Connection mechanism and guy device

Abstract

The application relates to a connecting mechanism and a pull wire device. The connecting mechanism comprises a connecting assembly capable of being connected with a pull rod of the pull wire device and a clamping assembly connected with the connecting assembly, wherein the clamping assembly comprises a first shell and a second shell, the first shell and the second shell each have a clamping end away from the connecting assembly, the clamping ends of the first shell and the second shell can jointly clamp a connector of a blood pump, at least one of the first shell and the second shell has a pressing end and a rotating part, the pressing end is away from the clamping end, the rotating part is located between the pressing end and the clamping end, and at least one of the first shell and the second shell is rotationally connected with the connecting assembly through the rotating part, wherein by pressing the pressing end, one end of the first shell and the second shell away from the clamping end can be made close, and the clamping end of the first shell and the clamping end of the second shell can be separated. The connecting mechanism of the application can realize the separation of the connecting mechanism and the connector by pressing, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a connecting mechanism and a pull wire device. BACKGROUND

[0002] After the blood pump is implanted in the body, the connector on the blood pump needs to be pulled out of the body by the pull wire device to be electrically connected with the external controller. After the connector is pulled out of the body, the pull wire device is separated from the connector. However, the pull wire device of the related art is complicated to operate, which affects the progress of the operation. SUMMARY

[0003] Therefore, the present application provides a connecting mechanism and a pull wire device which are convenient to operate.

[0004] In a first aspect, the present application provides a connecting mechanism, comprising a connecting assembly capable of being connected with a pull rod of a pull wire device and a clamping assembly connected with the connecting assembly, wherein: the clamping assembly comprises a first shell and a second shell, the first shell and the second shell each have a clamping end away from the connecting assembly, the clamping ends of the first shell and the second shell can jointly clamp a connector of a blood pump, at least one of the first shell and the second shell has a pressing end and a rotating part, the pressing end is away from the clamping end, the rotating part is located between the pressing end and the clamping end, and at least one of the first shell and the second shell is rotationally connected with the connecting assembly through the rotating part, wherein by pressing the pressing end, the end of the first shell and the second shell away from the clamping end can be brought close to each other, and the clamping ends of the first shell and the second shell can be separated.

[0005] In an embodiment of the present application, the clamping assembly further comprises an elastic member, the elastic member is fixedly connected with the connecting assembly, the elastic member elastically abuts against the pressing end, and the elastic member can provide an elastic support force to the pressing end, wherein: the elastic support force can make the end of the first shell and the second shell away from the clamping end have a tendency to move away from each other, and make the clamping ends of the first shell and the second shell have a tendency to move close to each other; or the elastic support force can make the end of the first shell away from the clamping end have a tendency to move away from the second shell, and make the clamping end of the first shell have a tendency to move close to the clamping end of the second shell.

[0006] In an embodiment of the present application, the connecting assembly is provided with a limiting cavity; the pressing end is provided with a limiting part extending away from the clamping end, the limiting part is accommodated in the limiting cavity, the limiting part can abut against the cavity wall of the limiting cavity, and when the limiting part abuts against the cavity wall of the limiting cavity, the clamping end of the first shell and the clamping end of the second shell have a minimum distance.

[0007] In an embodiment of the present application, the connecting assembly comprises a connecting barrel and a connecting structure connected with the connecting barrel, the connecting barrel has a first connecting end connected with the pull rod and a second connecting end away from the first connecting end, and the connecting structure is connected with the second connecting end;

[0008] At least one of the first shell and the second shell is rotationally connected with the connecting structure through the rotating part, and the elastic member is fixedly connected with the connecting structure;

[0009] The second connecting end of the connecting barrel is provided with a limiting wall, and the limiting wall surrounds the central axis of the connecting barrel to form the limiting cavity;

[0010] An abutting groove is arranged on the outer wall of the limiting part, the limiting wall can be accommodated in the abutting groove, and when the limiting wall is accommodated in the abutting groove, the groove wall of the abutting groove is fitted with the inner surface of the limiting wall, and the outer surface of the limiting wall is coplanar with the outer surface of the clamping assembly.

[0011] In an embodiment of the present application, the elastic member comprises a fixed segment and an elastic segment connected with the fixed segment, the fixed segment is fixedly connected with the connecting assembly, the elastic segment is located between the connecting assembly and the inner wall surface of the pressing end, and the elastic segment is bent relative to the fixed segment; one end of the elastic segment away from the fixed segment abuts against the pressing end.

[0012] In an embodiment of the present application, the connecting mechanism further comprises at least one of the following features:

[0013] The elastic segment extends from the fixed segment towards the pressing end to be inclined relative to the inner wall surface of the pressing end;

[0014] The included angle between the elastic segment and the fixed segment is obtuse;

[0015] The included angle between the elastic segment and the inner wall surface of the pressing end is acute;

[0016] The inner wall surface of the pressing end is provided with a limiting groove, and at least part of the elastic segment is accommodated in the limiting groove;

[0017] The elastic segment is a spring structure.

[0018] In an embodiment of the present application, the connecting assembly comprises a connecting barrel and a connecting structure connected with the connecting barrel, the connecting structure comprises a first fastener and a second fastener, the first fastener is arranged through the connecting barrel, the second fastener is connected with the first fastener, and the second fastener is at least partially located between the first shell and the second shell; the connecting mechanism further comprises a rotating shaft connected with the second fastener, the rotating shaft is arranged through the rotating part and rotationally connected with at least one of the first shell and the second shell.

[0019] In an embodiment of the present application, the connecting mechanism further comprises a sealing member, the sealing member is sleeved on the second fastener, and the sealing member is located between the first shell and the second shell, and the sealing member can be sealingly connected with the end of the connector.

[0020] And / or, the clamping assembly further comprises an elastic member, the elastic member is clamped and fixed between the first fastener and the second fastener, the elastic member elastically abuts against the pressing end, and the elastic member can provide an elastic supporting force to the pressing end, so that the pressing end has a tendency to be outwardly opened relative to the connecting structure.

[0021] In an embodiment of the present application, at least one of the inner wall surfaces of the first shell and the second shell is provided with a support platform, the connecting mechanism further comprises a sealing member, the sealing member has a barrel portion with an open end and a closed end, and a flange surrounding the opening end of the barrel portion, the barrel portion has a bottom opposite to the opening end; the second fastener is partially accommodated in the barrel portion and abuts against the bottom of the barrel portion, and the position of the flange corresponds to the position of the support platform; when the clamping ends of the first shell and the second shell jointly clamp the connector, the closed end of the barrel portion is accommodated in the plug-in interface of the connector, and the flange is clamped between the support platform and the connector to seal the plug-in interface of the connector.

[0022] In a second aspect, the present application provides a stay wire device, comprising a connecting mechanism as any of the above technical features and a pull rod, the pull rod is detachably connected with the connecting assembly.

[0023] After adopting the above technical solutions, the present application has at least the following technical effects:

[0024] The connecting mechanism and the pull wire device, the connecting mechanism comprises a connecting assembly and a clamping assembly connected with the connecting assembly, the first shell and the second shell of the clamping assembly are provided with clamping ends away from the connecting assembly and capable of clamping the connector of the blood pump together, at least one of the first shell and the second shell is provided with a pressing end away from the clamping end and a rotating part between the pressing end and the clamping end, and at least one of the first shell and the second shell is rotatably connected with the connecting assembly through the rotating part, so that when the operator presses the pressing end, the end away from the clamping end of the first shell and the second shell can be close, and the clamping end of the first shell and the clamping end of the second shell can be separated. That is, the connecting mechanism and the connector can be separated by pressing, and the separation of the connecting mechanism and the connector is more convenient, which speeds up the surgical process. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The connecting mechanism provided in the application is shown in the structure schematic view in one perspective.

[0026] Figure 2 For Figure 1 The sectional view along the A-A direction.

[0027] Figure 3 For Figure 1 The connecting mechanism shown in the structure schematic view in another perspective.

[0028] Figure 4 For Figure 3 The sectional view along the B-B direction.

[0029] Figure 5 For Figure 1 The structure schematic view of the second shell relative to the first shell is shown.

[0030] Figure 6 For Figure 1 The exploded view of the connecting mechanism in one perspective is shown.

[0031] Figure 7 For Figure 1 The exploded view of the connecting mechanism in another perspective is shown.

[0032] Figure 8 For Figure 1 The structure schematic view of the first shell is shown.

[0033] Figure 9 For Figure 1 The structure schematic view of the second shell is shown.

[0034] Figure 10 For Figure 4 The structure schematic view of the elastic member is shown.

[0035] Figure 11for Figure 4 The diagram shows the structure of the second fastener.

[0036] Figure 12 for Figure 2 The diagram shows the structure of the seal.

[0037] Figure 13 This is a schematic diagram of the connector structure in one embodiment of this application.

[0038] Figure 14 Assembly drawing of the pull rod and connecting mechanism of the pull wire device provided in this application.

[0039] Figure 15 for Figure 14 The diagram shows the assembly of the pull rod and the cutter head of the wire pulling device.

[0040] Wherein: 1. Pulling device; 10. Connecting mechanism; 100. Connecting assembly; 101. Connecting cylinder; 102. Connecting structure; 110. First connecting end; 111. First connecting hole; 120. Second connecting end; 121. Second connecting hole; 130. Limiting cavity; 140. Central axis; 160. Limiting wall; 200. Clamping assembly; 2001. Pressing end; 2002. Clamping end; 2003. Rotating part; 2 004, Limiting part; 2005, Docking groove; 2006, Limiting groove; 2007, Alternating cavity; 2008, Support platform; 201, Engaging part; 202, Receiving cavity; 203, Preset gap; 210, First housing; 211, First pressing end; 212, First clamping end; 213, First limiting part; 2131, First docking groove; 214, First outer peripheral surface; 215, First lug; 2151, First shaft 216. Hole; 217. First inner circumferential surface; 220. First groove; 221. Second housing; 222. Second pressing end; 222. Second clamping end; 223. Second limiting part; 2231. Second mating groove; 224. Second outer circumferential surface; 225. Second lug; 2251. Second shaft hole; 226. Second inner circumferential surface; 227. Second groove; 230. Rotating shaft; 260. Elastic element; 261. Fixed section; 262. 262a, First elastic section; 262b, Second elastic section; 270, Second fastener; 300, First fastener; 400, Seal; 410, Cylindrical part; 420, Flange; 411, Bottom; 412, Mounting hole; 50, Connector; 510, Mating part; 520, Outer shell surface; 530, Insertion interface; 60, Pull rod; 610, Rod part; 620, Connector head; 70, Handle; 80, Cutting head. Detailed Implementation

[0041] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0042] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0044] In the present application, unless otherwise specifically defined and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0046] It should be noted that if an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0047] After the blood pump is implanted in the body, the connector of the blood pump needs to be pulled out of the body by the pull wire device to be electrically connected with the external controller. After the connector of the blood pump is pulled out, the pull wire device is separated from the connector. However, in the related art, the connection mechanism and the connector are connected in a rotating manner, and when the connection mechanism is separated from the connector, the entire connection mechanism needs to be rotated, which is complicated to operate. Moreover, the operator (especially when wearing gloves) is prone to slipping when rotating the connection mechanism, which causes the connection mechanism and the connector to be difficult to separate, thereby affecting the progress of the operation.

[0048] Therefore, the present application provides a connection mechanism for connecting a medical device to pull the medical device to a target position outside or inside the body. Optionally, the connection mechanism can connect the pull rod of the pull wire device and the connector of the blood pump (not shown) to pull the connector out of the body, so that the blood pump is electrically connected with the external controller through the connector. Of course, in other embodiments of the present application, the connection mechanism can also connect other types of surgical devices, components to be implanted or components to be pulled out.

[0049] Referring to Figures 1 to 5 , the present application only takes the connection between the connection mechanism 10 and the connector 50 as an example for description. The connection mechanism 10 is convenient to operate and can facilitate the connection with the connector 50 (such as Figure 13The connection or disconnection of the connection mechanism 10 and the connector 50 is shortened, the time for connecting and disconnecting the connection mechanism 10 and the connector 50 is shortened, and the operation process is accelerated. The connection mechanism and the connector are prevented from rotating and slipping in the form of rotating clamping or threaded connection, and the safety is higher. The specific structure of the connection mechanism 10 in an embodiment is introduced below.

[0050] The structure and principle of the pull wire device are briefly introduced. As shown in Figure 14 The pull wire device 1 includes a pull rod 60, a handle 70, and a connection mechanism 10. The handle 70 is arranged at one end of the pull rod 60, and the other end of the pull rod 60 is detachably connected with the connection mechanism 10.

[0051] Referring to Figure 1 , Figure 2 , Figure 5 and Figure 14 In an embodiment, the connection mechanism 10 includes a connection assembly 100 capable of being connected with the pull rod 60 of the pull wire device 1 and a clamping assembly 200 connected with the connection assembly 100.

[0052] The connection assembly 100 is detachably connected with the pull rod 60. Specifically, the connection assembly 100 is connected with the pull rod 60 through threaded connection. The connection assembly 100 has a first connection end 110 and a second connection end 120 away from the first connection end 110. The first connection end 110 is capable of being connected with the pull rod 60 of the pull wire device 1.

[0053] The clamping assembly 200 is connected to the second connection end 120. The clamping assembly 200 includes a first shell 210 and a second shell 220. The first shell 210 and the second shell 220 each have a clamping end 2002 away from the connection assembly 100. The clamping ends 2002 of the first shell 210 and the second shell 220 are capable of jointly clamping the connector 50 of the blood pump. At least one of the first shell 210 and the second shell 220 has a pressing end 2001 and a rotating part 2003. The pressing end 2001 is away from the clamping end 2002, and the clamping end 2002 is farther away from the first connection end 110 than the pressing end 2001. The rotating part 2003 is located between the pressing end 2001 and the clamping end 2002, and at least one of the first shell 210 and the second shell 220 is rotationally connected with the connection assembly 100 through the rotating part 2003. By pressing the pressing end 2001, the ends of the first shell 210 and the second shell 220 away from the clamping end 2002 can be brought close, and the clamping end 2002 of the first shell 210 and the clamping end 2002 of the second shell 220 can be separated, so that the connector 50 is separated from the connection mechanism 10. Specifically, when the pressing end 2001 rotates from the outside to the inside of the clamping assembly 200, the clamping end 2002 rotates in the opposite direction (i.e., from the inside to the outside of the clamping assembly 200) to the pressing end 2001, and is separated from the connector 50.

[0054] The connection mechanism 10 of this application includes a connection component 100 and a clamping component 200 connected to the connection component 100. The first housing 210 and the second housing 220 of the clamping component 200 each have a clamping end 2002 away from the connection component 100 and capable of jointly clamping the connector 50 of the blood pump. At least one of the first housing 210 and the second housing 220 has a pressing end 2001 away from the clamping end 2002 and a rotating part 2003 located between the pressing end 2001 and the clamping end 2002. At least one of the first housing 210 and the second housing 220 is rotatably connected to the connection component 100 through the rotating part 2003, so that when the operator presses the pressing end 2001, the ends of the first housing 210 and the second housing 220 away from the clamping end 2002 can be brought closer together, and the clamping end 2002 of the first housing 210 and the clamping end 2002 of the second housing 220 can be separated. Compared to the traditional method of separating the connecting mechanism 10 from the connector 50 by rotating the entire connecting mechanism 10, this application allows for separation of the connecting mechanism 10 from the connector 50 simply by pressing, making separation more convenient and accelerating the surgical process. Furthermore, since it eliminates the need for additional rotation of the entire connecting mechanism 10, slippage during rotation is avoided.

[0055] See Figures 1 to 3 , Figure 14 The connecting component 100 is the part that connects the connecting mechanism 10 to the pull rod 60. The connecting component 100 is detachably connected to the pull rod 60 through the first connecting end 110. When it is necessary to pull the connector 50, the connecting component 100 is installed on the pull rod 60 to connect the connecting mechanism 10 to the pull rod 60, and then the pull cable device 1 can be pulled. After pulling, the connecting component 100 can be detached from the pull rod 60. The connecting component 100 and the clamping component 200 can be reliably connected by means of screw fixing, pin fixing, welding, etc., to prevent the connecting component 100 and the clamping component 200 from separating during the pulling of the pull rod 60.

[0056] The connecting assembly 100 includes a connecting cylinder 101 and a connecting structure 102 connected to the connecting cylinder 101. A first connecting end 110 and a second connecting end 120 are the two ends of the connecting cylinder 101 along its axial direction, meaning the connecting cylinder 101 can be detachably connected to the pull rod 60. The connecting structure 102 is connected to the second connecting end 120 and is also connected to the clamping assembly 200. At least one of the first housing 210 and the second housing 220 is rotatably connected to the connecting structure 102 via a rotating part 2003, allowing the first housing 210 and the second housing 220 to rotate relative to each other. In this embodiment, both the first housing 210 and the second housing 220 are rotatably connected to the connecting structure 102 via the rotating part 2003. In other embodiments, either the first housing 210 or the second housing 220 is rotatably connected to the connecting structure 102 via the rotating part 2003.

[0057] In the present embodiment, the axial direction of the connection assembly 100 is the axial direction of the connection barrel 101, which refers to the direction consistent with the extension direction of the central axis 140 of the connection barrel 101; the radial direction of the connection assembly 100 refers to the radius or diameter direction of the circular cross section of the connection barrel 101, and the direction is perpendicular to the axial direction of the connection assembly 100; the circumferential direction of the connection assembly 100 refers to the circumferential direction of the circular cross section of the connection barrel 101.

[0058] The clamping assembly 200 is a component for connecting the connection mechanism 10 and the connector 50. The clamping assembly 200 is detachably connected with the connector 50. Specifically, the connector 50 is installed to the end of the clamping assembly 200 away from the connection barrel 101, facilitating the later pulling of the rod 60 to pull the connector 50 out of the body. After the connector 50 is pulled out of the body, the connector 50 is detached from the end of the clamping assembly 200 away from the connection barrel 101, realizing the separation of the connection mechanism 10 and the connector 50.

[0059] The first shell 210 and the second shell 220 respectively extend along the axial direction of the connection assembly 100. The first shell 210 and the second shell 220 can form an accommodation cavity 202, which can accommodate at least part of the connector 50 of the blood pump, and the cavity wall of the accommodation cavity 202 can be clamped with the connector 50. The first shell 210 and the second shell 220 are semi-cylindrical structures, and after installation, the first shell 210 and the second shell 220 can form a complete cylindrical clamping assembly 200 to clamp with the connector 50.

[0060] Referring to Figure 1 and Figure 2 , the first shell 210 and the second shell 220 are rotatably connected, and exemplarily, the second shell 220 rotates relative to the first shell 210 about the rotation axis O. When the second shell 220 rotates relative to the first shell 210, the second shell 220 can close or open relative to the first shell 210, thereby realizing the clamping or releasing of the connector 50 by the first shell 210 and the second shell 220. In the present embodiment, the first shell 210 and the second shell 220 both rotate about the rotation axis O.

[0061] When the second shell 220 rotates about the rotation axis O to close relative to the first shell 210, the second clamping end 222 closes relative to the first clamping end 212, and the first shell 210 and the second shell 220 can form a complete cylindrical structure. At this time, the first shell 210 and the second shell 220 form a hollow accommodation cavity 202, which can accommodate the connector 50 to fix the connector 50 to the first shell 210 and the second shell 220, realize the clamping of the connector 50 by the clamping assembly 200, and realize the reliable connection of the connector 50 and the connection mechanism 10, facilitating the later pulling of the connector 50.

[0062] In the embodiment, the first shell 210 and the second shell 220 rotate around the rotation axis O. The first shell 210 and the second shell 220 each include a pressing end 2001, a clamping end 2002, and a rotating portion 2003 between the pressing end 2001 and the clamping end 2002. The rotating portion 2003 of the first shell 210 is rotationally connected to the second shell 220 or the second connecting end 120, and the rotating portion 2003 of the second shell 220 is rotationally connected to the first shell 210 or the second connecting end 120, that is, the first shell 210 and the second shell 220 can rotate relative to each other. In one implementation, the first shell 210 rotates around the rotation axis O. The first shell 210 includes a pressing end 2001, a clamping end 2002, and a rotating portion 2003 between the pressing end 2001 and the clamping end 2002, and the second shell 220 can be fixedly connected to the connecting assembly 100. The rotating portion 2003 of the first shell 210 is rotationally connected to the second shell 220 or the second connecting end 120, that is, the second shell 220 rotates relative to the first shell 210. In another implementation, the second shell 220 rotates around the rotation axis O. The second shell 220 includes a pressing end 2001, a clamping end 2002, and a rotating portion 2003 between the pressing end 2001 and the clamping end 2002, and the first shell 210 can be fixedly connected to the connecting assembly 100. The rotating portion 2003 of the second shell 220 is rotationally connected to the first shell 210 or the second connecting end 120, that is, the second shell 220 rotates relative to the first shell 210.

[0063] In the embodiment, the pressing end 2001 includes a first pressing end 211 provided on the first shell 210 and a second pressing end 221 provided on the second shell 220. The clamping end 2002 includes a first clamping end 212 provided on the first shell 210 and a second clamping end 222 provided on the second shell 220. The rotating portion 2003 includes a first rotating portion 2013 provided on the first shell 210 and a second rotating portion 2203 provided on the second shell 220.

[0064] Referring to Figure 1 , Figure 2 and Figure 4 , the part of the first shell 210 close to the connecting barrel 101 is the first pressing end 211, the part of the first shell 210 away from the connecting barrel 101 is the first clamping end 212, the part of the second shell 220 close to the connecting barrel 101 is the second pressing end 221, and the part of the second shell 220 away from the connecting barrel 101 is the second clamping end 222.

[0065] The first pressing end 211 and the second pressing end 221 are located on the side of the rotation axis O close to the connecting barrel 101, and the first pressing end 211 and the second pressing end 221 are arranged opposite in the circumferential direction of the connecting barrel 101. The first clamping end 212 and the second clamping end 222 are located on the side of the rotation axis O away from the connecting barrel 101, and the first clamping end 212 and the second clamping end 222 are arranged opposite in the circumferential direction of the connecting barrel 101. In this embodiment, the second pressing end 221 is pressed to make the second clamping end 222 open relative to the first clamping end 212. Of course, in other embodiments of the application, the first pressing end 211 can also be pressed, or the first pressing end 211 and the second pressing end 221 can be pressed at the same time.

[0066] When the operator presses the second pressing end 221, the second pressing end 221 moves towards the central axis 140 of the connecting barrel 101, so that the second shell 220 rotates relative to the first shell 210 around the rotation axis O, and the second clamping end 222 opens relative to the first clamping end 212. At this time, the end of the connector 50 can be placed in the first shell 210. Then reset the second pressing end 221, the second pressing end 221 moves away from the central axis 140 of the connecting barrel 101, the first pressing end 211 and the second pressing end 221 move away from each other, so that the first clamping end 212 and the second clamping end 222 are closed. At this time, the first clamping end 212 and the second clamping end 222 enclose the accommodation cavity 202, and the connector 50 is accommodated in the accommodation cavity 202, that is, the clamping assembly 200 clamps the connector 50 through the first clamping end 212 and the second clamping end 222, so as to realize the connection between the connection mechanism 10 and the connector 50.

[0067] Referring to Figure 2 , Figure 5 and Figure 14 , when the operator presses the second pressing end 221, the second pressing end 221 can move towards the central axis 140 of the connecting barrel 101, and then the second shell 220 rotates relative to the first shell 210 around the rotation axis O, so that the second clamping end 222 opens relative to the first clamping end 212, the accommodation cavity 202 is opened, the clamping assembly 200 releases the connector 50, and the connector 50 can be removed from between the first shell 210 and the second shell 220.

[0068] Compared with the traditional way of separating the connection mechanism from the connector by rotating the connection mechanism, the connection mechanism 10 of the application can make the second clamping end 222 open relative to the first clamping end 212 by pressing the first pressing end 211 or the second pressing end 221, so that the connection mechanism 10 and the connector 50 are separated more conveniently, and the operation process is accelerated. In addition, since the entire connection mechanism 10 does not need to be rotated additionally, the situation of rotation slipping is avoided.

[0069] Referring to Figure 1 , Figure 2 andFigure 14 In an embodiment, the extending direction of the rotation axis O is perpendicular to the axial direction of the connecting assembly 100, i.e. the rotation axis O extends along the radial direction of the connecting assembly 100, and the first housing 210 and the second housing 220 can rotate around the rotation axis O. In this way, when the second housing 220 rotates relative to the first housing 210, the second clamping end 222 can accurately approach or move away from the first clamping end 212, avoiding interference with the connecting barrel 101, so that the connecting mechanism 10 can accurately connect or separate from the connector 50.

[0070] In an embodiment, the connecting structure 102 includes a first fastener 300, which is arranged through the connecting barrel 101 and extends towards the clamping assembly 200. The first fastener 300 can be installed through the connecting barrel 101 into the clamping assembly 200, improving the reliability of the connection between the connecting barrel 101 and the clamping assembly 200, and avoiding separation of the connecting barrel 101 and the clamping assembly 200 during the pulling of the pull rod 60.

[0071] Optionally, the connecting barrel 101 is arranged in a cylindrical shape. In this way, the outer surface of the connecting barrel 101 is smooth and does not have edges, so that the outer circumferential surface of the connecting barrel 101 will not scratch the human tissue when the pull rod 60 pulls the connector 50 through the connecting mechanism 10, avoiding damage to the human tissue.

[0072] Optionally, one end of the connecting barrel 101 away from the clamping assembly 200 is provided with a first connecting hole 111, and the pull rod 60 is detachably installed into the first connecting hole 111. In this way, the connection of the pull rod 60 and the connecting mechanism 10 can be facilitated. Optionally, the connecting barrel 101 and the pull rod 60 are connected by threads. Of course, in other embodiments of the present application, the connecting barrel 101 and the pull rod 60 can also be connected by clamping or other means, as long as the detachable connection between the connecting barrel 101 and the pull rod 60 can be achieved.

[0073] Optionally, one end of the connecting barrel 101 close to the clamping assembly 200 has a second connecting hole 121, the second connecting hole 121 communicates with the first connecting hole 111, and the diameter of the second connecting hole 121 is smaller than that of the first connecting hole 111. That is, the first connecting hole 111 and the second connecting hole 121 communicate along the axial direction of the connecting barrel 101 and penetrate through the connecting barrel 101. The first fastener 300 is arranged through the second connecting hole 121 and installed into the clamping assembly 200.

[0074] In an embodiment, the first pressing end 211 and the second pressing end 221 have a preset gap 203 in the circumferential direction of the connecting barrel 101. That is, the circumferential end face of the first pressing end 211 and the circumferential end face of the second pressing end 221 are at a distance to form the preset gap 203. The preset gap 203 can provide a movement space when the first pressing end 211 or the second pressing end 221 is pressed, so as to avoid the second pressing end 221 abutting against the first pressing end 211, thereby affecting the rotation of the second housing 220 relative to the first housing 210 about the rotation axis O, facilitating the clamping and releasing of the connector 50 by the clamping assembly 200.

[0075] Referring to Figure 1 、 Figure 2 and Figure 6 In an embodiment, the connecting mechanism 10 further comprises a rotation shaft 230, the rotation shaft 230 is arranged through the rotating part 2003 and rotationally connected with at least one of the first housing 210 and the second housing 220, so that at least one of the first housing 210 and the second housing 220 can rotate about the rotation shaft 230. The central axis of the rotation shaft 230 is the rotation axis O, that is, the rotation shaft 230 is perpendicular to the axial direction of the connecting barrel 101. In the present embodiment, the rotation shaft 230 is arranged through the first housing 210 and the second housing 220. In other embodiments, the rotation shaft 230 is arranged through the first housing 210 or the second housing 220.

[0076] The rotation shaft 230 extends in the radial direction of the connecting assembly 100, and the first housing 210 and the second housing 220 can rotate about the rotation shaft 230. At least one of the first housing 210 and the second housing 220 can rotate about the rotation shaft 230 to close or open the first clamping end 212 and the second clamping end 222, so as to clamp or release the connector 50 by the first clamping end 212 and the second clamping end 222.

[0077] In an embodiment, the rotation shaft 230 is arranged at the middle part of the first housing 210 and the second housing 220, so as to substantially divide the first housing 210 and the second housing 220 in the axial direction of the connecting assembly 100. In this way, when the operator presses the second pressing end 221, the second pressing end 221 can more easily drive the second housing 220 to rotate about the rotation shaft 230, so that the pressing of the second pressing end 221 is more labor-saving, and the operation of the operator is facilitated. Meanwhile, after the first clamping end 212 and the second clamping end 222 enclose the accommodation cavity 202, the accommodation cavity 202 has a certain depth in the axial direction of the connecting barrel 101, so as to improve the reliability of clamping the connector 50.

[0078] Referring to Figure 4 、 Figure 6 and Figure 7In an embodiment, the connecting assembly 100 is provided with a limiting cavity 130. The pressing end 2001 is provided with a limiting portion 2004 extending away from the clamping end 2002. The limiting portion 2004 is accommodated in the limiting cavity 130, and when the first shell 210 and the second shell 220 enclose the accommodating cavity 202, the limiting portion 2004 abuts against the cavity wall 131 of the limiting cavity 130 to limit the movement of the limiting portion 2004 away from the central axis 140 of the connecting barrel 101, thereby avoiding the overstroke movement of the first shell 210 or the second shell 220. When the limiting portion 2004 abuts against the cavity wall 131 of the limiting cavity 130, the clamping end 2002 of the first shell 210 and the clamping end 2002 of the second shell 220 have a minimum distance, so that the first clamping end 212 and the second clamping end 222 remain closed, thereby improving the reliability of clamping.

[0079] The second connecting end 120 of the connecting barrel 101 is provided with a limiting wall 160 surrounding the central axis 140 of the connecting barrel 101 to form the limiting cavity 130.

[0080] The limiting portion 2004 includes a first limiting portion 213 and a second limiting portion 223. The first limiting portion 213 is arranged on the side of the first pressing end 211 away from the first clamping end 212, and the second limiting portion 223 is arranged on the end of the second pressing end 221 away from the second clamping end 222. The first limiting portion 213 and the second limiting portion 223 are oppositely arranged along the circumference of the connecting assembly 100, and both are accommodated in the limiting cavity 130.

[0081] After the connecting barrel 101 is installed on the clamping assembly 200 by the first fastener 300, the first limiting portion 213 and the second limiting portion 223 are located in the limiting cavity 130.

[0082] When the second pressing end 221 is pressed, the second pressing end 221 can drive the second limiting portion 223 to move in the limiting cavity 130 towards the central axis 140 of the connecting barrel 101. After the second pressing end 221 is released, the second pressing end 221 resets, i.e. the second pressing end 221 can drive the second limiting portion 223 to move in the limiting cavity 130 away from the central axis 140 of the connecting barrel 101. When the second limiting portion 223 abuts against the cavity wall 131 of the limiting cavity 130, the cavity wall 131 can block the second limiting portion 223 to limit the movement of the second limiting portion 223 away from the central axis 140 of the connecting barrel 101, thereby avoiding the overstroke movement of the second shell 220, so that the first clamping end 212 and the second clamping end 222 remain closed, thereby improving the reliability of clamping.

[0083] Referring to Figure 4 , Figure 6 , Figure 7 and Figure 14The outer wall of the limiting part 2004 is provided with a butt joint groove 2005, which is recessed from the outer circumferential surface of the second shell 220 towards the central axis 140 of the connecting cylinder 101. The limiting wall 160 can be accommodated in the butt joint groove 2005, and when the limiting wall 160 is accommodated in the butt joint groove 2005, the groove wall of the butt joint groove 2005 is in close contact with the inner surface of the limiting wall 160, and the outer surface of the limiting wall 160 is coplanar with the outer surface of the clamping assembly 200. The inner surface of the limiting wall 160 is the cavity wall 131 of the limiting cavity 130. The outer surface of the limiting wall 160 is coplanar with the outer surface of the clamping assembly 200, so that the outer surface of the clamping assembly 200 and the outer surface of the connecting cylinder 101 form a cylindrical surface, so that there is no edge or protrusion on the outer wall of the connecting mechanism 10, so that when the pull rod 60 pulls the connecting mechanism 10, the connecting mechanism 10 will not scratch the human tissue.

[0084] In the embodiment, the butt joint groove 2005 includes a first butt joint groove 2131 provided on the first limiting part 213 and a second butt joint groove 2231 provided on the second limiting part 223.

[0085] The first shell 210 has a first outer circumferential surface 214, the first limiting part 213 has the first butt joint groove 2131, the first butt joint groove 2131 is recessed from the first outer circumferential surface 214 towards the central axis 140 of the connecting cylinder 101, and can be in abutment with the cavity wall 131 of the limiting cavity 130. When the groove wall of the first butt joint groove 2131 is in abutment with the cavity wall 131 of the limiting cavity 130, the first outer circumferential surface 214 is coplanar with the outer surface of the limiting wall 160.

[0086] In an embodiment, the second shell 220 has a second outer circumferential surface 224, the second limiting part 223 has the second butt joint groove 2231, the second butt joint groove 2231 is recessed from the second outer circumferential surface 224 towards the central axis 140 of the connecting cylinder 101, and can be in abutment with the cavity wall 131 of the limiting cavity 130. When the groove wall of the second butt joint groove 2231 is in close contact with the inner surface of the limiting wall 160, the second outer circumferential surface 224 is coplanar with the outer surface of the limiting wall 160.

[0087] Referring to Figures 7 to 9 The rotating part 2003 has a lug protruding towards the rotating shaft 230, the lug has a shaft hole, and the rotating shaft 230 is arranged through the shaft hole. In an embodiment, the first shell 210 has a first lug 215 protruding towards the second shell 220, the first lug 215 has a first shaft hole 2151, the second shell 220 has a second lug 225 protruding towards the first shell 210, the second lug 225 has a second shaft hole 2251, the first shaft hole 2151 and the second shaft hole 2251 are coaxially arranged, and the rotating shaft 230 is arranged through the first shaft hole 2151 and the second shaft hole 2251.

[0088] The first lug 215 is arranged on the first housing 210 and protrudes towards the second housing 220, and the second lug 225 is arranged on the second housing 220 and protrudes towards the first housing 210. When the first housing 210 and the second housing 220 are mounted, the first lug 215 and the second lug 225 are coaxially arranged through the first shaft hole 2151 and the second shaft hole 2251, and the rotating shaft 230 is rotatably arranged through the first shaft hole 2151 and the second shaft hole 2251. In this way, the first housing 210 can rotate around the rotating shaft 230 through the first shaft hole 2151, and the second housing 220 can also rotate around the rotating shaft 230 through the second shaft hole 2251, so as to realize the closing or opening of the first clamping end 212 and the second clamping end 222.

[0089] Optionally, the first housing 210 has a first inner circumferential surface 216, the second housing 220 has a second inner circumferential surface 226, the first lug 215 is arranged on the first inner circumferential surface 216, and the second lug 225 is arranged on the second inner circumferential surface 226. For example, the first lug 215 is arranged on the end surface of the first housing 210, the second lug 225 is arranged on the second inner circumferential surface 226 of the second housing 220, and the first lug 215 is located outside the second lug 225. Of course, in other embodiments of the present application, the first lug 215 can be arranged on the first inner circumferential surface 216 of the first housing 210, and the second lug 225 can be arranged on the end surface of the second housing 220.

[0090] Referring to Figure 4 , Figure 8 , Figure 9 and Figure 13 , in an embodiment, the inner wall of at least one of the first housing 210 and the second housing 220 has an engaging portion 201, and the outer wall of the connector 50 is provided with a matching portion 510 corresponding to the engaging portion 201. When the second housing 220 is closed relative to the first housing 210, the engaging portion 201 and the matching portion 510 are engaged and matched, so as to realize the stable connection of the connecting mechanism 10 and the connector 50.

[0091] The inner side surface of the first housing 210 is a first inner circumferential surface 216, as shown in Figure 9 , and the inner side surface of the second housing 220 is a second inner circumferential surface 226. Correspondingly, the connector 50 has an outer housing surface 520, as shown in Figure 13 . After the connector 50 is accommodated and fixed in the accommodating cavity 202, the outer housing surface 520 can abut against the first inner circumferential surface 216 and the second inner circumferential surface 226, so as to make the first housing 210 and the second housing 220 clamp the connector 50, thereby improving the reliability of the connection of the connecting mechanism 10 and the connector 50.

[0092] In the embodiment, the first inner circumferential surface 216 and the second inner circumferential surface 226 are provided with the engaging portions 201, and the shell surface 520 is provided with two matching portions 510 corresponding to the two engaging portions 201. Of course, in other embodiments of the present application, the engaging portions 201 can be provided on the first inner circumferential surface 216 or the second inner circumferential surface 226. The shell surface 520 is provided with one matching portion 510 corresponding to the engaging portion 201.

[0093] One of the engaging portion 201 and the matching portion 510 is an engaging protrusion, and the other is an engaging groove matched with the engaging protrusion. In the embodiment, the engaging portion 201 is the engaging protrusion, and the engaging protrusion is protruded from the first inner circumferential surface 216 and the second inner circumferential surface 226. Correspondingly, the matching portion 510 is the engaging groove, and the engaging groove is recessed in the shell surface 520. After the fixed connector 50 is accommodated in the accommodating cavity 202, the engaging protrusion is clamped in the engaging groove. Of course, in other embodiments of the present application, the engaging portion 201 can be the engaging groove recessed in the first inner circumferential surface 216 and the second inner circumferential surface 226, and the matching portion 510 is the engaging protrusion protruded from the shell surface 520.

[0094] In an embodiment, the height of the protrusion of the engaging protrusion is less than or equal to the depth of the recess of the engaging groove. In this way, the engaging protrusion can be accurately clamped in the engaging groove, avoiding that the engaging protrusion is exposed from the engaging groove, so that the shell surface 520 of the connector 50 cannot effectively abut against the first inner circumferential surface 216 and the second inner circumferential surface 226, and the reliability of the connection between the connector 50 and the connecting mechanism 10 is improved.

[0095] Referring to Figure 2 , Figure 4 and Figure 6 In an embodiment, the clamping assembly 200 further comprises a resilient member 260 fixedly connected with the connecting structure 102 of the connecting assembly 100. The resilient member 260 elastically abuts against the pressing end 2001 and can provide an elastic supporting force to the pressing end 2001. The elastic supporting force can make the end of the first housing 210 and the second housing 220 away from the clamping end 2002 have a tendency to move away from each other, and make the clamping end 2002 of the first housing 210 and the second housing 220 have a tendency to move close to each other. Alternatively, the elastic supporting force can make the end of the first housing 210 away from the clamping end 2002 have a tendency to move away from the second housing 220, and make the clamping end 2002 of the first housing 210 have a tendency to move close to the clamping end 2002 of the second housing 220.

[0096] In the embodiment, the elastic member 260 elastically abuts between the first pressing end 211 and the second pressing end 221 to provide the elastic support force for the first clamping end 212 and the second clamping end 222 to be enclosed, that is, the elastic member 260 can provide the elastic support force for the pressing end 2001 to be opened outward relative to the second connecting end 120.

[0097] The elastic member 260 is arranged in the clamping assembly 200 and can provide a certain elastic support force, so that the elastic member 260 elastically abuts between the first pressing end 211 and the second pressing end 221. The elastic member 260 is clamped and fixed to the connecting structure 102, and the end of the elastic member 260 abuts the pressing end 2001. The elastic member 260 can provide an elastic support force for the pressing end 2001, so that the pressing end 2001 has a tendency to open outward relative to the connecting structure 102.

[0098] When the second pressing end 221 is pressed, the pressing force can make the second pressing end 221 overcome the elastic support force of the elastic member 260, so that the second pressing end 221 moves towards the central axis 140 of the connecting barrel 101, so that the second clamping end 222 opens relative to the first clamping end 212. After the second pressing end 221 is released, the pressing force on the second pressing end 221 disappears, and the elastic support force of the elastic member 260 can push the second pressing end 221 to move away from the central axis 140 of the connecting barrel 101, so that the second pressing end 221 is reset, and the second clamping end 222 is closed relative to the first clamping end 212 to clamp the connector 50.

[0099] The elastic member 260 exerts a certain elastic support force on the first pressing end 211 and the second pressing end 221, so that the first pressing end 211 and the second pressing end 221 are away from each other, and the first clamping end 212 and the second clamping end 222 are kept closed, thereby improving the stability of the clamping assembly 200 and the connector 50. When the first pressing end 211 or the second pressing end 221 is accidentally touched, the force of the accidental touch is less than the elastic support force of the elastic member 260. At this time, the elastic member 260 can keep the first pressing end 211 and the second pressing end 221 in the state of not being pressed, that is, the elastic member 260 can keep the first clamping end 212 and the second clamping end 222 in the closed state, thereby improving the stability of the clamping assembly 200.

[0100] Referring to Figure 1 , Figure 2 and Figure 11In an embodiment, the connecting structure 102 further comprises a second fastener 270, the second fastener 270 is at least partially located between the first shell 210 and the second shell 220, and is connected with the first fastener 300, the rotating shaft 230 is connected to the second fastener 270, and the at least partially elastic member 260 is arranged between the first fastener 300 and the second fastener 270. The rotating part 2003 is rotatably mounted to the second fastener 270.

[0101] The second fastener 270 is fixedly connected with the first fastener 300. The rotating shaft 230 is arranged through the second fastener 270, and the rotating shaft 230 is also rotatably connected with the first shell 210 and the second shell 220. In this way, the first fastener 300, the second fastener 270 and the rotating shaft 230 can realize stable connection between the connecting barrel 101 and the first shell 210 and the second shell 220.

[0102] The second fastener 270 is arranged through the elastic member 260, so as to fix the at least partially elastic member 260 between the first fastener 300 and the second fastener 270, so that the position of the elastic member 260 in the accommodating cavity 202 is fixed, and the stability of the elastic member 260 elastically abutting against the first pressing end 211 and the second pressing end 221 is improved. Alternatively, the second fastener 270 is fixed to the first fastener 300 in a threaded connection manner, so as to improve the reliability of the connection between the first fastener 300 and the second fastener 270. Of course, in other embodiments of the present application, the second fastener 270 can also be fixed to the first fastener 300 in a manner of interference fit, buckle connection or the like.

[0103] Referring to Figure 4 , Figure 6 and Figure 10 In an embodiment, the elastic member 260 comprises a fixed segment 261 and an elastic segment 262. The fixed segment 261 is fixedly connected with the connecting assembly 100, and is exemplarily fixedly arranged between the first fastener 300 and the second fastener 270. The elastic segment 262 is connected to the fixed segment 261, and is located between the connecting assembly 100 and the inner wall surface of the pressing end 2001. The elastic segment 262 is bent relative to the fixed segment 261, and one end of the elastic segment 262 away from the fixed segment 261 abuts against the pressing end 2001.

[0104] The elastic segment 262 comprises a first elastic segment 262a and a second elastic segment 262b, which are connected to opposite ends of the fixed segment 261 and are located on the same side of the fixed segment 261. The first elastic segment 262a elastically abuts against the first pressing end 211, and the second elastic segment 262b elastically abuts against the second pressing end 221.

[0105] The elastic section 262 extends from the fixed section 261 towards the pressing end 2001 to be inclined relative to the inner wall surface of the pressing end 2001.

[0106] The fixed section 261 is fixed between the first fastener 300 and the second fastener 270 to fix the elastic member 260 into the clamping assembly 200 and at the end of the receiving cavity 202 facing the connecting barrel 101. In this way, the position of the elastic member 260 in the receiving cavity 202 is fixed, and the stability of the elastic member 260 elastically abutting against the first pressing end 211 and the second pressing end 221 is improved. The first elastic section 262a and the second elastic section 262b are oppositely arranged on the fixed section 261, and the first elastic section 262a is arranged corresponding to the first shell 210 and supports the first pressing end 211, and the second elastic section 262b is arranged corresponding to the second shell 220 and supports the second pressing end 221.

[0107] When the first pressing end 211 is pressed, the pressing force received by the first pressing end 211 can overcome the elastic supporting force of the first elastic section 262a and move towards the central axis 140 of the connecting barrel 101; when the first pressing end 211 is released, the elastic supporting force of the first elastic section 262a makes the first pressing end 211 return (move away from the central axis 140 of the connecting barrel 101). Similarly, when the second pressing end 221 is pressed, the pressing force received by the second pressing end 221 can overcome the elastic supporting force of the second elastic section 262b and move towards the central axis 140 of the connecting barrel 101; when the second pressing end 221 is released, the elastic supporting force of the second elastic section 262b makes the second pressing end 221 return (move away from the central axis 140 of the connecting barrel 101).

[0108] Optionally, the fixed section 261, the first elastic section 262a and the second elastic section 262b are an integral structure. In this way, the structural strength of the elastic member 260 can be improved to stably support the first pressing end 211 and the second pressing end 221, and the manufacturing process can also be simplified. Of course, in other embodiments of the present application, the fixed section 261, the first elastic section 262a and the second elastic section 262b can also be reliably connected by welding, bonding or the like.

[0109] Referring to Figure 4 and Figure 10In an embodiment, the first elastic section 262a and the second elastic section 262b are arranged obliquely to the fixed section 261 and extend away from the central axis 140 of the connecting barrel 101. In the direction from the second connecting end 120 to the first connecting end 110, the distance between the first elastic section 262a and the second elastic section 262b gradually increases, so that the first elastic section 262a can stably elastically abut against the first pressing end 211 and the second elastic section 262b can stably abut against the second pressing end 221, thereby keeping the first clamping end 212 and the second clamping end 222 closed and improving the stability of the connection between the connecting mechanism 10 and the connector 50.

[0110] In an embodiment, the angle between the elastic section 262 and the fixed section 261 is obtuse. The angle between the first elastic section 262a and the fixed section 261 is obtuse, and the first elastic section 262a elastically abuts against the first pressing end 211. The angle between the second elastic section 262b and the fixed section 261 is obtuse, and the second elastic section 262b elastically abuts against the second pressing end 221. The angle between the elastic section 262 and the inner wall surface of the pressing end 2001 is acute. In this way, the first elastic section 262a and the second elastic section 262b are away from each other in the axial direction of the connecting assembly 100, so that the first elastic section 262a can stably elastically abut against the first pressing end 211 and the second elastic section 262b can stably abut against the second pressing end 221, thereby improving the stability of the clamping of the first clamping end 212 and the second clamping end 222 and improving the stability of the connection between the connecting mechanism 10 and the connector 50. Optionally, the angle θ1 between the first elastic section 262a and the fixed section 261 is 95°-150°, and the angle θ2 between the second elastic section 262b and the fixed section 261 is 95°-150°.

[0111] In an embodiment, the elastic section 262 is a spring structure. The first elastic section 262a and the second elastic section 262b are both spring structures. The spring structure is a metal sheet with elastic properties, which stably elastically abuts against the first pressing end 211 and the second pressing end 221. Of course, in other embodiments of the present application, the elastic member 260 can be a torsion spring, and the first elastic section 262a and the second elastic section 262b are torsion arms of the torsion spring.

[0112] Referring to Figures 7 to 10In an embodiment, the inner wall surface of the pressing end 2001 is provided with a limiting groove 2006, and at least part of the elastic section 262 is accommodated in the limiting groove 2006. The limiting groove 2006 includes a first groove 217 arranged on the first pressing end 211, and a second groove 227 arranged on the second pressing end 221. The first groove 217 is recessed on the first inner circumferential surface 216, and at least part of the first elastic section 262a is accommodated in the first groove 217. The second groove 227 is recessed on the second inner circumferential surface 226, and at least part of the second elastic section 262b is accommodated in the second groove 227.

[0113] When the first elastic section 262a elastically abuts against the first pressing end 211, part of the first elastic section 262a is located in the first groove 217, and the first groove 217 can limit the first elastic section 262a, avoiding the first elastic section 262a from slipping along the first inner circumferential surface 216, and further improving the stability of the elastic abutment of the first elastic section 262a against the first pressing end 211.

[0114] When the second elastic section 262b elastically abuts against the second pressing end 221, part of the second elastic section 262b is located in the second groove 227, and the second groove 227 can limit the second elastic section 262b, avoiding the second elastic section 262b from slipping along the second inner circumferential surface 226, and further improving the stability of the elastic abutment of the second elastic section 262b against the second pressing end 221.

[0115] It is worth noting that the structure and number of the first groove 217 and the second groove 227 are not limited in principle, as long as the first groove 217 can limit the first elastic section 262a and the second groove 227 can limit the second elastic section 262b. In the embodiment, the first groove 217 and the second groove 227 are long strip-shaped grooves. Of course, in other embodiments of the present application, the first groove 217 and the second groove 227 can also be circular, elliptical, polygonal, or other regular or irregular shapes.

[0116] For example, the number of the first groove 217 is two, and the two first grooves 217 are symmetrically arranged on the first inner circumferential surface 216, and the first elastic section 262a is located in the two first grooves 217 along the two edges of the circumferential side of the connecting cylinder 101, so as to stably limit the first elastic section 262a. Of course, in other embodiments of the present application, one groove can also accommodate the two edges of the circumferential side of the first elastic section 262a. The number of the second groove 227 is two, and the two second grooves 227 are symmetrically arranged on the second inner circumferential surface 226, and the second elastic section 262b is located in the two second grooves 227 along the two edges of the circumferential side of the connecting cylinder 101, so as to stably limit the second elastic section 262b. Of course, in other embodiments of the present application, one groove can also accommodate the two edges of the circumferential side of the second elastic section 262b.

[0117] Referring to Figure 4 , Figure 7 and Figure 13 In an embodiment, the connecting mechanism 10 further comprises a sealing member 400, which is arranged in the clamping assembly 200 and located at the side of the receiving cavity 202 close to the connecting barrel 101. The sealing member 400 can be sealingly connected with the end of the connector 50.

[0118] The sealing member 400 is sleeved on the second fastener 270, and the sealing member 400 is located between the first housing 210 and the second housing 220. In an embodiment, the side of the sealing member 400 facing the connecting barrel 101 is nested with the side of the second fastener 270 away from the connecting barrel 101. In this way, the sealing member 400 can be fixedly installed on the second fastener 270, so that the position of the sealing member 400 in the clamping assembly 200 is fixed, thereby enabling the sealing member 400 to effectively seal the plug interface 530 of the connector 50.

[0119] When the first clamping end 212 and the second clamping end 222 clamp the connector 50, the end of the connector 50 is received and fixed in the receiving cavity 202, and the shell surface 520 of the connector 50 abuts against the first inner circumferential surface 216 and the second inner circumferential surface 226. At the same time, the sealing member 400 is arranged at the end of the connector 50 and seals the plug interface 530 of the connector 50 to prevent blood from entering the connector 50.

[0120] In the embodiment, the sealing member 400 has a barrel portion 410 and a flange 420. The barrel portion 410 has one end open and the other end closed. The barrel portion 410 has a bottom 411 opposite the open end; the second fastener 270 is partially received in the barrel portion 410 and abuts against the bottom 411 of the barrel portion 410. The flange 420 is arranged around the open end of the barrel portion 410.

[0121] The side of the barrel portion 410 facing the connecting barrel 101 is provided with a mounting hole 412, which is a blind hole, and the end of the second fastener 270 away from the first fastener 300 is received in the mounting hole 412. When the sealing member 400 is fixed to the second fastener 270, the end of the second fastener 270 away from the first fastener 300 can be clamped in the mounting hole 412 of the sealing member 400, so that the installation of the sealing member 400 is more firm and reliable, and the position of the sealing member 400 in the receiving cavity 202 is prevented from shifting, thereby improving the sealing effect of the sealing member 400 on the plug interface 530 of the connector 50.

[0122] In other embodiments, the sealing member 400 can also have other structures, for example, it can be a film, as long as it can be fixed to the second fastener 270 and seal the plug interface 530 of the connector 50.

[0123] Referring toFigure 4 、 Figure 10 、 Figure 13 and Figure 14 The first shell 210 and the second shell 220 further enclose a position-avoiding cavity 2007 located at the inner side of the pressing end 2001. The inner wall surface of at least one of the first shell 210 and the second shell 220 is provided with a support table 2008 located between the position-avoiding cavity 2007 and the accommodation cavity 202.

[0124] The sealing member 400 is arranged on the side of the support table 2008 away from the pressing end 2001, and the position of the support table 2008 corresponds to the position of the flange 420, wherein the correspondence means that the support table 2008 and the flange 420 substantially overlap in the axial direction of the connecting assembly 100, so that the support table 2008 can provide sufficient support force for the flange 420. The support table 2008 supports the sealing member 400, so as to avoid the sealing member 400 from moving in the accommodation cavity 202 when cooperating with the connector 50, and further improves the sealing effect of the sealing member 400 on the plug-in port 530 of the connector 50.

[0125] When the clamping ends 2002 of the first shell 210 and the second shell 220 jointly clamp the connector 50, the closed end of the barrel portion 410 is accommodated in the plug-in port 530 of the connector 50, and the flange 420 is clamped between the support table 2008 and the connector 50 to seal the plug-in port 530 of the connector 50.

[0126] When the connecting assembly 10 of the present application is connected with the connector 50, the second pressing end 221 is pressed, and the second pressing end 221 can overcome the elastic support force of the second elastic section 262b to drive the second shell 220 to rotate around the rotating shaft 230, so that the second clamping end 222 moves away from the first clamping end 212. At this time, the second clamping end 222 is opened relative to the first clamping end 212, the end portion of the connector 50 is placed between the first clamping end 212 and the second clamping end 222, and the cooperation portion 510 of the connector 50 corresponds to the clamping portion 201 of the clamping assembly 200.

[0127] Then, the second pressing end 221 is released, the elastic support force of the second elastic section 262b makes the second pressing end 221 reset, and the second pressing end 221 drives the second clamping end 222 to move towards the first clamping end 212, so that the second clamping end 222 is closed relative to the first clamping end 212, so that the clamping assembly 200 clamps the connector 50. At this time, the first shell 210 and the second shell 220 enclose the accommodation cavity 202, and the clamping portion 201 and the cooperation portion 510 are matched with each other, and the connector 50 is accommodated in the accommodation cavity 202.

[0128] When the accommodation cavity 202 accommodates the connector 50, the first elastic section 262a elastically abuts against the first pressing end 211, and the second elastic section 262b elastically abuts against the second pressing end 221, so that the first clamping end 212 and the second clamping end 222 are kept closed to stably clamp the connector 50. When the accommodation cavity 202 accommodates the connector 50, the sealing member 400 seals the end of the connector 50 to seal the plug interface 530 of the connector 50.

[0129] In this way, the stable connection of the clamping assembly 200 and the connector 50 can be achieved, and the clamping assembly 200 and the connector 50 are prevented from being separated. Since the connecting mechanism 10 has been connected to the pull rod 60 through the connecting assembly 100. When the connecting mechanism 10 is connected to the connector 50 outside the body, the pull rod 60 can pull the connector 50 through the connecting mechanism 10, so that the connector 50 enters the body through the opening of the human tissue and is pulled out of the body through the hole, and the installation operation of the connector 50 is completed.

[0130] When the connector 50 is pulled out of the body, the connecting mechanism 10 needs to be separated from the connector 50 to electrically connect the connector 50 with an external controller. The operator presses the second pressing end 221, and the second pressing end 221 can overcome the elastic support force of the second elastic section 262b to drive the second housing 220 to rotate around the rotating shaft 230, so that the second clamping end 222 moves away from the first clamping end 212. At this time, the second clamping end 222 is opened relative to the first clamping end 212, and the clamping assembly 200 releases the connector 50. The connector 50 can be removed from between the first clamping end 212 and the second clamping end 222, and the separation of the connecting mechanism 10 and the connector 50 is achieved.

[0131] After the separation of the connecting mechanism 10 and the connector 50 is completed, the second pressing end 221 is released, and the second pressing end 221 drives the second clamping end 222 to reset. It should be noted that the pressing of the second pressing end 221 is only taken as an example for description herein, and in other embodiments, the first pressing end 211 can be pressed or the first pressing end 211 and the second pressing end 221 can be pressed, which will not be described herein.

[0132] Referring to Figure 14 and Figure 15 The application further provides a pull wire device 1, which comprises a handle 70, a pull rod 60, and the connecting mechanism 10 according to any one of the above embodiments. The handle 70 is arranged at one end of the pull rod 60, and the connecting assembly 100 of the connecting mechanism 10 is detachably connected to the other end of the pull rod 60. The end of the pull rod 60 away from the connecting assembly 100 is detachably arranged with the handle 70, and the end of the pull rod 60 close to the connecting assembly 100 is detachably arranged with the connecting mechanism 10. In this way, the pull rod 60 can be connected to the connector 50 through the connecting mechanism 10, and then the connector 50 is pulled out of the body.

[0133] In one embodiment, the pull rod 60 comprises a rod portion 610 and a connecting head 620, the connecting head 620 is arranged at the opposite ends of the rod portion 610 with the handle 70, and the connecting head 620 is detachably connected with the connecting assembly 100. The rod portion 610 is made of stainless steel material, and the rod portion 610 can be bent to extend into the body through the perforation of the human tissue and extend out of the body through the opening of the human tissue. The connecting head 620 is arranged at the end of the rod portion 610 away from the handle 70, and the connecting head 620 is detachably connected with the connecting assembly 100, such as threaded connection or clamping connection. The rod portion 610 is detachably connected with the handle 70, such as threaded connection or clamping connection.

[0134] In one embodiment, the pull wire device 1 further comprises a knife head 80, which is detachably arranged at the end of the pull rod 60 away from the handle 70. The knife head 80 is detachably connected with the connecting head 620, and the knife head 80 can form a perforation in the human tissue to facilitate the pull rod 60 to extend into the body through the perforation.

[0135] When the connector 50 needs to be pulled out of the body, the knife head 80 is installed to the connecting head 620. The knife head 80 forms a perforation in the human tissue, and the knife head 80 drives the pull rod 60 to make the pull rod 60 pass through the perforation from the outside of the body into the body and then extend out of the body through the opening of the human tissue. Then, the knife head 80 is detached from the connecting head 620, and the connecting assembly 100 is connected with the connecting head 620 to install the connecting mechanism 10 to the pull rod 60.

[0136] Then, the connecting mechanism 10 is connected with the connector 50 placed outside the body through the opening. After the connection is completed, the pull rod 60 is pulled, and the pull rod 60 drives the connector 50 to move through the connecting mechanism 10, and the connector 50 is pulled from the opening into the body and then pulled out of the body through the perforation. When the installation operation of the connector 50 is completed, the connecting mechanism 10 is separated from the connector 50, and then the connector 50 can be electrically connected with the external controller.

[0137] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application.

Claims

1. A connection mechanism, characterized in that The connecting assembly is connected with the pull rod of the pull wire device, and the clamping assembly is connected with the connecting assembly. The clamping assembly comprises a first housing and a second housing, the first housing and the second housing each have a clamping end away from the connecting assembly, the clamping ends of the first housing and the second housing can jointly clamp the connector of the blood pump, at least one of the first housing and the second housing has a pressing end and a rotating part, the pressing end is away from the clamping end, the rotating part is located between the pressing end and the clamping end, and at least one of the first housing and the second housing is rotationally connected with the connecting assembly through the rotating part, wherein by pressing the pressing end, one end of the first housing and the second housing away from the clamping end can be close to each other, and the clamping end of the first housing and the clamping end of the second housing can be separated. The clamping assembly further comprises an elastic member, the connecting assembly is provided with a limiting cavity; the pressing end is provided with a limiting part extending away from the clamping end, the limiting part is accommodated in the limiting cavity, the limiting part can abut against the cavity wall of the limiting cavity, the connecting assembly comprises a connecting barrel and a connecting structure connected with the connecting barrel, the connecting barrel has a first connecting end connected with the pull rod and a second connecting end away from the first connecting end, and the connecting structure is connected with the second connecting end; At least one of the first housing and the second housing is rotationally connected with the connecting structure through the rotating part, and the elastic member is fixedly connected with the connecting structure; the second connecting end of the connecting barrel is provided with a limiting wall, the limiting wall surrounds the central axis of the connecting barrel to form the limiting cavity; the outer wall of the limiting part is provided with a butt joint groove, the limiting wall can be accommodated in the butt joint groove, and when the limiting wall is accommodated in the butt joint groove, the groove wall of the butt joint groove is fitted with the inner surface of the limiting wall, and the outer surface of the limiting wall is coplanar with the outer surface of the clamping assembly.

2. The connection mechanism of claim 1, wherein, The elastic member is fixedly connected with the connecting assembly, the elastic member elastically abuts against the pressing end, and the elastic member can provide an elastic supporting force for the pressing end, wherein the elastic supporting force can make one end of the first housing and the second housing away from the clamping end have a tendency to move away from each other, and make the clamping ends of the first housing and the second housing have a tendency to move close to each other; or the elastic supporting force can make one end of the first housing away from the clamping end have a tendency to move away from the second housing, and make the clamping end of the first housing have a tendency to move close to the clamping end of the second housing.

3. The connection mechanism of claim 2, wherein, When the limiting part abuts against the cavity wall of the limiting cavity, the clamping end of the first housing and the clamping end of the second housing have a minimum distance.

4. The connection mechanism of claim 1, wherein The elastic member comprises a fixed segment and an elastic segment connected with the fixed segment, the fixed segment is fixedly connected with the connecting assembly, the elastic segment is located between the connecting assembly and the inner wall surface of the pressing end, and the elastic segment is bent relative to the fixed segment; one end of the elastic segment away from the fixed segment abuts against the pressing end.

5. The connection mechanism of claim 4, wherein, The connecting mechanism further comprises at least one of the following features: The elastic segment extends from the fixed segment towards the pressing end to be inclined relative to the inner wall surface of the pressing end; The included angle between the elastic segment and the fixed segment is obtuse; The included angle between the elastic segment and the inner wall surface of the pressing end is acute; The inner wall surface of the pressing end is provided with a limiting groove, and at least part of the elastic segment is accommodated in the limiting groove; The elastic segment is in the form of a spring piece.

6. The attachment mechanism of claim 1, wherein, The connecting assembly comprises a connecting barrel and a connecting structure connected with the connecting barrel, the connecting structure comprises a first fastener and a second fastener, the first fastener is arranged in the connecting barrel, the second fastener is connected with the first fastener, and the second fastener is at least partially located between the first shell and the second shell; the connecting mechanism further comprises a rotating shaft connected with the second fastener, the rotating shaft is arranged in the rotating part and rotationally connected with at least one of the first shell and the second shell.

7. The connection mechanism of claim 6, wherein, The connecting mechanism further comprises a sealing member, the sealing member is sleeved on the second fastener, and the sealing member is located between the first shell and the second shell, and the sealing member can be sealingly connected with the end of the connector; And / or, the clamping assembly further comprises an elastic member, the elastic member is clamped and fixed between the first fastener and the second fastener, the elastic member elastically abuts against the pressing end, the elastic member can provide an elastic supporting force for the pressing end, so that the pressing end has a tendency to be opened outward relative to the connecting structure.

8. The connection mechanism of claim 6, wherein, The inner wall surface of at least one of the first shell and the second shell is provided with a supporting table, the connecting mechanism further comprises a sealing member, the sealing member has a barrel portion with one end open and one end closed, and a flange surrounding the opening end of the barrel portion, the barrel portion has a bottom opposite to the opening; the second fastener is partially accommodated in the barrel portion and abuts against the bottom of the barrel portion, and the position of the flange corresponds to the position of the supporting table; when the clamping ends of the first shell and the second shell jointly clamp the connector, the closed end of the barrel portion is accommodated in the plug-in interface of the connector, and the flange is clamped between the supporting table and the connector to seal the plug-in interface of the connector.

9. A pull wire device, characterized by The connecting mechanism comprises a pull rod and a connecting mechanism as claimed in any one of claims 1 to 8, and the pull rod is detachably connected with the connecting assembly.

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