CN217338694U

CN217338694U - Conveying device and medical instrument system

Info

Publication number: CN217338694U
Application number: CN202221018369.1U
Authority: CN
Inventors: 吴能标; 李建民; 高国庆
Original assignee: Hangzhou Dinova EP Technology Co Ltd
Current assignee: Hangzhou Dinova EP Technology Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-02
Anticipated expiration: 2032-04-28

Abstract

The embodiment of the utility model discloses a conveying device and a medical instrument system, wherein the conveying device comprises an outer handle shell and a first liquid injection joint, the outer handle shell is provided with a cavity and a first opening, and the first opening is communicated with the cavity; at least part of the first liquid injection joint is arranged in the cavity and comprises a valve body and an opening and closing assembly, the valve body forms a receiving channel and a fluid channel, the receiving channel is communicated with the first opening and used for receiving an injection end of a first injection device, and the fluid channel is communicated with an outer sheath tube assembly; the outer sheath tube assembly is arranged in the cavity in a penetrating mode, and the far end of the outer sheath tube assembly is used for being connected with an implantable device; the opening and closing assembly is provided with a notch, the notch penetrates through two opposite side faces in the thickness direction of the opening and closing assembly, the opening and closing assembly is arranged between the receiving channel and the fluid channel, the injection end of the first injection device penetrates through the notch along the receiving channel to enter the fluid channel, liquid is injected into the fluid channel, and the liquid flows through the fluid channel to enter the inner cavity of the sheath tube assembly.

Description

Conveying device and medical instrument system

Technical Field

The embodiment of the utility model provides a relate to medical instrument technical field, particularly, relate to a conveyor and medical instrument system.

Background

Percutaneous intervention therapy is a very rapidly developing means for treating diseases in recent years, and the field to which the therapy is applied is also becoming more and more widespread. Wherein, the device and/or the medicine can be released to the heart, the arteriovenous blood vessel and other parts of the human body by adopting the transcatheter interventional therapy method.

The delivery devices used to deliver and release devices and/or drugs in the related art require an external three-way valve to create a pathway for external drugs to be injected into the patient through the interventional pathway. However, the external three-way valve of the conveying device increases the volume of the conveying device on one hand, and the three-way valve hangs down outside the conveying device on the other hand, which is not convenient for doctors to pull, rotate and the like the conveying device.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a can simplify handle structure and be convenient for conveyor of operation to solve the problem that exists among the correlation technique.

The conveying device provided by the embodiment of the utility model comprises an outer handle shell and a first liquid injection joint, wherein the outer handle shell is provided with a cavity and a first opening, and the first opening is communicated with the cavity; at least part of the first liquid injection joint is arranged in the cavity and comprises a valve body and an opening and closing assembly, the valve body forms a receiving channel and a fluid channel, the receiving channel is communicated with the first opening and used for receiving an injection end of a first injection device, and the fluid channel is communicated with an outer sheath tube assembly; wherein the outer sheath tube assembly is arranged in the cavity in a penetrating way, and the distal end of the outer sheath tube assembly is used for connecting an implantable device; the opening and closing assembly is provided with a notch, the notch penetrates through two opposite side surfaces in the thickness direction of the opening and closing assembly, the opening and closing assembly is arranged between the receiving channel and the fluid channel, the injection end of the first injection device penetrates through the notch along the receiving channel to enter the fluid channel, liquid is injected into the fluid channel, and the liquid flows through the fluid channel to enter the inner cavity of the outer sheath tube assembly.

The medical device system of the embodiment of the utility model comprises an implantable device and the conveying device, wherein the conveying device is used for conveying and releasing the implantable device to the body of a patient.

An embodiment of the above utility model has at least the following advantages or beneficial effects:

the utility model discloses first annotate liquid joint at least part and set up in the cavity of handle casing, the receiving channel that first notes liquid connects can receive first injection device's injection end, and the injection end can pass the incision along receiving channel and get into fluid passage to make first injection device's liquid pass the incision along receiving channel and get into fluid passage, finally get into the inner chamber of sheath pipe subassembly. Compared with a mode that an external three-way valve is adopted to supply liquid to the sheath pipe assembly in the related art, the first liquid injection connector is integrated in the handle shell, on one hand, the integration level of the handle is improved, and on the other hand, when an operator operates the handle shell, axial movement and/or circumferential rotation movement of the handle are facilitated.

Drawings

Fig. 1 shows a schematic view of a medical device system according to an embodiment of the present invention.

Fig. 2 shows a schematic view of an implantable device according to an embodiment of the invention.

Fig. 3 is a schematic view of a conveying device according to an embodiment of the present invention.

Figure 4 shows a schematic view of an outer sheath member according to an embodiment of the invention.

Fig. 5 is a schematic view of an inner sheath member according to an embodiment of the present invention.

Fig. 6 shows a partial cross-sectional view of a delivery device according to an embodiment of the invention.

Fig. 7 shows a schematic view of a locking member according to an embodiment of the invention.

Fig. 8 shows a cross-sectional view of a locking member according to an embodiment of the invention.

Figure 9 shows a partial cross-sectional view of an outer sheath member of an embodiment of the invention.

Fig. 10 is a schematic view of a first filling joint according to an embodiment of the present invention.

Fig. 11 is an exploded view of the first filling joint according to the embodiment of the present invention.

Fig. 12 shows a cross-sectional view of a first filling joint according to an embodiment of the invention.

Fig. 13 is a schematic view of a second seat according to an embodiment of the present invention.

Fig. 14 is a schematic view showing that the two ends of the connecting tube of the embodiment of the present invention are respectively connected to the outer sheath connector and the first fluid injection connector.

Fig. 15 shows a partial cross-sectional view of an inner sheath member according to an embodiment of the invention.

Fig. 16 shows a partial enlarged view at a in fig. 9.

Wherein the reference numerals are as follows:

10. a conveying device; 100. an outer sheath member; 200. an inner sheath member; 1. a sheath handle; 11. an outer handle housing; 111. a sheath interface portion; 112. a first opening; 12. a first liquid injection joint; 13. a first conductive contact; 14. a valve body; 141. a receiving channel; 142. a fluid channel; 143. a first seat body; 144. a second seat body; 145. a channel portion; 146. a connecting portion; 147. accommodating grooves; 1471. a butting surface; 148. A diversion trench; 149. avoiding a space; 15. an opening and closing assembly; 15a, a gasket; 151. cutting; 16. an outer sheath connector; 161. a main channel; 162. A branch channel; 163. a main pipeline; 164. branch pipelines; 165. a seal member; 166. opening a hole; 167. a tip; 168. a middleware; 169. a base; 17. a connecting pipe; 18. a positioning structure; 181. a positioning column; 182. a positioning frame; 183. a positioning cavity; 2. an outer sheath tube assembly; 21. a sheath hose; 22. an outer conductive head; 4. an inner sheath handle; 41. an inner handle housing; 411. an inner sheath interface; 412. a second opening; 42. a second liquid injection joint; 421. a first channel; 422. a second channel; 43. a second conductive contact; 44. a three-way valve; 45. a wire guide opening; 5. an inner sheath tube assembly; 51. an inner sheath hose; 52. an inner conductive head; 53. a guide sleeve; 54. a reinforcement tube; 6. a locking member; 61. a first locking tube; 611. A limiting part; 62. a second locking tube; 621. a first tube section; 622. a second tube section; 63. an extrusion; 631. a first sliding surface; 64. A clamping member; 641. a second sliding surface; 642. a clamping jaw; 65. a knob; 7. a loader; 8. an implantable device; 81. sealing the disc; 82. An anchor plate; 821. an electrode; 83. a first connecting member; 84. a second connecting member; 85. a first fixing member; 86. a second fixing member; 87. a third fixing member; 88. an expandable body.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

As shown in fig. 1, fig. 1 is a schematic diagram of a medical device system according to an embodiment of the present invention. The medical device system of the present embodiment includes a delivery device 10, an implantable device 8, and a loader 7. The delivery device 10 is used to deliver and implant the implantable device 8 into a patient by way of an interventional procedure. The loader 7 fits around the periphery of the delivery device 10 for loading the implantable device 8 onto the delivery device 10.

It will be understood that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present invention, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The implantable device 8 may be of the type of a heart occluder, a blood vessel filter, or the like. While the present invention is described with reference to the implantable device 8 being a left atrial appendage occluder, it is to be understood that the implantable device 8 can be other types of implantable devices.

Referring to fig. 2, fig. 2 is a schematic view of an implantable device 8 according to an embodiment of the present invention. As an example, the implantable device 8 is a left atrial appendage occluder including an inflatable body 88 and first and

second connectors

83, 84 disposed on the inflatable body 88. The first connector 83 and the second connector 84 are spaced apart in the axial direction of the implantable device 8 and are adapted to connect with the delivery device 10. For example, the first connector 83 is removably attachable to the distal end of the outer sheath assembly 2 of the delivery device 10, and the second connector 84 is removably attachable to the distal end of the inner sheath assembly 5 of the delivery device 10, as will be described in greater detail below.

The expandable body 88 includes a sealing disk 81 and an anchoring disk 82, the sealing disk 81 and the anchoring disk 82 being disposed at a spacing in the axial direction of the implantable device 8, and the sealing disk 81 being disposed at the proximal end of the anchoring disk 82. The first connector 83 is disposed proximal to the second connector 84, specifically, the first connector 83 is disposed on the sealing plate 81 and the second connector 84 is disposed on the anchoring plate 82.

It should be noted that, in the present embodiment, the terms "distal", "proximal" and "proximal" are defined in terms of the distance along the delivery path relative to the operator operating the delivery device 10 during the procedure. Specifically, the end/side of a component along the delivery path that is closer to the operator is "proximal"/"proximal", and the end along the delivery path that is further from the operator is "distal"/"distal".

As an example, the implantable device 8 is released to the left atrial appendage and the distal end of the delivery device 10 is withdrawn from the body after the first connector 83 and the second connector 84, respectively, are disengaged from the delivery device 10. For example, the first connector 83 and the second connector 84 can be both connected to the delivery device 10 in a circumferentially rotationally releasable manner, such as the first connector 83 being threaded to the delivery device 10 and the second connector 84 being threaded to the delivery device 10.

Of course, in some embodiments, the first connector 83 and the second connector 84 may be in a plug-and-pull releasable connection relationship with the delivery device 10. In some embodiments, the first connector 83 is indirectly connected to the distal end of the outer sheath assembly 2 and/or the second connector 84 is indirectly connected to the distal end of the inner sheath assembly 5.

In the present embodiment, the sealing disk 81 and the anchor disk 82 may each be made of an electrically conductive material, the sealing disk 81 is electrically conductive using a skeleton, the first connection member 83 is electrically connected to the skeleton of the sealing disk 81, the anchor disk 82 is provided with an electrode 821 for electrical conduction, and the second connection member 84 is electrically connected to the electrode 821 of the anchor disk 82. The first connector 83 and the second connector 84 are also used for transmitting electrical energy.

As an example, as shown in fig. 2, a plurality of fixing members, namely a first fixing member 85, a second fixing member 86 and a third fixing member 87, are further disposed between the first connecting member 83 and the second connecting member 84. These fasteners serve to connect the sealing disk 81 to the anchor disk 82 and serve as insulation.

Specifically, the sealing disc 81 is mesh-shaped and may be manufactured by a weaving or cutting process, and a first connector 83 is attached to the proximal end of the sealing disc 81, preferably also for capturing the proximal end of the woven wire in the sealing disc 81. The first fixing member 85 is disposed at the distal end of the sealing disc 81, and preferably, the first fixing member 85 is also used for bundling the distal end of the braided wire of the sealing disc 81. The first fixing member 85 may be made of a conductive material or an insulating material.

The anchor plate 82 may be made by a weaving process or a cutting process, the ends of the anchor plate 82 are bunched together and compressed between the second fixing member 86 and the third fixing member 87, and the second fixing member 86 and the third fixing member 87 may be made of an insulating material. The second connecting member 84 is provided at the distal end of the third fixing member 87, thereby ensuring insulation between the sealing disk 81 and the anchoring disk 82, and insulation between the anchoring disk 82 and the second connecting member 84.

It will be appreciated that the above description merely illustrates inflatable body 88 by way of example in fig. 2, and that inflatable body 88 in fig. 2 includes sealing disk 81, anchoring disk 82, in a double-disk configuration. In other embodiments, inflatable body 88 is in other configurations, such as a single-disk configuration or a three-disk configuration or a more-disk configuration, such as inflatable body 88 being a single-disk configuration and plunger-like.

The above description is merely illustrative of how insulation is achieved between the sealing disk 81 and the anchoring disk 82 by way of example in fig. 2. Of course, in other embodiments, the first connecting member 83 and the second connecting member 84 are insulated in other manners.

As shown in fig. 3, fig. 3 is a schematic view of a conveying device 10 according to an embodiment of the present invention. The delivery device 10 of the present invention comprises an outer sheath member 100 and an inner sheath member 200, wherein the inner sheath member 200 is movably disposed in the outer sheath member 100. The distal end of the outer sheath member 100 is detachably connectable with the first connector 83 of the implantable device 8. The distal end of the inner sheath member 200 can be detachably connected with the second connector 84 of the implantable device 8.

In one embodiment, the distal end of the outer sheath member 100 and the first connector 83 may be a male-female connection or a circumferential rotational connection. When a circumferential rotational connection, a threaded connection may be used. The distal end of the inner sheath member 200 may be a male-female connection or a circumferential rotation connection with the second connector 84. When a circumferential rotational connection, a threaded connection may be used.

As shown in fig. 4, fig. 4 is a schematic view of an outer sheath member 100 according to an embodiment of the present invention. The outer sheath member 100 includes an outer sheath handle 1 and an outer sheath tube assembly 2. At least part of the outer sheath tube assembly 2 is disposed distal to the outer sheath handle 1. The sheath handle 1 and the sheath tube assembly 2 each form a cavity between the proximal and distal ends, the two cavities being in communication. The sheath handle 1 is operable by an operator to move the sheath assembly 2, for example to impart a circumferential rotational motion and/or an axial movement to the sheath assembly 2. The outer sheath tube assembly 2 comprises an outer sheath tube 21 and an outer conductive head 22, the outer conductive head 22 being arranged at a distal end of the outer sheath tube 21 for connection with a first connector 83. The connection mode of the outer conductive head 22 and the first connecting member 83 may be a plug connection or a circumferential rotation connection. When an operator operates the sheath handle 1, the sheath tube assembly 2 can be driven to do synchronous motion.

As shown in fig. 5, fig. 5 is a schematic view of an inner sheath member 200 according to an embodiment of the present invention. The inner sheath member 200 includes an inner sheath handle 4 and an inner sheath tube assembly 5. At least part of the inner sheath tube assembly 5 is disposed distal to the inner sheath handle 4, and the inner sheath tube assembly 5 is disposed through the two cavities of the outer sheath member 100. The inner sheath handle 4 is used for an operator to operate so as to drive the inner sheath tube assembly 5 to perform synchronous motion, for example, to drive the inner sheath tube assembly 5 to perform circumferential rotation motion and/or axial movement. The inner sheath tube assembly 5 comprises an inner sheath hose 51 and an inner conductive head 52, the inner conductive head 52 being disposed at a distal end of the inner sheath hose 51 for connection with a second connector 84. The inner conductive head 52 and the second connecting member 84 can be connected by a plug connection or a circumferential rotation connection. When an operator operates the inner sheath handle 4, the inner sheath tube assembly 5 can be driven to move.

With continued reference to fig. 3, at least a portion of the inner sheath handle 4 is exposed from the outer sheath handle 1. By manipulating the inner sheath handle 4, the inner sheath member 200 can be moved in a circumferential and/or axial direction relative to the outer sheath member 100 to disengage the inner sheath member 200 from the second connector 84 of the implantable device 8.

In the present embodiment, the inner sheath handle 4 and the outer sheath handle 1 are provided at intervals in the axial direction. In other words, the inner sheath handle 4 is completely exposed to the outer sheath handle 1. The inner sheath handle 4 and the outer sheath handle 1 are arranged at intervals in the axial direction, so that the inner sheath handle 4 and the outer sheath handle 1 do not have an overlapping structure in the radial direction, and the size of the outer sheath handle 1 in the radial direction is reduced. In addition, the inner sheath handle 4 is completely exposed from the outer sheath handle 1, so that the operator can operate the inner sheath handle 4 conveniently, for example, the inner sheath handle 4 is operated to realize axial movement and/or circumferential rotation.

The outer sheath handle 1 and the inner sheath handle 4 are arranged in sequence along the axial direction and are used for receiving the operation of an operator. The operator can hold the outer sheath handle 1 with one hand and the inner sheath handle 4 with the other hand, and the operator can operate the inner sheath handle 4 to generate relative movement in the axial direction or the circumferential direction relative to the outer sheath handle 1 so as to control the corresponding relative movement of the inner sheath tube assembly 5 and the outer sheath tube assembly 2.

Of course, in some embodiments, the distal end of the inner sheath handle 4 may be hidden within the outer sheath handle 1, while the proximal end of the inner sheath handle 4 is exposed at the outer sheath handle 1. The operator can manipulate the proximal end of the inner sheath handle 4 to drive the inner sheath member 200 in an axial and/or circumferential motion.

An inner sheath handle 4 is provided at the proximal end of the delivery device 10, and the inner sheath tube assembly 5 is capable of being moved proximally from the cavity of the outer sheath member 100 until it is completely detached from the outer sheath member 100 by the inner sheath handle 4. In other words, the inner sheath member 200 can be axially moved in an unlimited length relative to the outer sheath member 100 in the axial direction, so that the inner sheath member 200 can be completely disengaged from the outer sheath member 100. By such a design, subsequent rotational disengagement of the outer sheath member 100 from the implantable device 8 is facilitated, and resistance from the inner sheath handle 4 and the inner sheath tube assembly 5 passing proximally through the outer sheath handle 1 is avoided during rotational disengagement of the outer sheath member 100 from the implantable device 8.

Specifically, when the inner sheath member 200, the outer sheath member 100 and the implantable device 8 are disengaged, the following can be used: after the inner conductive tip 52 of the inner sheath member 200 is disengaged from the second connector 84, the inner sheath member 200 is directly withdrawn from the patient, i.e., the inner sheath member 200 is completely disengaged from the outer sheath member 100. The outer conductive tip 22 of the outer sheath member 100 is then disengaged from the first connector 83. During the disengagement of the outer sheath member 100 from the first connecting member 83, since the inner sheath member 200 has been completely disengaged from the outer sheath member 100, the inner sheath member 200 does not affect the rotational movement of the outer sheath member 100 during the rotational disengagement of the outer sheath member 100, so that the rotational disengagement of the outer sheath member 100 is facilitated.

Of course, the advantage of the complete detachment of the inner sheath member 200 from the outer sheath member 100 is equally applicable to the connection of the outer sheath member 100 to the first connector 83 by insertion and removal.

In other embodiments, the inner sheath member 200, the outer sheath member 100, and the implantable device 8 are disengaged, and the following disengagement may be used: the inner conductive tip 52 of the inner sheath member 200 is disengaged from the second connector 84 before moving the inner sheath member 200 proximally until the inner sheath member 200 moves inside the outer sheath member 100. The outer conductive tip 22 of the outer sheath member 100 is then disengaged from the first connector 83, and finally the inner sheath member 200 is withdrawn from the patient along with the outer sheath member 100.

The utility model discloses conveyor 10, including outer sheath member 100 and interior sheath member 200, outer sheath member 100 includes outer sheath handle 1 and the outer sheath pipe assembly 2 of being connected with outer sheath handle 1, and interior sheath member 200 includes interior sheath handle 4 and the interior sheath pipe assembly 5 of being connected with interior sheath handle 4. The outer sheath handle 1 can be operated by an operator to drive the outer sheath tube assembly 2 to move, and the inner sheath handle 4 can be operated by the operator to drive the inner sheath tube assembly 5 to move. Through the design that at least part of the inner sheath handle 4 is exposed out of the outer sheath handle 1, an operator can directly operate the inner sheath handle 4, so that the movement of the inner sheath tube assembly 5 is independently controlled, the handle structure is simplified, and the operation of the operator is facilitated.

As shown in fig. 6 to 8, fig. 6 is a partial sectional view of a conveying device 10 according to an embodiment of the present invention. Fig. 7 shows a schematic view of the locking member 6 according to an embodiment of the present invention. Fig. 8 shows a cross-sectional view of the locking member 6 according to an embodiment of the present invention. The delivery device 10 further comprises a locking member 6, the locking member 6 being connected between the outer sheath handle 1 and the inner sheath tube assembly 5, the locking member 6 being reciprocally transformable between a locked state and an unlocked state. In the unlocked state, the outer sheath member 100 and the inner sheath member 200 are able to move relative to each other, and in the locked state, the locking member 6 deforms and clamps the inner sheath tube assembly 5, thereby preventing the relative movement of the inner sheath member 200 and the outer sheath member 100.

When the locking member 6 is in the locked state, the relative movement of the inner sheath member 200 and the outer sheath member 100 can be prevented, and the operator can be prevented from erroneously operating the inner sheath member 200 at the time of delivery and release of the implantable device 8.

It will be appreciated that the prevention of relative movement of the inner sheath member 200 and the outer sheath member 100 includes circumferential movement and axial movement.

In one embodiment, a portion of the locking member 6 is disposed in the cavity of the outer sheath handle 1 and the inner sheath tube assembly 5 is disposed through the locking member 6.

As shown in fig. 7 and 8, the locking member 6 includes a first locking tube 61, a second locking tube 62, a pressing piece 63, and a clamp 64. The first locking tube 61 is axially movably disposed in the cavity of the outer sheath handle 1, and the inner sheath tube assembly 5 is disposed through the first locking tube 61. The second locking tube 62 is fixed in the axial direction and is rotatably connected to the sheath handle 1 in the circumferential direction, and the second locking tube 62 is used for driving the first locking tube 61 to move relative to the second locking tube 62 in the axial direction of the first locking tube 61. As an example, the outer periphery of the second locking tube 62 may be convexly provided with two first limiting portions arranged at intervals along the axial direction, the inner wall of the cavity of the sheath handle 1 is provided with two second limiting portions arranged at intervals along the axial direction, and the two second limiting portions are respectively stopped by the two first limiting portions, so that the two second limiting portions limit the displacement of the second locking tube 62 along the axial direction.

The presser 63 is provided on the first locking tube 61, the second locking tube 62 or the sheath handle 1. The clamping piece 64 is arranged on the first locking pipe 61 and/or the second locking pipe 62, and in the process that the second locking pipe 62 rotates to drive the first locking pipe 61 to move relative to the second locking pipe 62 along the axial direction of the first locking pipe 61, the clamping piece 64 is at least extruded by the extrusion piece 63 in the radial direction to be deformed so as to clamp the inner sheath pipe assembly 5.

In this embodiment, the gripping member 64 is disposed at the proximal end of the first locking tube 61 and the pressing member 63 is disposed at the second locking tube 62. When the second locking tube 62 is rotated, the first locking tube 61 can be brought to move proximally and axially relative to the second locking tube 62 along the first locking tube 61, so that the holding member 64 gradually approaches the pressing member 63. When the holding member 64 and the pressing member 63 are in contact, the holding member 64 is deformed by the pressing member 63 at least in the radial direction to hold the inner sheath tube assembly 5. Further, the clamping member 64 is integrally formed with the first locking tube 61, and the pressing member 63 is integrally formed with the second locking tube 62. It is understood that in alternate embodiments, the clamp member 64 and the first locking tube 61 may not be integrally formed, such as removably attached; the presser 63 and the second locking tube 62 may not be integrally formed, and may be detachably connected, for example.

Of course, in some embodiments, the extrusion 63 may also be provided on the sheath handle 1 when the grip 64 is provided on the first locking tube 61. For example, the holding member 64 is provided at the distal end of the first locking tube 61, and the pressing member 63 is provided protruding from the inner wall surface of the cavity of the outer sheath handle 1. When the second locking tube 62 rotates, the first locking tube 61 can be driven to move relative to the second locking tube 62 along the axial direction of the first locking tube 61 and to the far end, so that the clamping piece 64 gradually approaches the extrusion piece 63, and when the clamping piece 64 contacts the extrusion piece 63, the clamping piece 64 is at least extruded by the extrusion piece 63 in the radial direction to generate deformation so as to clamp the inner sheath tube assembly 5.

Further, in some embodiments, the clamp 64 may be disposed at the second locking tube 62 and the pressing member 63 may be disposed at the first locking tube 61. The first locking pipe 61 is sleeved on the periphery of the second locking pipe 62. When the second locking pipe 62 rotates, the first locking pipe 61 can be driven to move along the axial direction, and finally the clamping piece 64 is at least extruded by the extrusion piece 63 in the radial direction to deform so as to clamp the inner sheath pipe assembly 5.

It will be appreciated that when the clamp member 64 is disposed on the second locking tube 62, the expression member 63 may be disposed on the distal end of the first locking tube 61.

Of course, in some embodiments, the clamp 64 is detachably connected between the first and

second locking tubes

61 and 62, and the first and

second locking tubes

61 and 62 are integrally formed with the pressing member 63. The first and

second locking pipes

61 and 62 are threadedly coupled. A portion of the clamp member 64 extends into the first locking tube 61 and a portion of the clamp member 64 extends into the second locking tube 62. The holder 64 has a bore through its proximal and distal ends through which the inner sheath tube assembly 5 is threaded. When the first locking tube 61 is moved proximally relative to the second locking tube 62 in the axial direction of the first locking tube 61, the clamping member 64 is pressed together by the pressing members 63 on the first locking tube 61 and the second locking tube 62, so that the clamping member 64 is deformed by the pressing members 63 at least in the radial direction to clamp the inner sheath tube assembly 5.

It will be appreciated that the clip 64 may be formed from a resilient material. Further, the holding member 64 is an elastic member that is elastically bent and deformed in the radial direction when pressed in the radial direction, and the elastic member is made of, for example, rubber, but not limited thereto. The retainer 64 may also be made of a copper material to improve the wear resistance of the retainer 64.

It should be noted that the clamping member 64 may be integrally disposed on the first locking tube 61, and the clamping member 64 may be integrally disposed on the second locking tube 62. For example, the clamp 64 is integrally provided at the proximal end of the first locking tube 61, and the clamp 64 is integrally provided at the distal end of the second locking tube 62.

The pressing member 63 may be integrally provided on the first locking tube 61, the pressing member 63 may be integrally provided on the second locking tube 62, and the pressing member 63 may be integrally provided on the sheath handle 1.

Of course, the clamp 64 may also be detachably connected to the first locking tube 61 or the second locking tube 62. The presser 63 may also be detachably attached to the first locking tube 61, the second locking tube 62 or the sheath handle 1.

The first and

second locking pipes

61 and 62 may be screw-coupled. The first locking pipe 61 has an external thread, the second locking pipe 62 has an internal thread, and the second locking pipe 62 is sleeved on the periphery of the first locking pipe 61 and is in threaded connection. In some embodiments, the first locking tube 61 has an internal thread, the second locking tube 62 has an external thread, and the first locking tube 61 is sleeved on the outer circumference of the second locking tube 62 and is connected with the thread. In some embodiments, the first locking tube 61 and the second locking tube 62 are slidably connected to the guide rail through obliquely arranged guide grooves.

With continued reference to fig. 6 to 8, the second locking tube 62 includes a first tube section 621, and the first locking tube 61 is disposed through the first tube section 621. The inner wall surface of the first pipe section 621 may have an internal thread, the outer circumference of the first locking pipe 61 has an external thread, and the first locking pipe 61 is inserted into the first pipe section 621 and threadedly coupled with the first pipe section 621.

The presser 63 is provided at the proximal end of the first pipe segment 621 and extends obliquely toward the axial direction of the second locking pipe 62, i.e., the proximal end of the presser 63 extends toward the inner space of the second locking pipe 62. Since the pressing member 63 extends obliquely toward the inside of the second lock tube 62, when the first lock tube 61 moves proximally in the axial direction thereof, the clamping member 64 is pressed by the pressing member 63 to be deformed at least in the radial direction, thereby clamping the inner sheath tube assembly 5.

The inner wall surface of the pressing member 63 has a first sliding surface 631, and the radial dimension of the proximal end of the first sliding surface 631 is smaller than the radial dimension of the distal end thereof, i.e., the proximal portion of the first sliding surface 631 is convergent for sliding engagement with the proximal end of the holding member 64 and presses the holding member 64 at least in the radial direction.

In the present embodiment, the radial dimension of the first sliding surface 631 gradually decreases from the distal end to the proximal end, so that the clamping member 64 can achieve a better sliding fit with the first sliding surface 631, and the clamping member 64 is deformed at least in the radial direction during the sliding fit between the clamping member 64 and the pressing member 63. The tapered radial dimension of the first sliding surface 631 further facilitates the radial deformation of the clamping member 64.

The proximal end of the clamping member 64 has a second sliding surface 641, and the second sliding surface 641 is configured to be in sliding fit with the first sliding surface 631, such that at least the first sliding surface 631 can press the second sliding surface 641 in the radial direction, so as to deform the clamping member 64 to clamp the inner sheath tube assembly 5.

It is understood that the first sliding surface 631 and the second sliding surface 641 may be flat or curved. For example, the first sliding surface 631 and the second sliding surface 641 may be both flat surfaces, may be both curved surfaces, or may be one flat surface and the other curved surface.

In the present embodiment, the first sliding surface 631 and the second sliding surface 641 are both tapered surfaces.

In some embodiments, in the locked state, the first sliding surface 631 and the second sliding surface 641 are disengaged from each other, and the second sliding surface 641 moves to the proximal end of the first sliding surface 631. In some embodiments, the first sliding surface 631 and the second sliding surface 641 abut each other in the locked state.

Second locking tube 62 further includes a second tube segment 622, second tube segment 622 being disposed at the proximal end of expression member 63. That is, from the distal end to the proximal end, the second locking tube 62 includes, in order, a first tube segment 621, a pressing member 63, and a second tube segment 622. The locking member 6 further comprises a knob 65, the knob 65 being fixedly connected to the second locking tube 62 and being exposed at the sheath handle 1. The knob 65 is exposed to the sheath handle 1 for receiving a circumferential rotation operation of an operator.

Referring to fig. 7 and 8, the proximal end of the first locking tube 61 is provided with a clamping member 64, the distal end of the first locking tube 61 is provided with a limiting portion 611, and the limiting portion 611 is cylindrical so as to facilitate the inner sheath tube assembly 5 to pass therethrough. The limiting portion 611 is shaped like a square frame on a cross section perpendicular to the axial direction, and includes a top wall and a bottom wall which are oppositely arranged, and two side walls which are oppositely arranged and connected between the top wall and the bottom wall. The two side walls are used for being matched with the sheath handle 1 in a limiting way, so that the first locking tube 61 can only move along the axial direction of the first locking tube and can not rotate along the circumferential direction. In other embodiments, the top and bottom walls are adapted to engage with the sheath handle 1 in a limited manner such that the first locking tube 61 can only move axially thereof and cannot rotate circumferentially.

The clamping member 64 is disposed at the proximal end of the first locking tube 61 and includes a plurality of circumferentially spaced-apart clamping jaws 642, with a gap between adjacent clamping jaws 642 in the circumferential direction. The proximal ends of the plurality of jaws 642 are deformed toward each other by the squeezing action of the squeezing member 63 to grip the inner sheath tube assembly 5. The second sliding surface 641 is disposed on the outer side of the proximal end of the clamping jaw 642.

As shown in fig. 4 and 9, fig. 9 shows a partial cross-sectional view of an outer sheath member 100 according to an embodiment of the present invention. The sheath handle 1 comprises an outer handle shell 11 and a first injection connector 12, the outer handle shell 11 encloses a cavity of the sheath handle 1, and the first injection connector 12 is arranged in the cavity of the sheath handle 1 and is communicated with the near end of the sheath tube assembly 2. The outer handle shell 11 includes a sheath interface portion 111, the sheath interface portion 111 is formed with a first opening 112, a cavity in the sheath handle 1 extends to the sheath interface portion 111 and penetrates to the first opening 112, the first injection connector 12 is disposed in the sheath interface portion 111, and is exposed on the surface of the outer handle shell 11 through the first opening 112 for connecting with a first injection device (not shown in the figure), and the first injection device provides liquid to the outer sheath tube assembly 2 through the first injection connector 12. It is understood that the first injection device provides a fluid including, but not limited to, saline, contrast media, or other drugs.

The sheath handle 1 further includes a first conductive connector 13, the first conductive connector 13 is disposed in a cavity of the sheath handle 1, specifically, disposed in the sheath interface 111 and electrically connected to the sheath tube assembly 2, the first conductive connector 13 is exposed on the surface of the sheath handle 1 through a first opening 112 for connecting to a first external power source (not shown), and the first external power source provides power to the sheath tube assembly 2 through the first conductive connector 13. It will be appreciated that electrical energy provided by the first external power source can be transferred to the first connector 83 of the implantable device 8.

The sheath connecting port 111 is protruded from the outer wall of the outer handle case 11, the first opening 112 is provided at an end of the sheath connecting port 111 away from the outer handle case 11, a protruding direction of the sheath connecting port 111 is inclined with respect to an axis of the outer handle case 11, and the first opening 112 faces a proximal end of the outer handle case 11.

The sheath connecting port 111 is provided to protrude from the outer wall of the outer handle case 11, and thus the problem of insufficient volume of the cavity of the sheath handle 1 can be solved. Furthermore, the sheath interface portion 111 is disposed obliquely with respect to the axis of the outer handle housing 11 and the first opening 112 faces the proximal end of the outer handle housing 11, which facilitates the operator to insert the first injection device. As shown in fig. 10 to 12, fig. 10 is a schematic view of a first filling connector 12 according to an embodiment of the present invention. Fig. 11 is an exploded view of the first filling joint 12 according to the embodiment of the present invention. Fig. 12 shows a cross-sectional view of the first filling connector 12 according to an embodiment of the present invention. The utility model discloses first notes liquid connects 12 includes valve body 14 and opens and close subassembly 15, and valve body 14 forms receiving channel 141 and fluid channel 142, and receiving channel 141 communicates with first opening 112 for receive first injection device's injection end, fluid channel 142 and outer sheath pipe assembly 2 intercommunication. The opening and closing assembly 15 is formed with a notch 151, the notch 151 penetrates through two opposite side surfaces of the opening and closing assembly 15 in the thickness direction, the opening and closing assembly 15 is arranged between the receiving channel 141 and the fluid channel 142, the injection end of the first injection device is used for passing through the notch 151 along the receiving channel 141 to enter the fluid channel 142, and injecting liquid into the fluid channel 142, and the liquid flows through the fluid channel 142 to enter the inner cavity of the outer sheath tube assembly 2.

It can be understood that the first injection connector 12 of the embodiment of the present invention is disposed in the cavity of the sheath handle 1, the receiving channel 141 of the first injection connector 12 can receive the injection end of the first injection device, and the injection end can pass through the notch 151 along the receiving channel 141 and enter the fluid channel 142, so that the liquid of the first injection device passes through the notch 151 along the receiving channel 141 and enters the fluid channel 142, and finally enters the inner cavity of the sheath tube assembly 2. Compared with the mode of supplying liquid to the outer sheath assembly 2 by adopting an external three-way valve in the related art, the first liquid injection joint 12 of the embodiment is integrated in the sheath handle 1, so that the integration level of the sheath handle 1 is improved, and the circumferential rotation motion of the sheath member 100 is facilitated.

The opening and closing assembly 15 includes an elastic pad 15a, and the pad 15a is formed with a slit 151. In one embodiment, the cut 151 may be "cross" shaped. When the injection end of the first injection device is inserted into the incision 151, the incision 151 is opened, and the liquid flowing out of the injection end can flow out of the first filling connector 12 through the fluid channel 142. The slit 151 is closed in a natural state, and the receiving passage 141 and the fluid passage 142 are isolated by the gasket 15 a.

When the incision 151 is opened, the first priming connector 12 is able to receive liquid from the first injection device. When the slit 151 is closed, the receiving channel 141 and the fluid channel 142 are isolated by the gasket 15a, ensuring the sealing property of the outer sheath member 100, and preventing the external air from entering the outer sheath tube assembly 2 from the first fluid injection connector 12.

The valve body 14 includes a first seat 143 and a second seat 144, and the first seat 143 is detachably connected to the second seat 144. The first receiving body 143 is formed with a receiving passage 141, the second receiving body 144 includes a passage portion 145 and a connection portion 146 connected to each other, the connection portion 146 is detachably connected to the first receiving body 143, and the passage portion 145 and the connection portion 146 are formed with a fluid passage 142. The opening and closing assembly 15 is clamped between the first seat 143 and the second seat 144.

In an embodiment, the connecting portion 146 and the first seat 143 may be connected by a screw, for example, the outer circumference of the connecting portion 146 has an external thread, and the inner wall of the first seat 143 has an external thread. Of course, the connecting portion 146 may be sleeved on the outer periphery of the first seat 143.

Through the design of the screw connection between the connection portion 146 and the first seat 143, the first seat 143 and the second seat 144 can be easily assembled and disassembled, so as to facilitate assembly and replacement of the gasket 15 a. In other embodiments, the connection portion 146 and the first base 143 are not limited to being connected by a screw, such as at least one of snapping, bonding, and the like.

The position of the connecting portion 146 facing the receiving channel 141 forms a receiving groove 147 recessed in a direction away from the receiving channel 141, the opening and closing assembly 15 covers an opening of the receiving groove 147, the receiving groove 147 is used for receiving the injection end of the first injection device, and the bottom surface of the receiving groove 147 forms an abutment surface 1471 for abutting the injection end. The receiving channel 141 is a constant diameter channel, the fluid channel 142 is a constant diameter channel, the radial dimension of the channels at different axial positions is the same, and the injecting end of the first injecting device can abut against the abutting surface 1471 through the receiving channel 141 and the fluid channel 142.

After the injection end of the first injection device is inserted into the first injection connector 12, the injection end can be abutted against the abutting surface 1471 of the accommodating groove 147 after passing through the notch 151, and after the injection end is abutted against the abutting surface 1471, an operator knows that the injection end is inserted into the position, so that the operation hand feeling of the operator is improved.

As shown in fig. 12 and 13, fig. 13 is a schematic view of a second seat 144 according to an embodiment of the present invention. The abutting surface 1471 is formed with a guide groove 148 recessed in a direction away from the opening/closing member 15, and the guide groove 148 is communicated with the fluid passage 142. After the injection end of the first injection device abuts the abutment surface 1471 of the receiving groove 147, the liquid can flow into the fluid passageway 142 through the diversion groove 148. The design of the diversion trench 148 facilitates the liquid flow, and prevents the abutting surface 1471 from obstructing the liquid flow into the fluid passage 142.

In one embodiment, the shape of the guiding slot 148 may be, but is not limited to, a cross shape.

As shown in fig. 6, 9 and 14, fig. 14 is a schematic view illustrating that the two ends of the connecting tube 17 of the embodiment of the present invention are respectively connected to the outer sheath connector 16 and the first injection connector 12. The sheath handle 1 further comprises a sheath connector 16 and a connecting tube 17. The outer sheath fitting 16 is disposed in the cavity of the outer handle housing 11 and is generally tubular in shape as a whole. The outer sheath connector 16 has a main channel 161 and a branch channel 162 communicating with each other, the proximal end of the outer sheath tube assembly 2 is connected to the distal end of the outer sheath connector 16 and communicates with the main channel 161, and the inner sheath tube assembly 5 is inserted through both ends of the main channel 161. The connection pipe 17 has one end communicating with the fluid passage 142 and the other end communicating with the branch passage 162.

Outer sheath hub 16 includes a tip 167, an intermediate member 168, and a base 169. Tip 167, intermediate member 168, and base 169 are removably connected in series from the distal end to the proximal end, such that tip 167 is threadably connected to one end of intermediate member 168 and the other end of intermediate member 168 is threadably connected to base 169.

The proximal end of the sheath tubing 21 is fixedly attached in the sheath fitting 16. As an example, the proximal end of the sheath hose 21 is fixed between the tip 167 and the intermediate member 168, and specifically, during the assembly process of the sheath hose 21, the tip 167 and the intermediate member 168, the proximal end of the sheath hose 21 is inserted into the through hole of the proximal end of the tip 167, and the proximal end of the sheath hose 21 is flared, so that the proximal end of the sheath hose 21 is deformed into a cone shape and is matched with the hole wall shape of the through hole of the proximal end of the tip 167, and then the intermediate member 168 is assembled with the tip 167, so that the proximal end of the sheath hose 21 in the cone shape is clamped between the hole wall of the through hole of the tip 167 and the distal end of the intermediate member 168.

The outer sheath hub 16 further includes a resilient seal 165, the seal 165 being disposed at the proximal end of the outer sheath hub 16, e.g., sandwiched between the proximal end of the intermediate member 168 and a base 169. The sealing member 165 is provided with an opening 166 for passing the inner sheath tube assembly 5 in the axial direction, and for example, the opening 166 may pass the reinforcing tube 54 and the inner sheath hose 51.

As an example, the outer sheath connector 16 is used to communicate the first injection connector 12 with the outer sheath tube assembly 2, and also to seal the proximal end of the outer sheath tube assembly 2 by providing a seal 165.

In this embodiment, the tip 167 and the intermediate member 168 are designed as a detachable and separable structure, which facilitates the assembly of the proximal end of the outer sheath tube 21. The intermediate member 168 and the base 169 are designed as a detachable and separable structure to facilitate assembly of the sealing member 165.

The outer sheath fitting 16 includes a main conduit 163 and a branch conduit 164. The main pipe 163 forms a main passage 161, the distal end of the main pipe 163 is connected to the proximal end of the outer sheath hose 21, and the inner sheath tube assembly 5 is inserted through the main pipe 163. The branch pipe 164 forms the branch passage 162 and is connected to the main pipe 163. The axis of the branch pipe 164 is inclined from the axis of the main pipe 163, and one end of the branch pipe 164 away from the main pipe 163 extends toward the proximal end of the main pipe 163.

The axial line of the branch pipe 164 and the axial line of the main pipe 163 are obliquely arranged, and the branch pipe 164 extends towards the near end of the main pipe 163, so that the distance between the two ends of the connecting pipe 17 is increased and the curvature and the length of the connecting pipe 17 are reduced after the two ends of the connecting pipe 17 are respectively connected with the branch pipe 164 and the channel portion 145 of the first liquid injection joint 12.

The liquid provided by the first injection device flows through the first injection connector 12, the connecting tube 17, the branch tube 164, the main tube 163, and the proximal end of the outer sheath tube assembly 2 in sequence, and then reaches the distal end of the outer sheath tube assembly 2.

In this embodiment, the main conduit 163 of the sheath connector 16 may be formed by the tip 167, the intermediate member 168 and the base 169, and the branch conduit 164 may be formed in the intermediate member 168.

With continued reference to fig. 10, 12 and 14, the axis of the fluid passageway 142 and the axis of the receiving passageway 141 are offset such that the outer wall of the passageway portion 145 forms an escape space 149 recessed toward the axis of the fluid passageway 142 relative to the outer wall of the connecting portion 146. The sheath hub 16 and/or the sheath tube assembly 2 pass through the escape space 149, avoiding the channel portion 145 from interfering with the sheath hub 16 and/or the sheath tube assembly 2.

In the present embodiment, by the design that the axis of the fluid channel 142 and the axis of the receiving channel 141 are staggered from each other, on one hand, the channel portion 145 and the outer wall of the connecting portion 146 together form an avoidance space 149 with a large space, and the avoidance space 149 is used for the outer sheath connector 16 and/or the outer sheath tube assembly 2 to pass through, so that the integration level of the outer sheath handle 1 can be further improved, the volume in the outer handle housing 11 can be effectively utilized, and the size of the outer sheath handle 1 can be reduced; on the other hand, the channel 145 of the first injection connector 12 is away from the branch channel 164 of the outer sheath connector 16, so that the bending curvature and length of the connection tube 17 can be adjusted.

As shown in fig. 14, the sheath handle 1 further includes a positioning structure 18, and the positioning structure 18 is disposed on an inner wall of the cavity of the sheath handle 1 and located at the proximal end of the sheath handle 1 to position the connection tube 17 at the proximal side of the sheath handle 1.

In one embodiment, the positioning structure 18 may include a positioning post 181 and a positioning frame 182. The positioning frame 182 is closer to the proximal end than the positioning post 181. A section of the connecting tube 17 (in the figure, a middle portion thereof) is positioned between the positioning column 181 and the positioning frame 182.

It should be noted that the positioning frame 182 extends from the inner wall of the outer handle casing 11 to the inside of the outer handle casing 11, and a positioning cavity 183 is further formed, and the positioning cavity 183 is shaped like a square frame and is used for limiting the circumferential movement of the limiting part 611 (specifically, two side walls thereof) of the first locking tube 61. Specifically, the stopper portion 611 of the first lock pipe 61 is disposed in the positioning cavity 183, and the stopper portion 611 is only movable in the axial direction with respect to the positioning frame 182, and is not rotatable in the circumferential direction.

As shown in fig. 5 and 15, fig. 15 is a partial sectional view of an inner sheath member 200 according to an embodiment of the present invention. The inner sheath handle 4 includes an inner handle housing 41 and a second infusion connector 42, the second infusion connector 42 being disposed within the inner handle housing 41 and communicating with the proximal end of the inner sheath tube assembly 5. The inner handle housing 41 includes an inner sheath interface portion 411, the inner sheath interface portion 411 is formed with a second opening 412, and the second liquid injection connector 42 is exposed on the surface of the inner handle housing 41 through the second opening 412 for connecting with a second injection device (not shown in the figure) for supplying liquid to the inner sheath assembly 5. The liquid provided by the second injection device includes, but is not limited to, saline, contrast medium, or other drugs.

In one embodiment, the second injection device may be connected to the second priming connection 42 through a three-way valve 44.

The inner sheath handle 4 further comprises a tubular guide wire port 45, and the guide wire port 45 is communicated with the inner cavity of the inner sheath tube assembly 5. One end of the guide wire port 45 is exposed on the surface of the inner sheath handle 4, and a guide wire can pass through the guide wire port 45 and enter the inner cavity of the inner sheath tube assembly 5 through the guide wire port 45.

The second filling connector 42 includes a first channel 421 and a second channel 422 which are communicated with each other. The proximal end of the first passage 421 communicates with the guidewire port 45 and the distal end of the first passage 421 communicates with the lumen of the inner sheath tube assembly 5. The proximal end of the second passage 422 communicates with the three-way valve 44, and the distal end of the second passage 422 communicates with the first passage 421. The axis of the first channel 421 and the axis of the second channel 422 are obliquely arranged, and the proximal end of the second channel 422 extends to the proximal end of the first channel 421.

The inner sheath handle 4 further comprises a second conductive connector 43, the second conductive connector 43 is disposed in the inner handle casing 41 and electrically connected to the inner sheath tube assembly 5, the second conductive connector 43 is exposed on the surface of the inner sheath handle 4 through the second opening 412 for connecting to a second external power source (not shown), and the second external power source provides power to the inner sheath tube assembly 5 through the second conductive connector 43.

With continued reference to fig. 5, 6 and 15, the inner sheath tube assembly 5 includes an inner sheath hose 51, a stiffening tube 54 and a guide 53. The inner sheath hose 51 is threaded through the outer sheath member 100, and specifically, the inner sheath hose 51 is threaded through the outer sheath tube assembly 2, the outer sheath joint 16, and the lock member 6. The distal end of the inner sheath hose 51 extends beyond the distal end of the outer sheath tube assembly 2 and is connected to the second connector 84 of the implantable device 8, and the proximal end of the inner sheath hose 51 extends beyond the proximal end of the outer sheath handle 1 and is connected to the inner sheath handle 4. Meanwhile, the proximal end of the inner sheath hose 51 extends into the inner handle case 41 and is connected to the second liquid injection connector 42. The reinforcing tube 54 is fitted around the outer periphery of the inner sheath tube 51 and inserted into the outer sheath joint 16 of the outer sheath member 100. The distal end of the reinforcing tube 54 extends out of the sheath handle 1, and the distal end of the reinforcing tube 54 is connected with the guide sleeve 53. The guide sleeve 53 is threaded to the locking member 6 of the outer sheath member 100, and specifically, the guide sleeve 53 is threaded to the first locking tube 61 and the second locking tube 62 of the locking member 6. The clamp 64 is for clamping the outer periphery of the guide sleeve 53 when the lock member 6 is in the locked state. And the distal end of the guide sleeve 53 extends to the inner cavity of the outer sheath handle 1 and is sleeved on the periphery of the proximal end of the reinforcing tube 54, and the proximal end of the guide sleeve 53 extends out of the proximal end of the outer sheath handle 1 and is connected with the inner handle shell 41.

Wherein the hardness of the guide sleeve 53 is greater than that of the inner sheath hose 51. Since the clamp 64 clamps the guide sleeve 53 with a higher hardness and does not clamp the inner sheath tube 51 with a lower hardness, the guide sleeve 53 can protect the inner sheath tube 51 and prevent the inner sheath tube 51 from being clamped and deformed to influence the flow of the internal liquid.

In addition, the hardness of the reinforcing tube 54 is greater than that of the inner sheath hose 51, and the distal end of the guide sleeve 53 is fitted over the proximal end periphery of the reinforcing tube 54, so that the moment on the side of the inner sheath handle 4 is transmitted to the inner sheath hose 51 having a relatively low hardness.

The reinforcing tube 54 and the inner sheath tube 51 are both inserted into the opening 166 of the sealing member 165 of the outer sheath connector 16, and since the reinforcing tube 54 is fitted around the outer periphery of the inner sheath tube 51, the outer wall of the reinforcing tube 54 is in direct contact with the sealing member 165. The stiffening tube 54 has a higher stiffness than the inner sheath tube 51, so that the position where the stiffening tube 54 is connected to the outer sheath connector 16 is reinforced, and the stiffening tube 54 protects the inner sheath tube 51 to prevent the sealing member 165 from pressing the inner sheath tube 51, damaging the structure of the inner sheath tube 51 and affecting the axial movement and circumferential rotation of the inner sheath tube 51.

It is understood that the various embodiments/implementations provided by the present invention can be combined without contradiction, and are not illustrated herein.

In the embodiments of the present invention, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the invention and is not intended to limit the same, and various modifications and changes may be made to the embodiment by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A conveyor apparatus, comprising:

an outer handle housing having a cavity and a first opening, the first opening communicating with the cavity;

the first liquid injection connector is at least partially arranged in the cavity and comprises a valve body and an opening and closing assembly, the valve body forms a receiving channel and a fluid channel, the receiving channel is communicated with the first opening and used for receiving an injection end of a first injection device, and the fluid channel is communicated with an outer sheath tube assembly; wherein the outer sheath tube assembly is arranged in the cavity in a penetrating way, and the distal end of the outer sheath tube assembly is used for connecting an implantable device; the opening and closing assembly is provided with a notch, the notch penetrates through two opposite side surfaces in the thickness direction of the opening and closing assembly, the opening and closing assembly is arranged between the receiving channel and the fluid channel, the injection end of the first injection device penetrates through the notch along the receiving channel to enter the fluid channel, liquid is injected into the fluid channel, and the liquid flows through the fluid channel to enter the inner cavity of the outer sheath tube assembly.

2. The delivery device of claim 1, wherein the valve body comprises:

the first base is provided with the receiving channel; and

the second seat body comprises a channel part and a connecting part, and the connecting part is detachably connected with the first seat body; the channel part and the connecting part form the fluid channel;

the opening and closing assembly is clamped between the first base body and the second base body.

3. The delivery device of claim 2, wherein the connecting portion is formed with a receiving groove recessed in a direction away from the receiving channel at a position opposite to the receiving channel, the opening and closing member covers an opening of the receiving groove, the receiving groove is configured to receive the injection end of the first injection device, and a bottom surface of the receiving groove is formed with an abutting surface configured to abut against the injection end.

4. The conveying device as claimed in claim 3, wherein the abutting surface is formed with a guide groove recessed in a direction away from the opening and closing member, and the guide groove is communicated with the fluid passage.

5. The conveying device as claimed in claim 2, wherein the outer wall of the passage portion forms an avoidance space recessed in the axial direction of the fluid passage with respect to the outer wall of the connecting portion;

the delivery device further comprises the outer sheath tube assembly and an outer sheath connector for connecting the fluid channel of the first fluid injection connector and the outer sheath tube assembly; the outer sheath hub and/or the outer sheath tube assembly passes through the avoidance space.

6. The delivery device of claim 5, wherein the axes of the fluid channel and the receiving channel are offset from one another.

7. The delivery device of claim 1, further comprising:

an outer sheath connector disposed in the cavity of the outer handle housing and having a main channel and a branch channel in communication with each other, a proximal end of the outer sheath tubing assembly being connected to a distal end of the outer sheath connector and in communication with the main channel; and

and one end of the connecting pipe is connected with the fluid channel, and the other end of the connecting pipe is communicated with the branch channel.

8. The delivery device of claim 7, wherein the outer sheath hub comprises:

a main conduit forming the main channel; the far end of the main pipeline is connected with the near end of the outer sheath pipe assembly; and

a branch pipe forming the branch passage and connected to the main pipe; the axis of the branch pipeline with the axis slope setting of trunk line, just the branch pipeline is kept away from the one end of trunk line to the near-end of trunk line extends.

9. The delivery device of claim 7, further comprising a positioning structure for positioning the connecting tube, the positioning structure being disposed on an inner wall of the cavity of the outer handle housing and at the proximal end of the outer handle housing.

10. The delivery device of claim 1, wherein the outer handle housing includes a sheath interface portion protruding from an outer wall of the outer handle housing, the first opening is disposed at an end of the sheath interface portion away from the outer handle housing, the cavity of the outer handle housing extends to the sheath interface portion and penetrates the first opening, and the first injection connector is disposed at the sheath interface portion and exposed to the surface of the outer handle housing through the first opening.

11. The delivery device of claim 10, wherein the sheath interface projects obliquely relative to the axis of the outer handle housing, the first opening being toward the proximal end of the outer handle housing.

12. A delivery device according to any of claims 1 to 11, wherein the opening and closing assembly comprises a resilient pad formed with the cut-out;

when the injection end of the first injection device is inserted into the incision, the incision is opened, and the liquid flowing out of the injection end can flow out of the liquid injection joint through the fluid channel;

the slit is naturally closed, and the receiving channel and the fluid channel are isolated by the gasket.

13. A medical instrument system, comprising:

an implantable device; and

the delivery device of any one of claims 1 to 12, for delivering and releasing the implantable device into a patient.