Connection device, tubular and delivery system

Abstract

The application provides a connecting device, a tubular member and a delivery system. The connecting device comprises a housing, a moving mechanism and a reset mechanism. The moving mechanism is movably connected with the housing. At least one of the housing and the moving mechanism is configured to be connected with a reinforcing wire of the tubular member. The moving mechanism and the housing are both connected with the reset mechanism. The moving mechanism is capable of moving relative to the housing in a first direction under the drive of the reinforcing wire and is capable of moving relative to the housing in a second direction under the drive of the reset mechanism. The first direction is opposite to the second direction. The connecting device, the tubular member and the delivery system provided by the application can make the tubular member have good bending performance.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a connecting device, tubular component, and delivery system. Background Technology

[0002] Current interventional device delivery systems, especially valve delivery systems, mostly require loading the relevant medical devices, such as prosthetic valves or vascular stents, into the delivery device before surgery. Due to the tortuous nature of tubular pathways within the human body, the tubular components of the delivery device need to possess good flexibility to ensure the distal end of the device reaches the predetermined position within the body for interventional surgery. However, the structural design of the tubular components in related technologies is often inadequate, resulting in insufficient flexibility and limiting their application in interventional procedures. Summary of the Invention

[0003] The present invention provides a connecting device, a tubular component, and a conveying system, which are designed to give the tubular component good bending performance.

[0004] This invention provides a connection device, comprising:

[0005] case;

[0006] A movable mechanism is movably connected to the housing, wherein at least one of the housing and the movable mechanism is configured to be connected to the reinforcing wire of the tubular member;

[0007] A reset mechanism, wherein both the movable mechanism and the housing are connected to the reset mechanism;

[0008] The movable mechanism is capable of moving relative to the housing in a first direction under the drive of the reinforcing wire, and is also capable of moving relative to the housing in a second direction under the drive of the reset mechanism, wherein the first direction is opposite to the second direction.

[0009] This invention also provides a tubular component, comprising:

[0010] tubular body;

[0011] Reinforcing wires are threaded through the tubular body; and

[0012] As described above, in the connecting device, the proximal end of the reinforcing wire is connected to the connecting device.

[0013] This invention also provides a conveying system, comprising:

[0014] Sheath; and

[0015] A sheath core, which passes through the sheath tube, and at least one of the sheath core and the sheath tube includes a tubular member as described above.

[0016] The connecting device, tubular component, and conveying system provided in this embodiment of the invention, when the connecting device is applied to the tubular component, enable the movable mechanism to move relative to the shell in a first direction under the drive of the reinforcing wire, and to move relative to the shell in a second direction under the drive of the reset mechanism. Therefore, when the tubular body of the tubular component bends, a section of the reinforcing wire located inside the bend can extend out of the tubular body, and the reset mechanism can drive the movable mechanism to move in the second direction so that the reinforcing wire can remain taut; a section of the reinforcing wire located outside the bend can enter the tubular body, and the reinforcing wire can drive the movable mechanism to move in the first direction, thereby enabling the tubular component including the reinforcing wire and the tubular body to have good bending performance.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the disclosure of the embodiments of the present invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a partial cross-sectional view of a conveying system provided in an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a conveying system provided in an embodiment of the present invention;

[0021] Figure 3 This is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0023] Figure 5(A) is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0024] Figure 5(B) is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0025] Figure 6 This is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a conveying system provided in an embodiment of the present invention;

[0027] Figure 8(A) is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0028] Figure 8(B) is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0029] Figure 8(C) is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention;

[0030] Figure 9 This is a partial structural schematic diagram of a conveying system provided in an embodiment of the present invention, showing some tubular components;

[0031] Figure 10 This is a partial structural schematic diagram of a tubular component provided in an embodiment of the present invention;

[0032] Figure 11 This is a partial structural schematic diagram of a connecting device provided in an embodiment of the present invention;

[0033] Figure 12 This is a partial structural schematic diagram of a tubular component provided in an embodiment of the present invention;

[0034] Figure 13 This is a partial structural schematic diagram of a connecting device provided in an embodiment of the present invention;

[0035] Figure 14 This is a schematic diagram of the structure of the second locking member provided in an embodiment of the present invention;

[0036] Figure 15 This is a schematic diagram of the structure of a sliding member provided in an embodiment of the present invention;

[0037] Figure 16 This is a partial structural schematic diagram of a tubular component provided in an embodiment of the present invention;

[0038] Figure 17 This is a partial structural schematic diagram of a tubular component provided in an embodiment of the present invention;

[0039] Figure 18 This is a schematic diagram of the structure of a moving component provided in an embodiment of the present invention;

[0040] Figure 19 This is a partial structural schematic diagram of a tubular component provided in an embodiment of the present invention;

[0041] Figure 20 This is a partial cross-sectional view of a tubular component provided in an embodiment of the present invention, showing the housing.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1000. Conveying system; 1001. Sheath; 1002. Sheath core; 1003. Assembly parts; 1004. Handle mechanism; 1005. Tubular component;

[0044] 100. Connecting device;

[0045] 10. Housing; 11. Guide rail; 12. Guide groove; 13. Guide section;

[0046] 20. Movable mechanism; 21. Movable component; 211. Sliding element; 2111. Sliding part; 2112. Wire fixing part; 2113. First threading part; 2114. Wire winding part; 2115. Second threading part; 2116. Hollow hole; 212. Rotating element; 2121. Second locking surface; 213. Wire winding element; 22. Moving wheel assembly; 221. Connecting element; 222. Moving wheel;

[0047] 30. Reset mechanism; 31. Elastic structure; 311. First elastic element; 312. Second elastic element; 32. Deformation adjustment structure; 321. Moving element; 3211. Moving body; 3212. Fixing nut; 322. Limiting part;

[0048] 40. Locking mechanism; 41. Control component; 42. Locking assembly; 421. First locking element; 4211. First locking surface; 422. Transmission component; 4221. Conical surface; 423. Second locking element; 4231. Hollow channel; 4232. Conical wall; 4233. Wedge-shaped body; 50. Operating part;

[0049] 200, Tubular body; 201, First channel; 202, Second channel; 203, Inner side of the bend; 204, Outer side of the bend; 300, Reinforcing filament; 301, First reinforcing filament; 302, Second reinforcing filament; 303, First segment;

[0050] 2000, Interventional devices. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0054] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0055] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0056] Understandably, in the field of interventional medical devices, "distal" is defined as the end furthest from the operator during surgery, and "proximal" is defined as the end closest to the operator during surgery. "Axial" refers to the direction parallel to the line connecting the center of the distal and proximal ends of the medical device, and "radial" refers to the direction perpendicular to the aforementioned axial direction.

[0057] In interventional procedures, a delivery system is typically used to deliver interventional devices to a predetermined location within the animal's body, followed by release to achieve the therapeutic purpose. Exemplarily, interventional devices may include at least one of the following: prosthetic valves, vascular stents, etc. Animals may include: humans, monkeys, pigs, dogs, cattle, horses, or sheep, etc. The following explanation uses a human as an example, but is not limited thereto.

[0058] Please see Figure 1This invention provides a delivery system 1000 for delivering an interventional instrument 2000 to a preset position within an animal's body.

[0059] Please see Figure 1 In some embodiments, the delivery system 1000 includes a sheath 1001 and a sheath core 1002, with the sheath core 1002 passing through the sheath 1001. At least one of the sheath core 1002 and the sheath 1001 includes a tubular member 1005 according to any embodiment of the present invention (see [link to documentation]). Figure 2 For example, the sheath core 1002 includes a tubular member 1005 according to any embodiment of the present invention, and the distal end of the reinforcing filament 300 is connected to the distal end of the tubular body 200. As another example, the sheath tube 1001 includes a tubular member 1005 according to any embodiment of the present invention; and as yet another example, the sheath core 1002 and the sheath tube 1001 each include a tubular member 1005 according to any embodiment of the present invention.

[0060] Please see Figure 1 In some embodiments, the delivery system 1000 further includes a fitting 1003 located at the distal end of the reinforcing wire 300, which can be connected to the interventional device 2000.

[0061] Please see Figure 2 In some embodiments, the delivery system 1000 further includes a handle mechanism 1004, the proximal end of the sheath 1001 being connected to the handle mechanism 1004, and the sheath 1001 being capable of reciprocating in the axial direction of the sheath core 1002. When the interventional device 2000 is connected to the fitting 1003, the handle mechanism 1004 can be driven, causing the handle mechanism 1004 to move the sheath 1001 toward the interventional device 2000, thereby compressing at least a portion of the interventional device 2000 and retracting it into the sheath 1001 (hereinafter referred to as "sheathing").

[0062] Please see Figure 3 This invention provides a tubular component 1005, which can be used in a delivery system 1000 or in the tubular structure of other medical devices. The following explanation uses the tubular component 1005 in a delivery system 1000 as an example, but this is not intended to be limiting.

[0063] Please see Figure 3 In some embodiments, the tubular member 1005 includes a connecting device 100, a tubular body 200, and a reinforcing wire 300. The connecting device 100 is used for connection to the proximal end of the reinforcing wire 300; the reinforcing wire 300 is configured to pass through the tubular body 200.

[0064] In some embodiments, the distal end of the reinforcing wire 300 is connected to the distal end of the tubular body 200, and the proximal end of the reinforcing wire 300 is connected to the connecting device 100. Exemplarily, the assembly 1003 is connected to the tubular body 200, and the connection method includes at least one of the following: adhesive bonding, heat fusion bonding, etc. The distal end of the reinforcing wire 300 is connected to the assembly 1003, and the connection method includes at least one of the following: welding, adhesive bonding, etc. In other embodiments, the assembly 1003 may be omitted, and the distal end of the reinforcing wire 300 is fixedly connected to the tubular body 200.

[0065] Please see Figure 4 In some embodiments, the tubular body 200 is formed with a first channel 201 and at least one second channel 202, the second channel 202 being used for the reinforcement filament 300 to pass through.

[0066] For example, the first channel 201 is used for the passage of guide wires or other components.

[0067] Understandably, the number of second channels 202 and reinforcing wires 300 can be set according to actual needs, such as one, two, three, four, or more. For example, the number of second channels 202 corresponds to the number of reinforcing wires 300. For example, the number of second channels 202 is equal to the number of reinforcing wires 300, with each reinforcing wire 300 corresponding to one second channel 202.

[0068] Please see Figure 4 In some embodiments, when there are multiple second channels 202, the multiple second channels 202 are arranged at circumferential intervals along the first channel 201 to effectively improve the tensile and compressive strength of the tubular member 1005. For example, the multiple second channels 202 are arranged at equal intervals circumferentially along the first channel 201 to ensure that the tubular member 1005 has good tensile and compressive strength when bent in different directions.

[0069] Referring to Figure 5(A), it can be understood that the tubular body 200 of the tubular member 1005 has an inner bending side 203 and an outer bending side 204 when bent, the outer bending side 204 of the tubular body 200 is stretched in the bending direction; the inner bending side 203 of the tubular body 200 is compressed in the bending direction.

[0070] Please refer to Figure 5(A). For example, when the tubular body 200 is bent, with the axis h of the tubular body 200 as a reference, the inner side 203 of the bend is the part that is compressed on one side of the axis h, and the outer side 204 of the bend is the side opposite to the inner side 203 of the bend.

[0071] Referring to Figure 5(A), the reinforcing filament 300 located on the inner curved side 203 of the tubular body 200, exemplarily exhibits a tendency to shorten. Referring to Figure 5(B), the reinforcing filament 300 located on the outer curved side 204 of the tubular body 200, exemplarily exhibits a tendency to elongate. Due to the good tensile and compressive strength of the reinforcing filament 300, it is difficult to stretch and compress. If the reinforcing filament 300 is fixedly connected to the tubular body 200, it is difficult for the reinforcing filament 300 to move relative to the tubular body 200. When the tubular member 1005 bends, the reinforcing filament 300 will misalign and separate from the tubular body 200, causing the tubular member 1005 to twist, making it difficult to bend according to actual needs in practical applications. In any embodiment of the present invention, the reinforcing filament 300 of the tubular member 1005 can be movably connected to the second channel 202 to ensure that the tubular member 1005 has good bending performance. For example, a section of the reinforcing wire 300 located outside the second channel 202 can extend into the second channel 202, or a section of the reinforcing wire 300 located inside the second channel 202 can extend outside the second channel 202, so that the tubular member 1005 can have good bending performance.

[0072] For example, the tubular body 200 of the tubular member 1005 can be made of any suitable material, such as a polymer material. The reinforcing filament 300 can be made of any suitable reinforcing material, such as a metal wire. For example, the tensile strength of the tubular body 200 is less than that of the reinforcing filament 300.

[0073] Please see Figure 6 In one embodiment, the connecting device 100 includes a housing 10, a movable mechanism 20, and a reset mechanism 30. The movable mechanism 20 is movably connected to the housing 10. At least one of the housing 10 and the movable mechanism 20 is configured to be connected to the reinforcing wire 300 of the tubular member 1005. Both the movable mechanism 20 and the housing 10 are connected to the reset mechanism 30. The movable mechanism 20 is capable of moving relative to the housing 10 in a first direction under the influence of the reinforcing wire 300, and is also capable of moving relative to the housing 10 in a second direction under the influence of the reset mechanism 30. The first direction and the second direction are opposite.

[0074] In the connecting device 100 of the above embodiment, since the movable mechanism 20 can move relative to the housing 10 in a first direction under the drive of the reinforcing wire 300, and can move relative to the housing 10 in a second direction under the drive of the reset mechanism 30, when the tubular body 200 of the tubular member 1005 bends, a section of the reinforcing wire 300 located on the inner side 203 of the bend of the tubular body 200 can extend out from the tubular body 200. The reset mechanism 30 can drive the movable mechanism 20 to move in the second direction, so that the reinforcing wire 300 can remain taut, thereby ensuring... When the tubular component 1005 enters the animal's body, the reinforcing filament 300 can flexibly extend into or out of the tubular body 200 as needed; a section of the reinforcing filament 300 located on the curved outer side 204 of the tubular body 200 can extend into the tubular body 200, and the reinforcing filament 300 can drive the movable mechanism 20 to move in the first direction, thereby making the tubular component 1005, which includes the reinforcing filament 300 and the tubular body 200, have good bending performance, and the tubular component 1005 can more easily shuttle through the tubes in the animal's body.

[0075] In some embodiments, due to the tortuous nature of the tubing within an animal's body, when the delivery system 1000 delivers the interventional device 2000 to a preset position within the animal's body, at least a portion of the tubing 200 (e.g., the portion of the tubing 200 near the distal end) can switch from a first state to a second state, or from a second state to a first state, as needed, to better adapt to the tubing within the animal's body, thereby smoothly delivering the delivery system 1000 to the preset position; the degree of curvature of at least a portion of the tubing 200 in the first state is less than the degree of curvature in the second state.

[0076] In some embodiments, the first state is a straight tube state, and the second state is a curved state. Exemplarily, the tubular body 200 is in a straight tube state before entering the animal's body; when the tubular body 200 enters the animal's body, at least a portion of the tubular body 200 can switch from a straight tube state to a curved state, or vice versa, as needed. It is understood that the curved state can include one or more, and is not limited thereto. When there are multiple curved states, at least a portion of the tubular body 200 has different degrees of curvature in different curved states.

[0077] Please see Figure 7 In some embodiments, at least a portion of the tubular body 200 in the first state, such as Figure 7 As shown by the dashed line, at least part of the tubular body 200 in the second state is as follows: Figure 7 As shown by the solid line in the image.

[0078] Please refer to Figure 8(A), in conjunction with... Figure 6In some embodiments, the tubular member 1005 includes at least two reinforcing wires 300, which include a first reinforcing wire 301 and a second reinforcing wire 302. The first reinforcing wire 301 and the second reinforcing wire 302 are each provided with a corresponding movable mechanism 20.

[0079] Please refer to Figure 8(A), where, by way of example, the first reinforcing wire 301 and the second reinforcing wire 302 are arranged opposite each other.

[0080] For example, the number of reinforcing filaments 300 includes four, with the four reinforcing filaments 300 spaced apart, wherein two reinforcing filaments 300 are arranged opposite each other, and the other two reinforcing filaments 300 are arranged opposite each other.

[0081] Referring to Figure 8(B), in some embodiments, when at least a portion of the tubular body 200 switches from the first state to the second state, if the first reinforcing wire 301 is located on the outer side 204 of the bend of the tubular body 200 and the second reinforcing wire 302 is located on the inner side 203 of the bend of the tubular body 200, a section of the first reinforcing wire 301 located outside the tubular body 200 can extend into the tubular body 200; the first reinforcing wire 301 can drive the corresponding movable mechanism 20 to move along the first direction to ensure that the first reinforcing wire 301 located outside the tubular body 200 can partially extend into the tubular body 200 as needed. A section of the second reinforcing wire 302 located inside the tubular body 200 can extend out of the tubular body 200, and the movable mechanism 20 corresponding to the second reinforcing wire 302 can move along the second direction under the drive of the reset mechanism 30 to keep the second reinforcing wire 302 taut. For example, the structure of the tubular member 1005 with at least a portion of the tubular body 200 in the second state is shown in Figure 8(B). When at least part of the tubular body 200 switches from the second state to the first state, a section of the first reinforcing wire 301 located inside the tubular body 200 can extend outside the tubular body 200, and the movable mechanism 20 corresponding to the first reinforcing wire 301 can move along the second direction under the drive of the reset mechanism 30, so that the first reinforcing wire 301 remains taut; a section of the second reinforcing wire 302 located outside the tubular body 200 can extend into the tubular body 200, and the second reinforcing wire 302 can drive the corresponding movable mechanism 20 to move along the first direction, so as to ensure that the second reinforcing wire 302 located outside the tubular body 200 can partially extend into the tubular body 200 as needed.

[0082] Referring to Figure 8(C), and in conjunction with Figure 8(A), when at least a portion of the tubular body 200 switches from the first state to the second state, if the first reinforcing wire 301 is located on the inner side 203 of the bend of the tubular body 200, and the second reinforcing wire 302 is located on the outer side 204 of the bend of the tubular body 200, a section of the first reinforcing wire 301 located inside the tubular body 200 can extend outside the tubular body 200, and the movable mechanism 20 corresponding to the first reinforcing wire 301 can move along the second direction under the drive of the reset mechanism 30, so that the first reinforcing wire 301 remains taut; a section of the second reinforcing wire 302 located outside the tubular body 200 can extend into the tubular body 200, and the second reinforcing wire 302 can drive the corresponding movable mechanism 20 to move along the first direction, so as to ensure that the second reinforcing wire 302 located outside the tubular body 200 can partially extend into the tubular body 200 as needed. For example, the structure of the tubular member 1005 with at least a portion of the tubular body 200 in the second state is shown in Figure 8(C). When at least part of the tubular body 200 switches from the second state to the first state, a section of the first reinforcing wire 301 located outside the tubular body 200 can extend into the tubular body 200. The first reinforcing wire 301 can drive the corresponding movable mechanism 20 to move along the first direction, so as to ensure that the first reinforcing wire 301 located outside the tubular body 200 can extend into the tubular body 200 as needed. A section of the second reinforcing wire 302 located inside the tubular body 200 can extend out of the tubular body 200. The movable mechanism 20 corresponding to the second reinforcing wire 302 can move along the second direction under the drive of the reset mechanism 30, so that the second reinforcing wire 302 remains taut.

[0083] For example, the housing 10 is connected to the handle mechanism 1004. For example, the tubular body 200 passes through the handle mechanism 1004; the proximal end of the tubular body 200 is connected to the housing 10, and the connection method between the two includes at least one of the following: adhesive connection, heat fusion connection, snap-fit ​​connection, screw locking connection, etc.

[0084] Please see Figure 9 , combined Figure 6 In some embodiments, the movable mechanism 20 includes a slider 211, which is slidably connected to the housing 10. The slider 211 can slide from the proximal end to the distal end under the action of the reinforcing wire 300, and can slide from the distal end to the proximal end under the action of the reset mechanism 30. Thus, the movable mechanism 20 has a simple structure and a simple movement mode, and the tubular member 1005 has good bending performance.

[0085] For example, the first direction is from the proximal end to the distal end, and the second direction is from the distal end to the proximal end.

[0086] Please see Figure 9In some embodiments, the housing 10 is provided with a guide rail 11, and the slider 211 is slidably connected to the guide rail 11. The guide rail 11 can guide the movement of the slider 211 and enable the slider 211 to move more smoothly.

[0087] Please see Figure 9 In some embodiments, the reset mechanism 30 includes a first elastic element 311, with its two ends connected to the sliding element 211 and the housing 10, respectively. When a section of the reinforcing wire 300 located outside the tubular body 200 extends into the tubular body 200, the reinforcing wire 300 can drive the sliding element 211 to slide from the proximal end to the distal end, and the first elastic element 311 can undergo elastic deformation under the action of the sliding element 211. When a section of the reinforcing wire 300 located inside the tubular body 200 extends outside the tubular body 200, the sliding element 211 can slide from the distal end to the proximal end under the action of the elastic restoring force of the first elastic element 311, and at least a portion of the reinforcing wire 300 can follow the movement of the sliding element 211, thereby keeping the reinforcing wire 300 taut.

[0088] For example, the extension / retraction direction of the first elastic element 311 is parallel to the first direction. For example, the first elastic element 311 includes at least one of the following: a tension spring, a compression spring, etc.

[0089] Please see Figure 10 In some embodiments, the reset mechanism 30 includes a second elastic element 312. The movable mechanism 20 can rotate along a first direction under the drive of the reinforcing wire 300. The second elastic element 312 can undergo elastic deformation when the movable mechanism 20 rotates along the first direction. The movable mechanism 20 can rotate along a second direction under the elastic restoring force of the second elastic element 312. Exemplarily, the second elastic element 312 includes a torsion spring or a clockwork spring, etc. The provision of the second elastic element 312 not only enables sensitive reset but also eliminates the need for axial displacement, which helps to reduce the size of the connecting device 100 and facilitates operation by doctors.

[0090] In other embodiments, the reset mechanism 30 may not be limited to an elastic reset structure, and may include, for example, two magnetically attracted magnetic components.

[0091] Please see Figure 10 In some embodiments, the movable mechanism 20 can rotate in a first direction under the drive of the reinforcing wire 300, so as to allow a section of the reinforcing wire 300 located outside the tubular body 200 to extend into the tubular body 200 when at least part of the tubular body 200 is bent; the movable mechanism 20 can rotate in a second direction under the drive of the second elastic member 312, so that the reinforcing wire 300 can still remain taut when a section of the reinforcing wire 300 located inside the tubular body 200 extends out of the tubular body 200, thereby ensuring that the tubular member 1005 has good bending performance.

[0092] For example, the movable mechanism 20 is rotatable about a rotation axis that is perpendicular to the axial direction of the tubular member 1005 or the housing 10. For example, the rotation axis of the movable mechanism 20 is perpendicular to the axial direction of the tubular body 200 in the first state.

[0093] Please see Figure 10 In some embodiments, the active mechanism 20 includes a rotating member 212 and a winding member 213. The winding member 213 is used to wind a portion of the reinforcing wire 300. The winding member 213 is connected to the rotating member 212 and can be rotatably connected to the housing 10. One end of the reset mechanism 30 is connected to the winding member 213, and the other end of the reset mechanism 30 is connected to the housing 10. The winding member 213 can rotate in a first direction under the drive of the reinforcing wire 300, so that a portion of the reinforcing wire 300 is released outward from the winding member 213, thereby allowing a section of the reinforcing wire 300 outside the tubular body 200 to extend into the tubular body 200 when at least part of the tubular body 200 is bent; the winding member 213 can rotate in a second direction under the drive of the reset mechanism 30, so that a portion of the reinforcing wire 300 is wound around the winding member 213, thereby allowing the reinforcing wire 300 to remain taut even when a section of the reinforcing wire 300 inside the tubular body 200 extends outward from the tubular body 200. Thus, the tubular body 1005 can be flexibly bent according to actual needs, exhibiting good bending performance.

[0094] Please see Figure 10 For example, the reinforcing wire 300 includes a first segment 303 and a second segment (not shown). The first segment 303 is at least partially wound around the winding member 213. The second segment is connected to the first segment 303 and is used to pass through the tubular body 200. The first segment 303 is more flexible than the second segment, so that when the winding member 213 releases part of the first segment 303 outward or winds part of the first segment 303 onto the winding member 213, the force exerted on the reinforcing wire 300 or the reset mechanism 30 on the winding member 213 can be minimized. At least part of the first segment 303 can be released more smoothly from or wound around the winding member 213, thereby making it easier for part of the reinforcing wire 300 to extend out of or into the tubular body 200 when the tubular body 200 is bent.

[0095] Understandably, due to limitations in blood vessel diameter, the diameter of the tubular body 200 of the delivery system 1000 (such as the sheath 1001 or sheath core 1002) needs to be minimized as much as possible. However, as the diameter of the tubular body 200 decreases, it becomes difficult to insert the interventional device 2000 into the sheath. During insertion, the tubular body 200 is subjected to tension or compression (e.g., the sheath core 1002 is under tension, and the sheath 1001 is under compression). The tubular body 200 must withstand corresponding pressure or tension. Therefore, it is necessary to ensure that the tubular body 200 has good tensile and compressive strength when inserting the interventional device 2000. In related technologies, to improve the tensile and compressive strength of the tubular body 200, a reinforcing wire 300 is inserted through the tubular body 200 and fixedly connected to the tubular body 200 by means of heat fusion or other methods. However, due to the good tensile and compressive properties of the reinforcing wire 300, it is difficult to stretch or compress. When the tubular body 200, which is fixedly connected to the reinforcing wire 300, delivers the interventional instrument 2000, the added reinforcing wire 300 will affect the bending performance of the tubular body 200. For interventional procedures with complex paths, the reinforcing wire 300 can easily cause some difficulties in bending the tubular body 200 during the delivery of the interventional instrument 2000. Moreover, when the tubular body 200 is bent on the two sides where the reinforcing wire 300 is provided, the reinforcing wire 300 will exert a large resistance on the tubular body 200. Forcibly bending the tubular body 200 may cause the reinforcing wire 300 to misalign and separate from the tubular body 200, and cause the tubular body 200 to twist. Therefore, the tubular body 200, which is fixedly connected to the reinforcing wire 300, can only be bent on the two sides where the reinforcing wire 300 is not provided, thus limiting the application of the tubular component 1005.

[0096] Understandably, for a structure in which the reinforcing wire 300 and the tubular body 200 are fixedly connected as one unit, if the wire diameter of the reinforcing wire 300 is reduced in order to improve the bending performance of the tubular body 200, the tensile performance of the structure in which the reinforcing wire 300 and the tubular body 200 are fixedly connected as one unit will be poor.

[0097] In any embodiment of the present invention, the connecting device 100 has a reinforcing wire 300 passing through the tubular body 200. The reinforcing wire 300 can move relative to the tubular body 200 according to actual needs. Therefore, the tubular member 1005 has good bending performance. The tubular body 200 and the tubular member 1005 can be bent in the direction of the two sides through which the reinforcing wire 300 passes, and also in the direction of the two sides where the reinforcing wire 300 does not pass.

[0098] Please see Figure 10In some embodiments, the connecting device 100 further includes a locking mechanism 40, which is movable to lock or unlock the active mechanism 20; when the active mechanism 20 is unlocked, the active mechanism 20 can move relative to the housing 10 in a first direction under the drive of the reinforcing wire 300, and can move relative to the housing 10 in a second direction under the drive of the reset mechanism 30.

[0099] In this embodiment, the connecting device 100 has a locking mechanism 40 that can move to lock or unlock the movable mechanism 20. When the movable mechanism 20 is unlocked, it can move relative to the housing 10 in a first direction under the drive of the reinforcing wire 300, and can move relative to the housing 10 in a second direction under the drive of the reset mechanism 30. Therefore, in scenarios where the tubular member 1005 needs to have good tensile and compressive strength (such as in the scenario where the interventional device 2000 is inserted into the sheath), the locking mechanism 40 can move to lock the movable mechanism 20, thereby giving the tubular member 1005 good tensile and compressive strength. In scenarios where the tubular member 1005 needs to have good bending performance, the locking mechanism 40 can move to unlock the movable mechanism 20, thereby giving the tubular member 1005 good bending performance. Therefore, the tubular member 1005, including the aforementioned connecting device 100, has good tensile and compressive strength when the locking mechanism 40 locks the movable mechanism 20; and good bending performance when the locking mechanism 40 unlocks the movable mechanism 20. In practical applications, the movable mechanism 20 can be locked or unlocked according to actual needs, thereby enabling the tubular member 1005 to selectively possess good tensile (or compressive) strength and bending performance.

[0100] Understandably, during insertion, the interventional device 2000 needs to be compressed, resulting in radial compression and axial tension. The sheath 1001 experiences an outward expanding force radially and pressure from the interventional device 2000. The sheath core 1002 must withstand the tensile force from the interventional device 2000, thereby retracting the interventional device 2000 into the sheath 1001. Exemplarily, the sheath core 1002 includes a tubular member 1005 according to any embodiment of the present invention, so that the sheath core 1002 has good tensile strength when the interventional device 2000 is inserted. Exemplarily, the sheath 1001 includes a tubular member 1005 according to any embodiment of the present invention, so that the sheath 1001 has good compressive strength when the interventional device 2000 is inserted.

[0101] For example, when the movable mechanism 20 is unlocked, during the process of the tubular body 200 of the tubular member 1005 switching from the first state to the second state, a section of the reinforcing wire 300 located on the inner side 203 of the bend of the tubular body 200 can extend out from the tubular body 200, and the reset mechanism 30 can drive the movable mechanism 20 to move in the second direction, so that even if a section of the reinforcing wire 300 extends out from the tubular body 200, the reinforcing wire 300 can remain taut; a section of the reinforcing wire 300 located on the outer side 204 of the bend of the tubular body 200 can extend into the tubular body 200, and the reinforcing wire 300 can drive the movable mechanism 20 to move in the first direction. When the movable mechanism 20 is unlocked, and the tubular body 200 of the tubular member 1005 switches from the second state to the first state, a section of the reinforcing wire 300 located on the inner curved side 203 of the tubular body 200 can extend into the tubular body 200, and the reinforcing wire 300 can drive the movable mechanism 20 to move in the first direction; a section of the reinforcing wire 300 located on the outer curved side 204 of the tubular body 200 can extend out from the tubular body 200, and the reset mechanism 30 can drive the movable mechanism 20 to move in the second direction, thereby keeping the reinforcing wire 300 taut.

[0102] Understandably, the reinforcing wire 300 is always kept taut, and when the movable mechanism 20 is locked, the reinforcing wire 300 can provide good tensile strength for the tubular member 1005 or the tubular body 200 when it is stretched.

[0103] Please see Figure 10 and Figure 11 In some embodiments, the locking mechanism 40 includes a control member 41 and a locking assembly 42. The control member 41 is connected to at least a portion of the locking assembly 42. The control member 41 can drive at least a portion of the locking assembly 42 to move in a first direction, thereby locking the movable mechanism 20. The control member 41 can also drive at least a portion of the locking assembly 42 to move in a second direction, thereby unlocking the movable mechanism 20. The control member 41 can drive at least a portion of the locking assembly 42 to move in either the first or second direction to lock or unlock the movable mechanism 20.

[0104] For example, when the control member 41 rotates along a preset rotation direction, the control member 41 can drive at least a portion of the locking assembly 42 to move along a first direction to lock the movable mechanism 20; when the control member 41 rotates in a direction opposite to the preset rotation direction, the control member 41 can drive at least a portion of the locking assembly 42 to move along a second direction to unlock the movable mechanism 20. For example, the preset rotation direction is perpendicular to the axial direction of the housing 10.

[0105] For example, the movement direction of the control member 41 is the same as the movement direction of at least part of the locking assembly 42. For instance, the control member 41 is connected to at least part of the locking assembly 42, and the control member 41 can move synchronously with at least part of the locking assembly 42; when the control member 41 moves along a first direction, the control member 41 can drive at least part of the locking assembly 42 to move synchronously along the first direction to lock the movable mechanism 20; when the control member 41 moves along a second direction, the control member 41 can drive at least part of the locking assembly 42 to move synchronously along the second direction to unlock the movable mechanism 20.

[0106] For example, control element 41 includes control knobs or control buttons, etc.

[0107] Please see Figure 10 and Figure 11 In some embodiments, the locking assembly 42 includes a first locking member 421 connected to a control member 41; the control member 41 can drive the first locking member 421 to move from the proximal end to the distal end, so that the first locking member 421 engages with the rotating member 212 of the movable mechanism 20 in a damped manner, thereby locking the movable mechanism 20; the control member 41 can also drive the first locking member 421 to move from the distal end to the proximal end, so that the first locking member 421 disengages from the movable mechanism 20 in a damped manner, thereby unlocking the movable mechanism 20.

[0108] Please see Figure 10 and Figure 11 For example, the movable mechanism 20 includes a rotating member 212 and a winding member 213. When the first locking member 421 is dampedly engaged with the rotating member 212, the rotating member 212 contacts the first locking member 421 and generates a damping force. The damping force applied by the first locking member 421 to the rotating member 212 can prevent the movable mechanism 20 from moving, thereby locking the rotating member 212 and, consequently, locking the winding member 213. When the first locking member 421 is disengaged from the rotating member 212, the damping force between the rotating member 212 and the first locking member 421 is zero. The first locking member 421 does not apply a damping force to the rotating member 212, thereby unlocking the rotating member 212 and, consequently, unlocking the winding member 213. The damping engagement of the following two components is similar and will not be described again here.

[0109] For example, the reinforcing wire 300 is located on the curved outer side 204 of the tubular body 200, and the first locking member 421 unlocks the active mechanism 20. During the process of at least part of the tubular body 200 switching from the first state to the second state, the reinforcing wire 300 located inside the tubular body 200 is stretched and tends to elongate. The reinforcing wire 300 can drive the winding member 213 to rotate in the first direction, so that the winding member 213 releases part of the reinforcing wire 300 outward, so that the reinforcing wire 300 outside the tubular body 200 can extend into the tubular body 200; the reset mechanism 30 can undergo elastic deformation when the winding member 213 rotates in the first direction. During the transition of at least a portion of the tubular body 200 from the second state to the first state, a section of the reinforcing wire 300 located inside the tubular body 200 extends outside the tubular body 200. The winding member 213 can rotate in the second direction under the elastic restoring force of the reset mechanism 30, thereby winding a portion of the reinforcing wire 300 onto the winding member 213, thus keeping the reinforcing wire 300 taut. Understandably, the motion principle corresponding to the reinforcing wire 300 located on the inner curved side 203 of the tubular body 200 is similar, and will not be described in detail here.

[0110] In some embodiments, the rotation axis of the winding member 213 is perpendicular to the movement direction of the first locking member 421. In other embodiments, the rotation axis of the winding member 213 may intersect but not be perpendicular to the movement direction of the first locking member 421.

[0111] In some embodiments, the rotation axis of the rotating member 212 is perpendicular to the movement direction of the first locking member 421. In other embodiments, the rotation axis of the rotating member 212 may intersect the movement direction of the first locking member 421 but not be perpendicular to it.

[0112] For example, the rotation axis of the winding member 213 coincides with the rotation axis of the rotating member 212, thus simplifying the structure of the movable mechanism 20. In other embodiments, the rotation axis of the winding member 213 may also be parallel to or intersect with the rotation axis of the rotating member 212.

[0113] In some embodiments, one or more movable mechanisms 20 are provided with a first locking member 421. For example, when there are multiple movable mechanisms 20, each reinforcing wire 300 is provided with a movable mechanism 20, and multiple movable mechanisms 20 are provided with a first locking member 421. Thus, each movable mechanism 20 can be locked or unlocked by controlling one first locking member 421 through the control member 41. The locking or unlocking operation is simple, the number of components is small, and the structure is simple and compact. In other embodiments, each movable mechanism 20 may also be provided with a corresponding first locking member 421.

[0114] In some embodiments, the first locking member 421 can be integrally formed and connected to the control member 41; alternatively, the first locking member 421 and the control member 41 can be separately disposed, and the two can be connected by at least one of the following methods: snap-fit ​​connection, threaded connection, adhesive connection, screw fastening connection, etc. For example, the first locking member 421 is threadedly connected to the control member 41. In this way, when the movable mechanism 20 is locked or unlocked, no additional position holding structure is required to keep the first locking member 421 in the corresponding locked or unlocked position. Under the premise of ensuring that the locking mechanism 40 can unlock or lock the movable mechanism 20, the connecting device 100 has a simple structure and a small number of components.

[0115] Please see Figure 10 For example, the winding member 213 is rotatably connected to the housing 10, and the housing 10 can provide certain support and limit the winding member 213 to ensure that the winding member 213 can rotate relative to the housing 10.

[0116] For example, the rotating member 212 and at least a portion of the winding member 213 are disposed within the housing 10. For example, at least a portion of the first locking member 421 is disposed within the housing 10.

[0117] For example, the rotating part 212 can be integrally formed and connected with the winding part 213; the rotating part 212 can also be separately set from the winding part 213, and the two are connected by at least one of the following methods: snap-fit ​​connection, threaded connection, adhesive connection, screw locking connection, etc.

[0118] Please see Figure 11 For example, the first locking member 421 has a first locking surface 4211, and the rotating member 212 has a second locking surface 2121. The control member 41 can drive the first locking member 421 to move from the proximal end to the distal end, so that the first locking surface 4211 contacts and dampens the second locking surface 2121, thereby locking the rotating member 212. The control member 41 can also drive the first locking member 421 to move from the distal end to the proximal end, so that the first locking surface 4211 disengages from the damping engagement with the second locking surface 2121, thereby unlocking the rotating member 212.

[0119] Understandably, the shape and / or structure of the rotating component 212, the first locking component 421, the first locking surface 4211, and the second locking surface 2121 can be configured according to actual needs. For example, the first locking surface 4211 may include a concave arc surface. The shape of the concave arc surface helps to increase the contact area with the rotating component 212 and improve the locking efficiency. Alternatively, the rotating component 212 may include a rotating wheel, and the second locking surface 2121 may include the side of the rotating wheel.

[0120] In some embodiments, the rotating member 212 may be omitted, and the first locking member 421 engages or disengages from the winding member 213 of the movable mechanism 20 in a damping engagement, thereby unlocking or locking the winding member 213.

[0121] Please see Figure 12 In one embodiment, the locking assembly 42 includes a transmission member 422 and a second locking member 423. The transmission member 422 is connected to the control member 41. The transmission member 422 is at least partially inserted into the second locking member 423. The control member 41 can drive the transmission member 422 to move from the proximal end to the distal end, so that the second locking member 423 locks the movable mechanism 20. The control member 41 can also drive the transmission member 422 to move from the distal end to the proximal end, so that the second locking member 423 unlocks the movable mechanism 20.

[0122] Please see Figure 12 For example, the actuating mechanism 20 includes a slider 211. The control member 41 can drive the transmission member 422 to move from the proximal end to the distal end, so that the transmission member 422 drives at least part of the second locking member 423 to move, thereby causing the second locking member 423 to engage with the slider 211 in a damped manner, thereby locking the slider 211; the control member 41 can also drive the transmission member 422 to move from the distal end to the proximal end, so that the second locking member 423 disengages from the slider 211 in a damped manner, thereby unlocking the slider 211.

[0123] Exemplarily, the reinforcing wire 300 is located on the curved outer side 204 of the tubular body 200, and the second locking member 423 unlocks the sliding member 211. During the process of at least a portion of the tubular body 200 switching from the first state to the second state, the reinforcing wire 300 located inside the tubular body 200 is stretched and tends to elongate. The reinforcing wire 300 can drive the sliding member 211 to slide from the proximal end to the distal end, allowing the reinforcing wire 300 outside the tubular body 200 to extend into the tubular body 200; the reset mechanism 30 can undergo elastic deformation when the sliding member 211 slides from the proximal end to the distal end. During the process of at least a portion of the tubular body 200 switching from the second state to the first state, a section of the reinforcing wire 300 located inside the tubular body 200 can extend outside the tubular body 200, and the sliding member 211 can slide from the distal end to the proximal end under the action of the elastic restoring force of the reset mechanism 30, so that the reinforcing wire 300 can remain taut. Understandably, the motion principle corresponding to the reinforcing filament 300 being located on the inner curved side 203 of the tubular body 200 is similar, and will not be elaborated here.

[0124] Please see Figure 12In some embodiments, the moving direction of the transmission member 422 is parallel to the moving direction of the movable mechanism 20, and the moving direction of the second locking member 423 intersects the moving direction of the movable mechanism 20. For example, the moving direction of the transmission member 422 is parallel to the sliding direction of the slider 211, and the moving direction of the second locking member 423 is perpendicular to the sliding direction of the slider 211.

[0125] In some embodiments, one or more movable mechanisms 20 are associated with a transmission member 422. For example, when there are multiple movable mechanisms 20, each movable mechanism 20 is associated with a transmission member 422. Thus, by controlling one transmission member 422 through the operation control member 41, each movable mechanism 20 can be locked or unlocked. The unlocking or unlocking operation is simple, the number of components is small, and the structure is simple and compact. In other embodiments, each movable mechanism 20 may also be associated with a transmission member 422.

[0126] In some embodiments, the number of movable mechanisms 20 corresponds to the number of second locking members 423. For example, when there are multiple movable mechanisms 20, one movable mechanism 20 corresponds to one second locking member 423, thus allowing for flexible arrangement of the second locking members 423 and facilitating assembly. In other embodiments, multiple movable mechanisms 20 may also correspond to one second locking member 423.

[0127] In some embodiments, the transmission component 422 can be integrally formed and connected to the control component 41; the transmission component 422 can also be separately provided from the control component 41, and the two are connected by at least one of the following methods: snap-fit ​​connection, threaded connection, adhesive connection, screw locking connection, etc. For example, the transmission component 422 is threadedly connected to the control component 41. In this way, when the movable mechanism 20 is locked or unlocked, no additional position holding structure is needed to hold the transmission component 422 in the corresponding position, so that the second locking component 423 can be held in the corresponding locked or unlocked position. Under the premise of ensuring that the locking mechanism 40 can unlock or lock the movable mechanism 20, the connecting device 100 has a simple structure and a small number of components.

[0128] In other embodiments, the transmission member 422 may be omitted, and the second locking member 423 is directly connected to the control member 41. The control member 41 drives the second locking member 423 to move so that the second locking member 423 locks or unlocks the active mechanism 20.

[0129] Please see Figure 13In some embodiments, the second locking member 423 can form a hollow channel 4231, the channel wall of the hollow channel 4231 includes a conical wall 4232, the transmission member 422 is provided with a conical surface 4221, and the control member 41 can drive the transmission member 422 to move from the proximal end to the distal end, so that the conical surface 4221 cooperates with the conical wall 4232, thereby making the second locking member 423 dampedly cooperate with the movable mechanism 20. Understandably, when the control member 41 drives the transmission member 422 to move from the proximal end to the distal end until the conical surface 4221 is tightly engaged with the conical wall 4232, as the transmission member 422 moves further from the proximal end to the distal end, at least part of the conical wall 4232 can move so that the second locking member 423 is damped and engaged with the movable mechanism 20, thereby locking the movable mechanism 20; when the control member 41 drives the transmission member 422 to move from the distal end to the proximal end to a certain position, the conical surface 4221 no longer presses against the conical wall 4232, the second locking member 423 disengages from the damped engagement with the movable mechanism 20, thereby unlocking the movable mechanism 20.

[0130] Please see Figure 13 In some embodiments, the second locking member 423 includes a plurality of wedges 4233 that can cooperate to form a hollow channel 4231. Thus, when the control member 41 drives the transmission member 422 to move from the proximal end to the distal end, the wedges 4233 can move radially outward along the hollow channel 4231, so that the wedges 4233 contact and dampen with the movable mechanism 20, thereby locking the movable mechanism 20; when the control member 41 drives the transmission member 422 to move from the distal end to the proximal end, the wedges 4233 can move radially inward along the hollow channel 4231, so that the wedges 4233 disengage from the movable mechanism 20, thereby unlocking the movable mechanism 20. Exemplarily, the plurality of wedges 4233 are spaced circumferentially along the hollow channel 4231 to allow the wedges 4233 to move radially.

[0131] In other embodiments, the second locking member 423 may also be of other structures. For example, see [link to relevant documentation]. Figure 14 The proximal ends of multiple wedges 4233 are spaced apart circumferentially along the hollow channel 4231; the distal ends of multiple wedges 4233 are connected as one unit, while the proximal ends of multiple wedges 4233 are not connected to each other, thus allowing the unconnected parts of the wedges 4233 to still move radially to contact and dampen the movable mechanism 20, while reducing the assembly difficulty of the wedges 4233.

[0132] Understandably, the proximal end of the reinforcing wire 300 can be fixedly connected to the movable mechanism 20; or, the proximal end of the reinforcing wire 300 can also be fixedly connected to the housing 10.

[0133] Please see Figure 15In some embodiments, the movable mechanism 20 includes a slider 211, which includes a sliding portion 2111 and a fixing portion 2112. The sliding portion 2111 is slidably connected to the housing 10 and connected to the reset mechanism 30. The fixing portion 2112 is connected to the sliding portion 2111 and is configured to fix the proximal end of the reinforcing wire 300. Thus, the reinforcing wire 300 can drive the slider 211 to move in a first direction; and the slider 211 can pre-tighten the reinforcing wire 300 under the action of the reset mechanism 30, thereby enabling the reinforcing wire 300 to remain taut.

[0134] Please see Figure 15 In some embodiments, the fixing portion 2112 includes a first through portion 2113, a winding portion 2114, and a second through portion 2115, with both ends of the winding portion 2114 connected to the first through portion 2113 and the second through portion 2115. Exemplarily, the reinforcing wire 300 passes through the first through portion 2113, is wound around the winding portion 2114, and then passes through the second through portion 2115, so that the proximal end of the reinforcing wire 300 can be reliably fixed to the fixing portion 2112. Exemplarily, the diameter of the winding portion 2114 is smaller than the diameter of the first through portion 2113 and the second through portion 2115, so that the first through portion 2113 and the second through portion 2115 can limit the reinforcing wire 300 wound on the winding portion 2114.

[0135] For example, the first through-hole portion 2113, the winding portion 2114, and the second through-hole portion 2115 cooperate to form a hollow hole 2116, which communicates with the second through-hole portion 2115. The reinforcing wire 300 can enter the hollow hole 2116 through the second through-hole portion 2115, and external screws or the like can be inserted into the hollow hole 2116 to lock the proximal end of the reinforcing wire 300, thereby improving the connection reliability between the reinforcing wire 300 and the fixing portion 2112.

[0136] Please see Figure 16In some embodiments, the movable mechanism 20 includes a movable component 21 and a motion wheel assembly 22. The motion wheel assembly 22 is connected to the movable component 21 and is used for winding the reinforcing wire 300. The proximal end of the reinforcing wire 300 is used to connect to the housing 10. The motion wheel assembly 22 can move under the drive of the reinforcing wire 300, thereby driving the movable component 21 to move in a first direction. The movable component 21 can move in a second direction under the drive of the reset mechanism 30, thereby driving the motion wheel assembly 22 to move, thus keeping the reinforcing wire 300 taut. In this way, the reinforcing wire 300 extending from the tubular body 200 can extend as smoothly as possible, reducing the resistance to the movement of the reinforcing wire 300, and ensuring that the reinforcing wire 300 can smoothly extend into or out of the tubular body 200 according to actual needs.

[0137] For example, when the movable component 21 is unlocked, the motion wheel assembly 22 can move under the drive of the reinforcing wire 300, thereby causing the motion wheel assembly 22 to drive the movable component 21 to move in a first direction, so that the reinforcing wire 300 outside the tubular body 200 can partially extend into the tubular body 200; the movable component 21 can move in a second direction under the drive of the reset mechanism 30, thereby driving the motion wheel assembly 22 to move, so that the reinforcing wire 300 remains taut under the action of the motion wheel assembly 22.

[0138] Exemplarily, the active component 21 includes the slider 211 of any of the above embodiments. Exemplarily, the active component 21 includes at least one of the winding member 213 and the rotating member 212, wherein the winding member 213 includes the winding member 213 of any of the above embodiments, and the rotating member 212 includes the rotating member 212 of any of the above embodiments.

[0139] Please see Figure 16 In some embodiments, the motion wheel assembly 22 includes a connector 221 and a motion wheel 222. The connector 221 is connected to the slider 211. The motion wheel 222 is connected to the connector 221 and is used for winding the reinforcing wire 300. The motion wheel 222 can move under the drive of the reinforcing wire 300, thereby driving the connector 221 to move, and then driving the slider 211 to move in a first direction. The movable mechanism 20 can move in a second direction under the drive of the reset mechanism 30, thereby driving the connector 221 and the motion wheel 222 to move, so that the reinforcing wire 300 is kept taut under the action of the motion wheel 222.

[0140] For example, the reinforcing wire 300 is located on the curved outer side 204 of the tubular body 200. During the process of at least a portion of the tubular body 200 switching from the first state to the second state, the reinforcing wire 300 located inside the tubular body 200 is stretched and tends to elongate. The reinforcing wire 300 can drive the motion wheel 222 to move, thereby causing the connector 221 to drive the slider 211 to slide from the proximal end to the distal end, so as to allow the reinforcing wire 300 outside the tubular body 200 to partially extend into the tubular body 200. During the process of at least a portion of the tubular body 200 switching from the second state to the first state, a section of the reinforcing wire 300 located inside the tubular body 200 can extend outside the tubular body 200. The slider 211 can slide from the distal end to the proximal end under the action of the reset force of the reset mechanism 30, thereby causing the slider 211 to drive the connector 221 and the motion wheel 222 to move, thereby keeping the reinforcing wire 300 taut under the action of the motion wheel 222.

[0141] For example, the direction of movement of the motion wheel 222 is parallel to the first direction, so that the driving force required to drive the motion wheel 222 can be minimized, thus saving effort. In other embodiments, the direction of movement of the motion wheel 222 may intersect the first direction but not be perpendicular to it.

[0142] For example, the connector 221 and the moving wheel 222 can be integrally formed and connected; the connector 221 and the moving wheel 222 can also be separately set, and the two are connected by at least one of the following methods: snap-fit ​​connection, threaded connection, adhesive connection, screw locking connection, etc.

[0143] For example, the connector 221 and at least part of the movable mechanism 20 (such as the slider 211 or the winding member 213) can be integrally formed and connected; the connector 221 and at least part of the movable mechanism 20 can also be separately provided and connected by at least one of the following methods: snap-fit ​​connection, threaded connection, adhesive connection, screw locking connection, etc.

[0144] Please see Figure 16 , combined Figure 12 In some embodiments, the connecting device 100 further includes an operating part 50, which is connected to the movable mechanism 20 and is at least partially located outside the housing 10. The operating part 50 can drive the movable mechanism 20 to move in a second direction. Thus, the operating part 50 can drive the movable mechanism 20 to move, thereby controlling the reinforcing wire 300, which in turn causes the reinforcing wire 300 to bend the tubular body 200. This allows for active adjustment of the bending degree of the tubular component 1005 according to actual needs, achieving the bending function of the tubular body 200. Understandably, at least a portion of the operating part 50 extends outside the housing, facilitating manual operation or operation via other external devices.

[0145] For example, when the locking mechanism 40 unlocks the movable mechanism 20, the operating unit 50 can drive the movable mechanism 20 to move in the second direction.

[0146] For example, the operation unit 50 includes a slider, etc.

[0147] Please see Figure 17 In some embodiments, the reset mechanism 30 includes an elastic structure 31 and a deformation adjustment structure 32. The elastic structure 31 is elastic. The movable mechanism 20 and the deformation adjustment structure 32 are respectively connected to the elastic structure 31, and the deformation adjustment structure 32 is used to adjust the deformation of the elastic structure 31. Understandably, the greater the tension of the elastic structure 31, the tighter the reinforcing wire 300, the greater the tension force of the reinforcing wire 300, and the greater the force required to bend the tubular body 200 through which the reinforcing wire 300 is threaded. In this embodiment, the deformation of the elastic structure 31 can be adjusted by the deformation adjustment structure 32, thereby allowing the tension of the elastic structure 31 to be adjusted according to actual needs, and thus adjusting the initial tension force of the reinforcing wire 300.

[0148] Please see Figure 17 In some embodiments, the housing 10 forms a limiting portion 322, and the deformation adjustment structure 32 includes a moving member 321 and a limiting portion 322. The moving member 321 is movable relative to the housing 10; the limiting portion 322 is formed in the housing 10 and can cooperate with the moving member 321 to limit the movement position of the moving member 321 relative to the housing 10. Thus, when the deformation adjustment structure 32 adjusts the deformation of the elastic structure 31 to an appropriate amount, the limiting portion 322 can limit the moving member 321 to the desired position.

[0149] Please see Figure 17 For example, the limiting part 322 includes at least two limiting holes, and the multiple limiting holes are spaced apart. The moving member 321 can be selectively inserted into any one of the limiting holes to adjust the deformation of the elastic structure 31. Understandably, when it is necessary to adjust the deformation of the elastic structure 31, the moving member 321 can disengage from the limiting hole, thereby allowing the moving member 321 to move relative to the housing 10. When the moving member 321 moves to a suitable position to adjust the deformation of the elastic structure 31 to a suitable amount, the moving member 321 can be inserted into the corresponding limiting hole, and the movement of the moving member 321 is restricted by the limiting engagement between the moving member 321 and the limiting hole.

[0150] Please see Figure 18 In some embodiments, the moving part 321 includes a moving body 3211 and a fixing nut 3212. One end of the elastic structure 31 is connected to the moving body 3211, and the fixing nut 3212 limits and fixes one end of the elastic structure 31 to the moving body 3211.

[0151] For example, at least a portion of the moving body 3211 extends outside the housing 10 to facilitate user operation of the moving body 3211.

[0152] In some embodiments, the two ends of the elastic structure 31 are respectively connected to the moving member 321 and at least a portion of the movable mechanism 20. See also... Figure 19 For example, the housing 10 is formed with a guide groove 12, and the moving member 321 can be slidably connected with the guide groove 12 to drive one end of the elastic structure 31 to move, thereby adjusting the deformation of the elastic structure 31.

[0153] For example, the two ends of the elastic structure 31 are respectively connected to the slider 211 and the moving member 321. The elastic structure 31 includes the first elastic member 311 of any of the above embodiments.

[0154] For example, the two ends of the elastic structure 31 are respectively connected to the winding member 213 and the moving member 321. The elastic structure 31 includes the second elastic member 312 of any of the above embodiments.

[0155] Please see Figure 20 , combined Figure 6 In some embodiments, the housing 10 is provided with a guide portion 13 for guiding the reinforcing filament 300. This allows the reinforcing filament 300 extending from the tubular body 200 to extend as smoothly as possible, reducing the resistance to the movement of the reinforcing filament 300 and ensuring that the reinforcing filament 300 can smoothly extend into or out of the tubular body 200 according to actual needs.

[0156] For example, the guide portion 13 includes a smooth transition surface to smoothly transition the reinforcing filament 300. For example, the guide portion 13 includes an arcuate transition surface, etc.

[0157] The number of guide sections 13 can be set according to actual needs, such as one, two, three or more. For example, the reinforcing wire 300 extending from the tubular body 200 is guided by two guide sections 13 and then connected to the moving mechanism 20.

[0158] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "mechanical coupling," and "coupling" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Mechanical coupling or coupling of two components includes direct coupling and indirect coupling, such as a direct fixed connection or a connection through a transmission mechanism. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0159] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0160] The foregoing disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described above. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0161] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific method step, feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific method steps, features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0162] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A connecting device, characterized in that, include: case; A movable mechanism is movably connected to the housing, wherein at least one of the housing and the movable mechanism is configured to be connected to the reinforcing wire of the tubular member; A reset mechanism, wherein both the movable mechanism and the housing are connected to the reset mechanism; The movable mechanism is capable of moving relative to the housing in a first direction under the drive of the reinforcing wire, and is also capable of moving relative to the housing in a second direction under the drive of the reset mechanism, wherein the first direction is opposite to the second direction.

2. The connecting device according to claim 1, characterized in that, The organizations involved in the activities include: The sliding member is slidably connected to the housing; the sliding member can slide from the proximal end to the distal end under the drive of the reinforcing wire, and can slide from the distal end to the proximal end under the action of the reset mechanism.

3. The connecting device according to claim 1, characterized in that, The organizations involved in the activities include: Rotating component; A winding member is used to wind a portion of the reinforcing wire, is connected to the rotating member, and is rotatably connected to the housing. One end of the reset mechanism is connected to the winding member, and the other end is connected to the housing. The winding member can rotate in the first direction under the drive of the reinforcing wire to release a portion of the reinforcing wire outward, and can rotate in the second direction under the drive of the reset mechanism to wind a portion of the reinforcing wire onto the winding member.

4. The connecting device according to claim 1, characterized in that, Also includes: A locking mechanism is provided, which is movable to lock or unlock the active mechanism; when the active mechanism is unlocked, the active mechanism is movable relative to the housing in a first direction under the drive of the reinforcing wire, and is movable relative to the housing in a second direction under the drive of the reset mechanism.

5. The connecting device according to claim 4, characterized in that, The locking mechanism includes: Control components; A first locking member is connected to the control member; the control member can drive the first locking member to move from the proximal end to the distal end, so that the first locking member engages with the movable mechanism in a damping manner, thereby locking the movable mechanism; the control member can also drive the first locking member to move from the distal end to the proximal end, so that the first locking member disengages from the movable mechanism in a damping manner, thereby unlocking the movable mechanism.

6. The connecting device according to claim 4, characterized in that, The locking mechanism includes: Control components; A transmission component, connected to the control component; The second locking member, wherein the transmission member is at least partially inserted into the second locking member; the control member is capable of driving the transmission member to move from the proximal end to the distal end, so that the second locking member locks the movable mechanism; the control member is capable of driving the transmission member to move from the distal end to the proximal end, so that the second locking member unlocks the movable mechanism.

7. The connecting device according to claim 6, characterized in that, The second locking member can form a hollow channel, the channel wall of the hollow channel includes a conical wall, the transmission member is provided with a conical surface, and the control member can drive the transmission member to move from the proximal end to the distal end, so that the conical surface cooperates with the conical wall, thereby making the second locking member damped by the movable mechanism.

8. The connecting device according to claim 4, characterized in that, The locking mechanism includes a control component and a first locking component, the first locking component being connected to the control component, and the rotation axis of the winding component of the movable mechanism being perpendicular to the movement direction of the first locking component; or, The locking mechanism includes a control component, a transmission component, and a second locking component. The transmission component is connected to the control component and is at least partially inserted into the second locking component. The movement direction of the transmission component of the locking mechanism is parallel to the movement direction of the movable mechanism, and the movement direction of the second locking component of the locking mechanism intersects with the movement direction of the movable mechanism.

9. The connecting device according to any one of claims 1-8, characterized in that, The organizations involved in the activities include: Activity components; A motion wheel assembly, connected to the movable component, is used for winding the reinforcing wire, the proximal end of which is used to connect to the housing; the motion wheel assembly can move under the drive of the reinforcing wire, thereby driving the movable component to move along the first direction; the movable component can move along the second direction under the drive of the reset mechanism, thereby driving the motion wheel assembly to move.

10. The connecting device according to any one of claims 1-8, characterized in that, The movable mechanism includes a slider, the slider comprising: The sliding part is slidably connected to the housing and connected to the reset mechanism; The wire fixing part, connected to the sliding part, is configured to fix the proximal end of the reinforcing wire.

11. The connecting device according to any one of claims 1-8, characterized in that, The connecting device further includes: An operating part is connected to the movable mechanism, and the operating part is at least partially located outside the housing; the operating part is capable of driving the movable mechanism to move along the second direction.

12. The connecting device according to any one of claims 1-8, characterized in that, The reset mechanism includes: An elastic structure, possessing elasticity; A deformation adjustment structure is provided, wherein the movable mechanism and the deformation adjustment structure are respectively connected to the elastic structure, and the deformation adjustment structure is used to adjust the deformation of the elastic structure.

13. A tubular component, characterized in that, include: tubular body; Reinforcing wires are threaded through the tubular body; as well as The connecting device according to any one of claims 1-12, wherein the proximal end of the reinforcing wire is connected to the connecting device.

14. The tubular component according to claim 13, characterized in that, The tubular body has a first channel and at least one second channel, the second channel being used for the reinforcing filament to pass through; when there are multiple second channels, the multiple second channels are arranged circumferentially spaced along the first channel.

15. The tubular component according to claim 13, characterized in that, The tubular component includes a first reinforcing wire and a second reinforcing wire, both of which are provided with the corresponding movable mechanism. When at least a portion of the tubular body switches from a first state to a second state, if the first reinforcing wire is located on the outer side of the bend of the tubular body and the second reinforcing wire is located on the inner side of the bend of the tubular body, a section of the first reinforcing wire located outside the tubular body can extend into the tubular body, and the first reinforcing wire can drive the corresponding movable mechanism to move along the first direction; a section of the second reinforcing wire located inside the tubular body can extend out of the tubular body, and the movable mechanism corresponding to the second reinforcing wire can move along the second direction under the drive of the reset mechanism; when at least a portion of the tubular body switches from a second state to a first state, a section of the first reinforcing wire located inside the tubular body can extend out of the tubular body, and the movable mechanism corresponding to the first reinforcing wire can move along the second direction under the drive of the reset mechanism; a section of the second reinforcing wire located outside the tubular body can extend into the tubular body, and the second reinforcing wire can drive the corresponding movable mechanism to move along the first direction; the degree of bending of at least a portion of the tubular body in the first state is less than the degree of bending of the tubular body in the second state.

16. A conveying system, characterized in that, include: Sheath; as well as A sheath core, the sheath core passing through the sheath tube, and at least one of the sheath core and the sheath tube comprising a tubular member as described in any one of claims 13-15.

Images