WO2021129631A1 - 支架输送释放装置及支架输送释放系统 - Google Patents

支架输送释放装置及支架输送释放系统 Download PDF

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Publication number
WO2021129631A1
WO2021129631A1 PCT/CN2020/138439 CN2020138439W WO2021129631A1 WO 2021129631 A1 WO2021129631 A1 WO 2021129631A1 CN 2020138439 W CN2020138439 W CN 2020138439W WO 2021129631 A1 WO2021129631 A1 WO 2021129631A1
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WO
WIPO (PCT)
Prior art keywords
stent
release
proximal end
tail
stent delivery
Prior art date
Application number
PCT/CN2020/138439
Other languages
English (en)
French (fr)
Inventor
李安伟
王雷
王永胜
Original Assignee
杭州唯强医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201911341841.8A external-priority patent/CN113081423A/zh
Priority claimed from CN201922337204.5U external-priority patent/CN212490282U/zh
Priority claimed from CN201922337203.0U external-priority patent/CN212490253U/zh
Priority claimed from CN201911341650.1A external-priority patent/CN113081388A/zh
Application filed by 杭州唯强医疗科技有限公司 filed Critical 杭州唯强医疗科技有限公司
Publication of WO2021129631A1 publication Critical patent/WO2021129631A1/zh
Priority to US17/845,577 priority Critical patent/US20220313463A1/en

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Classifications

    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/844—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
    • A61F2002/8486—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs provided on at least one of the ends
    • 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
    • A61F2002/9665—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 with additional retaining means

Definitions

  • the present invention requires the priority of the prior application of the application numbers 201911341841.8 and 201922337204.5 filed on December 23, 2019 named “Stent delivery release device and stent delivery release system”, and the title filed on December 23, 2019 as "Reply Membrane stent system and its stent graft" application numbers 201922337203.0 and 201911341650.1 have the priority of prior applications, and the content of the foregoing prior applications is incorporated into this text by way of introduction.
  • the invention relates to the field of medical equipment, in particular to a stent delivery and release device and a stent delivery and release system.
  • the stent graft is a transplantable device consisting of a tubular surgical graft sheath and a self-expanding frame.
  • the vascular stent needs to be released in the vascular segment that needs to be repaired through the cooperation of the delivery system.
  • the vascular stent is placed in the blood vessel, which can seal the aneurysm and rebuild the blood flow path, so that the hemodynamic pressure cannot reach the vascular lesion.
  • the implantation method of aortic vascular stent is to compress the stent into the delivery and release device, and then guide it by implanting a guide wire through a minimally invasive incision in the femoral artery, and then sending the stent through the delivery system along the guide wire that has been implanted in the body beforehand.
  • the location of the lesion of the aorta is delivered to the exact location of the lesion with the assistance of the imaging device, and the stent is released and implanted to the location of the lesion.
  • Common problems encountered by surgeons during the operation are due to unstable operation of the instrument, complex blood vessel structure, narrow surgical field of vision, etc.
  • the proximal or distal end of the stent has been released before the release conditions are reached, resulting in the stent.
  • the inaccuracy of the release position caused a series of subsequent problems and uncertainties, which eventually led to the failure of the stent release.
  • the conveying system needs to be accurate and easy to introduce, accurate and safe release, and easy and easy to withdraw.
  • the purpose of the present invention is to provide a stent delivery and release device and a stent delivery and release system to solve the problem that the proximal or distal end of the stent has been released when the stent does not reach the release conditions, which causes the stent release position to be inaccurate.
  • the present invention provides a stent delivery and release device, which includes a stent proximal release assembly, a guide head, and a control member.
  • the stent proximal release assembly is provided at the proximal end of the stent delivery release device, and the guide head is provided at the proximal end of the stent delivery release device.
  • the distal end of the stent delivery release device, the outer stent is used to be loaded between the guide head and the stent proximal release assembly, the proximal end of the control member is connected to the stent proximal release assembly, the control member At least a part of the distal end surrounds the stent and is detachably connected to the guide head.
  • the proximal end release assembly of the stent tightens or releases the stent by controlling the axial length of the control member.
  • control member includes a flexible elongated structure, and at least a part of the flexible elongated member surrounds the proximal end of the stent.
  • the guide head includes a first main body portion and a first fixing member, the first fixing member is provided at the proximal end of the first main body portion, and the first fixing member and the control member are detachably connected .
  • the first fixing member is provided with a through hole, a barb, a slot, or a combination thereof for fixing the control member.
  • the proximal end release assembly of the stent includes a tail slider and a tail end rotating rod, the tail slider is sleeved on the tail end rotating rod, and the proximal end of the flexible elongated structure is connected to the tail slider.
  • the tail end rotating rod is used to drive the tail slider to move along the axial direction, thereby changing the axial length of the flexible elongated structure.
  • the tail slider includes a second main body and a second fixing member, and the second fixing member is provided on the outer side of the second main body for connection with the control member.
  • the tail end rotating rod includes a main rod part and a rotating part connected with the main rod part
  • the second main body part is a hollow structure and is sleeved on the periphery of the main rod part, and is connected to the main rod part.
  • the rod thread cooperates with movement.
  • the proximal end release assembly of the stent further includes a release slider cover, an inner wall of the release slider cover is recessed with a sliding groove along the axial direction, and the second fixing member of the tail slider is engaged with the sliding groove, And can slide along the extending direction of the sliding groove.
  • the proximal end release assembly of the stent further includes a tail end screw cap, the tail end screw cap is detachably connected to the distal end of the release slider cover, and the tail end screw rod is arranged on the release slider cover When the tail end screw cap is disconnected from the release slider cover, the release slider cover can drive the tail end screw rod to move proximally.
  • the end of the control member is detachably sandwiched between the tail end screw cover and the release slider cover.
  • control member further includes a rigid slender structure, and the guide head is provided with a fixed wire groove;
  • the distal end of the rigid elongated member is used to abut against the groove wall of the fixing wire groove, and the distal end of the flexible elongated member is fixed in the fixing wire groove by the rigid elongated member,
  • the proximal end of the rigid elongated structure is fixed to the release slider cover, and when the rigid elongated structure moves toward the proximal end along with the release slider cover, the distal end of the flexible elongated member moves from the The said fixed wire comes out of the groove.
  • the guide head is further provided with a channel
  • the distal end of the flexible elongated member is provided with a surrounding section
  • the distal end of the surrounding section is used for fixing in the fixing wire groove
  • the proximal end of the surrounding section The end passes through the channel
  • the winding section is used to surround the stent.
  • the stent delivery and release device includes a sheath tube assembly
  • the sheath tube assembly includes a multi-lumen tube
  • a channel for accommodating the control member is provided in the multi-lumen tube.
  • the stent delivery and release device includes a sheath tube assembly, the sheath tube assembly includes an inner sheath core connected to the proximal end of the guide head, and the multi-lumen tube is sleeved on the outer wall of the inner sheath core;
  • the stent proximal release assembly further includes a sheath core fixing member and a tail slide, the sheath core fixing member is fixedly arranged on the outer wall of the inner sheath core, and the upper limit in the axial and circumferential directions is located in the tail slide.
  • the present invention provides a stent delivery and release system.
  • the stent delivery and release system includes a stent and the stent delivery and release device as described in any one of the above. Between components.
  • the proximal stent release assembly of the present application can control the tightening or release of the stent, that is, after the proximal stent release assembly can repeatedly retract and release the stent, the stent can be released to the exact location of the lesion, and the stent is successfully released.
  • Figure 1 is a schematic diagram of the structure of the stent delivery and release system provided by the present invention.
  • Fig. 2 is a schematic structural diagram of the stent delivery and release device in Fig. 1.
  • Fig. 3 is an exploded structural diagram of the stent delivery and release device of Fig. 2.
  • FIG. 4 is a schematic diagram of part of the structure in FIG. 3.
  • FIG. 5 is a schematic cross-sectional structure diagram of a part of the structure in FIG. 4.
  • Fig. 6 is an enlarged schematic diagram of a structure of part M in Fig. 1.
  • Fig. 7 is an enlarged schematic diagram of another structure of part M in Fig. 1.
  • FIG. 8 is a schematic top view of the structure of part M in FIG. 1.
  • FIG. 9 is a schematic diagram of the structure of the guide head in FIG. 2.
  • Fig. 10 is a schematic diagram of the structure of the tail rotating rod in Fig. 2.
  • FIG. 11 is a schematic diagram of a structure of the tail slider in FIG. 2.
  • Fig. 12 is a schematic diagram of the structure of the tail release slider cover in Fig. 2.
  • Fig. 13 is a schematic diagram of the structure of the tail end fixing member in Fig. 2.
  • Fig. 14 is a schematic diagram of another structure of the tail slider in Fig. 2.
  • FIG. 15 is a schematic diagram of the structure of the release slider cover in FIG. 2.
  • the end near the heart after implantation of the blood vessel is generally called the "proximal end” of the stent, and the end far away from the heart after the implantation of the blood vessel is called the “distal end” of the stent, and is defined according to this principle
  • the "proximal” and “distal” of any part of the stent are defined according to this principle. "remote”.
  • Axial generally refers to the length direction of the stent when it is delivered
  • radial generally refers to the direction perpendicular to the “axial direction” of the stent, and the "axial direction” of any component of the stent graft is defined according to this principle.
  • And radial
  • the present invention provides a stent delivery and release system.
  • the stent delivery and release system includes a stent 10 and a stent delivery release device 20.
  • the stent delivery release device 20 is used to control the radial contraction or expansion of the proximal end of the stent 10 so as to release the stent 10 into the blood vessel, and the stent delivery release device 20 can be repeated
  • the stent 10 is tightened or released to adjust the implantation position of the stent 10 to accurately release the stent 10 on the inner wall of the blood vessel cavity to realize the therapeutic function of the intraluminal stent 10.
  • the stent delivery and release device 20 will be described in detail as follows.
  • the stent delivery and release device 20 includes a guide head 201, a sheath core assembly 202, a sheath tube assembly 203, and a stent proximal release assembly 204.
  • the guide head 201 is provided at the distal end of the stent delivery and release device 20, Specifically arranged at the distal end of the sheath core assembly 202, the stent proximal end releasing assembly 204 is arranged at the proximal end of the stent delivery and releasing device 20, specifically arranged at the proximal end of the sheath core assembly 202, and the sheath assembly 203 is sleeved on the sheath core assembly On 202, the stent proximal release assembly 204 is used to repeatedly tighten or release the stent 10, so that the stent 10 can be accurately released at the treatment site in the blood vessel.
  • the stent proximal release component 204 of the present application repeatedly tightens or releases the stent 10, that is, after the stent proximal release component 204 retracts and releases the stent 10 many times, the stent 10 can be accurately released to the lesion position, ensuring that the stent 10 is successfully released, thereby It solves the problem that the proximal or distal end of the stent 10 has been released when the stent 10 does not reach the release conditions, which causes the release position of the stent 10 to be inaccurate, resulting in a series of subsequent problems and uncertainties, and finally leads to the stent 10 The technical problem of the release failure.
  • the diameter of the stent after fully released should be greater than 10-15% of the diameter of the blood vessel.
  • the stent will be difficult to move , Cannot readjust the position.
  • the stent 10 is used to be loaded between the guide head 201 and the proximal end release assembly 204 of the stent, and is used to implant the diseased position under the guidance of the guide head 201.
  • the stent delivery and release device 20 further includes a control member 205.
  • the distal end of the control member 205 at least partially surrounds the stent 10 and is detachably connected to the guide head 201.
  • the end release assembly 204 tightens or releases the stent by controlling the axial length of the control member 205.
  • a connecting piece 101 is provided at the proximal end of the stent 10
  • a connecting piece 101 is provided in the middle of each wave crest at the proximal end of the stent 10
  • the connecting piece 101 is provided in the circumferential direction of the proximal end of the stent 10
  • the control member 205 passes through the connecting member 101, so that at least a part of the control member 205 surrounds the proximal end of the stent 10 to facilitate tightening or release of the proximal end of the stent 10.
  • the connecting piece 101 may be a coil; the connecting piece 101 may be a through hole structure 101a on the bracket 10; the connecting piece 101 may be a separate structure, the connecting piece 101 is fixedly connected to the bracket 10, and each connecting piece 101 has a through hole structure 101a; the connecting piece 101 may be a flexible pull ring fixed on the bracket 10; or the connecting piece 101 may be a piece of wire rope fixed on the bracket 10 at a circumferential interval, and there is formed between the wire rope at a fixed interval and the bracket 10 The gap for the control member 205 to pass through; or the connecting member 101 is a connecting ring with a through-hole structure provided on the bracket.
  • the connecting piece 101 is fixedly connected to the bracket by stitching, heat sealing or welding.
  • the control member 205 is connected to the proximal end release assembly 204 of the stent, and is detachably connected to the guide head 201, and at least a part surrounds the proximal end of the stent 10, so that after the stent 10 is released once, the stent delivery release device 20 will Disengaged from the stent, the stent delivery and release device 20 can retrieve the stent 10 and readjust the release position through the control member 205, and then can tighten or release the stent 10 again. Adjust and release, so that the bracket 10 can be released to an accurate position.
  • the stent delivery and release device 20 of the present application can release the stent 10 step by step through the control member 205, so that the stent 10 can be accurately positioned and the assembly stability is high.
  • control member 205 includes a flexible elongated structure that surrounds the stent 10. It is understood that the control member 205 may also include a rigid elongated structure connected to the proximal end of the flexible elongated structure. A long structure, the rigid elongated structure is inserted into the sheath assembly 203.
  • control member 201 surrounds the proximal end of the stent 10.
  • control member 201 is not limited to surround the proximal end of the stent 10, and can also extend from the proximal end of the stent to the middle section of the stent 10. And the distal end of the stent 10.
  • the guide head 201 includes a first main body portion 2011 and a first fixing member 2012.
  • the first fixing member 2012 is provided at the proximal end of the first main body portion 2011, and the first fixing member 2012 and the control member 205 are detachably connected .
  • the distal end of the first main body portion 2011 has a tapered structure, and the first fixing member 2012 may be an anchor barb, and the anchor barb is detachably connected to the control member 205.
  • the sheath core assembly 202 includes an inner sheath core 2021, a luer connector 2022, a three-way valve 2023, and a three-way pipe fixing piece 2024.
  • the three-way pipe fixing piece 2024 is a hose that is fixedly connected to the three-way valve and guides
  • the head 201 is provided at the distal end of the inner sheath core 2021, the inner sheath core 2021 is connected to the proximal end of the guide head 201, the luer connector 2022 is connected to the tail of the inner sheath core 2021, and the inner sheath core 2021 is close to the end of the luer connector 2022 along its peripheral wall.
  • the through-pipe fixing member 2024, and the three-way pipe fixing member 2024 communicate with the three-way valve 2023 through the pipe body.
  • the stent proximal release assembly 204 includes a sheath core fixing member 2041, which is sleeved on the outer wall of the inner sheath core 2021, and the stent proximal release assembly 204 also includes a tail slide 2042 and a tail slide 2042 Sleeve around the sheath core fixing member 2041 and the inner sheath core 2021, the tail slide 2042 is used to protect the inner sheath core 2021, and at the same time play a decorative role to prevent the inner sheath core 2021 from being exposed.
  • the sheath core fixing member 2041 is fixedly arranged at the proximal end of the inner sheath core 2021, and the axial and circumferential upper limit is located in the tail slide 2042, thereby preventing the proximal stent release assembly 204 from driving the guide head 201 to move randomly when the stent is controlled to release the stent. .
  • the sheath core fixing member 2041 is provided with a limiting groove in the circumferential direction
  • the inner wall of the tail slide 2042 is provided with a limiting protrusion matching the limiting groove
  • the tail slide 2042 is used to restrict the sheath core fixing member 2041 and the inner sheath core 2021 in the axial direction from moving forward and backward in the axial direction, and to restrict the sheath core fixing member 2041 and the inner sheath core 2021 from rotating in the circumferential direction in the circumferential direction.
  • sheath core fixing member 2041 includes two through holes arranged oppositely, and two ends of the control member 205 respectively pass through one through hole.
  • the proximal end release assembly 204 of the stent also includes an inner liner 2043 and a tail end fixing member 2044.
  • the inner liner 2043 is sleeved on the tee fixing member 2024, and the proximal end of the inner liner 2043 is locked and fixed with the tail slide 2042.
  • the fixing member 2044 is sleeved and fixed on the inner liner 2043.
  • the stent proximal release assembly 204 also includes a tail slider 2045 and a tail end rotating rod 2046.
  • the proximal end of the flexible and elongated structure is connected to the tail slider 2045, and the tail end rotating rod 2046 is sleeved on the proximal end of the sheath core assembly 202.
  • the tail slider 2045 is sleeved on the tail end rotating rod 2046, and the tail end rotating rod 2046 drives the tail slider 2045 to move along the extension direction of the sheath core assembly 202, thereby changing the axial length of the flexible elongated structure.
  • the sheath core fixing member 2041 can be sleeved at any position of the distal end of the inner sheath core 2021 tail slider 2045 to fix the inner sheath core 2021 and prevent the tail slider 2045 from adjusting the axis of the control member 205
  • the guide head is driven to move freely when moving toward the length, thereby affecting the tightening and release of the proximal end of the stent.
  • the sheath core fixing member 2041 is provided between the distal end of the tail slider 2045 and the tee fixing member 2024.
  • the tail end screw rod 2046 is sleeved on the proximal end of the inner sheath core 2021, the tail end screw rod 2046 is provided with an inner cavity, the proximal end of the inner sheath core 2021 is provided with a Luer connector 2022, and the Luer connector 2022 is provided on the tail end screw rod.
  • the proximal end of the tail slide 2042 is also arranged in the inner cavity of the tail end rotating rod 2046.
  • the tail end rotating rod 2046 moves along the axial movement and the circumferential rotation movement of the tail slide 2042.
  • the tail end rotating rod 2046 includes a main rod part A and a rotating part B connected to the main rod part A, the tail slider 2045 is a hollow structure, and the tail slider 2045 is sleeved on the main rod A ,
  • the tail slider 2045 is threadedly connected with the main rod A, so that during the rotation of the rotating part B, the tail slider 2045 is matched with the thread of the main rod A, and the tail slider 2045 runs along the extension direction of the main rod A.
  • the main rod part A is externally threaded
  • the tail slider 2045 is provided with internal threads, so that the tail slider 2045 is threaded with the main rod part A, and the tail screw rod is rotated.
  • the tail screw rod drives the tail slider 2045 to rotate and make The tail slider 2045 moves axially.
  • the outer diameter of the rotating part B is larger than the outer diameter of the main rod part A, so that the larger rotating part B facilitates the rotation, so that the tail slider 2045 can be driven to move more smoothly.
  • the tail slider 2045 includes a second main body C and a second fixing member D.
  • the second fixing member D is provided on the outer side of the second main body C for connection with the control member 205.
  • the second fixing member D includes a fixing portion D1 and a winding portion D2, and the fixing portion D1 and the winding portion D2 are both provided on the outer wall of the second main body portion C, and are arranged opposite to each other.
  • the fixing part D1 and the winding part D2 can be provided with round holes, and the winding part D2 is provided with two round holes.
  • One end of the control member 205 is fixedly connected with the round hole of the fixing portion D1, and the other end of the control member 205 passes through the two round holes of the winding portion D2.
  • the second main body C has a hollow structure and is sleeved on the periphery of the main rod A, and is threadedly cooperated with the main rod A to move.
  • the stent proximal release assembly 204 also includes a tail end screw cover 2047 and a release slider cover 2048.
  • the tail end screw cover 2047 is detachably connected to the release slider cover 2048.
  • the tail end screw cover 2047 is rotatably connected to Between the proximal end of the sheath assembly 203 and the distal end of the release slider cover 2048, the control member 205 is released.
  • the tail end rotating rod 2046 is arranged at the proximal end of the release slider cover 2048.
  • the tail end screw cap 2047 is used to fix the release slider cover 2048 to the proximal end of the sheath assembly 203.
  • the operator loosens the tail end screw cap 2047, pull the release slider cover 2048 to the proximal end to release the slider
  • the cover 2048 can drive the proximal end rotating rod 2046, the tail slider 2045 and the flexible elongated structure to move proximally.
  • the tail end screw cap 2047 is snap-connected between the proximal end of the sheath assembly 203 and the distal end of the release slider cover 2048, or is detachably connected in other ways.
  • the release slider cover 2048 is sleeved on the tail slide 2042, and the tail end screw cap 2047 is connected between the proximal end of the tail end fixing member 2044 and the distal end of the release slider cover 2048.
  • the end of the control member 205 is detachably clamped between the end screw cap 2047 and the release slider cover 2048.
  • the end of the control element 205 passing through the winding portion D2 is clamped on the end screw cap 2047 and released
  • the release slider cover 2048 drives the tail slider 2045 and the control member. 205 Evacuate the proximal end of the stent together.
  • the second fixing member D is provided on the inner wall of the release slider cover 2048 for connection with the control member 205.
  • the inner wall of the release slider cover 2048 is recessed with a sliding groove E along the axial direction, and the outer side of the tail slider 2045 or the second fixing member D is engaged with the sliding groove E and can slide along the extending direction of the sliding groove E to prevent
  • the tail slider 2045 rotates in a circumferential direction, which causes the control member 205 to be entangled and knotted during the traveling process.
  • the sliding grooves E are arranged oppositely, and are respectively arranged corresponding to the fixing portion D1 and the winding portion D2, so that the fixing portion D1 and the winding portion D2 can be received in the sliding groove E, so that the fixing portion D1 and the winding portion D2 can be received in the sliding groove E.
  • the wire parts D2 move in the respective sliding grooves E, respectively.
  • One end of the control member 205 is fixed to the fixing portion D1, and the other end of the gathering wire passes through the winding portion D2.
  • the inner wall of the release slider cover 2048 is also recessed in the axial direction with a locking groove F, the locking groove F is provided at the distal end of the release slider cover 2048, and the groove depth is greater than the sliding groove E;
  • the end fixing member 2044 includes a pin K that faces the release slider cover 2048 and is arranged along the axial direction. The pin K is locked and fixed in the locking groove F so that the release slider cover 2048 and the end fixing member 2044 are locked and fixed.
  • the sheath assembly 203 includes a multi-lumen tube 2031.
  • the multi-lumen tube 2031 is sleeved on the outer wall of the inner sheath core 2021 and communicates with the three-way tube fixing member 2024.
  • the multi-lumen tube 2031 is provided with There is a channel for accommodating the control member 205, and a preset distance is provided between the multi-lumen tube 2031 and the guide head 201 to prevent the control member 205 from being entangled and knotted during travel.
  • the multi-lumen tube 2031 is provided with two channels along the axial direction, and the two channels are symmetrically arranged. After the two ends of the control member 205 pass through the two channels respectively, the two through holes are respectively passed through, and then one end of the control member 205 is fixed. In the fixing portion D1, the other end passes through the winding portion D2 and passes between the pin and the engaging groove F to be exposed on the outer surface of the tail end fixing member 2044.
  • the multi-lumen tube 2031 is sheathed with an outer sheath tube 2132, and a space is left between the outer sheath tube 2132 and the multi-lumen tube 2031 for accommodating the stent 10 in a compressed state.
  • the sheath assembly 203 also includes an outer sheath driver 2032 and a tooth block 2033.
  • the outer sheath driver 2032 is sleeved and fixed on the outer sheath 2132, and the outer surface of the outer sheath driver 2032 is protruding with two stoppers 2034.
  • the multi-lumen tube 2031 provides a channel for the control member 205 to prevent the control member 205 from being entangled with other components during movement.
  • the multi-lumen tube 2031 includes two through slots 2133, and one through slot 2133 is used to receive one end of the control member 205 through.
  • the sheath assembly 203 also includes a main slideway 2035 and an end fixing member 2036.
  • the end fixing member 2036 is sleeved on the distal end of the outer sheath 2132 and has a distance from the outer sheath driver 2032.
  • the main slideway 2035 sets It is arranged on the outer sheath tube 2132 and the outer sheath tube driver 2032, and there is a distance between the distal end of the main slideway 2035 and the end fixing member 2036, and the proximal end of the main slideway 2035 is engaged with the tee fixing member 2024,
  • the main slide 2035 includes an axial opening, and two stoppers 2034 extend from the axial opening and can slide along the extension direction of the axial opening.
  • the aforementioned inner liner 2043 of the present application is also sleeved on the proximal end of the main slideway 2035.
  • the sheath assembly 203 also includes a fixed handle 2037 and a button 2038.
  • the fixed handle 2037 is provided outside the multi-lumen tube 2031 and the main slideway 2035, and the distal end of the fixed handle 2037 is clamped to the end fixing member 2036, and the main slideway 2035 is also It includes a button 2038 opening, the fixed handle 2037 includes a snap opening, the button 2038 opening is arranged opposite to the snap opening, and the button 2038 snaps into the snap opening and the button 2038 opening.
  • the sheath assembly 203 also includes a sliding handle 2039 and a sliding handle screw cover 2131.
  • the sliding handle 2039 is sleeved outside the main slideway 2035.
  • the sliding handle screw cover 2131 is rotatably connected to the distal end of the sliding handle 2039 and the proximal end of the fixed handle 2037. In between, the sliding handle 2039 and the fixed handle 2037 are locked and fixed by a button 2038.
  • the button 2038 includes a head G and a rod H connected to the head G.
  • the rod H extends into the engaging opening and the opening of the button 2038.
  • the head G is provided with a hook G1
  • the inner wall of the sliding handle 2039 is provided with protrusions.
  • the hook G1 is engaged with the protrusion, so that the sliding handle 2039 and the fixed handle 2037 are engaged and fixed.
  • the inner wall of the distal end of the sliding handle 2039 is recessed with a ring-shaped protrusion, and the hook G1 penetrates the protrusion of the inner wall of the distal end of the sliding handle 2039 through the sliding handle rotating cover 2131 and is inverted.
  • the outer sheath 2132 is retracted to expose a part of the stent 10, press the button 2038, the button 2038 is separated from the sliding handle 2039, the sliding handle 2039 is threadedly connected with the tooth block 2033, and the tooth block can be driven by turning the sliding handle 2039 2033 rotates and moves the tooth block 2033 in the axial direction, thereby adjusting the movement of the outer sheath 2132.
  • the outer sheath 2132 When the proximal end of the stent is accurately released, the outer sheath 2132 continues to withdraw to expose all the stents. Press the button 2038, and the button 2038 separates from the sliding handle 2039.
  • the surgeon can control the sliding handle 2039 and the sliding handle to rotate the cover 2131 along.
  • the main slide 2035 moves to drive the tooth block 2033 and the outer sheath 2132 to move, instead of rotating the sliding handle 2039 assembly to move the tooth block 2033 and the outer sheath 2132, this movement method is faster, that is, the outer sheath 2132 Quick movement, convenient for quick release of the distal end of the stent after accurate release of the proximal end of the stent.
  • the control member 205 of the present application passes through the multiple connecting members 101 in turn, the two ends of the control member 205 pass through different winding holes, and one of the thread ends passes through the passage of the multi-lumen tube 2031 and the passage of the sheath core fixing member 2041.
  • the hole is fixed to the fixed part D1 of the tail slider 2045, and the other thread end passes through the other channel of the multi-lumen tube 2031 and the other through hole of the sheath core fixing member 2041, and then passes through the winding part D2 of the tail slider 2045 After passing through the two round holes in the opposite direction between the plug and the engaging groove F, they are exposed on the outer surface of the proximal end fixing member 2044.
  • the control member 205 shrinks and closes the proximal end of the bracket provided with the connecting piece 101 close to the guide head 201.
  • the control member 205 expands to expand the proximal end of the stent provided with the connecting member 101.
  • the stent may not be provided with the connecting piece 101, and the control piece 205 directly passes through the wave crest at the proximal end of the stent in turn, and can also adjust the stent contraction and expansion.
  • the control piece 205 may be thin wires and other flexible and tensile strength. Slender structure.
  • the control member 205 will be described as follows.
  • the control member 205 includes the flexible elongated structure.
  • the control member 205 further includes a rigid elongated structure.
  • the material of the control member 205 includes, but is not limited to, polymer materials, fiber materials, metal materials, and the like.
  • the diameter of the flexible elongated member is in the range of 0.1-0.4 mm; the diameter of the rigid elongated member is in the range of 0.1-0.4 mm.
  • control member 205 is a flexible elongated member
  • the second fixing member D is provided with two channels, two ends of the control member 205 pass through the two channels respectively, and one end of the control member 205 passes through
  • the other end of the first fixing member 2012 is detachably fixed to the second fixing member D. After the stent is released, one end of the control member 205 is detached from the second fixing member D and pulled out of the channel, and finally withdrawn from the body together with the stent delivery and release device 20 .
  • control member 205 is a flexible elongated member and a rigid elongated member
  • first fixing member 2012 is provided with a fixed wire groove N With a channel.
  • the distal end of the rigid elongated member is used to abut against the groove wall of the N fixed wire groove, the distal end of the flexible elongated member is fixed in the fixed wire groove N by the rigid elongated member, and the rigid elongated structure
  • the proximal end of the flexible slender member is fixed to the release slider cover 2048, and the distal end of the flexible slender member comes out of the fixed wire groove N when the rigid elongated structure moves toward the proximal end along with the release slider cover 2048.
  • one end of the flexible elongated member is sleeved on the distal end of the rigid elongated member, the distal end of the rigid elongated member is clamped in the fixing wire groove N, and the other end of the flexible elongated member passes through the channel and is fixed to the first fixing member 2012.
  • the proximal end of the long member is detachably fixed to the first fixing member 2012.
  • control member 205 is a flexible elongated member and a rigid elongated member
  • first fixing member 2012 is a through hole and a fixed wire groove.
  • the distal end of the rigid elongated member is clamped in the fixing wire groove, and the distal end of the flexible elongated member is sleeved in the middle part of the fixing wire groove of the rigid elongated member.
  • the second fixing member D is a winding part D2 provided on the outer wall of the tail slider 2045 and a fixing hole provided on the inner wall of the release slider cover 2048.
  • the proximal end of the flexible elongated member passes through The hole is connected with the winding part D2 of the tail slider 2045, the proximal end of the rigid elongated piece penetrates the fixing hole inside the release slider cover 2048, and the fixing hole is provided with two threaded holes to fix the rigid elongated piece by connecting with screws
  • the inner wall of the slider cover 2048 is released, the stability of the rigid elongated member is ensured when the flexible elongated member is pulled to control the release of the proximal end of the stent.
  • the delivery and release sequence of the stent in this embodiment is the same as that in the previous embodiment.
  • the improvement is that in this embodiment, the path of the flexible elongated member withdrawn from the control member 205 is halved and the time is halved, which reduces the process of adjusting the stent release by the flexible control member 205.
  • the risk of entanglement in the middle knot reduces the length of the operation and improves the efficiency and safety.
  • the distal end of the flexible elongated member is provided with a surrounding section
  • the distal end of the surrounding section is used to be fixed in the fixing wire groove N
  • the proximal end of the surrounding section passes through the channel, so
  • the winding section is used to surround the stent 10, such as the proximal end of the stent 10.
  • the positions of the two ends of the surrounding section are fixed by the fixing wire groove N and the channel.
  • the position of the surrounding section surrounding the bracket is determined, which improves the stability of the system.
  • the stent is retracted to the position of the guide head 201, and the outer sheath 2132 is close to the guide head 201.
  • the control member 205 is detachably connected to the guide head 201, and one end of the flexible elongated piece sequentially passes through the other end of the connecting piece 101 at the proximal end of the stent It is fixed to the winding part D2 of the tail slider 2045, and the rigid elongated member is fixed to the fixing hole inside the release slider cover 2048.
  • the tail slider 2045 is at the proximal end of the tail end rotating rod 2046 so that the control member 205 is in a tight state;
  • the stent delivery and release device 20 guides the stent through the delivery system to the diseased location of the aorta along the guide wire implanted in the human body, drives the outer sheath driver 2032 to move the outer sheath 2132 away from the guide head 201, and moves the proximal end of the stent Expose, adjust the stent proximal release assembly 204 to release the stent proximal end.
  • the adjustment control member 205 shrinks to retract the stent to the first fixing member 2012 of the guide head 201, and then fine-tune the stent delivery release device 20 , Realign the stent with the lesion position, and then release the proximal end of the stent.
  • the proximal release position of the stent When the proximal release position of the stent is accurate, hold the proximal end fixing member 2044 firmly, unscrew the tail end screw cap 2047, and then slowly move the release slider cap 2048 axially away from the guide head 201 by at least 100mm, As a result, the tail slider 2045, the tail end rotating rod 2046, and the control member 205 are withdrawn from the outside of the multi-lumen tube 2031 into the multi-lumen tube 2031 together.
  • control member 205 When the control member 205 enters the multi-lumen tube 2031, press the button 2038 while quickly moving the sliding handle 2039 to move the outer sheath 2132 and release the distal end of the stent; after the release is completed, the stent delivery and release device 20 is withdrawn from the human body.
  • the release of the stent by the stent delivery and release device 20 realizes a multi-stage release mode that releases the proximal end first and then releases the distal end.
  • the proximal release assembly can retract and release the stent multiple times, thereby ensuring that the stent is properly released. Releasing to the appropriate lesion position ensures the therapeutic effect of the stent and avoids a series of problems caused by the deviation of the stent release position.

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Abstract

一种支架输送释放装置(20)及系统，支架输送释放装置(20)包括设置于支架输送释放装置(20)近端的支架近端释放组件(204)、设置于支架输送释放装置(20)远端的导向头(201)及控制件(205)，外部的支架(10)用于装载在导向头(201)与支架近端释放组件(204)之间，控制件(205)的近端连接支架近端释放组件(204)，控制件(205)远端的至少一部分环绕支架(10)，并与导向头(201)可拆卸连接，支架近端释放组件(204)通过控制控制件(205)的轴向长度，收紧或释放支架(10)。支架输送释放装置(20)能避免支架(10)的近端或远端在没有达到释放条件的情况下已释放，造成释放位置不准确，最终导致释放失败的问题。

Description

支架输送释放装置及支架输送释放系统
本发明要求2019年12月23日递交的名称为“支架输送释放装置及支架输送释放系统”的申请号201911341841.8、201922337204.5的在先申请优先权，以及2019年12月23日递交的名称为“覆膜支架系统及其覆膜支架”的申请号201922337203.0、201911341650.1的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及医疗器械领域，特别涉及一种支架输送释放装置及支架输送释放系统。
背景技术
胸腹部血管疾病的腔内修复是一种有效的治疗选择，在过去十年中获得了巨大的普及。覆膜支架是一个可移植的装置，由管型外科移植鞘和自膨胀式框架组成。血管支架需要通过输送系统的配合释放在需要修复的血管段。血管支架置于血管内，可封堵动脉瘤，重建血流通路，从而使血液动力学压力不能到达血管病变部位。因为无论是真性动脉瘤、假性动脉瘤还是夹层动脉瘤都是因为血管发生了不同程度的损伤和病变，血管本生的形态可能不规则，这就需要输送系统有良好的导入性能。
主动脉血管支架的植入方法是将支架压缩进输送释放装置后，然后通过股动脉的微创切口植入导丝引导，再沿着事先植入人体的引导导丝将支架经输送系统送到主动脉的病变位置，并在显影设备的辅助下输送至准确的病变部位后，将支架释放植入至病变部位。外科医师在操作过程中常见的问题是由于器械操作不稳，血管结构复杂，手术视野狭隘等原因，支架在没有达到释放条件的情况下，支架的近端或者远端就已经释放开，造成支架释放位置的不准确，产生后续一系列的问题和不确定性，最终导致支架释放失败。输送系统需要具备精确容易导入、精准安全释放及轻松易回撤的性能。
发明内容
本发明的目的在于提供一种支架输送释放装置及支架输送释放系统，以解决支架在没有达到释放条件的情况下，支架的近端或者远端就已经释放开，造成支架释放位置的不准确，最终导致支架释放失败的技术问题。
本发明提供一种支架输送释放装置，包括支架近端释放组件、导向头以及控制件，所述支架近端释放组件设置于所述支架输送释放装置的近端，所述导向头设置于所述支架输送释放装置的远端，外部的支架用于装载在所述导向头与所述支架近端释放组件之间，所述控制件的近端连接所述支架近端释放组件，所述控制件远端的至少一部分环绕所述支架，并与所述导向头可拆卸连接，所述支架近端释放组件通过控制所述控制件的轴向长度，收紧或释放所述支架。
其中，所述控制件包括柔性细长结构，所述柔性细长构件的至少一部分环绕所述支架的近端。
其中，所述导向头包括第一主体部与第一固定件，所述第一固定件设于所述第一主体部的近端，且所述第一固定件与所述控制件可拆卸连接。
其中，所述第一固定件上设有固定所述控制件的通孔、倒钩、卡槽或者以上的组合。
其中，所述支架近端释放组件包括尾部滑块和尾端旋杆，所述尾部滑块套设于所述尾端旋杆上，所述柔性细长结构的近端连接于所述尾部滑块，所述尾端旋杆用于带动所述尾部滑块沿着轴向运动，从而改变所述柔性细长结构的轴向长度。
其中，所述尾部滑块包括第二主体部与第二固定件，所述第二固定件设于所述第二主体部的外侧，供所述控制件连接。
其中，所述尾端旋杆包括主杆部以及与所述主杆部连接的旋转部，所述第二主体部为中空结构并套设于所述主杆部的外围，并与所述主杆部螺纹配合运动。
其中，所述支架近端释放组件还包括释放滑块盖，所述释放滑块盖的内壁沿轴向凹设滑动槽，所述尾部滑块的第二固定件卡合于所述滑动槽，并能够沿所述滑动槽延伸方向滑动。
其中，所述支架近端释放组件还包括尾端旋盖，所述尾端旋盖可拆卸连接 于所述释放滑块盖的远端，所述尾端旋杆设置于所述释放滑块盖的近端，在所述尾端旋盖与所述释放滑块盖解脱连接的情况下，所述释放滑块盖能够带动所述尾端旋杆向近端移动。
其中，所述控制件的端部可拆卸的夹设于所述尾端旋盖以及所述释放滑块盖之间。
其中，所述控制件还包括刚性细长结构，所述导向头设有一个固定丝槽；
所述刚性细长件的远端用于抵接所述固定丝槽的槽壁，所述柔性细长件的远端被所述刚性细长件固定在所述固定丝槽内，
所述刚性细长结构的近端固定于所述释放滑块盖，所述刚性细长结构随同所述释放滑块盖向近端移动的过程中，所述柔性细长件的远端从所述固定丝槽中脱出。
其中，所述导向头还设置有一个通道，所述柔性细长件的远端设置有环绕段，所述环绕段的远端用于固定在所述固定丝槽中，所述环绕段的近端穿过所述通道，所述缠绕段用于环绕所述支架。
其中，所述支架输送释放装置包括鞘管组件，所述鞘管组件包括多腔管，所述多腔管中设有容纳所述控制件的通道。
其中，所述支架输送释放装置包括鞘管组件，所述鞘管组件包括连接在所述导向头近端的内鞘芯，所述多腔管套设于所述内鞘芯的外壁；
所述支架近端释放组件还包括鞘芯固定件以及尾部滑道，所述鞘芯固定件固定设置于所述内鞘芯的外壁，并在轴向以及周向上限位于所述尾部滑道内。
本发明提供一种支架输送释放系统，所述支架输送释放系统包括支架，以及如上任一项所述的支架输送释放装置，所述支架用于装载在所述导向头与所述支架近端释放组件之间。
综上所述，本申请的支架近端释放组件能够控制收紧或释放支架，即支架近端释放组件可重复多次收拢和释放支架后，支架可以释放到准确的病变位置，支架释放成功，从而解决了支架在没有达到释放条件的情况下，支架的近端或者远端就已经释放开，造成支架释放位置的不准确，产生后续一系列的问题和不确定性，最终导致支架释放失败的技术问题。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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发明的一些实施例，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是本发明提供的支架输送释放系统的结构示意图。
图2是图1中的支架输送释放装置的结构示意图。
图3是图2的支架输送释放装置的分解结构示意图。
图4是图3中的部分结构示意图。
图5是图4中的部分结构的剖面结构示意图。
图6是图1中的M部分的放大的一种结构示意图。
图7是图1中的M部分的放大的另一种结构示意图。
图8是图1中的M部分的俯视结构示意图。
图9是图2中的导向头的结构示意图。
图10是图2中的尾部旋杆的结构示意图。
图11是图2中的尾部滑块的一种结构示意图。
图12是图2中的尾释放滑块盖的结构示意图。
图13是图2中的尾端固定件的结构示意图。
图14是图2中的尾部滑块的另一种结构示意图。
图15是图2中的释放滑块盖的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，对于支架，一般将植入血管后靠近心脏的一端称为支架的“近端”，将植入血管后远离心脏的一端称为支架的“远端”，并依据此原理定义支架的任一部件的“近端”和“远端”。对于输送器，一般将相对离操纵者近的一 端成为“近端”，将相对离操纵者远的一端成为“远端”，并依据此原理定义输送系统的任一部件的“近端”和“远端”。“轴向”一般是指支架在被输送时的长度方向，“径向”一般是指支架的与其“轴向”垂直的方向，并依据此原理定义覆膜支架的任一部件的“轴向”和“径向”。
请参阅图1，本发明提供一种支架输送释放系统。支架输送释放系统包括支架10以及支架输送释放装置20，支架输送释放装置20用于控制支架10的近端径向收缩或扩张，从而将支架10释放于血管内，且支架输送释放装置20可以重复收紧或释放支架10来调整支架10的植入位置，以将支架10准确释放在血管腔内壁上，实现腔内支架10的治疗功能。如下将详细介绍支架输送释放装置20。
请参阅图2-图5，支架输送释放装置20包括：导向头201、鞘芯组件202、鞘管组件203以及支架近端释放组件204，导向头201设于支架输送释放装置20的远端，具体地设置于鞘芯组件202远端，支架近端释放组件204设于支架输送释放装置20的近端，具体地设置于鞘芯组件202的近端，鞘管组件203套设于鞘芯组件202上，支架近端释放组件204用于重复收紧或释放支架10，以使支架10能够准确释放于血管内的治疗部位。
本申请的支架近端释放组件204重复收紧或释放支架10，即支架近端释放组件204多次收拢和释放支架10后，支架10可以准确释放到的病变位置，确保支架10释放成功，从而解决了支架10在没有达到释放条件的情况下，支架10的近端或者远端就已经释放开，造成支架10释放位置的不准确，产生后续一系列的问题和不确定性，最终导致支架10释放失败的技术问题。因支架为了保证良好的贴壁性，完全释放后支架的直径应大于血管直径的10-15％，在现有常规支架设计中，如果在不准确的位置释放后，完全打开，支架将难以移动，无法重新调整位置。
如图1与图3所示，支架10用于装载在导向头201与支架近端释放组件204之间，用于在导向头201的引导下植入病变位置。支架输送释放装置20还包括控制件205，控制件205的远端至少一部分环绕支架10，并与导向头201可拆卸连接，且控制件205的近端与支架近端释放组件204连接，支架近端释放组件204通过控制控制件205的轴向长度，收紧或释放支架。
请参阅图6与图8，具体的，支架10的近端设置连接件101，支架10近端的每个波峰的中部设置连接件101，且连接件101为设于支架10近端周向的至少一圈，控制件205穿过连接件101，从而控制件205的至少一部分环绕支架10的近端，以方便对支架10近端的收紧或释放。连接件101可以是线圈；连接件101可以为支架10上的通孔结构101a；连接件101可以为单独的结构，连接件101固定连接于支架10上，每个连接件101均具有通孔结构101a；连接件101可以为固定在支架10上的柔性的拉环；或者连接件101可以为一段周向间隔固定在支架10上的线绳，且间隔固定的线绳与支架10之间形成有供控制件205穿过的间隙；或者连接件101是设置在支架上的设有通孔结构的连接环。连接件101通过缝合、热合或焊接的方式与支架固定连接。
从而，本实施方式通过控制件205与支架近端释放组件204连接，和导向头201可拆卸连接，且至少一部分环绕支架10的近端，使得支架10一次释放后，支架输送释放装置20不会与支架脱离，支架输送释放装置20通过控制件205可以将支架10回收再重新调整释放位置，进而可以将支架10重新收紧或释放，解决了在支架10释放位置不准确的情况下对支架10进行调整再释放，以使支架10可以释放到准确的位置。且本申请的支架输送释放装置20可通过控制件205分步释放支架10，从而能使得支架10精确定位，装配稳定性高。
在本实施方式中，控制件205包括柔性细长结构，所述柔性细长结构环绕于支架10，可以理解的是，控制件205还可以包括连接在所述柔性细长结构近端的刚性细长结构，所述刚性细长结构穿插于鞘管组件203中。
在本实施方式中，控制件201环绕于支架10的近端，在变更实施方式中，控制件201不限于环绕于支架10的近端，还能够从支架的近端环绕延伸至支架10的中段以及支架10的远端。
请参阅图9，导向头201包括第一主体部2011与第一固定件2012，第一固定件2012设于第一主体部2011的近端，且第一固定件2012与控制件205可拆卸连接。具体的，第一主体部2011的远端呈锥形结构，第一固定件2012可选为锚定倒勾，该锚定倒勾与控制件205可拆卸连接。
请继续参阅图4，鞘芯组件202包括内鞘芯2021、鲁尔接头2022、三通阀2023和三通管固定件2024，三通管固定件2024为固定连接三通阀的软管， 导向头201设于内鞘芯2021远端，内鞘芯2021连接于导向头201的近端，鲁尔接头2022连接内鞘芯2021尾部，内鞘芯2021靠近鲁尔接头2022端沿其周壁设置三通管固定件2024，三通管固定件2024通过管体与三通阀2023连通。
请继续参阅图3，支架近端释放组件204包括鞘芯固定件2041，鞘芯固定件2041套设于内鞘芯2021外壁，支架近端释放组件204还包括尾部滑道2042，尾部滑道2042套设于鞘芯固定件2041与内鞘芯2021外围，尾部滑道2042用于保护内鞘芯2021，同时起到装饰的作用防止内鞘芯2021裸露在外。鞘芯固定件2041固定设置于内鞘芯2021的近端，并在轴向以及周向上限位于尾部滑道2042内，从而防止支架近端释放组件204在控制释放支架时带动导向头201随意移动。具体的，在一种实施方式中，鞘芯固定件2041在圆周方向上设置有限位凹槽，尾部滑道2042内壁设置有与所述限位凹槽相匹配的限位凸起，尾部滑道2042用于在轴向上限定鞘芯固定件2041以及内鞘芯2021不能沿轴向前后移动，并在周向上限定鞘芯固定件2041以及内鞘芯2021不能在周向上旋转。
进一步地，鞘芯固定件2041包括两个相对设置的通孔，控制件205的两端分别穿过一个通孔。
支架近端释放组件204还包括内衬2043、尾端固定件2044，内衬2043套设在三通管固定件2024上，且内衬2043的近端与尾部滑道2042卡合固定，尾端固定件2044套设固定在内衬2043上。
支架近端释放组件204还包括尾部滑块2045和尾端旋杆2046，所述柔性细长结构的近端连接于尾部滑块2045，尾端旋杆2046套设于鞘芯组件202的近端，尾部滑块2045套设于尾端旋杆2046上，尾端旋杆2046带动尾部滑块2045沿着鞘芯组件202的延伸方向运动，从而改变所述柔性细长结构的轴向长度。本申请中，鞘芯固定件2041可套设在内鞘芯2021尾部滑块2045远端的任意位置，以将内鞘芯2021固定，防止所述尾部滑块2045在调整所述控制件205轴向长度时带动所述导向头随意移动从而影响支架近端的收紧和释放。在一个具体的实施例中，鞘芯固定件2041设于尾部滑块2045的远端与三通管固定件2024之间。尾端旋杆2046套设于内鞘芯2021的近端，尾端旋杆2046设有内腔，内鞘芯2021的近端设有鲁尔接头2022，鲁尔接头2022设于尾端 旋杆2046的内腔内，尾部滑道2042的近端也设于尾端旋杆2046的内腔内。尾端旋杆2046沿着尾部滑道2042的轴向运动和周向旋转运动。
请参阅图10-图11，尾端旋杆2046包括主杆部A以及与主杆部A连接的旋转部B，尾部滑块2045为中空结构，尾部滑块2045套设于主杆部A上，尾部滑块2045与主杆部A螺纹连接，从而在旋转部B的旋转过程中，通过尾部滑块2045与主杆部A的螺纹配合，尾部滑块2045沿主杆部A的延伸方向周向运动。具体的，主杆部A外设螺纹，尾部滑块2045内设内螺纹，以使尾部滑块2045与主杆部A螺纹连接，转动尾部旋杆，尾部旋杆带动尾部滑块2045转动并使尾部滑块2045轴向移动。旋转部B的外径大于主杆部A的外径，从而较大的旋转部B方便旋转，从而可以更顺利带动尾部滑块2045移动。
请参阅图11，尾部滑块2045包括第二主体部C与第二固定件D，第二固定件D设于第二主体部C的外侧，供控制件205连接。具体的，第二固定件D包括固定部D1与绕线部D2，固定部D1与绕线部D2均设于第二主体部C的外壁，且相对设置。固定部D1和绕线部D2可设置圆孔，其中绕线部D2设置两个圆孔。控制件205的一端与固定部D1的圆孔固定连接，控制件205的另一端穿过绕线部D2的两个圆孔。第二主体部C为中空结构并套设于主杆部A的外围，并与主杆部A螺纹配合运动。
支架近端释放组件204还包括尾端旋盖2047与释放滑块盖2048，尾端旋盖2047可拆卸连接释放滑块盖2048，具体地，本实施方式中，尾端旋盖2047转动连接于鞘管组件203的近端和释放滑块盖2048的远端之间，用于释放控制件205。尾端旋杆2046设置于释放滑块盖2048的近端，在尾端旋盖2047与释放滑块盖2048解脱连接情况下，释放滑块盖2048能够在操作者的控制下向近端移动，即尾端旋盖2047用于将释放滑块盖2048固定于鞘管组件203的近端，操作者旋松尾端旋盖2047的情况下，向近端拉动释放滑块盖2048，则释放滑块盖2048能带动近端的尾端旋杆2046、尾部滑块2045以及柔性细长结构向近端运动。在变更实施方式中，尾端旋盖2047卡合连接于鞘管组件203的近端和释放滑块盖2048的远端之间，或采用其他方式可拆卸连接。
具体的，释放滑块盖2048套设于尾部滑道2042上，尾端旋盖2047连接于尾端固定件2044的近端和释放滑块盖2048的远端之间。具体的，控制件 205的端部可拆卸的夹设于尾端旋盖2047以及释放滑块盖2048之间，比如控制件205穿过绕线部D2的一端卡在尾端旋盖2047与释放滑块盖2048之间，支架10释放完成后，旋开尾端旋盖2047，控制件205穿过绕线部D2的一端被松开后撤释放滑块盖2048带动尾部滑块2045与控制件205一同撤离支架近端。
请参阅图5、图12和图13，第二固定件D设于释放滑块盖2048内壁，供控制件205连接。具体的，释放滑块盖2048的内壁沿轴向凹设滑动槽E，尾部滑块2045外侧凸起或第二固定件D卡合于滑动槽E，并能够沿滑动槽E延伸方向滑动，防止尾部滑块2045周向转动而导致控制件205行进过程中缠绕打结。本申请中，滑动槽E相对设置，且分别与固定部D1与绕线部D2对应设置，以使得固定部D1和绕线部D2均可收容进滑动槽E内，从而使得固定部D1和绕线部D2分别在各自的滑动槽E内移动。控制件205的一端固定于固定部D1，收拢线的另一端穿过绕线部D2。
请参阅图12和图13，释放滑块盖2048的内壁沿轴向还凹设卡合槽F，卡合槽F设于释放滑块盖2048的远端，且槽深大于滑动槽E；尾端固定件2044包括朝向释放滑块盖2048且沿轴向设置的插销K，插销K卡合固定于卡合槽F内，以使释放滑块盖2048与尾端固定件2044卡合固定。
请继续参阅图3、图6-图7，鞘管组件203包括多腔管2031，多腔管2031套设于内鞘芯2021的外壁且与三通管固定件2024连通，多腔管2031设有容纳控制件205的通道，多腔管2031与导向头201之间具有预设距离，防止控制件205行进过程中缠绕打结。具体的，多腔管2031与导向头201之间具有一段预设距离，多腔管2031靠近导向头201的一端弹性良好，使多腔管2031可沿血管弯曲，有利于支架输送释放装置20经导丝到达病变位置。多腔管2031内沿轴向设置有两个通道，两个通道对称设置，控制件205的两端分别穿过两个通道后，再分别穿过两个通孔，然后控制件205的一端固定于固定部D1，另一端穿过绕线部D2并穿过插销和卡合槽F之间露出于尾端固定件2044的外表面。
本申请中，多腔管2031外套设有外鞘管2132，外鞘管2132与多腔管2031之间留出空间用于容纳压缩状态下的支架10。
鞘管组件203还包括外鞘管驱动件2032与牙块2033，外鞘管驱动件2032套设固定在外鞘管2132上，外鞘管驱动件2032的外表面上凸设有两个挡块2034，两个挡块2034之间具有间隙，牙块2033设于间隙内，牙块2033沿轴向移动，以带动外鞘管驱动件2032移动，进而带动外鞘管2132移动。
请继续参阅图6-图8，多腔管2031提供控制件205的通道，以防止控制件205在运动过程中与其他部件缠绕打结。具体的，多腔管2031包括两个通槽2133，一个通槽2133用于收容控制件205的一端穿过。
鞘管组件203还包括主体滑道2035与端部固定件2036，端部固定件2036套设在外鞘管2132的远端，且与外鞘管驱动件2032之间具有间距，主体滑道2035套设在外鞘管2132与外鞘管驱动件2032上，且主体滑道2035的远端与端部固定件2036之间具有间距，主体滑道2035的近端卡合于三通管固定件2024，主体滑道2035包括轴向开口，两个挡块2034从轴向开口中伸出，且可沿轴向开口的延伸方向滑动。本申请的上述内衬2043还套设在主体滑道2035的近端上。
鞘管组件203还包括固定把手2037以及按钮2038，固定把手2037设于多腔管2031和主体滑道2035外，且固定把手2037的远端卡接于端部固定件2036，主体滑道2035还包括按钮2038开口，固定把手2037包括卡合开口，按钮2038开口与卡合开口相对设置，按钮2038卡合在卡合开口与按钮2038开口内。
鞘管组件203还包括滑动把手2039与滑动把手旋盖2131，滑动把手2039套设于主体滑道2035外，滑动把手旋盖2131转动连接于滑动把手2039的远端与固定把手2037的近端之间，滑动把手2039与固定把手2037通过按钮2038卡合固定。
按钮2038包括头部G以及与头部G连接的杆部H，杆部H伸入在卡合开口与按钮2038开口内，头部G上设有挂钩G1，滑动把手2039的内壁设有凸起，挂钩G1卡合于凸起，以使滑动把手2039与固定把手2037卡合固定。具体的，滑动把手2039的远端内壁凹设环状的凸起，挂钩G1穿过滑动把手旋盖2131倒扣于滑动把手2039的远端内壁的凸起。
在支架需要释放时，外鞘管2132后撤，以露出一部分支架10，按下按钮 2038，按钮2038与滑动把手2039分离，滑动把手2039与牙块2033螺纹连接，转动滑动把手2039可带动牙块2033转动并使牙块2033沿轴向移动，进而调节外鞘管2132的移动，此即为外鞘管2132的慢速移动，以释放压缩状态下的支架近端，然后通过支架近端释放组件204调节控制件205的释放量以对支架近端的释放进行精细控制，确保支架近端释放位置的准确性，且在一次释放不准确时，可以将支架10的近端回收再重新调整释放位置，重复将支架的近端收紧和释放后，最终使得支架10的近端释放到准确的位置。当支架近端准确释放后，外鞘管2132继续后撤，以露出所有的支架，按下按钮2038，按钮2038与滑动把手2039分离，外科医师可通过控制滑动把手2039和滑动把手旋盖2131沿主体滑道2035移动进而带动牙块2033和外鞘管2132移动，而不是通过转动滑动把手2039组件使牙块2033和外鞘管2132移动，此种移动方式更快捷，即为外鞘管2132的快速移动，方便支架近端准确释放之后对支架远端的快速释放。
从而，本申请的控制件205依次穿过多个连接件101，控制件205的两头穿过不同的绕线孔，其中的一个线头穿过多腔管2031的通道和鞘芯固定件2041的通孔，固定于尾部滑块2045的固定部D1，另一个线头穿过多腔管2031的另一个通道和鞘芯固定件2041的另一个通孔，再穿过尾部滑块2045的绕线部D2的两个圆孔后反向穿过插销和卡合槽F之间露出于近尾端固定件2044的外表面。因此，当尾端旋杆2046旋转带动尾部滑块2045远离导向头201移动时，控制件205收缩，并将设置连接件101的支架近端收拢靠近导向头201，当尾端旋杆2046旋转带动尾部滑块2045靠近导向头201移动时，控制件205伸张将设置连接件101的支架近端扩张。另外，支架也可以不设置连接件101，控制件205直接依次穿过支架近端的波峰，也能对支架收拢和扩张的调节，控制件205可以是细线等其他柔性和抗拉强度好的细长结构。
如下将介绍控制件205。控制件205包括所述柔性细长结构，在一种实施方式中，控制件205还包括刚性细长结构。控制件205的材质包括但不限于高分子材料、纤维材料、金属材料等。可选地，柔性细长件的直径范围在0.1-0.4mm之间；刚性细长件的直径范围在0.1-0.4mm之间。
在一个具体的实施例中，控制件205为一根柔性细长件，第二固定件D 设有两个通道，控制件205的两端分别穿过两个通道，控制件205的一端穿过第一固定件2012，另一端与第二固定件D可拆卸固定，支架释放结束后，控制件205一端与第二固定件D拆卸从通道抽离，最终与支架输送释放装置20一同撤出体外。
请参阅图7、图13-图14，在另一个具体的实施例中，控制件205为一根柔性细长件和一根刚性细长件，第一固定件2012设有一个固定丝槽N与一个通道。刚性细长件的远端用于抵接N固定丝槽的槽壁，所述柔性细长件的远端被所述刚性细长件固定在固定丝槽内N内，所述刚性细长结构的近端固定于释放滑块盖2048，所述刚性细长结构随同释放滑块盖2048向近端移动的过程中，所述柔性细长件的远端从固定丝槽N中脱出。具体地柔性细长件的一端套在刚性细长件远端，刚性细长件远端卡在固定丝槽N，柔性细长件另一端穿过通道，与第一固定件2012固定，刚性细长件近端可拆卸固定在第一固定件2012，支架释放结束后，抽离刚性细长件解脱柔性细件，最终控制件205与支架输送释放装置20一同撤出体外。本实施例相对于上一个实施例的区别在于：控制件205为一根柔性细长件和一根刚性细长件，第一固定件2012为一个通孔和一个固定丝槽。刚性细长件的远端卡在固定丝槽，柔性细长件的远端套接在刚性细长件固定丝槽中间的部分。如图13～图14所示，第二固定件D为设在尾部滑块2045外壁的绕线部D2和设在释放滑块盖2048内壁的固定孔，柔性细长件的近端穿过通孔与尾部滑块2045的绕线部D2连接，刚性细长件近端穿入释放滑块盖2048内侧的固定孔，固定孔设有两个螺纹孔通过与螺丝的连接将刚性细长件固定在释放滑块盖2048内壁，保证了在拉动柔性细长件控制支架近端释放的时候刚性细长件的稳定。本实施例支架的输送释放顺序与上一个实施例相同，改进点是本实施例撤出控制件205的柔性细长件路径减半、时间减半，降低了柔性控制件205在调整支架释放过程中打结缠绕的风险，减短了手术时长，提高了效率和安全性。
具体地，所述柔性细长件的远端设置有环绕段，所述环绕段的远端用于固定在所述固定丝槽N中，所述环绕段的近端穿过所述通道，所述缠绕段用于环绕支架10，比如支架10的近端。所述环绕段的两端位置通过固定丝槽N以及通道固定，所述环绕段环绕支架的位置确定，提高了系统的稳定性。
如下将介绍支架输送释放装置20对支架的输送释放大致按如下顺序：
将支架收缩于导向头201位置，外鞘管2132紧靠导向头201，此时控制件205与导向头201可拆卸连接，其中柔性细长件一端依次穿过支架近端的连接件101另一端固定于尾部滑块2045的绕线部D2，刚性细长件固定在释放滑块盖2048内侧的固定孔。并且尾部滑块2045处于尾端旋杆2046近端使控制件205处于绷紧状态；
支架输送释放装置20沿事先植入人体的导丝引导将支架经输送系统送到主动脉的病变位置，驱动外鞘管驱动件2032使外鞘管2132远离导向头201移动，将支架的近端露出，调整支架近端释放组件204将支架近端释放，当支架释放位置不准确时，调整控制件205收缩将支架重新收拢于导向头201的第一固定件2012，再微调支架输送释放装置20，使支架重新与病变位置对齐，之后释放支架近端。
当支架近端释放位置准确时，紧握近尾端固定件2044使之不动，旋开尾端旋盖2047，然后缓慢将释放滑块盖2048沿远离导向头201方向轴向移动至少100mm，从而带动尾部滑块2045、尾端旋杆2046、控制件205从多腔管2031外一同撤入多腔管2031内。
当控制件205进入多腔管2031后，按下按钮2038同时快速移动滑动把手2039使外鞘管2132移动，将支架的远端释放；释放完毕后将支架输送释放装置20撤出人体。
因此，支架输送释放装置20对支架的释放实现了先释放近端后释放远端的多级释放方式，另外，近端释放组件可以对支架进行多次的收拢和释放，从而保证了支架恰当地释放到合适的病变位置，保证了支架的治疗效果，避免了因支架释放位置偏差出现的一系列问题。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (15)

  1. 一种支架输送释放装置，其特征在于，包括支架近端释放组件、导向头以及控制件，所述支架近端释放组件设置于所述支架输送释放装置的近端，所述导向头设置于所述支架输送释放装置的远端，外部的支架用于装载在所述导向头与所述支架近端释放组件之间，所述控制件的近端连接所述支架近端释放组件，所述控制件远端的至少一部分环绕所述支架，并与所述导向头可拆卸连接，所述支架近端释放组件通过控制所述控制件的轴向长度，收紧或释放所述支架。
  2. 根据权利要求1所述的支架输送释放装置，其特征在于，所述控制件包括柔性细长结构，所述柔性细长构件的至少一部分环绕所述支架的近端。
  3. 根据权利要求2所述的支架输送释放装置，其特征在于，所述导向头包括第一主体部与第一固定件，所述第一固定件设于所述第一主体部的近端，且所述第一固定件与所述控制件可拆卸连接。
  4. 根据权利要求3所述的支架输送释放装置，其特征在于，所述第一固定件上设有固定所述控制件的通孔、倒钩、卡槽或者以上的组合。
  5. 根据权利要求2所述的支架输送释放装置，其特征在于，所述支架近端释放组件包括尾部滑块和尾端旋杆，所述尾部滑块套设于所述尾端旋杆上，所述柔性细长结构的近端连接于所述尾部滑块，所述尾端旋杆用于带动所述尾部滑块沿着轴向运动，从而改变所述柔性细长结构的轴向长度。
  6. 根据权利要求5所述的支架输送释放装置，其特征在于，所述尾部滑块包括第二主体部与第二固定件，所述第二固定件设于所述第二主体部的外侧，供所述控制件连接。
  7. 根据权利要求6所述的支架输送释放装置，其特征在于，所述尾端旋杆包括主杆部以及与所述主杆部连接的旋转部，所述第二主体部为中空结构并套设于所述主杆部的外围，并与所述主杆部螺纹配合运动。
  8. 根据权利要求6所述的支架输送释放装置，其特征在于，所述支架近端释放组件还包括释放滑块盖，所述释放滑块盖的内壁沿轴向凹设滑动槽，所述尾部滑块的第二固定件卡合于所述滑动槽，并能够沿所述滑动槽延伸方向滑 动。
  9. 根据权利要求8所述的支架输送释放装置，其特征在于，所述支架近端释放组件还包括尾端旋盖，所述尾端旋盖可拆卸连接于所述释放滑块盖的远端，所述尾端旋杆设置于所述释放滑块盖的近端，在所述尾端旋盖与所述释放滑块盖解脱连接的情况下，所述释放滑块盖能够带动所述尾端旋杆向近端移动。
  10. 根据权利要求9所述的支架输送释放装置，其特征在于，所述控制件的端部可拆卸的夹设于所述尾端旋盖以及所述释放滑块盖之间。
  11. 根据权利要求9所述的支架输送释放装置，其特征在于，所述控制件还包括刚性细长结构，所述导向头设有一个固定丝槽；
    所述刚性细长件的远端用于抵接所述固定丝槽的槽壁，所述柔性细长件的远端被所述刚性细长件固定在所述固定丝槽内，
    所述刚性细长结构的近端固定于所述释放滑块盖，所述刚性细长结构随同所述释放滑块盖向近端移动的过程中，所述柔性细长件的远端从所述固定丝槽中脱出。
  12. 根据权利要求11所述的支架输送释放装置，其特征在于，所述导向头还设置有一个通道，所述柔性细长件的远端设置有环绕段，所述环绕段的远端用于固定在所述固定丝槽中，所述环绕段的近端穿过所述通道，所述缠绕段用于环绕所述支架。
  13. 根据权利要求1所述的支架输送释放装置，其特征在于，所述支架输送释放装置包括鞘管组件，所述鞘管组件包括多腔管，所述多腔管中设有容纳所述控制件的通道。
  14. 根据权利要求13所述的支架输送释放装置，其特征在于，所述支架输送释放装置包括鞘管组件，所述鞘管组件包括连接在所述导向头近端的内鞘芯，所述多腔管套设于所述内鞘芯的外壁；
    所述支架近端释放组件还包括鞘芯固定件以及尾部滑道，所述鞘芯固定件固定设置于所述内鞘芯的外壁，并在轴向以及周向上限位于所述尾部滑道内。
  15. 一种支架输送释放系统，其特征在于，所述支架输送释放系统包括支架，以及如权利要求1-14任一项所述的支架输送释放装置，所述支架用于装 载在所述导向头与所述支架近端释放组件之间。
PCT/CN2020/138439 2019-12-23 2020-12-22 支架输送释放装置及支架输送释放系统 WO2021129631A1 (zh)

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