WO2020030073A1 - 控制支架分步释放的输送装置及输送系统 - Google Patents

控制支架分步释放的输送装置及输送系统 Download PDF

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Publication number
WO2020030073A1
WO2020030073A1 PCT/CN2019/099897 CN2019099897W WO2020030073A1 WO 2020030073 A1 WO2020030073 A1 WO 2020030073A1 CN 2019099897 W CN2019099897 W CN 2019099897W WO 2020030073 A1 WO2020030073 A1 WO 2020030073A1
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WO
WIPO (PCT)
Prior art keywords
stent
release
conveying device
delivery
sheath tube
Prior art date
Application number
PCT/CN2019/099897
Other languages
English (en)
French (fr)
Inventor
王永胜
吴世超
李建民
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 CN201810899886.6A external-priority patent/CN110811946A/zh
Priority claimed from CN201810899863.5A external-priority patent/CN110811945A/zh
Priority claimed from CN201821276778.5U external-priority patent/CN209236481U/zh
Priority claimed from CN201821276305.5U external-priority patent/CN209474886U/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
Priority to EP19847072.6A priority Critical patent/EP3834781A4/en
Publication of WO2020030073A1 publication Critical patent/WO2020030073A1/zh
Priority to US17/171,169 priority patent/US20210161691A1/en

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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
    • A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
    • 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
    • A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
    • 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
    • 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
    • A61F2/9661—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 the proximal portion of the stent or stent-graft is released first
    • 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
    • A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
    • 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
    • A61F2002/061—Blood vessels provided with means for allowing access to secondary lumens
    • 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
    • A61F2002/9623—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the sleeve being reinforced
    • 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 relates to the technical field of medical equipment, and in particular, to a delivery device and a delivery system for controlling stepwise release of a stent.
  • Aortic aneurysm refers to the local or diffuse abnormal expansion of the aortic wall, which compresses surrounding organs and causes symptoms.
  • Aortic aneurysms can be divided into true aortic aneurysms, pseudo aortic aneurysms, and dissecting aortic aneurysms by structure.
  • the aortic aneurysm causes an increase in the inner pressure of the blood vessel, so it is progressively enlarged. If it develops for a long time, it eventually ruptures. The larger the tumor, the more likely it is to rupture. According to statistics, without surgery, 90% of patients with thoracic aortic aneurysms die within 5 years, and 75% of patients with abdominal aortic aneurysms die within 5 years.
  • Thoracic aortic endovascular repair has been used to treat aortic dissections such as aortic dissection, aortic penetrating ulcers, aortic wall hematomas, thoracic aortic aneurysms, and pseudoaneurysms.
  • Abdominal aortic endovascular repair has been reported since the first case was used to treat abdominal aortic aneurysms in the 1990s because of its minimal trauma, short surgery and hospital stay, rapid postoperative recovery, and perioperative mortality. And the low incidence of complications, it has developed rapidly in just 20 years.
  • TEVAR and EVAR often use expandable stents as treatment devices.
  • the diameter of the stent after release is generally greater than about 10% of the diameter of the blood vessel. Closely, it cannot be readjusted when the release position is inaccurate. Therefore, medical personnel who require surgical operations have extensive experience and spend more time and energy to accurately position the release angle of the stent before the stent is released. Spend more time. Therefore, it is necessary for us to develop a stepwise release conveying device and conveying system, which can easily adjust the position of the stent.
  • the technical problem to be solved by the embodiments of the present invention is to provide a conveying device and a conveying system for controlling stepwise release of a stent. It can make it easier to adjust the position of the stent when it is partially released, which is beneficial to saving time and energy.
  • an embodiment of the first aspect of the present invention provides a conveying device for controlling stepwise release of a stent, which is used for conveying and stepwise releasing the stent, and includes:
  • An outer sheath tube which is hollow and sleeved on the outer side of the sheath core component, a delivery gap exists between the outer sheath tube and the sheath core component, and the distal end of the delivery gap is used to accommodate the contracted stent;
  • the stent restraint assembly is used to make the stent of the release portion not fully deployed to reduce the outer diameter when the stent is partially released, and to fully expand the stent when the stent is fully released.
  • the delivery device further includes a control handle connected to the outer sheath tube, and the control handle controls the outer sheath tube to move axially relative to the sheath core assembly so that after the contraction The stent is partially released or fully released.
  • the stent restraint assembly includes at least one control wire, the control wire enters from the proximal end of the delivery gap and extends to the distal end of the delivery gap, and the distal end of the control wire Bracket for restraining the release part in the circumferential direction.
  • the stent restraint assembly further includes a pull ring, the pull ring is fixedly connected to the proximal end of the control wire, and the pull ring is applied to the proximal end of the delivery device to release the control. The restraint of the wire on the stent.
  • the delivery device further includes a first locking component, which is used to lock the movement of the stent restraint component to prevent the control wire from restraining the stent by mistake.
  • the outer sheath tube is fixedly connected to the sheath tube connector outside;
  • the control handle includes:
  • the support body is provided with the sheath tube connector inside, and when an axial acting force is applied to the sheath tube connector, it moves axially within the support body to drive the outer sheath tube for axial movement;
  • a fixed handle which is installed outside the distal end of the support body and is fixedly connected to the two;
  • a sliding handle is installed on the outside of the support body.
  • the sliding handle is disposed adjacent to the proximal end of the fixed handle.
  • the sliding handle is rotatable outside the support body and drives the sheath joint to move in the axial direction.
  • the support body is provided with an elongated hole extending in the axial direction, and an outer side of the support body is sleeved with a main teeth block corresponding to the elongated hole.
  • the sheath tube joint includes a joint body, and an abutment block and a distal protrusion provided on the joint body, and the abutment block and the distal protrusion respectively protrude from the elongated hole and abut against it.
  • the proximal and distal ends of the main dental block are used to restrict the axial movement of the main dental block relative to the sheath tube joint.
  • An inner thread is provided on the inner side of the sliding handle, and an outer thread and an inner thread are provided on the outer side of the main block. Engaged with the external thread, when the sliding handle is rotated, the sheath tube joint is driven to move in the axial direction through the main teeth block, the abutment block and the distal projection, and then the outer sheath tube is caused to move axially.
  • the sliding handle can be axially slid on the support main body, a release button is embedded in the fixed handle, and the release button extends a hook to the side of the sliding handle, The hook hooks the sliding handle so that the sliding handle is disposed next to the fixed handle and prevents the sliding handle from sliding in the axial direction.
  • the delivery device further includes a push rod, the distal end of the push rod is located in the delivery gap, and when the control handle controls the outer sheath tube to move axially to the proximal end relative to the sheath core assembly At this time, the push rod is used to abut the stent to prevent the stent from moving toward the proximal end of the delivery gap.
  • the delivery device further includes a support tube, a distal end of the support tube is located in the delivery gap, and the push rod is located in the support tube.
  • a through hole is formed inside the push rod in the axial direction, and the control wire enters from the proximal end of the through hole and exits from the distal end of the through hole.
  • the delivery device further includes a pre-embedded guide wire that enters from a proximal end of the delivery gap and extends to a distal end of the delivery gap, and the pre-embedded guide wire The distal end of is used to enter from the outside of the stent to the inside of the stent through a window on the stent, and the pre-embedded guide wire is used to guide the branch guide wire from the inside of the stent through the window of the stent.
  • a second locking component is provided on the proximal side of the delivery device, and the second locking component can be used to lock the movement of the embedded guide wire.
  • the embodiment of the second aspect of the present invention provides a conveying system for controlling stepwise release of a stent, comprising a stent and a conveying device, wherein the stent includes a tubular membrane and an annular support frame; the conveying device includes:
  • An outer sheath tube which is hollow and sleeved on the outer side of the sheath core component, a delivery gap exists between the outer sheath tube and the sheath core component, and the distal end of the delivery gap accommodates the stent after contraction;
  • the stent restraint assembly is used to make the stent of the release portion not fully deployed to reduce the outer diameter when the stent is partially released, and to fully expand the stent when the stent is fully released.
  • the tubular covering film is provided with connecting members axially from the proximal end to the distal end, and the connecting members are circumferentially spaced at least two rows.
  • the stent restraint assembly when the stent is in a partially released state, controls to restrain at least two rows of the connecting members together so that the stent is not fully deployed in the circumferential direction. In the fully released state, the stent restraint assembly releases the restraint on the connecting member and the stent is fully deployed.
  • a window is provided on the tubular cover film, and the window is located on the tubular cover film of the release portion when the stent is in a partially released state.
  • the stent restraint assembly includes at least one control wire, the control wire enters from the proximal end of the delivery gap and extends to the distal end of the delivery gap, and the distal end of the control wire The bracket holding the release part in a circumferential direction.
  • the delivery device includes a control handle that is connected to the outer sheath tube, and the control handle controls the outer sheath tube to move axially relative to the sheath core assembly to make the stent contracted It is partially released or completely released.
  • the conveying device for controlling the stepwise release of the stent includes a stent restraint assembly
  • the stent restraint assembly is used to make the release part of the stent not fully deployed to reduce the outer diameter when the stent is partially released, when the stent is fully released Fully extend the stand. Therefore, because the stent of the release part is not fully deployed and the outer diameter is small, the part of the stent and the blood vessel will not be in close contact, so when the position of the stent is not accurate, the stent without the release part will be tightly closed to the blood vessel at this time.
  • the resistance of the sticking device makes it easier for the conveying device to move the support frame.
  • the conveying device in this embodiment is convenient for adjusting the support frame, which is beneficial to saving the time and energy of the operator.
  • FIG. 1 is a perspective view of a conveying device for controlling stepwise release of a stent according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view in one direction of a conveying device for controlling stepwise release of a stent according to an embodiment of the present invention.
  • FIG 3 is a cross-sectional view of the conveying device for controlling stepwise release of the stent according to an embodiment of the present invention, in another direction.
  • FIG. 4 is an enlarged view of a circled part in FIG. 2.
  • FIG. 5 is an enlarged view of a circled part B in FIG. 2.
  • FIG. 6 is an enlarged view of a circled part D in FIG. 3.
  • FIG. 7 is an enlarged view of a circled portion C in FIG. 2.
  • FIG. 8 is an enlarged view of a circled part E in FIG. 3.
  • FIG. 9 is a schematic view of the conveying device for controlling stepwise release of the stent according to an embodiment of the present invention at an angle (the stent is partially released).
  • FIG. 10 is a schematic view of the conveying device for controlling stepwise release of the stent according to an embodiment of the present invention at another angle (the stent is partially released).
  • FIG. 11 is a schematic diagram of a stent in a fully released state according to an embodiment of the present invention.
  • 1000-delivery device 100-sheath core assembly; 110-inner sheath core; 120-outer sheath core tube; 130-lead head; 131-hollow channel; 140-stent fixing assembly; 142-locating sleeve; 143-fixed anchor; 150-sheath core tube fixing piece; 160-sheath core fixing steel sleeve; 170-post release cap; 200-outer sheath tube; 210-transport gap; 220-sheath tube connector; 221-abutment block; 222-joint body 223-distal projection; 300-control handle; 310-support body; 311-long hole; 320-fixed handle; 321-release lock button; 322-hook; 323-button support body; 324-position column ; 330-sliding handle; 332-swivel cover; 333-inward flanging; 334-resistance reduction convex ring; 340-main body block; 400-stent restraint assembly;
  • the end of the delivery device near the operator is the proximal end, and the end relatively far from the operator is the distal end; the end near the heart is the proximal end, and the end relatively far from the heart is the distal end.
  • the delivery device and stent define the proximal and distal ends with different reference objects.
  • An embodiment of the present invention provides a delivery device for controlling stepwise release of a stent, which is used to deliver and control the stepwise release of a stent.
  • the stent is loaded in the delivery device, and when the stent is delivered to a proper position in a blood vessel through the delivery device After that, the delivery device releases the stent step by step.
  • release part of the stent 800 It is located on the proximal side of the stent 800. The rest of the stent 800 is still in the delivery device.
  • the released proximal side of the stent 800 is still bound by the delivery device.
  • the stent 800 is partially released (
  • the outer diameter of the stent 800 in the partially released state is smaller than the diameter of the blood vessel.
  • the position of the stent 800 can be adjusted. When the position is adjusted, the remaining part of the stent 800 is released, and the stent 800 is completely released at this time (see the figure). 11), and was completely released.
  • the number of times of stepwise releasing the stent 800 is not limited to two times, and may be more times.
  • a delivery device 1000 for controlling stepwise release of a stent includes a sheath core assembly 100, an outer sheath tube 200 and a stent restraint assembly 400.
  • the sheath core assembly 100 includes an inner sheath core 110 and an outer sheath core tube 120.
  • the outer sheath core tube 120 is hollow and is sleeved on the inner sheath core. On 110, the outer sheath core tube 120 can slide axially relative to the inner sheath core 110.
  • the conveying device 1000 further includes a guide head 130 and a bracket fixing assembly 140.
  • the guide head 130 is conical, the distal end of the guide head 130 is pointed, and the center of the guide head 130 is along the center.
  • a hollow passage 131 is formed in the axial direction.
  • the distal end of the inner sheath core 110 is fixedly connected to the proximal end of the guide head 130, and the inner sheath core 110 is hollow and communicates with the hollow channel 131 of the guide head 130.
  • the stent fixing assembly 140 is disposed adjacent to the proximal end of the guide head 130.
  • the stent fixing assembly 140 includes a positioning sleeve 142 and a fixing anchor 143, which is fixedly connected to the distal end of the outer sheath core tube 120.
  • the anchor 143 has a columnar structure, and a circle of evenly spaced protrusions is provided on the upper circumferential direction to fix the bare bracket 840 at the proximal end of the bracket 800 (see FIG. 11), thereby positioning the proximal end of the bracket 800, that is, the bracket
  • the proximal end of 800 is sleeved on the anchor 143.
  • the distal end of the positioning sleeve 142 and the guide head 130 are injection-molded and fixedly connected.
  • the positioning sleeve 142 is hollow, and the proximal end portion of the positioning sleeve 142 is sleeved on the fixing anchor 143.
  • a limiting gap exists between the fixing anchor 143 and the inner wall of the positioning sleeve 142, and the proximal end portion of the bracket 800 is located in the limiting gap.
  • the outer sheath tube 200 is hollow and is sleeved on the outside of the sheath core assembly 100, and is specifically sleeved on the outside of the outer sheath core tube 120.
  • the outer sheath tube 200 may be axially opposite to the outer sheath core tube 120. motion.
  • a transport gap 210 exists between the outer sheath tube 200 and the sheath core assembly 100. Specifically, the transport gap 210 is located between the outer sheath tube 200 and the outer sheath core tube 120.
  • the transport gap 210 referred to here refers to the outer The space between the inner wall of the sheath tube 200 and the outer wall of the outer sheath core tube 120.
  • All the anchors 143 and the proximal end of the positioning sleeve 142 are located in the delivery gap 210.
  • the distal end of the delivery gap 210 is used to accommodate the contraction.
  • the bracket 800 is forcibly reduced in volume to be accommodated in the conveyance gap 210 by applying an external force.
  • the bare bracket 840 at the proximal end of the bracket 800 is positioned on the protrusion of the anchor 143, and the bracket 800 is located on the whole. In the conveyance gap 210.
  • the stent 800 from the release portion is closely attached to the blood vessel (the diameter of the stent 800 after the full release is generally greater than about 10% of the blood vessel diameter), which in turn causes The problem that the release of the bracket 800 is inaccurate and the position of the bracket 800 cannot be adjusted again.
  • the bracket restraint assembly 400 is used to make the release part of the release part when the bracket 800 is partially released.
  • the bracket 800 is not fully expanded to reduce the outer diameter of the bracket 800 at the release portion.
  • the part of the stent 800 that is released refers to the part of the stent 800 that is not restricted by the outer sheath 200, that is, the part of the stent 800 that is exposed.
  • the ratio of the outer diameter when the stent 800 of the release portion is not deployed to the outer diameter when the stent 800 of the release portion is fully deployed is less than or equal to 90%. Because the release part of the stent 800 is not fully expanded and the outer diameter is small, the part of the stent 800 and the blood vessel will not be in close contact, so when the position of the stent 800 is not accurate, such as when the circumferential alignment of the stent 800 is inaccurate, For example, the window 811 (see FIG.
  • the delivery device 1000 can relatively easily move the stent 800, such as rotation or axis Direction movement, so as to adjust the position of the bracket 800 conveniently, for example, adjust the circumferential alignment of the bracket 800.
  • the outer sheath 200 can be operated to move axially toward the proximal end of the delivery device 1000, thereby completely releasing the stent 800.
  • the stent 800 is fully deployed and is in close contact with the blood vessel.
  • the use of the conveying device 1000 in this embodiment can facilitate the adjustment of the bracket 800, which is beneficial to saving the time and energy of the operator.
  • the bracket 800 of the release portion can be fully deployed, or the bracket 800 can be fully deployed when the bracket 800 is in a fully released state.
  • the operator may also adjust the position of the bracket 800 by operating the conveying device 1000.
  • the bracket restraint assembly 400 includes at least one control wire 410, and the number of the control wires 410 may be one, two, or more.
  • the material of the control wire 410 may be selected from stainless steel wire.
  • the control wire 410 enters from the proximal end of the delivery gap 210 and extends to the distal end of the delivery gap 210.
  • the stent 800 includes a tubular covering film 810 and an annular support frame 820.
  • the tubular covering film 810 is provided with connecting members 830 axially from the proximal end to the distal end, and the connecting members 830 are arranged at intervals in the circumferential direction. At least two columns.
  • the proximal end of the connecting member 830 is located at the proximal end of the tubular covering film 810
  • the distal end of the connecting member 830 is located at the middle of the tubular covering film 810
  • the tubular covering film 810 is provided with at least one window 811
  • the window 811 is located between the proximal end and the middle portion of the tubular cover film 810.
  • the tubular cover film 810 is released from the proximal end to the distal end, but generally does not exceed the tubular cover film.
  • the window 811 will be located on the bracket 800 of the release part.
  • the control wire 410 binds at least two rows of the connecting members 830 together so that the stent 800 is not fully deployed in the circumferential direction, thereby reducing the outer diameter of the release part of the stent 800.
  • the outer diameter of the stent 800 of the release portion is smaller than the diameter of the blood vessel, the position of the stent 800 can be adjusted, for example, the adjustment window 811 faces the branch blood vessel.
  • the circumferential length between the two rows of connecting members 830 bound by the control wire 410 can reduce the outer diameter of the bracket 800 at the release portion by more than 10%, that is, the outer diameter of the bracket 800 at the release portion is not expanded.
  • the ratio to the outer diameter of the stent 800 when the release portion is fully deployed is less than or equal to 90%.
  • the stent-binding assembly 400 further includes a pull ring 420, and the pull ring 420 is fixedly connected to the proximal end of the control wire 410 to facilitate the operation during operation.
  • the operation of the control wire 410 is controlled.
  • the medical staff can release the restraint of the stent 800 by the control wire 410 by applying a force to the proximal end of the delivery device 1000 through the pull ring 420, thereby completing the release of the restrained part of the stent 800.
  • the delivery device 1000 further includes a first lock assembly 500 for locking the movement of the stent-binding assembly 400 to prevent the control wire 410 from being released by mistake.
  • the first locking component 500 is used to lock the movement of the pull ring 420 to prevent the control wire 410 from restraining the bracket 800 by mistake.
  • the first lock assembly 500 may also be used to lock the movement of the control wire 410 to prevent the control wire 410 from restraining the bracket 800 by mistake.
  • the first locking assembly 500 includes a pull ring fixing member 510 and a near-release screw cap 520.
  • the pull ring fixing piece 510 is connected to the proximal end of the trailing end slide piece 650 (described later) by screwing.
  • the pull ring fixing piece 510 is provided with a through hole for positioning the pull ring 420 and cooperates with the near release screw cap 520.
  • a first groove, the near-release screw cap 520 is rotatably installed at a distal end of the pull ring fixing member 510, and an inner-type distal end of the near-release screw cap 520 is provided with an L-shaped protrusion,
  • the long arm extends in the circumferential direction
  • the short arm of the L-shaped protrusion extends axially toward the distal end from one end of the long arm
  • the L-shaped protrusion surrounds a second groove
  • the distal end of the pull ring 420 is provided with A second protrusion extending outward.
  • the near-release screw cover 520 is rotated to release the second protrusion into the second groove, thereby locking the pull ring 420 in this position.
  • the pull ring 420 cannot drive the control wire 410.
  • the near release cap 520 is rotated and the second protrusion comes out of the second groove, the pull ring 420 can be operated to bring the control wire 410 closer. Moving in the end direction can release the restraint on the bracket 800.
  • the delivery device 1000 includes a control handle 300, which is connected to the outer sheath 200.
  • the control handle 300 is used for It is used to control the axial movement of the outer sheath tube 200 relative to the sheath core assembly 100, and is specifically used to control the axial movement of the outer sheath tube 200 relative to the outer sheath core tube 120.
  • the left and right directions are axial. Therefore, the outer sheath tube 200 is controlled by the control handle 300 to move axially, so that the stent 800 located in the delivery gap 210 after contraction is in a partially released state or a fully released state.
  • FIG. 1 and FIG. 2 The delivery device 1000 includes a control handle 300, which is connected to the outer sheath 200.
  • the control handle 300 is used for It is used to control the axial movement of the outer sheath tube 200 relative to the sheath core assembly 100, and is specifically used to control the axial movement of the outer sheath tube 200 relative to the outer sheath core tube 120.
  • the left and right directions are
  • the partially released state refers to a state in which the proximal end portion of the stent 800 is released, and the stent 800 in the released portion is no longer restricted by the outer sheath 200 and is used to adjust the position of the stent 800.
  • the fully released state means that the outer sheath 200 no longer restricts the entire stent 800, that is, no outer sheath 200 exists on the outside of the stent 800 at this time.
  • the outer sheath tube 200 is fixedly connected to the sheath tube connector 220.
  • the outer side of the proximal end of the outer sheath 200 is fixedly connected to the sheath joint 220.
  • the control handle 300 includes a support body 310, a fixed handle 320, and a slide handle 330.
  • the support body 310 is hollow inside and is provided with the sheath joint 220 therein.
  • the fixed handle 320 is installed outside the distal end of the support body 310 and the two are fixedly connected.
  • the sliding handle 330 is installed outside the support body 310, and the sliding handle 330 is disposed adjacent to the proximal end of the fixed handle 320.
  • the sliding handle 330 is rotatable outside the support body 310 and drives the sheath joint 220 to move in the axial direction, that is, the rotation of the sliding handle 330 is converted into the axial movement of the sheath joint 220.
  • the support body 310 is provided with an elongated hole 311 extending in the axial direction, and an outer side of the support body 310 is sleeved with a main block 340 at the corresponding elongated hole 311.
  • the sheath joint 220 includes a joint body 222, and an abutment block 221 and a distal protrusion 223 provided on the joint body 222.
  • the abutment block 221 and the distal protrusion 223 respectively protrude from the elongated hole 311.
  • the proximal end and the distal end of the main dental block 340 are pressed against the main dental block 340 to restrict the axial movement of the main dental block 340 relative to the sheath joint 220.
  • the main body block 340 is located between the abutment block 221 and the distal projection 223 in the axial direction.
  • the inside of the sliding handle 330 is provided with an internal thread
  • the outside of the main body block 340 is provided with an external thread. The thread is engaged with the external thread.
  • the sliding handle 330 can also slide axially on the support body 310, that is, the sliding handle 330 can slide axially relative to the fixed handle 320.
  • a release button 321 is embedded in the fixed handle 320, and the release button 321 faces the slide handle 330 side.
  • a hook 322 is extended, and a button support body 323 is provided below the release button 321.
  • the button support body 323 is fixed on the support body 310. Relative positioning is provided between the release button 321 and the button support body 323, respectively.
  • a driving spring is sleeved on the post 324 and the two positioning posts 324.
  • the driving spring is located between the release button 321 and the button support body 323 to drive the hook 322 in place.
  • the hook 322 hooks the sliding handle 330 so that the sliding handle 330 is disposed adjacent to the fixed handle 320 and prevents the sliding handle 330 from sliding in the axial direction.
  • the sliding handle 330 includes a rotating cover 332, which is disposed at a distal end of the sliding handle 330.
  • the rotating cover 332 has an inward flange 333, and the hook 322 can extend into and engage with the inward flange 333.
  • One side of the inward flange 333 engaging the hook 322 can be regarded as a circular positioning groove, that is, The hook 322 is located in the positioning slot, thereby limiting the axial position of the hook 322, and allowing the sliding handle 330 to rotate relative to the fixed handle 320.
  • the rotation cover 332 is provided with two concentrically arranged drag-reducing convex rings 334, which are located on the distal side wall of the rotary cover 332.
  • the handle is fixed by the drag-reducing convex ring 334.
  • the surface contact between the 320 and the sliding handle 330 is changed to line contact, which greatly reduces the contact area between the two, which reduces the resistance during relative movement, and the release process is more stable and accurate.
  • the conveying device 1000 further includes a push rod 610 and a support tube 620.
  • the support tube 620 is located between the outer sheath tube 200 and the outer sheath core tube 120. That is, the support tube 620 is at least partially located in the conveyance gap 210, and the support tube 620 plays a role of increasing support.
  • the push rod 610 is located between the support tube 620 and the outer sheath core tube 120, and the distal end of the push rod 610 is located in the delivery gap 210.
  • the distal end of the push rod 610 is used to abut against the stent 800 to prevent the stent 800 from moving toward the proximal end of the delivery gap 210.
  • the putter 610 also plays a supporting role.
  • a through hole 611 is formed inside the push rod 610 in the axial direction, and the through hole can be used to control the passage of the wire 410 and the embedded guide wire 710, specifically, the control wire 410 and the embedded wire
  • the guide wire 710 enters from the proximal end of the through-hole and exits from the distal end of the through-hole.
  • the conveying device 1000 further includes a push rod fixing member 630 and a tail end fixing member 640.
  • the push rod fixing member 630 is fixedly connected to the proximal ends of the push rod 610 and the support tube 620.
  • the push rod The distal end of the fixing member 630 is located on the inner side of the proximal end of the support body 310, and the distal end of the push rod fixing member 630 is fixedly connected to the proximal end of the support body 310.
  • the tail end fixing member 640 is sleeved on the outside of the proximal end of the support body 310, and the distal end of the tail end fixing member 640 is fixedly connected to the proximal end of the support body 310.
  • the push rod fixing member 630 extends an interface, the interface is connected to one end of the TPU hose 3001, and the other end of the TPU hose 3001 is connected to a three-way valve 3002.
  • the proximal end of the tail end fixing member 640 is fixedly connected to the tail end slide member 650, and the distal end of the tail end slide member 650 is located inside the tail end fixing member 640.
  • the inside of the end slide 650 is provided with a sheath and core tube fixing member 150, which is located at the approximate middle position of the tail end slide 650, and the sheath and core tube fixing member 150 and the outer sheath and core tube 120
  • the proximal outside is fixedly connected.
  • An outer cover 680 is provided near the proximal end of the tail-end slideway piece 650, and the outer cover 680 is sleeved on the tail-end slideway piece 650.
  • the proximal end of the trailing slide member 650 is provided with a sheath core fixing steel sleeve 160 and a rear release screw cap 170.
  • the sheath core fixing steel sleeve 160 is located in the tail end slide 650, and the sheath core fixing steel sleeve 160 is fixedly connected to the inner sheath core 110 and is located outside the inner sheath core 110; the rear release screw cap 170 is located at the tail end slide The outside of the proximal side of the channel member 650.
  • the rear release screw cap 170 is fixedly connected to the sheath core fixing steel sleeve 160, and a long axially extending hole is provided on the proximal side of the tail slide member 650.
  • the rear release screw cap 170 can drive the sheath core to be fixed.
  • the steel sleeve 160 moves in the axial direction within the range of the long hole, thereby controlling the rear release of the bracket 800.
  • a proximal end of the trailing end slide member 650 is fixedly connected to a distal end of the pull ring fixing member 510.
  • the proximal end of the inner sheath core 110 is fixedly connected to the Luer joint 670.
  • the delivery device 1000 further includes an embedded guide wire 710. The proximal end of the delivery gap 210 enters and extends to the distal end of the delivery gap 210.
  • the distal end of the embedded guide wire 710 is used to enter from the outside of the stent 800 to the inside of the stent 800 through the window 811 on the stent 800, and the embedded guide wire 710 is used to guide the branch guide wire to pass through the inside of the stent 800.
  • the connection between the embedded guide wire 710 and the branch guide wire can be released at this time. Thereafter, since the window 811 is facing the branch blood vessel, the user continues to push the branch guide wire, and the branch guide wire can enter the branch blood vessel. Thereafter, the branch stent can be guided to the branch blood vessel through the branch guide wire.
  • the distal end of the embedded guide wire passes through the push rod.
  • a second locking component 720 is provided at the proximal end of the conveying device 1000. Specifically, the second locking component 720 is disposed on the trailing-side slide piece 650, and the second locking The assembly 720 can be used to lock the movement of the embedded guide wire 710.
  • the inside of the tail end fixing member 640 forms a hollow tail runner 651 in the axial direction, the tail runner 651 communicates with the conveyance gap 210, and the embedded guide wire 710 Enter the trail 651.
  • the second locking component 720 includes a wire fixing member 721, a fixing convex ring 722 fixed on the tail slide member 650, and a blocking piece 723 fixed in the tail slide 651.
  • the embedded guide wire 710 enters the tail slideway 651 from the gap between the blocking piece 723 and the wire fixing member 721.
  • the wire fixing member 721 and the fixing convex ring 722 can be movably connected by threads. When the wire fixing member 721 presses the embedded guide wire 710 against the blocking piece 723, the movement of the embedded guide wire 710 is blocked, thereby preventing the embedded guide wire 710 from being pulled to an inappropriate position due to an error.
  • An embodiment of the present invention also provides a conveying system for controlling stepwise release of a stent, see FIGS. 1-4 and 9-11.
  • the conveying system 2000 for controlling stepwise release of a stent includes a stent 800 and a conveying device 1000.
  • the stent 800 includes a tubular covering film 810 and an annular support frame 820.
  • the delivery device includes a sheath core assembly 100, an outer sheath tube 200, and a stent restraint assembly 400.
  • the outer sheath tube 200 is hollow and is sleeved on the sheath core assembly 100.
  • a delivery gap 210 between the outer sheath tube 200 and the sheath core assembly 100, and the distal end of the delivery gap 210 accommodates the stent 800 after contraction; when the stent 800 is partially released, the stent binds the component 400 causes the release of the bracket 800 not to fully expand to reduce the outer diameter, and causes the bracket 800 to fully expand when the bracket 800 is in a fully released state.
  • the tubular covering film 810 is provided with connecting members 830 in the axial direction from the proximal end to the distal end.
  • the connecting members 830 are spaced at least two rows in the circumferential direction.
  • the connecting members 830 are flexible connecting rings.
  • One row can be provided with 1-6 connectors, preferably 3-5. Multiple connectors in axial rows can prevent the stent from shrinking when the conveyor is used to restrain the components.
  • the stent restraint assembly 400 controls to tie at least two rows of the connecting members 830 together so that the stent 800 is not fully deployed in the circumferential direction, and the stent is restrained when the stent 800 is fully released. The assembly 400 releases the restraint of the connecting member 830 and the bracket 800 is fully deployed.
  • a window 811 is provided on the tubular covering film 810, and the window 811 is located on the tubular covering film of the releasing portion when the bracket 800 is in a partially released state.
  • the specific structure of the stent 800 in this embodiment is described in detail in CN201711483955.7 previously applied by the applicant, and the disclosure of this document is incorporated herein by reference.
  • the stent-binding assembly 400 includes at least one control wire 410 that enters from the proximal end of the delivery gap 210 and extends to the distal end of the delivery gap 210.
  • the support 800 is restrained in the circumferential direction by the end, specifically the control wire 410 restrains at least two rows of the connecting members 830 together so that the support 800 is not fully deployed in the circumferential direction.
  • the delivery device further includes a control handle 300, which is connected to the outer sheath tube 200.
  • the control handle 300 controls the outer sheath tube 200 to move axially relative to the sheath core assembly 100 to make the contracted
  • the bracket 800 is in a partially released state or a fully released state.
  • the conveying device has been described in detail in this embodiment, and will not be repeated here.

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Abstract

一种控制支架(800)分步释放的输送系统(2000)，包括支架(800)和输送装置(1000)，输送装置(1000)包括：鞘芯组件(100)；外鞘管(200)，其中空并套接在鞘芯组件(100)外侧，外鞘管(200)与鞘芯组件(100)之间存在输送间隙(210)，输送间隙(210)的远端用于容纳收缩后的支架(800)；支架束缚组件(400)，其用于当支架(800)呈部分释放状态时使释放部分的支架(800)未完全展开以缩小外径，以及用于当支架(800)呈完全释放状态时使支架(800)完全展开。输送装置(1000)便于调整支架(800)的位置。

Description

控制支架分步释放的输送装置及输送系统
相关申请的交叉引用
本发明要求于2018年8月9日提交至中国国家知识产权局，申请号为201810899863.5和201821276305.5、发明名称为“控制支架分步释放的输送装置及输送系统”，以及申请号为201810899886.6和201821276778.5、发明名称为“一种输送装置”的中国专利申请的优先权，上述专利申请的全部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技术领域，特别涉及一种控制支架分步释放的输送装置及输送系统。
背景技术
主动脉瘤是指主动脉壁局部或弥漫性的异常扩张，压迫周围器官而引起症状。主动脉瘤按结构主要可分为真性主动脉瘤、假性主动脉瘤和夹层主动脉瘤。主动脉瘤引起血管内侧压增高，故呈进行性膨大，若长期发展，最后终归破裂，瘤体越大，破裂的可能性越大。据统计，若不作手术治疗，90％胸主动脉瘤患者在5年内死亡，75％腹主动脉瘤患者在5年内死亡。
胸主动脉腔内修复术(TEVAR)目前已用于治疗主动脉夹层、主动脉穿通性溃疡、主动脉壁间血肿、胸主动脉瘤及假性动脉瘤等多种主动脉扩张性病变。而腹主动脉腔内修复术(EVAR)自20世纪90年代报道首例被用于治疗腹主动脉瘤以来，因其创伤小、手术及住院时间短、术后恢复快、围手术期病死率及并发症发生率低等优点，在短短的20年内迅速发展。
TEVAR及EVAR常采用可膨胀的支架作为治疗器械，为了与待修复的血管保持良好的贴壁性，支架释放后的直径一般要大于血管直径的10％左右，而完全释放后的支架由于与血管紧贴，在释放位置不准确的情况下，无法重新调整，因此，要求手术操作的医疗人员具有丰富的经验，并在支架释放前花费较多的时间和精力去精确定位支架的释放角度，需要花费较多的时间。因此我们有必要开发一种分步释放的输送装置及输送系统，可以便于调整支架的位置。
发明内容
本发明实施例所要解决的技术问题在于，提供一种控制支架分步释放的输送装置及输送 系统。可使支架呈部分释放状态时方便调整支架的位置，有利于节省时间和精力。
为了解决上述技术问题，本发明第一方面实施例提供了一种控制支架分步释放的输送装置，用于输送并分步释放支架，包括：
鞘芯组件；
外鞘管，其中空并套接在鞘芯组件外侧，所述外鞘管与鞘芯组件之间存在输送间隙，所述输送间隙的远端用于容纳收缩后的支架；
支架束缚组件，其用于当支架呈部分释放状态时使释放部分的支架未完全展开以缩小外径，以及用于当支架呈完全释放状态时使支架完全展开。
在本发明第一方面一实施例中，所述输送装置还包括控制手柄，其与外鞘管连接，所述控制手柄控制所述外鞘管相对鞘芯组件作轴向运动，以使收缩后的支架呈部分释放状态或者完全释放状态。
在本发明第一方面一实施例中，所述支架束缚组件包括至少一根控制丝，所述控制丝由输送间隙的近端进入并延伸到输送间隙的远端，所述控制丝的远端用于在周向上束缚住释放部分的支架。
在本发明第一方面一实施例中，所述支架束缚组件还包括拉环，所述拉环与所述控制丝的近端固定连接，通过拉环向输送装置的近端施力以解除控制丝对支架的束缚。
在本发明第一方面一实施例中，所述输送装置还包括第一锁定组件，所述第一锁定组件用于锁定支架束缚组件的运动以防止误解除控制丝对支架的束缚。
在本发明第一方面一实施例中，所述外鞘管外侧固定连接鞘管接头；所述控制手柄包括：
支撑主体，其内部设有所述鞘管接头，当对鞘管接头施加轴向作用力时其在支撑主体内沿轴向运动以带动外鞘管作轴向运动；
固定手柄，其安装在支撑主体远端的外侧并且两者固定连接；
滑动手柄，其安装在支撑主体外侧，所述滑动手柄邻近固定手柄的近端设置，所述滑动手柄在支撑主体外侧可转动并带动所述鞘管接头沿轴向运动。
在本发明第一方面一实施例中，所述支撑主体上设有沿轴向延伸的长条孔，所述支撑主体的外侧在对应所述长条孔处套设有主体牙块，所述鞘管接头包括接头主体，和设于所述接头主体上的抵接块及远端凸块，所述抵接块和所述远端凸块分别从所述长条孔中伸出并抵住主体牙块的近端和远端以用于限制主体牙块相对鞘管接头作轴向移动，所述滑动手柄的内侧设有内螺纹，所述主体牙块的外侧设有外螺纹，内螺纹与外螺纹啮合，当滑动手柄转动时经由主体牙块、抵接块和远端凸块带动鞘管接头沿轴向运动，进而带动外鞘管作轴向运动。
在本发明第一方面一实施例中，所述滑动手柄可在支撑主体上沿轴向滑动，所述固定手柄上嵌装有释锁按钮，释锁按钮向滑动手柄一侧延伸出卡勾，所述卡勾勾住滑动手柄以使滑动手柄紧邻固定手柄设置且阻止滑动手柄在轴向上滑动。
在本发明第一方面一实施例中，所述输送装置还包括推杆，所述推杆的远端位于输送间隙中，当控制手柄控制外鞘管相对鞘芯组件沿轴向向近端运动时，所述推杆用于抵住支架以防止支架向输送间隙的近端移动。
在本发明第一方面一实施例中，所述输送装置还包括支撑管，所述支撑管的远端位于所述输送间隙中，所述推杆位于支撑管内。
在本发明第一方面一实施例中，所述推杆的内部沿轴向形成贯通孔，所述控制丝从贯通孔的近端进入，并从贯通孔的远端穿出。
在本发明第一方面一实施例中，所述输送装置还包括预埋导丝，所述预埋导丝由输送间隙的近端进入并延伸到输送间隙的远端，所述预埋导丝的远端用于从支架的外侧经由支架上的窗口进入到支架的内侧，所述预埋导丝用于引导分支导丝从支架的内侧经由支架的窗口穿出。
在本发明第一方面一实施例中，所述输送装置的近侧设有第二锁定组件，所述第二锁定组件可用于锁止所述预埋导丝的运动。
本发明第二方面实施例提供了一种控制支架分步释放的输送系统，包括支架和输送装置，其中，所述支架包括管状覆膜和环形支撑架；所述输送装置包括：
鞘芯组件；
外鞘管，其中空并套接在鞘芯组件外侧，所述外鞘管与鞘芯组件之间存在输送间隙，所述输送间隙的远端容纳收缩后的所述支架；
支架束缚组件，其用于当所述支架呈部分释放状态时支架束缚组件使释放部分的支架未完全展开以缩小外径，以及用于当支架呈完全释放状态时使支架完全展开。
在本发明第二方面一实施例中，所述管状覆膜上由近端向远端轴向设置有连接件，所述连接件周向间隔设置至少两列。
在本发明第二方面一实施例中，当所述支架呈部分释放状态时所述支架束缚组件控制将至少两列所述连接件束缚在一起以使支架在周向上未完全展开，当支架呈完全释放状态时支架束缚组件解除对连接件的束缚使支架完全展开。
在本发明第二方面一实施例中，所述管状覆膜上设有窗口，当所述支架呈部分释放状态时所述窗口位于释放部分的管状覆膜上。
在本发明第二方面一实施例中，所述支架束缚组件包括至少一根控制丝，所述控制丝由输送间隙的近端进入并延伸到输送间隙的远端，所述控制丝的远端在周向上束缚住释放部分的支架。
在本发明第二方面一实施例中，所述输送装置包括控制手柄，其与外鞘管连接，所述控制手柄控制所述外鞘管相对鞘芯组件作轴向运动以使收缩后的支架呈部分释放状态或者完全释放状态。
实施本发明实施例，具有如下有益效果：
由于所述控制支架分步释放的输送装置包括支架束缚组件，所述支架束缚组件用于当支架呈部分释放状态时使释放部分的支架未完全展开以缩小外径，当支架呈完全释放状态时使支架完全展开。从而，由于释放部分的支架未完全展开，外径较小，该部分支架与血管不会紧贴，从而当支架释放时的位置不准确时，此时没有释放部分的支架完全展开时与血管紧贴时的阻力，输送装置可以比较容易的带动支架运动，而通过本实施例中的输送装置调整支架方便，有利于节省操作人员的时间和精力。
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是本发明一实施例控制支架分步释放的输送装置的立体图。
图2是本发明一实施例控制支架分步释放的输送装置的在一个方向的剖视图。
图3是本发明一实施例控制支架分步释放的输送装置的在另一个方向的剖视图。
图4是图2中A圆圈部分的放大图。
图5是图2中B圆圈部分的放大图。
图6是图3中D圆圈部分的放大图。
图7是图2中C圆圈部分的放大图。
图8是图3中E圆圈部分的放大图。
图9是本发明一实施例控制支架分步释放的输送装置在一个角度的示意图(支架呈部分释放状态)。
图10是本发明一实施例控制支架分步释放的输送装置在另一个角度的示意图(支架呈部分释放状态)。
图11是本发明一实施例支架处于完全释放状态时的示意图。
图示标号：
1000-输送装置；100-鞘芯组件；110-内鞘芯；120-外鞘芯管；130-引导头；131-中空通道；140-支架固定组件；142-定位套；143-固定锚；150-鞘芯管固定件；160-鞘芯固定钢套；170-后释放旋盖；200-外鞘管；210-输送间隙；220-鞘管接头；221-抵接块；222-接头主体；223-远端凸块；300-控制手柄；310-支撑主体；311-长条孔；320-固定手柄；321-释锁按钮；322-卡勾；323-按钮支撑体；324-定位柱；330-滑动手柄；332-旋转盖；333-内翻边；334-减阻凸环；340-主体牙块；400-支架束缚组件；410-控制丝；420-拉环；500-第一锁定组件；510-拉环固定件；520-近释放旋盖；610-推杆；611-贯通孔；615-尾部滑道；620-支撑管；630-推杆固定件；640-尾端固定件；650-尾端滑道件；670-鲁尔接头；680-外盖；710-预埋导丝；720-第二锁定组件；721-丝固定件；722-固定凸环；723-挡片；800-支架；810-管状覆膜；811-窗口；820-环形支撑架；830-连接件；840-裸支架；2000-输送系统；3001-TPU软管；3002-三通阀。
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。
本申请说明书、权利要求书和附图中出现的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，术语“第一”、“第二”和“第三”等是用于区别不同的对象，而并非用于描述特定的顺序。
为了描述清晰，以下以输送装置靠近操作者的一端为近端，相对远离操作者的一端为远端；支架靠近心脏的一端为近端，相对远离心脏的一端为远端。输送装置和支架是通过不同的参照物定义近端和远端的。
本发明实施例提供一种控制支架分步释放的输送装置，其用于输送并控制分步释放支架，在这里，支架是装载在输送装置内，当支架通过输送装置输送到血管中的合适位置后，输送装置对支架进行分步释放，具体为：请参见图9、图10首先释放部分支架800，将部分的支架800从输送装置的外鞘管200中释放出来，这里释放部分的支架800是位于支架800的近端这一侧，其余部分的支架800还在输送装置中，同时，释放出来的支架800的近端一侧仍通过输送装置束缚住，此时支架800呈部分释放状态(后面有说明)，处于部分释放状态的支架800的外径小于血管直径，可以对支架800进行位置调整，当调整到位后，释放剩余部分的支架800，此时支架800被完全释放(请参见图11)，并呈完全释放状态。另外，在本发明的其他实施例中，分步释放支架800的次数不限于两次，也可以是更多次。
请参见图1-图3，控制支架分步释放的输送装置1000包括鞘芯组件100、外鞘管200和支架束缚组件400。
具体地，在本实施例中，请参见图2及图4，所述鞘芯组件100包括内鞘芯110和外鞘芯管120，所述外鞘芯管120中空且套接在内鞘芯110上，所述外鞘芯管120可相对所述内鞘芯110轴向滑动。
在本实施例中，所述输送装置1000还包括引导头130和支架固定组件140，所述引导头130呈圆锥形，所述引导头130的远端为尖的，所述引导头130中心沿轴向形成中空通道131。内鞘芯110的远端与引导头130的近端固定连接，且内鞘芯110中空并与引导头130的中空通道131连通。邻近引导头130的近端设置所述支架固定组件140，所述支架固定组件140包括定位套142和固定锚143，所述固定锚143与外鞘芯管120的远端固定连接，所述固定锚143呈柱状结构，其上周向设有一圈均匀间隔分布的凸起，用于固定支架800近端处的裸支架840(请参见图11)，从而对支架800的近端进行定位，也即支架800的近端是套接在固定锚143上。所述定位套142的远端与所述引导头130注塑固定连接，所述定位套142中空，所述定位套142的近端部分套在固定锚143上。所述固定锚143与定位套142内壁之间存在限位间隙，支架800的近端部分位于该限位间隙中。
在本实施例中，所述外鞘管200中空并套接在鞘芯组件100外侧，具体套接在外鞘芯管120外侧，所述外鞘管200可相对所述外鞘芯管120轴向运动。所述外鞘管200与鞘芯组件100之间存在输送间隙210，具体地，所述输送间隙210位于外鞘管200与外鞘芯管120之间，这里所指的输送间隙210是指外鞘管200内壁与外鞘芯管120外壁之间的空间，所述固定锚143全部、定位套142近端部分位于所述输送间隙210中，所述输送间隙210的远端用于容纳收缩后的支架800，在这里，支架800是被施加外力强迫缩小体积以容纳到输送间隙210 中，所述支架800近端的裸支架840定位在固定锚143的凸起上，所述支架800整体位于输送间隙210中。
为了防止支架800呈部分释放状态时，释放部分的支架800完全展开，从而导致释放部分的支架800与血管紧贴(支架800完全释放后的直径一般要大于血管直径的10％左右)，进而导致支架800释放不准确而无法重新调整支架800位置的问题，在本实施例中，请参见图1-图3、图8，支架束缚组件400用于当支架800呈部分释放状态时使释放部分的支架800未完全展开，以缩小释放部分的支架800的外径。这里释放部分的支架800是指未受到外鞘管200限制住的支架800的部分，也即露出来的那部分支架800。在这里，释放部分的支架800未展开时的外径与释放部分的支架800完全展开时的外径之比小于或等于90％。由于释放部分的支架800未完全展开，外径较小，该部分支架800与血管不会紧贴，从而在支架800释放时的位置不准确时，例如支架800的周向对位不准确时，例如支架800上的窗口811(请参见图10)位置不准确，此时，由于释放部分的支架800与血管之间不存在阻力，输送装置1000可以比较容易的带动支架800运动，例如转动或轴向运动，从而方便调整支架800位置，例如调整支架800的周向对位。当调整支架800到位后，可以操作外鞘管200沿轴向朝输送装置1000的近端运动，从而完全释放支架800，此时支架800完全展开，并与血管紧贴。利用本实施例中的输送装置1000可方便调整支架800，有利于节省操作人员的时间和精力。在本实施例中，支架束缚组件400可以在支架800调整到位后即可使释放部分的支架800完全展开，也可以是支架800呈完全释放状态时再使支架800完全展开。另外，在本发明的其他实施例中，在支架800的轴向位置不准确时，操作者也可以通过操作输送装置1000对支架800的位置进行调整。
请继续参见图1-图3、图8，在本实施例中，所述支架束缚组件400包括至少一根控制丝410，在这里控制丝410的数量可以是一根、两根或者多根，所述控制丝410的材料可选自不锈钢丝，所述控制丝410由输送间隙210的近端进入并延伸到输送间隙210的远端。
请参见图11，所述支架800包括管状覆膜810和环形支撑架820，所述管状覆膜810上由近端向远端轴向设置有连接件830，所述连接件830周向间隔设置至少两列。较佳的，所述连接件830的近端位于管状覆膜810的近端，所述连接件830的远端位于管状覆膜810的中部，所述管状覆膜810上设有至少一个窗口811，所述窗口811位于管状覆膜810的近端和中部之间，当支架800呈部分释放状态时，此时管状覆膜810由近端向远端开始释放，但是一般不会超过管状覆膜810的中部位置，此时窗口811会位于释放部分的支架800上。所述控制丝410将至少两列所述连接件830束缚在一起以使支架800在周向上未完全展开，从 而缩小了释放部分支架800的外径。在所述释放部分的支架800的外径小于血管直径时，可有利于调整支架800的位置，例如调整窗口811对着分支血管。较佳的，控制丝410束缚住的两列连接件830之间的周向长度可以减小释放部分的支架800的10％以上的外径，也即释放部分的支架800未展开时的外径与释放部分的支架800完全展开时的外径之比小于或等于90％。
在本实施例中，请参阅图1、图2、图8，所述支架束缚组件400还包括拉环420，所述拉环420与所述控制丝410的近端固定连接，方便手术时对控制丝410的操作。具体地，医疗人员通过拉环420向输送装置1000的近端施力可以解除控制丝410对支架800的束缚，从而完成支架800被束缚部分的释放。
为了增加器械使用的安全性，在本实施例中，所述输送装置1000还包括第一锁定组件500，所述第一锁定组件500用于锁定支架束缚组件400的运动以防止误解除控制丝410对支架800的束缚。在本实施例中，所述第一锁定组件500用于锁定拉环420的运动以防止误解除控制丝410对支架800的束缚。另外，在本发明的其他实施例中，所述第一锁定组件500还可以用于锁定控制丝410的运动以防止误解除控制丝410对支架800的束缚。在本实施例中，第一锁定组件500包括拉环固定件510、近释放旋盖520。拉环固定件510通过螺纹连接在尾端滑道件650(其后有描述)的近端，所述拉环固定件510设有定位拉环420的通孔、与近释放旋盖520配合的第一凹槽，所述近释放旋盖520可旋转的安装在拉环固定件510的远端，所述近释放旋盖520内侧远端设有L型凸起，所述L型凸起的长臂在周向上延伸，L型凸起的短臂由长臂的一端在轴向上朝远端延伸，所述L型凸起围成一个第二凹槽，拉环420的远端设置有向外延伸的第二凸起。当将拉环420插入通孔固定后，旋转近释放旋盖520，使第二凸起进入第二凹槽中，从而将拉环420锁定在该位置，此时拉环420不能带动控制丝410向近端方向移动，防止因失误解除对支架800的束缚，当旋转近释放旋盖520，使第二凸起从第二凹槽中出来时，可以操作拉环420，带动控制丝410向近端方向移动，可以解除对支架800的束缚。
为了控制对支架800的分步释放，在本实施例中，请参见图1、图2，所述输送装置1000包括控制手柄300，控制手柄300与外鞘管200连接，所述控制手柄300用于控制所述外鞘管200相对鞘芯组件100作轴向运动，具体用于控制所述外鞘管200相对所述外鞘芯管120作轴向运动，其中，在图1示意的图中左右方向为轴向。从而，通过控制手柄300控制所述外鞘管200作轴向运动，使收缩后位于输送间隙210中的支架800呈部分释放状态或者完全释放状态。在这里，请参见图9、图10，部分释放状态是指支架800近端部分被释放出来， 释放部分的支架800不再受到外鞘管200的限制，用于调整支架800位置时的状态。请参见图11，完全释放状态是指外鞘管200不再对整个支架800起限制作用，也即此时支架800的外侧没有外鞘管200存在。
为了调节外鞘管200的轴向位置，在本实施例中，请参见图1、图2、图5，所述外鞘管200与鞘管接头220固定连接。在本实施例中，外鞘管200的近端外侧与鞘管接头220固定连接，当鞘管接头220沿轴向运动时，所述鞘管接头220会带动所述外鞘管200沿轴向运动。所述控制手柄300包括支撑主体310、固定手柄320和滑动手柄330，所述支撑主体310内部中空并且内部设有所述鞘管接头220。当对鞘管接头220施加轴向作用力时，所述鞘管接头220在支撑主体310内沿轴向运动以带动外鞘管200作轴向运动。所述固定手柄320安装在支撑主体310远端的外侧并且两者固定连接。所述滑动手柄330安装在支撑主体310外侧，所述滑动手柄330邻近固定手柄320的近端设置。所述滑动手柄330在支撑主体310外侧可转动并带动所述鞘管接头220沿轴向运动，也即通过滑动手柄330的转动转换为鞘管接头220的轴向运动。
具体而言，所述支撑主体310上设有沿轴向延伸的长条孔311，所述支撑主体310的外侧在对应长条孔311处套设有主体牙块340。所述鞘管接头220包括接头主体222，和设于接头主体222上的抵接块221及远端凸块223，所述抵接块221和远端凸块223分别从长条孔311伸出并抵住主体牙块340的近端和远端，以用于限制主体牙块340相对鞘管接头220作轴向移动。也即主体牙块340在轴向上位于抵接块221与远端凸块223之间，所述滑动手柄330的内侧设有内螺纹，所述主体牙块340的外侧设有外螺纹，内螺纹与外螺纹啮合，当滑动手柄330转动时，主体牙块340在滑动手柄330的驱动下沿轴向运动，从而带动抵接块221和远端凸块223在长条孔311中沿轴向滑动，进而带动外鞘管200作轴向运动，从而可以使支架800处于部分释放状态或完全释放状态。
在本实施例中，所述滑动手柄330还可以在支撑主体310上沿轴向滑动，也即滑动手柄330可以相对固定手柄320沿轴向滑动。为了保持滑动手柄330的轴向位置，进一步加强手术的安全性，在本实施例中，请参阅图6，固定手柄320上嵌装有释锁按钮321，释锁按钮321向滑动手柄330一侧延伸出卡勾322，释锁按钮321的下方设有按钮支撑体323，所述按钮支撑体323固定在支撑主体310上，释锁按钮321与按钮支撑体323之间分别设有位置相对的定位柱324，两定位柱324上套设有驱动弹簧，驱动弹簧位于释锁按钮321与按钮支撑体323之间，以驱使卡勾322就位。所述卡勾322勾住滑动手柄330以使滑动手柄330紧邻固定手柄320设置，且阻止滑动手柄330在轴向上滑动。具体而言，滑动手柄330包括旋转 盖332，所述旋转盖332位于滑动手柄330的远端设置。所述旋转盖332具有内翻边333，卡勾322可伸入并卡合在内翻边333处，内翻边333卡合卡勾322的一侧即可视为环形的定位槽，也即卡勾322是位于定位槽中，从而限制了卡勾322的轴向位置，又允许滑动手柄330相对于固定手柄320旋转。在本实施例中，旋转盖332上设有两道同心布置的减阻凸环334，所述减阻凸环334位于旋转盖332的远端侧壁上，通过减阻凸环334，固定手柄320与滑动手柄330之间由面接触变为线接触，大大减小两者间的接触面积，使其在相对运动时的阻力减小，释放过程更加平稳和准确。
在本实施例中，请参见图1-图3、图7，所述输送装置1000还包括推杆610和支撑管620，所述支撑管620位于外鞘管200和外鞘芯管120之间，也即支撑管620至少部分位于输送间隙210中，所述支撑管620起到增加支撑的作用。所述推杆610位于支撑管620和外鞘芯管120之间，所述推杆610的远端位于输送间隙210中。当控制手柄300控制外鞘管200相对鞘芯组件100作沿轴向向近端运动时，所述推杆610的远端用于抵住支架800以防止支架800向输送间隙210的近端移动，而且，所述推杆610也起到支撑的作用。另外，在本实施例中，所述推杆610的内部沿轴向形成贯通孔611，所述贯通孔可以用于控制丝410、预埋导丝710的通过，具体为控制丝410、预埋导丝710从贯通孔的近端进入，从贯通孔的远端穿出。
在本实施例中，所述输送装置1000还包括推杆固定件630和尾端固定件640，所述推杆固定件630与推杆610、支撑管620的近端固定连接，所述推杆固定件630的远端位于支撑主体310近端的内侧，所述推杆固定件630的远端与所述支撑主体310的近端固定连接。所述尾端固定件640套接在支撑主体310近端的外部，所述尾端固定件640的远端与所述支撑主体310的近端固定连接。另外，所述推杆固定件630延伸出一个接口，所述接口与TPU软管3001一端连接，TPU软管3001另一端与一个三通阀3002连接。
在本实施例中，所述尾端固定件640的近端固定连接尾端滑道件650，所述尾端滑道件650的远端位于所述尾端固定件640的内侧，所述尾端滑道件650的内部设有鞘芯管固定件150，所述鞘芯管固定件150位于尾端滑道件650的近似中部位置，所述鞘芯管固定件150与外鞘芯管120近端的外侧固定连接。靠近所述尾端滑道件650的近端设置有外盖680，所述外盖680套接在尾端滑道件650上。
在本实施例中，请参见图1-图3、图7、图8，所述尾端滑道件650的近端一侧设有鞘芯固定钢套160和后释放旋盖170，所述鞘芯固定钢套160位于尾端滑道件650内，所述鞘芯固定钢套160与内鞘芯110固定连接并位于内鞘芯110的外部；所述后释放旋盖170位于尾端滑道件650近端一侧的外部。所述后释放旋盖170与鞘芯固定钢套160固定连接，所述尾 端滑道件650近端一侧设有轴向延伸的长孔，所述后释放旋盖170可以带动鞘芯固定钢套160在长孔的范围内沿轴向移动，从而控制支架800的后释放。在本实施例中，所述尾端滑道件650的近端与拉环固定件510的远端固定连接。在本实施例中，所述内鞘芯110的近端与鲁尔接头670固定连接。
一般说来，人体的动脉血管连通有很多分支血管，通过支架800对动脉血管进行修复时，有时需要同步对分支血管进行修复，此时分支支架需要通过支架800进入分支血管以对分支血管进行修复，为了简便的输送分支支架到分支血管中，在本实施例中，请参见图1、图2、图4，所述输送装置1000还包括预埋导丝710，所述预埋导丝710由输送间隙210的近端进入并延伸到输送间隙210的远端。所述预埋导丝710的远端用于从支架800的外侧经由支架800上的窗口811进入到支架800的内侧，所述预埋导丝710用于引导分支导丝经由支架800的内侧穿出支架800的窗口811，此时可以解除预埋导丝710与分支导丝之间的连接。其后，由于窗口811是对着分支血管，用户继续推分支导丝，分支导丝可以进入到分支血管中。其后，通过分支导丝可以引导分支支架到达分支血管中。另外，在本实施例中，所述预埋导丝的远端穿过所述推杆。
在本实施例中，请参见图1，所述输送装置1000近端设有第二锁定组件720，具体为所述第二锁定组件720设置在尾端滑道件650上，所述第二锁定组件720可用于锁止所述预埋导丝710的运动。
具体说来，请参见图7，所述尾端固定件640的内部沿轴向形成中空的尾部滑道651，所述尾部滑道651与所述输送间隙210连通，所述预埋导丝710进入尾部滑道651内。所述第二锁定组件720包括丝固定件721、固定在尾部滑道件650上的固定凸环722和固定在尾部滑道651中的挡片723。所述预埋导丝710从挡片723和丝固定件721之间的间隙进入尾部滑道651中。其中，丝固定件721和固定凸环722之间可通过螺纹活动连接。当丝固定件721将预埋导丝710压紧在挡片723上时，预埋导丝710的运动被锁止，从而防止因失误将预埋导丝710牵拉至不合适的位置。
本发明实施例还提供一种控制支架分步释放的输送系统，请参见图1-图4、图9-图11，所述控制支架分步释放的输送系统2000包括支架800和输送装置1000，所述支架800包括管状覆膜810和环形支撑架820，所述输送装置包括鞘芯组件100、外鞘管200和支架束缚组件400，所述外鞘管200中空并套接在鞘芯组件100外侧，所述外鞘管200与鞘芯组件100之间存在输送间隙210，所述输送间隙210的远端容纳收缩后的所述支架800；当所述支架 800呈部分释放状态时支架束缚组件400使释放部分的支架800未完全展开以缩小外径，当支架800呈完全释放状态时使支架800完全展开。
在本实施例中，所述管状覆膜810上由近端向远端轴向设置有连接件830，所述连接件830周向间隔设置至少两列，所述连接件830为柔性连接环，一列可设置1-6个连接件，优选3-5个，轴向成列的多个连接件可以防止支架在使用输送器束缚组件时发生短缩。当所述支架800呈部分释放状态时所述支架束缚组件400控制将至少两列所述连接件830束缚在一起以使支架800在周向上未完全展开，当支架800呈完全释放状态时支架束缚组件400解除对连接件830的束缚使支架800完全展开。
所述管状覆膜810上设有窗口811，当所述支架800呈部分释放状态时所述窗口811位于释放部分的管状覆膜上。本实施例支架800的具体结构在本申请人在先申请的CN201711483955.7中作了详细的描述，在此通过引用将该文献的公开信息纳入本申请中。
在本实施例中，所述支架束缚组件400包括至少一根控制丝410，所述控制丝410由输送间隙210的近端进入并延伸到输送间隙210的远端，所述控制丝410的远端在周向上束缚住释放部分的支架800，具体所述控制丝410将至少两列所述连接件830束缚在一起以使支架800在周向上未完全展开。
另外，所述输送装置还包括控制手柄300，所述控制手柄300与外鞘管200连接，所述控制手柄300控制所述外鞘管200相对鞘芯组件100作轴向运动以使收缩后的支架800呈部分释放状态或者完全释放状态。本实施例在前面已经对输送装置作了详细的描述，在此就不再赘述。
需要说明的是，本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。对于装置实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
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，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (19)

  1. 一种控制支架分步释放的输送装置，用于输送并分步释放支架，其特征在于，包括：
    鞘芯组件；
    外鞘管，其中空并套接在鞘芯组件外侧，所述外鞘管与鞘芯组件之间存在输送间隙，所述输送间隙的远端用于容纳收缩后的支架；以及
    支架束缚组件，其用于当支架呈部分释放状态时使释放部分的支架未完全展开以缩小外径，以及用于当支架呈完全释放状态时使支架完全展开。
  2. 如权利要求1所述的控制支架分步释放的输送装置，其特征在于，所述输送装置包括控制手柄，其与外鞘管连接，所述控制手柄控制所述外鞘管相对鞘芯组件作轴向运动，以使收缩后的支架呈部分释放状态或者完全释放状态。
  3. 如权利要求2所述的控制支架分步释放的输送装置，其特征在于，所述支架束缚组件包括至少一根控制丝，所述控制丝由输送间隙的近端进入并延伸到输送间隙的远端，所述控制丝的远端用于在周向上束缚住释放部分的支架。
  4. 如权利要求3所述的控制支架分步释放的输送装置，其特征在于，所述支架束缚组件还包括拉环，所述拉环与所述控制丝的近端固定连接，通过拉环向输送装置的近端施力以解除控制丝对支架的束缚。
  5. 如权利要求3所述的控制支架分步释放的输送装置，其特征在于，所述输送装置还包括第一锁定组件，所述第一锁定组件用于锁定支架束缚组件的运动以防止误解除控制丝对支架的束缚。
  6. 如权利要求2-5任意一项所述的控制支架分步释放的输送装置，其特征在于，所述外鞘管外侧固定连接鞘管接头；所述控制手柄包括：
    支撑主体，其内部设有所述鞘管接头，当对鞘管接头施加轴向作用力时其在支撑主体内沿轴向运动以带动外鞘管作轴向运动；
    固定手柄，其安装在支撑主体远端的外侧并且两者固定连接；
    滑动手柄，其安装在支撑主体外侧，所述滑动手柄邻近固定手柄的近端设置，所述滑动手柄在支撑主体外侧可转动并带动所述鞘管接头沿轴向运动。
  7. 如权利要求6所述的控制支架分步释放的输送装置，其特征在于，所述支撑主体上设有沿轴向延伸的长条孔，所述支撑主体的外侧在对应所述长条孔处套设有主体牙块，所述鞘管接头包括接头主体，和设于所述接头主体上的抵接块及远端凸块，所述抵接块和所述远端凸块分别从所述长条孔中伸出并抵住主体牙块的近端和远端以用于限制主体牙块相对鞘管接头作轴向移动，所述滑动手柄的内侧设有内螺纹，所述主体牙块的外侧设有外螺纹，内螺纹与外螺纹啮合，当滑动手柄转动时经由主体牙块、抵接块和远端凸块带动鞘管接头沿轴向运动，进而带动外鞘管作轴向运动。
  8. 如权利要求6所述的控制支架分步释放的输送装置，其特征在于，所述滑动手柄可在支撑主体上沿轴向滑动，所述固定手柄上嵌装有释锁按钮，释锁按钮向滑动手柄一侧延伸出卡勾，所述卡勾勾住滑动手柄以使滑动手柄紧邻固定手柄设置且阻止滑动手柄在轴向上滑动。
  9. 如权利要求3所述的控制支架分步释放的输送装置，其特征在于，所述输送装置还包括推杆，所述推杆的远端位于输送间隙中，当控制手柄控制外鞘管相对鞘芯组件沿轴向向近端运动时，所述推杆用于抵住支架以防止支架向输送间隙的近端移动。
  10. 如权利要求9所述的控制支架分步释放的输送装置，其特征在于，所述输送装置还包括支撑管，所述支撑管的远端位于所述输送间隙中，所述推杆位于支撑管内。
  11. 如权利要求9所述的控制支架分步释放的输送装置，其特征在于，所述推杆的内部沿轴向形成贯通孔，所述控制丝从贯通孔的近端进入，并从贯通孔的远端穿出。
  12. 如权利要求2-5任意一项所述的控制支架分步释放的输送装置，其特征在于，所述输送装置还包括预埋导丝，所述预埋导丝由输送间隙的近端进入并延伸到输送间隙的远端，所述预埋导丝的远端用于从支架的外侧经由支架上的窗口进入到支架的内侧，所述预埋导丝用于引导分支导丝从支架的内侧经由支架的窗口穿出。
  13. 如权利要求12所述的控制支架分步释放的输送装置，其特征在于，所述输送装置的近侧设有第二锁定组件，所述第二锁定组件可用于锁止所述预埋导丝的运动。
  14. 一种控制支架分步释放的输送系统，其特征在于，包括支架和输送装置，其中，所述支架包括管状覆膜和环形支撑架；所述输送装置包括：
    鞘芯组件；
    外鞘管，其中空并套接在鞘芯组件外侧，所述外鞘管与鞘芯组件之间存在输送间隙，所述输送间隙的远端容纳收缩后的所述支架；
    支架束缚组件，其用于当所述支架呈部分释放状态时支架束缚组件使释放部分的支架未完全展开以缩小外径，以及用于当支架呈完全释放状态时使支架完全展开。
  15. 如权利要求14所述的输送系统，其特征在于，所述管状覆膜上由近端向远端轴向设置有连接件，所述连接件周向间隔设置至少两列。
  16. 如权利要求15所述的输送系统，其特征在于，当所述支架呈部分释放状态时所述支架束缚组件控制将至少两列所述连接件束缚在一起以使支架在周向上未完全展开，当支架呈完全释放状态时支架束缚组件解除对连接件的束缚使支架完全展开。
  17. 如权利要求14-16任意一项所述的输送系统，其特征在于，所述管状覆膜上设有窗口，当所述支架呈部分释放状态时所述窗口位于释放部分的管状覆膜上。
  18. 如权利要求14-16任意一项所述的输送系统，其特征在于，所述支架束缚组件包括至少一根控制丝，所述控制丝由输送间隙的近端进入并延伸到输送间隙的远端，所述控制丝的远端在周向上束缚住释放部分的支架。
  19. 如权利要求14-16任意一项所述的输送系统，其特征在于，所述输送装置包括控制手柄，其与外鞘管连接，所述控制手柄控制所述外鞘管相对鞘芯组件作轴向运动以使收缩后的支架呈部分释放状态或者完全释放状态。
PCT/CN2019/099897 2018-08-09 2019-08-09 控制支架分步释放的输送装置及输送系统 WO2020030073A1 (zh)

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CN201821276778.5U CN209236481U (zh) 2018-08-09 2018-08-09 一种输送装置
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