CN109700564A - Conveying device and system - Google Patents
Conveying device and system Download PDFInfo
- Publication number
- CN109700564A CN109700564A CN201811613310.5A CN201811613310A CN109700564A CN 109700564 A CN109700564 A CN 109700564A CN 201811613310 A CN201811613310 A CN 201811613310A CN 109700564 A CN109700564 A CN 109700564A
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- China
- Prior art keywords
- ejector sleeve
- communicating pipe
- conveying device
- seal wire
- proximal end
- Prior art date
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- 239000007788 liquid Substances 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 206010002329 Aneurysm Diseases 0.000 description 1
- 206010061660 Artery dissection Diseases 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 210000000702 aorta abdominal Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/97—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the outer sleeve being splittable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
- A61F2002/9665—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod with additional retaining means
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a kind of conveying device and systems, conveying device includes sheath tube assembly, and it is connected to the Handleset of sheath tube assembly proximal end, the sheath tube assembly includes inner core tube, the ejector sleeve covered outside the inner core tube, and cover outside the ejector sleeve and can the relatively described ejector sleeve axial movement sheath, the lumen channel worn for the inner core tube is provided in the ejector sleeve, the sheath tube assembly further includes the supporting element in the lumen channel, and the length of the supporting element is no longer than the length of the ejector sleeve.Beneficial effects of the present invention: by the way that supporting element is arranged in the lumen channel of ejector sleeve, can make the distal end of conveying device has enough flexibility, and make the proximal end of conveying device that there is enough support forces, required motive force when reducing intraluminal stent release, to improve the positioning accuracy of system entirety.
Description
Technical field
The present invention relates to interventional medical device field more particularly to a kind of conveying devices and system.
Background technique
In the recent decade, aorta tectorial membrane stent endovascular graft has been widely used for the aneurysm of chest, abdominal aorta
It is curative for effect, wound is small, recovery is fast, few intercurrent disease with the lesions such as artery dissection, it has also become the treatment method of a line.But
The positioning accuracy of the transportation system of the prior art is not high, and system can not accurately and rapidly discharge overlay film frame.Therefore it needs
Design a kind of reliable transportation system.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above-mentioned drawbacks in the prior art, providing a kind of conveying device
And system.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of conveying device, including sheath tube assembly are provided, and are connected to the Handleset of sheath tube assembly proximal end, institute
Stating sheath tube assembly includes inner core tube, the ejector sleeve covered outside the inner core tube, and covers outside the ejector sleeve and relatively described can push away
The sheath of pipe axial movement, the lumen channel worn for the inner core tube is provided in the ejector sleeve, and the sheath tube assembly is also wrapped
The supporting element being located in the lumen channel is included, the length of the supporting element is no longer than the length of the ejector sleeve.
In conveying device of the present invention, the Handleset includes communicating pipe, and the communicating pipe exchanges with described
Channel is connected.
In conveying device of the present invention, the Handleset further includes that the ejector sleeve being fixed on outside the ejector sleeve connects
Head is connected on the ejector sleeve connector, is provided on the side wall of the ejector sleeve and is connected with the interchange channel communicating pipe
Opening, be provided on the ejector sleeve connector for the opening and the mouth that exchanges of the communicating pipe, the interchange channel to be connected
Proximal end be sealed end.
In conveying device of the present invention, lead-over groove is provided in the ejector sleeve connector, the lead-over groove is located at institute
Opening is stated to exchange between mouth with described.
In conveying device of the present invention, it is tightly connected between the notch edges of the lead-over groove and the ejector sleeve.
In conveying device of the present invention, the Handleset further includes sliding handle, guide rod and rod coupling, institute
It states rod coupling fixation to be set in outside the ejector sleeve connector, the proximal end of the guide rod is fixedly connected with the rod coupling, described
Sliding handle is slidably connected on the guide rod, and the sliding handle is fixedly connected with the sheath.
In conveying device of the present invention, communicating pipe fixing piece, the connection are provided on the side wall of the guide rod
Pipe is worn from the communicating pipe fixing piece.
In conveying device of the present invention, the communicating pipe fixing piece is the proximally facing open slot of opening, described
Communicating pipe, the proximal end of fixing piece extended to the proximal end of the guide rod, and the communicating pipe side wall is abutted to the distal end of the fixing groove.
In conveying device of the present invention, communicating pipe locating piece, the communicating pipe are provided on the rod coupling
It is worn from the locating slot.
In conveying device of the present invention, the communicating pipe locating piece is open slot of the opening towards distal end, described
Communicating pipe, the distal end of locating piece extended to the distal end of the rod coupling, and the communicating pipe side wall is abutted to the communicating pipe and positioned
The proximal end of part.
In conveying device of the present invention, the sheath tube assembly further includes outer core pipe and is connected to outer core Guan Yuan
The fixation anchor at end, outer core pipe sleeve is between the inner core tube and the supporting element and the inner core tube can axially move relatively
It is dynamic, the fixation anchor limiting slot with the fixed anchor cooperation is provided on the end.
The present invention also provides a kind of transportation systems, including intraluminal stent, further include conveying device described above.
In conclusion implementing of the invention a kind of conveying device and system, have the advantages that the application in ejector sleeve
Lumen channel in supporting element is set, can make the distal end of conveying device that there is enough flexibility, and make the proximal end of conveying device
With enough support forces, required motive force when reducing intraluminal stent release, to improve the positioning accuracy of system entirety.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is a kind of schematic diagram of transportation system provided by the invention；
Fig. 2 is the schematic diagram of the intraluminal stent of transportation system shown in Fig. 1；
Fig. 3 is the schematic diagram of the conveying device of transportation system shown in Fig. 1；
Fig. 4 is the schematic diagram of the sheath tube assembly of conveying device shown in Fig. 3；
Fig. 5 is the cross-sectional view of the proximal end of sheath tube assembly shown in Fig. 3；
Fig. 6 is the schematic diagram of the first position-limit mechanism of the end of conveying device shown in Fig. 3；
Fig. 7 is the schematic diagram of second of position-limit mechanism of the end of conveying device shown in Fig. 3；
Fig. 8 is the explosive view of the joint assembly of conveying device shown in Fig. 3；
Fig. 9 is the sectional view of the ejector sleeve connector of joint assembly shown in Fig. 8；
Figure 10 be joint assembly shown in Fig. 8 ejector sleeve connector on be connected with the perspective view of communicating pipe；
Figure 11 is the schematic diagram of the ejector sleeve connector of joint assembly shown in Fig. 8, rod coupling and guide rod；
Figure 12 is the explosive view of guide rod shown in Figure 11；
Figure 13 is the sectional view of ejector sleeve connector shown in Figure 11, rod coupling and guide rod connection；
Figure 14 is the schematic diagram of rod coupling shown in Fig. 8 Yu seal wire connector；
Figure 15 is the schematic diagram that rod coupling shown in Figure 14 is connect with seal wire connector；
Figure 16 is the explosive view of seal wire connector shown in Fig. 8；
Figure 17 is the sectional view of the seal wire positioning mechanism of seal wire connector shown in Figure 16；
Figure 18 is the explosive view of seal wire positioning mechanism shown in Figure 17；
Figure 19 is the schematic diagram of the pulling buckle component of seal wire positioning mechanism shown in Figure 18.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "left", "right" and similar statement for illustrative purposes only, be not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
In intervention medical field, usually defining instrument away from the close one end of operator is proximal end, and away from operator, remote one end is
Distally.
Referring to Fig. 1, the present invention provides a kind of transportation system 500, including intraluminal stent 100, and with the lumen branch
The conveying device 300 that frame 100 cooperates.
Intraluminal stent 100 includes bare bracket 101, and the overlay film 102 being connected on bare bracket 101.Intraluminal stent 100 is
Hollow luminal structure, the lumen of intraluminal stent 100 constitute the channel of blood flow circulation.
Wherein, bare bracket 101 is made of the material with good biocompatibility, such as NiTi, stainless steel material.It covers
Film 102 is made of the high molecular material with good biocompatibility, such as PTFE, FEP, PET.Bare bracket 101 includes more
Wavy annular object 1011 is enclosed, every circle wavy annular object 1011 is including multiple wave crests, multiple troughs and multiple is separately connected adjacent wave
The connecting rod at peak and trough, multi-turn wavy annular object 1011 proximally arrive distal end and successively arrange, and preferably parallel interval is arranged.Wave
Shape ring 1011 is closed circle column structure, can have the same or similar waveform shape between multi-turn wavy annular object 1011
Shape, for example, wavy annular object 1011 can be Z-shaped wave, M shape wave, V-arrangement wave, sinusoidal pattern wave structure or it is other can radial compression be
The structure etc. of very small diameter.It is understood that the present embodiment does not limit the specific structure of wavy annular object 1011, corrugated gasket
The waveform of shape object 1011 can according to need setting, while waveform number and waveform height in every circle wavy annular object 1011
It can be set as needed.In practical preparation, titanium-nickel wire braiding can be used or the cutting sizing of NiTi pipe forms bare bracket 101, so
Overlay film 102 is fixed on bare bracket 101 by modes such as sutures or high-temperature pressurizing on 101 surface of bare bracket afterwards.
Referring to Fig. 2, intraluminal stent 100 includes tubular body 11, and half release dress being connected on tubular body 11
Set 200.Half release device 200 includes limit seal wire 21, and is flexibly connected with limit seal wire 21, carries out week to tubular body 11
To the constraint unit 20 of constraint.After intraluminal stent 100 is discharged from conveying device 300, in the constraint of half release device 200
Under, intraluminal stent 100 is in half release conditions, and intraluminal stent 100 is not bonded with vascular wall at this time, and operator still can be to lumen branch
The axial and circumferential position of frame 100 is adjusted, it is to be positioned it is accurate after, then limit seal wire 21 separated with unit 20 is fettered, made
The constraint release of half release device 200, so that it is adherent that intraluminal stent 100 is unfolded.
At least one branch 10 being connected to the tubular body 11 is connected on tubular body 11, which can be interior
Branch, or outer branch.Preset seal wire 15 is provided at least one branch 10, preset seal wire 15 is passed through out of branch 10
It wears.After conveying device 300 is withdrawn from vitro, preset seal wire 15 is remained in branch 10, (can not be shown by seal wire catching device at this time
The preset seal wire 15 is arrested from the distal end 11a of tubular body 11 out), one end of preset seal wire 15 is caught in vitro, utilization is preset
Seal wire 15 is established from vitro to the blood vessel access of branch 10.Then by this channel, make an end cap of extending bracket (not shown)
It is connected in branch 10, is located at the other end of extending bracket in branch vessel.In the embodiment shown in Figure 2, branch 10 includes
Four, respectively Liang Genei branch, Liang Gewai branch are respectively arranged with preset seal wire 15 in Liang Genei branch.
Referring to Fig. 3, conveying device 300 includes sheath tube assembly 31, end 32 and Handleset 33.End 32 is connected to sheath
The distal end of tube assembly 31, end 32 are hollow structure, and inner cavity is connected with the lumen of sheath tube assembly 31, logical together as seal wire
Road.Handleset 33 is connected to the proximal end of sheath tube assembly 31, and the axial movement of each component for controlling sheath tube assembly 31 makes pipe
Chamber bracket 100 is discharged from conveying device 300.
Referring to Fig. 4, sheath tube assembly 31 includes inner core tube 311, outer core pipe 312, ejector sleeve 313, sheath 314 and fixed anchor
315。
Wherein, end 32 is connected to the distal end of inner core tube 311, and the lumen of inner core tube 311 is connected with the inner cavity of end 32,
Together as silk guide passage.312 sets of outer core pipe it is outer in inner core tube 311 and can opposite inner core tube 311 move axially, fixed anchor 315
It is connected to the distal end of outer core pipe 312, and outer core pipe 312 is followed to move axially together, fixed anchor limiting slot is provided on end 32
322, fixed anchor 315 is separably attached in fixed anchor limiting slot 322.313 sets of ejector sleeve outside outer core pipe 312 and positioned at outer
Between core pipe 312 and sheath 314,314 sets of sheath it is outer in ejector sleeve 313 and can opposite ejector sleeve 313 move axially, Handleset 33 connects
It connects in the proximal end of sheath 314.When 314 sets of sheath when outer core pipe 312 is outer, a ring is formed between sheath 314 and outer core pipe 312
Shape cavity, compressed intraluminal stent 100 are contained in the annular housing.Referring to Fig. 1,100 one end of intraluminal stent
Bare bracket 101 is hooked on fixed anchor 315, and the other end of intraluminal stent 100 offsets with the distal end end face of ejector sleeve 313, makes lumen
Bracket 100 is compressed axially between fixed anchor 315 and ejector sleeve 313.It is constrained in sheath 314 since intraluminal stent 100 is whole,
Before reaching lesion locations, intraluminal stent 100 and conveying device 300 can keep opposing stationary state, when being mounted with lumen branch
After the conveying device 300 of frame 100 reaches lesion locations, intraluminal stent 100 is discharged.
When operation, firstly, sheath 314 is dropped back using Handleset 33, make intraluminal stent 100 from conveying device 300
Release, at this time under the constraint of half release device 200, intraluminal stent 100 is in half release conditions.Secondly, to intraluminal stent 100
Axial and circumferential position be adjusted, it is to be positioned it is accurate after, then limit seal wire 21 separated with unit 20 is fettered, makes half release
The constraint release of device 200, so that it is adherent that intraluminal stent 100 is unfolded.It then, will be after the opposite inner core tube 311 of outer core pipe 312
It moves, fixed anchor 315 follows outer core pipe 312 to move back together, and gradually separates with fixed anchor limiting slot 322, thus by bare bracket 101
Constraint release, intraluminal stent 100 is fully deployed at this time.Finally, conveying device 300 is withdrawn from vitro, and arrested by seal wire
Device (not shown) catches one end of the preset seal wire 15 in branch 10 in vitro, is established using preset seal wire 15 from vitro to branch
10 blood vessel access is socketed extending bracket in branch 10.
During actual operation, the distal portions of sheath tube assembly 31 enter human vas, and distal end needs enough
Flexibility, and the proximal end of sheath tube assembly 31 needs to provide enough support forces, required promotion when reducing intraluminal stent release
Power.Therefore referring to Fig. 5, sheath tube assembly 31 further includes supporting element 316, supporting element 316 is located in ejector sleeve 313, and supporting element 316
Length be no longer than the length of ejector sleeve 313, which can be the harder pipe fitting of materials such as metal tube.Shown in Fig. 5
In embodiment, supporting element 316 is hollow tubular structure, is fixed on the inner wall of ejector sleeve 313, and the proximal end of supporting element 316 extends
To the proximal end of ejector sleeve 313, the distal end of supporting element 316 extends to the distal end of ejector sleeve 313, supporting element 316 can be bonded by glue or
The modes such as hot melt are fixed in ejector sleeve 313.It is understood that the present embodiment does not limit the specific structure of supporting element 316, example
Such as, in other embodiments, supporting element 316 is the solid metalwork in fine strip shape, is fixed on 313 inner wall of ejector sleeve.
Perforative lumen channel 3131 respectively in axial direction and silk guide passage 3132 are provided in ejector sleeve 313.Supporting element 316 is solid
It is scheduled on the inner wall in lumen channel 3131, outer core pipe 312 is worn out of lumen channel 3131, is limited seal wire 21 or/and preset is led
Silk 15 is worn from silk guide passage 3132.In the embodiment shown in fig. 5, silk guide passage 3132 includes three, and three seal wires are logical
Two in road 3132 wear for preset seal wire 15, another wears for limit seal wire 21.
Wherein, limit seal wire 21 and/or preset seal wire 15 can it is smaller for surface roughness and with human-body biological compatibility
Preferable wire guide, such as titanium-nickel wire.In order not to increase the overall profile size of transportation system, while avoiding limit seal wire 21
It is bent with preset 15 stress of seal wire, the string diameter of limit seal wire 21 and preset seal wire 15 is 0.2mm~0.6mm.
In order to avoid limit seal wire 21 and the distal end of preset seal wire 15 cause to damage to blood vessel, limit seal wire 21 is led with preset
The proximal segment of silk 15 is generally relatively soft compliant section.But since the proximal segment of preset seal wire 15 is relatively soft, in transmission process
In, the proximal segment of preset seal wire 15 is easy to happen displacement, if preset seal wire 15 passes through bare bracket below the wave crest of bare bracket 101
101, after bare bracket 101 is unfolded adherent, preset seal wire 15 can be made to be extruded between bare bracket 101 and vascular wall, led to not
It is socketed extending bracket.
Referring to Fig. 6, limited position mechanism 321 is arranged on end 32, the front end for limiting seal wire 21 and/or preset seal wire 15 can
It is separately attached to the position-limit mechanism 321, under external force, seal wire and position-limit mechanism 321 are separable.When assembling, make to limit
Seal wire 21 and/or preset seal wire 15 are pierced by from the front end of intraluminal stent 100, and make to limit seal wire 21 and/or preset seal wire 15
Front end is connected to the position-limit mechanism 321, it is ensured that during transportation, the front end of limit seal wire 21 and/or preset seal wire 15 is always
It is connected on the position-limit mechanism 321.In the embodiment shown in fig. 6, position-limit mechanism 321 is limiting slot, and the limiting slot is along end
32 proximal end for axially extending to end 32, limit seal wire 21 and/or preset seal wire 15 be housed in the limiting slot and with limit
Slot interference fit, under external force, seal wire and limiting slot are separable.It is understood that the present embodiment does not limit limit
The specific structure of slot, for example, in the embodiment shown in fig. 7, limiting slot is substantially U-shaped slot, limits seal wire 21 and/or preset leads
The front end of silk 15 extends to the bending section of U-lag, and seal wire is avoided to fall off from limiting slot, limits seal wire 21 and/or preset seal wire
15 can also be interference fitted with U-lag, further avoid seal wire and fall off from limiting slot.
It will also be appreciated that the present embodiment does not limit the specific structure of position-limit mechanism 321, as long as ensuring to limit seal wire
21 and/or preset seal wire 15 can be bound on position-limit mechanism 321, and seal wire and position-limit mechanism 321 can be made under external force
Disengaging.For example, in other embodiments, position-limit mechanism 321 is the clamping device being made of two elastic slices, two elastic slices are set
It sets on end, seal wire is clamped between two elastic slices, under external force, is detached from seal wire from two elastic slices.
Referring to Fig. 3, Handleset 33 includes fixed handle 331, sliding handle 332, guide rod 333, latch assembly
334, communicating pipe 335 and joint assembly 336.
Wherein, joint assembly 336 is connected to the proximal end of sheath tube assembly 31, be connected on joint assembly 336 communicating pipe 335,
And it is connected with the inner cavity of sheath tube assembly 31.The proximal end of guide rod 333 is fixedly connected with joint assembly 336, and fixed handle 331 is fixed
In the distal end of guide rod 333.Sliding handle 332 is slidably connected on guide rod 333, sliding handle 332 and the fixed company of sheath 314
It connects, sheath 314 follows sliding handle 332 to be axially moveable together.Latch assembly 334 respectively with sliding handle 332 and guide rod 333
Connection, for controlling between sliding handle 332 and guide rod 333 along axial relative movement.When latch assembly 334 is in locking shape
When state, sliding handle 332 can not be relatively moved with guide rod 333, when latch assembly 334 is in non-locking state, sliding handle
332 can relatively move with guide rod 333.
In the embodiment shown in fig. 3, guide rod 333 is slidably connect with sliding handle 332 by helicitic texture.It can be with
Understand, the present embodiment does not limit the concrete mode being slidably connected between guide rod 333 and sliding handle 332, as long as can make two
Person is opposite to be slided.For example, in other embodiments, sliding rail is provided on guide rod 333, being provided on sliding handle 332 can
The sliding block of sliding being connected in the sliding rail.
Referring to Fig. 8, joint assembly includes ejector sleeve connector 34, rod coupling 35 and seal wire connector 36.Rod coupling 35 connects
It connects in the proximal end of guide rod 333, ejector sleeve connector 34 is fixed in pipe joint 35, and seal wire connector 36 is fixed on outside rod coupling 35.
Ejector sleeve connector 34 is fixed on outside ejector sleeve 313, and the limit seal wire and preset seal wire in ejector sleeve 313 pass through seal wire connector 3352 respectively and prolong
It extends to outside Handleset 33.
Referring to Fig. 9, axially distributed interchange channel 3133 is additionally provided in ejector sleeve 313, interchange channel 3133 and pipe
Chamber channel 3131 and silk guide passage 3132 are isolated and are connected with the external world.The distal end of interchange channel 3133 extends to ejector sleeve 313
Distal end, be provided with the opening 3134 for making interchange channel 3133 be in communication with the outside on ejector sleeve 313, operator can pass through interchange channel
3133 to the internal injection infusions such as liquid or gas, to guarantee draining or the degassing function of transportation system.Due to interchange channel
3133 is mutually isolated with lumen channel 3131, then interchange channel 3133 will not be mutual with the supporting element 316 in lumen channel 3131
It influences, while draining or the degassing function for guaranteeing transportation system, also can ensure that the proximal end of conveying device has enough branch
Support force.
The generally hollow structure of ejector sleeve connector 34, is fixed on outside ejector sleeve 313, is provided with and is open on ejector sleeve connector 34
The 3134 exchange mouths 341 being connected.Please refer to Fig. 9 and Figure 10, one end of communicating pipe 335 be connected to ejector sleeve connector 34 and with friendship
It changes mouth 341 to be conducted, the other end extends to outside joint assembly.Operator can be infused by communicating pipe 335 into interchange channel 3133
Enter the infusions such as liquid or gas.
In the embodiment shown in fig. 9, ejector sleeve connector 34 is set in outside the proximal end of ejector sleeve 313, and interchange channel 3133 is along axis
To the both ends for running through ejector sleeve 313, opening 3134 is arranged on the side wall of ejector sleeve 313, and the proximal end of interchange channel 3133 is filled with close
Sealing 343 avoids infusion from flowing out from the proximal end of ejector sleeve 313, which can be glue or other fillers.Ejector sleeve
The annular convex platform 345 for being provided on connector 34 and exchanging the connection of mouth 341, is connected communicating pipe 335 with 345 grafting of annular convex platform.
For the entrance interchange channel 3133 for keeping infusion gentle, the inner wall of ejector sleeve connector 34 is provided with lead-over groove 342, lead-over groove 342
Positioned at opening 3134 with exchange between mouth 341.In order to avoid infusion flows into the gap between ejector sleeve connector 34 and ejector sleeve 313
It is interior, between the notch edges and ejector sleeve 313 of lead-over groove 342 be filled with sealing element 343, the sealing element 343 can for glue or its
His filler.In order to facilitate processing, the proximal end of lead-over groove 342 extends to the proximal end of ejector sleeve connector 34, the proximal end of ejector sleeve connector 34
It is arranged with briquetting 344, briquetting 344 is set between lead-over groove 342 and ejector sleeve 313 for sealing lead-over groove 342 and ejector sleeve 313,
It is flowed out to avoid infusion from the proximal end of lead-over groove 342.
It is understood that the present embodiment does not limit specific location of the opening 3134 on ejector sleeve 313, as long as can make to hand over
It changes channel 3133 and is conducted communicating pipe 335.For example, in other embodiments, opening 3134 may be located on ejector sleeve 313
Proximal face on, communicating pipe 335 can directly plug to the opening 3134 at this time.
Figure 11 is please referred to, ejector sleeve connector 34 is set in the proximal end of guide rod 333, and connection is provided on the side wall of guide rod 333
Pipe fixing piece 3331, communicating pipe 335 pass through communicating pipe fixing piece 3331 and connect with ejector sleeve connector 34.Implement shown in Figure 12
In example, the generally cylindrical structure of guide rod 333, the cylindrical structure is made of two semicircular connecting cylinder splicings, two connecting cylinders
It can be stitched together by the modes such as being bonded or snapping connection.Communicating pipe, fixing piece 3331 was U-shaped groove structure, was provided with two
The junction of a connecting cylinder, communicating pipe the proximal end of fixing piece 3331 extend to the proximal end of guide rod 333, when ejector sleeve connector 34 is assemblied in
When in guide rod 333, the side wall of communicating pipe 335 is abutted to the distal end of communicating pipe fixing piece 3331.
It is understood that the present embodiment does not limit the concrete shape of communicating pipe fixing piece 3331, as long as can make to be connected to
Pipe 335 passes through.For example, in other embodiments, communicating pipe fixing piece 3331 can also be borehole structure, communicating pipe 335
It is connected across communicating pipe fixing piece 3331 with the mouth 341 that exchanges on ejector sleeve connector 34.It will also be appreciated that the present embodiment is simultaneously
The specific structure of guide rod 333 is not limited, can also be spliced by multiple connecting cylinders and be formed.
Referring to Figure 11, the generally hollow structure of rod coupling 35 is set in outside guide rod 333.Rod coupling 35
On be provided with communicating pipe locating piece 351, worn in communicating pipe 335 from communicating pipe locating piece 351.
In the embodiment shown in fig. 11, communicating pipe locating piece 351 is U-shaped groove structure, and distal end extends to rod coupling
35 distal end, when rod coupling 35 is assemblied on guide rod 333, the side wall of communicating pipe 335 is abutted to communicating pipe locating piece 351
Proximal end.It is understood that the present embodiment does not limit the concrete shape of communicating pipe locating piece 351, as long as can make communicating pipe 335
It passes through.For example, in other embodiments, communicating pipe locating piece 351 can also be borehole structure.
It is understood that, if communicating pipe 335 is displaced, being pushed away since communicating pipe 335 is connected on ejector sleeve connector 34
Pipe fitting 34 and the ejector sleeve 313 being connected on ejector sleeve connector 34 can shift together, be unfavorable for the accurate positionin of intraluminal stent.This reality
Example is applied by abutting communicating pipe 335 to the proximal end of communicating pipe locating piece 351, and is made to abut communicating pipe 335 to fixing communicating pipe
The distal end of part 3331 can carry out axially position to communicating pipe 335, avoid communicating pipe 335 from occurring axially displaced.Further,
It is circumferentially displaced in order to avoid communicating pipe 335, communicating pipe the fixing piece 3331 or width circumferentially of communicating pipe locating piece 351 and position
The outer diameter of communicating pipe 335 therebetween is identical.
Since rod coupling 35 is set in outside guide rod 333, in order to avoid opposite move occurs for rod coupling 35 and guide rod 333
It is dynamic, the first location structure (not shown) is provided between rod coupling 35 and guide rod 333.First location structure may include setting
The card slot on the inner wall of rod coupling 35 is set, and the buckle being arranged on the outer wall of guide rod 333, when rod coupling 35 is arranged
When guide rod 333 is outer, buckle is fastened and connected with card slot, avoids being displaced between rod coupling 35 and guide rod 333.It is understood that
, the present embodiment does not limit the specific structure of first location structure, as long as being avoided that rod coupling 35 and guide rod 333 are sent out
Raw relative movement.
Please refer to Figure 13, the inner wall of rod coupling 35 is convex to be equipped with annular chuck 352, and ejector sleeve 313 is from ejector sleeve connector 34, annular
It is worn in chuck 352, and extends to proximal end or its near proximal ends of rod coupling 35.When rod coupling 35 is set in ejector sleeve connector
34 it is outer when, the proximal end of ejector sleeve connector 34 is abutted to the annular chuck 352, which can not only limit ejector sleeve connector
34 axial movement can also support ejector sleeve 313.
Figure 14, Figure 15 and Figure 16 are please referred to, the generally hollow structure of seal wire connector 36 is set in outside rod coupling 35,
Ejector sleeve 313 is connected with the inner cavity of seal wire connector 36.Multiple perforation being connected with its inner cavity are provided on seal wire connector 36
365, the seal wire (preset seal wire 15 or limit seal wire 21) and outer core pipe 312 stretched out from the proximal end of ejector sleeve 313 passes through correspondence respectively
Perforation 365 extend to outside seal wire connector 36.
Seal wire and outer core pipe 312 are shifted in order to facilitate the operation of personnel, seal wire connector 36 is that inner surface is provided with and leads
Silk limiting slot 361 and core pipe limiting slot 362, the seal wire stretched out from the proximal end of ejector sleeve 313 is by seal wire limiting slot 361 from corresponding
It is pierced by perforation 365, the outer core pipe 312 stretched out from the proximal end of ejector sleeve 313 passes through core pipe limiting slot 362 from corresponding perforation 365
In be pierced by.
In the embodiment shown in Figure 14, Figure 15 and Figure 16, the proximal end of ejector sleeve 313 is extended in seal wire connector 36, seal wire
A core pipe limiting slot 362 and two seal wire limiting slots 361 are provided in connector 36, two preset seal wires 15 are installed respectively
In corresponding seal wire limiting slot 361.Axial direction distribution of the core pipe limiting slot 362 along outer core pipe 312, two seal wire limiting slots 361
It is generally curved, set up separately in the two sides of inner core tube limiting slot 362.The proximal end of seal wire limiting slot 361 is provided with seal wire locking dress
367 are set, when seal wire locking device 367 is locked, seal wire is fixed in seal wire connector 36, when seal wire locking device 367 unlocks,
Seal wire can be mobile relative to seal wire connector 36.
It is understood that the vertical central axis of line and ejector sleeve 313 between the proximal end and distal end of seal wire limiting slot 361
Between angle it is bigger, the push resistance of seal wire is bigger, is unfavorable for promoting and pulling out seal wire, but above-mentioned angle is smaller, seal wire
The easier other component with 36 proximal lateral of seal wire connector interferes.Therefore in the present embodiment, when seal wire connector 36 is set in
When rod coupling 35 is outer, line between the proximal end and distal end of seal wire limiting slot 361 and between the vertical central axis of ejector sleeve 313
Angle is 20 °~40 °.
It will also be appreciated that since the hardness of seal wire is lower, if the proximal end of ejector sleeve 313 is remote with seal wire limiting slot 361
There is gap between end, then seal wire is easy to appear bending in the gap location during pushing ahead, and influences the propulsion of seal wire.
Therefore in the present embodiment, when seal wire connector 36 be set in rod coupling 35 it is outer when, silk guide passage 3132 in ejector sleeve 313 it is close
The distal end coaxial line at end and seal wire limiting slot 361, the proximal face of ejector sleeve 313 are located at the distal end end face of seal wire limiting slot 361
In same plane.
Further, the second location structure is provided between seal wire connector 36 and rod coupling 35, to avoid seal wire connector
36 relatively move with rod coupling 35.
Second location structure includes the first locating slot 363 being arranged on the inner wall of seal wire connector 36, and setting is being led
The first positioning bar 353 on the outer wall of knock-off joint 35, circumferentially distributed.When seal wire connector 36 be set in rod coupling 35 it is outer when,
First positioning bar 353 is held in the first locating slot 363, and seal wire connector 36 is avoided to move axially with rod coupling 35.The
Two location structures further include be arranged on the inner wall of seal wire connector 36, the second axially distributed positioning bar 364, and setting exist
The second locating slot 354 on rod coupling 35, the second locating slot 354 are the notch being provided on the first positioning bar 353.Work as seal wire
Connector 36 be set in rod coupling 35 it is outer when, the second positioning bar 364 is held in the second locating slot 354, avoids seal wire connector 36
Circumferential movement occurs with rod coupling 35.When assembling, the second positioning bar 364 need to be only inserted into the second locating slot 354, until the
One positioning bar 353 is held in the first locating slot 363, and the axial and circumferential that seal wire connector 36 and rod coupling 35 can be realized are fixed
Position, it is easy to operate, it is easy to process.It will be appreciated that the present embodiment does not limit the specific structure of the second location structure, as long as energy
Seal wire connector 36 and rod coupling 35 is avoided to relatively move.
Figure 16, Figure 17 and Figure 18 are please referred to, seal wire positioning mechanism 37 is additionally provided on seal wire connector 36, from seal wire connector 36
Perforation 365 in the seal wire (limit seal wire 21 or preset seal wire 15) that is pierced by be fixedly connected with seal wire positioning mechanism 37, seal wire is fixed
Position mechanism 37 is fixed on seal wire on seal wire connector 36, and seal wire is avoided to be displaced during transportation.
In the embodiment shown in Figure 18, the outer surface of seal wire connector 36 is provided with holding tank 366, seal wire positioning mechanism 37
It is mounted in holding tank 366.Seal wire positioning mechanism 37 includes pulling buckle component 371, and to the drawing that pulling buckle component 371 is limited
Positioning component 372 is detained, seal wire is fixed on pulling buckle component 371, and pulling buckle component 371 is removably attachable to pulling buckle positioning component
On 372.
Pulling buckle component 371 includes pulling buckle main body 3711, and the pull ring 3712 being connected in pulling buckle main body 3711.Limit seal wire
21 are fixedly connected after being pierced by perforation 365 with pulling buckle main body 3711, and the finger of operator can protrude into pull ring 3712, by pulling buckle
Component 371 is pulled out from pulling buckle positioning component 372.
Figure 18 and Figure 19 are please referred to, pulling buckle main body 3711 includes the first buckling parts 3713, interconnecting piece 3714 and the second fastening
Portion 3715.First buckling parts 3713 is tabular, is roughly parallel to the slot bottom plane of holding tank 366.The one of interconnecting piece 3714
End is connected on the first buckling parts 3713, and the other end extends towards the side far from holding tank 366, and pull ring 3713 is fixed on interconnecting piece
3714 other end makes the slot bottom of pull ring 3713 and holding tank have certain distance, facilitates operator that finger is protruded into pull ring
In 3713.The other end for being fixed on interconnecting piece 3714 of second buckling parts 3715, and extend towards the side close to holding tank 366,
Second buckling parts 3715 is tabular, is substantially extended along the slot bottom direction perpendicular to holding tank 366, on the second buckling parts 3715
It is provided with notch.
Pulling buckle positioning component 372 includes the first locating piece 3721 and the second locating piece 3722.First locating piece 3721 is substantially
It for tabular, is fixed on the side wall of holding tank 366, is provided with buckle structure on the second locating piece 3722, is fixed on appearance
Receive the slot bottom of slot 366.When pulling buckle component 371 is mounted in holding tank 366, the first buckling parts 3713 is located at the first locating piece
3721 lower section is simultaneously abutted to the side wall of holding tank 366, on the buckle structure of the second locating piece 3722 and the second buckling parts 3715
Notch be fastened and connected, so that pulling buckle component 371 be made to be limited on seal wire connector 36.
Further, pulling buckle component 371 further includes the fixing groove 374 being connected in pulling buckle main body 3711, and is located at fixation
Fixing piece 375 in slot 374.When assembly, limit seal wire 21 is fixed on fixing piece 375, then by the assembly of fixing piece 375 solid
Determine to be fixedly mounted on fixing piece 375 in fixing groove 374 in slot 374.Since the string diameter of seal wire is smaller, it has not been convenient to will directly lead
Silk is fixed on pulling buckle component 371, by the structure of above-mentioned fixing groove and fixing piece, can increase seal wire and pulling buckle component 371
Connective stability.
Specifically, the substantially cylindrical body mechanism of fixing piece 375, it is provided on the side wall of fixing piece 375 and extends radially through
It is logical to be provided with the second guiding being connected with the first guiding channel 3751 on the side wall of fixing groove 374 for first guiding channel 3751
Road 3741.When assembly, so that the proximal end of seal wire is passed through the first guiding channel 3751 and the second guiding channel 3741, seal wire is fixed on
On fixing piece 375.
It is understood that in other embodiments, holding tank 366 can also be not provided on seal wire connector 36, seal wire is fixed
Position mechanism 37 is fit directly into the outer wall of seal wire connector 36.It will also be appreciated that the present embodiment does not limit seal wire localization machine
The specific structure of structure 37, in other embodiments, seal wire positioning mechanism 37 can also be other structures, as long as can carry out to seal wire
Limit.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (12)
1. a kind of conveying device, including sheath tube assembly, and it is connected to the Handleset of sheath tube assembly proximal end, the sheath
Component includes inner core tube, the ejector sleeve covered outside the inner core tube, and cover outside the ejector sleeve and can the relatively described ejector sleeve it is axial
Mobile sheath is provided with the lumen channel worn for the inner core tube in the ejector sleeve, which is characterized in that the sheath tube assembly
It further include the supporting element in the lumen channel, the length of the supporting element is no longer than the length of the ejector sleeve.
2. conveying device according to claim 1, which is characterized in that be additionally provided in the ejector sleeve and be separated by with lumen channel
From and the interchange channel that is in communication with the outside, the distal end of the interchange channel extends to the distal end of the ejector sleeve, the Handleset
Including communicating pipe, the communicating pipe is connected with the interchange channel.
3. conveying device according to claim 2, which is characterized in that the Handleset further includes being fixed on the ejector sleeve
Outer ejector sleeve connector is connected on the ejector sleeve connector, is provided on the side wall of the ejector sleeve and exchanges with described the communicating pipe
The opening that channel is connected is provided on the ejector sleeve connector for the opening and the mouth that exchanges of the communicating pipe, institute to be connected
The proximal end for stating interchange channel is sealed end.
4. conveying device according to claim 3, which is characterized in that it is provided with lead-over groove in the ejector sleeve connector, it is described
Lead-over groove is located at the opening and exchanges between mouth with described.
5. conveying device according to claim 4, which is characterized in that the notch edges of the lead-over groove and the ejector sleeve it
Between be tightly connected.
6. conveying device according to claim 3, which is characterized in that the Handleset further includes sliding handle, guide rod
And rod coupling, the rod coupling are installed in outside the ejector sleeve connector, the proximal end of the guide rod is fixed with the rod coupling
Connection, the sliding handle are slidably connected on the guide rod, and the sliding handle is fixedly connected with the sheath.
7. conveying device according to claim 6, which is characterized in that be provided with and fix on the side wall of the guide rod communicating pipe
Part, the communicating pipe wear from the communicating pipe fixing piece.
8. conveying device according to claim 7, which is characterized in that the communicating pipe fixing piece is that opening is proximally facing
Open slot, the proximal end of the communicating pipe fixing piece extend to the proximal end of the guide rod, and the communicating pipe side wall is abutted to described solid
Determine the distal end of slot.
9. conveying device according to claim 6, which is characterized in that be provided with communicating pipe positioning on the rod coupling
Part, the communicating pipe wear from the communicating pipe locating piece.
10. conveying device according to claim 9, which is characterized in that the communicating pipe locating piece is opening towards distally
Open slot, the distal end of the communicating pipe locating piece extends to the distal end of the rod coupling, the communicating pipe side wall abut to
The proximal end of the locating slot.
11. conveying device according to claim 1, which is characterized in that the sheath tube assembly further includes outer core pipe and connection
Fixation anchor in outer core pipe distal end, outer core pipe sleeve is between the inner core tube and the supporting element and can opposite institute
Inner core tube axial movement is stated, the fixation anchor limiting slot with the fixed anchor cooperation is provided on the end.
12. a kind of transportation system, including intraluminal stent, which is characterized in that further include defeated as described in claim 1~12 is any
Send device.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210367158.7A CN115337132A (en) | 2018-12-27 | 2018-12-27 | Conveying Devices and Systems |
| CN201811613310.5A CN109700564B (en) | 2018-12-27 | 2018-12-27 | Conveying device and system |
| PCT/CN2019/114680 WO2020134538A1 (en) | 2018-12-27 | 2019-10-31 | Delivery apparatus and system |
| US17/418,637 US11850174B2 (en) | 2018-12-27 | 2019-10-31 | Delivery apparatus and system |
| EP19905560.9A EP3903731A4 (en) | 2018-12-27 | 2019-10-31 | Delivery apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613310.5A CN109700564B (en) | 2018-12-27 | 2018-12-27 | Conveying device and system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210367158.7A Division CN115337132A (en) | 2018-12-27 | 2018-12-27 | Conveying Devices and Systems |
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| CN109700564A true CN109700564A (en) | 2019-05-03 |
| CN109700564B CN109700564B (en) | 2022-04-22 |
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| CN201811613310.5A Active CN109700564B (en) | 2018-12-27 | 2018-12-27 | Conveying device and system |
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| CN110934618A (en) * | 2019-12-17 | 2020-03-31 | 宁波迪创医疗科技有限公司 | A controlled release system |
| CN110974502A (en) * | 2019-11-14 | 2020-04-10 | 先健科技(深圳)有限公司 | Conveyor and implant conveying system |
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| CN118161320A (en) * | 2022-12-02 | 2024-06-11 | 先健科技(深圳)有限公司 | Conveying system |
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| US11850174B2 (en) | 2018-12-27 | 2023-12-26 | Lifetech Scientific (Shenzhen) Co, Ltd. | Delivery apparatus and system |
| CN110974502A (en) * | 2019-11-14 | 2020-04-10 | 先健科技(深圳)有限公司 | Conveyor and implant conveying system |
| CN110934618A (en) * | 2019-12-17 | 2020-03-31 | 宁波迪创医疗科技有限公司 | A controlled release system |
| WO2022142800A1 (en) * | 2020-12-29 | 2022-07-07 | 上海微创心脉医疗科技(集团)股份有限公司 | Covered stent system |
| CN118217045A (en) * | 2024-05-22 | 2024-06-21 | 北京心祐医疗科技有限公司 | Stent graft, stent graft conveyor and stent graft conveying system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109700564B (en) | 2022-04-22 |
| CN115337132A (en) | 2022-11-15 |
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