CN107280831B - Intravascular stent transportation system and its conduit tube component - Google Patents
Intravascular stent transportation system and its conduit tube component Download PDFInfo
- Publication number
- CN107280831B CN107280831B CN201610224686.1A CN201610224686A CN107280831B CN 107280831 B CN107280831 B CN 107280831B CN 201610224686 A CN201610224686 A CN 201610224686A CN 107280831 B CN107280831 B CN 107280831B
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- Prior art keywords
- tube
- metal
- component
- conduit
- inner tube
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 64
- 239000002184 metal Substances 0.000 claims abstract description 64
- 206010058109 Hangnail Diseases 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 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
- 238000005520 cutting process Methods 0.000 claims description 3
- 229920002614 Polyether block amide Polymers 0.000 claims description 2
- 238000009954 braiding Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 19
- 229910001000 nickel titanium Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 210000003813 thumb Anatomy 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 4
- 231100000216 vascular lesion Toxicity 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004417 polycarbonate 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
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical compound NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide 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
- 229910000831 Steel Inorganic materials 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication 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
- 238000009998 heat setting Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000000203 mixture Substances 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
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000570 polyether 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
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 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)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a kind of intravascular stent transportation system and its conduit tube components.A kind of embodiment according to the present invention, the conduit tube component for intravascular stent transportation system may include: outer tube；At least part of inner tube, said inner tube is located in the outer tube, and said inner tube includes metal knitted pipe and the metal tube that connect with the metal knitted pipe；Hangnail is arranged on the metal tube of said inner tube, and the hangnail is configured to that intravascular stent can be moved when said inner tube is mobile relative to outer tube.Since inner tube is made of metal knitted pipe and metal tube, hangnail is arranged on metal tube, the rigidity at hangnail is improved, solves and discounting phenomenon occurs since rigidity is insufficient in the prior art.
Description
Technical field
The present invention relates to medical instruments fields, more particularly, be related to it is a kind of for intravascular stent transportation system and its
Conduit tube component.
Background technique
Stent in the treatment method is performed the operation using the minimally invasive intervention of stent in the treatment, and wound is small, few intercurrent disease, and effect is good, becomes current
The main method for treating periphery hemadostewnosis.
Stent in the treatment method is usually required with transportation system so that intravascular stent to be implanted in vivo.In the prior art, blood
Pipe holder transportation system generally comprises conduit tube component interconnected and handle portion, and conduit tube component generally includes outer tube and interior
Pipe, intravascular stent may be provided between inner tube and outer tube, and outer tube and inner tube are hollow setting, pass through for seal wire；Hand
Shank includes the shell suitable for holding and the driving assembly for driving inner tube to move back and forth, and outer tube is mutually fixed with shell,
Driving assembly is engaged with inner tube operability.
In the course of surgery, doctor reaches operative site using the conduit tube component of seal wire guidance transportation system, operates later
Driving assembly moves axially forward inner tube, to enter blood vessel with bracket, later, bracket is deployable and is supported on blood vessel
Inner wall.
In the prior art, as shown in figure 4,800 ' of inner tube is integrally formed, 900 ' of hangnail is connected on 800 ' of inner tube, this
Sample, in release stent procedures, due to rigid deficiency at hangnail, it is possible to discounting phenomenon occur.
Summary of the invention
In view of above-mentioned technological deficiency, the present invention provides a kind of intravascular stent transportation system and its conduit tube components.
A kind of embodiment according to the present invention, the conduit tube component for intravascular stent transportation system may include:
Outer tube；
At least part of inner tube, said inner tube is located in the outer tube, said inner tube include metal knitted pipe and with
The metal tube of the metal knitted pipe connection；
Hangnail is arranged on the metal tube of said inner tube, and the hangnail is configured to move when said inner tube relative to outer tube
Intravascular stent can be moved when dynamic.
Another embodiment according to the present invention, the intravascular stent transportation system may include:
Shell；
According to the conduit tube component of above embodiment, wherein the outer tube of the conduit tube component is located at the outer of the shell
It portion and is connect with the shell, a part of the inner tube of the conduit tube component is located in the shell, and the inner tube is another
Part is located at the inside of the outer tube；
A part of driving assembly, the driving component is located in the shell, with being located in the shell for said inner tube
It is a part of operability engagement, for driving said inner tube that can be axially moveable in the outer tube.
Using embodiment of the present invention, have the following beneficial effects:
Since inner tube is made of metal knitted pipe and metal tube, hangnail is arranged on metal tube, is improved at hangnail
Rigidity solves and discounting phenomenon occurs since rigidity is insufficient in the prior art.
Detailed description of the invention
Fig. 1 is the stereogram exploded view for showing an example of intravascular stent transportation system of embodiment according to the present invention；
Fig. 2 is the schematic diagram of an example of the inner tube of embodiment according to 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 transportation system of the prior art.
Specific embodiment
It is described in detail to various aspects of the present invention below in conjunction with the drawings and specific embodiments.Wherein, in attached drawing
Component be not necessarily drawn to scale, focus on that the principle of the present invention is illustrated.
In various embodiments of the present invention, well-known structure, material or operation are not shown or do not make specifically
It is bright.Also, described feature, structure or characteristic can combine in any way in one or more embodiments.In addition, this
Field is it will be appreciated by the skilled person that following various embodiments are served only for the guarantor for example, and is not intended to limit the present invention
Protect range.It can also be readily appreciated that, the element or component in each embodiment described herein and shown in the drawings can be by a variety of
Difference configuration is arranged and designs.
With reference to Fig. 1, it illustrates an examples of the intravascular stent transportation system of embodiment according to the present invention.In this example,
For intravascular stent to be delivered to intracorporal transportation system, i.e. intravascular stent transportation system, may include, but be not limited to: by the right side
The shell of half-shell 110 and the composition of left shell half 120, cleaning pipe 300, the conduit group being mainly made of outer tube 200 and inner tube 800
Part and driving assembly 400.
Wherein, the outer tube 200 be located at the shell outside and by adapter piece 600 and tee tube 500 with it is described
The first end 101 of shell connects.Specifically, outer tube 200 is inserted into and extends to the first end 501 with tee tube 500, thus
It is connected to the tee tube 500, and adapter piece 600 is fixed with the shell, for example, right half-shell 110 and left shell half 120 clamp institute
Adapter piece 600 is stated, and is cooperated by nut 121 and connection features 111, right half-shell 110 and left shell half 120 is fixed.Tee tube
500 for cleaning the preceding part (i.e. close to the part of outer tube) of intravascular stent transportation system, as a kind of optional reality
Mode is applied, can be Rule tee tube, it is of course also possible to be other the suitable threeways that can be used for intravascular stent transportation system
Pipe.As shown in Figure 1, tee tube 500 is located at the first end 101 of the shell, which, which can have, extend out to the shell
The first end 501 of outside, the second end 502 that is communicated in the shell and with 501 straight line of first end and be arranged in institute
State between first end 501 and second end 502 and extend out to the third end 503 of the outside of the shell.Wherein, the tee tube
500 first end 501 is connected to and in communication with by adapter piece 600 with outer tube 200.The first end of said inner tube 800 is from the threeway
The second end 502 of pipe 500 is extended through the tee tube 500, stretches out from its first end 501 and enters to the outer tube 200
It is interior.The end at the third end 503 of tee tube 500 has opening and closes the joint cap 522 of the opening.In this way, in intravascular stent
Transmission process in, joint cap 522 close the opening, with preventing humor (i.e. blood) from the opening flow out；It is conveyed in intravascular stent
After, joint cap 522 can be opened, cleaning solution is added by the opening, to the preceding part of intravascular stent transportation system into
Row cleaning.Alternatively, it is convenient to omit tee tube 500, for example, for disposable blood pipe holder transportation system, due to using one
It is secondary to abandon, it is cleaned without using tee tube 500, therefore, such intravascular stent transportation system can not have
Tee tube 500.
Wherein, the cleaning pipe 300 is used to clean intravascular stent transportation system after intravascular stent conveying.
In one embodiment of the invention, cleaning pipe 300 can be integrally formed bipass, for example, by PC (polycarbonate)
The integrally formed Rule bipass of material, connect, and the first end of the cleaning pipe 300 with the second end 102 of the shell
301 are located at the inside of the shell, and second end 302 extend out to the outside of the shell.In one embodiment of the invention,
Connection features 303,304 are provided in cleaning pipe 300, corresponding position is provided with and the connection in the right half-shell 110 of shell
The connection features 113,114 that feature 303,304 cooperates, by the way that connection features 303,304 are embedded into connection features 113,114
In, cleaning pipe 300 is fixed with shell, while by by right half-shell 110 and left shell half 120 in conjunction with to clamp the cleaning pipe
300.In addition, as shown in Figure 1, the end of the second end 302 of the cleaning pipe 300 has opening and closes the joint cap of the opening
320.In this way, in the transmission process of intravascular stent, joint cap 320 closes the opening, with preventing humor (i.e. blood) from the opening
Outflow；After intravascular stent conveying, joint cap 320 can be opened, cleaning solution is added by the opening, it is defeated to intravascular stent
System is sent to be cleaned.Alternatively, it is convenient to omit cleaning pipe 300, for example, for disposable blood pipe holder transportation system, by
It abandons, it is cleaned without using cleaning pipe 300, therefore, such intravascular stent transportation system can in using primary
Not have cleaning pipe 300.
Wherein, a part of said inner tube 800 is located in the shell.The first end (not shown) of inner tube 800 stretches to
The inside of the outer tube 200, in this example, inner tube 800 are inserted through tee tube 500 from the second end 502 of tee tube 500
And it extend into the inner cavity of outer tube 200.The second end of said inner tube can be protruded into from the first end 301 of the cleaning pipe 300
To the lumen of the cleaning pipe 300.
Wherein, a part of the driving component 400 is located in the shell, with said inner tube 800 positioned at the shell
Interior part operation engagement, specifically, driving assembly 400 is mainly made of thumb drives part 401 and guide rail 402, driving
Component 400 is located between the first end and second end of inner tube, wherein the right half-shell 110 of shell by connection features 112,115,
116 connect with driving assembly 400, and nut 121 passes through the hole in the left shell half 120 of shell, and passes through circlip 122 and guide rail 402
On hole, the screw hole 111 extending into right half-shell 110, by the engagement of nut 121 and screw hole 111 by left shell half 120 and it is right partly
Shell 110 is combined together, so that a part of driving assembly 400 is contained in shell, and the thumb drives of driving assembly 400
A part of part 401 is exposed to be manually actuated from shell.Inner tube 800 pass through guide rail 402, and with thumb drives part 401
A part engagement, it is interior under the push-and-pull of thumb drives part 401 when doctor or other operators operate thumb drives part 401
Pipe 800 is moved along guide rail 402, and then is axially moveable said inner tube in the inner cavity of the outer tube and cleaning pipe, tool
For body, the first end of inner tube relatively moves in outer tube 200, so that intravascular stent be made to go forward side by side along the advance of outer tube 200
Enter it is intravascular, it is later, deployable and be supported on blood vessel.At the same time, the second end of inner tube with inner tube overall movement
And it is moved in cleaning pipe 300.
In the conduit tube component of embodiment of the present invention, at least part of inner tube 800 is located in the outer tube 200,
As shown in Fig. 2, one end of inner tube 800 connects conical head (TIP) 1100, the other end passes through inner sleeve 1200, and and inner sleeve
Pipe 1200 connects.Wherein, TIP head 1100 is located at the end of outer tube 200, for guiding the conduit tube component to move in the blood vessels
It is dynamic.The inner sleeve 1200 keeps said inner tube 800 to be axially moveable in the outer tube 200, prevents inner tube 800 in housing
It is bent in pipe 200.Hangnail 900 is provided in said inner tube 800, specifically, hangnail 900 is arranged in inner tube 800
Between intravascular stent assembly area, i.e. inner sleeve 1200 and TIP head 1100.The hangnail 900 can by such as Nitinol it
The elastic material of class is made, and being configured to can be by intravascular stent when said inner tube 800 is mobile relative to outer tube 200
It is moved to vascular lesion position.Specifically, being pushed forward inner tube 800 when hangnail 900 is in outer tube 200, hangnail 900 is grabbed
The inner wall of intravascular stent discharges outward, intravascular stent is moved to vascular lesion position, while hangnail 900 stretches out outer tube 200,
Hangnail 900 is back in outer tube 200 by post-tensioning inner tube 800, and the inner wall for grabbing one section of intravascular stent again releases one again
Section, this movement is until release completely repeatedly.Inner tube can be adapted for the intravascular stent of random length as a result, without according to difference
The intravascular stent of length or different vascular lesion positions customize inner tube, improve the compatibility of intravascular stent transportation system, by
This operation is simplified, and reduces the cost of intravascular stent transportation system, also reduces the treatment cost of patient certainly.
In embodiments of the present invention, it as shown in figure 3, inner tube 800 may include, but is not limited to: metal knitted pipe 801,
The metal tube 802 that is connect with the metal knitted pipe 801, connecting tube 803.803 sets of the connecting tube in the metal tube 802 and institute
The junction of metal knitted pipe 801 is stated, the connecting tube 803 passes through binder (for example, anaerobic adhesive) and the metal knitted pipe
801 and the metal tube 802 be bonded.Metal tube 802 connects TIP head, and metal knitted pipe 801 and the connection of said inner tube 800 are driven
Part (for example, the other metal tube) connection of dynamic component 400.In the preferred embodiment of the present invention, the gold
Belonging to pipe 802 can be NiTi pipe, it is preferable that length of the part of the metal tube 802 connecting with connecting tube 803 along the metal tube
Degree direction can have helical cutting (not shown).When metal tube 802 is Nian Jie with connecting tube 803, binder enters helical cutting
In, increase adhesive strength.Simultaneously when inner tube 800 enters human body bending lesion, passability can be more preferable.
As shown in figure 3, hangnail 900 is arranged on metal tube 802, and abuts with connecting tube 803 or adjoins or connect, preferably
The outer surface of ground, the outer surface of hangnail 900 and connecting tube 803 is continuous and seamlessly transits.In this way, it is possible to reduce on inner tube outer surface
Numbers of steps, reduce step to the adverse effects of intravascular stent conveying operations.In one embodiment of the invention, hangnail
900 include corner 901 and base portion 902, and corner 901 is radially outward expanded in the axial direction of metal tube 802 from base portion 902
Exhibition, that is, using the axis of metal tube 802 as center line radial expansion, the two wedge angle linear distances for being configured to two corners 902 are greater than
The radial dimension of base portion 902, and the diameter of base portion 902 is equal with the diameter of connecting tube 803.Alternatively, hangnail 900 can be with
It is made of the elastic material of such as marmem etc, and through laser welding on the metal tube of inner tube 800, in this way,
The rigidity at hangnail setting is improved, solves and discounting phenomenon occurs since rigidity is insufficient in the prior art.
In an advantageous embodiment, the metal knitted pipe 801 is three-decker, wherein in the three-decker
Internal layer is PTFE (polytetrafluoroethylene (PTFE)) layer, outer layer is PEBAX (block polyether acidamide resin) layer and is located at the internal layer and outer
Middle layer between layer is wire braid, such as stainless steel braided steel wire net.Wherein, the metal tube 802 and the gold
Belonging to woven tube 801 to be fixedly connected includes: that the metal tube 802 and the wire braid of the metal knitted pipe 801 weld, i.e.,
Laser welding of nickel titanium tube and wire braid.
In another preferred embodiment of the invention, it is convenient to omit connecting tube 803, inner tube is by metal knitted pipe and gold
Belong to pipe to constitute.One end of metal tube is connect with metal knitted pipe, and the other end is connect with TIP；One end of metal knitted pipe and gold
Belong to pipe connection, the other end passes through inner sleeve.The one end of the metal tube is inserted into the one end of the metal knitted pipe simultaneously
And the metal tube is fixedly connected with the metal knitted pipe.
It should be noted that being for illustrating thought of the invention, concept or the embodiment of principle above, the present invention is not
It is confined to above-described embodiment.Thought, concept or principle can carry out above-described embodiment those skilled in the art according to the present invention
Various changes obtain more embodiments.
When being made for inner tube of metal knitted pipe, NiTi pipe and connecting tube, when controlling wall thickness, conduit is not influenced
Attachment force between components, using ultra-thin-wall connecting tube, inner tube front end is coupled using the ultra thin wall metallic tube of grinding, after grinding
Wall thickness is 0.02mm, this is that other polymer plastic expects pipes are not achieved.Also, the connection type used: NiTi pipe is inserted into
Into metal establishment pipe, connecting pipe box each half in two pipes, after anaerobic adhesive is coated in connecting tube section inner wall bonding securely, laser
It welds NiTi pipe and metal establishment is managed.In this way, pipe connected pipe wall thickness in effectively controlling, also, inner tube is avoided when pushing repeatedly
The excessive head end for leading to connecting tube of step scrapes bracket, influences to push effect.Gluing combination laser welding, double insurance, even if
Anaerobic adhesive still ensures that the TIP of inner tube will not fall into human body, medical thing occurs by falling off for a long time or rosin joint phenomenon occur
Therefore.
In addition, increasing an elastic NiTi hangnail on the metal tube of inner tube carries out reciprocating push, when hangnail is in outer tube
When interior, the hangnail of NiTi elasticity crawl rack inner wall discharges bracket outward and goes out outer tube to vascular lesion position, while hangnail stretches out
Outer tube, (backing positions are constant) grabs one section of rack inner wall again and releases one section again in post-tensioning hangnail to outer tube, this is dynamic repeatedly
Make until release completely.
Hangnail using NiTi cut heat setting process, expansion be pointed at horn mouth, for 6F pipe sheath (i.e. diameter be 6F housing
Pipe), two wedge angle linear distances are greater than 1.35mm.
In this way, the inner tube that the present invention designs can be unified for a kind of specification, all intravascular stents for meeting 6F pipe sheath, solution are released
Existing general transportation system of having determined needs the problem of according to stent length and diameter customization inner tube length.Also, one-handed performance
The reciprocal small distance of formula pushes repeatedly, and easy to control, feel is stronger.
Term and wording used in description of the invention are just to for example, be not intended to constitute restriction.Ability
Field technique personnel should be appreciated that under the premise of not departing from the basic principle of disclosed embodiment, to above embodiment
In each details can carry out various change.Therefore, protection scope of the present invention is only determined by claim, in the claims,
Unless otherwise indicated, all terms should be understood by the broadest reasonable meaning.
Claims (9)
1. a kind of conduit tube component for intravascular stent transportation system, which is characterized in that the conduit tube component includes:
Outer tube；
At least part of inner tube, said inner tube is located in the outer tube, and said inner tube includes metal knitted pipe and the metal
The metal tube and connecting tube of woven tube connection, connection of the connecting pipe box in the metal tube and the metal knitted pipe
Place, the connecting tube are ultra thin wall metallic tube；
Hangnail is arranged on the metal tube of said inner tube and adjacent with the connecting tube, and the hangnail is configured to work as said inner tube
Intravascular stent can be moved when mobile relative to outer tube.
2. conduit tube component as described in claim 1, which is characterized in that the one end of the metal tube is inserted into the metal and compiles
It knits in the one end of pipe and is fixedly secured to one another.
3. conduit tube component as claimed in claim 2, which is characterized in that the metal knitted pipe is three-decker, wherein in institute
It states that internal layer in three-decker is PTFE layers, outer layer is PEBAX layers and the middle layer between the internal layer and outer layer is gold
Belong to silk braiding layer.
4. conduit tube component as claimed in claim 3, which is characterized in that the metal tube is fixedly connected with the metal knitted pipe
It include: the wire braid welding of the metal tube and the metal knitted pipe.
5. conduit tube component as claimed in claim 4, which is characterized in that the connecting tube by binder with it is described metal knitted
Pipe and metal tube bonding.
6. conduit tube component as claimed in claim 5, which is characterized in that in the portion Nian Jie with the connecting tube of the metal tube
There is helical cutting along the length direction of the metal tube on point.
7. conduit tube component as claimed in claim 5, which is characterized in that the binder includes anaerobic adhesive.
8. conduit tube component as claimed in claim 4, which is characterized in that the welding includes laser welding.
9. a kind of intravascular stent transportation system characterized by comprising
Shell；
According to conduit tube component described in any one of claim 1 to 8, wherein the outer tube of the conduit tube component is located at institute
It states the outside of shell and is connect with the shell, a part of the inner tube of the conduit tube component is located in the shell, and should
Another part of inner tube is located at the inside of the outer tube；
A part of driving assembly, the driving component is located in the shell, with said inner tube positioned at the shell intracorporal one
Part operation engagement, for driving said inner tube that can be axially moveable in the outer tube.
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 |
| 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 |
| EP17781891.1A EP3443940B1 (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 CN107280831A (en) | 2017-10-24 |
| CN107280831B true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11116651B2 (en) | 2016-04-12 | 2021-09-14 | Suzhou Innomed Medical Device Co., Ltd | Vascular stent delivery system and tubing assembly thereof |
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| CN112157366B (en) * | 2020-10-12 | 2024-09-17 | 康迪泰科(北京)医疗科技有限公司 | Medical catheter and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5891236B2 (en) * | 2010-11-17 | 2016-03-22 | ボストン サイエンティフィック サイムド，インコーポレイテッドＢｏｓｔｏｎ Ｓｃｉｅｎｔｉｆｉｃ Ｓｃｉｍｅｄ，Ｉｎｃ． | Stent delivery system |
| CN102038565B (en) * | 2010-12-17 | 2013-08-14 | 北京有色金属研究总院 | Great vascular stent delivery system |
| EP2779945B1 (en) * | 2011-11-15 | 2021-07-14 | Boston Scientific Scimed, Inc. | Medical device with keyed locking structures |
| CN102488577B (en) * | 2011-12-14 | 2014-12-24 | 湖南埃普特医疗器械有限公司 | Intravascular guiding wire positioning device and manufacturing method thereof |
| US9011513B2 (en) * | 2012-05-09 | 2015-04-21 | Abbott Cardiovascular Systems Inc. | Catheter having hydraulic actuator |
| CN203647541U (en) * | 2013-12-27 | 2014-06-18 | 常州乐奥医疗科技有限公司 | Novel support conveying system |
| CN104546246A (en) * | 2015-01-04 | 2015-04-29 | 苏州英络医疗器械有限公司 | Vascular stent conveying system and conveying method thereof |
| CN204428220U (en) * | 2015-01-04 | 2015-07-01 | 苏州英络医疗器械有限公司 | A kind of intravascular stent induction system |
| CN107280830B (en) * | 2016-04-12 | 2019-02-01 | 苏州茵络医疗器械有限公司 | Intravascular stent transportation system and its conduit tube component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11116651B2 (en) | 2016-04-12 | 2021-09-14 | Suzhou Innomed Medical Device Co., Ltd | Vascular stent delivery system and tubing assembly thereof |
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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 |
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