WO2020207485A1 - 封堵器及封堵器紧锁系统 - Google Patents

封堵器及封堵器紧锁系统 Download PDF

Info

Publication number
WO2020207485A1
WO2020207485A1 PCT/CN2020/084304 CN2020084304W WO2020207485A1 WO 2020207485 A1 WO2020207485 A1 WO 2020207485A1 CN 2020084304 W CN2020084304 W CN 2020084304W WO 2020207485 A1 WO2020207485 A1 WO 2020207485A1
Authority
WO
WIPO (PCT)
Prior art keywords
distal end
pushing
occluder
proximal
tube
Prior art date
Application number
PCT/CN2020/084304
Other languages
English (en)
French (fr)
Inventor
王永胜
刘兴治
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 CN201920489828.6U external-priority patent/CN210408509U/zh
Priority claimed from CN201910291642.4A external-priority patent/CN111803166A/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 WO2020207485A1 publication Critical patent/WO2020207485A1/zh
Priority to US17/496,046 priority Critical patent/US20220022856A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00243—Type of minimally invasive operation cardiac
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A61B2017/00592—Elastic or resilient implements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A61B2017/00597—Implements comprising a membrane
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A61B2017/00606—Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A61B2017/00623—Introducing or retrieving devices therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A61B2017/00632—Occluding a cavity, i.e. closing a blind opening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B2017/1205—Introduction devices

Definitions

  • This application relates to the technical field of medical devices, and in particular to an occluder and an occluder locking system.
  • occluder is used to treat atrial septal defect, ventricular septal defect and patent ductus arteriosus.
  • the existing occluders are divided into patent ductus arteriosus occluder and atrial septal defect occluder And ventricular septal defect occluder, etc.
  • the basic structure of the patent ductus arteriosus occluder is a mushroom-shaped device made of super-elastic nickel-titanium alloy with a polymer biofilm inside, and the mesh structure is filled with polyester or polytetrafluoroethylene; the interatrial septum
  • the defect occluder and the ventricular septal defect occluder are self-expandable double-disc structures densely woven with nickel-titanium alloy wires.
  • the internal space of each disc structure is equipped with a polymer flow blocking membrane.
  • the proximal end of the occluder is roughly flat and the alloy wires are converged on both ends to seal the occluder.
  • the two ends of the occluder are easy to swell after being stretched. It is inconvenient to put the stretched occluder into the sheath and push it in the sheath. More importantly, when the occluder is not successfully locked, the seal needs to be recovered. The occluder, therefore, the occluder is located at the lesion of the lesion and the inner steel cable connected to the occluder will also be bent.
  • the occluded part of the occluder is often on the side of the distal port of the sheath during recovery.
  • the walls are offset, causing problems in the recovery of the occluder, thereby reducing the efficiency of the operation and affecting the success rate of the operation.
  • the technical problem to be solved by this application is to provide a convenient occluder and an occluder locking device with the occluder in view of the defects of the prior art.
  • an occlusion device including a proximal occlusion part, a first tightening member is arranged at the proximal end of the proximal occlusion part, and the proximal occlusion part is located on the first tightening member.
  • a tapered sliding guide structure is arranged on the outer periphery of a tightening member, and the inner diameter of the sliding guide structure gradually decreases from the distal end to the proximal end.
  • the present application also provides an occluder locking system, including a sheath tube adjustable bending device, a loader, a pushing device, and an occluder.
  • the sheath tube adjustable bending device includes a sheath tube
  • the loader includes a loading tube
  • the loading tube The distal end is inserted into the sheath
  • the pushing device includes a pushing combination
  • the occluder includes a proximal blocking part
  • the proximal end of the proximal blocking part is provided with a first tightening part
  • the proximal blocking part is at the first tightening part
  • a conical sliding guide structure is arranged on the outer periphery of the spool.
  • the inner diameter of the sliding guide structure gradually decreases from the distal end to the proximal end.
  • the sliding guide structure has a guiding effect, which is convenient for the push combination to recover the occluder into the sheath.
  • the proximal end of the proximal blocking portion of the occluder provided by the present application is provided with a tapered sliding guide structure on the outer periphery of the first tightening member.
  • the sliding guide structure has a guiding Therefore, the occluder can easily enter the sheath along the guiding structure, which is convenient to use.
  • Fig. 1 is a schematic structural diagram of an occlusion device provided by one of the embodiments of the present application.
  • Fig. 2 is a schematic cross-sectional view taken along line II-II in Fig. 1.
  • Fig. 3 is an enlarged view of the connecting bolt in Fig. 2.
  • Fig. 4 is a top view of the connecting bolt in Fig. 2.
  • Fig. 5 is a schematic structural diagram of an occluder locking system provided with the occluder in Fig. 1.
  • Figure 6 is an exploded schematic diagram of the occluder and pusher combination in Figure 5.
  • FIG. 7 is a schematic diagram of the distal end surface structure of the push tube in the push combination in FIG. 6.
  • Fig. 8 is a schematic cross-sectional view taken along line VIII-VIII in Fig. 6.
  • Figure 9 is a schematic cross-sectional view of the pushing member in Figure 6 after being inserted into the pushing tube.
  • Fig. 10 is a schematic structural diagram of the pushing device in Fig. 5.
  • Fig. 11 is an exploded schematic diagram of the pushing device in Fig. 10.
  • Fig. 12 is a schematic cross-sectional view taken along line XII-XII in Fig. 10.
  • Fig. 13 is a three-dimensional exploded structural diagram of the first housing and the second housing in Fig. 11.
  • Fig. 14 is a schematic plan view of the inner side of the first housing in Fig. 13.
  • FIG. 15 is a schematic plan view of the inner side of the second housing in FIG. 13.
  • Fig. 16 is a schematic plan view of the outer side of the second housing in Fig. 15.
  • FIG. 17 is a schematic diagram of the three-dimensional structure of the outer gusset plate in FIG. 11.
  • Fig. 18 is a perspective exploded schematic view of the end cap in Fig. 11.
  • Fig. 19 is a cross-sectional view taken along line XIX-XIX in Fig. 18.
  • FIG. 20 is a three-dimensional exploded structure diagram of the first clamping block, the movable block and the second clamping block in FIG. 11.
  • FIG. 21 is a schematic structural diagram of one side of the first clamping block in FIG. 20.
  • FIG. 22 is a schematic structural view of another side surface of the first clamping block in FIG. 20.
  • FIG. 23 is a schematic side view of the second clamping block in FIG. 20.
  • Fig. 24 is an enlarged view of the movable block in Fig. 20.
  • Fig. 25 is an enlarged view of the button in Fig. 11.
  • FIG. 26 is a schematic diagram of the structure of the first rotating mechanism in FIG. 11.
  • Fig. 27 is a cross-sectional view taken along the line XXVII-XXVII in Fig. 26.
  • FIG. 28 is a schematic diagram of the three-dimensional structure of the rotating column in FIG. 26.
  • FIG. 29 is a schematic diagram of the three-dimensional structure of the second rotating member in FIG. 11.
  • Fig. 30 is a schematic side view of the second rotating member in Fig. 29.
  • Fig. 31 is a cross-sectional view taken along line XXXI-XXXI in Fig. 30;
  • Fig. 32 is a combined diagram of the pushing device in Fig. 11.
  • Fig. 33 is a cross-sectional view taken along the line XXXIII-XXXIII in Fig. 32;
  • proximal end the end close to the operator during the operation
  • distal the end far away from the operator
  • axial direction refers to the center and proximal
  • the present application provides an occlusion device 10, including a proximal occlusion portion 11, a distal occlusion portion 15 and placed between the proximal occlusion portion 11 and the distal occlusion portion 15
  • the waist 18 The proximal end blocking portion 11 is provided with a first tightening member 110 at the proximal end, and the proximal blocking portion 11 is provided with a conical sliding guide structure 111 on the outer periphery of the first tightening member 110.
  • the inner diameter of the guide sliding structure 111 is from far away It gradually decreases from end to proximal end.
  • the sliding guide structure 111 is an inverted conical surface structure.
  • the proximal end of the proximal blocking portion 11 of the occluder 10 of the present application is provided with a tapered sliding guide structure 111 on the outer periphery of the first tightening member 110.
  • a tapered sliding guide structure 111 on the outer periphery of the first tightening member 110.
  • the guide slide structure 111 has a guiding effect, the occluder 10 can easily enter the sheath, which is convenient to use.
  • the outer diameter of the proximal end of the sliding guide structure 111 is slightly smaller than the inner diameter of the distal end of the sheath, which can facilitate the insertion of the proximal end of the sliding guide structure 111 into the sheath when the occluder 10 is recovered.
  • the first sealing member 11, the second sealing member 15 and the waist 18 are all woven with metal wires to form a double-layer disc structure with an internal space, and the middle of the metal wires is bent to form the waist 18.
  • the metal wire can be, but is not limited to, nickel-titanium alloy, cobalt-chromium alloy, stainless steel or other metal materials with good biocompatibility, preferably superelastic shape memory alloy nickel-titanium wire.
  • At least one baffle film is arranged inside the proximal blocking part 11 and/or the distal blocking part 15, and the baffle film can be fixed to the proximal blocking part 11 and the distal blocking part 15 by suture or bonding.
  • the flow blocking film can be, but not limited to, polytetrafluoroethylene film, polyurethane film, or polyimide film.
  • first blocking member 11, the second blocking member 15 and the waist 18 may be cut by metal tubes to form a grid or frame structure.
  • the proximal blocking portion 11 includes a first annular groove 112 connected to the waist 18 and recessed toward the proximal end, and a first side wall 113 connected to the outer edge of the first annular groove 112.
  • the cross section of the first side wall 113 is generally V-shaped.
  • the first side wall 113 is inclined to extend from the outer edge of the first annular groove 112 to the proximal end for a certain length, then bends and extends to the distal end and is connected to the sliding guide structure 111.
  • the first side wall 113 and the sliding guide structure 111 enclose an annular valley 115 recessed toward the distal end.
  • the first side wall 113 and the first annular groove 112 enclose an annular first clamping shoulder 116, and the cross section of the first clamping shoulder 116 is generally V-shaped.
  • the wire braided by the first annular groove 112 first extends in the proximal direction at an angle of 30°-45° with the axial direction to form the first side wall 113, and then folds back to the distal end to form the annular valley 115.
  • the waist 18 is formed at the connection between the annular valley 115 and the first tightening member 110.
  • the first tightening member 110 includes an inner sleeve 117 arranged at the proximal end of the proximal blocking portion 11 and a protruding portion 118 fixed to the inner sleeve 117.
  • the proximal end of the metal wire is converged and positioned on the inner sleeve 117 and the protruding ⁇ 118 Between.
  • the metal wire between the inner sleeve 117 and the protruding portion 118 can be fixed by welding, clamping or the like.
  • the inner sleeve 117 is a steel sleeve with open ends, and the protruding part 118 is also a cylinder with both ends open.
  • the inner diameter of the inner sleeve 117 is larger than the outer diameter of the protruding part 118, and the inner sleeve 117 can be
  • the inner sleeve 117 is sleeved on the protruding portion 118, and the proximal end of the metal wire is located between the inner wall of the inner sleeve 117 and the outer wall of the protruding portion 118.
  • the inner sleeve 117 is located inside the proximal blocking part 11, the distal end of the protruding part 118 extends to the inside of the proximal blocking part 11, and the inner sleeve 117 is sleeved on the distal end of the protruding part 118, The proximal end of the metal wire is folded inward and positioned between the inner wall of the inner sleeve 117 and the outer wall of the distal end of the protrusion 118.
  • the inner sleeve 117 is arranged inside the proximal occluding portion 11.
  • the protruding portion 118 axially defines a through hole 1182, and the outer wall of the protruding portion 118 is provided with an external thread 1184.
  • the distal end blocking portion 15 includes a second annular groove 152 connected to the waist 18 and recessed toward the distal end, and a second side wall 153 connected to the outer edge of the second annular groove 152.
  • the annular groove 152 extends obliquely to the distal end and converges at the distal end of the distal end blocking portion 15.
  • the second side wall 153 and the second annular groove 152 enclose a second clamping shoulder 156, and the outer edge of the second clamping shoulder 156 corresponds to the outer edge of the first clamping shoulder 116.
  • the distal end blocking portion 15 also includes a second tightening member 150 placed at the distal end.
  • the wire braided by the second annular groove 152 first approaches the distal end toward the distal end at an angle of 30 to 45 degrees with respect to the axial direction.
  • the two tightening members 150 extend in the direction to form a second side wall 153, and the metal wire is close to the second tightening member 150 and fixed to the second tightening member 150.
  • the second annular groove 152, the second side wall 153 and the second clamping shoulder 156 of the distal blocking part 15 and the first annular groove of the proximal blocking part 11 The specific structures of the groove 112, the first side wall 113, and the first clamping shoulder 116 can provide the greatest clamping force and facilitate the endothelialization of the occluder 10.
  • the second tightening member 150 includes an outer sleeve 157 and a connecting bolt 158 connected to the proximal end of the outer sleeve 157, and the distal end of the metal wire is converged and positioned between the outer sleeve 157 and the distal end of the connecting bolt 158 ,
  • the connecting bolt 158 extends proximally, the outer wall of the proximal end of the connecting bolt 158 is provided with an external thread 1582, the outer diameter of the proximal end of the connecting bolt 158 is slightly smaller than the inner diameter of the through hole 1182 of the protruding part 118, and the connecting bolt 158 can be moved proximally.
  • the proximal end of the connecting bolt 158 passes through the through hole 1182 to be screwed to the nut.
  • the metal wire between the external sleeve 157 and the connecting bolt 158 can be fixed by welding, clamping, or the like.
  • An end of the connecting bolt 158 close to the outer sleeve 157 is provided with a convex disk 1585 in the radial direction, and the outer diameter of the convex disk 1585 is larger than the inner diameter of the through hole 1182 of the protruding portion 118.
  • the convex plate 1585 can be circular, square or other shapes, as long as the convex plate 1585 can be stopped at the periphery of the through hole 1182 at the distal end of the convex portion 118.
  • the metal wire between the external sleeve 157 and the connecting bolt 158 can be fixed by welding, clamping, etc.
  • the external sleeve 157 can be a cylinder with open ends, and the distal end of the metal wire is welded to the inside of the cylinder to connect
  • the distal end of the bolt 158 is provided with a convex surface in the radial direction.
  • the diameter of the convex surface is larger than the diameter of the cylinder.
  • the proximal end of the connecting bolt 158 passes through the cylinder and the convex surface is clamped to the distal end surface of the cylinder.
  • the outer sleeve 157 can also be The inner cavity is arranged from the proximal end to the distal direction.
  • the distal end of the connecting bolt 158 is fixed in the inner cavity, and the metal wire is welded between the external sleeve 157 and the connecting bolt 158.
  • the latter structure is adopted in this embodiment.
  • connecting bolt 158 is not provided with a convex plate 1585, during the locking process of the occluder 10, the connecting bolt 158 is stretched in the proximal direction. When the force used for the connecting bolt 158 is large, it may interact with the connecting bolt.
  • the second plugging member 15 made of metal wire weaved by 158 passes through the through hole 1182 of the protruding part 118 and is pulled into the breach, so that the edge of the second plugger 15 is tilted to form a horn-like structure After the second occluder 15 is tilted, it cannot form a clamping force on the tissue around the breach, which affects the blocking effect of the breach; and the convex plate 1585 of the connecting bolt 158 of the occluder 10 of the present application is in the connecting bolt
  • the convex disc 1585 can stop at the distal end of the protruding part 118 to play a blocking role and ensure that the distal blocking part 15 is located in the cavity of the occluder 10 It will not be pulled into the breach by the connecting bolt 158, to prevent the edge of the second occluder 15 from lifting, and to ensure that the first clamping shoulder 116 and the second clamping shoulder 156 are set on the breach and at the
  • the connecting bolt 158 Before the connecting bolt 158 is locked with the nut, the connecting bolt 158 is located inside the occluder 10, and the proximal end of the connecting bolt 158 passes through the waist 18 of the occluder 10.
  • a screw hole 1583 is axially opened in the middle of the proximal surface of the connecting bolt 158.
  • the first annular groove 112 and the second annular groove 152 are oppositely arranged at the proximal and distal ends of the waist 18, and the first annular groove 112 and the second annular groove 152 enclose an annular space.
  • the screwing direction of the external thread 1582 of the connecting bolt 158 is opposite to the screwing direction of the external thread 1184 of the protrusion 118.
  • the external thread 1582 of the connecting bolt 158 is a left-hand thread
  • the external thread 1184 of the protrusion 118 is a right-hand thread
  • the external thread of the protrusion 118 is 1184 is a left-hand thread.
  • the occluder 10 can omit the inner sleeve 117 and the outer sleeve 157, the distal end of the metal wire is converged and positioned at the distal end of the connecting bolt 158 and positioned by welding, and the proximal end of the metal wire is converged and positioned on the protrusion The distal end of 118 is positioned by welding.
  • the present application also provides an occluder locking system, which includes an occluder 10, a sheath adjustable bending device 20, a dilator 30, and a loader disposed at the proximal end of the sheath adjustable bending device 20 40. And a pushing device 60 provided at the proximal end of the loader 40.
  • the sheath tube adjustable bending device 20 includes a housing 21, a sheath tube 23 whose proximal end is placed in the housing 21, and an adjustment mechanism 25 for adjusting the bendable distal end of the sheath tube 23.
  • the loading device 40 includes a loading tube 42 and a sealing seat 44 provided at the proximal end of the loading tube 42.
  • the distal end of the loading tube 42 can be inserted into the sheath 23.
  • the pushing device 60 can push the occluder 10, and the pushing device 60 includes a housing 61 with an accommodating space, a first pushing component 64 partially placed in the housing 61, and a second pushing component 67 partially sleeved on the housing 61 , And a push combination 68, the proximal end of the push combination 68 is placed in the housing 61.
  • the dilator 30 has an elongated cylindrical structure, and the diameter of the distal end of the dilator 30 is gradually reduced to form a conical structure.
  • the dilator 30 includes an expansion rod 32 and a connecting portion 35 provided at the proximal end of the expansion rod 32.
  • the distal end of the expansion rod 32 gradually decreases in diameter to form a conical structure.
  • the conical structure facilitates the insertion of the expansion rod 32 into the sheath. Tube 23.
  • the dilator 30 needs to be assembled into the sheath adjustable bending device 20 to form the expansion assembly.
  • the pushing assembly 68 includes a pushing member 682, a pushing tube 684 movably sleeved around the pushing member 682, and a nut 689 positioned in the distal end of the pushing tube 684.
  • the distal end of the pushing member 682 is detachably connected to the connecting bolt 158 of the occluder 10, and the inner wall of the distal end of the pushing tube 684 is provided with an internal thread 6842 corresponding to the external thread 1184 of the protrusion 118.
  • the first pushing assembly 64 includes a sliding mechanism 65, which can drive the pushing member 682 to slide reciprocally in the axial direction in the pushing tube 684 to drive the connecting bolt 158 to abut against or away from the screw hole of the nut 689;
  • the second pushing assembly 67 includes The rotating mechanism can drive the push tube 684 to rotate and drive the nut 689 to rotate so that the connecting bolt 158 is screwed to the nut 689.
  • the threading direction of the external thread 1582 of the connecting bolt 158 is opposite to the threading direction of the external thread 1184 of the protrusion 118, that is, the connecting bolt 158 and the nut 689
  • the tightening direction is opposite to the tightening direction of the external thread 1184 of the protrusion 118 and the internal thread 6842 of the push tube 684, and the external thread 1184 of the protrusion 118 can be separated from the internal thread 6842 of the push tube 684.
  • the occluder 10 not only has high reliability of locking, but also has a good blocking effect, and is convenient to use and simple to operate.
  • the pushing assembly 68 is a steel cable assembly
  • the pushing member 682 is a steel cable with good elasticity
  • the pushing tube 684 is a steel cable tube with good elasticity
  • the steel cable can be movably inserted into the steel cable tube.
  • the push tube 684 includes a main body section 6841 and an extension section 6842 provided at the distal end of the main section 6841.
  • the nut 689 can be positioned inside the extension section 6842.
  • the internal thread 6842 is located on the inner wall of the distal end of the extension section 6842.
  • the external thread 1184 of the output portion 118 matches.
  • the threaded fastening direction of the extension 6443 and the protrusion 154 is opposite to the fastening direction of the connecting bolt 158 and the nut 689, and the threads of the extension 6743 and the protrusion 154
  • the sum pitch is equal to or greater than the thread and pitch of the nut 689, so that the proximal end of the connecting bolt 158 extends beyond the proximal surface of the nut 689.
  • the outer wall of the distal end of the pushing member 682 is provided with an external thread 6822 that matches the screw hole 1583 of the connecting bolt 158, and the distal end of the pushing member 682 can movably pass through the nut 689 and the extension 6743.
  • a cylindrical connecting rod 6821 protrudes axially in the middle of the distal surface of the pusher 682.
  • the outer diameter of the connecting rod 6821 is smaller than the outer diameter of the proximal part of the pusher 682.
  • the external thread 6822 is located on the outer wall of the distal end of the connecting rod 6821.
  • the outer diameter of the main body section 6841 is smaller than the outer diameter of the extension section 6841
  • the inner diameter of the main section 6841 is smaller than the inner diameter of the extension section 6743
  • the inside of the push tube 684 forms a stepped surface between the proximal end of the extension section 6842 and the distal end surface of the main section 6841 6845, the nut 689 can abut the step surface 6845.
  • the inner wall of the proximal end of the extension 6743 is provided with a locking groove 6846. The nut 689 can be locked in the locking groove 6846. The locking groove 6846 can prevent the nut 689 from rotating in the push tube 684.
  • the nut 689 can be along the axis in the extension 6743. Slide to. Specifically, the engaging groove 6846 is formed in a radially regular inner concave on the inner wall of the proximal end of the extension section 6842. The engaging groove 6846 can be engaged with the nut 689.
  • the nut 689 may be, for example, a hexagonal nut.
  • the engaging groove 6846 is corresponding to the hexagonal nut.
  • the hexagonal groove, that is, the radial cross section of the engaging groove 6846 is hexagonal.
  • the first pushing assembly 64 includes a sliding mechanism 65 and a first rotating mechanism 66.
  • the sliding mechanism 65 can drive the pushing member 682 to slide and position in the axial direction in the pushing tube 684.
  • the first rotating mechanism 66 can drive the pushing member 682 to rotate inside the pushing tube 684;
  • the second pushing assembly 67 includes a second rotating mechanism 670, and the second rotating mechanism 670 can drive the pushing tube 684 to rotate outside the pushing member 682.
  • the sliding mechanism 65 of the pushing device 60 can drive the pushing member 682 to slide axially in the pushing tube 684, and can drive the proximal end of the connecting bolt 158 to pass through the through hole 153 of the protruding portion 118 to abut against or move away from the one positioned in the pushing tube 684.
  • the first rotating mechanism 66 can drive the pushing member 682 to rotate in the pushing tube 684, which can realize the screw connection or separation of the external thread 6822 of the pushing member 682 and the screw hole 1583 of the connecting bolt 158;
  • the second rotating mechanism 670 can drive The push tube 684 rotates outside the push piece 682, driving the nut 689 to rotate, so that the nut 689 is screwed to the connecting bolt 158 and the external thread 1184 of the protruding portion 118 is separated from the internal thread 6842 of the push tube 684, or the nut 689 and the connecting bolt 158
  • the external thread 1184 of the separated and protruding portion 118 is screwed to the internal thread 6842 of the push tube 684.
  • the operation of the pushing device 60 is simple and convenient to use, which improves the reliability and efficiency of the pushing device 60, thereby reducing the operation time.
  • the housing 61 includes a first housing 611, a second housing 613, an outer buckle 615, and an end cover 616.
  • the first housing 611 is connected to the second housing 613 to form a tubular structure with open ends.
  • the sliding mechanism 65 is axially arranged In the tube-like structure, the first rotating mechanism 66 is arranged at the proximal end of the tube-like structure, the second rotating mechanism 670 is arranged at the distal end of the tube-like structure, and the end cap 616 is arranged at the distal end of the second rotating mechanism 670.
  • the distal end of the inner wall of the first housing 611 is provided with at least one first support piece 6112 and at least one second support piece 6113 along the axial direction, and at least one The third support piece 6115.
  • the first supporting piece 6112, the second supporting piece 6113, and the third supporting piece 6115 are all semicircular ring-shaped pieces, and the first supporting piece 6112 and the second supporting piece 6113 are spaced apart.
  • the axis lines of the first supporting piece 6112, the second supporting piece 6113, and the third supporting piece 6115 all extend along the axial direction, and the axis lines of the first supporting piece 6112, the second supporting piece 6113 and the third supporting piece 6115 coincide .
  • the number of the first supporting piece 6112 is two, and the two first supporting pieces 6112 are spaced and parallel axially; the number of the second supporting piece 6113 is one piece; the number of the third supporting piece 6115 is two, two The three third supporting pieces 6115 are axially spaced and parallel.
  • the number of the first supporting piece 6112, the second supporting piece 6113, and the third supporting piece 6115 may be other values.
  • the outer wall of the first housing 611 is provided with a rectangular plane 6110, and the length of the plane 6110 extends in the axial direction, that is, the plane 6110 extends from the distal end to the proximal end.
  • the plane 6110 defines a strip-shaped opening 6116 along the axial direction.
  • the strip-shaped opening 6116 is located between the second supporting sheet 6113 and the third supporting sheet 6115.
  • the strip-shaped opening 6116 extends from the distal end to the proximal end of the first housing 611.
  • the inner wall of the first housing 611 is provided with a rack 6117 on at least one side of the bar-shaped opening 6116, and the rack 6117 extends from the distal end to the proximal end of the bar-shaped opening 6116.
  • a plurality of clamping pieces 6118 are protruded from two opposite side walls of the first housing 611 respectively.
  • the inner wall of the first housing 611 is provided with strip grooves along the axial direction on opposite sides of the strip opening 6116, and a rack 6117 is provided in each strip groove.
  • the structure of the second housing 613 is similar to the structure of the first housing 611, and the distal end of the inner wall of the second housing 613 is provided with at least one fourth support piece 6132 and at least one At least one sixth supporting piece 6135 is provided at the proximal end of the inner wall of the second housing 613 and the fifth supporting piece 6133.
  • the fourth supporting piece 6132, the fifth supporting piece 6133, and the sixth supporting piece 6135 are all semicircular ring-shaped pieces, and the fourth supporting piece 6132 and the fifth supporting piece 6133 are spaced apart.
  • the axis lines of the fourth supporting piece 6132, the fifth supporting piece 6133, and the sixth supporting piece 6135 all extend in the axial direction, and the axis lines of the fourth supporting piece 6132, the fifth supporting piece 6133, and the sixth supporting piece 6135 coincide .
  • the first supporting piece 6112, the second supporting piece 6113, and the third supporting piece 6115 of the first housing 611 are respectively connected to the fourth supporting piece 6132 of the second housing 613
  • the five supporting pieces 6133 and the sixth supporting piece 6135 are in one-to-one correspondence; and the first supporting piece 6112 and the corresponding fourth supporting piece 6132 are enclosed by a circular supporting piece, and the second supporting piece 6113 and the fifth supporting piece 6133 are enclosed by The annular support piece, and the third support piece 6115 and the corresponding sixth support piece 6135 enclose a round support piece.
  • the number of the fourth support sheet 6132 is two, and the two fourth support sheets 6132 are spaced and parallel; the number of the fifth support sheet 6133 is one; the number of the sixth support sheet 6135 is two, and the number of the sixth support sheet 6135 is two.
  • the six supporting pieces 6135 are spaced and parallel.
  • the number of the fourth supporting piece 6132, the fifth supporting piece 6133, and the sixth supporting piece 6135 may be other values.
  • At least one guide rail 6136 is protruded from the inner wall of the second housing 613 along the axial direction.
  • the guide rail 6136 is located between the fifth support piece 6133 and the sixth support piece 6135, and the guide track 6136 extends from the distal end to the proximal end.
  • two guide rails 6136 are protruded in parallel in the middle of the inner wall of the second housing 613, and a plurality of positioning blocks 6137 are arranged axially spaced between the two guide rails 6136, and each positioning block 6137 defines a clamping hole.
  • a mounting opening 6138 is defined in the middle of the outer wall of the second housing 613, and a plurality of clamping holes 6139 are defined in the periphery of the mounting opening 6138 of the second housing 613.
  • the two opposite side walls of the second housing 613 are respectively protruded with a plurality of elastic hooks 6131, and these hooks 6131 correspond to the hooking pieces 6118 of the first housing 611 one by one.
  • the outer buckle plate 615 is a convex arc-shaped piece.
  • the outer buckle plate 615 corresponds to the installation opening 6138 of the second housing 613.
  • the outer buckle plate 615 faces the side of the installation opening 6138.
  • the positioning posts 6151 and a plurality of hooks 6153 are in one-to-one correspondence with the locking holes of the positioning block 6137 of the second housing 613, and the hooks 6153 are in one-to-one correspondence with the locking holes 6139 of the second housing 613.
  • the outer wall of the outer buckle plate 615 is provided with non-slip stripes or protrusions to increase friction, facilitate the fingers to grip the conveying device 60, and facilitate the operation of the conveying device 60.
  • the end cap 616 has a conical structure.
  • the end cap 616 includes a cap body 6160 and a sleeve 6165 connected to the distal end of the cap body 6160.
  • the end cap 616 axially defines a through hole 6161. 6161 penetrates through the middle of the cap body 6160 and the cap 6165.
  • a conical cavity is provided inside the cap body 6160, an annular groove 6162 is provided on the inner wall of the proximal end of the cap body 6160, and the axis of the annular groove 6162 coincides with the axis of the through hole 6161.
  • the rear end of the cap body 6160 is provided with two opposite clamping blocks 6164 in the conical cavity.
  • the sleeve 6165 is clamped to the distal end of the cap body 6160.
  • the distal end of the cap body 6160 is convexly provided with a clamping ring 6163 on the inner peripheral surface of the through hole 6161
  • the proximal surface of the sleeve 6165 is convexly provided around the through hole 6161 Extension post, the proximal end of the extension post is radially projected with a pair of lugs 6167.
  • the sleeve 6165 is made of soft materials such as rubber or silicone.
  • the proximal end of the pusher assembly 68 passes through the sleeve 6165 and the through hole 6161 of the cap body 6160 and then is connected to the housing 61. Since the sleeve 6165 is made of a soft material, the sleeve 6165 can reduce the shaking of the pushing assembly 68 and the friction and wear of the distal end port of the end cap 616.
  • the sliding mechanism 65 is slidably disposed on the housing 61 in the axial direction.
  • the sliding mechanism 65 includes at least one guide rail 651 extending in the axial direction and slidably passing through the housing 61.
  • the proximal end of the pushing member 682 is fixed to the movable block 653.
  • the sliding member 650 includes a first clamping block 654 and a second clamping block 655, and a button 656 partially exposed to the housing 61 and connected to the sliding member 650.
  • the first clamp The holding block 654 can be close to or away from the second holding block 655.
  • the movable block 653 is disposed between the first clamping block 654 and the second clamping block 655.
  • the first clamping block 654 and the second clamping block 655 are close to each other and can clamp the movable block 653 between the first clamping block 654 and the second clamping block 655.
  • the clamping of the movable block 653 can be released, and the movable block 653 can rotate.
  • two guide sliding rails 651 spaced in parallel are axially provided in the housing 61.
  • the first clamping block 654 generally has a semicircular tube structure.
  • a rectangular top surface 6541 is provided in the middle of the outer wall of the first clamping block 654.
  • the length direction of the top surface 6541 extends along the axial direction of the first clamping block 654.
  • Part of the structure of the first clamping block 654 can pass through the strip-shaped opening 6116 and can slide along the strip-shaped opening 6116.
  • a sliding strip 6542 is protruding from the middle of the top surface 6541, and the length of the sliding strip 6542 is along the length of the top surface 6541. Extending in the length direction, the sliding strip 6542 can be slidably inserted into the strip opening 6116 of the first housing 611.
  • the top surface 6541 is provided with a clamping tooth 6544 on at least one side of the sliding bar 6542, and the clamping tooth 6544 can be clamped to the corresponding rack 6117 of the first housing 611.
  • the top surface 6541 is provided with clamping teeth 6544 on opposite sides of the sliding bar 6542, and the two clamping teeth 6544 can be respectively clamped to the two racks 6117 of the first housing 611.
  • the top surface 6541 protrudes from the two opposite ends of the sliding bar 6542 with connecting posts 6545 respectively.
  • a first clamping groove 6548 is defined in the middle of the inner wall of the first clamping block 654, and the first clamping groove 6548 can receive the outer wall of the movable block 653.
  • the second clamping block 655 generally has a semicircular tube structure.
  • the middle of the outer wall of the second clamping block 655 is axially provided with two guide grooves 6552 spaced apart from each other.
  • the two guide grooves 6552 correspond to the guide rails 6136 of the second housing 613.
  • the two clamping blocks 655 can slide along the guide rail 6136.
  • the two opposite sides of the second clamping block 655 are respectively provided with two guide holes 6554 and an introduction hole 6556, and the introduction holes 6556 on each side are located between the two guide holes 6554 on the same side.
  • a second clamping groove 6558 is defined in the middle of the inner wall of the second clamping block 655, and the second clamping groove 6558 can receive the outer wall of the movable block 653.
  • the movable block 653 is a cylinder.
  • the proximal end of the pushing member 682 is fixed to the middle of the movable block 653.
  • the middle of the distal surface of the movable block 653 defines a fixing hole 6532 along its axial direction, and the proximal end of the pushing member 682 is fixed to Inside the fixing hole 6552.
  • the end surface of the movable block 653 is provided with two through holes 6534 on opposite sides of the fixed hole 6532.
  • Each through hole 6534 extends in the axial direction and penetrates the proximal and distal surfaces of the movable block 653.
  • Each through hole 6534 is used to pass through Set a guide rail 651.
  • the outer wall of the movable block 653 is provided with a plurality of welding holes 6535 communicating with the fixing holes 6532, and the pusher 682 is fixed to the movable block 653 by adding solder into the welding holes 6535.
  • An elastic member 658 is provided between the first clamping block 654 and the second clamping block 655, and the elastic member 658 can force the first clamping block 654 to be away from the second clamping block 655.
  • the elastic member 658 is a spring sleeved outside the guide sliding column 6546.
  • a depression 6561 is provided in the middle of the outer wall of the button 656, and a number of anti-skid strips 6563 are arranged on the surface of the depression 6561.
  • a finger can be inserted into the depression 6561 to facilitate the operation of the button 656.
  • the opposite ends of the button 656 facing away from the recess 6561 are respectively provided with connecting blocks 6564, and each connecting block 6564 faces away from the side surface of the recess 6561 with connecting holes 6566.
  • the two connecting holes 6566 correspond to the two connecting posts 6545 of the first clamping block 654.
  • the button 656 may be integrally formed with the first clamping block 654, that is, the first clamping block 654 is provided with a button passing through the strip-shaped opening 6116.
  • FIGS 26 to 28 show a schematic diagram of the structure of the first rotating mechanism 66.
  • the first rotating mechanism 66 includes a first rotating member 662 fixed to the guide rail 651 and rotatably disposed on the housing 61 along the axis of the pushing member 682 Inside the rotating column 664.
  • the first rotation mechanism 66 is fixedly connected to the proximal end of the guide rail 651
  • the rotation post 664 is fixedly connected to the distal end of the guide rail 651
  • the axis of the guide rail 651 is spaced from the axis of the pusher 682. parallel.
  • the first rotating member 662 is rotatably disposed at the proximal end of the housing 61 along the axis line of the pushing member 682.
  • the rotation of the first rotating member 662 can drive the movable block 653 and the rotating column 664 to rotate through the guide rail 651, thereby enabling the pushing Piece 682 rotates.
  • the first rotating member 662 includes a handle portion 6621 and a rotating rod 6623 protruding from the middle of the distal surface of the handle portion 6621.
  • the rotating rod 6623 is a cylinder.
  • the outer wall of the rotating rod 6623 defines two rings along its circumference.
  • the guide groove 6625, the two guide grooves 6625 correspond to the annular support piece enclosed by the third support piece 6115 of the first housing 611 and the sixth support piece 6135 of the second housing 613, the axis of the two guide grooves 6625 and the first
  • the axis of a rotating member 662 coincides, and the first rotating member 662 can rotate along the guide groove 6625.
  • the end surface of the rotating rod 6623 facing away from the handle portion 6621 is provided with two spaced fixing holes 6626.
  • the axis lines of the two fixing holes 6626 do not coincide with the axis lines of the rotating rod 6623, and the proximal ends of the two guide rails 651 are respectively fixed In the two fixing holes 6626.
  • a number of anti-slip grooves 6627 are provided on the outer wall of the handle portion 6621 to facilitate the rotation of the first rotating member 662.
  • the rotating column 664 is a cylinder, and the outer wall of the rotating column 664 is provided with a guide groove 6642 along its circumference.
  • the guide groove 6642 corresponds to the second supporting piece 6113 of the first housing 611 and the fifth supporting piece 6133 of the second housing 613.
  • the rotating column 664 can rotate along the guide groove 6642.
  • the middle part of the rotating column 664 axially defines a through hole 6643 passing through the proximal and distal surfaces thereof, and the pushing member 682 can movably pass through the through hole 6643.
  • the axis of the through hole 6643 coincides with the axis of the guide groove 6642.
  • Two fixing holes 6646 are defined on the proximal surface of the rotating column 664 on opposite sides of the through hole 6643, and the distal ends of the two sliding guide rails 651 are respectively fixed in the two fixing holes 6646.
  • FIGS 29 to 31 show the schematic structure of the second rotating member 670.
  • the second rotating member 670 is rotatably arranged at the distal end of the housing 61 along the axis of the pushing member 682.
  • the second rotating member 670 is a cylindrical body.
  • a through hole 6701 is axially opened in the middle of the two rotating parts 670, the proximal end of the push tube 684 is fixed in the through hole 6701, and the push part 682 movably passes through the through hole 6701.
  • the axis line of the through hole 6701 coincides with the axis line of the push tube 684, and the axis line of the second rotating member 670 coincides with the axis line of the through hole 6701.
  • the second rotating member 670 includes a cylindrical operating portion 6702, a rotating portion 6704 protruding from the middle of the proximal surface of the operating portion 6702, and an annular tab 6705 protruding from the distal surface of the operating portion 6702.
  • the outer wall of the operating portion 6702 is provided with anti-skid strips, and these anti-skid strips facilitate the rotation of the second rotating member 670 by fingers.
  • the rotating part 6704 is a cylinder.
  • the outer wall of the rotating part 6704 defines two annular guide grooves 6706 along its circumference.
  • the two guide grooves 6706 correspond to the first support piece 6112 of the first housing 611 and the fourth support of the second housing 613.
  • the axis lines of the two guide grooves 6706 coincide with the axis lines of the through hole 6701, and the second rotating member 670 can rotate along the guide groove 6706.
  • the axis line of the annular protrusion 6705 coincides with the axis of the through hole 6701.
  • the annular protrusion 6705 is radially provided with two opposite hooks 6707, two hooks 6707 and two blocks 6164 of the cap body 6160. correspond.
  • the inner wall of the proximal end of the through hole 6701 is provided with an internal thread 6708, and the outer wall of the proximal end of the push tube 684 is provided with an external thread corresponding to the internal thread 6708.
  • the proximal end of the pushing member 682 can be movably inserted through the through hole 6643 of the rotating column 664 and then fixed in the fixing hole 6532 of the movable block 653, and the two The guide rails 651 slidably pass through the two through holes 6534 of the movable block 653, and the distal ends of the two guide rails 651 are respectively fixed in the two fixing holes 6646 of the rotating column 664, and the two guide rails
  • the proximal ends of the 651 are respectively fixed in the two fixing holes 6626 of the first rotating member 662, and the movable block 653 slidably penetrates the guide rail 651 and is located between the first rotating member 662 and the rotating post 664;
  • the pieces 658 are respectively sleeved on the guide sliding posts 6546, the movable block 653 is placed between the first clamping block 654 and the second clamping block 655, and the first clamping block 654 is covered with
  • the movable part 653 is movably clamped in the receiving space enclosed by the first clamping groove 6548 of the first clamping block 654 and the second clamping groove 6558 of the second clamping block 655, and the guide sliding column 6546 is slidably Inserted into the corresponding sliding guide hole 6554, the elastic member 658 elastically abuts between the first clamping block 654 and the second clamping block 655, and the first clamping block 654 is close to the second clamping block 655 to extend the guiding slide 6547
  • the introductory hole 6556 is snap-connected and can drive the second clamping block 655 to slide; the outer wall of the guide slide 6547 abuts the inner peripheral surface of the guide hole 6556, and there is no gap between the guide slide 6547 and the guide hole 6556, which can prevent the first clamping
  • the holding block 655 is displaced relative to the second holding block 655 in the axial direction, so that the movable block 653 can be moved to a proper position and positioned more conveniently and accurately.
  • the second supporting piece 6113 is inserted into the guiding groove 6642 of the rotating column 664, and the two third supporting pieces 6115 are inserted into the two guiding grooves 6625 of the first rotating member 662 respectively.
  • the sliding bar 6542 and the connecting post 6545 are both inserted into the bar-shaped opening 6116, the sliding bar 6542 can slide axially along the bar-shaped opening 6116, and the two clamping teeth 6544 of the first clamping block 654 correspond to the two teeth respectively.
  • the two connecting blocks 6564 of the button 656 are sleeved on the two connecting posts 6545, the recess 6561 of the button 656 exposes the first housing 611, and the button 656 can slide along the strip-shaped opening 6116.
  • the sleeve 6165 is sleeved on the distal end of the cap body 6160, specifically, a pair of lugs 6167 of the sleeve 6165 are snapped to the snap ring 6163 of the cap body 6160; the end cap 616 is snapped to the second rotating member 670
  • the annular protrusion 6705 is inserted into the annular groove 6162 of the cap 6160, and the two hooks 6707 are respectively clamped to the two clamping blocks 6164, so that the end cover 616 is fixed to the second rotating member 670,
  • the axis of the through hole 6161 of the end cover 616 coincides with the axis of the through hole 6701 of the second rotating member 670.
  • the hook 6707 of the second rotating member 670 and the blocking block 6164 of the cap body 6160 can be omitted, and the annular protrusion 6705 of the second rotating element 670 is rotatably inserted into the annular groove of the cap body 6160
  • the end cap 616 is rotatably connected to the distal end of the second rotating member 670. Pass the proximal end of the push tube 684 through the through hole 6161 of the end cover 616 and fix it in the through hole 6701 of the second rotating member 670.
  • the external thread of the push tube 684 is screwed into the second rotating member 670 Thread 6708.
  • the proximal end of the push tube 684 may be fixed in the through hole 6161 by welding, gluing or snapping.
  • the two fourth supporting pieces 6132 of the second housing 613 are respectively inserted into the two guide grooves 6706 of the second rotating member 670, the fifth supporting piece 6133 is received in the guide grooves 6642 of the rotating column 664, and two The sixth supporting piece 6135 is respectively inserted into the two guide grooves 6625 of the first rotating member 662, and the two guide rails 6136 are respectively received in the two guide grooves 6552 of the second clamping block 655, and the elastic member 658 pushes against the The clamping teeth 6544 of a clamping block 654 are clamped to the rack 6117, and the operating portion 6702 of the second rotating member 670 is exposed outside the casing 61.
  • the outer buckle plate 615 is then clamped into the installation opening 6138 of the second housing 613. Specifically, the positioning post 6151 of the outer buckle plate 615 is clamped into the hole of the corresponding positioning block 6137, and the hook 6153 is clamped to the corresponding hole. Inside the card hole 6139, the installation is complete.
  • pressing the button 656 moves the first clamping block 654 toward the second clamping block 655, and the elastic member 658 is elastically deformed until the movable block 653 is clamped by the first clamping block 654 and the second clamping block 655 Tightly positioned, the teeth 6544 of the first clamping block 654 are separated from the rack 6117, and the button 656 is slid proximally or distally along the strip-shaped opening 6116 of the first housing 611, so that the movable block 653 follows the first clamping block 654 Sliding proximally or distally with the second clamping block 655 to drive the pushing member 682 to slide proximally or distally in the pushing tube 684 to realize the axial sliding of the pushing member 682; when the pushing member 682 slides to a suitable position
  • the elastic member 658 is elastically reset and pushes the first clamping block 654 away from the second clamping block 655.
  • the teeth 6544 of the first clamping block 654 are clamped to the rack 6117 and positioned
  • the sliding member 650 prevents the movable block 653 from sliding in the axial direction, thereby positioning the pushing member 682 in the axial direction.
  • the pushing member 682 needs to be rotated, the pressing of the button 656 is released, the first clamping block 654 is moved away from the second clamping member 655, and the first rotating member 662 is rotated to drive the guide rail 651, the movable block 653 and the rotating column 664 Rotation, that is, the movable member 653 can rotate along the axis of the pushing member 682 in the space enclosed by the first clamping groove 6548 of the first clamping block 654 and the second clamping groove 6558 of the second clamping block 655, Thus, the pushing member 682 is driven to rotate relative to the pushing tube 684.
  • the operating portion 6702 of the second rotating member 670 is rotated to make the second rotating member 670 rotate along the axis of the pushing member 682. Since the proximal end of the pushing tube 684 is fixed to the passage of the second rotating member 670 In the hole 6701, the pushing tube 684 rotates with the second rotating member 670.
  • the sliding mechanism 65 of the pushing device 60 can drive the pushing member 682 to slide in the axial direction, so as to facilitate changing the position of the occluder fixed with the distal end of the pushing member 682 in the blood vessel, and can control the release speed of the occluder.
  • the button 656 is released, and the first clamping block 654 moves toward the first housing 611 under the resetting force of the elastic member 658, so that the clamping teeth 6544 engage with the rack 6117.
  • the sliding mechanism 65 can easily and reliably move and position the occluder.
  • the occluder locking system first determines the puncture position and after the puncture is completed, the distal end of the expansion rod 32 of the dilator 30 is inserted into the sheath 23 from the proximal end of the sheath adjustable bending device 20 and Exposed at the distal end of the sheath tube 23, because the distal end of the dilator 30 is gradually reduced in diameter to form a conical-like structure, the operator can easily use the distal structure of the dilator 30 under the imaging instrument
  • the sheath tube is introduced near the lesion location, and after reaching the lesion location, the dilator 30 is withdrawn, leaving the sheath tube 23 in the body to establish a passage from the outside to the body; the distal end of the pushing assembly 68 of the pushing device 60 passes through the loading
  • the sealing seat 44 and the loading tube 42 of the device 40, and the distal end of the pushing member 682 and the distal end of the pushing tube 684 are detachably fixed to the occluder 10 at the

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Cardiology (AREA)
  • Reproductive Health (AREA)
  • Vascular Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

一种封堵器（10），包括近端封堵部（11），近端封堵部（11）的近端设置第一收紧件（110），近端封堵部（11）于第一收紧件（110）的外周设置锥面状的导滑结构（111），导滑结构（111）的内径自远端至近端逐渐减小。导滑结构（111）具有导向作用，方便封堵器（10）轻易地回收进入鞘管（23）内。封堵器紧锁系统与封堵器（10）配合使用。

Description

封堵器及封堵器紧锁系统 技术领域
本申请涉及医疗器械技术领域，尤其涉及一种封堵器及封堵器紧锁系统。
背景技术
封堵器作为介入治疗的植入物，用于治疗房间隔缺损、室间隔缺损和动脉导管未闭等，现有的封堵器分为动脉导管未闭封堵器、房间隔缺损封堵器和室间隔缺损封堵器等。动脉导管未闭封堵器的基本结构为超弹性的镍钛合金编制成的蘑菇状装置，内附高分子生物薄膜而成，网状结构内部填充有聚酯涤纶或聚四氟乙烯；房间隔缺损封堵器和室间隔缺损封堵器由镍钛合金丝密集编织而成的自膨性双盘结构，每一盘结构内部空间设置内附高分子阻流膜。然而，现有的封堵器在介入手术使用过程中，在拉伸封堵器使之缩入鞘管时，因封堵器近端端面是大致平面且合金丝汇聚于两端端面而使封堵器经拉伸后两端易膨起，不方便将拉伸后的封堵器进入鞘管以及在鞘管内的推送，更重要的是，当封堵器紧锁不成功时，需要回收封堵器，因此时的封堵器位于病变的破口处以及与封堵器相连的内钢缆也会发生些弯折，回收时封堵器的封堵部常与鞘管远端端口的侧壁相抵，使封堵器的回收出现问题，从而降低手术效率，影响手术成功率。
申请内容
本申请要解决的技术问题在于，针对现有技术的缺陷，提供一种方便使用的封堵器，以及具有封堵器的封堵器紧锁装置。
为解决上述技术问题，本申请提供一种封堵器，包括近端封堵部，所述近端封堵部的近端设置第一收紧件，所述近端封堵部于所述第一收紧件的外周设置锥面状的导滑结构，所述导滑结构的内径自远端至近端逐渐减小。
本申请还提供一种封堵器紧锁系统，包括鞘管可调弯装置、装载器、推送装置及封堵器，鞘管可调弯装置包括鞘管，装载器包括装载管，装载管的远端插接于鞘管内，推送装置包括推送组合，封堵器包括近端封堵部，近端封堵部的近端设置第一收紧件，近端封堵部于第一收紧件的外周设置锥面状的导滑结构，导滑结构的内径自远端至近端逐渐减小，导滑结构具有导向作用，方便所述推送组合回收封堵器至鞘管内。
本申请提供的封堵器的近端封堵部的近端于第一收紧件的外周设置锥面状的导滑结构，当需要回收封堵器至鞘管内时，由于导滑结构具有导向作用，因此封堵器能沿导滑结构轻易地进入鞘管，方便使用。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的明显变形方式。
图1是本申请的其中一实施例提供的封堵器的结构示意图。
图2是图1中沿II-II线的剖视示意图。
图3是图2中连接栓的放大图。
图4是图2中连接栓的俯视图。
图5是设置有图1中的封堵器的封堵器紧锁系统的结构示意图。
图6是图5中封堵器与推送组合的分解示意图。
图7是图6中的推送组合中的推送管的远端端面结构示意图。
图8是图6中沿VIII-VIII线的剖视示意图。
图9是图6中的推送件插入推送管后的剖视示意图。
图10是图5中的推送装置的结构示意图。
图11是图10中的推送装置的分解示意图。
图12是图10中沿XII-XII线的剖视示意图。
图13是图11中的第一外壳与第二外壳的立体分解结构示意图。
图14是图13中的第一外壳的内侧的平面结构示意图。
图15是图13中的第二外壳的内侧的平面结构示意图。
图16是图15中的第二外壳的外侧的平面结构示意图。
图17是图11中的外扣板的立体结构示意图。
图18是图11中的端盖的立体分解示意图。
图19是图18中沿XIX-XIX线的剖视图。
图20是图11中的第一夹持块、活动块及第二夹持块的立体分解结构示意图。
图21是图20中的第一夹持块的其中一侧面的结构示意图。
图22是图20中的第一夹持块的另一侧面的结构示意图。
图23是图20中的第二夹持块的侧面结构示意图。
图24是图20中的活动块的放大图。
图25是图11中的按钮的放大图。
图26是图11中的第一转动机构的结构示意图。
图27是图26中沿XXVII-XXVII线的剖视图。
图28是图26中的转动柱的立体结构示意图。
图29是图11中的第二转动件的立体结构示意图。
图30是图29中的第二转动件的侧面示意图。
图31是图30中沿XXXI-XXXI线的剖视图。
图32是图11中的推送装置的组合图。
图33是图32中沿XXXIII-XXXIII线的剖视图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请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申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
此外，以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请中所提到的方向用语，例如，“上”、“下”、“前”、“后”、“左”、“右”、“内”、“外”、“侧面”等，仅是参考附加图式的方向，因此，使用的方向用语是为了更好、更清楚地说明及理解本申请，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
方位定义：为了描述清晰，以下将手术过程中，靠近操作者的一端称为“近端”，将远离操作者的一端称为“远端”；轴向指平行于医疗器械远端中心和近端中心连线的方向；上述定义只是为了表述方便，并不能理解为对本申请的限制。
请参阅图1至图4，本申请提供一种封堵器10，包括近端封堵部11、远端封堵部15及置于近端封堵部11和远端封堵部15之间的腰部18。近端封堵部11的近端设置第一收紧件110，近端封堵部11于第一收紧件110的外周设置锥面状的导滑结构111，导滑结构111 的内径自远端至近端逐渐减小。本实施例中，导滑结构111为倒圆锥面结构。
本申请封堵器10的近端封堵部11的近端于第一收紧件110的外周设置锥面状的导滑结构111，当封堵器10紧锁不成功时，需要回收封堵器10至鞘管内，由于导滑结构111具有导向作用，因此封堵器10能轻易地进入鞘管，方便使用。导滑结构111的近端的外径略小于鞘管远端的内径，能方便封堵器10回收时导滑结构111的近端插入鞘管内。
第一封堵件11、第二封堵件15及腰部18均为金属丝编织而成具有内部空间的双层圆盘结构，金属丝的中间弯折形成腰部18。金属丝可以是但不限于镍钛合金、钴铬合金、不锈钢或其他生物相容性良好的金属材料，优选超弹性形状记忆合金镍钛丝。近端封堵部11和/或远端封堵部15的内部设置至少一阻流膜，阻流膜可以采用缝合方式或粘合方式固定在近端封堵部11和远端封堵部15的内部，阻流膜可以是但不限于聚四氟乙烯薄膜、聚氨酯薄膜、或聚酰亚胺薄膜等。
在其他实施例中，第一封堵件11、第二封堵件15及腰部18可以采用金属管切割后形成网格状或者框架结构。
如图2所示，近端封堵部11包括与腰部18相连且朝近端凹陷的第一环形凹槽112，以及与第一环形凹槽112的外边缘相连第一侧壁113。第一侧壁113的横截面概呈V形，第一侧壁113自第一环形凹槽112的外边缘向近端倾斜延伸一段长度后再弯折向远端倾斜延伸连接至导滑结构111的远端，使第一侧壁113与导滑结构111围成向远端凹陷的环形谷口115。第一侧壁113与第一环形凹槽112围成环状的第一夹持肩116，第一夹持肩116的横截面概呈V形。
具体的，第一环形凹槽112编织后的金属丝先以与轴向方向30度-45度夹角向近端方向延伸形成第一侧壁113，之后往远端折返形成环形谷口115。腰部18形成于环形谷口115与第一收紧件110的连接处。在封堵器10开始夹持破口时，近端封堵部11能提供最大的夹持力，有利于封堵器10的内皮化。
第一收紧件110包括设置于近端封堵部11近端的内接套117及与内接套117固定的凸出部118，金属丝的近端汇聚定位于内接套117与凸出部118之间。内接套117与凸出部118之间的金属丝可以采用焊接、卡接等固定方式。
本实施例中，内接套117为两端开口的钢套筒，凸出部118也是两端开口的筒体，内接套117的内径大于凸出部118的外径，内接套117可以设置于近端封堵部11的内部或外部，内接套117套接于凸出部118，金属丝的近端位于内接套117的内壁与凸出部118的外壁之间。优选的，内接套117位于近端封堵部11的内部，凸出部118的远端延伸至近端封堵部11的内部，内接套117套接于凸出部118的远端，金属丝的近端内折后定位于内接套117的内壁与凸出部118远端的外壁之间。内接套117设置于近端封堵部11的内部，封堵器10在紧锁后可以减少第一收紧件110轴向凸出近端封堵部11的长度，能降低术后并发症的风险。凸出部118轴向开设通孔1182，凸出部118的外壁设置外螺纹1184。
远端封堵部15包括与腰部18相连且朝远端凹陷的第二环形凹槽152及连接于第二环形凹槽152的外边缘的第二侧壁153，第二侧壁153自第二环形凹槽152向远端倾斜延伸并汇聚于远端封堵部15的远端。第二侧壁153与第二环形凹槽152围成第二夹持肩156，第二夹持肩156的外边缘对应第一夹持肩116的外边缘。当封堵器10在封堵破口时，第一夹持肩116与第二夹持肩156夹持于破口周围相对的两侧壁。
远端封堵部15还包括置于远端的第二收紧件150，第二环形凹槽152编织后的金属丝先以与轴心方向30度-45度的夹角向远端靠近第二收紧件150方向延伸形成第二侧壁153，金属丝再靠近第二收紧件150并固定于第二收紧件150。在封堵器10开始夹持破口时，因远端封堵部15的第二环形凹槽152、第二侧壁153和第二夹持肩156以及近端封堵部11的第一环形凹槽112、第一侧壁113和第一夹持肩116这些特定的结构能提供最大的夹持力， 且有利于封堵器10的内皮化。
请参照图2-图3，第二收紧件150包括外接套157和与外接套157近端连接的连接栓158，金属丝的远端汇聚定位于外接套157与连接栓158远端之间，连接栓158向近端延伸，连接栓158近端的外壁设置外螺纹1582，连接栓158近端的外径略小于凸出部118的通孔1182的内径，向近端移动连接栓158能使连接栓158的近端穿过通孔1182而螺接于螺母。外接套157与连接栓158之间的金属丝可以采用焊接、卡接等固定方式。连接栓158靠近外接套157的一端在径向方向上设置凸盘1585，凸盘1585的外径大于凸出部118的通孔1182的内径。凸盘1585可以为圆环状、方形状或其他形状，只需满足凸盘1585能被挡止于凸出部118远端于通孔1182的四周即可。外接套157与连接栓158之间的金属丝可以采用焊接、卡接等固定方式，具体地，外接套157可以是两端开口的圆筒，金属丝的远端焊接于圆筒的内侧，连接栓158的远端端口沿径向设置凸面，凸面的直径大于圆筒的直径，连接栓158近端穿过圆筒且凸面卡和于圆筒的远端端面，另外，外接套157也可以是其近端往远端方向设置内腔的结构，连接栓158的远端固定于内腔内，金属丝焊接于外接套157和连接栓158之间，本实施例采用的是后一种结构。
如果连接栓158上没有设置凸盘1585，在封堵器10的紧锁过程中，连接栓158往近端方向拉伸，当作用于连接栓158的作用力较大时，可能将与连接栓158固定的由金属丝编制而成的第二封堵件15穿过凸出部118的通孔1182而拉入破口，从而使第二封堵器15的边缘翘起而形成类喇叭状结构，第二封堵器15翘起后不能对破口周围的组织形成夹持力，影响对破口的封堵效果；而本申请的封堵器10的连接栓158的凸盘1585在连接栓158拉动远端封堵部15靠近破口时，凸盘1585能止挡于凸出部118的远端，以能起到阻挡作用，可以确保远端封堵部15位于封堵器10的腔内且不会被连接栓158拉入破口，防止第二封堵器15边缘的翘起，确保第一夹持肩116和第二夹持肩156对破口以及设置于近端封堵部11、远端封堵部15和腰部18三者内部的阻流膜形成良好的夹持作用。
在连接栓158没有与螺母锁固之前，连接栓158位于封堵器10的内部，且连接栓158的近端通过封堵器10的腰部18。连接栓158近端面的中部轴向开设螺孔1583。
第一环形凹槽112与第二环形凹槽152相对地设置于腰部18的近端与远端，第一环形凹槽112与第二环形凹槽152围成环形空间，当封堵器10装于破口时，破口周围的组织插入环形空间内，第一夹持肩116及第二夹持肩156能夹持于破口周围的组织相对的两侧壁，且更有利于封堵器的内皮化。
优选的，连接栓158的外螺纹1582的螺纹旋入方向与凸出部118的外螺纹1184的螺纹旋入方向相反。具体的，当连接栓158的外螺纹1582为左旋螺纹时，凸出部118的外螺纹1184为右旋螺纹；当连接栓158的外螺纹1582为右旋螺纹时，凸出部118的外螺纹1184为左旋螺纹。
在其他实施例中，封堵器10可以省略内接套117及外接套157，金属丝的远端汇聚定位于连接栓158远端并采用焊接定位，金属丝的近端汇聚定位于凸出部118的远端并采用焊接定位。
如图5所示，本申请还提供封堵器紧锁系统，其包括封堵器10、鞘管可调弯装置20、扩张器30、设置于鞘管可调弯装置20近端的装载器40、以及设置于装载器40的近端的推送装置60。鞘管可调弯装置20包括壳体21、近端置于壳体21内的鞘管23，以及用于调弯鞘管23的可弯曲远端的调节机构25。装载器40包括装载管42及设置于装载管42的近端的密封座44，装载管42的远端可插接于鞘管23内。推送装置60可推送封堵器10，推送装置60包括具有容置空间的壳体61、部分置于壳体61内的第一推送组件64及部分套接于壳体61的第二推送组件67、以及推送组合68，推送组合68的近端置于壳体61内。
扩张器30为细长的圆柱状结构，扩张器30的远端直径逐渐减小形成类圆锥状结构。 具体的，扩张器30包括扩张杆32及设置于扩张杆32的近端的连接部35，扩张杆32的远端直径逐渐减小形成类圆锥状结构，类圆锥状结构方便扩张杆32插入鞘管23内。在手术过程中，需先将扩张器30组装至鞘管可调弯装置20内，以组成扩张组件。
如图5至图9所示，推送组合68包括推送件682、活动地套设于推送件682外围的推送管684，以及定位于推送管684远端内的螺母689。推送件682远端可拆卸地连接于封堵器10的连接栓158，推送管684远端的内壁设置对应凸出部118的外螺纹1184的内螺纹6842。第一推送组件64包括滑动机构65，滑动机构65能驱动推送件682在推送管684内沿轴向往复滑动，以带动连接栓158抵接或远离螺母689的螺孔；第二推送组件67包括转动机构，转动机构能驱动推送管684转动，并带动螺母689转动使连接栓158螺接于螺母689。在连接栓158螺接于螺母689的过程中，由于连接栓158的外螺纹1582的螺纹旋入方向与凸出部118的外螺纹1184的螺纹旋入方向相反，即连接栓158和螺母689的紧固方向与凸出部118的外螺纹1184和推送管684的内螺纹6842的紧固方向相反，能使凸出部118的外螺纹1184与推送管684的内螺纹6842分离。即当连接栓158螺接于螺母时，同时还能实现凸出部118与推送管684分离；当连接栓158与螺母689分离时，同时还能实现凸出部118与推送管684螺接，因此，封堵器10不仅紧锁的可靠性高，封堵效果佳，且使用方便，操作简单。
具体的，推送组合68为钢缆组合，推送件682是具有良好弹性的钢缆，推送管684是具有良好弹性的钢缆管，钢缆可活动地插接于钢缆管内。推送管684包括主体段6841及设置于主体段6841的远端的延伸段6843，螺母689可定位于延伸段6843的内部，内螺纹6842位于延伸段6843远端的内壁，内螺纹6842可与凸出部118的外螺纹1184相匹配。当封堵器10与推送组合68连接时，延伸段6843和凸出部154的螺纹紧固方向与连接栓158和螺母689的紧固方向相反，且延伸段6843和凸出部154的螺牙和螺距等于或多于螺母689的螺牙和螺距，以使连接栓158的近端延伸出螺母689的近端面。
推送件682远端的外壁设置与连接栓158的螺孔1583相匹配的外螺纹6822，推送件682的远端能活动地穿过螺母689及延伸段6843。具体的，推送件682的远端面中部轴向凸设柱状的连接杆6821，连接杆6821的外径小于推送件682近端部分的外径，外螺纹6822位于连接杆6821远端的外壁。
主体段6841的外径小于延伸段6843的外径，主体段6841的内径小于延伸段6843的内径，推送管684内部在延伸段6843的近端与主体段6841的远端面之间形成台阶面6845，螺母689能抵接台阶面6845。延伸段6843近端的内壁开设卡合槽6846，螺母689能卡固于卡合槽6846内，卡合槽6846能防止螺母689在推送管684内转动，螺母689可以在延伸段6843内沿轴向滑动。具体的，卡合槽6846是在延伸段6843近端的内壁径向规则内凹形成，卡合槽6846可卡合螺母689，螺母689可以为如六角螺母，卡合槽6846是对应六角螺母的六边形凹槽，即卡合槽6846的径向横截面为六边形。因此，当螺母689卡合于卡合槽6846内时，螺母689相对于推送管684不能转动，但螺母689在延伸段6843内轴向滑动，且螺母689与台阶面6845抵接。
请一并参阅图10至图12，第一推送组件64包括滑动机构65及第一转动机构66，滑动机构65可驱动推送件682在推送管684内沿轴向滑动且定位，第一转动机构66可驱动推送件682在推送管684内转动；第二推送组件67包括第二转动机构670，第二转动机构670可驱动推送管684在推送件682外转动。
推送装置60的滑动机构65能驱动推送件682在推送管684内轴向滑动，能带动连接栓158的近端穿过凸出部118的通孔153抵接或远离定位于推送管684内的螺母689；第一转动机构66能驱动推送件682在推送管684内转动，可实现推送件682的外螺纹6822与连接栓158的螺孔1583的螺接或分离；第二转动机构670能驱动推送管684在推送件682 外转动，带动螺母689转动，使螺母689螺接于连接栓158且凸出部118的外螺纹1184与推送管684的内螺纹6842分离，或者螺母689与连接栓158分离且凸出部118的外螺纹1184与推送管684的内螺纹6842螺接。推送装置60的操作简单，使用方便，提高了推送装置60的可靠性和效率，从而减少手术的时间。
壳体61包括第一外壳611、第二外壳613、外扣板615及端盖616，第一外壳611盖接于第二外壳613以形成两端开口的类管状结构，滑动机构65轴向设置于类管状结构内，第一转动机构66设置于类管结构的近端，第二转动机构670设置于类管结构的远端，端盖616设置于第二转动机构670的远端。
如图13及图15所示，第一外壳611的内壁的远端沿轴向设置至少一第一支撑片6112及至少一第二支撑片6113，第一外壳611的内壁的近端设置至少一第三支撑片6115。第一支撑片6112、第二支撑片6113及第三支撑片6115均为半圆环状片，第一支撑片6112与第二支撑片6113间隔设置。第一支撑片6112、第二支撑片6113及第三支撑片6115的轴心线均沿轴向延伸，且第一支撑片6112、第二支撑片6113及第三支撑片6115的轴心线重合。
本实施例中，第一支撑片6112的数量为两片，两个第一支撑片6112轴向间隔平行；第二支撑片6113的数量为一片；第三支撑片6115的数量为两个，两个第三支撑片6115轴向间隔平行。
在其他实施例中，第一支撑片6112、第二支撑片6113及第三支撑片6115的数量可以是其他数值。
第一外壳611的外壁设置矩形的平面6110，平面6110的长度方向沿轴向延伸，即平面6110自远端延伸至近端。平面6110沿轴向开设条形开口6116，条形开口6116位于第二支撑片6113与第三支撑片6115之间，条形开口6116自第一外壳611的远端延伸至近端。第一外壳611的内壁于条形开口6116的至少一侧设置齿条6117，齿条6117自条形开口6116的远端延伸至近端。第一外壳611相对的两侧壁分别凸设若干卡接片6118。
本实施例中，第一外壳611的内壁于条形开口6116相对的两侧沿轴向分别开设条形槽，每一条形槽内设置齿条6117。
如图13、图15及图16所示，第二外壳613的结构与第一外壳611的结构相似，第二外壳613的内壁的远端沿轴向设置至少一第四支撑片6132及至少一第五支撑片6133，第二外壳613的内壁的近端设置至少一第六支撑片6135。第四支撑片6132、第五支撑片6133及第六支撑片6135均为半圆环状片，第四支撑片6132与第五支撑片6133间隔设置。第四支撑片6132、第五支撑片6133及第六支撑片6135的轴心线均沿轴向延伸，且第四支撑片6132、第五支撑片6133及第六支撑片6135的轴心线重合。当第一外壳611盖接于第二外壳613时，第一外壳611的第一支撑片6112、第二支撑片6113及第三支撑片6115分别与第二外壳613的第四支撑片6132、第五支撑片6133及第六支撑片6135一一对应；并且第一支撑片6112与对应的第四支撑片6132围成圆环形的支撑片、第二支撑片6113与第五支撑片6133围成圆环形的支撑片，以及第三支撑片6115与对应的第六支撑片6135围成圆环形的支撑片。
本实施例中，第四支撑片6132的数量为两片，两个第四支撑片6132间隔平行；第五支撑片6133的数量为一片；第六支撑片6135的数量为两个，两个第六支撑片6135间隔平行。
在其他实施例中，第四支撑片6132、第五支撑片6133及第六支撑片6135的数量可以是其他数值。
第二外壳613的内壁沿轴向凸设至少一导轨6136，导轨6136位于第五支撑片6133与第六支撑片6135之间，导轨6136自远端延伸至近端。本实施例中，第二外壳613的内壁的中部间隔平行地凸设两个导轨6136，两个导轨6136之间沿轴向间隔设置若干定位块 6137，每一定位块6137开设卡孔。第二外壳613的外壁的中部开设安装口6138，第二外壳613于安装口6138的四周开设若干卡孔6139。第二外壳613相对的两侧壁分别凸设若干弹性的卡接钩6131，这些卡接钩6131与第一外壳611的卡接片6118一一对应。
如图16至图17所示，外扣板615是外凸的弧形片，外扣板615与第二外壳613的安装口6138对应，外扣板615面朝安装口6138的侧面凸设若干定位柱6151及若干卡钩6153，这些定位柱6151与第二外壳613的定位块6137的卡孔一一对应，这些卡钩6153与第二外壳613的卡孔6139一一对应。外扣板615的外壁设置防滑条纹或凸起等，以增加摩擦作用，方便手指对输送装置60的握紧，有利于操作输送装置60。
如图18及图19所示，端盖616呈圆锥体结构，端盖616包括帽体6160及连接于帽体6160的远端的套头6165，端盖616轴向地开设通孔6161，通孔6161穿通帽体6160及套头6165的中部。帽体6160内部开设锥形腔，帽体6160的近端内壁开设环形凹槽6162，环形凹槽6162的轴心线与通孔6161的轴心线重合。帽体6160的后端于锥形腔内设置相对的两个卡块6164。
套头6165卡接于帽体6160的远端，具体的，帽体6160的远端于通孔6161的内周面凸设卡接环6163，套头6165的近端面于通孔6161的四周凸设延伸柱，延伸柱的近端径向凸设一对凸片6167，套头6165通过延伸柱插入帽体6160的通孔6161后，凸片6167卡接于帽体6160的卡接环6163，从而将套头6165固定于帽体6160。套头6165由如橡胶、硅胶等软性材料制成，推送组合68的近端穿过套头6165及帽体6160的通孔6161后连接于壳体61内。由于套头6165是软性材料制成的，因此，套头6165能减少因推送组合68的晃动与端盖616的远端端口的摩擦磨损。
请一并参阅图2至图31，滑动机构65沿轴向滑动设置于壳体61，滑动机构65包括沿轴向延伸设置于壳体61内的至少一导滑轨651、滑动地穿设于至少一导滑轨651的活动块653，以及可驱动活动块653沿导滑轨651滑动的滑动件650。推送件682的近端固定于活动块653，滑动件650包括第一夹持块654及第二夹持块655，以及部分外露出壳体61并连接于滑动件650的按钮656，第一夹持块654能靠近或远离第二夹持块655。活动块653设置于第一夹持块654与第二夹持块655之间，第一夹持块654与第二夹持块655相互靠近能夹紧活动块653在第一夹持块654与第二夹持块655之间；第一夹持块654与第二夹持块655相互远离，可解除对活动块653的夹紧，活动块653可以转动。
本实施例中，壳体61内轴向设置间隔平行的两个导滑轨651。
第一夹持块654概呈半圆管结构，第一夹持块654的外壁的中部设置矩形的顶面6541，顶面6541的长度方向沿第一夹持块654的轴向延伸。第一夹持块654的部分结构能穿过条形开口6116且可沿条形开口6116滑动，具体的，顶面6541的中部凸设滑条6542，滑条6542的长度方向沿顶面6541的长度方向延伸，滑条6542能滑动插接于第一外壳611的条形开口6116内。顶面6541于滑条6542的至少一侧设置卡齿6544，卡齿6544能卡接于第一外壳611对应的齿条6117。优选的，顶面6541于滑条6542相对的两侧均设置卡齿6544，两个卡齿6544能分别卡接于第一外壳611的两个齿条6117。顶面6541于滑条6542相对的两端分别凸设连接柱6545。第一夹持块654背朝顶面6541两侧面分别凸设两个导滑柱6546及一导滑板6547，每一侧的导滑板6547位于同一侧的两个导滑柱6546之间。第一夹持块654的内壁的中部开设第一夹持槽6548，第一夹持槽6548可收容活动块653的外壁。
第二夹持块655概呈半圆管结构，第二夹持块655的外壁的中部轴向地开设相互间隔的两个导槽6552，两个导槽6552对应第二外壳613的导轨6136，第二夹持块655可沿导轨6136滑动。第二夹持块655相对的两侧面分别开设两个导滑孔6554及一导入孔6556，每一侧的导入孔6556位于同一侧的两个导滑孔6554之间。第二夹持块655的内壁的中部开设第二夹持槽6558，第二夹持槽6558可收容活动块653的外壁。
活动块653是圆柱体，推送件682的近端固定于活动块653的中部，具体的，活动块653的远端面的中部沿其轴向开设固定孔6532，推送件682的近端固定于固定孔6552内。活动块653的端面于固定孔6532相对的两侧开设两个通孔6534，每一通孔6534沿轴向延伸并穿通活动块653的近端面及远端面，每个通孔6534用于穿置一导滑轨651。活动块653的外壁开设连通固定孔6532的若干焊接孔6535，推送件682通过向焊接孔6535内加入焊锡而固定于活动块653。
第一夹持块654与第二夹持块655之间设置弹性件658，弹性件658能迫使第一夹持块654远离第二夹持块655。优选的，弹性件658是套设于导滑柱6546外的弹簧。
按钮656的外壁的中部设置凹陷6561，凹陷6561的表面设置若干防滑条6563，凹陷6561内可插入手指，方便操作按钮656。按钮656背朝凹陷6561的一侧相对的两端分别凸设连接块6564，每一连接块6564背朝凹陷6561的侧面开设连接孔6566。两个连接孔6566对应第一夹持块654的两个连接柱6545。
在其他实施例中，按钮656可以与第一夹持块654一体成型，即，第一夹持块654设置穿过条形开口6116的按钮。
图26至图28展示了第一转动机构66的结构示意图，第一转动机构66包括固定于导滑轨651的第一转动件662及沿推送件682的轴心线转动地设置于壳体61内的转动柱664。具体的，第一转动机构66固定连接于导滑轨651的近端，转动柱664固定连接于导滑轨651的远端，导滑轨651的轴心线与推送件682的轴心线间隔平行。第一转动件662沿推送件682的轴心线转动地设置于壳体61的近端，第一转动件662的转动通过导滑轨651可带动活动块653及转动柱664转动，从而使推送件682转动。
具体的，第一转动件662包括手柄部6621及凸设于手柄部6621的远端面的中部的转动杆6623，转动杆6623为圆柱体，转动杆6623的外壁沿其周向开设两个环形的导槽6625，两个导槽6625对应第一外壳611的第三支撑片6115与第二外壳613的第六支撑片6135围成的环形支撑片，两个导槽6625的轴心线与第一转动件662的轴心线重合，第一转动件662可沿导槽6625转动。转动杆6623背朝手柄部6621的端面开设间隔的两个固定孔6626，两个固定孔6626的轴心线与转动杆6623的轴心线不重合，两根导滑轨651的近端分别固定于两个固定孔6626内。手柄部6621的外壁设置若干防滑槽6627，以方便转动第一转动件662。
转动柱664是圆柱体，转动柱664的外壁沿其周向开设导槽6642，所述导槽6642对应第一外壳611的第二支撑片6113与第二外壳613的第五支撑片6133围成的环形支撑片，转动柱664能沿导槽6642转动。转动柱664的中部轴向开设穿通其近端面及远端面的通孔6643，推送件682能活动地穿过通孔6643。通孔6643的轴心线与导槽6642的轴心线重合。转动柱664的近端面于通孔6643相对的两侧开设两个固定孔6646，两根导滑轨651的远端分别固定于两个固定孔6646内。
图29至图31展示了第二转动件670的结构示意，第二转动件670沿推送件682的轴心线转动地设置于壳体61的远端，第二转动件670是圆柱体，第二转动件670的中部轴向开设通孔6701，推送管684的近端固定于通孔6701内，推送件682活动穿过通孔6701。通孔6701的轴心线与推送管684的轴心线重合，第二转动件670的轴心线与通孔6701的轴心线重合。
具体的，第二转动件670包括圆柱形的操作部6702、凸设于操作部6702的近端面中部的转动部6704，以及凸设于操作部6702的远端面的环形凸片6705。操作部6702的外壁设置防滑条，这些防滑条方便手指转动第二转动件670。转动部6704是圆柱体，转动部6704的外壁沿其周向开设两个环形的导槽6706，两个导槽6706对应第一外壳611的第一支撑片6112与第二外壳613的第四支撑片6132围成的环形支撑片，两个导槽6706的轴心线与通 孔6701的轴心线重合，第二转动件670能沿导槽6706转动。环形凸片6705的轴心线与通孔6701的轴心线重合，环形凸片6705沿其径向设置相对的两个卡钩6707，两个卡钩6707与帽体6160的两个卡块6164对应。通孔6701近端的内壁设置内螺纹6708，推送管684的近端的外壁开设对应内螺纹6708的外螺纹。
请一并参阅图10至图33，组装推送装置60时，将推送件682的近端可活动地穿过转动柱664的通孔6643后固定于活动块653的固定孔6532内，将两个导滑轨651分别可滑动地穿过活动块653的两个通孔6534，将两个导滑轨651的远端分别固定于转动柱664的两个固定孔6646内，将两个导滑轨651的近端分别固定于第一转动件662的两个固定孔6626内，活动块653可滑动地穿设于导滑轨651且位于第一转动件662与转动柱664之间；将这些弹性件658分别套装于这些导滑柱6546，将活动块653放置于第一夹持块654与第二夹持块655之间，将第一夹持块654盖接于第二夹持块655，活动件653可活动地夹持于第一夹持块654的第一夹持槽6548与第二夹持块655的第二夹持槽6558围成的收容空间内，导滑柱6546可滑动地插入对应的导滑孔6554内，弹性件658弹性抵顶于第一夹持块654与第二夹持块655之间，第一夹持块654靠近第二夹持块655使导滑板6547伸入导入孔6556卡合连接并可带动第二夹持块655滑动；导滑板6547的外壁抵接导入孔6556的内周面，导滑板6547与导入孔6556之间无间隙，能防止第一夹持块655在轴向方向相对于第二夹持块655位移，从而能更加方便、准确地将活动块653带动至适当位置并定位。将两个导滑轨651放置于第一外壳611与第二外壳613之间，使第一夹持块654的连接柱6545正对第一外壳611的条形开口6116，将第一外壳611的第二支撑片6113插接于转动柱664的导槽6642内，两个第三支撑片6115分别插接于第一转动件662的两个导槽6625内。此时，滑条6542及连接柱6545均插接于条形开口6116内，滑条6542能沿条形开口6116轴向滑动，第一夹持块654的两个卡齿6544分别对应两个齿条6117。将按钮656的两个连接块6564套接于两个连接柱6545，按钮656的凹陷6561外露出第一外壳611，按钮656能沿条形开口6116滑动。
将套头6165套接于帽体6160的远端，具体的，将套头6165的一对凸片6167卡接于帽体6160的卡接环6163；将端盖616卡接于第二转动件670的远端，具体的，将环形凸片6705插入帽体6160的环形凹槽6162内，两个卡钩6707分别卡接于两个卡块6164，从而使端盖616固定于第二转动件670，端盖616的通孔6161轴心线与第二转动件670的通孔6701的轴心线重合。在其他实施例中，可以将第二转动件670的卡钩6707及帽体6160的卡块6164省略，第二转动件670的环形凸片6705可转动地插接于帽体6160的环形凹槽6162内，使端盖616可转动地连接于第二转动件670的远端。将推送管684的近端穿过端盖616的通孔6161后固定于第二转动件670的通孔6701内，具体的，将推送管684的外螺纹螺接于第二转动件670的内螺纹6708。在其他实施例中，推送管684的近端可以通过焊接、胶接或卡接的方式固定于通孔6161内。
将推送件682的远端自第二转动件670的近端穿过通孔6701和推送管684内，使第二转动件670滑动至第一外壳611的远端，并将第一外壳611的两个第一支撑片6112分别插接于第二转动件670的两个导槽6706内；将第二外壳613连接于第一外壳611，第二外壳613的卡接钩6131分别卡接于第一外壳611的卡接片6118。此时，第二外壳613的两个第四支撑片6132分别插接于第二转动件670的两个导槽6706内、第五支撑片6133收容于转动柱664的导槽6642内、两个第六支撑片6135分别插接于第一转动件662的两个导槽6625内，以及两个导轨6136分别收容于第二夹持块655的两个导槽6552内，弹性件658抵推第一夹持块654的卡齿6544卡接于齿条6117，第二转动件670的操作部6702外露出所述壳体61。再将外扣板615卡接于第二外壳613的安装口6138内，具体的，外扣板615的定位柱6151卡接于对应的定位块6137的卡孔内，卡钩6153卡接于对应的卡孔6139内， 即安装完成。
使用推送装置时，按压按钮656使第一夹持块654朝向第二夹持块655移动，弹性件658发生弹性变形，直至活动块653被第一夹持块654与第二夹持块655夹紧定位，第一夹持块654的卡齿6544与齿条6117分离，沿第一外壳611的条形开口6116向近端或远端滑动按钮656，使活动块653随第一夹持块654与第二夹持块655向近端或远端滑动，以带动推送件682在推送管684内向近端或远端滑动，以实现推送件682的轴向滑动；当推送件682滑动至合适位置时，解除对按钮656的按压，弹性件658弹性复位而抵推第一夹持块654远离第二夹持块655，至第一夹持块654的卡齿6544卡接于齿条6117，定位滑动件650，以防止活动块653在轴向的滑动，从而对推送件682进行轴向定位。当需要转动推送件682时，解除对按钮656的按压，使第一夹持块654远离第二夹持件655，转动第一转动件662，带动导滑轨651、活动块653及转动柱664转动，即活动件653能在第一夹持块654的第一夹持槽6548与第二夹持块655的第二夹持槽6558围成的空间内沿推送件682的轴心线转动，从而带动推送件682相对于推送管684转动。当需要转动推送管684时，转动第二转动件670的操作部6702使第二转动件670沿推送件682的轴心线转动，由于推送管684的近端固定于第二转动件670的通孔6701内，因此推送管684随第二转动件670转动。
推送装置60的滑动机构65能驱动推送件682沿轴向滑动，从而方便改变与推送件682的远端固定的封堵器在血管中的位置，并能控制封堵器的释放速度，当推送件682输送封堵器移动到合适位置后，松开按钮656，第一夹持块654在弹性件658的复位作用力下向第一外壳611运动，使卡齿6544与齿条6117卡合，以实现对推送件682和封堵器的定位，因此，滑动机构65可方便可靠地移动和定位封堵器。
封堵器紧锁系统在介入手术中，先确定好穿刺位置并穿刺完成后，将扩张器30的扩张杆32的远端自鞘管可调弯装置20的近端穿过插入鞘管23并露出于鞘管23的远端，因扩张器30的远端为直径逐渐减小形成类圆锥状结构，在影像仪器的显影作用下，手术人员借助于扩张器30的远端结构能方便地将鞘管导入到病变位置附近，到达病变位置附近后，再撤出扩张器30，保留鞘管23在体内以建立由体外到体内的通道；将推送装置60的推送组合68的远端穿过装载器40的密封座44和装载管42，再将推送件682的远端和推送管684的远端相配合地同时与封堵器10可拆卸地固定，改变推送件682与推送管684的相对位置以将封堵器10在轴向方向上拉伸，向近端移动推送组合68使封堵器10的导滑结构111插入装载管42，以方便封堵器10易收入装载器40的装载管42内腔；将装载管42远端插入鞘管23内，以得到装载封堵器10的输送系统；手握推送装置60的壳体61向远端推送推送组合68，将封堵器10送达鞘管可调弯装置20的鞘管23远端端口内，通过转动鞘管可调弯装置20和调弯鞘管23使鞘管23远端正对病变位置的破口，缓慢地推动输送装置60的按钮656使推送组合68往破口方向移动使封堵器10从鞘管23中露出，并将封堵器10释放到破口的合适位置；滑动输送装置60的按钮656使推送件682沿轴向往近端方向慢慢移动，使封堵器10的近端封堵部11和远端封堵部15位于破口的两端，在输送装置60的滑动机构65、第一转动机构66和第二转动机构670的作用下，完成封堵器10对破口的封堵锁定和推送件682和推送管684与封堵器10脱离。此时，近端封堵部11的第一夹持肩116和远端封堵部15的第二夹持肩156对所述破口四周的组织进行良好的夹持，且更有利于封堵器的内皮化。
以上是本申请实施例的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请实施例原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。

Claims (20)

  1. 一种封堵器，包括近端封堵部，其特征在于，所述近端封堵部的近端设置第一收紧件，所述近端封堵部于所述第一收紧件的外周设置锥面状的导滑结构，所述导滑结构的内径自远端至近端逐渐减小。
  2. 根据权利要求1所述的封堵器，其特征在于，所述封堵器还包括远端封堵部及置于所述近端封堵部和所述远端封堵部之间的腰部，所述近端封堵部包括与所述腰部相连且朝近端凹陷的第一环形凹槽，以及与所述第一环形凹槽的外边缘相连第一侧壁，所述第一侧壁自所述第一环形凹槽向近端倾斜延伸一段长度后再弯折向远端倾斜延伸连接至所述导滑结构的远端，所述第一侧壁与所述导滑结构围成向远端凹陷的环形谷口，所述第一侧壁与所述第一环形凹槽围成第一夹持肩。
  3. 根据权利要求2所述的封堵器，其特征在于，所述近端封堵部为金属丝编织而成具有内部空间的结构，所述第一环形凹槽编织后的金属丝先以与轴向方向30度-45度夹角向近端方向延伸形成所述第一侧壁，之后往远端折返形成所述环形谷口。
  4. 根据权利要求2所述的封堵器，其特征在于，所述远端封堵部包括与所述腰部相连且朝远端凹陷的第二环形凹槽及连接于所述第二环形凹槽的外边缘的第二侧壁，所述第二侧壁自所述第二环形凹槽向远端倾斜延伸并汇聚于所述远端封堵部的远端，所述第二侧壁与所述第二环形凹槽围成第二夹持肩，所述第二夹持肩与所述第一夹持肩相对设置。
  5. 根据权利要求4所述的封堵器，其特征在于，所述远端封堵部为金属丝编织而成具有内部空间的结构，所述远端封堵部还包括置于远端的第二收紧件，所述第二环形凹槽编织后的金属丝先以与轴心方向30度-45度的夹角向远端靠近所述第二收紧件方向延伸形成所述第二侧壁，所述金属丝再靠近所述第二收紧件并固定于所述第二收紧件。
  6. 根据权利要求4所述的封堵器，其特征在于，所述第一环形凹槽与所述第二环形凹槽相对地设置于所述腰部的近端与远端。
  7. 根据权利要求3所述的封堵器，其特征在于，所述第一收紧件包括置于所述近端封堵部近端的内接套及与所述内接套固定的凸出部，所述金属丝的近端汇聚定位于所述内接套与所述凸出部之间。
  8. 根据权利要求7所述的封堵器，其特征在于，所述凸出部轴向开设通孔，所述凸出部的外壁设置外螺纹。
  9. 根据权利要求8所述的封堵器，其特征在于，所述远端封堵部还包括外接套和与所述外接套连接的连接栓，所述金属丝的远端汇聚定位于所述外接套与所述连接栓之间，所述连接栓向近端延伸，所述连接栓近端的外壁设置外螺纹，所述连接栓可穿过所述通孔并螺接于螺母。
  10. 根据权利要求9所述的封堵器，其特征在于，所述连接栓的外螺纹的螺纹方向与所述凸出部的外螺纹的螺纹方向相反。
  11. 根据权利要求9所述的封堵器，其特征在于，所述连接栓靠近所述外接套的一端在径向方向上设置凸盘，所述凸盘的外径大于所述通孔的内径。
  12. 一种封堵器紧锁系统，其特征在于，包括鞘管可调弯装置、装载器、推送装置及如权利要求1至11任意一项所述的封堵器，所述鞘管可调弯装置包括鞘管，所述装载器包括装载管，所述装载管的远端插接于所述鞘管内，所述推送装置包括推送组合，所述推送组合能回收封堵器至鞘管内。
  13. 根据权利要求12所述的封堵器紧锁系统，其特征在于，所述推送组合包括推送件、活动地套设于所述推送件的推送管，以及定位于所述推送管远端内的螺母；所述推送件远端可拆卸地连接于所述封堵器的连接栓，所述推送管远端的内壁设置对应凸出部的外螺纹的内螺纹。
  14. 根据权利要求13所述的封堵器紧锁系统，其特征在于，所述推送管包括主体段及设置于所述主体段的远端的延伸段，所述螺母可定位于所述延伸段的内部，所述内螺纹位于所述延伸段远端的内壁，所述内螺纹可与凸出部的外螺纹相匹配。
  15. 根据权利要求14所述的封堵器紧锁系统，其特征在于，所述延伸段和所述凸出部的螺纹紧固方向与所述连接栓和所述螺母的紧固方向相反。
  16. 根据权利要求14所述的封堵器紧锁系统，其特征在于，所述延伸段和所述凸出部的螺牙和螺距等于或多于所述螺母的螺牙和螺距，以使所述连接栓的近端延伸出所述螺母的近端面。
  17. 根据权利要求14所述的封堵器紧锁系统，其特征在于，所述主体段的外径小于所述延伸段的外径，所述主体段的内径小于所述延伸段的内径，所述推送管内部在所述延伸段的近端与所述主体段的远端面之间形成台阶面，所述螺母能抵接所述台阶面。
  18. 根据权利要求17所述的封堵器紧锁系统，其特征在于，所述延伸段近端的内壁开设卡合槽，所述螺母能卡固于所述卡合槽内，所述卡合槽能防止所述螺母在所述推送管内转动，所述螺母可以在所述延伸段内沿轴向滑动。
  19. 根据权利要求13所述的封堵器紧锁系统，其特征在于，所述推送件远端的外壁设置与所述连接栓的螺孔相匹配的外螺纹，所述推送件的远端能活动地穿过所述螺母及延伸段。
  20. 根据权利要求13所述的封堵器紧锁系统，其特征在于，所述推送装置包括具有容置空间的壳体、部分置于所述壳体内的第一推送组件及部分套接于所述壳体的第二推送组件，所述第一推送组件包括滑动机构及第一转动机构，所述滑动机构可驱动所述推送件在所述推送管内沿轴向滑动且定位，所述第一转动机构可驱动所述推送件在所述推送管内转动；所述第二推送组件包括第二转动机构，所述第二转动机构可驱动所述推送管在所述推送件外转动。
PCT/CN2020/084304 2019-04-11 2020-04-10 封堵器及封堵器紧锁系统 WO2020207485A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/496,046 US20220022856A1 (en) 2019-04-11 2021-10-07 Occluder and occluder fastening system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910291642.4 2019-04-11
CN201920489828.6U CN210408509U (zh) 2019-04-11 2019-04-11 封堵器及封堵器紧锁系统
CN201920489828.6 2019-04-11
CN201910291642.4A CN111803166A (zh) 2019-04-11 2019-04-11 封堵器及封堵器紧锁系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/496,046 Continuation US20220022856A1 (en) 2019-04-11 2021-10-07 Occluder and occluder fastening system

Publications (1)

Publication Number Publication Date
WO2020207485A1 true WO2020207485A1 (zh) 2020-10-15

Family

ID=72750947

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/084304 WO2020207485A1 (zh) 2019-04-11 2020-04-10 封堵器及封堵器紧锁系统

Country Status (2)

Country Link
US (1) US20220022856A1 (zh)
WO (1) WO2020207485A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114991484A (zh) * 2021-03-01 2022-09-02 广东博智林机器人有限公司 孔洞封堵装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110208233A1 (en) * 2004-01-22 2011-08-25 Mcguckin Jr James F Device for preventing clot migration from left atrial appendage
CN204133533U (zh) * 2014-07-04 2015-02-04 先健科技(深圳)有限公司 封堵器及封堵装置
CN204520803U (zh) * 2015-02-25 2015-08-05 上海形状记忆合金材料有限公司 分瓣式可降解封堵器
CN107397562A (zh) * 2017-07-24 2017-11-28 董念国 瓣周漏封堵器
CN109009256A (zh) * 2018-07-06 2018-12-18 华中科技大学同济医学院附属协和医院 瓣周漏封堵器
CN109247959A (zh) * 2017-07-13 2019-01-22 先健科技(深圳)有限公司 封堵器推送装置及输送系统
CN208610914U (zh) * 2017-12-20 2019-03-19 上海形状记忆合金材料有限公司 一种支气管瘘口封堵器械

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110208233A1 (en) * 2004-01-22 2011-08-25 Mcguckin Jr James F Device for preventing clot migration from left atrial appendage
CN204133533U (zh) * 2014-07-04 2015-02-04 先健科技(深圳)有限公司 封堵器及封堵装置
CN204520803U (zh) * 2015-02-25 2015-08-05 上海形状记忆合金材料有限公司 分瓣式可降解封堵器
CN109247959A (zh) * 2017-07-13 2019-01-22 先健科技(深圳)有限公司 封堵器推送装置及输送系统
CN107397562A (zh) * 2017-07-24 2017-11-28 董念国 瓣周漏封堵器
CN208610914U (zh) * 2017-12-20 2019-03-19 上海形状记忆合金材料有限公司 一种支气管瘘口封堵器械
CN109009256A (zh) * 2018-07-06 2018-12-18 华中科技大学同济医学院附属协和医院 瓣周漏封堵器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114991484A (zh) * 2021-03-01 2022-09-02 广东博智林机器人有限公司 孔洞封堵装置
CN114991484B (zh) * 2021-03-01 2023-11-21 广东博智林机器人有限公司 孔洞封堵装置

Also Published As

Publication number Publication date
US20220022856A1 (en) 2022-01-27

Similar Documents

Publication Publication Date Title
US10639044B2 (en) Ligation clip module and clip applier
US11224440B2 (en) Release device for medical tissue clips
CN111803166A (zh) 封堵器及封堵器紧锁系统
EP3689271A1 (en) Left atrial appendage occluder and left atrial appendage occlusion device
WO2021000533A1 (zh) 配合内窥镜使用的夹子装置及其夹持部
US20120109196A1 (en) Suture locks and suture lock systems
CN109700487B (zh) 输送器和输送系统
WO2020258909A1 (zh) 用于通过内窥镜的组织夹闭装置
CN111803167A (zh) 封堵器、封堵器紧锁系统及紧锁方法
WO2020207485A1 (zh) 封堵器及封堵器紧锁系统
JP4951503B2 (ja) 欠損閉鎖デバイス
US11311281B2 (en) Occluder and occlusion device
CN110974316B (zh) 封堵器
WO2020001174A1 (zh) 连接可靠的植入物推送装置及植入物输送系统
CN210408509U (zh) 封堵器及封堵器紧锁系统
US20220022885A1 (en) Occluder, occluder fastening system, and fastening method
CN114469226B (zh) 鞘管可调弯装置及腔内裂口封堵系统
CN209966453U (zh) 一种可监测腔内压力的封堵装置
CN114376629B (zh) 封堵器及封堵器紧锁系统
CN113116407A (zh) 封堵装置
CN210811288U (zh) 封堵器及封堵器紧锁系统
WO2017107955A1 (zh) 钛镍基形状记忆合金组织闭合夹、放送器、装夹器
CN216221547U (zh) 一种可变臂长内镜下固定夹及其释放机构
CN113116409A (zh) 封堵装置及封堵装置输送系统
CN219982975U (zh) 一种连发止血夹装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20787721

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20787721

Country of ref document: EP

Kind code of ref document: A1