A wire propeller and wire propeller assembly

Abstract

The application provides a wire pusher and a wire pusher assembly, and belongs to the technical field of medical devices, and comprises a pusher body and a sliding block, wherein the sliding block is arranged on the pusher body, the sliding block has a first position of sliding to one end of the pusher body and a second position of sliding to the other end of the pusher body, and the sliding block can drive the wire to move forward when the sliding block slides from the first position to the second position; wherein the clamping strips of the upper sliding block and the lower sliding block jointly clamp the wire in the push chamber; the wire pusher of the application limits the wire in the radial direction through the push chamber of the pusher body, only leaves the connection contact section of the wire for being inserted into the pulse generator top cover as a whole, and then pushes the wire towards the pulse generator through the sliding block; since the wire is limited in the radial direction in the push chamber, the wire will not be bent in the process of being pushed, so that the convenience and reliability of pushing the wire into the pulse generator are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a wire pusher and a wire pusher assembly. Background Technology

[0002] With the development of neuromodulation technology, neurostimulator technologies, represented by deep brain stimulators, vagus nerve stimulators, spinal cord stimulators, and sacral nerve stimulators, are being increasingly applied and promoted. Correspondingly, the manufacturing requirements for lead products involved in stimulator systems are also constantly increasing. Since leads with lower stiffness are more conducive to patient movement, can reduce discomfort at the implantation site, and improve lead lifespan, making leads with lower stiffness and greater fatigue resistance is a current and future trend.

[0003] As lead wires become increasingly flexible, inserting them into the cap of an implantable pulse generator (IPG) becomes more difficult. Currently, insertion typically relies on the physician's hand to hold the lead. However, the position of the lead, the clamping force, the pushing force, the distance and depth of each insertion are all uncertain factors. Consequently, the influence of the physician's hand on the lead is unpredictable, and different methods result in varying physician experiences.

[0004] For example, during the procedure, if the distance between the lead and the IPG cap is too great, the lead may be difficult to insert due to significant bending and deformation, or even cause permanent deformation, thus affecting the pulse generator's function. Furthermore, while using tools such as tweezers and screwdrivers to assist lead insertion can solve the problem to some extent, the gripping range of these tools is not effectively limited, potentially causing minor or severe damage to the lead.

[0005] Chinese patent documents CN113675664A and CN113648537A can solve the problems of difficult lead insertion and inaccurate lead insertion sites mentioned above. However, in special scenarios where the lead extends very shortly outside the patient's body, the aforementioned patented products may face limitations in operating space. Furthermore, because they secure the lead using a U-shaped clamp, the driving force provided is limited. With the advent of IPGs with more contact points, if the required driving force increases exponentially, the lead advancement function of the aforementioned patented products may fail. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the wire being difficult to insert when inserting the wire into the IPG top cover in the prior art, thereby providing a wire pusher and wire pusher assembly that can improve the convenience and reliability of wire insertion.

[0007] This invention provides a wire actuator, comprising:

[0008] The thruster body has an openable upper shell and a lower shell, and a thrust cavity is formed between the upper shell and the lower shell for radially limiting the wire.

[0009] A slider is slidably disposed on the propeller body in a direction parallel to the axis of the propulsion cavity. The slider has a clamping bar that extends into the propulsion cavity to hold the wire inside the propulsion cavity. The slider has a first position on the propeller body that slides to one end of the propeller body and a second position that slides to the other end of the propeller body. When the slider slides from the first position to the second position, it can drive the wire to move forward.

[0010] The slider has an upper slider and a lower slider that cooperate with each other. The upper slider is slidably mounted on the upper shell, and the lower slider is slidably mounted on the lower shell. After the upper shell and the lower shell are closed, the upper slider and the lower slider together clamp the wire in the propulsion cavity through the clamping strip.

[0011] Optionally, after the upper shell and the lower shell are closed, the upper slider and the lower slider are interlocked by a linkage block to achieve linkage.

[0012] Optionally, the upper slider has an upper linkage block, and the lower slider has a lower linkage block for cooperating with the upper linkage block. After the upper shell and the lower shell are closed, the upper linkage block on the upper slider and the lower linkage block on the lower slider block block each other in their respective movement paths.

[0013] Optionally, the upper shell and the lower shell can be opened by rotation.

[0014] Optionally, one side of the upper shell and the lower shell are rotatably connected by a pivot, and the other side of the upper shell and the lower shell are provided with mutually offset pivoting wings.

[0015] Optionally, the thruster body has multiple thrust chambers arranged in parallel.

[0016] Optionally, the propeller body has a groove for restricting the sliding of the slider, and the slider has a sliding latch that partially extends into the groove.

[0017] Optionally, at least when the slider is in the first position, there is a limiting structure between the slider and the propeller body for limiting the slider.

[0018] Optionally, when the slider is in the first position and the second position, a limiting structure for limiting the slider is provided between the slider and the propeller body.

[0019] Optionally, the limiting structure includes: a first translational limiting buckle disposed on the pusher body for cooperating with the slider, and a second translational limiting buckle disposed on the slider for cooperating with the first translational limiting buckle; when the slider moves and advances in the groove and reaches the first position, the slider is temporarily locked by the cooperation of the second translational limiting buckle and the first translational limiting buckle.

[0020] Optionally, the portion of the slider that exposes the propeller body is provided with an anti-slip strip.

[0021] This invention provides a wire actuator assembly, comprising the wire actuator described in any one of the above embodiments; and further comprising:

[0022] The alignment tool has a limiting groove for opposing the propulsion cavity of the propeller body, the front end of the limiting groove being closed for limiting the end of the wire.

[0023] Optionally, the alignment tool is detachably connected to the wire pusher; or, the alignment tool is rotatably connected to the wire pusher.

[0024] Optionally, the alignment tool has a socket, and the pusher body has a protruding plate that mates with the socket. The pusher body and the alignment tool are connected by inserting the protruding plate into the socket.

[0025] Optionally, the protruding plate has a U-shaped cross-section, an inwardly recessed neck, and a protruding rib on the socket that engages with the neck.

[0026] Optionally, the socket has an inwardly extending cover plate, and the sides of the protruding plate abut against the lower surface of the cover plate.

[0027] Optionally, the positioning tool has a limiting groove that is an open half-open groove.

[0028] The technical solution of this invention has the following advantages:

[0029] 1. The wire pusher provided by the present invention, when used to insert a wire into the upper shell of a pulse generator, radially restricts the wire through the pushing cavity of the pusher body, leaving only the connecting contact section of the wire for overall insertion into the top cover of the pulse generator. The wire is clamped and fixed in the pushing cavity by a slider, and then the slider is slid to push the wire toward the pulse generator. Since the wire is radially restricted in the pushing cavity, the wire will not bend during the pushing process, thereby improving the convenience and reliability of pushing the wire into the pulse generator.

[0030] The direct reason why existing technologies struggle to push the wire into the pulse generator is that the resistance encountered during insertion into the IPG cap exceeds the supporting force of a certain length of wire. On one hand, the reaction force of the resistance on the wire is consumed by the wire's own deformation, making it difficult to relay the resistance; on the other hand, the thrust applied to the wire is also consumed by the wire's own deformation, making it difficult to transmit the thrust. Therefore, the wire pusher assembly provided by this invention restricts the radial deformation of the wire through the push chamber, thereby allowing the thrust acting on the wire to be fully used for wire propulsion and improving the feel of wire insertion.

[0031] 2. The wire pusher provided by the present invention has a pusher body that can be separated. The pusher body can be divided into two halves by separation. At this time, the pusher body no longer has a clamping effect on the wire. Therefore, when the pusher body and the wire are separated, the wire can be separated in the radial or axial direction, thereby avoiding the problem that the wire is carried out of the pulse generator top cover by the pusher body during separation.

[0032] 3. The wire pusher assembly provided by the present invention, through the cooperation of the alignment tool and the pusher body, can limit the length of the wire exposed from the pusher body, that is, control the wire to be exposed from the connecting contact point section of the pusher body, thereby controlling the length of the overall pusher wire and ensuring the accuracy of pushing the wire into the pulse generator. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a perspective view of the wire thruster assembly according to an embodiment of the present invention;

[0035] Figure 2 yes Figure 1 Exploded view;

[0036] Figure 3 This is a top view of the wire thruster assembly according to an embodiment of the present invention;

[0037] Figure 4 This is a bottom view of the wire thruster assembly according to an embodiment of the present invention;

[0038] Figure 5 This is a left view of the wire thruster assembly according to an embodiment of the present invention;

[0039] Figure 6 This is a right view of the wire thruster assembly according to an embodiment of the present invention;

[0040] Figure 7 This is an assembly top view of an embodiment of the present invention;

[0041] Figure 8 yes Figure 7 Sectional view of line AA in the middle;

[0042] Figure 9 yes Figure 7 A cross-sectional view of the CC line;

[0043] Figure 10 yes Figure 7 Sectional view of the DD line;

[0044] Figure 11 This is a perspective view of the lower shell according to an embodiment of the present invention;

[0045] Figure 12 This is an axial bottom view of the lower shell according to an embodiment of the present invention;

[0046] Figure 13 This is an axial top view of the upper shell according to an embodiment of the present invention;

[0047] Figure 14 This is an axial bottom view of the upper shell according to an embodiment of the present invention;

[0048] Figure 15a This is a perspective view of the upper slider according to an embodiment of the present invention;

[0049] Figure 15b This is a perspective view of the sliding block according to an embodiment of the present invention;

[0050] Figure 16 This is a side view of the slider according to an embodiment of the present invention;

[0051] Figure 17 This is a perspective view of the main body of the thruster according to an embodiment of the present invention;

[0052] Figure 18 This is a perspective view of the alignment tool according to an embodiment of the present invention;

[0053] Figures 19-25This is a schematic diagram illustrating the usage process of an embodiment of the present invention;

[0054] Figure 26 This is a schematic diagram of a dual-wire application scenario according to an embodiment of the present invention.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Thruster body; 2. Upper shell; 3. Lower shell; 4. Upper slider; 5. Lower slider; 6. Alignment tool; 7. Limiting groove; 8. Thrusting cavity; 9. Rotating wing; 10. Extending plate; 11. Neck; 12. Upper sliding groove; 13. Lower sliding groove; 14. Upper guide rail groove; 15. Lower guide rail groove; 16. First translational limit latch; 17. Sliding latch; 18. Upper linkage block; 19. Lower linkage block; 20. Pulse generator; 21. Clamping bar; 22. Insert; 23. Rib; 24. Cover plate; 25. Guide rail; 26. Lug; 27. Second translational limit latch; 28. Anti-slip strip; 29. ​​Rotating shaft; 30. Upper locking latch; 31. Lower locking latch; 32. Marker; 33. Limiting protrusion; 34. Handheld neck. Detailed Implementation

[0057] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0061] Example 1

[0062] This embodiment provides a wire pusher for assisting in inserting the wire 25 into the top cover of the pulse generator 20.

[0063] like Figure 1 As shown, the wire pusher includes a pusher body 1 and a slider slidably disposed on the pusher body 1. The pusher body 1 has an openable upper shell 2 and a lower shell 3, and a push cavity 8 is formed between the upper shell 2 and the lower shell 3 for radially limiting the wire 25. The slider has a clamping bar 21 that extends into the push cavity 8 to clamp the wire 25 within the push cavity 8. The slider has a first position on the pusher body 1 that slides to one end of the pusher body 1, and a second position that slides to the other end of the pusher body 1. When the slider slides from the first position to the second position, it can drive the wire 25 forward. Specifically, the slider has an upper slider 4 and a lower slider 5 that cooperate with each other. The upper slider 4 is slidably mounted on the upper shell 2, and the lower slider 5 is slidably mounted on the lower shell 3. After the upper shell 2 and the lower shell 3 are closed, the upper slider 4 and the lower slider 5 clamp the wire 25 within the push cavity 8 together through the clamping bar 21.

[0064] like Figure 19 As shown, the insertion portion of the wire 25 includes an "easy-to-insert" section (connecting contact point section) and a "difficult-to-insert" section (without connecting contact point). The wire pusher provided in this embodiment is used to push the wire 25, which is divided into two stages: pushing the wire as a whole using the pusher body and pushing it using a slider clamp. The pusher body 1's push chamber 8 radially restricts the wire 25, leaving only the connecting contact point section for overall insertion into the top cover of the pulse generator 20. Then, the slider clamps and fixes the wire 25 within the push chamber 8. Sliding the slider pushes the wire 25 towards the pulse generator 20. Because the wire 25 is radially restricted within the push chamber 8, it will not bend during the pushing process, thus improving the convenience and reliability of pushing the wire 25 into the pulse generator 20. The exposed length of the wire 25 can be limited by the alignment tool 6, ensuring that the length of the wire 25 pushed into the pulse generator 20 is controllable during overall pushing.

[0065] like Figure 11 , Figure 14As shown, the upper shell 2 has an upper wire guide groove 14, and the lower shell 3 has a lower wire guide groove 15. The upper wire guide groove 14 and the lower wire guide groove 15, when combined, form a complete propulsion cavity 8. The propulsion cavity 8 is used to limit the radial movement of the wire 25, and the wire 25 is adapted to be axially translated and propelled within the propulsion cavity 8. When the lower shell 3 and the upper shell 2 are opened, the wire 25 can be easily removed. Preferably, both the lower shell 3 and the upper shell 2 have two wire guide grooves arranged side-by-side, thus forming two propulsion cavities 8, which can be used for the installation of dual-channel wires 25. Alternatively, as an alternative embodiment, the above-mentioned channel can also be a single channel or other multi-channel to meet practical needs. It should be noted that the preferred embodiment is described in a single-channel manner. The clamping bar 21 of the slider also slides within the propulsion cavity 8, and the relative position of the wire 25 and the clamping bar 21 remains unchanged during the sliding process of the wire 25. Figure 8 As shown, the length of the clamping bar 21 of the slider is less than the length of the propulsion cavity 8. When the clamping bar 21 is used to clamp and drive the wire 25 to move, the remaining part of the propulsion cavity 8 can radially limit the wire 25 to ensure that the wire 25 will not bend over a large range.

[0066] After the upper shell 2 and the lower shell 3 are closed, the upper slider 4 and the lower slider 5 are interlocked through a linkage block to achieve linkage. Specifically, as shown in the figure... Figure 15a , Figure 15b As shown, the upper slider 4 has an upper linkage block 18, and the lower slider 5 has a lower linkage block 19 for cooperating with the upper linkage block 18. After the upper shell 2 and the lower shell 3 are closed, the upper linkage block on the upper slider and the lower linkage block on the lower slider block block each other in their respective movement paths. Alternatively, as an alternative implementation, the upper slider 4 and the lower slider 5 can also be linked through other conventional interlocking methods, such as mutual plugging.

[0067] like Figure 9 , Figure 10 , Figure 25 As shown, the upper shell 2 and the lower shell 3 are opened by rotation. One side of the upper shell 2 and the lower shell 3 are rotatably connected by a pivot 29. The other side of the upper shell 2 and the lower shell 3 is provided with matching latches, and also with offset rotating side wings 9 on the other side. During operation, by turning the two rotating side wings 9 respectively, the matching latches can be separated, conveniently opening the lower shell 3 and the upper shell 2, thereby accommodating the wire 25 inside the propeller body 1. Specifically, as... Figure 6As shown, the upper shell 2 has an upper locking buckle 30, and the lower shell 3 has a lower locking buckle 31. When the upper shell 2 and the lower shell 3 are closed, the upper locking buckle 30 and the lower locking buckle 31 are locked together, thereby achieving locking between the upper shell 2 and the lower shell 3.

[0068] like Figure 12 , Figure 13 As shown, the propeller body 1 has grooves on both sides of the propulsion cavity 8 to restrict the sliding of the slider. The slider has a sliding buckle 17 that partially extends into the groove. The sliding buckle 17 and the groove cooperate to restrict the sliding path of the slider. Specifically, the lower sliding buckle of the lower slider 5 is engaged with the lower sliding groove 13 of the lower shell 3. After connection, the lower slider cannot disengage from the lower sliding groove 13, nor can it flip over, but the lower slider 5 can slide along the lower sliding groove 13; similarly, the upper sliding buckle of the upper slider 4 is engaged with the upper sliding groove 12 of the upper shell 2.

[0069] like Figure 17 As shown, when the slider is in the first position, a limiting structure for limiting the slider is provided between the slider and the pusher body 1. Specifically, the limiting structure includes: a first translational limiting buckle 16 disposed on the slide groove for cooperating with the slider, and a second translational limiting buckle 27 disposed on the slider for cooperating with the first translational limiting buckle 16; when the slider moves and advances within the slide groove to the first position, the slider is temporarily locked by the cooperation of the second translational limiting buckle 27 and the first translational limiting buckle 16. This facilitates the operator's next operation and prevents the slider from sliding arbitrarily. Alternatively, as an alternative embodiment, when the slider is in the second position, a limiting structure for limiting the translational movement of the slider can also be provided between the slider and the pusher body 1.

[0070] like Figure 16 , Figure 17 As shown, the slider has a snap-fit ​​protrusion extending to both sides on the sliding buckle 17. When the sliding buckle 17 is inserted into the upper sliding groove 12 of the upper shell 2 or into the lower sliding groove 13 of the lower shell 3, the snap-fit ​​protrusion can be snapped into the sliding groove through elastic deformation, thereby forming a slidable snap-fit ​​connection between the sliding buckle 17 and the propeller body 1.

[0071] like Figure 17 As shown, the upper slider 4 and the lower slider 5 are provided with anti-slip strips 28 to increase the convenience of operation. Markers 32 are also provided on the upper slider 4 and the lower slider 5 to indicate the operator's pressing position.

[0072] like Figure 19 As shown, in the wire pusher provided in this embodiment, the rear end of the lower shell 3 is provided with a lug 26 on one side of the lower wire groove 15. The lug 26 extends along one side of the lower wire groove 15 and protrudes in the vertical direction. With the lug 26, the operator can place the wire 25 against one side of the lug 26 when placing the wire 25, thereby quickly finding the reference position extending along the lower wire groove 15.

[0073] Example 2

[0074] This embodiment provides a wire guide pusher assembly, including: the wire guide pusher described in Embodiment 1; and further including: an alignment tool 6. For example... Figure 18 As shown, the alignment tool 6 has a limiting groove 7 that is opposite to the pushing cavity 8 of the pusher body 1 of the wire pusher. The front end of the limiting groove 7 is closed to limit the end of the wire 25. The limiting groove 7 has a limiting protrusion 33 protruding into the groove, which is used to hold the connecting contact section of the wire 25.

[0075] like Figure 19 As shown, the wire pusher assembly provided in this embodiment can limit the length of the wire 25 exposed on the pusher body 1 by cooperating with the alignment tool 6. That is, it controls the wire 25 to be exposed from the contact point section of the pusher body 1, thereby controlling the length of the overall pusher wire 25 and ensuring the accuracy of pushing the wire 25 into the pulse generator 20.

[0076] like Figure 18 , Figure 19 As shown, the alignment tool 6 has an arc-shaped handhold neck 34. By pressing against this handhold neck 34, the alignment tool 6 can be detachably connected to the wire pusher. After the wire 25 extending from the pusher body 1 is positioned using the alignment tool 6, the alignment tool 6 can be removed, facilitating the insertion of the exposed wire 25 into the top cover of the pulse generator 20. Specifically, in this embodiment, the alignment tool 6 and the wire pusher body are detachably connected by a snap-fit. Alternatively, they can be connected using other conventional connection methods in the art, such as fasteners including screws. Furthermore, as an alternative embodiment, the alignment tool 6 and the pusher body can also be rotatably connected.

[0077] like Figure 17 , Figure 18 As shown, the alignment tool 6 has a socket 22, and the pusher body 1 has a protruding plate 10 that mates with the socket 22. The pusher body 1 and the alignment tool 6 are connected by inserting the protruding plate 10 into the socket 22.

[0078] like Figure 17 , Figure 18 As shown, the protruding plate 10 has a U-shaped cross-section, thereby improving the accuracy of the connection between the alignment tool 6 and the propeller body 1. The protruding plate 10 has an inwardly recessed neck 11, and the insertion port 22 has a protruding rib 23 that engages with the neck 11. The protruding rib 23 engages and limits the movement of the neck 11 of the protruding plate 10 of the lower shell 3. Through the cooperation of the protruding rib 23 and the neck 11, the alignment tool 6 and the propeller body 1 can be securely connected.

[0079] like Figure 18 As shown, the insertion port 22 has an inwardly extending cover plate 24, and the side edges of the protruding plate 10 abut against the lower surface of the cover plate 24, thereby further improving the connection accuracy between the alignment tool 6 and the propeller body 1.

[0080] like Figure 18 As shown, the positioning groove 7 of the alignment tool 6 is a semi-open groove with an upper opening, which facilitates observation of the position of the wire 25 extending into the positioning groove 7, thereby ensuring the accuracy of the length of the wire 25 extending out of the pusher body 1. Alternatively, as an alternative implementation, the alignment tool 6 can be omitted, and only the pusher body can be used, with the exposed portion of the wire 25 limited by on-site measurement during use.

[0081] How to use

[0082] like Figure 19-25 The diagram shown illustrates the operation of advancing the wire 25 using the wire advancer assembly of this embodiment. Specifically, as... Figure 19 As shown, firstly, the thruster body 1 and the alignment tool 6 are docked and snapped together, so that the thrusting cavity 8 of the thruster body 1 and the limiting groove 7 of the alignment tool 6 are aligned; then, the upper shell 2 is rotated open, and the wire 25 is placed in the lower wire groove 15, with the front end of the wire 25 aligned with the front end of the limiting groove 7 in the alignment tool 6. During this process, the lug 26 on the lower shell 1 can be used to quickly find the reference position when placing the wire 25.

[0083] During the above process, before the upper shell 2 and the lower shell 3 are fastened together, the second translational limit buckle 27 of the upper slider and the lower slider engages with the first translational limit buckle 16 on the shell to ensure that the linkage blocks of the upper slider 4 and the lower slider 5 can be "interlocked" when the shell is closed, thereby realizing linkage.

[0084] like Figure 20 As shown, the upper shell 2 of the thruster body 1 is then rotated downwards to engage with the lower shell 3. Figure 21 , Figure 22As shown, the alignment tool 6 is removed from the pusher body 1, and part of the wire 25 is exposed from the front end of the pusher body 1, that is, the exposed connection contact section of the wire 25, with a length of d1. The exposed wire 25 is pushed into the top cover of the pulse generator 20 by the pusher body 1, and the relative position of the slider with the lower shell 3 and the upper shell 2 remains unchanged during this process.

[0085] like Figure 21 , Figure 22 , Figure 23 and Figure 24 As shown, inside the pulse generator 20, the total distance that the wire 25 can be inserted is d, that is, the total length of the channel of the pulse generator 20 is d. When the wire 25 exposed from the front end of the pusher body 1 is inserted into the top cover of the pulse generator 20, the distance that the wire 25 is inserted into the pulse generator 20 is d1. At this time, the remaining distance that the wire 25 can be inserted into the pulse generator 20 is d2 (d2 = d - d1). By setting the slider pushing distance to d2, the wire 25 can be accurately pushed into the top cover of the pulse generator 20, thereby achieving one-time pushing into place.

[0086] like Figure 22 , Figure 24 The figures show the states before and after the slider pusher wire 25.

[0087] like Figure 25 As shown, the upper shell 2 of the thruster body 1 is rotated open, and the thruster body 1 can be separated from the wire 25 radially.

[0088] The above explanation of the function and principle of this embodiment uses a single-channel IPG as an example. When the auxiliary dual-channel IPG wire 25 is inserted, the installation diagram of wire 25 is as follows. Figure 26 As shown, according to Figure 26 After installing wire 25, the subsequent steps are the same as... Figures 19-25 They are basically the same, so I won't go into details.

[0089] It should be noted that the purpose of this embodiment can be achieved by exposing all or part of the connecting contact section of the wire 25 to the pusher body 1. It is only necessary to control the exposed length d1 of the wire 25 by using the alignment tool 6, combined with the total length of the pulse generator 20 channel being d, and setting a matching slider pushing distance d2, where d = d1 + d2, so that the wire 25 can be accurately pushed into the top cover of the pulse generator 20.

[0090] In one embodiment, the total length of the connecting contact segment of the wire 25 is d1, and the alignment tool 6 controls the connecting contact segment of the wire 25 to be just fully exposed outside the pusher body 1. In this case, the pushing distance d2 of the slider can be set relatively smaller, making it easier for the doctor to operate.

[0091] In another embodiment, the connecting contact section of the wire 25 is partially exposed outside the thruster body 1. Furthermore, for one of the connecting contact points, a portion is exposed outside the thruster body 1, and a portion is inside the thruster body 1. This prevents the connecting contact point from bending during the insertion of the entire connecting contact section into the pulse generator top cover, thus improving the stability of the insertion process. To achieve this, the alignment tool 6 is provided with a matching exposed length d1. In this case, a higher requirement is placed on the hardness of the connecting contact point to prevent deformation due to force during insertion. Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A wire actuator, characterized in that, include: The propeller body (1) has an openable upper shell (2) and a lower shell (3), and a propulsion cavity (8) for radially limiting the wire (25) is formed between the upper shell (2) and the lower shell (3); a slider is slidably disposed on the propeller body (1) in a direction parallel to the axis of the propulsion cavity (8), the slider having a clamping bar (21) extending into the propulsion cavity (8) for clamping the wire (25) inside the propulsion cavity (8), the slider having a first position on the propeller body (1) sliding to one end of the propeller body (1), and a second position sliding to the other end of the propeller body (1), the slider being able to drive the wire (25) forward when sliding from the first position to the second position; the slider having an upper slider (4) and a lower slider (5) cooperating with each other. 5) The upper slider (4) is slidably mounted on the upper shell (2), and the lower slider (5) is slidably mounted on the lower shell (3). After the upper shell (2) and the lower shell (3) are closed, the upper slider (4) and the lower slider (5) clamp the wire (25) in the propulsion cavity (8) together through the clamping bar (21). After the upper shell (2) and the lower shell (3) are closed, the upper slider (4) and the lower slider (5) are interlocked through the linkage block to achieve linkage. The upper slider (4) has an upper linkage block (18), and the lower slider (5) has a lower linkage block (19) for cooperating with the upper linkage block (18). After the upper shell (2) and the lower shell (3) are closed, the upper linkage block (18) on the upper slider and the lower linkage block (19) on the lower slider block ...

2. The wire actuator according to claim 1, characterized in that, The upper shell (2) and the lower shell (3) are rotatably connected on one side by a pivot (29), and the other side of the upper shell (2) and the lower shell (3) is provided with mutually offset pivoting side wings (9).

3. The wire actuator according to any one of claims 1-2, characterized in that, The propeller body (1) has a groove for restricting the sliding of the slider, and the slider has a sliding buckle (17) that extends partially into the groove.

4. The wire actuator according to claim 3, characterized in that, When the slider is at least in the first position, there is a limiting structure between the slider and the propeller body (1) for limiting the slider.

5. The wire actuator according to claim 4, characterized in that, The limiting structure includes: a first translational limiting buckle (16) disposed on the propeller body (1) for cooperating with the slider, and a second translational limiting buckle disposed on the slider for cooperating with the first translational limiting buckle (16); when the slider moves and advances in the groove and reaches the first position, the slider is temporarily locked by the cooperation of the second translational limiting buckle and the first translational limiting buckle (16).

6. A wire actuator assembly, characterized in that, The device includes a wire pusher according to any one of claims 1-5; and further includes: an alignment tool (6) having a limiting groove (7) for opposing the push chamber (8) of the pusher body (1), the front end of the limiting groove (7) being closed for limiting the end of the wire (25).

7. The wire guide thruster assembly according to claim 6, characterized in that, The alignment tool (6) has a socket (22), and the pusher body (1) has a protruding plate (10) that mates with the socket (22). The pusher body (1) and the alignment tool (6) are connected by inserting the protruding plate (10) into the socket (22).

8. The wire guide thruster assembly according to claim 7, characterized in that, The protruding plate (10) has an inwardly recessed neck (11), and the socket (22) has a protruding rib (23) that engages with the neck (11).

Images