CN107280831A - Intravascular stent induction system and its conduit tube component - Google Patents
Intravascular stent induction system and its conduit tube component Download PDFInfo
- Publication number
- CN107280831A CN107280831A CN201610224686.1A CN201610224686A CN107280831A CN 107280831 A CN107280831 A CN 107280831A CN 201610224686 A CN201610224686 A CN 201610224686A CN 107280831 A CN107280831 A CN 107280831A
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- Prior art keywords
- tube
- metal
- component
- conduit
- inner tube
- Prior art date
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Links
- 230000006698 induction Effects 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 68
- 239000002184 metal Substances 0.000 claims abstract description 68
- 206010058109 Hangnail Diseases 0.000 claims abstract description 31
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229920002614 Polyether block amide Polymers 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 17
- 229910001000 nickel titanium Inorganic materials 0.000 description 9
- 239000008280 blood Substances 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 210000003813 thumb Anatomy 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 231100000216 vascular lesion Toxicity 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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
- A61F2/962—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
- A61F2002/9505—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
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)
- Prostheses (AREA)
Abstract
The invention discloses a kind of intravascular stent induction system and its conduit tube component.According to one embodiment of the present invention, the conduit tube component for intravascular stent induction system can include：Outer tube；Inner tube, at least a portion of said inner tube is located in the outer tube, and said inner tube includes metal knitted pipe and the metal tube being connected with the metal knitted pipe；Hangnail, is arranged on the metal tube of said inner tube, and the hangnail is configured to that when said inner tube is moved relative to outer tube intravascular stent can be moved.Because inner tube is made up of metal knitted pipe and metal tube, hangnail is arranged on metal tube, the rigidity at hangnail is improved, solved in the prior art because rigidity is not enough and occurs discounting phenomenon.
Description
Technical field
The present invention relates to medical instruments field, more particularly, it is related to a kind of intravascular stent that is used for and conveys
System and its conduit tube component.
Background technology
Stent in the treatment method is performed the operation using the minimally invasive intervention of stent in the treatment, and wound is small, and few intercurrent disease, effect is good,
Main method as current treatment periphery hemadostewnosis.
Stent in the treatment method usually requires with induction system intravascular stent being implanted in vivo.In existing skill
In art, intravascular stent induction system generally comprises the conduit tube component and handle portion of interconnection, conduit tube component
Generally include outer tube and inner tube, intravascular stent may be provided between inner tube and outer tube, outer tube with it is interior
Pipe is hollow setting, is available for seal wire to pass through；Handle portion is included suitable for the housing of gripping and for driving
The drive component that inner tube is moved back and forth, outer tube is mutually fixed with housing, and drive component connects with inner tube operability
Close.
In surgical procedure, doctor guides the conduit tube component of induction system to reach operative site using seal wire,
Operation drive component moves axially forward inner tube afterwards, so that with support intravasation, afterwards,
Support is deployable and is supported on blood vessel.
In the prior art, as shown in figure 4, the ＇ of inner tube 800 is integrally formed, the ＇ of hangnail 900 is connected to inner tube
On 800 ＇, so, in release stent procedures, due to rigid deficiency at hangnail, it is possible to which generation is beaten
Discount as.
The content of the invention
In view of above-mentioned technological deficiency, the invention provides a kind of intravascular stent induction system and its conduit tube component.
According to one embodiment of the present invention, the conduit tube component for intravascular stent induction system can
With including：
Outer tube；
Inner tube, at least a portion of said inner tube is located in the outer tube, and said inner tube is compiled including metal
Knit pipe and the metal tube being connected with the metal knitted pipe；
Hangnail, is arranged on the metal tube of said inner tube, the hangnail be configured to when said inner tube relative to
Outer tube can move intravascular stent when moving.
According to another embodiment of the invention, the intravascular stent induction system can include：
Housing；
According to the conduit tube component of above-mentioned embodiment, wherein, the outer tube of the conduit tube component is positioned at described
The outside of housing and it is connected with the housing, a part for the inner tube of the conduit tube component is located at the housing
It is interior, and the inner tube another part be located at the outer tube inside；
Drive component a, part for the drive component is located in the housing, with being located at for said inner tube
A part of operability engagement in the housing, for driving said inner tube can be vertically in the outer tube
It is mobile.
Using embodiment of the present invention, have the advantages that：
Because inner tube is made up of metal knitted pipe and metal tube, hangnail is arranged on metal tube, improved
Rigidity at hangnail, is solved in the prior art because rigidity is not enough and occurs discounting phenomenon.
Brief description of the drawings
Fig. 1 is the stereo decomposing of one for showing the intravascular stent induction system according to embodiment of the present invention
Figure；
Fig. 2 is the schematic diagram of one of the inner tube according to embodiment of the present invention；
Fig. 3 is the enlarged drawing of part B in Fig. 2；
Fig. 4 shows the inner tube of the intravascular stent induction system of prior art.
Embodiment
It is described in detail to various aspects of the present invention below in conjunction with the drawings and specific embodiments.Wherein,
Part in accompanying drawing is not necessarily drawn to scale, and it focuses on carrying out the principle of the present invention
Illustrate.
In various embodiments of the present invention, well-known structure, material or operation are not shown or not
Elaborate.Also, described feature, structure or characteristic can be in one or more embodiments
Combine in any way.In addition, it will be appreciated by those skilled in the art that following various embodiments
For for example, not for limiting the scope of the invention.It can also be readily appreciated that, this paper institutes
State can be arranged with the element or part in each embodiment shown in the drawings by a variety of different configurations and
Design.
With reference to Fig. 1, it illustrates one of the intravascular stent induction system according to embodiment of the present invention.
, can for intravascular stent to be delivered to internal induction system, i.e. intravascular stent induction system in this example
To include, but are not limited to：It is the housing that is made up of right half-shell 110 and left shell half 120, cleaning pipe 300, main
The conduit tube component and drive component 400 to be made up of outer tube 200 and inner tube 800.
Wherein, the outer tube 200 is located at the outside of the housing and passes through adapter piece 600 and three-way pipe
500 are connected with the first end 101 of the housing.Specifically, outer tube 200 is inserted and extended to and three
The first end 501 of siphunculus 500, so that connected with the three-way pipe 500, and adapter piece 600 and the shell
Body is fixed, for example, right half-shell 110 and left shell half 120 clamp the adapter piece 600, and passes through nut
121 coordinate with connection features 111, and right half-shell 110 and left shell half 120 are fixed.Three-way pipe 500 is used for
Forward part (i.e. close to the part of outer tube) to intravascular stent induction system is cleaned, and is used as one kind
Optional embodiment, can be Rule three-way pipe, it is of course also possible to be that can be used for intravascular stent delivery system
Other suitable three-way pipes of system.As shown in figure 1, three-way pipe 500 is located at the first end 101 of the housing,
The three-way pipe 500 can have extend out to the outside of the housing first end 501, in the housing and
The second end 502 for being communicated with the straight line of first end 501 and it is arranged on the end of first end 501 and second
Between 502 and extend out to the housing outside the 3rd end 503.Wherein, the of the three-way pipe 500
One end 501 is connected and connected with outer tube 200 by adapter piece 600.The first end of said inner tube 800
The three-way pipe 500 is extended through from the second end 502 of the three-way pipe 500, is stretched out from its first end 501
And enter in the outer tube 200.The end at the 3rd end 503 of three-way pipe 500 has opening and envelope
Close the joint cap 522 of the opening.So, in the course of conveying of intravascular stent, the closing of joint cap 522 should
Opening, is flowed out with preventing humor (i.e. blood) from the opening；After intravascular stent conveying terminates, it can beat
Joint cap 522 is opened, cleaning fluid, the progress to the forward part of intravascular stent induction system are added by the opening
Cleaning.Alternatively, it is convenient to omit three-way pipe 500, for example, for disposable blood pipe holder induction system,
Due to using once abandoning, being cleaned without using three-way pipe 500 to it, therefore, such blood
Pipe holder induction system can not have three-way pipe 500.
Wherein, the cleaning pipe 300 is used for after intravascular stent conveying terminates to intravascular stent induction system
Cleaned.In one embodiment of the invention, cleaning pipe 300 can be integrally formed two-way
Pipe, for example, by the integrally formed Rule bipass of PC (makrolon) material, itself and the housing
Second end 102 is connected, and the first end 301 of the cleaning pipe 300 is located at the inside of the housing, the
Two ends 302 extend out to the outside of the housing.In one embodiment of the invention, pipe 300 is cleaned
On be provided with corresponding position in connection features 303,304, the right half-shell 110 of housing be provided with it is described
The connection features 113,114 that connection features 303,304 coordinate, by the way that connection features 303,304 are embedding
Enter into connection features 113,114, cleaning pipe 300 is fixed with housing, while by by right half-shell 110
With left shell half 120 with reference to clamp it is described cleaning pipe 300.In addition, as shown in figure 1, the cleaning pipe
The end at 300 the second end 302 has opening and closes the joint cap 320 of the opening.So, in blood vessel
In the course of conveying of support, joint cap 320 closes the opening, with preventing humor (i.e. blood) from the opening
Outflow；After intravascular stent conveying terminates, joint cap 320 can be opened, cleaning fluid is added by the opening,
Intravascular stent induction system is cleaned.Alternatively, it is convenient to omit cleaning pipe 300, for example, for
Disposable blood pipe holder induction system, due to using once abandoning, without using cleaning pipe 300 to it
Cleaned, therefore, such intravascular stent induction system can be without cleaning pipe 300.
Wherein, a part for said inner tube 800 is located in the housing.The first end of inner tube 800 is (not
Show) inside of the outer tube 200 is stretched to, in this example, inner tube 800 is from three-way pipe 500
Second end 502 is inserted through three-way pipe 500 and extend into the inner chamber of outer tube 200.Said inner tube
The second end can from it is described cleaning pipe 300 first end 301 stretch in the tube chamber of the cleaning pipe 300.
Wherein, a part for the drive component 400 is located in the housing, with said inner tube 800
Part operation engagement in the housing, specifically, drive component 400 is main by thumb drives
Part 401 and guide rail 402 are constituted, and drive component 400 is located between the first end of inner tube and the second end, its
In, the right half-shell 110 of housing is connected by connection features 112,115,116 with drive component 400, spiral shell
Mother 121 passes through the hole in the left shell half 120 of housing, and through the hole on jump ring 122 and guide rail 402,
The screw 111 extending into right half-shell 110, by the engagement of nut 121 and screw 111 by left shell half 120
It is combined together with right half-shell 110, so that a part for drive component 400 is contained in housing, and
A part for the thumb drives part 401 of drive component 400 is exposed to be manually actuated from housing.It is interior
Pipe 800 passes through guide rail 402, and is engaged with a part for thumb drives part 401, when doctor or other operations
When person operates thumb drives part 401, under the push-and-pull of thumb drives part 401, inner tube 800 is along guide rail
402 movements, and then said inner tube is axially moveable in the inner chamber of the outer tube and cleaning pipe, specifically
For, the first end of inner tube is relatively moved in outer tube 200, so that intravascular stent is along outer tube
200, which advance, simultaneously enters intravascular, afterwards, deployable and be supported on blood vessel.At the same time, inner tube
Moved with moving integrally for inner tube in cleaning pipe 300 at the second end.
In the conduit tube component of embodiment of the present invention, at least a portion of inner tube 800 is located at the overcoat
In pipe 200, as shown in Fig. 2 one end connection conical head (TIP) 1100, the other end of inner tube 800
It is connected through inner sleeve 1200, and with inner sleeve 1200.Wherein, TIP first 1100 is located at outer tube
200 end, for guiding the conduit tube component to move in the blood vessels.The inner sleeve 1200 is described
Keep said inner tube 800 to be axially moveable in outer tube 200, prevent inner tube 800 in outer tube 200
Bend.Hangnail 900 is provided with said inner tube 800, specifically, hangnail 900 is arranged on interior
Between intravascular stent assembly area on pipe 800, i.e. inner sleeve 1200 and TIP first 1100.The hangnail
900 can be made up of the elastomeric material of such as Nitinol etc, and be configured to work as said inner tube 800
Intravascular stent can be moved to vascular lesion position when being moved relative to outer tube 200.Specifically,
Preceding to push away inner tube 800 when hangnail 900 is in outer tube 200, hangnail 900 captures the inwall of intravascular stent
Discharge outward, intravascular stent is moved to vascular lesion position, while hangnail 900 stretches out outer tube 200,
Post-tensioning inner tube 800, hangnail 900 is back in outer tube 200, and one section of intravascular stent of crawl is interior again
Wall releases one section again, and this action is until release completely repeatedly.Thus, inner tube goes for arbitrarily long
The intravascular stent of degree, without in the intravascular stent according to different length or the customization of different vascular lesion positions
Pipe, improves the compatibility of intravascular stent induction system, and thus operation is simplified, and reduces blood
The cost of pipe holder induction system, also reduces the treatment cost of patient certainly.
In embodiments of the present invention, as shown in figure 3, inner tube 800 can include, but are not limited to：Gold
Belong to woven tube 801, the metal tube 802 being connected with the metal knitted pipe 801, connecting tube 803.The company
Adapter 803 is enclosed on the junction of the metal tube 802 and the metal knitted pipe 801, the connecting tube
803 are glued by binding agent (for example, anaerobic adhesive) and the metal knitted pipe 801 and the metal tube 802
Connect.Metal tube 802 connects TIP heads, metal knitted pipe 801 and the connection driving group of said inner tube 800
Part (for example, the other metal tube) connection of part 400.In one kind side of being preferable to carry out of the present invention
In formula, the metal tube 802 can be NiTi pipe, it is preferable that the metal tube 802 and connecting tube
Length direction of the part of 803 connections along the metal tube can have helical cutting (not shown).In metal tube
802 it is Nian Jie with connecting tube 803 when, binding agent enter helical cutting in, increase adhesive strength.Simultaneously when interior
, can be more preferable by property when pipe 800 enters human body bending lesion.
As shown in figure 3, hangnail 900 is arranged on metal tube 802, and abuts or adjoin with connecting tube 803
Connect or connect, it is preferable that the outer surface of hangnail 900 and the outer surface of connecting tube 803 are continuous and smoothed
Cross.So, it is possible to reduce the numbers of steps on inner tube outer surface, reduce step and behaviour is conveyed to intravascular stent
The adverse effect of work.In one embodiment of the invention, hangnail 900 includes corners 901 and base
Portion 902, the radial outward expansion in the axial direction of metal tube 802 from base portion 902 of corners 901, i.e.
The line radial expansion centered on the axis of metal tube 802, is configured to two wedge angle straight lines of two corners 902
Distance is more than the radial dimension of base portion 902, and the diameter and the diameter phase of connecting tube 803 of base portion 902
Deng.Alternatively, hangnail 900 can be made up of the elastomeric material of such as marmem etc, and
By laser welding on the metal tube of inner tube 800, so, the rigidity at hangnail setting is improved, solved
Determine in the prior art because rigidity is not enough and occurs discounting phenomenon.
In an advantageous embodiment, the metal knitted pipe 801 is three-decker, wherein, described
Internal layer is that PTFE (polytetrafluoroethylene (PTFE)) layer, outer layer are PEBAX (block polyetheramides in three-decker
Resin) layer and intermediate layer between the internal layer and outer layer be wire braid, for example not
Become rusty steel braided steel wire net.Wherein, the metal tube 802 is fixedly connected with bag with the metal knitted pipe 801
Include：The wire braid of the metal tube 802 and the metal knitted pipe 801 is welded, i.e. Laser Welding
Connect NiTi pipe and wire braid.
In another preferred embodiment of the present invention, it is convenient to omit connecting tube 803, inner tube is compiled by metal
Knit pipe and metal tube is constituted.One end of metal tube is connected with metal knitted pipe, and the other end is connected with TIP；
One end of metal knitted pipe is connected with metal tube, and the other end passes through inner sleeve.The one end of the metal tube
It is inserted into the one end of the metal knitted pipe and the metal tube is fixed with the metal knitted pipe and connected
Connect.
It should be noted that above is thought, the embodiment of concept or principle for illustrating the present invention,
The invention is not limited in above-described embodiment.Those skilled in the art are according to inventive concept, concept or original
Reason can carry out various changes to above-described embodiment, obtain more embodiments.
When being made up for inner tube of metal knitted pipe, NiTi pipe and connecting tube, in the case of control wall thickness, no
The attachment force between conduit parts is influenceed, using ultra-thin-wall connecting tube, inner tube front end is using the super of grinding
Thin metallic tubd couples, and wall thickness is 0.02mm after grinding, and this is that other polymer plastic expects pipes are not reached.
Also, the connected mode used：NiTi pipe is inserted into metal establishment pipe, connecting pipe box are in two pipes
Each half, after anaerobic adhesive is coated in the interval inwall bonding of connecting tube firmly, laser welding of nickel titanium tube is compiled with metal
Tubulation.So, pipe connected pipe wall thickness effectively in control, also, inner tube when pushing repeatedly, it is to avoid platform
The excessive head end for causing connecting tube of rank scrapes support, and influence pushes effect.Gluing combination laser welding, it is double
Insure again, even if anaerobic adhesive still ensures that the TIP of inner tube by coming off for a long time or rosin joint phenomenon occur
Human body will not be fallen into, malpractice occurs.
In addition, increasing an elastic NiTi hangnail on the metal tube of inner tube carries out reciprocating push, work as hangnail
When in outer tube, the hangnail crawl rack inner wall of NiTi elasticity discharges support and goes out outer tube to angiosis outward
Become position, captured again while hangnail stretches out (backing positions are constant) in outer tube, post-tensioning hangnail to outer tube
One section of rack inner wall releases one section again, and this action is until release completely repeatedly.
Hangnail cuts heat setting process using NiTi, and expansion is pointed at horn mouth, for 6F pipes sheath (i.e. diameter
For 6F outer tube), two wedge angle air line distances are more than 1.35mm.
So, the inner tube that the present invention is designed can be unified to be a kind of specification, release all blood for meeting 6F pipe sheaths
Pipe holder, solving existing general induction system needs to customize inner tube length according to stent length and diameter
The problem of.Also, the reciprocal small distance of one-handed performance formula is pushed repeatedly, and easy to control, feel is stronger.
The term and wording used in description of the invention is just to for example, be not intended to constitute limit
It is fixed.It will be appreciated by those skilled in the art that before the general principle of disclosed embodiment is not departed from
Put, various change can be carried out to each details in above-mentioned embodiment.Therefore, protection model of the invention
Enclose and only determined by claim, in the claims, unless otherwise indicated, all terms should be by most wide
The general rational meaning is understood.
Claims (10)
1. a kind of conduit tube component for intravascular stent induction system, it is characterised in that the conduit tube component
Including：
Outer tube；
Inner tube, at least a portion of said inner tube is located in the outer tube, and said inner tube is compiled including metal
Knit pipe and the metal tube being connected with the metal knitted pipe；
Hangnail, is arranged on the metal tube of said inner tube, the hangnail be configured to when said inner tube relative to
Outer tube can move intravascular stent when moving.
2. conduit tube component as claimed in claim 1, it is characterised in that the one end of the metal tube is inserted
Enter into the one end of the metal knitted pipe and be fixedly secured to one another.
3. conduit tube component as claimed in claim 2, it is characterised in that described metal knitted Guan Weisan layers
Structure, wherein, in the three-decker internal layer be PTFE layers, outer layer be PEBAX layers, Yi Jiwei
Intermediate layer between the internal layer and outer layer is wire braid.
4. conduit tube component as claimed in claim 3, it is characterised in that the metal tube and the metal
Woven tube be fixedly connected including：The wire braid of the metal tube and the metal knitted pipe is welded.
5. conduit tube component as claimed in claim 4, it is characterised in that said inner tube also includes connecting tube,
Wherein, the connecting pipe box are in the junction of the metal tube and the metal knitted pipe, the connecting tube
It is Nian Jie with the metal knitted pipe and the metal tube by binding agent.
6. conduit tube component as claimed in claim 5, it is characterised in that the metal tube with it is described
There is helical cutting along the length direction of the metal tube on the part of connecting tube bonding.
7. conduit tube component as claimed in claim 5, it is characterised in that the binding agent includes anaerobic adhesive.
8. conduit tube component as claimed in claim 4, it is characterised in that the welding includes laser welding.
9. conduit tube component as claimed in claim 5, it is characterised in that the hangnail is arranged to described
Abutted on metal tube with the connecting tube.
10. a kind of intravascular stent induction system, it is characterised in that including：
Housing；
According to the conduit tube component described in any one in claim 1 to 9, wherein, the conduit tube component
Outer tube be located at the housing outside and be connected with the housing, the one of the inner tube of the conduit tube component
Part be located at the housing in, and the inner tube another part be located at the outer tube inside；
Drive component a, part for the drive component is located in the housing, with being located at for said inner tube
A part of operability engagement in the housing, for driving said inner tube can be vertically in the outer tube
It is mobile.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224686.1A CN107280831B (en) | 2016-04-12 | 2016-04-12 | Intravascular stent transportation system and its conduit tube component |
| EP17781891.1A EP3443940A4 (en) | 2016-04-12 | 2017-04-12 | Vascular stent conveying system and duct assembly thereof |
| US16/093,619 US11116651B2 (en) | 2016-04-12 | 2017-04-12 | Vascular stent delivery system and tubing assembly thereof |
| PCT/CN2017/080216 WO2017177915A1 (en) | 2016-04-12 | 2017-04-12 | Vascular stent conveying system and duct assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224686.1A CN107280831B (en) | 2016-04-12 | 2016-04-12 | Intravascular stent transportation system and its conduit tube component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107280831A true CN107280831A (en) | 2017-10-24 |
| CN107280831B CN107280831B (en) | 2019-02-01 |
Family
ID=60093578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610224686.1A Active CN107280831B (en) | 2016-04-12 | 2016-04-12 | Intravascular stent transportation system and its conduit tube component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107280831B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107280831B (en) | 2019-02-01 |
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Denomination of invention: Vascular stent delivery system and its catheter components Granted publication date: 20190201 Pledgee: CITIC Bank Limited by Share Ltd. Suzhou branch Pledgor: SUZHOU INNOMED MEDICAL DEVICE Co.,Ltd. Registration number: Y2024980016457 |