CN212490267U - Valve prosthesis conveying system convenient to control - Google Patents
Valve prosthesis conveying system convenient to control Download PDFInfo
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- CN212490267U CN212490267U CN202022258182.6U CN202022258182U CN212490267U CN 212490267 U CN212490267 U CN 212490267U CN 202022258182 U CN202022258182 U CN 202022258182U CN 212490267 U CN212490267 U CN 212490267U
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- 238000005452 bending Methods 0.000 claims abstract description 36
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 description 30
- 210000004204 blood vessel Anatomy 0.000 description 10
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000002792 vascular Effects 0.000 description 5
- 210000004115 mitral valve Anatomy 0.000 description 4
- 210000005245 right atrium Anatomy 0.000 description 4
- 210000002620 vena cava superior Anatomy 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 210000005241 right ventricle Anatomy 0.000 description 3
- 210000000591 tricuspid valve Anatomy 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 208000006011 Stroke Diseases 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004731 jugular vein Anatomy 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 210000001765 aortic valve Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 210000003709 heart valve Anatomy 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 210000003102 pulmonary valve Anatomy 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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Abstract
The utility model relates to the field of medical equipment, in particular to a valve prosthesis conveying system convenient to control, which comprises a valve prosthesis, a control handle, an inner pipe and an outer sheath, wherein the inner pipe and the outer sheath are connected with the control handle; or when the valve delivery system is in a bending adjusting state under the action of the bending adjusting pipe and the bending adjusting degree is kept unchanged, the linkage switching device is operated to enable the inner core pipe and the outer sheath to move relatively, so that the valve prosthesis can not be released in advance, and the valve prosthesis can be delivered to a target release position.
Description
Technical Field
The utility model belongs to the field of medical equipment, concretely relates to valve false body conveying system convenient to control.
Background
Minimally invasive transcatheter treatment of cardiovascular disease is becoming the primary treatment modality, such as coronary stents, heart valves, occluders, great vessel stents and other cardiovascular valve prostheses, requiring delivery of the valve prosthesis to the desired location in the body by a delivery device and fixation of the valve prosthesis after reaching the target location, which in one embodiment is particularly important. In the prior art, the aortic valve and the pulmonary valve are fixed mainly by means of radial supporting force of a valve prosthesis, and clamping pieces or bulges, depressions and the like are arranged on the valve prosthesis and are fixed by using the shape and characteristics of anatomical structures; the fixation of the mitral valve and the tricuspid valve is mainly added with auxiliary fixing devices such as barbs, valve leaflet clamping pieces, valve annulus clamping devices, apical fixation lines, fixation rods and the like on the basis of radial supporting force. However, because the anatomical structures of the mitral valve and the tricuspid valve are complex, for minimally invasive transcatheter products, especially when a transcervical approach mode is adopted, the diameter of the catheter and the performance of the catheter are limited, and in the process of conveying the valve prosthesis to the target position by the conveying system, because the outer sheath tube of the conveying system and the inner core tube inside the conveying system cannot realize independent movement or linkage, the artificial valve is difficult to accurately convey to the target position; in addition, the fixing device of the artificial valve cannot perform circumferential position adjustment due to the lack of a circumferential adjusting mechanism/device, so that the fixing point is deviated.
Patent CN201721010385.5 discloses a mitral valve prosthesis delivery system comprising: a handle provided with a first button; the outer tube is movably arranged on the handle and is connected with the first button, and the first button controls the outer tube to slide on the handle; the inner pipe is positioned in the outer pipe, the first end of the inner pipe is fixed on the handle, and a gap is formed between the inner pipe and the outer pipe; a tapered tip disposed at the second end of the inner tube; valve prosthesis connection structure, including a plurality of bar structures, bar structure's first end is fixed on interior pipe, and the second end is the free end, and its free end department is equipped with the clamping part that is used for fixed mitral valve prosthesis. When the first button is in an open state, the valve prosthesis connecting structure is exposed out of the outer tube, and the free end of the strip-shaped structure is in a state of being bent towards a direction far away from the inner tube. The disadvantages of this design are: when the conveying system adopts a blood vessel access mode with smaller wound, the blood vessel in a human body is bent, so that the conveying system needs to be adapted to the curvature of the blood vessel and further adjusts the conveying system and conveys the valve prosthesis under the state of bending degree adjustment, and when the bending degree adjustment of the conveying system is fixed, the inner tube and the outer tube of the conveying system can only move relatively and cannot realize synchronous linkage, and when the valve prosthesis is not completely released and needs to move axially, the valve prosthesis cannot be accurately conveyed to a target position by the valve conveying system; meanwhile, the valve delivery system does not have the function of adjusting the circumferential position of the valve prosthesis, so that the anchoring point of the valve prosthesis in the heart is uncontrollable.
Accordingly, those skilled in the art have sought to develop a valve prosthesis delivery system that is easy to maneuver, which addresses two of the following problems: 1. how to realize the relative rotation or linkage of the outer sheath tube and the inner tube under the state that the conveying catheter keeps the bending degree, so that the valve prosthesis can be conveyed to a target position; 2. how to realize the adjustment of the circumferential position of the valve prosthesis enables the anchoring position of the valve prosthesis to be more accurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a valve prosthesis conveying system convenient to control, this conveying system possesses following advantage: 1. the relative rotation or linkage of the outer sheath tube and the inner core tube is realized by operating the control handle under the state that the bending degree of the delivery catheter is kept, so that the valve prosthesis can be delivered to a target position; 2. the circumferential position of the valve prosthesis is adjusted by operating the control handle, so that the valve prosthesis can find a correct anchoring point conveniently.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a valve prosthesis conveying system convenient to control, includes valve prosthesis, brake valve lever, the inner tube and the sheath of being connected with brake valve lever, be provided with connecting piece and accent bent pipe between inner tube and the sheath, the connecting piece is connected with valve prosthesis, operates brake valve lever can make the connecting piece with outer sheath pipe realizes synchronous linkage or relative movement, when conveying system is in the state of transferring the bent under the effect of transfer elbow, operates brake valve lever adjusts the tip of transfer elbow with the distance between the tip of inner tube makes valve prosthesis is carried the target location.
In one embodiment, when the delivery system is in the bending state under the action of the bending pipe, the end part of the bending pipe is kept static, the control handle is operated to synchronously move the connecting piece and the outer sheath to the target release position, and the control handle is continuously operated to move the outer sheath relative to the connecting piece to release the valve prosthesis.
In one embodiment, the connector is fixedly connected to the inner tube.
In a preferred embodiment, an inner core tube is further disposed between the inner tube and the outer sheath, and the connecting member is fixedly connected to the inner core tube.
In one embodiment, the control handle is provided with an outer sheath control member controlling axial movement of the outer sheath, an inner core tube control member controlling axial movement of the inner core tube, an adjusting bend tube having one end connected to the adjusting bend control member, and a linkage switching device provided on the outer sheath control member or the inner core tube control member, the linkage switching device enabling the outer sheath control member and the inner core tube control member to be operated in conjunction or separately.
In one embodiment, the linkage switching device comprises a linkage control key and a locking pin, and a slot is arranged on the inner core pipe control piece; when the linkage control key is operated to enable the locking pin to be inserted into the slot, when the bending adjusting control element is operated to enable the valve delivery system to be in a bending adjusting state under the action of a bending adjusting pipe, the outer sheath control element and the inner core pipe control element can be operated together, and the inner core pipe and the outer sheath move synchronously.
In one embodiment, the valve delivery system further includes a rotating rod, the rotating rod is fixedly connected to the inner core tube, the control handle is provided with a rotating knob, the rotating knob is connected to one end of the rotating rod, and the rotating knob is operated to drive the rotating rod to rotate under the condition that the outer sheath remains stationary, so as to further drive the inner core tube to rotate.
In one embodiment, the valve delivery system further includes a rotating rod, the rotating rod is fixedly connected to the inner core tube, the control handle is provided with a rotating knob, the rotating knob is connected to one end of the rotating rod, and the rotating knob is operated to drive the rotating rod to rotate under the condition that the outer sheath remains stationary, so as to further drive the inner core tube to rotate.
In one embodiment, the valve delivery system further comprises a valve prosthesis, the valve prosthesis is provided with a limiting hole, the other end of the inner core tube is connected with the connecting piece, the connecting piece is provided with a connecting hole, a plurality of control wires are arranged between the inner tube and the inner core tube, one end of each control wire is connected with the control handle, and when the control wires are preassembled, the control wires are inserted into the limiting hole to form detachable connection after the limiting hole penetrates through the connecting hole.
In one embodiment, a guide catheter and a limiting wire are further arranged between the inner tube and the inner core tube, an anchoring unit is arranged on the valve prosthesis, the limiting wire is detachably connected to the valve prosthesis, the proximal end of the limiting wire is connected with the control handle, the distal end of the guide catheter is provided with a guide element, the distal end portion of the guide catheter can be bent, the proximal end of the guide catheter is connected with the control handle, the limiting wire penetrates through the guide element when being preassembled, and when the control handle is operated to enable the guide element on the guide catheter to move towards the distal end along the limiting wire, the distal end portion of the guide catheter is bent and deformed, so that the distal end of the guide catheter is abutted against the anchoring unit of the valve prosthesis.
In one embodiment, the valve delivery system further comprises an anchor needle and an anchor needle pusher, which are placed within the guide catheter when pre-loaded, enabling the anchor needle to secure the anchoring unit of the valve prosthesis to the target tissue when the anchor needle pusher pushes the anchor needle distally.
In one embodiment, the distal end of the limiting wire is provided with a locking hole, the valve prosthesis is provided with a connecting hole, the valve delivery system further comprises a control rod, the proximal end of the control rod is connected with the control handle, and when the valve prosthesis is preassembled, the distal end of the control rod is inserted into the locking hole after the locking hole passes through the connecting hole of the valve prosthesis; when the control handle is operated to enable the limiting wire to be tensioned and locked, the valve prosthesis, the limiting wire, the control rod and the guide catheter are connected, the relative positions of the valve prosthesis, the limiting wire, the control rod and the guide catheter are fixed, and when the control rod is operated to axially move so that the distal end of the control rod is separated from the locking hole, the valve prosthesis and the limiting wire are separated.
In one embodiment, the locking hole at the distal end of the stop wire is a compressible round hole or a U-shaped hole formed by winding a plurality of wires back.
In one embodiment, the valve prosthesis is a unitary structure with the anchoring unit.
In one embodiment, the anchoring unit is a flexible member, one end of which is connected to the valve prosthesis. In a preferred embodiment, the flexible member is deformable and made of a soft material.
In one embodiment, a support skeleton is provided on the valve prosthesis, the anchoring unit being provided on the support skeleton.
In one embodiment, the outer sheath is a tapered tube, and the distal portion of the outer sheath has a tube diameter that is greater than the tube diameter of the proximal portion of the outer sheath.
In one embodiment, the distal portion of the guiding catheter is provided with a cut.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a valve conveying system can be in when transferring curved state under the effect of transferring curved pipe, the operation linkage auto-change over device makes inner core pipe with outer sheath pipe is in synchronous linkage state, further operation control handle is adjustable the minimum curvature radius department of outer sheath extremely the distance of outer sheath farthest end, for example: when the valve conveying system is bent by a certain angle in a conveying path to adapt to the curvature of a blood vessel and the bending angle needs to be kept, and the valve prosthesis does not reach a target release position at the moment, the linkage switching device on the control handle is operated to realize synchronous axial movement of the outer sheath and the inner core tube, and the bending degree of the bending pipe is kept unchanged, so that the valve prosthesis can reach the target release position; or the linkage switching device is operated to enable the inner core tube to be kept still, and the outer sheath moves relative to the inner core tube, so that the valve prosthesis can be recovered into the outer sheath.
2. Different from the scheme that the valve prosthesis can reach the target release position by directly pushing/jacking the control handle in the prior art, the utility model can be in the bending adjusting state under the action of the bending adjusting pipe, the linkage switching device is operated to ensure that the inner core pipe and the outer sheath pipe are in the synchronous linkage state, the control handle is further operated to adjust the distance from the minimum curvature radius of the outer sheath to the farthest end of the outer sheath, so that the outer sheath and the inner core pipe synchronously move to the target release position, the valve prosthesis can be prevented from being released in advance, the central axis position of the valve prosthesis and the central axis position of the self-valve can be always in the alignment state and can not be deviated, and if the control handle is directly pushed/jacked, the central axis of the valve prosthesis and the central axis of the self-valve can not be overlapped/unparallel and the included angle can be formed between the central axis of the valve prosthesis, the valve prosthesis needs to be further adjusted in the release position before being released, operation difficulty of the operation is greatly increased, and meanwhile, the long operation time brings disadvantages to postoperative recovery of a patient. 3. Reach the scheme of adjustment/rotatory valve false body through direct rotatory control handle among the prior art, because the distance that outer sheath and vascular wall exist friction and human internal blood vessel is far away and winding and buckling, the adjustment that leads to control handle and distal end valve false body to go out is difficult to reach accurate transmission all the time, when valve false body needs specific circumference position, can't realize accurate regulation and control, and the utility model discloses set up the rotary rod, can be under the circumstances that keeps outer sheath motionless through the rotatory knob on the operation control handle, utilize the rotary rod transmission to the inner core pipe to carry out the adjustment of circumference position to valve false body, realize accurate regulation and control, can avoid simultaneously can scraping the vascular wall at adjustment in-process outer sheath, lead to the plaque to drop, the condition of appearance stroke, vascular wall stromatolite.
5. Different from other valve delivery systems, the utility model discloses well sheath sets up to the reducing pipe, and the benefit of design like this lies in: the diameter of the blood vessel can be better adapted, and the damage to the blood vessel caused by the overlarge diameter of the sheath tube is avoided.
Drawings
Fig. 1a to 1c are schematic structural views of the valve delivery system of the present invention, wherein fig. 1b is an internal structure of the delivery system.
Fig. 2 a-2 f are schematic views illustrating the process of releasing the valve prosthesis by the valve delivery system of the present invention.
Fig. 3a to 3d are schematic structural views illustrating the linkage of the outer sheath and the inner core tube by the linkage switching device of the present invention.
Fig. 4 a-4 b are schematic views illustrating the process of rotating the valve prosthesis by rotating the rotating rod of the present invention.
Fig. 5 a-5 f are schematic views of the guiding catheter of the present invention moving to the anchoring unit and completing the anchoring at the interventricular septum.
The names of the parts indicated by the numbers in the drawings are as follows: 1-control handle, 11-outer sheath control element, 12-inner core tube control element, 121-slot, 13-bending control element, 14-rotary knob, 2-inner tube, 3-outer sheath, 4-inner core tube, 41-connecting element, 411-connecting hole, 42-control wire, 5-bending tube, 6-linkage switching device, 61-linkage control key, 62-locking pin, 7-rotary rod, 8-valve prosthesis, 81-limiting hole, 82-anchoring unit, 83-fixing hole, 9-guide catheter, 91-limiting wire, 911-locking hole, 92-guide key, 93-anchoring needle, 94-anchoring needle pushing element, 95-control rod and 10-tip head.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The near end of the utility model is the end close to the operator, and the far end is the end far away from the operator.
When the delivery system is used for treating the tricuspid valve, as shown in fig. 1 a-1 c, the valve prosthesis delivery system convenient to operate and control comprises a valve prosthesis 8, a control handle 1, an inner tube 2 and an outer sheath 3 which are connected with the control handle 1, a connecting piece 41 and an elbow adjusting tube 5 are arranged between the inner tube 2 and the outer sheath 3, the connecting piece 41 is connected with the valve prosthesis 8, the control handle 1 is operated to enable the connecting piece 41 and the outer sheath 3 to realize synchronous linkage or relative movement, and when the delivery system is in an elbow adjusting state under the action of the elbow adjusting tube 5, the control handle 1 is operated to adjust the distance between the end of the elbow adjusting tube 5 and the end of the inner tube 2, so that the valve prosthesis 8 is delivered to a target position.
In one embodiment, when the valve delivery system adopts a less traumatic transvascular approach, the valve delivery system is punctured and enters the right atrium after passing through the right jugular vein and the superior vena cava, as shown in fig. 2a, because there is a certain angle between the superior vena cava and the native valve annulus, when the valve delivery system enters the right atrium from the superior vena cava, the control handle 1 needs to be operated so that the valve delivery system can adapt to the angle between the superior vena cava and the native valve annulus, at this time, the distal end portion of the valve delivery system only reaches the position of the right atrium (as shown in fig. 2 b), and the valve prosthesis needs to reach the position of the right ventricle for release, at this time, the linkage switching device 6 is operated so that the valve delivery system is in a bending adjustment state and keeps the bending adjustment degree unchanged (as shown in fig. 3a to 3 d), the outer sheath control element 11 and the inner core tube 12 on the control handle, the inner core tube 4 and the outer sheath 3 are moved synchronously, and the distance from the minimum curvature radius of the outer sheath 3 to the most distal end of the outer sheath 3 is adjusted, so that the valve prosthesis can be delivered to the target release position (i.e. the right ventricle), as shown in fig. 2 c; therefore, the operation can not only avoid the early release of the valve prosthesis 8, but also ensure that the central axis position of the valve prosthesis 8 and the central axis position of the autologous valve are always in an aligned state, and the deviation can not occur.
In one embodiment, when the delivery system is in the bending state under the action of the bending adjusting tube 5, the end of the bending adjusting tube 5 is maintained stationary, the control handle 1 is operated to synchronously move the connecting element 41 and the outer sheath 3 to the target release position, and the control handle 1 is continuously operated to move the outer sheath 3 relative to the connecting element 41 to release the valve prosthesis 8.
In a preferred embodiment, an inner core tube 4 is further disposed between the inner tube 2 and the outer sheath 3, and the connecting member 41 is fixedly connected to the inner core tube 4.
In one embodiment, the control handle 1 is provided with an outer sheath control member 11, an inner core tube control member 12 and a bending control member 13, one end of the outer sheath 3 is connected with the outer sheath control member 11, one end of the inner core tube 4 is connected with the inner core tube control member 12, one end of the bending adjusting pipe 5 is connected with a bending adjusting control piece 13, the linkage switching device 6 is arranged on the outer sheath control piece 11 or the inner core pipe control piece 12, the linkage switching device 6 enables the outer sheath control member 11 and the inner core tube control member 12 to be operated in conjunction or separately, when the sheath control member 11 and the inner core tube control member 12 are operated in conjunction, the sheath 3 and the inner core tube 4 are axially moved in synchronization, when the sheath control member 11 and the inner core tube control member 12 are separately operable, operating the sheath control member 11 causes the sheath 3 to move axially relative to the inner core tube 4.
In one embodiment, the linkage switching device 6 comprises a linkage control key 61 and a locking pin 62, and the inner core tube control member 12 is provided with a slot 121; when the interlocking control key 6 is operated to insert the locking pin 62 into the slot 121, the outer sheath control member 11 and the inner core tube control member 12 can be operated in conjunction with each other to move the inner core tube 4 and the outer sheath 3 synchronously when the bending control member 13 is operated to bend the valve delivery system by the bending adjustment pipe 5.
In one embodiment, the valve delivery system further includes a rotating rod 7, the rotating rod 7 is fixedly connected to the inner core tube 4, a rotating knob 14 (as shown in fig. 1 a) is provided on the control handle 1, the rotating knob 14 is connected to one end of the rotating rod 7, and the rotating knob 14 is operated to rotate the rotating rod 7 with the outer sheath 3 kept stationary, so as to further rotate the inner core tube 4; as shown in fig. 4a and 4b, the valve delivery system further includes a valve prosthesis 8, the valve prosthesis 8 is provided with a limiting hole 81, the other end of the inner core tube 4 is provided with a connecting member 41, the connecting member 41 is provided with a connecting hole 411, a plurality of control wires 42 are arranged between the inner tube 2 and the inner core tube 4, one end of each control wire 42 is connected with the control handle 1, and when pre-assembling, after the limiting hole 81 passes through the connecting hole 411, the control wires 42 are inserted into the limiting hole 81 to form a detachable connection; when the rotary knob 14 on the rotary control handle 1, can drive the rotary rod 7, further drive inner core pipe 4 and connecting piece 41 and take place to rotate, and the near-end and the connecting piece 41 of valve prosthesis 8 are connected, consequently can be through the rotary knob 14 on the operation control handle 1, drive valve prosthesis 8 and carry out the adjustment on the circumferential position, can let sheath 3 remain motionless simultaneously again, effectively avoid in adjustment process sheath 3 can scrape the vascular wall, lead to the plaque to drop, the condition of apoplexy, the vascular wall stromatolite appears.
In one embodiment, a guiding catheter 9 and a limiting wire 91 (shown in fig. 5 a) are further disposed between the inner tube 2 and the inner core tube 4, an anchoring unit 82 is disposed on the valvular prosthesis 8, the limiting wire 91 is detachably connected to the valvular prosthesis 8, a proximal end of the limiting wire 91 is connected to the control handle 1, a distal end of the guiding catheter 9 is provided with a guiding element 92, a distal end portion of the guiding catheter 9 is bendable, a proximal end of the guiding catheter 9 is connected to the control handle 1, the control wire 42 passes through the guiding element 92 when pre-installed, when the guiding element 92 on the guiding catheter 9 is moved distally along the control wire 42 by operating the control handle 1, the distal end portion of the guiding catheter 9 is bent and deformed, so that the distal end of the guiding catheter 9 is abutted against the anchoring unit 82 of the valvular prosthesis 8, as shown in fig. 5 b-5 d.
In one embodiment, the valve delivery system further comprises an anchoring needle 93 and an anchoring needle pusher 94, which are placed inside the guiding catheter 9 when pre-loaded, which anchoring needle 93 and anchoring needle pusher 94 achieve that the anchoring needle 93 secures the anchoring unit 82 of the valve prosthesis 8 to the target tissue when the anchoring needle pusher 94 pushes the anchoring needle 93 distally, as shown in fig. 5e and 5 f.
In one embodiment, the distal end of the position-limiting wire 91 is provided with a locking hole 911, the valve prosthesis 8 is provided with a fixing hole 83, the valve delivery system further comprises a control rod 95, the proximal end of the control rod 95 is connected with the control handle 1, and when pre-assembly is performed, after the locking hole 911 passes through the fixing hole 83 of the valve prosthesis 8, the distal end of the control rod 95 is inserted into the locking hole 911 (as shown in fig. 5 c); when the control handle 1 is operated to cause the limiting wire 91 to be tensioned and locked, the connection among the valvular prosthesis 8, the limiting wire 91, the control rod 95 and the guiding catheter 9 is formed, so that the relative positions among the two are fixed, and when the control rod 95 is operated to axially move so that the distal end of the control rod 95 is disengaged from the locking hole 911, the valvular prosthesis 8 is disengaged from the limiting wire 91, as shown in fig. 5 f.
In one embodiment, the locking hole 911 at the distal end of the position-limiting wire 91 is a compressible round hole or a U-shaped hole formed by winding a plurality of wires back.
In one embodiment, the valve prosthesis 8 is of unitary construction with the anchoring unit 82.
In one embodiment, the anchoring unit 82 is a flexible member, one end of which is connected to the valve prosthesis 8. In a preferred embodiment, the flexible member is deformable and made of a soft material.
In one embodiment, a support frame is provided on the valve prosthesis 8, on which support frame the anchoring unit 82 is provided.
In one embodiment, the outer sheath 3 is a reducer tube, the tube diameter of the distal portion of the outer sheath 3 is larger than the tube diameter of the proximal portion of the outer sheath 3; the outer sheath 3 has a tube diameter at the valve loading section that is greater than the tube diameter at the proximal end, and the design is such that: the mode of approach through the blood vessel is littleer to patient's wound, nevertheless because the pipe diameter of blood vessel is less, thick sheath pipe produces the damage to patient's blood vessel easily, is unfavorable for the recovery of postoperative.
The utility model discloses the working process step as follows:
1. the valve delivery system is punctured and enters, and then passes through the right jugular vein and the upper vena cava, the bending adjusting control part 13 on the control handle 1 is operated, so that the valve delivery system enters the right atrium after bending is adjusted, as shown in fig. 2a and 2 b;
2. operating the linkage control key 61 on the control handle 1 to enable the locking pin 62 to be inserted into the slot 121, and the outer sheath control member 11 and the inner core tube control member 12 are connected into a whole, so that the valve delivery system can operate the linkage switching device 6 to enable the inner core tube 4 and the outer sheath 3 to be in a synchronous linkage state under the state of keeping the curvature adjustment degree, and further operating the control handle 1 to adjust the distance from the minimum curvature radius of the outer sheath 3 to the farthest end of the outer sheath 4 until the valve loading section reaches the right ventricle (target release position), as shown in fig. 2 c;
3. the coordinated control key 61 is operated to withdraw the locking pin 62 from the slot 121, the sheath control element 11 is operated to move the sheath 3 to the proximal end, the rotary knob 14 is rotated to circumferentially adjust the position of the valvular prosthesis 8, the control handle 1 is further operated to make the guide catheter 9 reach the anchoring unit 82 along the path of the limiting wire 91 and complete the anchoring of the puncture needle, and then the control rod 95 is operated to axially move to make the distal end of the control rod 95 separate from the locking hole 911, so that the valvular prosthesis 8 is released from the limiting wire 91, and the anchoring of the valvular prosthesis 8 is completed, as shown in fig. 2d and 2 e;
4. operating the control handle 1 to withdraw the control wire 42, so that the proximal end of the valve prosthesis 8 is released;
5. operating the sheath control 11 so that the sheath 3 moves distally until the distal end of the sheath 3 contacts the tip head 10 and the valve delivery system is routed out of the body, as shown in figure 2 f;
the above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (7)
1. The utility model provides a valve prosthesis delivery system convenient to control, includes valve prosthesis, control handle, the inner tube and the sheath of being connected with control handle which characterized in that: the valve comprises an inner tube, an outer sheath, a control handle, an outer sheath control piece, an inner core tube control piece, an adjusting bending control piece and a linkage switching device, wherein the inner tube and the outer sheath are connected with each other, the inner core tube is arranged between the inner tube and the outer sheath, the connecting piece is fixedly connected with the inner core tube, the control handle is provided with the outer sheath control piece, the inner core tube control piece, the adjusting bending control piece and the linkage switching device, the outer sheath control piece controls the axial movement of the outer sheath, the inner core tube control piece controls the axial movement of the inner core tube, one end of the adjusting bending tube is connected with the adjusting bending control piece, the linkage switching device is arranged on the outer sheath control piece or the inner core tube control piece, and the linkage switching.
2. The facilitated manipulation valve prosthesis delivery system of claim 1, wherein: the connecting piece is fixedly connected with the inner pipe.
3. The facilitated manipulation valve prosthesis delivery system of claim 1, wherein: the linkage switching device comprises a linkage control key and a locking pin, and the inner core pipe control piece is provided with a slot.
4. The facilitated manipulation valve prosthesis delivery system of claim 1, wherein: the valve prosthesis conveying system further comprises a rotating rod, the rotating rod is fixedly connected with the inner core tube, a rotating knob is arranged on the control handle and connected with one end of the rotating rod, and the rotating knob can be operated to drive the rotating rod to rotate under the condition that the outer sheath keeps stationary, so that the inner core tube is further driven to rotate.
5. The facilitated manipulation valve prosthesis delivery system of claim 1, wherein: the valve prosthesis is provided with a limiting hole, the other end of the inner core tube is connected with the connecting piece, and the connecting piece is provided with a connecting hole.
6. The facilitated manipulation valve prosthesis delivery system of claim 5, wherein: the control device is characterized in that a plurality of control wires are arranged between the inner tube and the inner core tube, one ends of the control wires are connected with the control handle, and when the control device is preassembled, the control wires are inserted into the limiting holes to form detachable connection after the limiting holes penetrate through the connecting holes.
7. The facilitated manipulation valve prosthesis delivery system of claim 1, wherein: the outer sheath is a reducer pipe, and the pipe diameter of the distal end part of the outer sheath is larger than that of the proximal end part of the outer sheath.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022258182.6U CN212490267U (en) | 2020-10-12 | 2020-10-12 | Valve prosthesis conveying system convenient to control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022258182.6U CN212490267U (en) | 2020-10-12 | 2020-10-12 | Valve prosthesis conveying system convenient to control |
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| CN212490267U true CN212490267U (en) | 2021-02-09 |
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| CN202022258182.6U Active CN212490267U (en) | 2020-10-12 | 2020-10-12 | Valve prosthesis conveying system convenient to control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509291A (en) * | 2021-08-09 | 2021-10-19 | 宁波健世科技股份有限公司 | Valve presss from both sides and conveying system convenient to carry and dismantle |
| WO2022078229A1 (en) * | 2020-10-12 | 2022-04-21 | 宁波健世生物科技有限公司 | Easy-to-operate valve prothesis delivery system |
| WO2022206596A1 (en) * | 2021-03-29 | 2022-10-06 | 深圳市先健呼吸科技有限公司 | Puncture device |
| WO2022206491A1 (en) * | 2021-03-29 | 2022-10-06 | 深圳市先健呼吸科技有限公司 | Puncture system |
| WO2023280329A1 (en) * | 2021-10-12 | 2023-01-12 | 江苏臻亿医疗科技有限公司 | Implant delivery handle, and delivery system and operating method therefor |
| WO2023206646A1 (en) * | 2022-04-25 | 2023-11-02 | 金仕生物科技（常熟）有限公司 | Valve conveying apparatus |
-
2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022078229A1 (en) * | 2020-10-12 | 2022-04-21 | 宁波健世生物科技有限公司 | Easy-to-operate valve prothesis delivery system |
| WO2022206596A1 (en) * | 2021-03-29 | 2022-10-06 | 深圳市先健呼吸科技有限公司 | Puncture device |
| WO2022206491A1 (en) * | 2021-03-29 | 2022-10-06 | 深圳市先健呼吸科技有限公司 | Puncture system |
| CN113509291A (en) * | 2021-08-09 | 2021-10-19 | 宁波健世科技股份有限公司 | Valve presss from both sides and conveying system convenient to carry and dismantle |
| CN113509291B (en) * | 2021-08-09 | 2023-08-08 | 宁波健世科技股份有限公司 | Valve clamp conveying system convenient to convey and disassemble |
| WO2023280329A1 (en) * | 2021-10-12 | 2023-01-12 | 江苏臻亿医疗科技有限公司 | Implant delivery handle, and delivery system and operating method therefor |
| WO2023206646A1 (en) * | 2022-04-25 | 2023-11-02 | 金仕生物科技（常熟）有限公司 | Valve conveying apparatus |
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Address after: Building 5, area B, 777 Binhai Fourth Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province, 315336 Patentee after: Ningbo Jianshi Technology Co.,Ltd. Address before: Building 5, area B, 777 Binhai Fourth Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province, 315336 Patentee before: NINGBO JENSCARE BIOTECHNOLOGY Co.,Ltd. |