A wire propeller and wire propeller assembly

Abstract

The application provides a guide wire pusher assembly, belonging to the technical field of medical devices, which comprises a pusher body, an internal pusher cavity for limiting the radial direction of a guide wire, the guide wire being adapted to slide in the axial direction in the pusher cavity; a sliding block, which is connected with the pusher body, the sliding block being adapted to slide in the direction parallel to the axis of the pusher cavity on the pusher body, the sliding block having a connecting structure for clamping the guide wire; the guide wire pusher of the application limits the radial direction of the guide wire through the pusher cavity of the pusher body, only leaving the head part of the guide wire for being inserted into the pulse generator top cover, and then pushing the guide wire towards the pulse generator through the sliding block; since the guide wire is limited in the radial direction in the pusher cavity, the guide wire will not be bent during the pushing process, thereby improving the convenience and reliability of pushing the guide wire into the pulse generator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a lead pusher and a lead pusher assembly. BACKGROUND

[0002] With the development of neuromodulation technology, neurostimulator technology represented by deep brain stimulators, vagus nerve stimulators, spinal cord stimulators and sacral nerve stimulators is continuously applied and popularized. Correspondingly, the process requirements of electrode products involved in the stimulator system are also continuously improved. Since a smaller rigidity electrode is beneficial to the activity of the patient and can reduce the discomfort of the patient at the electrode implantation site and improve the service life of the electrode, making the electrode rigidity smaller and more fatigue-resistant is the current and future trend.

[0003] And as the electrode becomes softer and softer, the operation of inserting the electrode into the top cover of the implantable pulse generator (IPG) will become difficult. At present, in the process of inserting the electrode into the top cover of the IPG, the electrode is generally inserted into the top cover of the IPG by the doctor's own hand. Among them, the position of the electrode held by the doctor, the size of the electrode clamping force, the size of the electrode pushing force, the distance of each push, the depth of the push, etc. are uncertain factors, so the influence of the doctor's hand on the electrode cannot be determined, and different operation methods make the experience of the doctor different.

[0004] For example, if the position of the electrode held during the operation is too long from the end face of the IPG top cover, it may cause the electrode to be difficult to insert due to large bending deformation during the insertion into the top cover, or even cause permanent deformation of the electrode and affect the function of the pulse generator. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to overcome the defect that the lead is difficult to insert into the top cover of the IPG in the prior art, so as to provide a lead pusher assembly capable of improving the convenience and reliability of lead insertion.

[0006] In order to solve the above technical problems, the present application provides a lead pusher, comprising: a pusher body, having a push cavity inside for limiting the radial direction of the lead, the lead being adapted to slide in the axial direction in the push cavity;

[0007] A sliding block is connected with the pusher body, the sliding block being adapted to slide in a direction parallel to the axis of the push cavity on the pusher body, and the sliding block having a connecting structure for clamping the lead.

[0008] Optionally, the sliding block is at least partially slidably arranged in the pusher body, and the sliding block has a jaw for clamping the lead.

[0009] Optionally, the pusher body has a sliding groove for limiting the sliding path of the slider, and the sliding groove has limiting structures at two ends, which include clamping grooves arranged on both sides of the slider and buckles arranged on the sliding groove for cooperating with the clamping grooves.

[0010] Optionally, the slider is connected with a push rod, one end of the push rod extends out of the pusher body, and the end of the push rod is connected with a push handle, and the handle surface of the push handle is provided with anti-skid lines.

[0011] Optionally, the push handle is provided with a support groove, the center line of the support groove is parallel to the axis of the push cavity of the pusher body, and the support groove is adapted to support the wire extending out of the pusher body.

[0012] Optionally, the pusher body has two push cavities arranged side by side.

[0013] Optionally, the pusher body comprises a lower shell and an upper shell which can be separated, and the push cavity is formed between the upper shell and the lower shell.

[0014] Optionally, one side of the upper shell is rotatably connected with one side of the lower shell through a rotating shaft.

[0015] Optionally, the rotating shaft is provided with a torsional spring, and the torsional spring has an elastic force for driving the upper shell and the lower shell to open or close.

[0016] Optionally, an upper slider and a lower slider are arranged on the upper shell and the lower shell respectively, the upper slider has a pushing block, when the lower shell and the upper shell are buckled, the upper slider and the lower slider are connected with each other through insertion, and the combination of the upper slider and the lower slider is driven by the pushing block.

[0017] Optionally, an upper slider and a lower slider are arranged on the upper shell and the lower shell respectively, when the lower shell and the upper shell are buckled, the upper slider and the lower slider are close to each other to form extrusion on the wire, a first push handle and a second push handle are arranged on the outside of the pusher body, the first push handle and the second push handle are connected with the upper slider and the lower slider respectively, and the upper slider and the lower slider are driven to move synchronously by simultaneously pushing the first push handle and the second push handle.

[0018] Optionally, the lower shell and the upper shell have dislocated toggle flanks arranged on the side edges away from the rotating shaft.

[0019] Optionally, the side edges of the upper shell and the lower shell away from the rotating shaft are connected through buckles.

[0020] The application further provides a wire pusher assembly, comprising the pusher body in any of the above solutions and a positioning tool detachably connected with the pusher body, the positioning tool being provided with a clearance slot for accommodating the wire, and a rear end of the positioning tool being adapted to be connected with the pusher body, the clearance slot on the positioning tool being opposite to the push chamber in the pusher body after the connection.

[0021] Optionally, the positioning tool is provided with a socket, and the pusher body is provided with a protruding plate matched with the socket, and the pusher body and the positioning tool are connected through the clamping connection of inserting the protruding plate into the socket.

[0022] Optionally, the protruding plate has a U-shaped structure in cross section.

[0023] Optionally, the protruding plate is provided with a neck inwardly recessed, and the socket is provided with a convex rib clamped and matched with the neck.

[0024] Optionally, the socket is provided with a cover plate extending inwardly, and the side edges of the protruding plate are respectively abutted on the lower surfaces of the cover plate.

[0025] Optionally, the clearance slot on the positioning tool is an upper opening slot with a closed front end.

[0026] The technical solution of the application has the following advantages:

[0027] 1. The wire pusher provided by the application limits the wire in the radial direction through the push chamber of the pusher body, only leaving part of the head of the wire for insertion into the top cover of the pulse generator, and then pushing the wire towards the pulse generator through the slider. Since the wire is limited in the radial direction in the push chamber, the wire will not be bent during the pushing process, thereby improving the convenience and reliability of pushing the wire into the pulse generator.

[0028] The direct reason why the wire is difficult to be pushed into the pulse generator in the prior art is that the resistance of the wire during the insertion into the IPG top cover exceeds the support force of the wire of a certain length. On the one hand, the reaction force of the resistance of the wire is consumed by the deformation of the wire itself, and it is difficult to feedback the resistance; on the other hand, the pushing force applied to the wire is also consumed by the deformation of the wire itself, and it is difficult to transmit the pushing force. Therefore, the wire pusher assembly provided by the application limits the radial deformation of the wire through the push chamber, so that the pushing force acting on the wire can be completely used for the pushing of the wire, and the hand feeling of the insertion of the wire is improved.

[0029] 2. The wire propeller provided by the present application, the propeller body can be separated, the propeller body can divide the propelling cavity into two halves through the separation, and the wire can be separated in the radial direction when the propeller body and the wire are separated, so that the problem that the wire is taken out of the pulse generator top cover by the propeller body during the separation is avoided.

[0030] 3. The wire propeller assembly provided by the present application, the distance of the wire exposed from the propeller body can be limited through the cooperation of the alignment tool and the propeller body, so that the length of the whole propelling wire is controlled, and the position accuracy of the wire propelling into the pulse generator is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0032] Figure 1 is a perspective view of the wire propeller assembly of the embodiment of the present application;

[0033] Figure 2 is an exploded view of Figure 1 ;

[0034] Figure 3 is a top view of the wire propeller assembly of the embodiment of the present application;

[0035] Figure 4 is a bottom view of the wire propeller assembly of the embodiment of the present application;

[0036] Figure 5 is a left view of the wire propeller assembly of the embodiment of the present application;

[0037] Figure 6 is a right view of the wire propeller assembly of the embodiment of the present application;

[0038] Figure 7 is a sectional view of the line A-A in Figure 3 ;

[0039] Figure 8 is a sectional view of the line B-B in Figure 3 ;

[0040] Figure 9 is a sectional view of the line C-C in Figure 3 ;

[0041] Figure 10 is a top view of the lower shell of the embodiment of the present application;

[0042] Figure 11 is a bottom view of the lower shell of an embodiment of the present application;

[0043] Figure 12 is a left view of the lower shell of an embodiment of the present application;

[0044] Figure 13 is a top view of the upper shell of an embodiment of the present application;

[0045] Figure 14 is a bottom view of the upper shell of an embodiment of the present application;

[0046] Figure 15 is a left view of the upper shell of an embodiment of the present application;

[0047] Figure 16 is a perspective view of the push handle slider of an embodiment of the present application;

[0048] Figure 17 is a left view of the push handle slider of an embodiment of the present application;

[0049] Figure 18 is a perspective view of the wire pusher of an embodiment of the present application;

[0050] Figure 19 is a perspective view of the alignment tool of an embodiment of the present application;

[0051] Figures 20-26 is a schematic diagram of the use of an embodiment of the present application;

[0052] Figures 27-28 is a schematic diagram of two alternative configurations of an embodiment of the present application;

[0053] Figure 29 is a front view of the transfer shaft; Figure 2

[0054] is a right view of the transfer shaft. Figure 30 Figure 29

[0055] BRIEF DESCRIPTION OF THE DRAWINGS

[0056] ​​1, wire pusher; 2, alignment tool; 3, wire; 4, pusher body; 5, lower shell; 6, upper shell; 7, rotating shaft; 8, sliding block; 9, jaw; 10, pushing cavity; 11, avoiding slot; 12, turning side wing; 13, sliding groove; 14, upper sliding groove; 15, lower sliding groove; 16, positioning slot; 17, positioning piece; 18, clamping groove; 19, clamping buckle; 20, push rod; 21, push handle; 22, supporting slot; 23, socket; 24, extending plate; 25, neck; 26, convex rib; 27, cover plate; 28, pulse generator; 29, torsional spring; 30, clamping handle; 31, clamping lock; 32, chamfer; 33, knurled pattern; 34, lower sliding block; 35, pushing block; 36, first push handle; 37, second push handle. DETAILED DESCRIPTION

[0057] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0058] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0059] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

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

[0061] The present embodiment provides a wire pusher assembly, which comprises Figure 1As shown, the wire pusher 1 and the alignment tool 2 are detachably connected, and after the wire 3 extending out of the pusher body 4 is positioned by the alignment tool 2, the alignment tool 2 can be detached, so as to facilitate the insertion of the wire 3 extending out of the pusher body 4 into the top cover of the pulse generator 28. In this embodiment, the alignment tool 2 and the wire pusher 1 are detachably connected by clamping, and can also be connected by other conventional connection forms in the art, such as fasteners including screws. Alternatively, the alignment tool 2 and the wire pusher 1 can also be rotatably connected.

[0062] The wire pusher assembly of this embodiment is used to insert the wire 3 into the top cover of the pulse generator 28. The insertion part of the wire 3 is divided into an "easy-to-insert" section containing a connection contact and a "difficult-to-insert" section not containing a connection contact. The wire 3 is pushed by the wire pusher 1 provided in this embodiment, which is correspondingly divided into two stages of integral pushing by the wire pusher 1 and pushing by the slider 8 of the handle 21. When the wire 3 is integrally pushed by the wire pusher 1, the wire 3 is clamped by the wire pusher 1, and the head part of the wire 3 is exposed out of the wire pusher 1. Specifically, the length of the wire 3 exposed out of the wire pusher 1 can be limited by the alignment tool 2, so as to ensure that the length of the wire 3 pushed into the pulse generator 28 is controllable when the wire 3 is integrally pushed.

[0063] As shown in Figure 1 , the alignment tool 2 has an avoidance slot 11 with a closed front end for limiting the top end of the wire 3. The avoidance slot 11 on the alignment tool 2 is an upper opening slot, which can facilitate the observation of the position of the wire 3 extending into the avoidance slot 11, so as to ensure the accuracy of the length of the wire 3 extending out of the pusher body 4. Alternatively, the alignment tool 2 can be omitted, and only the wire pusher 1 can be used. In use, the exposed part of the wire 3 is limited by on-site measurement. In this embodiment, the wire can be an electrode wire or an extension wire. The extension wire is a component of a brain pacemaker system, which is used to transmit the electrical pulse signal generated by an implantable neurostimulator to the electrode wire.

[0064] As shown in Figure 2 , the wire pusher 1 includes a pusher body 4 and a slider 8 connected with the pusher body 4. The slider 8 is at least partially slidably arranged in the pusher body 4. A jaw 9 for clamping the wire 3 is arranged on the slider 8. The jaw 9 is slidably arranged in a pushing cavity 10 of the pusher body 4, and the wire 3 is clamped on the jaw 9. The jaw 9 on the slider 8 is described in detail with reference to Figure 16 , Figure 17The structure is shown.

[0065] As shown in Figure 2 , the inside of the pusher body 4 has a pushing cavity 10 for limiting the radial direction of the wire 3, which is adapted to slide in the pushing cavity 10 in the axial direction. In addition, the jaw 9 of the slider 8 also slides in the pushing cavity 10, and the length of the jaw 9 of the slider 8 is less than the length of the pushing cavity 10, so as to ensure that the wire 3 is moved by the jaw 9; the remaining part of the pushing cavity 10 can limit the radial direction of the wire 3, so as to ensure that the wire 3 does not bend in a large range. In addition, as an alternative embodiment, the slider 8 can also be slidably arranged outside the pusher body 4, and the jaw 9 on the slider 8 can also clamp the wire 3 outside the pusher body 4.

[0066] As shown in Figure 2 , the pusher body 4 comprises a lower shell 5 and an upper shell 6 which can be separated, and the pushing cavity 10 is formed between the upper shell 6 and the lower shell 5. Specifically, as shown in Figure 10 , Figure 14 , the inside of the lower shell 5 and the inside of the upper shell 6 each have a receiving groove, and the receiving groove in the lower shell 5 and the receiving groove on the upper shell 6 are relatively combined to form a complete pushing cavity 10, so that the wire 3 can be conveniently loaded or taken out when the lower shell 5 and the upper shell 6 are opened. Moreover, preferably, the lower shell 5 and the upper shell 6 each have two receiving grooves arranged side by side, so as to form two pushing cavities 10 after combination, which can be used for the installation of double-channel wires 3. In addition, as an alternative embodiment, the above-mentioned channel can also be a single channel or other multiple channels to meet the actual use needs.

[0067] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 6 , one side of the upper shell 6 is rotatably connected to one side of the lower shell 5 through a rotating shaft 7. Moreover, as shown in Figure 29 , Figure 30 , one end of the rotating shaft 7 has a chamfer 32 for facilitating the insertion connection of the rotating shaft 7; the outer wall surface of the other end of the rotating shaft 7 is provided with a knurled pattern 33 for increasing the friction between the rotating shaft 7 and the upper shell 6 and / or the lower shell 5, so as to avoid the rotating shaft 7 from being randomly rotated out. The lower shell 5 and the upper shell 6 respectively have dislocated turning flaps 12 arranged on the side edges away from the rotating shaft 7. When operating, the two turning flaps 12 are respectively pulled by the thumb and the index finger, so as to conveniently open the lower shell 5 and the upper shell 6, and thus the wire 3 is accommodated in the inside of the pusher body 4.

[0068] As shown in Figure 7 , Figure 8 , Figure 9As shown, the inside of the propeller body 4, the jaw 9 of the slider 8 is slidingly accommodated in the partial propelling cavity 10, and the slider 8 can slide along the propelling cavity 10 in the propeller body 4. And, when the alignment tool 2 is connected with the propeller body 4, the avoiding slot 11 on the alignment tool 2 is opposite to the propelling cavity 10 of the propeller body 4.

[0069] As shown in the figure, Figure 10 , Figure 11 , Figure 12 As shown, the two sides and the middle of the propelling cavity 10 in the propeller body 4 are respectively provided with the sliding slot 13 for limiting the sliding path of the slider 8. Among them, the sliding slot 13 between the two propelling cavities 10 includes the oppositely arranged upper sliding slot 14 and lower sliding slot 15, the upper sliding slot 14 is located on the upper shell 6, and the lower sliding slot 15 is located on the lower shell 5. The lower shell 5 has a positioning slot 16 towards the upper shell 6, and the positioning slot 16 is used for cooperating with the positioning piece 17 on the upper shell 6, and the positioning piece 17 can be a positioning boss. As shown in the figure, Figure 4 , Figure 9 , Figure 11 As shown, between the slider 8 and the sliding slot 13 of the propeller body 4, at least at the end away from the alignment tool 2, there is a limiting structure for limiting the slider 8, when the slider 8 is slid to the end away from the alignment tool 2, it can be temporarily limited on the limiting structure, so as to ensure that the position of the slider 8 will not be moved randomly when the operator operates. In this embodiment, both ends of the slider 8 and the sliding slot 13 on both sides of the propelling cavity 10 are provided with a limiting structure for limiting the slider 8. Specifically, the limiting structure includes the clamping groove 18 arranged on both sides of the slider 8 and the buckle 19 arranged on the sliding slot 13 and used for cooperating with the clamping groove 18, when the slider 8 is slidingly moved in the sliding slot 13 to the front end or the rear end, the slider 8 is temporarily clamped through the cooperation of the buckle 19 and the clamping groove 18, so as to facilitate the operator to carry out the next operation, and avoid the slider 8 from being randomly slid.

[0070] As shown in the figure, Figure 13 , Figure 14 , Figure 15 As shown, the upper shell 6 has a positioning piece 17 for inserting into the positioning slot 16. When the cover is closed, the positioning piece 17 is inserted into the positioning slot 16, thereby ensuring the fit of the closed lower shell 5 and upper shell 6.

[0071] As shown in the figure, Figure 16 , Figure 17As shown, the slider 8 is connected with a push rod 20, one end of the push rod 20 extends out of the pusher body 4, and the end of the push rod 20 is connected with a push handle 21, the handle surface of the push handle 21 is provided with anti-skid lines, when the slider 8 is operated, the handle surface of the push handle 21 can be pushed to drive the slider 8 to slide in the pusher body 4. In addition, as a preferred embodiment, the slider 8, the push rod 20 and the push handle 21 can be integrally formed. The push handle 21 is provided with a support groove 22, the center line of the support groove 22 is parallel to the axis of the push cavity 10 of the pusher body 4, and the support groove 22 is adapted to support the wire 3 extending out of the pusher body 4.

[0072] As shown in Figure 18 , Figure 19 , the alignment tool 2 is provided with a socket 23, the pusher body 4 is provided with an extension plate 24 matched with the socket 23, and the pusher body 4 and the alignment tool 2 are connected by inserting the extension plate 24 into the socket 23. In addition, as a preferred embodiment, the cross section of the extension plate 24 is a U-shaped structure, so as to improve the accuracy of the connection between the alignment tool 2 and the pusher body 4. In addition, the extension plate 24 is provided with a neck 25 inwardly recessed, and the socket 23 is provided with a convex rib 26 matched with the neck 25. Through the matching of the convex rib 26 and the neck 25, the alignment tool 2 and the pusher body 4 can be connected in a clamping manner. In addition, as a preferred embodiment, as shown in Figure 20 , the socket 23 is provided with a cover plate 27 extending inwardly, and the side edges of the extension plate 24 abut on the lower surfaces of the cover plate 27 respectively, so as to further improve the connection accuracy of the alignment tool 2 and the pusher body 4.

[0073] As shown in Figures 20-26 , it is an operation schematic diagram of the wire 3 pushing operation of the wire pusher assembly according to the embodiment. Specifically, as shown in Figure 20 , first, the pusher body 4 and the alignment tool 2 are connected in a clamping manner, so that the push cavity 10 of the pusher body 4 and the avoidance groove 11 of the alignment tool 2 are opposite; then, the slider 8 of the pusher body 4 is pulled outwardly to the last end, the upper shell 6 is rotated to be opened, the wire 3 is placed in the push cavity 10 of the pusher body 4, the jaw 9 of the slider 8 and the avoidance groove 11 of the alignment tool 2, and it is ensured that the end of the wire 3 having the connection contact section is aligned with the front end surface of the avoidance groove 11 of the alignment tool 2. As shown in Figure 21 , then the upper shell 6 of the pusher body 4 is rotated downwardly and buckled with the lower shell 5. As shown in Figure 22 , Figure 23As shown, the alignment tool 2 is removed from the pusher body 4, and part of the wire 3 is exposed from the front end of the pusher body 4. The exposed part of the wire 3 is then pushed into the top cover of the pulse generator 28 through the pusher body 4. Figure 24 As shown, inside the pulse generator 28, the total distance that the wire 3 can be inserted is d. When the portion of the wire 3 protruding from the front end of the pusher body 4 is inserted entirely into the top cover of the pulse generator 28, the distance the wire 3 is inserted into the pulse generator 28 is d1. At this point, the remaining distance that the wire 3 can be inserted into the pulse generator 28 is d2. At this time, the distance that the slider 8 can be pushed forward within the pusher body 4 is also d2. Thus, after the slider 8 continues to push the wire 3 forward, the wire 3 can accurately enter the pulse generator 28, ensuring that the wire 3 is pushed into place within the pulse generator 28. Figure 25 As shown, by pushing the push handle 21 forward, the slider 8 drives the wire 3 forward to continue being inserted into the pulse generator 28. Figure 26 As shown, the upper shell 6 of the thruster body 4 is rotated open to separate the wire 3 from the thruster body 4 radially, so as to avoid axial movement of the wire 3 and ensure the accuracy of the position of the wire 3 in the pulse generator 28.

[0074] In addition, as an alternative implementation method, such as Figure 27 As shown, a torsion spring 29 is provided on the rotating shaft 7. The torsion spring 29 has an elastic force that drives the upper shell 6 and the lower shell 5 to open or close. Specifically, in this embodiment, the torsion spring 29 has an elastic force that drives the upper shell 6 and the lower shell 5 to close. An opening structure is also provided on the upper shell 6 and the lower shell 5, which can be as follows: Figure 27 The clamp 30 shown can also be of other conventional structures. Additionally, as... Figure 27 As shown, the wire pusher provided in this embodiment has partial sliders in the upper shell 6 and the lower shell 5. An upper slider is provided in the upper shell 6, and a protrusion or groove is provided on the upper slider. A lower slider 34 is provided in the lower shell 5, and a groove or protrusion corresponding to the protrusion or groove of the upper slider is provided on the lower slider 34. When the upper shell 6 and the lower shell 5 are fastened together, the upper slider in the upper shell 6 and the lower slider 34 in the lower shell 5 are interlocked, thereby synchronously driving the combination of the upper slider and the lower slider through the push block 35 on the upper shell 6 connected to the upper slider. The connection between the push block 35 and the upper slider can be a direct connection, or, to improve the accuracy of the push, a gear and rack structure can be used for connection. In this embodiment, the torsion spring 29 makes it easier to maintain the clamping state of the pusher on the wire 3; the setting of the master and slave sliders, with the push operation located on the upper shell 6, makes it easier for the operator to operate with one hand.

[0075] As another alternative implementation, such asFigure 28 As shown, the wire pusher provided by the embodiment is provided with a clasp 31 on the other side of the upper shell 6 and the lower shell 5 away from the rotating shaft 7, and the upper shell 6 and the lower shell 5 are locked and connected by the clasp 31 after being buckled. In addition, the wire pusher of the embodiment is also provided with a partial slider in the upper shell 6 and the lower shell 5 respectively. When the upper shell 6 and the lower shell 5 are buckled, the upper slider in the upper shell 6 and the lower slider 34 in the lower shell 5 are close to each other to extrude the wire. Two push handles are arranged side by side on the outside of the pusher body. The first push handle 36 is connected to the upper slider, and the second push handle 37 is connected to the lower slider. The first push handle 36 and the second push handle 37 have flush handle surfaces, and the upper slider and the lower slider can be driven to move synchronously by pushing the two handle surfaces at the same time. In the embodiment, the clasp 31 and the upper and lower push handles can effectively form the clamping of the wire, and the pusher is not easy to open and fall off the wire.

[0076] Obviously, the above embodiment is only an example for clearly illustrating, but not a limitation of the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments do not need to be exhausted, and the obvious changes or variations still fall within the protection scope of the present application.

Claims

1. A wire propeller, characterized in that, The application relates to a wire pusher for pushing a wire (3) into a pulse generator top cover, which comprises a pusher body (4) internally provided with a push cavity (10) for limiting the radial direction of the wire (3), wherein the wire (3) is adapted to slide in the axial direction in the push cavity (10); a sliding block (8) is connected with the pusher body (4) and is adapted to slide in the direction parallel to the axis of the push cavity (10) on the pusher body (4), and the sliding block (8) is provided with a connecting structure for clamping the wire (3); the wire (3) is pushed towards the pulse generator through the sliding block (8), the push cavity (10) is used for limiting the radial deformation of the wire (3), and the pushing force acting on the wire (3) can be used for pushing the wire (3); the sliding block (8) is connected with a push rod (20), one end of the push rod (20) extends out of the pusher body (4), the end of the push rod (20) is connected with a push handle (21), the push handle (21) is provided with a supporting groove (22), the center line of the supporting groove (22) is parallel to the axis of the push cavity (10) of the pusher body (4), and the supporting groove (22) is adapted to support the wire (3) extending out of the pusher body (4). The sliding block (8) is at least partially slidably arranged in the pusher body (4), and the sliding block (8) is provided with a jaw (9) for clamping the wire (3). The pusher body (4) is provided with a sliding groove (13) for limiting the sliding path of the sliding block (8), and the two ends of the sliding groove (13) are respectively provided with limiting structures, which comprise clamping grooves (18) arranged on the two sides of the sliding block (8) and clamping buckles (19) arranged on the sliding groove (13) and used for cooperating with the clamping grooves (18). The pusher body (4) comprises a lower shell (5) and an upper shell (6) which can be separated, and the push cavity (10) is formed between the upper shell (6) and the lower shell (5).

2. The wire propeller of claim 1, wherein, One side of the lower shell (5) and one side of the upper shell (6) are rotatably connected through a rotating shaft (7), and the lower shell (5) and the upper shell (6) are respectively provided with misaligned turning side wings (12) on the sides away from the rotating shaft (7).

3. The wire propeller of claim 1, wherein, The wire pusher comprises the wire pusher and an alignment tool (2) detachably connected with the pusher body in the wire pusher, the alignment tool (2) is provided with an alignment groove (11) for accommodating the wire (3), the rear end of the alignment tool (2) is adapted to be connected with the pusher body (4), and the alignment groove (11) on the alignment tool (2) is opposite to the push cavity (10) in the pusher body (4) after the connection.

4. The wire propeller of claim 1, wherein, The alignment tool (2) is provided with a socket (23), the pusher body (4) is provided with an extending plate (24) matched with the socket (23), and the pusher body (4) and the alignment tool (2) are connected through the clamping connection of the extending plate (24) inserted into the socket (23).

5. The wire propeller of claim 4, wherein, ​ 6. A wire propeller assembly characterized by, ​ 7. The wire propeller assembly of claim 6, wherein, ​ 8. The wire propeller assembly of claim 7, wherein, The extension plate (24) has a neck (25) inwardly recessed thereon, and the socket (23) has a convex rib (26) engaged with the neck (25).

9. The wire propeller assembly of claim 8, wherein, The socket (23) has a cover plate (27) extending inwardly thereon, and the side edges of the extension plate (24) abut on the lower surface of the cover plate (27) respectively.

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