Valve clamp pull wire control handle

Abstract

The utility model discloses a valve clamp pull wire control handle which comprises a shell, a first connector, a second connector, a first traction assembly, a second traction assembly, a steel cable and a pull rod assembly. The first connector and the second connector are arranged in the shell, the first connector is provided with a first counter bore, a first wire hole, a second wire hole and a center hole, the second connector is provided with a main cavity channel, a first cavity channel, a second cavity channel and a third cavity channel, and the head end of the second connector is connected with the tail end of the first connector; one end of the first traction assembly is connected with the first cavity, and the other end extends to the outer side of the shell; one end of the second traction assembly is connected with the second cavity, and the other end extends to the outer side of the shell; the steel cable sequentially penetrates through the first counter bore, the center hole and the third cavity channel. At least part of the pull rod assembly is inserted into the shell, one end of the steel cable is connected with the pull rod assembly, and the pull rod assembly is used for pulling the steel cable and driving the steel cable to rotate. According to the utility model, the stay wires are easier to penetrate through, and the stay wires are not intertwined during use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a valve clamp pull wire control handle. Background Art

[0002] The heart repeatedly contracts and relaxes to circulate blood. During systole, blood moves from the heart to the blood vessels; from the right ventricle, blood moves to the pulmonary artery; from the left ventricle, blood moves to the aorta. However, if the valves do not function properly, blood that should flow to the blood vessels during systole may flow backwards, redirecting it back to the atria.

[0003] The U.S. authorized patent with publication number US20040049207A1 discloses a fixation device and method for joining tissues. It uses minimally invasive or intravascular interventional surgery to achieve a breakthrough in clamping and fixing the heart valve, thereby solving the regurgitation problem in the valve area. For a long time afterwards, this solution achieved rapid development due to its technical advantages. At present, the use of valve clamping to treat regurgitation has become one of the mainstream means of treating heart valve regurgitation. Commonly, a sliding component is provided on the handle, and the opening and closing of the first and second clamping arms of the valve clamp are achieved by regulating the sliding component, thereby achieving clamping and fixing of the heart valve and solving the regurgitation problem in the valve area.

[0004] Since the frequency of valve opening and closing is very high, the sliding assembly needs to have smooth control, quick response and accuracy. By manipulating the sliding assembly, the opening or closing of the upper and lower clamps can be controlled quickly, smoothly and accurately. Therefore, the fitting between the manipulating sliding assemblies cannot be tight (interference fit). However, before the operation, it is necessary to use normal saline or heparin saline to deliver the manipulating sliding assembly in the handle to flush it, and considering the problem of blood seepage during the operation, the manipulating sliding assembly needs to be tightly fitted to avoid the problem of exudation.

[0005] At present, in order to improve the smooth sliding controllability, accuracy and sealing of the handle, one or more knobs are usually installed on the handle shell, and the metal wire or polymer wire is fixed to the inside of the knob. By rotating the knob, the forward and backward movement of the wire is regulated to realize the movement of the sheath head. However, since the rotation process cannot achieve the characteristic of rapid response, it is not suitable for valve clip devices. In order to be compatible with the characteristics of rapid response at the same time, Abbott invented a Mitra clip device, which replaces the knob with a push-pull part to achieve the effect of rapid response. However, the handle is large, the operation process is more difficult, and the pull wires are easily entangled with each other in the handle, which is not convenient for assembly and use. Utility Model Content

[0006] The utility model solves the deficiencies of the prior art and provides a valve clamp pull wire control handle.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A valve clamp pull wire control handle, which includes a shell, a first joint, a second joint, a first pulling assembly, a second pulling assembly, a steel cable and a pull rod assembly; the first joint is arranged in the shell, the head end of the first joint is provided with a first countersunk hole, the tail end of the first joint is provided with a first wire hole, a second wire hole and a center hole connected to the first countersunk hole; the second joint is arranged in the shell, the head end of the second joint is provided with a main cavity, the head end of the second joint is connected to the tail end of the first joint, and the tail end of the second joint is provided with a first cavity, a second cavity and a center hole connected to the main cavity cavity and a third cavity; one end of the first pulling assembly is connected to the first cavity, and the other end extends to the outside of the shell, and the first pulling assembly is used to pull a pull line of the valve clamp; one end of the second pulling assembly is connected to the second cavity, and the other end extends to the outside of the shell, and the first pulling assembly is used to pull another pull line of the valve clamp; the steel cable passes through the first countersunk hole, the center hole, and the third cavity in sequence; at least part of the pull rod assembly is inserted into the shell, one end of the steel cable is connected to the pull rod assembly, and the pull rod assembly is used to pull the steel cable and drive the steel cable to rotate.

[0009] During use of the present invention, one pull wire is sequentially passed through the first countersunk hole, the first wire hole, the main cavity, and the first cavity; the other pull wire is sequentially passed through the first countersunk hole, the second wire hole, the main cavity, and the second cavity. At the head end of the handle, each pull wire has its own independent threading channel, and the pull wires will not affect each other. Therefore, the handle is easier to thread the pull wires, and the pull wires will not be entangled with each other during use.

[0010] In some embodiments, a water injection pipe is provided on the side wall of the first joint, one end of the water injection pipe extends to the outside of the shell and is provided with a water injection channel connected with the first wire hole, the second wire hole and the center hole.

[0011] This embodiment integrates the water injection tube into the handle instead of an extension tube, which reduces the size and complexity of the handle.

[0012] In some embodiments, the third lumen is coaxial with the central hole, and the first lumen and the second lumen are respectively located on either side of the third lumen.

[0013] By making the third cavity coaxial with the center hole, it is convenient to pass the steel cable through. By making the first cavity and the second cavity respectively located on both sides of the third cavity, the two pull wires can be separated to avoid the pull wires from being entangled with each other, while providing sufficient space for the assembly of the first pulling component and the second pulling component.

[0014] In some embodiments, the pulling assembly includes a guide rod, a sliding tube and a plug, one end of the guide rod is connected to the first joint, and the guide rod is provided with a third wire hole running through both ends thereof; the sliding tube includes a first section and a second section connected to each other, the first section is provided with a sliding cavity, the guide rod is inserted into the sliding cavity and can slide relative to the sliding tube, and the second section is provided with an outer cavity connected to the sliding cavity; the plug blocks one end of the outer cavity away from the sliding cavity and is used to fix one end of the pull wire; the third wire hole in the first pulling assembly is connected to the first cavity, and the third wire hole in the second pulling assembly is connected to the second cavity.

[0015] This embodiment adopts a push-pull design of a sliding tube and a guide rod, which avoids the problem of slow release of the front end wire of the delivery catheter existing in a rotary handle, and realizes smooth sliding operation, accuracy and fast responsiveness.

[0016] Furthermore, a first slide, a second slide, a first tail end gear slot, a second tail end gear slot and an intermediate gear slot are provided on the outer wall of the shell. The second section of the first pulling component extends from the first slide to the outside of the shell, and the second section of the second pulling component extends from the second slide to the outside of the shell. The second section of the first pulling component can slide in the first slide along a direction parallel to the axis of the first section, and the second section of the second pulling component can slide in the second slide along a direction parallel to the axis of the first section. The first tail end gear slot is connected to the tail section of the first slide, the second tail end gear slot is connected to the tail section of the second slide, and the intermediate gear slot is connected to the middle section of the first slide.

[0017] By arranging a first slide, a second slide, a first tail end gear slot, a second tail end gear slot and an intermediate gear slot on the outer wall of the shell, different gears can be provided during use, and the pulling component can be easily stopped at different gear positions, which is convenient for the doctor's surgical operation.

[0018] In some embodiments, a first partition is provided in the outer shell, and a snap groove and a first through hole are provided on the first partition, the first through hole passes through the first partition, and the snap groove is located at one end of the first partition adjacent to the first joint; the pull rod assembly includes a rod head and a rod body, the rod head is located in the first through hole, and a snap portion is provided at the head end of the rod head, which extends radially outward along the rod head, and the snap portion is at least partially inserted into the snap groove to prevent the rod head from rotating; the head end of the rod body is connected to the tail end of the rod head, and the tail end of the rod body extends outside the outer shell; the steel cable is connected to the rod head and / or the rod body.

[0019] The first partition can limit the rod head, and the buckle portion cooperates with the buckle groove to effectively prevent the rod body from rotating during transportation, ensuring that the valve clip will not fall off or move easily during transportation.

[0020] Furthermore, the rod head is provided with a third through hole running through its head end and tail end, the side wall of the rod head is provided with a slot connected to the third through hole, the head end of the rod body is provided with an elastic part, the elastic part is provided with a protrusion extending radially outward along the rod body, the elastic part can be elastically deformed along the radial direction of the rod body, the elastic part is inserted into the third through hole and the protrusion is inserted into the slot, and the steel cable passes through the third through hole.

[0021] This embodiment realizes a detachable connection between the club head and the club shaft, which facilitates the assembly of the club head and the club shaft.

[0022] Furthermore, a steel cable hole extending from the head end of the rod body to the tail end of the rod body is provided on the rod body. After the head end of the rod body is inserted into the third through hole, the steel cable hole is connected with the third through hole. A threaded hole is provided on the side wall of the rod body, and the threaded hole is connected with the third through hole. The steel cable passes through the third through hole and the steel cable hole, and a top screw for pressing the steel cable is provided in the threaded hole.

[0023] In this embodiment, the steel cable is fixed by a top screw. The fixing method of the steel cable is very simple, which helps to reduce the difficulty of assembling the handle.

[0024] Furthermore, a second groove communicating with the steel cable hole is provided on the rod body, and the second groove is filled with glue to fix the steel cable to the rod body.

[0025] In this embodiment, the steel cable is fixedly connected to the rod body by filling the second groove with glue, which also has a lower assembly difficulty and can further improve the firmness of the steel cable.

[0026] Furthermore, a first groove communicating with the third through hole is provided on the side wall of the rod head, and the first groove is filled with glue to fix the steel cable to the rod head.

[0027] In this embodiment, the steel cable is fixedly connected to the rod head by filling the first groove with glue, which also has a low assembly difficulty.

[0028] Furthermore, the valve clamp pull wire control handle also includes a compression spring, and a second partition is provided in the outer shell. The second partition is located between the first partition and the head end of the rod body. There is a distance between the second partition and the first partition. A second through hole suitable for the rod body to pass through is provided on the second partition. One end of the compression spring is connected to the rod head, and the other end of the compression spring is connected to the second partition.

[0029] In this embodiment, the connection stability of the protrusion on the elastic part can be improved by arranging a compression spring between the second partition plate and the rod head.

[0030] In some embodiments, the pulling assembly includes a wire tube, a rotating member and a pulling member; a second countersunk hole is provided on the wire tube, an end tube is provided on the wire tube, a socket connected to the second countersunk hole is provided on the end tube, and one end of the end tube extends out of the outer shell away from the second countersunk hole; a third countersunk hole is provided at one end of the rotating member, and a receiving groove is provided at the other end of the rotating member, and the receiving groove and the third countersunk hole are connected by a connecting hole, the end tube is inserted into the third countersunk hole, and the rotating member can rotate around the axis of the end tube; the pulling member includes a pulling head and a winding column, the winding column is inserted into the connecting hole and the socket in turn, the pulling head is inserted into the receiving groove, and the pulling member rotates synchronously with the rotating member; the wire tube of the first pulling assembly is connected to the second joint, and the second countersunk hole of the first pulling assembly is connected to the first cavity; the wire tube of the second pulling assembly is connected to the second joint, and the second countersunk hole of the second pulling assembly is connected to the second cavity.

[0031] This embodiment adopts a knob and a latch-like wire control device design, which combines the advantages of slow rotation control and fast latch-like release, allowing doctors to quickly operate the valve clip.

[0032] Furthermore, a sealing ring is embedded on the inner wall of the connecting hole.

[0033] The sealing ring provided in this embodiment can improve the sealing effect of the rotating part and prevent liquid from leaking from the gap between the winding column and the connecting hole.

[0034] Furthermore, a flange is provided at one end of the terminal tube away from the second countersunk hole, and an annular groove matching the flange is provided in the third countersunk hole, and the flange is clamped in the annular groove.

[0035] This embodiment can prevent the rotating member from falling off from the terminal tube by clamping the flange in the annular groove.

[0036] Furthermore, the receiving groove and the drawing head are both in the shape of a hexagonal prism.

[0037] The hexagonal shaped receiving groove and the drawing head in this embodiment have lower processing difficulty, which is helpful to reduce production costs.

[0038] In some embodiments, a tail groove is provided at the tail end of the outer shell, and the pull rod assembly includes a center rod and a knob, a steel cable hole is provided on the center rod, one end of the center rod is inserted into the outer shell and connected to the second joint, and one end of the steel cable is fixed in the steel cable hole; the knob is connected to the tail end of the center rod.

[0039] In this embodiment, the knob can be embedded in the tail groove to prevent the knob from being accidentally touched during transportation, ensuring that the valve clamp will not easily fall off or move during transportation; at the same time, when controlling the steel cable to release the valve clamp, there is no need to push the valve clamp forward, which is more suitable for steel cables and valve clamp devices with threaded connections.

[0040] Furthermore, a disc portion is provided at the tail end of the center rod, the diameter of the disc portion is larger than the diameter of the center rod, and a pit is provided at one end of the disc portion adjacent to the first joint; the knob includes an end cover portion, an annular body portion, an inner edge portion and a boss portion, the end cover portion is connected to the tail end of the annular body portion, the inner edge portion extends radially inward along the annular body portion, a rod hole is provided at the center of the inner edge portion, and the boss portion is connected to one end of the inner edge portion adjacent to the end cover portion; the disc portion is located in the space formed by the end cover portion, the annular body portion and the inner edge portion, the center rod passes through the rod hole, and the boss portion can be inserted into the pit and prevent the knob from rotating relative to the center rod.

[0041] This embodiment can achieve synchronous rotation of the knob and the center rod by matching the boss part with the pit. At the same time, during transportation, the boss part can be separated from the pit to ensure that the valve clip will not fall off or move easily during transportation.

[0042] Furthermore, the pull rod assembly also includes an elastic member, which is arranged in a space formed by the end cover portion, the annular body portion and the inner edge portion and drives the boss portion to be pulled out from the pit.

[0043] The additional elastic member in this embodiment can ensure that the boss portion and the recess remain separated when the knob is not subjected to external force, thereby further ensuring that the valve clip will not fall off or move easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1a 、 1b It is a three-dimensional diagram of embodiment 1 of the present utility model.

[0046] Figure 1c It is a cross-sectional view of embodiment 1 of the present invention.

[0047] Figure 2 This is a view of the shell after being disassembled in Example 1 of the utility model.

[0048] Figure 3 This is a view of Example 1 of the present invention in which the right half of the housing is hidden.

[0049] Figure 4a It is a stereoscopic diagram of the first joint and the water injection pipe in Example 1 of the present utility model.

[0050] Figure 4b It is a cross-sectional view of the first joint and the water injection pipe in Example 1 of the present utility model.

[0051] Figure 5a It is a three-dimensional diagram of the second joint in Example 1 of the present utility model.

[0052] Figure 5b It is a cross-sectional view of the second joint in Example 1 of the present utility model.

[0053] Figure 6 It is a cross-sectional view of the guide rod in Example 1 of the present utility model.

[0054] Figure 7 It is a cross-sectional view of the sliding tube in Example 1 of the present utility model.

[0055] Figure 8 This is an exploded view of the pull rod assembly in Example 1 of the present utility model.

[0056] Figure 9a It is a cross-sectional view of the shaft in Example 1 of the present utility model.

[0057] Figure 9b yes Figure 9a Schematic diagram after the steel cable is inserted.

[0058] Figure 10a It is a three-dimensional diagram of the club head in Example 1 of the present utility model.

[0059] Figure 10b It is a cross-sectional view of the club head in Example 1 of the present utility model.

[0060] Figure 11a It is a three-dimensional diagram of embodiment 2 of the present utility model.

[0061] Figure 11b It is a cross-sectional view of embodiment 2 of the present utility model.

[0062] Figure 12 It is a cross-sectional view of the housing in Example 2 of the present utility model.

[0063] Figure 13 It is a cross-sectional view of the center line tube in Example 2 of the present utility model.

[0064] Figure 14 It is a three-dimensional diagram of the rotating part and the pulling part when assembled together in Example 2 of the present utility model.

[0065] Figure 15a It is a three-dimensional diagram of the rotating part in Example 2 of the present utility model.

[0066] Figure 15b It is a cross-sectional view of the rotating part in Example 2 of the present utility model.

[0067] Figure 16 It is a three-dimensional diagram of the pulling piece in Example 2 of the present utility model.

[0068] Figure 17a It is a three-dimensional diagram of the pull rod assembly in Example 2 of the present utility model.

[0069] Figure 17b It is a cross-sectional view of the pull rod assembly in Example 2 of the present utility model.

[0070] Figure 18 It is a three-dimensional diagram of the center rod in Example 2 of the present utility model.

[0071] Figure 19a This is a front view of the knob in Example 2 of the present utility model.

[0072] Figure 19b yes Figure 19a Sectional view along line AA.

[0073] Figure 19c yes Figure 19a Cross-sectional view along line BB.

[0074] The following are the descriptions of the reference numerals:

[0075] In the figure: 1, housing; 101, right half; 102, left half; 103, first slide; 104, second slide; 105, first tail end gear slot; 106, second tail end gear slot; 107, middle gear slot; 108, first partition; 1081, buckle slot; 1082, first through hole; 109, second partition; 1091, second through hole; 1092, spring slot; 2, first connector; 201, first countersunk hole; 202, first wire hole; 203, second wire hole; 204, middle Core hole; 3, second joint; 301, main cavity; 302, first cavity; 303, second cavity; 304, third cavity; 4, first pulling assembly; 5, second pulling assembly; 6, steel cable; 7, pull rod assembly; 701, rod head; 7011, buckle portion; 70111, oblique tip; 7012, third through hole; 7013, notch; 7014, first slot; 7015, external thread; 702, rod body; 7021, elastic portion; 7022, bump; 7023, steel cable hole; 7 024, threaded hole; 7025, second slot; 703, top screw; 704, center rod; 7041, cable hole; 7042, disc; 70421, recess; 705, knob; 7051, end cap; 7052, ring body; 7053, inner edge; 70531, rod hole; 7054, boss; 706, elastic member; 8, water injection pipe; 801, water injection channel; 9, guide rod; 901, third line hole; 902, sealing groove; 10, slide tube; 1001, first section ;10011, sliding cavity; 1002, second section; 10021, outer cavity; 11, plug; 12, compression spring; 13, wire tube; 1301, second countersunk hole; 1302, end tube; 13021, jack; 13022, flange; 14, rotating part; 1401, third countersunk hole; 1402, accommodating groove; 1403, connecting hole; 1404, ring groove; 15, pulling part; 1501, pulling head; 1502, winding column; 16, sealing ring; 17, silicone ring; 18, tail groove. DETAILED DESCRIPTION

[0076] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present application, but are not intended to limit the scope of the present application. The present application may be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0077] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0078] It should be noted that, in the description of this application, unless otherwise specified, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0079] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0080] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0081] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0082] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0083] The head end described in the utility model is the end of the valve clamp wire control handle that is close to the heart when in use, and the tail end is the end of the valve clamp wire control handle that is away from the heart when in use.

[0084] Example 1

[0085] See Figure 1- Figure 10b As shown, this embodiment provides a valve clip pull wire control handle, which includes a housing 1, a first joint 2, a second joint 3, a first pulling assembly 4, a second pulling assembly 5, a steel cable 6 and a pull rod assembly 7.

[0086] like Figure 1a and Figure 2 As shown, the housing 1 is composed of a left half 102 and a right half 101. To facilitate the doctor's hand-holding, the housing 1 is roughly cylindrical in shape after assembly. The diameter of the front end of the housing 1 is smaller than the diameter of the rear end of the housing 1, and the diameter of the front end of the housing 1 is suitable for accommodating the first connector 2. To ensure the structural strength of the housing 1, ribs can be provided on the inner wall of the housing 1. When providing the ribs, the ribs should be positioned so as not to interfere with other components.

[0087] The first connector 2 is installed inside the housing 1 and is located at the head end of the housing 1. Figure 4b As shown, the head end of the first connector 2 is provided with a first countersunk hole 201. After the first connector 2 is installed inside the housing 1, the first countersunk hole 201 is connected to the outside to facilitate the insertion of the delivery catheter into the first countersunk hole 201. After the delivery catheter is inserted into the first countersunk hole 201, the delivery catheter can be fixedly connected to the first connector 2 by glue. The tail end of the first connector 2 is provided with a first wire hole 202, a second wire hole 203 and a center hole 204 that are connected to the first countersunk hole 201. The first wire hole 202 and the second wire hole 203 are located on both sides of the center hole 204, and the first wire hole 202 and the second wire hole 203 are symmetrical about the center line of the center hole 204. In order to facilitate the movement of the steel cable 6 in the center hole 204, the diameter of the center hole 204 is at least 0.01 mm larger than the diameter of the steel cable 6.

[0088] The second connector 3 is also mounted inside the housing 1, near the rear end of the housing 1 relative to the first connector 2. The head end of the second connector 3 is provided with a main lumen 301, which is connected to the rear end of the first connector 2 via a Luer connection. The first thread hole 202, the second thread hole 203, and the center hole 204 of the first connector 2 are all connected to the main lumen 301. The rear end of the second connector 3 is provided with a first lumen 302, a second lumen 303, and a third lumen 304, which are connected to the main lumen 301.

[0089] One end of the first pulling assembly 4 is connected to the first lumen 302, and the other end extends to the outside of the housing 1. The first pulling assembly 4 is used to pull a pull line of the valve clamp. One end of the second pulling assembly 5 is connected to the second lumen 303, and the other end extends to the outside of the housing 1. The first pulling assembly 4 is used to pull another pull line of the valve clamp. The steel cable 6 passes through the first countersunk hole 201, the center hole 204, and the third lumen 304 in sequence. To facilitate the insertion of the steel cable 6, the third lumen 304, the main lumen 301, the center hole 204, and the first countersunk hole 201 can be coaxial. At least a portion of the pull rod assembly 7 is inserted into the housing 1, and one end of the steel cable 6 is connected to the pull rod assembly 7. The pull rod assembly 7 is used to pull the steel cable 6 and drive the steel cable 6 to rotate.

[0090] like Figure 4b As shown, a water injection pipe 8 is provided on the side wall of the first connector 2. One end of the water injection pipe 8 extends outside the housing 1 and defines a water injection channel 801 that communicates with the first and second linear holes 202, 203, and the center hole 204. During preoperative venting, saline, heparinized saline, or the like can be connected to the water injection pipe 8 via a Luer connection and flushed through the water injection channel 801 to the handle and delivery catheter.

[0091] In this embodiment, the third lumen 304 is coaxial with the central hole 204. The first lumen 302 and the second lumen 303 are located on either side of the third lumen 304. The first lumen 302 and the second lumen 303 are symmetrical about the axis of the third lumen 304. The first lumen 302 and the second lumen 303 are arranged in a V-shape, with an angle of approximately 60 degrees between them.

[0092] In this embodiment, the first pulling assembly 4 and the second pulling assembly 5 are composed of the same parts, and the first pulling assembly 4 and the second pulling assembly 5 are symmetrical about the central axis of the housing 1. Figure 1c As shown, the pull assembly includes a guide rod 9, a slide tube 10, and a plug 11. The tip of the guide rod 9 is connected to the first connector 2 by a Luer connection. The guide rod 9 is provided with a third wire hole 901 extending through both ends. The slide tube 10 is L-shaped and includes a first section 1001 and a second section 1002 connected to each other. The first section 1001 is provided with a sliding cavity 10011. The diameter of the sliding cavity 10011 is larger than that of the guide rod 9. The guide rod 9 is inserted into the sliding cavity 10011 and can slide relative to the slide tube 10. The second section 1002 is provided with an outer cavity 10021 connected to the sliding cavity 10011. The plug 11 blocks the end of the outer cavity 10021 away from the sliding cavity 10011 and is used to secure one end of the pull wire. The third wire hole 901 in the first pull assembly 4 is connected to the first lumen 302, and the third wire hole 901 in the second pull assembly 5 is connected to the second lumen 303.

[0093] To improve the seal between the guide rod 9 and the slide tube 10, a sealing groove 902 is provided at the tail end of the guide rod 9. This groove 902 circumscribes the outer wall of the guide rod 9 and contains a silicone ring 17. The width of the sealing groove 902 should be 0.01 to 0.05 mm greater than the thickness of the silicone ring 17 to prevent the seal groove 902 from being too wide, which could cause the silicone ring 17 to move when the slide tube 10 is pushed. The depth of the sealing groove 902 should be neither too deep nor too shallow. A too deep groove 902 could affect the mechanical properties of the tail end of the guide rod 9, while a too shallow groove 902 could easily cause the silicone ring 17 to dislodge when the slide tube 10 slides. The depth of the sealing groove 902 can be between 0.8 and 2 mm. After the silicone ring 17 is installed in the sealing groove 902, the outer diameter of the silicone ring 17 should be greater than or equal to the inner diameter of the sliding cavity 10011, preferably 0.01 to 0.05 mm, preferably 0.02 to 0.04 mm, larger than the inner diameter of the sliding cavity 10011, to ensure both excellent sealing and smooth movement of the sliding tube 10. To further enhance the smooth movement of the sliding tube 10, medical lubricant can be applied to the silicone ring 17 and the inner wall of the sliding cavity 10011.

[0094] In order to further enhance the sealing effect, the blood / water flow should be designed to flow from the small diameter to the large diameter. The diameter of the third line hole 901 should be 1-5 mm smaller than that of the sliding cavity 10011.

[0095] In this embodiment, the outer wall of the housing 1 is provided with a first slideway 103, a second slideway 104, a first tail end gear slot 105, a second tail end gear slot 106, and an intermediate gear slot 107. The second section 1002 of the first pulling assembly 4 extends from the first slideway 103 to the outside of the housing 1, and the second section 1002 of the second pulling assembly 5 extends from the second slideway 104 to the outside of the housing 1. The second section 1002 of the first pulling assembly 4 can slide within the first slideway 103 in a direction parallel to the axis of the first section 1001, and the second section 1002 of the second pulling assembly 5 can slide within the second slideway 104 in a direction parallel to the axis of the first section 1001. The first tail end gear slot 105 is connected to the tail section of the first slide 103, the second tail end gear slot 106 is connected to the tail section of the second slide 104, and the middle gear slot 107 is connected to the middle section of the first slide 103. The size of the first tail end gear slot 105, the second tail end gear slot 106 and the middle gear slot 107 can accommodate the second section 1002.

[0096] In this embodiment, a first partition 108 is provided inside the housing 1. A snap groove 1081 and a first through hole 1082 are provided on the first partition 108. The first through hole 1082 passes through the first partition 108. The snap groove 1081 is located at one end of the first partition 108 adjacent to the first joint 2. The pull rod assembly 7 includes a rod head 701 and a rod shaft 702. The rod head 701 is located in the first through hole 1082. A snap portion 7011 is provided at the head end of the rod head 701. The snap portion 7011 extends radially outwardly along the rod head 701. The snap portion 7011 is at least partially inserted into the snap groove 1081 to prevent the rod head 701 from rotating. The head end of the rod shaft 702 is connected to the tail end of the rod head 701, and the tail end of the rod shaft 702 extends outside the housing 1. The steel cable 6 is connected to at least one of the rod head 701 and the rod shaft 702. As shown in FIG. Figure 10a As shown, the outermost side of the buckle portion 7011 is provided with an oblique tip 70111, and the shape of the buckle groove 1081 matches the shape of the oblique tip 70111, so that the oblique tip 70111 on the buckle portion 7011 can be inserted into the buckle groove 1081. The first partition 108 can limit the position of the rod head 701, and the engagement of the buckle portion 7011 with the buckle groove 1081 can effectively prevent the shaft 702 from rotating during transportation, thereby ensuring that the valve clip will not easily fall off or move during transportation.

[0097] In order to achieve the connection between the rod body 702 and the rod head 701, the rod head 701 is provided with a third through hole 7012 running through its head end and tail end, and the side wall of the rod head 701 is provided with two slots 7013 connected to the third through hole 7012. The head end of the rod body 702 is provided with two elastic parts 7021, and the elastic part 7021 is provided with a protrusion 7022 extending radially outward along the rod body 702. The elastic part 7021 can be elastically deformed along the radial direction of the rod body 702. The elastic part 7021 is inserted into the third through hole 7012 and the protrusion 7022 is inserted into the slot 7013, and the steel cable 6 passes through the third through hole 7012. When assembling the shaft 702 and the club head 701 together, first align the head end of the shaft 702 with the third through hole 7012, then apply force to press the elastic part 7021 toward the axis of the shaft 702 to shorten the distance between the two protrusions 7022, and then insert the elastic part 7021 together with the protrusion 7022 into the third through hole 7012. When the protrusion 7022 is pushed to the position of the slot 7013, the elastic part 7021 rebounds so that the protrusion 7022 is stuck in the slot 7013.

[0098] In this embodiment, the rod body 702 is further provided with a cable hole 7023 extending from the head end of the rod body 702 to the tail end of the rod body 702. After the head end of the rod body 702 is inserted into the third through hole 7012, the cable hole 7023 is connected to the third through hole 7012. A threaded hole 7024 is provided on the side wall of the rod body 702. The threaded hole 7024 is connected to the third through hole 7012. The steel cable 6 is inserted into the third through hole 7012 and the cable hole 7023. A top screw 703 for pressing and securing the steel cable 6 is provided in the threaded hole 7024. When one end of the steel cable 6 is inserted into the threaded hole 7024, the top screw 703 can be screwed into the threaded hole 7024, and the end of the top screw 703 squeezes the steel cable 6, thereby achieving a fixed connection between the steel cable 6 and the rod body 702.

[0099] In order to strengthen the fixing effect between the shaft 702 and the steel cable 6, a second groove 7025 communicating with the steel cable hole 7023 can be provided on the shaft 702, and the second groove 7025 can be filled with glue to securely connect the steel cable 6 to the shaft 702. In addition, a first groove 7014 communicating with the third through hole 7012 can be provided on the side wall of the club head 701, and the first groove 7014 can be filled with glue to securely connect the steel cable 6 to the club head 701.

[0100] In this embodiment, the valve clip pull wire control handle further includes a compression spring 12, and a second partition 109 is further provided in the housing 1. The second partition 109 is located between the first partition 108 and the head end of the rod 702. There is a gap between the second partition 109 and the first partition 108. The second partition 109 is provided with a second through hole 1091 suitable for the rod 702 to pass through. One end of the compression spring 12 is connected to the rod head 701, and the other end of the compression spring 12 is connected to the second partition 109. Figure 2 As shown, a spring slot 1092 is provided on the second partition 109, into which the tail section of the compression spring 12 is installed. An external thread 7015 is provided at the tail end of the rod head 701. The diameter of the external thread 7015 is larger than the diameter of the rod head 701 and larger than the inner diameter of the head end of the compression spring 12. To enable the pull rod assembly 7 to control the rotation of the steel cable 6, the diameter of the spring slot 1092 should be larger than the outer diameter of the tail end of the compression spring 12, and the diameter of the front end of the rod body 702 should be smaller than the inner diameter of the tail end of the compression spring 12. It should be noted that the length of the compression spring 12 in its natural state must be greater than the distance from the external thread 7015 to the spring slot 1092 after the pull rod assembly 7 is loaded, to ensure the connection stability of the protrusion 7022 on the elastic portion 7021.

[0101] The working process of this embodiment is as follows:

[0102] Before valve repair, the left and right sliding tubes 10 are pulled along the axis of the guide rod 9, so that the first section 1001 of the first pulling assembly 4 stops in the first tail end gear slot 105, and the first section 1001 of the second pulling assembly 5 stops in the second tail end gear slot 106, so that the first and second clamp arms of the valve clamp are pulled to a position flush with the steel cable 6 and installed in the delivery catheter. Then, a syringe or injection pump is connected to the water injection pipe 8, and normal saline / heparinized saline is injected into the first connector 2. The normal saline / heparinized saline flows into the first line hole 202, the second line hole 203, the center hole 204, the first lumen 302, the second lumen 303, and the third lumen 304, flushing the first connector 2, the second connector 3, the guide rod 9, the sliding tube 10, and then flows into the delivery catheter to flush the valve clamp.

[0103] During valve repair, when the tip of the delivery catheter reaches the valve position, the slide tube 10 of the second retractor assembly 5 is pushed forward, causing the first section 1001 of the second retractor assembly 5 to rest in the intermediate gear slot 107, allowing the upper clamping arm to open a certain angle (not fully open) to facilitate observation and approach to the valve leaflet. After approaching the valve leaflet, the first section 1001 of the second retractor assembly 5 is pushed forward to the tip of the second slide 104, so that the valve leaflet is clamped between the first and second clamping arms. After observing that the valve clip is properly closed, the rod body 702 is pushed toward the tip of the housing 1, causing the inclined tip 70111 on the buckle portion 7011 to disengage from the buckle slot 1081. The rod body 702 is then rotated 90 degrees, and the rod head 701 is withdrawn from the first through hole 1082 to a position between the first partition 108 and the second partition 109, thereby disengaging the valve clip from the delivery catheter. Finally, the delivery catheter and wire are withdrawn.

[0104] This embodiment has the following advantages:

[0105] 1. The push-pull design of the slide tube 10 and guide rod 9 avoids the slow release of the front end wire of the delivery catheter that occurs with a rotary handle, achieving smooth sliding operation, accuracy, and rapid responsiveness.

[0106] 2. The sliding tube 10 and guide rod 9 are designed to be narrow in front and wide in the back. By introducing the silicone ring 17, the sealing performance is enhanced without affecting the smooth sliding operation.

[0107] 3. The water injection pipe 8 is integrated into the handle instead of an extension pipe, which reduces the size and complexity of the handle;

[0108] 4. While meeting the requirements of smooth sliding operation, accuracy and quick responsiveness, it solves the problem of difficulty in operation caused by the large handle size of Mitra Clip instruments invented by Abbott.

[0109] Example 2

[0110] See also Figures 11a-19c As shown, this embodiment provides a valve clip pull wire control handle, which includes a housing 1, a first joint 2, a second joint 3, a first pulling assembly 4, a second pulling assembly 5, a steel cable 6 and a pull rod assembly 7.

[0111] like Figure 11a and Figure 12 As shown, the shell 1 is composed of two halves. In order to facilitate the doctor's hand-holding, the shape of the shell 1 after splicing is roughly cylindrical. The diameter of the head end of the shell 1 is smaller than the diameter of the rear end of the shell 1, and the diameter of the front section of the shell 1 is suitable for accommodating the first connector 2.

[0112] The internal structure of the first joint 2 in this embodiment is the same as that in Example 1. The first joint 2 is installed inside the housing 1 and is located at the head end of the housing 1. The head end of the first joint 2 is provided with a first countersunk hole 201. After the first joint 2 is installed inside the housing 1, the first countersunk hole 201 is connected to the outside world to facilitate the insertion of the conveying catheter into the first countersunk hole 201. After the conveying catheter is inserted into the first countersunk hole 201, the conveying catheter can be fixedly connected to the first joint 2 by glue. The tail end of the first joint 2 is provided with a first wire hole 202, a second wire hole 203 and a center hole 204 that are connected to the first countersunk hole 201. The first wire hole 202 and the second wire hole 203 are located on both sides of the center hole 204, and the first wire hole 202 and the second wire hole 203 are symmetrical about the center line of the center hole 204. In order to facilitate the movement of the steel cable 6 in the center hole 204, the diameter of the center hole 204 is at least 0.01 mm larger than the diameter of the steel cable 6.

[0113] The second connector 3 is also mounted inside the housing 1, near the rear end of the housing 1 relative to the first connector 2. The head end of the second connector 3 is provided with a main lumen 301, which is connected to the rear end of the first connector 2 via a Luer connection. The first thread hole 202, the second thread hole 203, and the center hole 204 of the first connector 2 are all connected to the main lumen 301. The rear end of the second connector 3 is provided with a first lumen 302, a second lumen 303, and a third lumen 304, which are connected to the main lumen 301.

[0114] One end of the first pulling assembly 4 is connected to the first lumen 302, and the other end extends to the outside of the housing 1. The first pulling assembly 4 is used to pull a pull line of the valve clamp. One end of the second pulling assembly 5 is connected to the second lumen 303, and the other end extends to the outside of the housing 1. The first pulling assembly 4 is used to pull another pull line of the valve clamp. The steel cable 6 passes through the first countersunk hole 201, the center hole 204, and the third lumen 304 in sequence. To facilitate the insertion of the steel cable 6, the third lumen 304, the main lumen 301, the center hole 204, and the first countersunk hole 201 can be coaxial. At least a portion of the pull rod assembly 7 is inserted into the housing 1, and one end of the steel cable 6 is connected to the pull rod assembly 7. The pull rod assembly 7 is used to pull the steel cable 6 and drive the steel cable 6 to rotate.

[0115] In this embodiment, a water injection tube 8 is provided on the side wall of the first connector 2. One end of the water injection tube 8 extends outside the housing 1 and defines a water injection channel 801 that communicates with the first and second linear holes 202, 203, and the center hole 204. During preoperative venting, saline, heparinized saline, or other saline solution can be Luer-connected to the water injection tube 8 and flushed through the water injection channel 801 to the handle and delivery catheter.

[0116] In this embodiment, the third lumen 304 is coaxial with the central hole 204. The first lumen 302 and the second lumen 303 are located on either side of the third lumen 304. The first lumen 302 and the second lumen 303 are symmetrical about the axis of the third lumen 304. The first lumen 302 and the second lumen 303 are arranged in a V-shape, with an angle of approximately 60 degrees between them.

[0117] In this embodiment, the first pulling assembly 4 and the second pulling assembly 5 are composed of the same parts, and the first pulling assembly 4 and the second pulling assembly 5 are symmetrical about the central axis of the housing 1. Figure 11b and Figure 14 As shown, the pulling assembly includes a wire tube 13 , a rotating member 14 and a pulling member 15 .

[0118] The wire tube 13 is provided with a second countersunk hole 1301, which is a blind hole with an open end. A terminal tube 1302 is provided on the wire tube 13, located near the rear end of the wire tube 13. Terminal tube 1302 is provided with a socket 13021 that communicates with the second countersunk hole 1301. The end of terminal tube 1302, away from second countersunk hole 1301, extends outside the housing 1. A third countersunk hole 1401 is provided at one end of the rotating member 14, which has a clearance fit with terminal tube 1302. A receiving groove 1402 is provided at the other end of the rotating member 14, which is connected to the third countersunk hole 1401 via a connecting hole 1403. Terminal tube 1302 is inserted into third countersunk hole 1401. Manually applying a rotational force to the rotating member 14 causes it to rotate about the axis of terminal tube 1302. The puller 15 includes a pulling head 1501 and a winding post 1502. The winding post 1502 is sequentially inserted into the connecting hole 1403 and the insertion hole 13021, and the pulling head 1501 is inserted into the receiving groove 1402. Preferably, a portion of the pulling head 1501 protrudes from the rotating member 14 to facilitate the doctor's removal of the pulling head 1501. The wire tube 13 of the first pulling assembly 4 is connected to the second connector 3, and the second counterbore 1301 of the first pulling assembly 4 is connected to the first lumen 302. The wire tube 13 of the second pulling assembly 5 is connected to the second connector 3, and the second counterbore 1301 of the second pulling assembly 5 is connected to the second lumen 303.

[0119] During use, one of the pull wires is sequentially passed through the first countersunk hole 201, the first wire hole 202, the main cavity 301, the first cavity 302, and the second countersunk hole 1301, and is ultimately fixed to the corresponding winding post 1502; another pull wire is sequentially passed through the first countersunk hole 201, the second wire hole 203, the main cavity 301, the second cavity 303, and the second countersunk hole 1301, and is ultimately fixed to the other winding post 1502; when the rotating member 14 is rotated, the pull wire is wound around the winding post 1502, thus achieving the effect of pulling the pull wire. In this embodiment, each pull wire has its own independent threading channel, and the pull wires do not affect each other, so the handle is easier to thread the pull wires, and the pull wires will not get tangled during use.

[0120] In order to improve the sealing effect of the rotating part 14, a sealing ring 16 is embedded on the inner wall of the connecting hole 1403. After the winding column 1502 on the pulling part 15 is inserted into the connecting hole 1403, the sealing ring 16 is tightly attached to the outer surface of the winding column 1502, thereby preventing liquid from leaking from the gap between the winding column 1502 and the connecting hole 1403.

[0121] See also Figure 13 As shown, a flange 13022 is provided at one end of the terminal tube 1302 away from the second counterbore 1301, and an annular groove 1404 matching the flange 13022 is provided in the third counterbore 1401, and the flange 13022 is clamped in the annular groove 1404. By clamping the flange 13022 in the annular groove 1404, the rotating member 14 can be prevented from falling off the terminal tube 1302.

[0122] The portion of the puller 15 inserted into the receiving groove 1402 can be a non-spherical or non-cylindrical shape, such as a prism, to ensure that the puller 15 can rotate synchronously with the rotating member 14. The portion of the puller 15 inserted into the receiving groove 1402 is similar in shape to the receiving groove 1402, but the receiving groove 1402 needs to be slightly larger than the portion of the puller 15 inserted into the receiving groove 1402. In this embodiment, the receiving groove 1402 and the pulling head 1501 are both hexagonal prisms.

[0123] See also Figure 12 As shown, the rear end of the housing 1 is provided with a rear slot 18. The pull rod assembly 7 includes a central rod 704 and a knob 705. The central rod 704 is provided with a cable hole 7041. One end of the central rod 704 is inserted into the housing 1 and connected to the rear end of the second connector 3. One end of the cable 6 is fixed in the cable hole 7041. The knob 705 is connected to the rear end of the central rod 704 and can be rotated to pull the central rod 704 toward the rear end or to drive the central rod 704 to rotate. The knob 705 is embedded in the rear slot 18, which prevents accidental contact with the knob 705 during transportation, ensuring that the valve clip will not easily fall off or move during transportation.

[0124] See also Figure 18 As shown, the tail end of the center rod 704 is provided with a disc portion 7042, the diameter of the disc portion 7042 is larger than the diameter of the center rod 704, and a pit 70421 is provided at one end of the disc portion 7042 adjacent to the first joint 2; the knob 705 includes an end cover portion 7051, a ring body portion 7052, an inner edge portion 7053 and a boss portion 7054, the end cover portion 7051 is detachably connected to the tail end of the ring body portion 7052, and the inner edge portion 7053 is arranged along the ring body portion 7052. Extending radially inward, the inner edge portion 7053 has a rod hole 70531 at its center, and the boss portion 7054 is connected to one end of the inner edge portion 7053 adjacent to the end cover portion 7051; the disc portion 7042 is located in the space formed by the end cover portion 7051, the annular portion 7052, and the inner edge portion 7053, and the center rod 704 passes through the rod hole 70531. The boss portion 7054 can be inserted into the recess 70421 and prevent the knob 705 from rotating relative to the center rod 704. Figure 19b As shown, the outer periphery of the boss portion 7054 is a regular hexagon, and the center of the boss portion 7054 is a circular hole suitable for the center rod 704 to pass through; Figure 18 As shown, the recess 70421 is a regular hexagonal groove that matches the boss portion 7054. When the boss portion 7054 is inserted into the recess 70421, the knob 705 rotates synchronously with the center rod 704; when the boss portion 7054 is removed from the recess 70421, the knob 705 is rotated again, but the rotation will not drive the center rod 704 to rotate.

[0125] In a further improvement, the pull rod assembly 7 further includes an elastic member 706. The elastic member 706 is disposed within the space defined by the end cap 7051, the annular body 7052, and the inner edge 7053, and drives the boss 7054 out of the recess 70421. The elastic member 706 can be a tension spring. As shown in FIG17 , the tension spring is mounted between the end cap 7051 and the disc 7042, with one end connected to the end cap 7051 and the other end connected to the disc 7042. The elastic member 706 can also be a compression spring, mounted between the disc 7042 and the inner edge 7053, which drives the boss 7054 out of the recess 70421.

[0126] The working process of this embodiment is as follows:

[0127] Before valve repair, the left and right pulling pieces 15 are fully inserted into the rotating piece 14 so that the pulling head 1501 is completely against the accommodating groove 1402; the rotating piece 14 is rotated to wind the pull wire around the winding column 1502. During this process, the head end of the pull wire will slowly move in the direction away from the heart, so that the first and second clamp arms of the valve clamp are fully pulled open to a posture flush with the steel cable 6, so as to facilitate the valve clamp to be installed in the delivery catheter; then a syringe or injection pump is used to connect the water injection pipe 8, and physiological saline / heparin saline is injected into the first connector 2 to flush the delivery catheter and the valve clamp, and then the valve clamp and the delivery catheter are sent into the bending sheath along the loader.

[0128] During valve repair, when the head end of the delivery catheter reaches the valve position, the rotating part 14 on one side of the first clamp arm is rotated (which can be flexibly rotated according to the required angle of the valve clamp) so that the first clamp arm opens to the required angle to facilitate observation and approach to the leaflet; after the valve clamp is opened to a certain angle and approaches the leaflet, the pulling parts 15 on both sides are quickly pulled out until they are completely disengaged from the rotating part 14, so that the leaflet is quickly clamped between the first and second clamp arms; after observing that the valve clamp is closed well, pull the knob 705 until the boss part 7054 is inserted into the pit 70421, rotate and retract the knob 705 until the head end of the steel cable 6 is completely separated from the valve clamp; finally, withdraw the delivery catheter and wire.

[0129] This embodiment has the following advantages:

[0130] 1. The design of the knob 705 and the latch-like control wire device combines the advantages of slow rotation and fast release of the latch-like device, allowing doctors to quickly operate the valve clip.

[0131] 2. Improvements to the cable 6 system include the introduction of an elastic member 706, a boss 7054, and a recess 70421, ensuring that the valve clip will not easily fall off or shift during transportation. Furthermore, when controlling the cable 6 to release the valve clip, there is no need to push the clip forward, making it more suitable for devices with a threaded connection between the cable 6 and the valve clip.

[0132] 3. The water injection pipe 8 is integrated into the handle instead of an extension pipe, which reduces the size and complexity of the handle;

[0133] 4. While meeting the requirements of smooth sliding operation, accuracy and quick responsiveness, it solves the problem of difficulty in operation caused by the large handle size of Mitra Clip instruments invented by Abbott.

[0134] So far, the various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0135] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A valve clip wire control handle, characterized in that: include: shell; A first joint is arranged in the housing, a first countersunk hole is arranged at the head end of the first joint, and a first wire hole, a second wire hole and a center hole are arranged at the tail end of the first joint which are connected with the first countersunk hole; A second connector is disposed in the housing, a main cavity is disposed at the head end of the second connector, the head end of the second connector is connected to the tail end of the first connector, and a first cavity, a second cavity and a third cavity are disposed at the tail end of the second connector, which are connected to the main cavity; A first pulling component, one end of which is connected to the first cavity and the other end of which extends to the outside of the shell, the first pulling component is used to pull a pull line of the valve clip; A second pulling assembly, one end of which is connected to the second cavity and the other end of which extends to the outside of the shell, wherein the first pulling assembly is used to pull another pulling line of the valve clip; A steel cable, the steel cable sequentially passing through the first countersunk hole, the central hole, and the third cavity; as well as A pull rod assembly, at least part of which is inserted into the housing, one end of the steel cable is connected to the pull rod assembly, and the pull rod assembly is used to pull the steel cable and drive the steel cable to rotate.

2. The valve clip wire control handle according to claim 1, characterized in that: A water injection pipe is provided on the side wall of the first joint, one end of the water injection pipe extends to the outside of the shell and is provided with a water injection channel connected with the first wire hole, the second wire hole and the center hole.

3. The valve clip wire control handle according to claim 1, characterized in that: The third cavity is coaxial with the central hole, and the first cavity and the second cavity are respectively located on two sides of the third cavity.

4. The valve clip wire control handle according to any one of claims 1 to 3, characterized in that: The pulling assembly comprises: A guide rod, one end of which is connected to the first joint, and the guide rod is provided with a third wire hole passing through both ends thereof; A slide tube, the slide tube comprising a first section and a second section connected to each other, the first section being provided with a slide cavity, the guide rod being inserted into the slide cavity and being able to slide relative to the slide tube, the second section being provided with an outer cavity communicating with the slide cavity; and A plug, the plug blocks an end of the outer cavity away from the sliding cavity and is used to fix one end of the pull wire; Wherein, the third wire hole in the first pulling component is communicated with the first cavity, and the third wire hole in the second pulling component is communicated with the second cavity.

5. The valve clip wire control handle according to claim 4, characterized in that: A first slide, a second slide, a first tail end gear slot, a second tail end gear slot and an intermediate gear slot are provided on the outer wall of the shell. The second section of the first pulling component extends from the first slide to the outside of the shell, and the second section of the second pulling component extends from the second slide to the outside of the shell. The second section of the first pulling component can slide in the first slide along a direction parallel to the axis of the first section, and the second section of the second pulling component can slide in the second slide along a direction parallel to the axis of the first section. The first tail end gear slot is connected to the tail section of the first slide, the second tail end gear slot is connected to the tail section of the second slide, and the intermediate gear slot is connected to the middle section of the first slide.

6. The valve clip wire control handle according to any one of claims 1, 2, 3, and 5, characterized in that: A first partition is provided in the housing, a buckle groove and a first through hole are provided on the first partition, the first through hole passes through the first partition, and the buckle groove is located at one end of the first partition adjacent to the first joint; the pull rod assembly includes: A rod head, the rod head is located in the first through hole, a buckle portion is provided at the head end of the rod head, the buckle portion extends outward along the radial direction of the rod head, and the buckle portion is at least partially inserted into the buckle groove to prevent the rod head from rotating; A shaft, the head end of the shaft is connected to the tail end of the shaft, and the tail end of the shaft extends out of the housing; the steel cable is connected to the shaft and / or the shaft.

7. The valve clip wire control handle according to claim 6, characterized in that: The rod head is provided with a third through hole running through its head end and tail end, the side wall of the rod head is provided with a slot connected to the third through hole, the head end of the rod body is provided with an elastic part, the elastic part is provided with a protrusion extending radially outward along the rod body, the elastic part can be elastically deformed along the radial direction of the rod body, the elastic part is inserted into the third through hole and the protrusion is inserted into the slot, and the steel cable is inserted into the third through hole.

8. The valve clip wire control handle according to claim 7, characterized in that: The rod body is provided with a steel cable hole extending from the head end of the rod body to the tail end of the rod body. After the head end of the rod body is inserted into the third through hole, the steel cable hole is communicated with the third through hole. A threaded hole is provided on the side wall of the rod body, and the threaded hole is communicated with the third through hole. The steel cable passes through the third through hole and the steel cable hole, and a top screw for pressing the steel cable is provided in the threaded hole.

9. The valve clip wire control handle according to claim 8, characterized in that: The rod body is provided with a second groove which is in communication with the steel cable hole, and the second groove is filled with glue to fix the steel cable to the rod body.

10. The valve clip wire control handle according to claim 7, characterized in that: A first groove communicating with the third through hole is provided on the side wall of the rod head, and glue is filled in the first groove to fix the steel cable and the rod head in connection.

11. The valve clip wire control handle according to claim 7, characterized in that: It also includes a compression spring. A second partition is also provided in the outer shell. The second partition is located between the first partition and the head end of the rod shaft. There is a distance between the second partition and the first partition. A second through hole suitable for the rod shaft to pass through is provided on the second partition. One end of the compression spring is connected to the rod head, and the other end of the compression spring is connected to the second partition.

12. The valve clip wire control handle according to any one of claims 1 to 3, characterized in that: The pulling assembly comprises: A wire tube, wherein the wire tube is provided with a second countersunk hole, the wire tube is provided with a terminal tube, the terminal tube is provided with a plug hole connected to the second countersunk hole, and one end of the terminal tube away from the second countersunk hole extends outside the housing; A rotating member, wherein one end of the rotating member is provided with a third countersunk hole, and the other end of the rotating member is provided with a receiving groove, wherein the receiving groove is connected to the third countersunk hole via a connecting hole, and the terminal tube is inserted into the third countersunk hole, and the rotating member can rotate around the axis of the terminal tube; A pulling member, the pulling member comprising a pulling head and a winding column, the winding column is sequentially inserted into the connecting hole and the plug hole, the pulling head is inserted into the receiving groove, and the pulling member rotates synchronously with the rotating member; The wire tube of the first pulling assembly is connected to the second joint, and the second countersunk hole of the first pulling assembly is communicated with the first cavity; the wire tube of the second pulling assembly is connected to the second joint, and the second countersunk hole of the second pulling assembly is communicated with the second cavity.

13. The valve clip wire control handle according to claim 12, characterized in that: A sealing ring is embedded on the inner wall of the connecting hole.

14. The valve clip wire control handle according to claim 12, characterized in that: A flange is provided at one end of the terminal tube away from the second counterbore, and an annular groove matching the flange is provided in the third counterbore, and the flange is clamped in the annular groove.

15. The valve clip wire control handle according to claim 12, characterized in that: The receiving groove and the drawing head are both in the shape of a hexagonal column.

16. The valve clip wire control handle according to any one of claims 1-3 and 13-15, characterized in that: The tail end of the shell is provided with a tail groove, and the pull rod assembly comprises: A center rod, wherein a steel cable hole is provided on the center rod, one end of the center rod is inserted into the outer shell and connected to the second joint, and one end of the steel cable is fixed in the steel cable hole; A knob is connected to the tail end of the central rod.

17. The valve clip wire control handle according to claim 16, characterized in that: A disc portion is provided at the tail end of the center rod, the diameter of the disc portion is larger than the diameter of the center rod, and a pit is provided at one end of the disc portion adjacent to the first joint; the knob comprises an end cover portion, an annular body portion, an inner edge portion and a boss portion, the end cover portion is connected to the tail end of the annular body portion, the inner edge portion extends radially inwardly along the annular body portion, a rod hole is provided at the center of the inner edge portion, and the boss portion is connected to one end of the inner edge portion adjacent to the end cover portion; the disc portion is located in a space formed by the end cover portion, the annular body portion and the inner edge portion, the center rod passes through the rod hole, and the boss portion can be inserted into the pit and prevent the knob from rotating relative to the center rod.

18. The valve clip wire control handle according to claim 17, characterized in that: The pull rod assembly further comprises an elastic member, which is arranged in a space formed by the end cover portion, the annular body portion and the inner edge portion and drives the boss portion to be pulled out of the recess.

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