0050] Those skilled in the art will understand that the friction part 23 can have various shapes and distribution patterns. The shape and distribution pattern of the friction part 23 can be arbitrarily selected on the inner wall of the same mounting channel 2. This embodiment does not limit the specific shape and distribution of the friction part 23. Furthermore, the friction part 23 can be combined with the straight segment 21 and the bent segment 22 to further increase the axial holding force of the conductor 100.

[0051] Optionally, the top surface of the protruding structure is an arc-shaped surface.

[0052] In this embodiment, regardless of the type of protrusion structure selected for the friction part 23, the top surface of the protrusion structure needs to be formed into an arc-shaped surface so that when the wire 100 is clamped in the mounting channel 2, the protrusion structure can avoid damaging the outer wall of the wire 100 and improve safety.

[0053] Please see the appendix Figure 3 and attached Figure 4 Optionally, the inner wall of the installation channel 2 has an undulating wave structure along the first direction X.

[0054] In this embodiment, the inner wall of the mounting channel 2 has an undulating wave structure. The bending angle of the wave structure is smaller than that of the bending segment 22 mentioned above. However, the wave structure is a continuous structure, while the bending segment 22 is an alternating structure. Although the undulation of the wave structure is small, it can still penetrate the clamping part 1 to increase the axial resistance of the wire 100 placed inside the mounting channel 2, thereby improving the axial holding force. At the same time, the wave structure can reduce the stress at the bending position and improve the bending state of the wire 100 after long-term clamping.

[0055] It is understandable that various types of friction parts 23 can be added to the wavy inner wall of the installation channel 2 to further increase the friction and enhance the axial holding force of the wire 100.

[0056] Please see the appendix Figure 5 and attached Figure 6 Optionally, the inner wall of the installation channel 2 is provided with a plurality of support portions 24 at intervals along the first direction X, and the support portions 24 protrude from the surface of the inner wall.

[0057] Specifically, the multiple support portions 24 can be arranged in a straight line along the first direction X and at equal intervals, or arranged in a matrix distribution. The support portions 24 have a convex hull structure.

[0058] In this embodiment, by providing multiple support portions 24 at intervals, the conductor 100 can form multiple smaller bending structures, thereby increasing axial resistance and improving axial holding force.

[0059] Furthermore, the inner wall of the installation channel 2 is provided with multiple arrangement paths along the first direction X, and multiple support parts 24 are arranged at intervals along the arrangement paths. The support parts 24 of different arrangement paths are staggered in the first direction X.

[0060] Specifically, by setting multiple arrangement paths and staggering the support portions 24 in the first direction X on different paths, it is possible to increase axial resistance and thus improve axial holding force. At the same time, it can also avoid the problem of increasing the compressive force on the wire 100 passing through a certain cross-sectional position of the clamping portion 1, thereby damaging the structure of the wire 100 and affecting its electrical performance.

[0061] Please continue to refer to the appendix. Figure 4 Optionally, the mounting channel 2 is provided with transition portions 25 at opposite ends along the first direction X, and the radial dimension of the transition portions 25 gradually increases towards the end face of the clamping portion 1.

[0062] Specifically, the transition portion 25 creates flared openings at both ends of the mounting channel 2, thus preventing stress concentration. The radial dimension of the transition portion 25 gradually increases towards the end face of the clamping portion 1, ensuring that the clamping action is gradually released and preventing damage to the wire 100 due to excessive clamping force at its ends.

[0063] In this embodiment, the transition portion 25 and the wire 100 can be either transitionally fitted or with a clearance fit, so that the wires 100 located in the transition portion 25 have sufficient clearance to avoid being subjected to excessive compressive force. It should be noted that the fit between the transition portion 25 and the wire 100 can be entirely transitionally fitted, entirely with a clearance fit, or a combination of transitionally fitted and clearance fitted.

[0064] Optionally, the inner wall of the mounting channel 2 and the end face of the clamping part 1 form an arc-shaped structure.

[0065] In this embodiment, by using an arc-shaped transition at the junction of the inner wall of the mounting channel 2 and the end face of the clamping part 1, damage caused by stress concentration at the end position of the clamping part 1 can be avoided, thereby ensuring the stability of the electrical performance of the conductor 100.

[0066] Please see the appendix Figure 7 and attached Figure 8 Optionally, this auxiliary tool includes a snap-fit ​​part 11 and a slot part 12 provided on the clamping part 1, wherein the snap-fit ​​part 11 is used to snap-fit ​​with the slot part 12.

[0067] In this embodiment, the latching part 11 is a buckle provided on the clamping part 1. The length of the buckle is equal to the extension length of the clamping part 1 in the first direction X, so that the clamping part 1 clamps the wire 100 in the entire first direction X, ensuring that the wire 100 is subjected to balanced force in the first direction X. The slot part 12 is provided with a slot, the length of which is equal to or greater than the length of the buckle, to ensure the stability of the force on the buckle.

[0068] Furthermore, the slot portion 12 is provided with several, and the engaging portion 11 is selectively engaged on any one of the slot portions 12. By switching the engagement of the slot portion 12 and the engaging portion 11, the radial dimension of the mounting channel 2 can be adjusted.

[0069] In this embodiment, multiple slots 12 are arranged sequentially along the circumference. When different slots 12 engage with the latching parts 11, the radial dimension of the slots 12 can change in a stepped manner, so that the radial dimension of the installation channel 2 changes in a stepped manner synchronously, thereby adapting to the installation of wires 100 of different sizes and specifications.

[0070] Please continue to refer to the appendix. Figure 7 and attached Figure 8 This auxiliary tool also includes a gripping part 3, which is connected to the clamping part 1.

[0071] In this embodiment, the gripping part 3 is provided with a strip groove extending along the first direction X. The strip groove can install part of the structure of the wire 100. The gripping part 3 can be easily gripped by the user with bare hands, thereby moving this auxiliary tool to drive the wire 100 to be inserted into the pulse generator 200.

[0072] In this embodiment, the strip groove can be used for guiding and limiting the wire 100 during installation, rather than for clamping the wire 100. Therefore, the strip groove and the wire 100 are fitted with a clearance or transition fit.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An auxiliary tool, characterized in that, include: The clamping part (1) is provided with an installation channel (2) extending along a first direction (X). The installation channel (2) is used to accommodate a wire (100). The clamping part (1) applies one or more of the following actions to the wire (100) through the inner wall of the installation channel (2): frictional force, resistance along the axial direction of the wire (100), and pressure along the radial direction of the wire (100), so that the clamping part (1) clamps the wire (100).

2. The auxiliary tool according to claim 1, characterized in that, The installation channel (2) includes several straight segments (21) and several bent segments (22). The straight segments (21) extend along the first direction (X), and the bent segments (22) extend along the second direction (Y). The first direction (X) and the second direction (Y) are set at an angle.

3. The auxiliary tool according to claim 1, characterized in that, The inner wall of the installation channel (2) is provided with a plurality of friction parts (23) spaced apart along the first direction (X), and the friction parts (23) are sawtooth structures or protrusion structures.

4. The auxiliary tool according to claim 1, characterized in that, The inner wall of the installation channel (2) has an undulating wave structure along the first direction (X).

5. The auxiliary tool according to claim 1, characterized in that, The inner wall of the installation channel (2) is provided with a plurality of support portions (24) spaced apart along the first direction (X), and the support portions (24) protrude from the surface of the inner wall.

6. The auxiliary tool according to claim 5, characterized in that, The inner wall of the installation channel (2) is provided with multiple arrangement paths along the first direction (X), and multiple support parts (24) are arranged at intervals along the arrangement paths. The support parts (24) of different arrangement paths are staggered in the first direction (X).

7. The auxiliary tool according to claim 1, characterized in that, The mounting channel (2) is provided with transition portions (25) at opposite ends along the first direction (X), and the radial dimension of the transition portion (25) gradually increases toward the end face of the clamping portion (1).

8. The auxiliary tool according to claim 7, characterized in that, The transition portion (25) and the conductor (100) are either in a transition fit or a gap fit.

9. The auxiliary tool according to claim 1, characterized in that, The auxiliary tool also includes a snap-fit ​​part (11) and a slot part (12) provided on the clamping part (1), wherein the snap-fit ​​part (11) is used to snap-fit ​​with the slot part (12).

10. The auxiliary tool according to claim 9, characterized in that, The slot (12) is provided with a plurality of slots, and the snap-fit ​​part (11) is selectively snapped onto any one of the slots (12). The radial dimension of the mounting channel (2) can be adjusted by switching the slot (12) and the snap-fit ​​part (11) to engage.

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