Conveyor handle, conveyor and stent release method

Abstract

The invention relates to a conveyor handle, a conveyor and a stent releasing method, a main body base is provided with a movement track, a movement part is movably assembled relative to the main body base along the movement track, the movement part is used for being connected with a releasing part, a binding wire controller is used for being connected with a binding guide wire, and the binding wire controller is movably assembled relative to the main body base, the binding wire controller can be in limiting contact with the moving part and is used for limiting the moving part and the releasing part to retreat towards the near end direction of the main body base. As long as the binding wire controller does not retreat, the binding wire controller can keep limiting the moving part, so that the successive movement logic relation between the binding guide wire and the releasing part is limited, namely, only the binding wire controller can be retreated in sequence, the binding guide wire is driven to retreat, the binding to the covered stent is released firstly, and then the releasing part can be retreated; and then the covered stent is released, and finally the covered stent is unfolded at the target position, so that misoperation can be effectively prevented.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a conveyor handle, a conveyor, and a stent release method. Background Art

[0002] Endovascular repair of hemangiomas is a method of treating aneurysms under dynamic detection of digital silhouette angiography. Compared with open surgery, endovascular repair of hemangiomas has significant advantages such as less trauma and fewer complications. Endovascular repair of hemangiomas mainly introduces the stent graft system through a small incision in the bilateral iliac arteries, delivers the stent graft with an artificial coating into the hemangioma cavity, and uses the superelastic properties of the stent graft and the barbed structure at the proximal end of the stent graft to fix the stent graft to the non-diseased vascular wall at the proximal and distal ends of the aneurysm, thereby completing the reconstruction of the abdominal artery and preventing the enlargement and rupture of the aneurysm.

[0003] For lesions involving the periphery and top of the renal branch arteries, in order to prevent the covered stent from covering the renal artery branches, it is necessary to re-establish the renal artery vascular access to avoid organ dysfunction caused by ischemia of the branch artery vessels. For this purpose, the covered stent can be windowed, and a small covered stent can be implanted into the branch artery through the window to establish the branch vascular access. In order to shorten the operation time, accurately locate the position of the covered stent, and facilitate the operator's operation, it is necessary to accurately control the pre-buried guide wire to prevent the occurrence of misoperation that affects the operation. Summary of the invention

[0004] Based on this, it is necessary to provide a conveyor handle, a conveyor and a bracket release method to address the above-mentioned technical problems.

[0005] The present application provides a conveyor handle, the conveyor handle comprising:

[0006] A main body base, wherein the main body base has a motion track;

[0007] A moving component, the moving component is movably assembled relative to the main body base along the moving track, and the moving component is used to connect the release component;

[0008] A binding wire controller is used to connect the binding guide wire, and the binding wire controller is movably assembled relative to the main base, wherein the binding wire controller can be in limited contact with the moving part to limit the moving part and the releasing part from retreating toward the proximal direction of the main base.

[0009] In one embodiment, the conveyor handle comprises:

[0010] A transfer component, the transfer component is rotatably assembled on the main body base;

[0011] A limiting component is connected to the moving component, wherein the limiting component is used to cooperate with the adapter component in a limiting manner, so that the limiting component controls the adapter component to rotate or lock relative to the main base.

[0012] In one embodiment, the main body base is a cylindrical base, the motion track is arranged in the inner cavity of the cylindrical base, the moving component is assembled in the inner cavity of the cylindrical base along the motion track, the binding wire controller and the binding guide wire are movably arranged in the inner cavity of the cylindrical base, the adapter component is an adapter cylinder, and the adapter cylinder is assembled on the cylindrical base in a fixed-axis rotation manner; and / or,

[0013] The adapter component has a matching locking structure, and the limiting shaft is locked with the locking structure to limit the rotation of the adapter component relative to the main base; and / or,

[0014] The main body base is provided with a control component, and the control component is control-connected with the moving component to control the moving component to move along the moving track.

[0015] In one embodiment, the binding wire controller comprises:

[0016] A controller end cover, the controller end cover is used to lock the restraining guide wire;

[0017] A controller base is connected to the main body base, and the controller end cover is detachably connected to the main body base through the controller base.

[0018] In one embodiment, the conveyor handle comprises:

[0019] A guidewire controller is used to connect the pre-buried guidewire, and the guidewire controller is movably assembled relative to the main body base.

[0020] In one embodiment, the guidewire controller comprises:

[0021] A first device base, wherein the first device base has a first guide wire channel for inserting a pre-buried guide wire;

[0022] A guidewire locking structure, the guidewire locking structure is arranged on the first device base, the guidewire locking structure has a locking state and a release state, the locking state is used to lock the pre-embedded guidewire, and the release state is used to release the pre-embedded guidewire;

[0023] A first device end cap is detachably mounted on the first device base and is used to control cooperation with the guidewire locking structure, thereby controlling the guidewire locking structure to switch between a locked state and a released state.

[0024] In one embodiment, the guidewire locking structure includes at least two locking unit parts, and a locking gap is provided between at least two of the locking unit parts, and the locking gap is used to insert a pre-buried guidewire. The first device end cover is used to apply a force to the at least two locking unit parts so that the at least two locking unit parts are close to each other, and the pre-buried guidewire is locked by reducing the gap size of the locking gap, or the at least two locking unit parts are separated from each other by canceling the force applied to the at least two locking unit parts, and the pre-buried guidewire is released by increasing the gap size of the locking gap; and / or,

[0025] The first device end cover is threadedly connected to the first device base.

[0026] In one embodiment, the guidewire controller comprises:

[0027] A second device base, wherein the second device base has a second guide wire channel for inserting a pre-buried guide wire;

[0028] The second device end cover is detachably mounted on the second device base, and the second device end cover is connected to the embedded guide wire to drive the embedded guide wire to move in the second guide wire channel.

[0029] The present application provides a conveyor, which comprises the conveyor handle.

[0030] The present application provides a stent release method based on the conveyor handle or the conveyor, and the stent release method comprises:

[0031] The binding wire controller is withdrawn relative to the main body base in a proximal direction, and the binding wire controller is used to drive the binding guide wire to withdraw in a proximal direction, so that the binding guide wire releases the binding of the stent graft and releases the limiting contact of the binding wire controller with the moving component;

[0032] The moving component is withdrawn toward the proximal direction, and the releasing component is driven to be synchronously withdrawn toward the proximal direction by the moving component, so that the releasing component releases the stent graft.

[0033] In the above-mentioned conveyor handle, conveyor and stent release method, the restraining wire controller can limit the retreat of the moving part by abutting against the moving part to form a limiting contact. Therefore, as long as the restraining wire controller does not retreat, the restraining wire controller will maintain the restriction on the moving part, making it impossible for the moving part to retreat, and further making it impossible for the release part connected to the moving part to retreat. This limits the logical relationship of the movement of the restraining guide wire and the release part, that is, the restraining wire controller can only be withdrawn first to drive the restraining guide wire to retreat, first release the restraint on the coated stent, and then withdraw the release part, and then realize the release of the coated stent, and finally make the coated stent deployed at the target position, which can effectively prevent misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of a coated stent provided in one embodiment of the present application.

[0035] Figure 2 A schematic diagram of the structure of a conveyor provided in one embodiment of the present application.

[0036] Figure 3 A schematic structural diagram of a conveyor handle provided in one embodiment of the present application.

[0037] Figure 4 A schematic diagram of the internal structure of a conveyor handle provided in one embodiment of the present application.

[0038] Figure 5 For Figure 4 A schematic diagram of the distal partial structure of the conveyor handle is shown.

[0039] Figure 6 For Figure 4 A schematic diagram of the proximal partial structure of the delivery handle is shown.

[0040] Figure 7 For Figure 4 A cross-sectional view of the tie wire controller in the conveyor handle is shown.

[0041] Figure 8 A schematic diagram of the structure of a guidewire controller provided for one embodiment of the present application.

[0042] Fig. 9 A schematic structural diagram of a guidewire locking structure provided in one embodiment of the present application.

[0043] Fig.10 A schematic structural diagram of a guidewire controller provided in another embodiment of the present application.

[0044] Fig.11 For Fig.10 A partial cross-sectional view of a guidewire controller is shown.

[0045] Figure Number:

[0046] 100, stent graft; 200, release component; 300, restraining guide wire; 400, pre-buried guide wire; 500, stress diffusion tube; 600a, distal holding piece; 600b, proximal holding piece;

[0047] 110. Open the window;

[0048] 200a, catheter connector; 200b, sealing ring; 200c, sealing cover;

[0049] 1000, main body base; 2000, moving parts; 3000, binding wire controller; 4000, adapter parts; 5000, limiting parts; 6000, guide wire controller;

[0050] 1000a, proximal end cover of base; 1100, control component;

[0051] 3100, controller spindle; 3200, controller end cover; 3300, controller base;

[0052] 4100, card position structure;

[0053] 6100a, first device base; 6100b, guidewire locking structure; 6100c, first device end cap;

[0054] 6100b1, locking unit portion; 6100b2, locking gap;

[0055] 6200a, second device base; 6200b, second device end cover; 6200c, connecting member. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0057] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0060] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0062] In order to more clearly describe the structure of the conveyor handle, conveyor, and stent release method, the term "distal end" is defined herein to mean the end away from the operator during the surgical operation, and the term "proximal end" is defined herein to mean the end close to the operator during the surgical operation. Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0063] Figure 1 Shown is a stent graft 100, Figure 1 The left end of the stent graft 100 shown in the figure is the distal end, and the right end is the proximal end. The stent graft 100 may be provided with one or more openings 110, and the openings 110 are located on the side wall of the stent graft 100. The pre-embedded guide wire 400 may be inserted into the openings 110 of the stent graft 100 from the outside of the stent graft 100 in advance, and then pass through the inside of the stent graft 100 from the bare end on the left side thereof.

[0064] The purpose of pre-embedded guidewire 400 is to establish a guidewire pathway in advance, facilitate superselection of branch arteries during surgery, improve the operability and convenience of the device, shorten the operation time, and improve the controllability of the operation. It is convenient for the outer sheath to pass through the embedded branch at the opening of the stent renal artery during surgery. The function of the outer sheath is to prevent the ball-expanded stent from falling off into the human body during the introduction process through the ball-expanded stent system.

[0065] See also Figure 2 and Figure 3 As shown, in the embodiments of the two conveyor handles provided by the present application, a distal gripping member 600a and a proximal gripping member 600b can be seen in the two conveyor handles, and the distal gripping member 600a and the proximal gripping member 600b are provided for the operator to hold and operate during the operation, such as Figure 3As shown, the distal holding member 600a and the proximal holding member 600b can be constructed as an integrated structure to form a complete holding handle. The integrated structure can improve operability, reduce the risk of cracking of the holding handle, improve the stability and safety of release during surgery, and solve the risk of the traditional two-flap handle affecting the surgical process due to cracking. The release component 200 can be a component that can be used to release the coated stent 100, such as a rear release catheter, wherein the holding handle can be mutually sleeved and assembled with the release component 200, and the release component 200 can be sleeved with the outer sheath tube, and the coated stent 100 is assembled using the tube body gap between the outer sheath tube and the release component 200, and the coated stent 100 is released by withdrawing the release component 200 relative to the outer sheath tube. The stress diffusion tube 500 can be set at the corresponding position on the release component 200 according to the needs to reduce the stress at the corresponding position in the release component 200. Those skilled in the art can design the specific structure of the conveyor handle according to the needs, which is not limited here.

[0066] See also Figures 2 to 7 As shown, the conveyor handle includes a main base 1000, a moving part 2000 and a binding wire controller 3000. The main base 1000 has a moving track. The moving part 2000 is movably assembled relative to the main base 1000 along the moving track. The moving part 2000 is used to connect with the release part 200 and drive the release part 200 to move synchronously. For example, the moving part 2000 drives the release part 200 to make an advancement movement toward the distal direction, and the moving part 2000 drives the release part 200 to make a retreat movement toward the proximal direction. The binding wire controller 3000 is used to connect with the binding guide wire 300. The binding wire controller 3000 is movably assembled relative to the main base 1000, and can drive the binding guide wire 300 to retreat toward the proximal direction, wherein the binding wire controller 3000 can form a limiting contact with the moving part 2000. This limiting contact can restrict the moving part 2000 and the releasing part 200 from retreating toward the proximal direction of the main base 1000, mainly by utilizing the distal end of the restraining wire controller 3000 to abut against the moving part 2000 to achieve this limiting contact. Therefore, only when the restraining wire controller 3000 drives the restraining guide wire 300 to retreat first and release the limiting contact on the moving part 2000, can the moving part 2000 drive the releasing part 200 to retreat.

[0067] In some embodiments of the present application, the restraining wire controller 3000 is located at the proximal end of the moving part 2000. In the limited state, the restraining wire controller 3000 abuts against the proximal end of the moving part 2000 to apply a force toward the distal end to the moving part 2000.

[0068] In some other embodiments of the present application, the restraining wire controller 3000 is distributed in parallel with the moving part 2000 along the radial direction. In the limited state, the restraining wire controller 3000 is in contact with the moving part 2000 along the axial direction, and the restraining wire controller 3000 applies a force toward the distal end to the moving part 2000 through the friction force with the moving part 2000.

[0069] It can be understood that the above embodiments are only partial examples of the relative positions of the binding wire controller 3000 and the moving part 2000. Other methods that can achieve limited contact between the binding wire controller 3000 and the moving part 2000 are also within the protection scope of this application, and this application does not make specific limitations on this.

[0070] See also Figure 4 As shown, the binding wire controller 3000 forms a limiting contact by abutting against the moving part 2000, which can limit the axial displacement of the moving part 2000, specifically, limit the retreat action of the moving part 2000, which is to move toward Figure 4 In this state, as long as the binding wire controller 3000 does not withdraw, the binding wire controller 3000 will keep restricting the moving part 2000, so that the moving part 2000 cannot withdraw, and further the release part 200 cannot withdraw. Therefore, this limits the logical relationship of the movement of the binding wire 300 and the release part 200, that is, the binding wire controller 3000 can only be withdrawn first, driving the binding wire 300 to withdraw, first releasing the binding of the coated stent 100, and then withdrawing the release part 200, and finally releasing the coated stent 100, so that the coated stent 100 is finally deployed at the target position.

[0071] Therefore, after the stent graft 100 is implanted at the target position, when the stent graft 100 needs to be released, the operator can withdraw the binding wire controller 3000 in the proximal direction relative to the main body base 1000. The function of the binding wire controller 3000 is to realize the control of the binding guide wire 300, including but not limited to clamping the binding guide wire 300 or releasing the binding guide wire 300, and when clamping the binding guide wire 300, it can drive the binding guide wire 300 to move together. Those skilled in the art can construct the specific structure and form of the binding wire controller 3000 according to actual needs, as long as it meets the expected control of the binding guide wire 300 by the binding wire controller 3000, and it is not limited here.

[0072] Therefore, the restraining wire controller 3000 is utilized to drive the restraining guide wire 300 to retreat toward the proximal direction, so that the restraining guide wire 300 releases the restraint on the coated stent 100, and releases the limiting contact of the restraining wire controller 3000 on the moving component 2000, allowing the moving component 2000 to retreat toward the proximal direction. At this time, the moving component 2000 is retreated toward the proximal direction, and the moving component 2000 is utilized to drive the releasing component 200 to retreat synchronously toward the proximal direction, so that the releasing component 200 releases the coated stent 100.

[0073] See also Figure 4 As shown, in one embodiment, the conveyor handle includes an adapter component 4000 and a limiting component 5000. The adapter component 4000 can be used to transfer the holding handle. The locking and release of the holding handle relative to the main body base 1000 are achieved by locking and releasing the adapter component 4000 and the main body base 1000. When the holding handle is released relative to the main body base 1000, the operator can operate the holding handle, for example, the adapter component 4000 is rotatably connected to the main body base 1000, so that the holding handle can be synchronously rotatably assembled relative to the main body base 1000 through the adapter component 4000.

[0074] Among them, according to the different structural designs of the main base 1000 and the adapter component 4000, the adapter component 4000 can be rotatably connected to the main base 1000 through a variety of rotation methods, such as a fixed-axis rotation connection and a multi-directional rotation connection. As long as the holding handle can form a rotatable assembly relative to the main base 1000 through the adapter component 4000 for the user to rotate and operate, no limitation is made here.

[0075] The limiting component 5000 is connected to the moving component 2000, and the limiting component 5000 can cooperate with the adapter component 4000 to control the rotation or locking of the adapter component 4000 relative to the main body base 1000. In some implementations, the limiting component 5000 is connected to the moving component 2000, and the movement of the moving component 2000 will drive the limiting component 5000 to move, so that the limiting component 5000 can limit or release the adapter component 4000, thereby controlling the rotation and locking of the adapter component 4000 relative to the main body base 1000.

[0076] Therefore, when the moving part 2000 does not withdraw, the moving part 2000 will maintain the position-limiting cooperation with the adapter part 4000, so that the adapter part 4000 cannot rotate relative to the main body base 1000, thereby ensuring that the holding handle cannot be released and the operator cannot operate the holding handle. When the moving part 2000 withdraws in the proximal direction, the position-limiting part 5000 will release the rotation restriction of the adapter part 4000 relative to the main body base 1000, so that the holding handle can be released. Therefore, this also defines the movement logic relationship between the withdrawal of the moving part 2000 and the release of the holding handle, that is, the moving part 2000 must be withdrawn first before the holding handle can be released.

[0077] See also Figure 4 As shown, the limiting component 5000 forms a limiting fit with the adapter component 4000, which can be used to limit the circumferential rotation of the adapter component 4000, wherein the adapter component 4000 can be used to assemble a grip handle for the operator to manipulate. The binding wire controller 3000 is connected to the binding guide wire 300. When the binding wire controller 3000 is used to withdraw the binding guide wire 300, the binding wire controller 3000 will withdraw and release the limiting contact with the moving component 2000. After the moving component 2000 is no longer constrained by the binding wire controller 3000, the moving component 2000 can be withdrawn along the axial direction. At this time, the retreat of the moving part 2000 will drive the limiting part 5000 to retreat synchronously. At this time, the limiting part 5000 will gradually move away from the adapter part 4000 as it retreats. When the limiting part 5000 is separated from the adapter part 4000 and there is no contact between the two, the limiting part 5000 will release the restriction on the adapter part 4000 and complete the release of the grip handle. The coordination design between the binding wire controller 3000, the moving part 2000 and the limiting part 5000 can effectively prevent the occurrence of misoperation during surgery.

[0078] The main body base 1000 can be in various structures according to design requirements. For example, the main body base 1000 can be in any regular or irregular structure such as a cylinder, a column, a table, etc., as long as it is suitable for assembly and use. Figure 4 and Figure 7 As shown, in one embodiment, the main body base 1000 can be adopted as a cylindrical base, and the cylindrical base has an inner cavity. The motion track can be set in the inner cavity of the cylindrical base. The motion track can be a sliding groove or a sliding track in the inner cavity of the cylindrical base, which is not limited here. The moving component 2000 is assembled in the inner cavity of the cylindrical base along the motion track, and the binding wire controller 3000 and the binding guide wire 300 are movably arranged in the inner cavity of the cylindrical base. The adapter component 4000 can also be adaptively adopted as an adapter cylinder, so that the adapter cylinder can be rotatably assembled on the cylindrical base along the central axis of the cylindrical base in a fixed-axis rotation manner. As shown Figure 4As shown, the adapter component 4000 has a matching locking structure 4100, and the locking structure 4100 adopts a structure such as a locking slot, a locking hole, etc. The limiting component 5000 can be adaptively selected to be a limiting shaft, etc. The limiting shaft is locked with the locking slot to limit the rotation of the adapter component 4000 relative to the main base 1000.

[0079] The main body base 1000 may be provided with a control component 1100, which is connected to the moving component 2000 for controlling the moving component 2000 to move along the moving track in the main body base 1000. The operator may form a control connection with the moving component 2000 through the control component 1100, so that the moving component 2000 can move relative to the main body base 1000 along the moving track. The control component 1100 may be used in a variety of forms to achieve axial motion control of the moving component 2000. For example, the control component 1100 may form a rotating sleeve connection with the main body base 1000 by rotating the control sleeve, or the control component 1100 may form a driving match with the moving component 2000 by a threaded drive. When the control component 1100 rotates relative to the main body base 1000, the moving component 2000 may be driven to move relative to the main body base 1000. In addition, the control component 1100 is not limited to being controlled and connected with the moving component 2000 by a variety of methods such as pushing, magnetic control, and threaded drive, which are not limited here.

[0080] See also Figure 5 As shown, the moving part 2000 and the release part 200 can be connected and assembled by using a catheter connector 200a and other parts. For example, the moving part 2000 can be a disc-shaped, table-shaped or other structure suitable for being assembled in the inner cavity of the main body base 1000. A through hole for the release part 200 to pass through is provided in the middle of the moving part 2000, and then the catheter connector 200a is used to fix and assemble in the through hole of the moving part 2000. Among them, a sealing ring 200b and a sealing cover 200c and other structures can also be provided between the release part 200 and the moving part 2000 to reduce the risk of blood leakage from the release part 200 and improve the sealing of the conveyor handle. Those skilled in the art can select a suitable assembly method according to their needs, which is not limited here.

[0081] The binding wire controller 3000 can adopt various structures to realize the control connection of the binding guide wire 300, for example, Figure 6 and Figure 7As shown, in one embodiment, the binding wire controller 3000 includes a controller spindle 3100, a controller end cover 3200 and a controller base 3300, the controller spindle 3100 has an axially through binding wire channel, the binding wire channel is used to pass the binding guide wire 300, the controller end cover 3200 can be connected with the controller spindle 3100, and is used to lock the binding guide wire 300, so that the controller spindle 3100, the controller end cover 3200 and the binding guide wire 300 can be integrated and can be withdrawn synchronously. Among them, the controller spindle 3100 and the controller end cover 3200 can also be integrally formed, as long as they can meet the release and locking of the binding guide wire 300. Or, another way, the controller spindle 3100 and the controller end cover 3200 can change the shape so that the controller spindle 3100 abuts the controller end cover 3200 against the moving part 2000. Those skilled in the art can construct the assembly relationship between the controller main shaft 3100 and the controller end cover 3200 and the release and locking method of the restraining guide wire 300 according to actual needs, which are not limited here.

[0082] The controller base 3300 is connected to the main body base 1000, and the controller end cover 3200 is detachably connected to the controller base 3300, and then detachably connected to the main body base 1000 through the controller base 3300. The proximal end of the main body base 1000 may be provided with a proximal base cover 1000a, and the controller base 3300 may also be connected to the main body base 1000 through the proximal base cover 1000a. The controller base 3300 may be in a variety of structures, for example, a cylindrical base, the controller end cover 3200 is an end cap structure that can be sleeved on the end of the cylindrical base, and the controller end cover 3200 and the controller base 3300 may be connected in a variety of ways such as threaded connection and clamping connection, for example, the controller end cover 3200 is assembled on the end of the controller base 3300 by threading.

[0083] In one embodiment, the conveyor handle includes a guidewire controller 6000, which is used to connect the pre-buried guidewire 400. The pre-buried guidewire 400 is a guidewire that is pre-entered from the outside of the stent graft 100 into the window 110 of the stent graft 100, and then passes out from the bare end of the stent graft 100. The purpose of the pre-buried guidewire 400 is to pre-establish a guidewire passage to facilitate the super-selection of branch arteries during surgery, improve the operability and convenience of the instrument, and shorten the operation time. The guidewire controller 6000 is movably assembled relative to the main base 1000, for example, the guidewire controller 6000 is movably arranged in the inner cavity of the main base 1000.

[0084] See also Figure 8 and Fig. 9As shown, in one embodiment, the guidewire controller 6000 includes a first device base 6100a, a guidewire locking structure 6100b and a first device end cover 6100c, the first device base 6100a has a first guidewire channel, the first guidewire channel of the first device base 6100a is used to pass the embedded guidewire 400, the guidewire locking structure 6100b is arranged on the first device base 6100a, the guidewire locking structure 6100b has a locking state and a release state, the locking state is used to lock the embedded guidewire 400, and the release state is used to release the embedded guidewire 400, the first device end cover 6100c is detachably assembled on the first device base 6100a, and is used to cooperate with the guidewire locking structure 6100b to control the guidewire locking structure 6100b to switch between the locking state and the release state.

[0085] In some embodiments of the present application, the guidewire locking structure 6100b includes at least two locking unit portions 6100b1, and a locking gap 6100b2 is provided between the at least two locking unit portions 6100b1. The locking gap 6100b2 is used to pass the embedded guidewire 400. The first device end cover 6100c is used to apply a force to the at least two locking unit portions 6100b1 so that the at least two locking unit portions 6100b1 are close to each other, and the embedded guidewire 400 is locked by reducing the gap size of the locking gap 6100b2, or the at least two locking unit portions 6100b1 are separated from each other by canceling the force applied to the at least two locking unit portions 6100b1, and the embedded guidewire 400 is released by increasing the gap size of the locking gap 6100b2.

[0086] Continue reading Figure 8 and Fig. 9 As shown, the first device base 6100a and the first device end cover 6100c can be detachably assembled using a variety of structures. For example, the first device base 6100a is a cylindrical base, and the first device end cover 6100c is an end cap structure that can be mounted on the end of the cylindrical base. The first device end cover 6100c and the first device base 6100a can be connected in a variety of ways, such as threaded connection, snap-on connection, etc. For example, the end cap structure is threadedly assembled on the end of the cylindrical base. When the end cap structure is threadedly assembled on the cylindrical base, it can also simultaneously apply a force to the locking unit part 6100b1, so that at least two locking unit parts 6100b1 are close to each other. After the end cap structure thread is loosened from the cylindrical base, the at least two locking unit parts 6100b1 can be separated from each other.

[0087] The locking unit part 6100b1 of the guide wire locking structure 6100b can adopt a variety of structures. For example, the guide wire locking structure 6100b adopts a locking copper core that can be assembled on the first device base 6100a, and the locking unit part 6100b1 is a multi-petal structure included in the locking copper core, such as Fig. 9 As shown, after the embedded guide wire 400 is inserted into the first device base 6100a equipped with a locking copper core, the first device end cover 6100c is tightened by threads, and the four-petal structure on the locking copper core can be compressed toward the center under the action of the extrusion force, thereby locking the embedded guide wire 400 and achieving the effect of fixing the embedded guide wire 400. The first device end cover 6100c is loosened by threads, and the operator can choose to withdraw the embedded guide wire 400 from the proximal end or the distal end according to needs.

[0088] Continue reading Fig.10 and Fig.11 As shown, in some embodiments, the guidewire controller 6000 includes a second device base 6200a and a second device end cap 6200b, the second device base 6200a has a second guidewire channel, the second guidewire channel of the second device base 6200a is used to pass the embedded guidewire 400, the second device end cap 6200b is detachably mounted on the second device base 6200a, and the second device end cap 6200b is connected to the embedded guidewire 400 to drive the embedded guidewire 400 to move in the second guidewire channel. The second device end cap 6200b can be connected to the embedded guidewire 400 in a variety of structures, for example, the two are directly connected or indirectly connected through a connecting member 6200c such as a connecting tube, a connecting ball, etc. See. Fig.11 As shown, a step hole with a step structure may be provided on the first device end cap 6100c, and the embedded guide wire 400 may pass through the step hole, but the connecting member 6200c may be mutually limited with the step structure of the step hole, so that the connecting member 6200c may be first limited and positioned in the step hole, and then the connecting member 6200c may be fixed in the step hole by a method such as bonding. The step hole may be mutually adapted to the structure and shape of the connecting member 6200c, so that the two may be assembled and fixed in a mutually matching manner.

[0089] The second device base 6200a and the second device end cover 6200b are analogous to the first device base 6100a and the first device end cover 6100c, and various structures can be used for detachable assembly according to needs. For example, the second device base 6200a is a cylindrical base, and the second device end cover 6200b is an end cap structure that can be mounted on the end of the cylindrical base. The second device end cover 6200b and the second device base 6200a can be connected in various ways such as threaded connection and snap-on connection. For example, the end cap structure is assembled on the end of the cylindrical base by threads. After fixing the connecting member 6200c and the embedded guide wire 400, the embedded guide wire 400 can be indirectly fixedly connected to the first device end cover 6100c through the connecting member 6200c. At this time, the first device end cover 6100c and the embedded guide wire 400 can become one. After the first device end cover 6100c is fixed relative to the first device base 6100a, the embedded guide wire 400 cannot be withdrawn. When the first device end cover 6100c is withdrawn, the embedded guide wire 400 can be controlled to withdraw at the same time.

[0090] The present application provides a conveyor, which includes a conveyor handle. Since the specific structure, functional principle and technical effect of the conveyor handle are described in detail above, they will not be repeated here. Any technical content related to the conveyor handle can refer to the above records.

[0091] The present application provides a stent release method based on a conveyor handle or a conveyor, and the stent release method includes the following steps: withdrawing the restraining wire controller 3000 in the proximal direction relative to the main base 1000, using the restraining wire controller 3000 to drive the restraining guide wire 300 to withdraw in the proximal direction, so that the restraining guide wire 300 releases the restraint on the coated stent 100, and releasing the restraining wire controller 3000 from limiting the contact of the moving part 2000, allowing the moving part 2000 to withdraw in the proximal direction; at this time, withdraw the moving part 2000 in the proximal direction, and use the moving part 2000 to drive the release part 200 to synchronously withdraw in the proximal direction, so that the release part 200 releases the coated stent 100.

[0092] Therefore, after the stent graft 100 is implanted at the target position, when the stent graft 100 needs to be released, the operator can first release the restraints on the stent graft 100 in the above order, and then release the stent graft 100, and the order cannot be reversed. For cases such as non-infrarenal abdominal aortic aneurysms, the stent release method based on the conveyor handle simplifies the operating procedures in interventional surgery, improves the release accuracy of the stent graft 100, improves the safety of the operation, and reduces the risk of misoperation during the operation. Since the specific structure, functional principle and technical effects of the conveyor handle are described in detail in the previous text, they will not be repeated here. Any technical content related to the conveyor handle can refer to the previous records.

[0093] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A conveyor handle, characterized in that: The conveyor handle comprises: A main body base, wherein the main body base has a motion track; A moving component, the moving component is movably assembled relative to the main body base along the moving track, and the moving component is used to connect the release component; A binding wire controller is used to connect the binding guide wire, and the binding wire controller is movably assembled relative to the main base, wherein the binding wire controller can be in limited contact with the moving part to limit the moving part and the releasing part from retreating toward the proximal direction of the main base.

2. The conveyor handle according to claim 1, characterized in that: The conveyor handle also includes: A transfer component, the transfer component is rotatably assembled on the main body base; A limiting component is connected to the moving component, wherein the limiting component is used to cooperate with the adapter component in a limiting manner, so that the limiting component controls the adapter component to rotate or lock relative to the main base.

3. The conveyor handle according to claim 2, characterized in that: The main body base is a cylindrical base, the motion track is arranged in the inner cavity of the cylindrical base, the motion component is assembled in the inner cavity of the cylindrical base along the motion track, the binding wire controller and the binding guide wire are movably arranged in the inner cavity of the cylindrical base, and the adapter component is an adapter cylinder, which is assembled on the cylindrical base in a fixed-axis rotation manner; and / or, The adapter component has a matching locking structure, and the limiting component is locked with the locking structure to limit the rotation of the adapter component relative to the main base; and / or, The main body base is provided with a control component, and the control component is control-connected with the moving component to control the moving component to move along the moving track.

4. The conveyor handle according to claim 1, characterized in that: The binding wire controller comprises: A controller end cover, the controller end cover is used to lock the restraining guide wire; A controller base is connected to the main body base, and the controller end cover is detachably connected to the main body base through the controller base.

5. The conveyor handle according to claim 1, characterized in that: The conveyor handle comprises: A guidewire controller is used to connect the pre-buried guidewire, and the guidewire controller is movably assembled relative to the main body base.

6. The conveyor handle according to claim 5, characterized in that The guidewire controller comprises: A first device base, wherein the first device base has a first guide wire channel for inserting a pre-buried guide wire; A guidewire locking structure, the guidewire locking structure is arranged on the first device base, the guidewire locking structure has a locking state and a release state, the locking state is used to lock the pre-embedded guidewire, and the release state is used to release the pre-embedded guidewire; A first device end cap is detachably mounted on the first device base and is used to control cooperation with the guidewire locking structure, thereby controlling the guidewire locking structure to switch between a locked state and a released state.

7. The conveyor handle according to claim 6, characterized in that The guidewire locking structure comprises at least two locking unit parts, a locking gap is provided between at least two of the locking unit parts, the locking gap is used to insert a pre-buried guidewire, the first device end cover is used to apply a force to the at least two locking unit parts so that the at least two locking unit parts are close to each other, and the pre-buried guidewire is locked by reducing the gap size of the locking gap, or the force applied to the at least two locking unit parts is cancelled so that the at least two locking unit parts are separated from each other, and the pre-buried guidewire is released by increasing the gap size of the locking gap; and / or, The first device end cover is threadedly connected to the first device base.

8. The conveyor handle according to claim 5, characterized in that: The guidewire controller comprises: A second device base, wherein the second device base has a second guide wire channel for inserting a pre-buried guide wire; The second device end cover is detachably mounted on the second device base, and the second device end cover is connected to the embedded guide wire to drive the embedded guide wire to move in the second guide wire channel.

9. A conveyor, characterized in that: The conveyor comprises the conveyor handle according to any one of claims 1-8.

10. A method for releasing a support based on the conveyor handle according to any one of claims 1 to 8 or the conveyor according to claim 9, characterized in that: The stent release method comprises: The binding wire controller is withdrawn relative to the main body base in a proximal direction, and the binding wire controller is used to drive the binding guide wire to withdraw in a proximal direction, so that the binding guide wire releases the binding of the stent graft and releases the limiting contact of the binding wire controller with the moving component; The moving component is withdrawn toward the proximal direction, and the releasing component is driven to be synchronously withdrawn toward the proximal direction by the moving component, so that the releasing component releases the stent graft.

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