CN106333774B - Lumen bracket conveying system - Google Patents
Lumen bracket conveying system Download PDFInfo
- Publication number
- CN106333774B CN106333774B CN201510413817.6A CN201510413817A CN106333774B CN 106333774 B CN106333774 B CN 106333774B CN 201510413817 A CN201510413817 A CN 201510413817A CN 106333774 B CN106333774 B CN 106333774B
- Authority
- CN
- China
- Prior art keywords
- push rod
- intraluminal stent
- sheath
- distal end
- anchor portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to a kind of lumen bracket conveying systems, for being fed from expansion tube cavity bracket comprising an outer sheath, a push rod and a sheath core；The push rod is arranged in inside the outer sheath, and the sheath core passes through the push rod and the distal end of the sheath core is stretched out from the outer sheath distal end；The push rod distal end is equipped with the first anchor portion, and the sheath core distal end is equipped with the second anchor portion；During the intraluminal stent is installed on the transportation system, first anchor portion is connected with the first end of the intraluminal stent, for only providing axial force to the intraluminal stent, second anchor portion is connected with the second end of the intraluminal stent, so that the intraluminal stent is located in the cavity between the outer sheath and the sheath core.Implement lumen bracket conveying system of the invention, can facilitate and bracket is encased in outer sheath, while preventing the defect of intraluminal stent axial direction cripetura in loading procedure.
Description
Technical field
The invention belongs to medical instruments field more particularly to a kind of lumen bracket conveying systems.
Background technique
Currently, using stent in the treatment or alleviating the technology for becoming disease in body lumen by increasingly wider in interventional medical arts
It is applied to clinic generally.According to the use scope of product, endoluminal stent product currently on the market is broadly divided into two major classes: blood
Tubing bracket (for example, aortic stents, peripheral vascular stents etc.) and non-vascular class bracket are (for example, biliary tract rack, esophagus branch
Frame, intestinal stent etc.).Compressible bracket is usually used in intraluminal stent, and compresses it into a hollow conduit, passes through
The puncture orifice (for example, arteriopuncture, venipuncture etc.) or human organ of body lumen are open (for example, mouth, nose etc.), in number
The bracket being compressed in conduit is sent to diseased region, then by certain under the monitoring of image (such as CT, ultrasound, endoscope)
Mode by bracket discharge be unfolded, by the convergent force of the radial support power and body lumen itself of bracket itself, bracket is consolidated
It is scheduled on specific position, reach treatment or slows down illness purpose.
For self-expandable stent, skeleton part is usually to be made of Nitinol, after certain heat treatment process,
Bracket itself has shape memory function, once that is, environment temperature is restored to more than its phase transition temperature, bracket, which has, restores itself
The ability of shape.It is usually to use piecewise fashion of extrusion, in this course, bracket being arranged intraluminal stent into outer sheath
Radially contract in the same size with delivery sheath inner cavity, but its axial length cannot be substantially change, and be likely to occur after otherwise discharging
Bracket cripetura leads to interior leakage in turn, and will cause bracket location difficulty in release.And the intraluminal stent of overlay film is being retracted to
During delivery sheath, due to the presence of overlay film on intraluminal stent, so that the resistance of overlay film and delivery sheath inner wall increases, simultaneously
The difficulty for assembling intraluminal stent increases.If the intraluminal stent of overlay film is filled in conveying sheath by force in the case where resistance is bigger than normal
Pipe then the intraluminal stent of overlay film will appear certain axial shrinkage, and then occurs short after causing the intraluminal stent of overlay film to discharge
The bad phenomenons such as leakage in contracting.Meanwhile when also will appear release intraluminal stent the phenomenon that position inaccurate.
Summary of the invention
The technical problem to be solved in the present invention is that a kind of lumen bracket conveying system is provided, to solve the pipe of the prior art
Chamber stent delivery system loads the defect that self-expanding intraluminal stent is easy to appear intraluminal stent cripetura.
The technical solution adopted by the present invention to solve the technical problems is:
The present invention provides a kind of lumen bracket conveying system, for being fed from expansion tube cavity bracket comprising an epitheca
Pipe, a push rod, and a sheath core；The push rod is arranged in inside the outer sheath, the sheath core pass through the push rod and
The distal end of the sheath core is stretched out from the outer sheath distal end；The push rod distal end is equipped with the first anchor portion, and the sheath core distal end is set
There is the second anchor portion；During the intraluminal stent is installed on the transportation system, first anchor portion and the pipe
The first end of chamber bracket is connected, for only providing axial force, second anchor portion and the pipe to the intraluminal stent
The second end of chamber bracket is connected, so that the intraluminal stent is located in the cavity between the outer sheath and the sheath core.
In one embodiment, the first end of the intraluminal stent is equipped at least two first connectors, first anchoring
Portion includes at least two groove bodies for being set to the push rod distal end, and the intraluminal stent is installed on to the process of the transportation system
In, the convex block that a groove body surrounds connects on first connector.
In one embodiment, each groove body includes that a first slot section and one are connected with the first slot section
The second slot section, the first slot section and the second slot section be recessed inwardly to be formed by the outer surface of the push rod distal end,
And the end face of the push rod distal end is run through in the distal end of the first slot section, the distal end of the second slot section is through the push rod distal end
End face, the proximal end of the proximal end of the first slot section and the second slot section is connected.
In one embodiment, first anchor portion includes being set at least two protrusions of the push rod distal end, by institute
It states during intraluminal stent is installed on the transportation system, one first connector of a protrusion connection.
In one embodiment, the convex surfaces are smooth, for reducing between the protrusion and the epitheca inside pipe wall
Frictional force.
In one embodiment, the second end of the intraluminal stent is equipped at least two second connectors, second anchoring
Portion includes at least two hook bodies for being set to the sheath core distal surface, is formed between each hook body and the sheath wicking surface
Opening width be greater than second connector silk thread diameter.
In one embodiment, one hooked where the opening towards the sheath core distal end that body and the sheath wicking surface are formed
Side is open.
In one embodiment, the quantity for hooking body is two, and two hook bodies are with the central axis of the sheath core
Symmetry axis is axisymmetricly arranged.
In one embodiment, each hook body is in the shape of a rod, it is described hook body to far from the sheath core central axis side offset or
Person is parallel to each other with the central axis of the sheath core.
In one embodiment, the push rod is also connected with pusher grip, the push rod include connect with pusher grip it is rigid
Property section, and the compliant section connecting with the rigid section, the rigid section is between the compliant section and pusher grip.
Compared with prior art, lumen bracket conveying system of the invention is arranged to the intraluminal stent only on push rod
First anchor portion of axial force is provided, not only facilitates and bracket is encased in outer sheath, while preventing intraluminal stent axial
Cripetura, so that accurate positioning when release.
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 equipped with the overall structure diagram of the transportation system of intraluminal stent comprising an epitheca tube assembly, one
A push-rod assembly and a sheath core；
Fig. 2 is the overall structure diagram of intraluminal stent；
Fig. 3 is the overall structure diagram of outer sheath component in Fig. 1；
Fig. 4 is the overall structure diagram of push-rod assembly in Fig. 1 comprising a push rod；
Fig. 5 is the portion A enlarged drawing in Fig. 4, and push rod is equipped with groove body；
Fig. 6 is the left view in the portion A in Fig. 4；
Fig. 7 is the left view that the embodiment of protrusion is arranged in Fig. 6 on push rod；
Fig. 8 is the partial structure diagram when only installing department divides intraluminal stent for lumen bracket conveying system distal end；
Fig. 9 is the overall structure diagram of the sheath core in Fig. 1；
Figure 10 shows the intraluminal stent in Fig. 8 and is fully enclosed to the structural schematic diagram of lumen bracket conveying system distal end.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
It should be noted that the element can be straight when element is referred to as " being fixed on " or " being set to " another element
Grounding connection on the other element, can also be connected to another element by one or more connecting element indirectly
On.When an element is known as " being connected to " another element, it, which can be, is connected directly on another element, or
It is connected on another element by one or more connecting element.
In transportation system field, definition is proximal end away from the relatively near one end of operator, and away from operator, relatively remote one end is
Distally.
Fig. 1 is lumen bracket conveying system 100 provided by the invention, for self-expanding intraluminal stent 1 to be delivered to human body
Lumen inside comprising 2, push-rod assemblies 3 of an epitheca tube assembly and a sheath core 4.Epitheca tube assembly 2 includes
One sheath handle 22 and an outer sheath 21 being connected with the sheath handle 22.The outer sheath 21 and the sheath handle
22 equal inner hollows and be interconnected.Push-rod assembly 3 includes that a pusher grip 32 and one are connected with pusher grip 32
Push rod 31, push rod 31 and the equal inner hollow of pusher grip 32 and be interconnected.Push rod 31 sequentially passes through sheath handle 22, epitheca
Pipe 21, and pusher grip 32 is made to be set to side of the sheath handle 22 far from outer sheath 21, that is to say, that pusher grip 32 is set to
The proximal lateral of sheath handle 22.Sheath core 4 is coaxially disposed inside push rod 31, and substantially through entire lumen bracket conveying system
100, i.e. 4 distal end of sheath core is pierced by from 21 distal end of outer sheath.Outer sheath 21, sheath core 4 and push rod 31 are axially movable two-by-two.Lumen
Bracket 1 includes the first end 10a and second end 10b being oppositely arranged.31 distal end of push rod is equipped with the first anchor portion 33, sheath core distal end
Equipped with the second anchor portion 44；During intraluminal stent 1 is installed on transportation system, the first anchor portion 33 and intraluminal stent 1
First end 10a is connected, for only providing axial force, the second end of the second anchor portion 44 and intraluminal stent 1 to intraluminal stent 1
10b is connected, so that intraluminal stent 1 is located in the cavity between outer sheath 21 and sheath core 4.
As shown in connection with fig. 2,1 first end 10a of intraluminal stent is equipped at least two first connectors 11, and second end 10b is equipped with
At least two second connectors 12 are equipped with a rack body 13 between first connector 11 and the second connector 12.Specifically
, the quantity of the first connector 11 and the second connector 12 is two in the present embodiment, and two the first connectors 11 with
The central axis of intraluminal stent 1 is that symmetry axis is axisymmetricly arranged.
Specifically, each first connector 11 and each second connector 12 are whole from itself and rack body 13
Junction be directed away from rack body 13 direction it is axially extending, each first connector 11 and each second connector
12 include the silk thread for the bending that a both ends are connected with rack body 13 respectively.The silk thread of bending is in wave shape, crest location
Form a hook part.It is understood that the silk thread of the bending can also be serrated in wavy, it is jagged at this time
Silk thread forms a hook part in tooth top position.
Fig. 3 shows the overall structure diagram of epitheca tube assembly 2, as described above, epitheca tube assembly 2 includes outer sheath 21
And sheath handle 22.21 proximal end of outer sheath is connected with sheath handle 22.Operator pushes and pulls sheath handle 22, to control sheath hand
The advance of handle 22 perhaps retrogressing and then the advance of control outer sheath 21 (mobile to distal end) or recession (moving to the near end), from
And realize the release and recycling to self-inflated intraluminal stent 1.
Wherein, outer sheath 21 be the plastic tube with toughness, such as can by nylon, polyimides, polyurethane, polyester,
One or more of collocation is made in the materials such as PEBAX, reinforced pipe.It is understood that in order to realize intensity, flexibility and low
Coefficient of friction reaches most preferably simultaneously, and compound reinforced pipe can be used, and the metal spring if internal layer is PTFE (polytetrafluoroethylene (PTFE)) adds
Qiang Guan.
Epitheca tube assembly 2 further includes the rinse piece 23 being fixedly installed on sheath handle 22.The rinse piece 23 be used for
Transmission flushing liquor or contrast agent in outer sheath 21.Rinse piece 23 includes 231, hoses 232, Yi Jiyi of a flush-through connection
A triple valve 233.Flush-through connection 231 is connected between hose 232 and outer sheath handle 22, and with hose 232 and outer sheath hand
Handle 22 is connected to.Hose 232 is connected between triple valve 233 and flush-through connection 231, passes through flush-through connection 231 to outer sheath
Transmission flushing liquor or contrast agent in 21.Triple valve 233 is set to the one end of hose 232 far from flush-through connection 231, in hand
Preoperative connection syringe is to import flushing liquor or contrast agent.
As shown in figure 4, push rod 31 includes the rigid section 312 connecting with pusher grip 32, and connect with rigid section 312
Compliant section 311.Rigid section 312 is between pusher grip 32 and compliant section 311.Compliant section 311 and 312 outer diameter phase of rigid section
Together.The connection type of rigid section 312 and pusher grip 32 can pass through the modes such as gluing, pressing.For guarantee power transmitable,
The rigid section 312 of push rod 31 can be generally made of materials such as stainless steel, alloys；Because compliant section 311 needs to enter opposite
Tortuous blood vessel, to avoid damage to blood vessel or tissue, so being generally made of softer materials such as PEBAX, LDPE.Compliant section
311 length is related with the length for passing through tortuous section of blood vessel, usually 10cm-50cm；Rigid section 312 then guarantees actually required
Effective length, usually in 50cm-150cm.
As described above, push rod 31 is distally equipped with the first anchor portion 33.First anchor portion 33 is used for the with intraluminal stent 1
A connection piece 11 is connected, and is and only intraluminal stent 1 provides axial constraint, i.e., there is no the radial directions to the first connector 11 about
Beam.
Also referring to Fig. 5, Fig. 6, the first anchor portion 33 includes at least two circumferentially arranged slots in 31 distal end of push rod
Body 331, and a groove body 331 is correspondingly arranged with first connector 11.Preferably, the shape of each groove body 331 with and its
The shape of corresponding first connector 11 is consistent, so that during intraluminal stent 1 is installed on transportation system, one first
Connector 11 can be in a groove body 331, and is hung on the convex block that groove body 331 surrounds.
Specifically, each groove body includes a first slot section 332 and second slot being connected with the first slot section 332
Section 333.First slot section 332 and the second slot section 333 are recessed inwardly to be formed by the outer surface of 31 distal end of push rod, and the first slot section
The end face of 31 distal end of push rod is run through in 332 distal end, and the end face of 31 distal end of push rod, the first slot section are run through in the distal end of the second slot section 333
332 proximal end and the proximal end of the second slot section 333 are connected.The depth of the groove body 331 of formation is with can be by the first connector 11
Silk thread, which is placed in, to be wherein limited, and the width of the opening for the groove body 331 being formed simultaneously is greater than the diameter of 11 silk thread of the first connector, with
Make the first connector 11 when entering groove body 331 or coming out from groove body 331, groove body 331 is to the first connector 11 in radial direction
On be not present resistance, that is, realize push rod 31 to the first connector 11 only with axial constraint power connection.
It is understood that the shape of each groove body 331 can not also be with the shape of the first corresponding connector 11
It is consistent, as long as first connector 11 can be hung on the convex block that a groove body 331 surrounds.It is also understood that
Be, the quantity of groove body 331 may be three, four or more, set according to actual needs.
It please refers to shown in Fig. 7, it is to be understood that the first anchor portion 33 can not also use the structure of groove body 331, can also
Think and be set at least two circumferential protrusions 334 of the distal end of push rod 31, when assembly, a protrusion 334 connects one first connection
Part 11, i.e. the first connector 11 are hung in a protrusion 334, and individually protrusion 334 provides one axially for the first connector 11
Restraining force.It will also be appreciated that the structure that the first anchor portion 33 can be combined with each other for groove body 331 with protrusion 334, e.g.
The part that groove body 331 surrounds projects radially outwardly to form protrusion 334 relative to 31 surface of push rod, at this time groove body 331 and protrusion 334
It can combine jointly and provide an axial constraint power to the first connector 11.When the first anchor portion 33 is provided with protrusion 334, to reduce
Frictional force between raised 334 surfaces and 21 inner wall of outer sheath, raised 334 surfaces are smooth, e.g. coat on raised 334 surfaces
There is PTFE outer membrane or carries out hydrophilic coating processing.
Please also refer to shown in Fig. 8, by the way that the first anchor portion 33 is arranged, it is fitted by intraluminal stent 1 into outer sheath 21
When, the first connector 11 can be embedded in groove body 331 (or by convex by the first connector 11 of radial compression intraluminal stent 1
334 are played to tick) in；Pusher grip 32 is pulled towards 1 transportation system of intraluminal stent, 100 proximal end later, by push rod 31 for pipe
1 first end 10a of intraluminal stent is taken the lead in importeding into outer sheath 21 by the traction of chamber bracket 1；Further, radial compression near
The rack body 13 of outer sheath 21, until it shrinks the internal diameter that outer diameter is less than outer sheath 21, it is then slowly defeated to intraluminal stent
It send 100 proximal end of system to pull push rod 31, makes intraluminal stent 1 is whole to take in outer sheath 21 step by step.In the whole process, lumen
Bracket 1 is only radially compressed power at second end 10b, and 1 first end 10a of intraluminal stent is by axial tractive force, tractive force
Intraluminal stent 1 is set to remain at diastole state, issuable axial accumulation compression when it being avoided to enter sheath.
Fig. 9, Figure 10 are please referred to, sheath core 4 includes seeker 41, core pipe 42, female Luer 43 and the second anchor portion 44.
Seeker 41 is tapered, is set to the distal end of core pipe 42, keeps smooth when lumen bracket conveying system 100 can be made to enter blood vessel
Transition avoids damage to blood vessel, while its maximum outside diameter is adapted with 21 internal diameter of outer sheath, makes seeker 41 can be in outer sheath 21
It moves forward and backward.Female Luer 43 is set to the proximal end of core pipe 42, for connecting 42 inner cavity of irrigation with syringe core pipe or to body
Interior injection contrast agent, with core pipe 42 using injection molding, glue is Nian Jie or the modes such as to be threadedly coupled connected.Second anchor portion
44 are set to core pipe 42 close to the circumferential direction of 41 one end of seeker, are connected for the second connector 12 with intraluminal stent.
When discharging intraluminal stent 1, outer sheath 21 is withdrawn first, until where making the first connector 11 of intraluminal stent 1
One end (first end 10a i.e. shown in FIG. 1) be placed among lumen completely, make the first end 10a of intraluminal stent 1 take the lead in releasing
It puts, withdrawing sheath core 4 later separates the second anchor portion 44 with the second connector 12.
By the way that the second anchor portion 44 is arranged, when withdrawing outer sheath 21, the second anchor portion 44 can be in charge of chamber branch with receiving portion
The resistance that frame 1 discharges, avoids resistance during release from all acting on push rod 31, therefore can reduce intraluminal stent 1
The risk of 13 cripetura of frame ontology.Meanwhile by one end where 1 second connector of intraluminal stent 12 (i.e. the shown in Fig. 1
Two end 10b) anchoring the controlled release of intraluminal stent 1 also may be implemented, occur shifting after avoiding intraluminal stent 1 from discharging shows
As.In addition, being discharged first to the second end 10b of intraluminal stent 1 when discharging intraluminal stent 1, ensure that releasing position
Accuracy.
Specifically, the second anchor portion 44 is to be set to the circumferential hook body 441 of core pipe 42.Hook body 441 and 42 surface phase of core pipe
U-shaped opening mutually is cooperatively formed, the one end open where the U-shaped opening towards seeker 41, i.e., towards one where 4 distal end of sheath core
Side is open, with make the second connector 12 by be placed in hook body 441 and opening that 4 surface of sheath core is formed in mode realize and the
Two anchor portions 44 are connected.
It should be noted that the body of rod where hooking the free end of body 441 is deviated to the side far from core pipe 42 or and core
Pipe 42 is parallel to each other, and makes when proximally withdrawing the release intraluminal stent 1 of core pipe 42, can facilitate will hook body 441 and the second connector
12 separation.
It should be noted that using the number for hooking body 441 for two in the present invention, and two hook bodies 441 are with core pipe 42
Central axis is that symmetry axis is axisymmetricly arranged.Above-mentioned setting both ensure that the stability that intraluminal stent 1 is connect with sheath core 4, simultaneously
It since the number for hooking body 441 is less, also ensures when withdrawing sheath core 4, hooks body 441 and the separation of the second connector 12 is more square
Just.
It is understood that hook body 441 quantity may be three, four or more, according to actual needs come
Setting.In conclusion by the way that the first anchor portion 33 is arranged on push rod 31, and first anchor portion 33 is only to pipe in the present invention
1 first end 10a of chamber bracket has only axial constraint, can be by pulling push rod 31 towards 100 proximal end of lumen bracket conveying system
Intraluminal stent 1 is encased in outer sheath 21 by mode；It, can be outside withdrawing simultaneously by the way that the second anchor portion 44 is arranged on sheath core 4
When sheath 21 discharges intraluminal stent 1, it is fixed, is made by the second anchor portion 44 and the second end 10b of intraluminal stent 1
Only the 1 first end 10a of intraluminal stent with axial constraint power takes the lead in being radially expanded, and realizes 1 first end 10a of intraluminal stent prior to pipe
1 second end 10b of chamber bracket release, so that bracket accurate positioning.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (7)
1. a kind of lumen bracket conveying system, for being fed from expansion tube cavity bracket comprising an outer sheath, a push rod,
An and sheath core；The push rod is arranged in inside the outer sheath, and the sheath core passes through the remote of the push rod and the sheath core
End is stretched out from the outer sheath distal end；
The push rod distal end is equipped with the first anchor portion, and the sheath core distal end is equipped with the second anchor portion；The intraluminal stent is installed
During the transportation system, first anchor portion is connected with the first end of the intraluminal stent, for the pipe
Chamber bracket only provides axial force, by pulling the push rod by the lumen towards the lumen bracket conveying system proximal end
Bracket is encased in the outer sheath, and second anchor portion is connected with the second end of the intraluminal stent, and intraluminal stent is
It is only radially compressed power at two ends, so that the intraluminal stent is located in the cavity between the outer sheath and the sheath core
It is interior；The sheath core includes core pipe, and second anchor portion includes at least two hook bodies for being set to the core pipe circumferential direction, the hook
Body and the core pipe surface complement each other to form U-shaped opening, and the side where the U-shaped opening towards the sheath core distal end is opened
It puts, the body of rod where the free end for hooking body is parallel to each other with the core pipe, and the second end of the intraluminal stent is equipped at least
Two the second connectors, each width for hooking the opening formed between body and the sheath wicking surface are greater than second connection
The diameter of the silk thread of part is formed by out so that second connector can be placed in the hook body with the core pipe surface
In mouthful, and when proximally withdrawing the core pipe release intraluminal stent, the hook body is separated with second connector.
2. lumen bracket conveying system according to claim 1, which is characterized in that the first end of the intraluminal stent is equipped with
At least two first connectors, first anchor portion include at least two groove bodies for being set to the push rod distal end, will be described
During intraluminal stent is installed on the transportation system, the convex block that a groove body surrounds connects first connection
On part.
3. lumen bracket conveying system according to claim 2, which is characterized in that each groove body includes one
One slot section and a second slot section being connected with the first slot section, the first slot section and the second slot section are by described
The outer surface of push rod distal end is recessed inwardly to be formed, and the end face of the push rod distal end, institute are run through in the distal end of the first slot section
The proximal end of the end face of the push rod distal end, the proximal end of the first slot section and the second slot section is run through in the distal end for stating the second slot section
It is connected.
4. lumen bracket conveying system according to claim 1, which is characterized in that the first end of the intraluminal stent is equipped with
At least two first connectors, first anchor portion include being set at least two protrusions of the push rod distal end, will be described
During intraluminal stent is installed on the transportation system, one first connector of a protrusion connection.
5. lumen bracket conveying system according to claim 4, which is characterized in that the convex surfaces are smooth, for dropping
Frictional force between the low protrusion and the epitheca inside pipe wall.
6. lumen bracket conveying system according to claim 1, which is characterized in that the quantity for hooking body is two, and
Two hook bodies are axisymmetricly arranged using the central axis of the sheath core as symmetry axis.
7. lumen bracket conveying system according to claim 1, which is characterized in that the push rod is also connected with push rod hand
Handle, the push rod include the rigid section connecting with pusher grip, and the compliant section connecting with the rigid section, the rigid section
Between the compliant section and pusher grip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413817.6A CN106333774B (en) | 2015-07-14 | 2015-07-14 | Lumen bracket conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413817.6A CN106333774B (en) | 2015-07-14 | 2015-07-14 | Lumen bracket conveying system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106333774A CN106333774A (en) | 2017-01-18 |
| CN106333774B true CN106333774B (en) | 2019-05-31 |
Family
ID=57826374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510413817.6A Active CN106333774B (en) | 2015-07-14 | 2015-07-14 | Lumen bracket conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106333774B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111655197B (en) * | 2017-10-24 | 2023-07-04 | 杭州启明医疗器械股份有限公司 | Interventional instrument conveying device convenient to control |
| WO2020047877A1 (en) * | 2018-09-09 | 2020-03-12 | 上海医立泰生物科技有限公司 | Assisted stent delivery device and stent delivery method |
| CN109700572B (en) * | 2018-12-29 | 2020-09-25 | 先健科技(深圳)有限公司 | A stop device that contracts for conveyer and conveyer thereof |
| CN109700575B (en) * | 2018-12-29 | 2022-02-22 | 先健科技(深圳)有限公司 | Conveyor and conveying system |
| CN110013380A (en) * | 2019-04-30 | 2019-07-16 | 爱博诺德（北京）医疗科技有限公司 | Capsular tension ring implanting device |
| CN110916862B (en) * | 2019-12-10 | 2022-01-18 | 深圳市先健畅通医疗有限公司 | Conveying device and control assembly thereof |
| CN114533357A (en) * | 2020-11-26 | 2022-05-27 | 深圳市先健畅通医疗有限公司 | Conveying device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299975A (en) * | 2005-11-02 | 2008-11-05 | 卡迪欧曼德股份有限公司 | Twist-down implant delivery technologies |
| CN102462565A (en) * | 2011-10-25 | 2012-05-23 | 张石江 | Recyclable and adjustable interventional stent for constricting blood vessels |
| CN102548508A (en) * | 2009-09-21 | 2012-07-04 | 麦德托尼克公司 | Stented transcatheter prosthetic heart valve delivery system and method |
| CN102949253A (en) * | 2012-10-16 | 2013-03-06 | 北京迈迪顶峰医疗科技有限公司 | Support valve and conveying device thereof |
| CN103083122A (en) * | 2013-01-21 | 2013-05-08 | 北京华脉泰科医疗器械有限公司 | Fixing device of covered stent |
| CN103251468A (en) * | 2012-02-02 | 2013-08-21 | 科维蒂恩有限合伙公司 | Stent retaining systems |
| CN204909754U (en) * | 2015-07-14 | 2015-12-30 | 先健科技(深圳)有限公司 | Lumen support conveying system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480423A (en) * | 1993-05-20 | 1996-01-02 | Boston Scientific Corporation | Prosthesis delivery |
| US8052732B2 (en) * | 2006-11-14 | 2011-11-08 | Medtronic Vascular, Inc. | Delivery system for stent-graft with anchoring pins |
-
2015
- 2015-07-14 CN CN201510413817.6A patent/CN106333774B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299975A (en) * | 2005-11-02 | 2008-11-05 | 卡迪欧曼德股份有限公司 | Twist-down implant delivery technologies |
| CN102548508A (en) * | 2009-09-21 | 2012-07-04 | 麦德托尼克公司 | Stented transcatheter prosthetic heart valve delivery system and method |
| CN102462565A (en) * | 2011-10-25 | 2012-05-23 | 张石江 | Recyclable and adjustable interventional stent for constricting blood vessels |
| CN103251468A (en) * | 2012-02-02 | 2013-08-21 | 科维蒂恩有限合伙公司 | Stent retaining systems |
| CN102949253A (en) * | 2012-10-16 | 2013-03-06 | 北京迈迪顶峰医疗科技有限公司 | Support valve and conveying device thereof |
| CN103083122A (en) * | 2013-01-21 | 2013-05-08 | 北京华脉泰科医疗器械有限公司 | Fixing device of covered stent |
| CN204909754U (en) * | 2015-07-14 | 2015-12-30 | 先健科技(深圳)有限公司 | Lumen support conveying system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106333774A (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106333774B (en) | Lumen bracket conveying system | |
| CN204909754U (en) | Lumen support conveying system | |
| US9662238B2 (en) | Attachment mechanism for stent release | |
| CN108186176B (en) | Implant delivery system | |
| US8663305B2 (en) | Retraction mechanism and method for graft cover retraction | |
| JP5068527B2 (en) | Stent delivery system with improved delivery force distribution | |
| JP5887639B2 (en) | Stent graft delivery system | |
| CN105283154B (en) | Stent delivery system | |
| US8747448B2 (en) | Stent graft delivery system | |
| CN105007865A (en) | Stent-graft delivery system having a tip capture mechanism with elongated cables for gradual deployment and repositioning | |
| US9592142B2 (en) | Inner catheter arrangement for a self-expanding medical device delivery system | |
| US9192499B2 (en) | Inner catheter for a self-expanding medical device delivery system with a closed coil wire | |
| WO2019011274A1 (en) | Conveying system for implant | |
| US20150313738A1 (en) | Push and pull medical device delivery system | |
| US9867729B2 (en) | Endograft introducer and a capsule assembly for an endograft introducer | |
| CN109528371B (en) | Aortic stent delivery system with remotely positioned and reversely released function | |
| US9901471B2 (en) | Spring assisted medical device deployment assembly | |
| CN107280832B (en) | Stent delivery system with anisotropy shield sheath | |
| JP6990925B2 (en) | Release system for self-expanding internal prosthesis | |
| US20140100645A1 (en) | Medical device delivery system with an inner catheter having a flushing groove | |
| CN210019820U (en) | Aortic stent conveying system with distal positioning and reverse releasing functions | |
| CN116077255B (en) | Braided stent delivery system | |
| WO2018005473A1 (en) | Delivery systems for endovascular devices and related methods | |
| US10016293B2 (en) | Prosthesis delivery systems having an atraumatic tip for use with trigger wires |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |