WO2023035783A1 - 输送系统 - Google Patents

输送系统 Download PDF

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Publication number
WO2023035783A1
WO2023035783A1 PCT/CN2022/106823 CN2022106823W WO2023035783A1 WO 2023035783 A1 WO2023035783 A1 WO 2023035783A1 CN 2022106823 W CN2022106823 W CN 2022106823W WO 2023035783 A1 WO2023035783 A1 WO 2023035783A1
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WO
WIPO (PCT)
Prior art keywords
tube assembly
implant
binding
trigger
inner tube
Prior art date
Application number
PCT/CN2022/106823
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English (en)
French (fr)
Inventor
任志超
刘群超
王丽文
杜京阳
袁振宇
苗铮华
Original Assignee
上海蓝脉医疗科技有限公司
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Application filed by 上海蓝脉医疗科技有限公司 filed Critical 上海蓝脉医疗科技有限公司
Publication of WO2023035783A1 publication Critical patent/WO2023035783A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/97—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the outer sleeve being splittable

Definitions

  • the present application relates to the technical field of medical devices, in particular to a delivery system.
  • Iliac vein compression syndrome is a relatively common disease in vascular surgical diseases.
  • Iliac vein compression syndrome refers to a syndrome in which the compression of the iliac artery leads to intraluminal adhesion, stenosis or occlusion, resulting in various clinical symptoms. Implanting stents and other implants into the iliac vein to support the diseased blood vessels is an effective treatment.
  • the surgery requires very precise placement of the implant.
  • the length of the implant will shorten as the implant expands, causing the implant to displace, resulting in the implant not being accurately released to the intended position , which in turn leads to the fact that the diseased blood vessel cannot be fully supported by the implant and there is still a narrow or blocked segment, which fails to achieve the intended therapeutic purpose.
  • the application provides a delivery system, comprising:
  • An outer tube assembly the outer tube assembly is sheathed outside the inner tube assembly, and the outer tube assembly and the inner tube assembly are configured to be able to move relative to each other in the axial direction. There is a space for placing an implant between the inner tube components;
  • the binding member is used for detachable connection with the implant, and the binding member has a binding state to fix at least part of the implant on the inner tube assembly and make the implant a released state in which the object is separated from the inner tube assembly;
  • a trigger piece is connected with the binding piece, and the trigger piece is used to drive the binding piece to change from the binding state to the releasing state.
  • the binding member is used for detachable connection with the first release end of the implant.
  • the binding member is fixed on the inner tube assembly, the binding member surrounds the implant in the binding state, and the binding member is connected to the
  • the trigger part is detachably connected, when the binding part is connected with the trigger part, the binding part is in the binding state, and when the binding part is separated from the trigger part, the binding part is in the disengaged state state.
  • one end of the binding member is fixedly connected to the inner tube assembly, and the other end of the binding member is used for detachably connecting with the triggering member after surrounding the implant.
  • the binding member includes a first part and a second part, one end of the first part and one end of the second part are both fixedly connected to the inner tube assembly, and the first part
  • the other end of the second part is used to go around a part of the implant and then be detachably connected to the trigger; the other end of the second part is used to go around another part of the implant and connect to the trigger
  • the trigger is detachably connected.
  • the conveying system further includes an activation assembly, the activation assembly is connected with the trigger member, and the activation assembly is used to drive the trigger member to move along the axial direction of the inner tube assembly, so as to causing the trigger to be separated from the binding.
  • the starting assembly includes a base and a starting piece detachably connected to the base, the base is connected to the inner tube assembly, the starting piece is connected to the triggering piece,
  • the activator has a fixed state fixed on the base and an active state capable of moving relative to the base, and in the active state, the activator can drive the trigger along the inner tube assembly axial movement.
  • the inner tube assembly is provided with a first limiting member and a second limiting member at intervals, and a limiting groove is formed between the first limiting member and the second limiting member , the binding member is located in the limiting groove in the binding state.
  • the first limiting member and/or the second limiting member are further provided with a limiting hole extending along the axial direction of the inner tube assembly, and the triggering member at least partially passes through It is arranged in the limiting hole, and the trigger member can move along the limiting hole.
  • one end of the inner tube assembly is provided with a conical head, and at least part of the trigger is inserted into the conical head.
  • the delivery system further includes an ejector tube assembly, the ejector tube assembly is arranged between the outer tube assembly and the inner tube assembly, and the ejector tube assembly and the outer tube
  • the components can cooperate in the axial direction so that the two can move in the opposite direction in the axial direction.
  • One end of the ejection tube assembly is used to abut against the implant, and the ejection tube assembly is used to push the implant objects push out of the outer tube assembly.
  • the conveying system further includes a threaded pipe, the threaded pipe is provided with a first external thread and a second external thread, and the direction of rotation of the first external thread is the same as that of the second external thread.
  • the direction of rotation is opposite, the outer pipe assembly is provided with a first internal thread matching with the first external thread, and the ejector pipe assembly is provided with a second internal thread matching with the second external thread.
  • the delivery system fixes at least part of the implant on the inner tube assembly through the binding member, so as to prevent the implant from being caused by reaction force or blood flow during the expansion process after release.
  • the implant displacement improves the positioning accuracy of the implant during release.
  • Fig. 1 is a partial schematic diagram of a delivery system of an embodiment
  • Fig. 2 is a diagram of the cooperation relationship between the binding member and the implant of the delivery system according to an embodiment
  • Fig. 3 is a diagram of the cooperation relationship between the binding member and the implant of the delivery system in another embodiment
  • FIG. 4 is a cross-sectional view of a delivery system of an embodiment
  • Fig. 5 is a schematic structural diagram of the starting assembly of the first embodiment
  • Fig. 6 is a schematic structural diagram of the starting assembly of the second embodiment
  • Fig. 7 is a schematic structural diagram of the starting component of the third embodiment.
  • Fig. 8 is a schematic structural diagram of a starting component of a fourth embodiment
  • Fig. 9 is a schematic structural diagram of the starting assembly of the fifth embodiment.
  • Fig. 10 is a schematic structural diagram of the starting component of the sixth embodiment.
  • an embodiment of the present application provides a delivery system for delivering and deploying an implant 30 to a diseased human tissue, so that the implant 30 replaces, repairs or supports the diseased human tissue.
  • the implant 30 includes a self-expanding implant 30, such as a self-expanding stent.
  • Self-expanding stents are generally prepared from shape memory alloys, which have the ability to recover from deformation.
  • the delivery system of an embodiment includes an inner tube assembly 20 , an outer tube assembly 10 , a binding member 40 and a trigger member 50 .
  • the outer tube assembly 10 is sleeved outside the inner tube assembly 20, and the outer tube assembly 10 and the inner tube assembly 20 are configured to be able to move relative to each other in the axial direction.
  • Space for receiving the implant 30 is disposed between the outer tube assembly 10 and the inner tube assembly 20, and the implant 30 has a compressed state being compressed between the outer tube assembly 10 and the inner tube assembly 20 and is compressed from the outer tube assembly 10 and the inner tube assembly.
  • the binding member 40 is used for detachable connection with the implant 30, and the binding member 40 has a binding state to fix the implant 30 on the inner tube assembly 20 and make the implant 30 and the inner tube
  • the trigger member 50 is connected to the binding member 40, and the trigger member 50 is used to drive the binding member 40 to change from the binding state to the releasing state.
  • the working process of the above-mentioned delivery system is: in the initial state, the implant 30 is compressed between the inner tube assembly 20 and the outer tube assembly 10, and at least part of the implant 30 is fixed inside by the binding member 40 Tube assembly 20. At this time, the implant 30 can be delivered to the predetermined position through the inner tube assembly 20 and the outer tube assembly 10. Thus, the implant 30 breaks away from the gap between the outer tube assembly 10 and the inner tube assembly 20.
  • the implant 30 begins to expand under its own self-expandability, because at least part of the implant 30 is bound by the binding member 40
  • the inner tube assembly 20 cannot be expanded, and the unconstrained part of the implant 30 begins to expand first, and during the expansion process, the relative position of the implant 30 and the inner tube assembly 20 is fixed by the binding member 40, avoiding the traditional implant.
  • the displacement of the implant 30 caused by the reaction force or blood flow during the expansion process of the implant 30.
  • the binding member 40 is driven by the trigger 50 to change from the binding state to the released state. At this time, the binding member 40 can no longer bind the implant.
  • the implant 30 is separated from the inner tube assembly 20 and begins to expand. When the implant 30 is fully expanded, it will anchor the diseased tissue. At this time, the outer tube assembly 10 and the inner tube assembly 20 can be withdrawn to complete the implantation. Delivery and deployment of objects 30.
  • the delivery system fixes at least part of the implant 30 on the inner tube assembly 20 through the binding member 40, so as to prevent the expansion of the implant 30 after the release due to the reaction force. Or the displacement of the implant 30 caused by the action of blood flow improves the positioning accuracy of the implant 30 during the release process.
  • the implant 30 has a release-first end protruding from between the outer tube assembly 10 and the inner tube assembly 20 during the release process, and the binding member 40 is detachably connected to the release-first end of the implant 30 .
  • the applicant has conducted a large number of image analysis and clinical test observations and found that during the release process of the traditional implant 30, due to the self-expandability of the implant 30, the implant 30 is released from the delivery device at the initial stage.
  • the part released from the center i.e. the first release end
  • starts to expand first and when the implant 30 is not fully released, the implant 30 still partially remains in the outer tube assembly 10, and the part released earlier presents a shape similar to that of a cone.
  • the shape of the outer tube assembly 10 will generate forces along the axial direction and the radial direction of the outer tube assembly 10, wherein the force along the axial direction of the outer tube assembly 10 will cause the implant 30 to be displaced during the release process important reason.
  • the first release end of the implant 30 can be bound on the inner tube assembly 20, so that the implant After the release end of the implant 30 is released from the outer tube assembly 10, it cannot be expanded first, but after the implant 30 is completely released from the outer tube assembly 10, the binding member 40 is driven from the binding state to the release state by the trigger 50 , so that the first release end of the implant 30 is released from the shackles, and at this time the first release end of the implant 30 begins to expand, avoiding the displacement phenomenon caused by the first release end of the implant 30 beginning to expand at the initial stage of being released, and further The positioning accuracy of the implant 30 during release is improved.
  • the binding member 40 is fixed on the inner tube assembly 20, the binding member 40 surrounds the implant 30 to bind the implant on the inner tube assembly 20, and the binding member 40 It is detachably connected with the trigger part 50 , when the binding part 40 is connected with the trigger part 50 , the binding part 40 is in a binding state, and when the binding part 40 is separated from the trigger part 50 , the binding part 40 is in a disengaged state.
  • the binding member 40 can be in the shape of a wire, one end of the binding member 40 is fixedly connected to the inner tube assembly 20, and the other end of the binding member 40 is connected to the implant 30 after a circle.
  • the trigger 50 is detachably connected.
  • the first release end of the implant 30 includes a plurality of struts, and one end of every two adjacent struts forms a V-shaped closed structure, that is, a barb structure, and the binding member 40 wraps around the implant 30.
  • the barb structure passing through the struts sequentially in order to improve the stability of the connection between the binding member 40 and the implant 30 .
  • the other end of the binding member 40 is provided with a connecting hole, so that the binding state of the binding member 40 can be maintained by passing the trigger member 50 into the connecting hole of the binding member 40 after the binding member 40 has circled the implant 30 once. .
  • the trigger member 50 is driven to move along the axial direction of the inner tube assembly 20 so that the trigger member 50 withdraws from the connection hole, thereby separating the binding member 40 from the trigger member 50, and the binding member 40 enters the release mode. state, the binding member 40 can no longer bind the first-release end of the implant 30, and the first-release end of the implant 30 is separated from the inner tube assembly 20 and begins to expand.
  • the binding member 40 includes a first part 41 and a second part 42, one end of the first part 41 and one end of the second part 42 are both fixedly connected to the inner tube assembly 20, the first part The other end of the second part 41 is detachably connected to the trigger 50 after winding around a part of the implant 30 ; the other end of the second part 42 is detachably connected to the trigger 50 after winding around another part of the implant 30 .
  • the first release end of the implant 30 includes a plurality of struts, and one end of every two adjacent struts forms a V-shaped closed structure, that is, a barb structure, and the first part 41 passes through all the middle branches of the struts in turn.
  • the barb structure of the rod is then detachably connected to the trigger member 50
  • the second part 42 is detachably connected to the trigger member 50 after sequentially passing through the barb structure of the rest of the rod.
  • the first part 41 is provided with a first connection hole
  • the second part 42 is provided with a second connection hole
  • the trigger part 50 is inserted in the first connection hole and the second connection hole at the same time, so as to maintain the binding of the binding part 40 state
  • the trigger member 50 is driven to move along the axial direction of the inner tube assembly 20 so that the trigger member 50 withdraws from the first connection hole and the second connection hole, so that the first part 41 and the second part 42 is separated, and now the binding member 40 enters the release state, the first part 41 and the second part 42 can no longer bind the first release end of the implant 30, and the first release end of the implant 30 is separated from the inner tube assembly 20 and starts Expansion, by configuring the binding member 40 as an independent first part 41 and a second part 42, while
  • the delivery system further includes an activation assembly 70
  • the trigger member 50 extends axially along the inner tube assembly 20 and is connected to the activation assembly 70 after protruding from the outer tube assembly 10
  • the activation assembly 70 is used to drive the trigger member 50 along the Axial movement of the inner tube assembly 20 disengages the trigger 50 from the binding 40
  • the activation assembly 70 includes a base 71 and an activation member 72 detachably connected to the base 71 , the base 71 is connected to the inner tube assembly 20 , so that the base 71 is relatively fixed.
  • the trigger 50 is connected to the trigger 72.
  • the trigger 72 has a fixed state fixed on the base 71 and an active state that can move relative to the base 71.
  • the trigger 72 can drive the trigger 50 along the inner tube assembly.
  • the base 71 and the starting member 72 there are many ways to connect the base 71 and the starting member 72. For example, as shown in FIG. Then pull the trigger 72 in the direction away from the base 71 to extract the trigger 50, so that the trigger 50 is separated from the binding member 40, so that the binding member 40 changes from the binding state to the release state, and then the implant 30 is released from the binding state. The state of being bound by the binding member 40 is changed to the state of being sprung.
  • the base 71 and the starting member 72 are connected through a quick connection button 73, and the starting member 72 can be separated from the base 71 by pressing the quick connection button 73.
  • the trigger member 50 can be pulled out by pulling the activation member 72 away from the base 71 by the member 72 , so that the trigger member 50 is separated from the binding member 40 , and the binding member 40 changes from the binding state to the releasing state.
  • the base 71 is provided with a protrusion 711
  • the starting member 72 is provided with a groove 721 .
  • the protrusion 711 snaps into the groove 721 Inside, so that the base 71 and the activation member 72 are relatively fixed.
  • the activation member 72 is pulled hard so that the protrusion 711 escapes from the groove 721 to separate the activation member 72 from the base 71, thereby pulling the activation member 72 away from the base 71.
  • the activation part 72 can pull out the trigger part 50, so that the trigger part 50 is separated from the binding part 40, and then the binding part 40 changes from the binding state to the release state.
  • the base 71 may also be provided with a groove 721
  • the activation member 72 may be provided with a protrusion 711 , and the same effect can also be achieved through the cooperation of the protrusion 711 and the groove 721 .
  • the depth of the groove 721 is determined by the toughness of the material of the protrusion 711, the softer the material, the greater the depth of the groove 721, which can be determined comprehensively by the actual structure.
  • the material of the protrusion 711 can be selected from acrylonitrile-butadiene-styrene plastic (ABS), polycarbonate plastic (PC), polypropylene (PP), high-density polyethylene (HDPE), thermoplastic elastomer (TPE), etc.
  • the depth of the groove 721 can be selected from 0.2mm-2mm.
  • the base 71 is provided with a buckle 712
  • the activator 72 is provided with a buckle 722
  • the base 71 is provided with a buckle 722
  • the activator 72 is provided with a buckle. 712 , by inserting the buckle 712 into the buckle 722 , the base 71 and the activation member 72 can be relatively fixed.
  • the buckle 712 When it is necessary to release the implant 30, press the buckle 712 so that the buckle 712 is disengaged from the buckle 722 to separate the activation member 72 from the base 71, and then start by pulling the activation member 72 in a direction away from the base 71
  • the trigger member 50 can be pulled out by the member 72, so that the trigger member 50 is separated from the binding member 40, and then the binding member 40 is changed from the binding state to the releasing state.
  • the base 71 is provided with a first hook 713
  • the activation member 72 is provided with a second hook 723
  • the activation member 72 is also provided with a contact with the base 71 .
  • the elastic piece 74 in the initial state, the elastic piece 74 pushes up the second hook 723 through the elastic force and engages it on the first hook 713, so that the starting piece 72 is relatively fixed to the base 71, and when it needs to be released
  • press the elastic member 74 so that the first hook 713 is separated from the second hook 723, so that the activation member 72 is separated from the base 71, and then the activation member 72 is pulled away from the base 71.
  • the activation part 72 can pull out the trigger part 50, so that the trigger part 50 is separated from the binding part 40, and then the binding part 40 changes from the binding state to the release state.
  • the starter 72 is provided with a pin 75
  • the base 71 is provided with a pin groove 751.
  • the pin 75 can be pulled out from the pin groove 751 to separate the activator 72 from the base 71, and then the activator 72 can be pulled away from the base 71 by pulling the activator 72.
  • the trigger piece 50 is pulled out, so that the trigger piece 50 is separated from the binding piece 40, and then the binding piece 40 is changed from the binding state to the releasing state.
  • the pin 75 and the pin groove 751 can also be threaded, so as to increase the stability of the connection.
  • the inner tube assembly 20 is provided with a first limiting member 21 and a second limiting member 22 at intervals, and a limiting groove is formed between the first limiting member 21 and the second limiting member 22,
  • the binding piece 40 is located in the limiting groove when in the binding state, so that the first limiting piece 21 and the second limiting piece 22 can respectively limit the binding piece 40 from both sides of the binding piece 40, avoiding the binding of the binding piece 40.
  • In the binding state it moves along the axial direction of the inner tube assembly 20, thereby improving the stability of the connection between the binding member 40 and the implant 30 in the binding state.
  • the first limiting member 21 is also provided with a limiting hole extending along the axial direction of the inner tube assembly 20, the triggering member 50 is at least partially passed through the limiting hole, and the triggering member 50 can move along the limiting hole .
  • the trigger piece 50 By passing the trigger piece 50 in the limiting hole, misalignment of the trigger piece 50 is avoided, and the trigger piece 50 can only be moved along the axial direction of the inner tube assembly 20 .
  • one end of the inner tube assembly 20 is provided with a conical head 23, and at least part of the trigger member 50 is inserted in the conical head 23.
  • the end of the trigger member 50 away from the activation assembly 70 is inserted into the Inside the conical head 23.
  • the conical head 23 at one end of the inner tube assembly 20
  • the resistance of human tissue to the inner tube assembly 20 during delivery is reduced.
  • the trigger 50 is limited, and on the other hand, the trigger 50 is prevented from scratching human tissues.
  • the delivery system further includes an ejector tube assembly 60, which is arranged between the outer tube assembly 10 and the inner tube assembly 20, and the ejector tube assembly 60 and the outer tube assembly 10 can move relative to each other in the axial direction, One end of the ejection tube assembly 60 abuts against the implant 30, and the ejection tube assembly 60 is used to push the implant 30 out of the outer tube assembly 10, so that the ejection tube assembly 60 and the outer tube assembly 10 are aligned along the axis Relatively moving, the ejection tube assembly 60 can push the implant 30 out of the outer tube assembly 10 .
  • the implant 30 can be ejected by withdrawing the outer tube assembly 10 while advancing the ejection tube assembly 60 .
  • the conveying system also includes a threaded pipe 80, on which a first external thread 81 and a second external thread 82 are arranged, and the direction of rotation of the first external thread 81 and the direction of rotation of the second external thread 82 are
  • the outer pipe assembly 10 is provided with a first internal thread matching with the first external thread 81
  • the ejector pipe assembly 60 is provided with a second internal thread matching with the second external thread 82, so that by rotating the threaded pipe 80, That is, the ejector tube assembly 60 moves forward while the outer tube assembly 10 is retracted axially.
  • the implant 30 is pushed out of the outer tube assembly 10 by the ejection tube assembly 60 .
  • the traditional implant delivery device generally achieves the purpose of releasing the implant 30 only by withdrawing the outer tube backward. Since the implant 30 is compressed in the outer tube, it has a certain friction force with the outer tube. When withdrawing, the implant 30 will be driven to move and the length of the implant 30 will be elongated, so that the position and length of the implant 30 after release do not meet the predetermined requirements.
  • the delivery system of the present application simultaneously drives the outer tube assembly 10 to retreat in the axial direction and the ejector tube assembly 60 to push out the implant 30 forward by means of screw feed, thereby compensating for the expansion and contraction of the implant 30. The displacement further improves the positioning accuracy of the implant 30 after it is released.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

本申请涉及一种输送系统，输送系统包括内管组件(20)，外管组件(10)，绑扎件(40)以及触发件(50)。其中，外管组件(10)套设在内管组件(20)外，并且外管组件(10)与内管组件(20)被配置为能沿轴向方向相对移动，外管组件(10)与内管组件(20)之间具有用于容纳植入物(30)的空间。绑扎件(40)与植入物(30)可拆卸连接，绑扎件(40)具有使植入物(30)固定在内管组件(20)上的绑扎状态和使植入物(30)与内管组件(20)分离的解脱状态，触发件(50)与绑扎件(40)连接，触发件(50)用于驱使绑扎件(40)由绑扎状态转变为解脱状态。上述输送系统能提高植入物(30)释放后的定位精确度。

Description

输送系统 技术领域
本申请涉及医疗器械技术领域，特别是涉及一种输送系统。
背景技术
髂静脉受压综合征是血管外科疾病中较常见的疾病，髂静脉受压综合征是指髂动脉受压导致腔内粘连，狭窄或闭塞，从而发生各种临床症状的综合征。通过向髂静脉植入支架等植入物以支撑起病变血管，是有效的治疗手段。
为了保证治疗效果，手术对植入物的植入位置要求非常精准。然而由于植入物的自膨胀性能，在释放后，植入物的长度会随着植入物的膨胀而缩短，进而引发植入物位移，导致植入物不能被准确地释放到预定的位置，进而导致病变血管不能被植入物完全支撑而仍存在狭窄或阻塞段，达不到预期治疗目的。
申请内容
基于此，有必要针对如何提高植入物的定位精确性问题，提供一种输送系统。
一方面，本申请提供一种输送系统，包括：
内管组件；
外管组件，所述外管组件套设在所述内管组件外，并且所述外管组件与所述内管组件被配置为能沿轴向方向相对移动，在所述外管组件与所述内管组件之间具有放置植入物的空间；
绑扎件，所述绑扎件用于与所述植入物可拆卸连接，所述绑扎件具有使所述植入物的至少部分固定在所述内管组件上的绑扎状态和使所述植入物与所述内管组件分离的解脱状态；以及，
触发件，所述触发件与所述绑扎件连接，所述触发件用于驱使所述绑扎件由所述绑扎状态转变为解脱状态。
下面对本申请的技术方案作进一步的说明：
在其中一个实施例中，所述绑扎件用于与所述植入物的先释放端可拆卸连接。
在其中一个实施例中，所述绑扎件的至少部分固定在所述内管组件上，所述绑扎件在所述绑扎状态时环绕在所述植入物上，并且所述绑扎件与所述触发件可拆卸连接，当所述 绑扎件与所述触发件连接时，所述绑扎件处于所述绑扎状态，当所述绑扎件与所述触发件分离时，所述绑扎件处于所述解脱状态。
在其中一个实施例中，所述绑扎件的一端与所述内管组件固定连接，所述绑扎件的另一端用于环绕所述植入物后与所述触发件可拆卸连接。
在其中一个实施例中，所述绑扎件包括第一部以及第二部，所述第一部的一端与所述第二部的一端均与所述内管组件固定连接，所述第一部的另一端用于绕设过所述植入物的一部分后与所述触发件可拆卸连接；所述第二部的另一端绕用于设过所述植入物的另一部分后与所述触发件可拆卸连接。
在其中一个实施例中，所述输送系统还包括启动组件，所述启动组件与所述触发件连接，所述启动组件用于驱动所述触发件沿所述内管组件的轴向移动，以使得所述触发件与所述绑扎件分离。
在其中一个实施例中，所述启动组件包括基座以及与所述基座可拆卸连接的启动件，所述基座与所述内管组件连接，所述启动件与所述触发件连接，所述启动件具有固定在所述基座上的固定状态以及能相对所述基座活动的活动状态，在所述活动状态下，所述启动件能驱动所述触发件沿所述内管组件的轴向移动。
在其中一个实施例中，所述内管组件上间隔地设有第一限位件与第二限位件，所述第一限位件与所述第二限位件之间形成有限位槽，所述绑扎件在所述绑扎状态时位于所述限位槽内。
在其中一个实施例中，所述第一限位件和/或所述第二限位件还开设有沿所述内管组件的轴向方向延伸的限位孔，所述触发件至少部分穿设在所述限位孔内，并且所述触发件能沿所述限位孔移动。
在其中一个实施例中，所述内管组件的一端设有锥形头，所述触发件的至少部分插设在所述锥形头内。
在其中一个实施例中，所述输送系统还包括顶出管组件，所述顶出管组件设置在所述外管组件与所述内管组件之间，并且所述顶出管组件与外管组件能沿轴向相配合使两者沿轴向作反向运动，所述顶出管组件的一端用于与所述植入物抵接，所述顶出管组件用于将所述植入物推出所述外管组件外。
在其中一个实施例中，所述输送系统还包括螺纹管，所述螺纹管上设置有第一外螺纹以及第二外螺纹，所述第一外螺纹的旋向与所述第二外螺纹的旋向相反，所述外管组件设有与所述第一外螺纹相配合的第一内螺纹，所述顶出管组件设有与所述第二外螺纹相配合的第二内螺纹。
上述输送系统在输送并释放植入物的过程中通过绑扎件将植入物的至少部分固定在内管组件上，免了植入物在释放后的膨胀过程中由于反作用力或血流作用引发的植入物位移，提高了植入物在释放过程中的定位准确性。当植入物未被绑扎件束缚的部分被完全释放出外管组件并膨胀后，再通过触发件驱使绑扎件由绑扎状态转变为解脱状态，使得植入物与内管组件分离并开始进一步膨胀，当植入物完全膨胀后会锚定住病变组织，此时撤出外管组件与内管组件即可完成植入物的输送与部署。
附图说明
构成本申请的一部分的附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一实施例的输送系统的局部示意图；
图2为一实施例的输送系统的绑扎件与植入物的配合关系图；
图3为另一实施例的输送系统的绑扎件与植入物的配合关系图；
图4为一实施例的输送系统的剖视图；
图5为第一实施例的启动组件的结构示意图；
图6为第二实施例的启动组件的结构示意图；
图7为第三实施例的启动组件的结构示意图；
图8为第四实施例的启动组件的结构示意图；
图9为第五实施例的启动组件的结构示意图；
图10为第六实施例的启动组件的结构示意图。
附图标记说明：
10、外管组件；20、内管组件；21、第一限位件；22、第二限位件；23、锥形头；30、植入物；40、绑扎件；41、第一部；42、第二部；50、触发件；60、顶出管组件；70、启动组件；71、基座；711、凸起；712、插扣；713、第一卡勾；72、启动件；721、凹槽；722、扣位；723、第二卡勾；73、快接按钮；74、弹性件；75、销件；751、销槽；80、螺纹管；81、第一外螺纹；82、第二外螺纹。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
具体地，本申请一实施例提供一种输送系统，用于将植入物30输送并部署至病变的人体组织的位置，以使得植入物30代替或修复或支撑病变的人体组织。进一步地，植入物30包括自膨式植入物30，例如自膨式支架等。自膨式支架一般以形状记忆合金为原料制备而得，形状记忆合金具有变形恢复能力。
进一步地，参见图1，一实施例的输送系统包括内管组件20，外管组件10，绑扎件40以及触发件50。其中，外管组件10套设在内管组件20外，并且外管组件10与内管组件20被配置为能沿轴向方向相对移动，外管组件10与内管组件20之间具有用于容纳植入物30的空间。植入物30设置在外管组件10与内管组件20之间，并且植入物30具有被压缩于外管组件10与内管组件20之间的压缩状态以及从外管组件10与内管组件20之间脱离的膨胀状态；绑扎件40用于与植入物30可拆卸连接，绑扎件40具有使植入物30固定在内管组件20上的绑扎状态和使植入物30与内管组件20分离的解脱状态，触发件50与绑扎件40连接，触发件50用于驱使绑扎件40由绑扎状态转变为解脱状态。
具体地，上述输送系统的工作过程为：在初始状态时，植入物30被压缩在内管组件20与外管组件10之间，并且植入物30的至少部分被绑扎件40固定在内管组件20上。此时可通过内管组件20与外管组件10将植入物30输送至预定位置，当植入物30到达预定位置后，通过使外管组件10与内管组件20沿轴向相对移动，从而使得植入物30脱离外管组件10与内管组件20之间的间隙，此时植入物30在自身的自膨胀性能下开始膨胀，由于植入物30的至少部分被绑扎件40束缚在内管组件20上而无法膨胀，植入物30未被束缚部分先开始膨胀，并且在膨胀过程中，植入物30与内管组件20的相对位置被绑扎件40固定，避免了传统植入物30在膨胀过程中由于反作用力或血流作用引发的植入物30位移。当植入物30未被绑扎件40束缚的部分被完全释放出外管组件10并膨胀后，再通过触发件50驱使绑扎件40由绑扎状态转变为解脱状态，此时绑扎件40无法再束缚植入物30，植入物30与内管组件20分离并开始膨胀，当植入物30完全膨胀后会锚定住病变组织，此时撤出外管组件10与内管组件20即可完成植入物30的输送与部署。
上述输送系统在输送并释放植入物30的过程中通过绑扎件40将植入物30的至少部分固定在内管组件20上，避免了植入物30在释放后的膨胀过程中由于反作用力或血流作 用引发的植入物30位移，提高了植入物30在释放过程中的定位准确性。
进一步地，植入物30具有在释放过程中先从外管组件10与内管组件20之间伸出的先释放端，绑扎件40与植入物30的先释放端可拆卸连接。具体地，申请人进行了大量的影像学分析和临床试验观察发现，传统的植入物30在释放过程中，由于植入物30的自膨性能，植入物30在释放初期，从输送装置中释放出来的部分(即先释放端)先开始膨胀，在植入物30未完全释放时，植入物30仍有部分留在外管组件10中，此时先被释放出的部分呈现类似锥形体形状并会对外管组件10产生沿外管组件10的轴向与径向两个方向的力，其中沿外管组件10的轴向上的力是导致植入物30在释放过程中发生位移的重要原因。通过将绑扎件40与植入物30的先释放端可拆卸连接，从而在释放植入物30过程中，能将植入物30的先释放端束缚在内管组件20上，使得植入物30的先释放端被释放出外管组件10后不能先进行膨胀，而是当植入物30被完全释放出外管组件10外后，再通过触发件50驱使绑扎件40由绑扎状态转变为解脱状态，使得植入物30的先释放端解脱束缚，此时植入物30的先释放端才开始膨胀，避免了植入物30的先释放端在被释放初期就开始膨胀导致的位移现象，进一步提高了植入物30在释放过程中的定位准确性。
进一步地，参见图2以及图3，绑扎件40的至少部分固定在内管组件20上，绑扎件40环绕在植入物30上将植入物束缚在内管组件20上，并且绑扎件40与触发件50可拆卸连接，当绑扎件40与触发件50连接时，绑扎件40处于绑扎状态，当绑扎件40与触发件50分离时，绑扎件40处于解脱状态。
例如图2所示，在其中一个实施例中，绑扎件40可为线状，绑扎件40的一端与内管组件20固定连接，绑扎件40的另一端环绕过植入物30一圈后与触发件50可拆卸连接。较佳地，植入物30的先释放端包括多个支杆，每两个相邻支杆的一端形成V型的封闭结构即形成倒钩结构，绑扎件40在环绕植入物30的过程中依次穿过支杆的倒钩结构，从而提高绑扎件40与植入物30的连接稳固性。
进一步地，绑扎件40的另一端设有连接孔，从而在绑扎件40环绕过植入物30一圈后通过触发件50穿入绑扎件40的连接孔内即可维持绑扎件40的绑扎状态。当需要释放植入物30时，通过驱动触发件50沿内管组件20的轴向移动以使得触发件50退出连接孔，进而使得绑扎件40与触发件50分离，此时绑扎件40进入解脱状态，绑扎件40不再能束缚植入物30的先释放端，植入物30的先释放端与内管组件20分离并开始膨胀。
参见图3，在另一个实施例中，绑扎件40包括第一部41以及第二部42，第一部41的一端与第二部42的一端均与内管组件20固定连接，第一部41的另一端绕设过植入物30的一部分后与触发件50可拆卸连接；第二部42的另一端绕设过植入物30的另一部分 后与触发件50可拆卸连接。具体地，植入物30的先释放端包括多个支杆，每两个相邻支杆的一端形成V型的封闭结构即形成倒钩结构，第一部41依次穿过所有支杆中部分支杆的倒钩结构后与触发件50可拆卸连接，第二部42依次穿过剩余部分支杆的倒钩结构后与触发件50可拆卸连接。进一步地，第一部41设有第一连接孔，第二部42设有第二连接孔，触发件50同时插设在第一连接孔与第二连接孔内，从而维持绑扎件40的绑扎状态，当需要释放植入物30时，通过驱动触发件50沿内管组件20的轴向移动以使得触发件50退出第一连接孔与第二连接孔，使得第一部41以及第二部42分离，此时绑扎件40进入解脱状态，第一部41以及第二部42不再能束缚植入物30的先释放端，植入物30的先释放端与内管组件20分离并开始膨胀，通过将绑扎件40配置为独立第一部41以及第二部42，同时避免一根绑扎件40过长导致的绑扎或解脱困难，便于手术操作，节省了手术时间。
进一步地，参见图4，输送系统还包括启动组件70，触发件50沿内管组件20的轴向延伸并伸出外管组件10后与启动组件70连接，启动组件70用于驱动触发件50沿内管组件20的轴向移动，以使得触发件50与绑扎件40分离。具体地，启动组件70包括基座71以及与基座71可拆卸连接的启动件72，基座71与内管组件20连接，从而使得基座71相对固定。触发件50与启动件72连接，启动件72具有固定在基座71上的固定状态以及能相对基座71活动的活动状态，在活动状态下，启动件72能驱动触发件50沿内管组件20的轴向移动，从而在输送植入物30过程中，使启动件72固定在基座71上，能防止触发件50意外脱落或位移而导致的植入物30被意外释放。
具体地，基座71与启动件72的连接方式很多，例如图5所示，在第一实施例中，基座71与启动件72螺纹连接，从而通过将启动件72从基座71上旋松，再沿远离基座71方向拉动启动件72即可抽出触发件50，使得触发件50与绑扎件40分离，进而使得绑扎件40从绑扎状态变为解脱状态，进而使植入物30从被绑扎件40束缚的状态变为弹开状态。
又例如图6所示，在第二实施例中，基座71与启动件72通过快接按钮73连接，按下快接按钮73即可使得启动件72与基座71分离，从而通过将启动件72沿远离基座71方向拉动启动件72即可抽出触发件50，使得触发件50与绑扎件40分离，进而使得绑扎件40从绑扎状态变为解脱状态。
再例如图7所示，在第三实施例中，基座71设有凸起711，启动件72设有凹槽721，在启动件72的固定状态时，凸起711卡接在凹槽721内，从而使得基座71与启动件72相对固定。当需要释放植入物30时，用力拉动启动件72，使得凸起711从凹槽721内脱 出即可使得启动件72与基座71分离，从而通过将启动件72沿远离基座71方向拉动启动件72即可抽出触发件50，使得触发件50与绑扎件40分离，进而使得绑扎件40从绑扎状态变为解脱状态。需要说明的是在另一个实施例中也可以是基座71设有凹槽721，启动件72设有凸起711，通过凸起711与凹槽721配合也能起到同样的效果。进一步地，凹槽721深度由凸起711的材质韧性来决定，材质越软，凹槽721的深度就大一些，可结构实际情况综合决定。凸起711的材料可选用丙烯腈-丁二烯-苯乙烯塑料(ABS)、聚碳酸酯塑料(PC)、聚丙烯(PP)、高密度聚乙烯(HDPE)、热塑性弹性体(TPE)等，凹槽721的深度可选择0.2mm-2mm。
又例如图8，所示，在第四实施例中，基座71设有插扣712，启动件72设有扣位722，或者基座71设有扣位722，启动件72设有插扣712，通过将插扣712插入扣位722内即可使得基座71与启动件72相对固定。当需要释放植入物30时，按压插扣712，使得插扣712从扣位722内脱出即可使得启动件72与基座71分离，再通过将启动件72沿远离基座71方向拉动启动件72即可抽出触发件50，使得触发件50与绑扎件40分离，进而使得绑扎件40从绑扎状态变为解脱状态。
还例如图9所示，在第五实施例中，基座71设有设有第一卡勾713，启动件72设有第二卡勾723，启动件72还设有与基座71抵接的弹性件74，在初始状态时，弹性件74通过弹力作用将第二卡勾723顶起并卡接在第一卡勾713上，从而使得启动件72与基座71相对固定，当需要释放植入物30时，按压弹性件74，使得第一卡勾713与第二卡勾723分离，即可使得启动件72与基座71分离，再通过将启动件72沿远离基座71方向拉动启动件72即可抽出触发件50，使得触发件50与绑扎件40分离，进而使得绑扎件40从绑扎状态变为解脱状态。
参见图10所示，第六实施例中，启动件72设有销件75，基座71设有销槽751，通过将销件75插入销槽751内，即可使得基座71与启动件72相对固定。当需要释放植入物30时，将销件75从销槽751内拔出即可使得启动件72与基座71分离，再通过将启动件72沿远离基座71方向拉动启动件72即可抽出触发件50，使得触发件50与绑扎件40分离，进而使得绑扎件40从绑扎状态变为解脱状态。进一步地，销件75与销槽751也可以为螺纹配合，从而增加连接稳固性。
进一步地，参见图1，内管组件20上间隔地设有第一限位件21与第二限位件22，第一限位件21与第二限位件22之间形成有限位槽，绑扎件40在绑扎状态时位于限位槽内，从而使得第一限位件21与第二限位件22能分别从绑扎件40的两侧对绑扎件40进行限位，避免了绑扎件40在绑扎状态下沿内管组件20的轴向移动，从而提高了绑扎件40在绑扎 状态下与植入物30得连接稳固性。
进一步地，第一限位件21还开设有沿内管组件20的轴向方向延伸的限位孔，触发件50至少部分穿设在限位孔内，并且触发件50能沿限位孔移动。通过将触发件50穿设在限位孔内，避免了触发件50错位，保证触发件50只能沿内管组件20的轴向移动。
进一步地，参见图1，内管组件20的一端设有锥形头23，触发件50的至少部分插设在锥形头23内，较佳地，触发件50远离启动组件70的一端插在锥形头23内。具体地，通过在内管组件20的一端设置锥形头23，减小了在输送过程中，人体组织对内管组件20的阻力。再通过将触发件50远离启动组件70的一端设置在锥形头23内，一方面对触发件50限位，另一方面避免了触发件50划伤人体组织。
参见图4，输送系统还包括顶出管组件60，顶出管组件60设置在外管组件10与内管组件20之间，并且顶出管组件60与外管组件10能沿轴向相对移动，顶出管组件60的一端与植入物30抵接，顶出管组件60用于将植入物30推出至外管组件10外，从而通过使顶出管组件60与外管组件10沿轴向相对移动，即可使得顶出管组件60将植入物30顶出至外管组件10外。具体地，通过将外管组件10后撤，同时顶出管组件60前进，即可使得植入物30被顶出。
进一步地，参见图4，输送系统还包括螺纹管80，螺纹管80上设置有第一外螺纹81以及第二外螺纹82，第一外螺纹81的旋向与第二外螺纹82的旋向相反，外管组件10设有与第一外螺纹81相配合的第一内螺纹，顶出管组件60设有与第二外螺纹82相配合的第二内螺纹，从而通过转动螺纹管80，即可使得外管组件10沿轴向后撤的同时顶出管组件60向前移动。进而使得植入物30被顶出管组件60顶出外管组件10外。
具体地，传统的植入物输送装置一般只通过后撤外管，达到释放植入物30的目的，由于植入物30被压缩在外管内，与外管有着一定摩檫力，当外管后撤时会带动植入物30移动并且会拉长植入物30的长度，如此释放后的植入物30的位置以及长度均不符合预定要求。本申请的输送系统通过螺纹进给的方式同时驱动外管组件10沿轴向后撤和顶出管组件60向前顶出植入物30，从而补偿植入物30因膨胀短缩而造成的位移，进一步提高了植入物30被释放后的定位准确性。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说， 在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。

Claims (12)

  1. 一种输送系统，其特征在于，包括：
    内管组件；
    外管组件，所述外管组件套设在所述内管组件外，并且所述外管组件与所述内管组件被配置为能沿轴向方向相对移动，在所述外管组件与所述内管组件之间具有放置植入物的空间；
    绑扎件，所述绑扎件用于与所述植入物可拆卸连接，所述绑扎件具有使所述植入物的至少部分固定在所述内管组件上的绑扎状态和使所述植入物与所述内管组件分离的解脱状态；以及，
    触发件，所述触发件与所述绑扎件连接，所述触发件用于驱使所述绑扎件由所述绑扎状态转变为解脱状态。
  2. 根据权利要求1所述的输送系统，其特征在于，所述绑扎件用于与所述植入物的先释放端可拆卸连接。
  3. 根据权利要求1所述的输送系统，其特征在于，所述绑扎件的至少部分固定在所述内管组件上，所述绑扎件在所述绑扎状态时环绕在所述植入物上，并且所述绑扎件与所述触发件可拆卸连接，当所述绑扎件与所述触发件连接时，所述绑扎件处于所述绑扎状态，当所述绑扎件与所述触发件分离时，所述绑扎件处于所述解脱状态。
  4. 根据权利要求3所述的输送系统，其特征在于，所述绑扎件的一端与所述内管组件固定连接，所述绑扎件的另一端用于环绕所述植入物后与所述触发件可拆卸连接。
  5. 根据权利要求4所述的输送系统，其特征在于，所述绑扎件包括第一部以及第二部，所述第一部的一端与所述第二部的一端均与所述内管组件固定连接，所述第一部的另一端用于绕设过所述植入物的一部分后与所述触发件可拆卸连接；所述第二部的另一端用于绕设过所述植入物的另一部分后与所述触发件可拆卸连接。
  6. 根据权利要求3所述的输送系统，其特征在于，所述输送系统还包括启动组件，所述启动组件与所述触发件连接，所述启动组件用于驱动所述触发件沿所述内管组件的轴向移动，以使所述触发件与所述绑扎件分离。
  7. 根据权利要求6所述的输送系统，其特征在于，所述启动组件包括基座以及与所述基座可拆卸连接的启动件，所述基座与所述内管组件连接，所述启动件与所述触发件连接，所述启动件具有固定在所述基座上的固定状态以及能相对所述基座活动的活动状态， 在所述活动状态下，所述启动件能驱动所述触发件沿所述内管组件的轴向移动。
  8. 根据权利要求1所述的输送系统，其特征在于，所述内管组件上间隔地设有第一限位件与第二限位件，所述第一限位件与所述第二限位件之间形成有限位槽，所述绑扎件在所述绑扎状态时位于所述限位槽内。
  9. 根据权利要求8所述的输送系统，其特征在于，所述第一限位件和/或所述第二限位件还开设有沿所述内管组件的轴向方向延伸的限位孔，所述触发件至少部分穿设在所述限位孔内，并且所述触发件能沿所述限位孔移动。
  10. 根据权利要求1所述的输送系统，其特征在于，所述内管组件的一端设有锥形头，所述触发件的至少部分插设在所述锥形头内。
  11. 根据权利要求1所述的输送系统，其特征在于，所述输送系统还包括顶出管组件，所述顶出管组件设置在所述外管组件与所述内管组件之间，并且所述顶出管组件与外管组件相配合使两者沿轴向作反向运动，所述顶出管组件的一端用于与所述植入物抵接，所述顶出管组件用于将所述植入物推出所述外管组件。
  12. 根据权利要求11所述的输送系统，其特征在于，所述输送系统还包括螺纹管，所述螺纹管上设置有第一外螺纹以及第二外螺纹，所述第一外螺纹的旋向与所述第二外螺纹的旋向相反，所述外管组件设有与所述第一外螺纹相配合的第一内螺纹，所述顶出管组件设有与所述第二外螺纹相配合的第二内螺纹。
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