CN110604633B - Vascular stent coating film with integrally variable structure and manufacturing method thereof - Google Patents
Vascular stent coating film with integrally variable structure and manufacturing method thereof Download PDFInfo
- Publication number
- CN110604633B CN110604633B CN201910993366.6A CN201910993366A CN110604633B CN 110604633 B CN110604633 B CN 110604633B CN 201910993366 A CN201910993366 A CN 201910993366A CN 110604633 B CN110604633 B CN 110604633B
- Authority
- CN
- China
- Prior art keywords
- stent
- blood vessel
- artificial blood
- coating
- thickness
- 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
- 239000011248 coating agent Substances 0.000 title claims abstract description 47
- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 230000002792 vascular Effects 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 42
- 239000002473 artificial blood Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000009941 weaving Methods 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 5
- 210000002489 tectorial membrane Anatomy 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 238000009954 braiding Methods 0.000 description 4
- 230000003394 haemopoietic effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007012 clinical effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
-
- 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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0029—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in bending or flexure capacity
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter
Landscapes
- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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)
Abstract
The invention discloses a vascular stent coating with an integrated variable structure and a manufacturing method thereof, comprising an artificial blood vessel and a stent coating which are connected without gaps, wherein the stent coating is of a fabric structure woven by polyester filaments, and the thickness of the stent coating is about 50% of the thickness of the artificial blood vessel. According to the invention, a weaving method is adopted to manufacture a seamless integrated structure with an artificial blood vessel and a stent coating, and the density of warp and weft yarns is adjusted during weaving, so that on one hand, the diameter of the coating is changed to form a variable-diameter shape, and on the other hand, the thickness of the coating part of the stent section is reduced, thus not only improving the bending performance of the blood vessel stent, but also being beneficial to compressing the stent coating into a thinner delivery sheath.
Description
Technical Field
The invention belongs to the field of artificial blood vessels, and particularly relates to a vascular stent coating with an integrated variable structure and a manufacturing method thereof.
Background
The covered stent in the prior art is a covered stent formed by suturing a stent section and a covered membrane, and the covered membrane is fixed on normal vascular walls at two ends of a lesion by utilizing the low permeability of the covered membrane and the supporting function of the stent, so that blood flows in the covered membrane to be isolated from a tumor cavity and the false cavity is thrombosed, thereby realizing the effect of treating the lesion vascular.
The further artificial vascular stent is a covered stent with a human hematopoietic tube end, and can be anastomosed with a blood vessel of a human body in clinic, but the current aortic covered stent used for clinic is mostly made of PET materials, but because the covered membranes of the human hematopoietic tube section and the stent section adopt the same structure, the stent section has harder texture after covered suturing due to larger thickness of the covered membrane, is difficult to bend and is not easy to compress into a thinner conveying sheath. When the tectorial membrane of the support section part adopts a mode with lower thickness, the tectorial membrane needs to be sutured with an artificial blood vessel part, so that a more obvious suture superposition part can be generated, the thickness of the part is increased, thrombus is easy to form at a suture part, and hidden danger is brought to clinical effects while the production difficulty of a product is increased.
Disclosure of Invention
In view of the above problems, the present invention provides a stent graft of an integrally variable structure and a method for manufacturing the same.
The technical aim is achieved, and the technical effects are achieved by the following technical scheme:
a vascular stent coating with an integrated variable structure comprises an artificial blood vessel and a stent coating which are connected without gaps, wherein the stent coating is of a fabric structure woven by polyester filaments, and the thickness of the stent coating is about 50% of the thickness of the artificial blood vessel.
As a further improvement of the invention, the thickness of the artificial blood vessel is 0.300-0.350 mm.
As a further improvement of the invention, the thickness of the stent coating is 0.150-0.200 mm.
As a further improvement of the present invention, the artificial blood vessel and the stent graft have different diameters.
As a further improvement of the invention, the diameter of the stent-graft is smaller than the diameter of the artificial blood vessel, and the diameter of the stent-graft decreases linearly and uniformly within a certain length range from the connecting position of the stent-graft and the artificial blood vessel.
As a further improvement of the invention, the artificial hematopoietic tube section is a fabric with a satin structure, and the bracket section coating is a fabric with a plain weave structure.
As a further improvement of the invention, the warp and weft yarn density of the stent section coating is smaller than that of the artificial blood vessel section.
A method for braiding a vascular stent with an integrally variable structure as described above by using polyester filaments includes braiding a satin weave structure as an artificial vascular part by a weave method of up and down of 6, then reducing the number of yarns by a jacquard control method and braiding a plain weave structure as a stent-covering part by a weave method of up and down of 1, and the densities of warp and weft yarns in the braiding process are adjusted according to the thickness and diameter of the artificial vascular part or the stent-covering part.
The invention has the beneficial effects that: according to the invention, a weaving method is adopted to manufacture a seamless integrated structure with an artificial blood vessel and a stent coating, and the density of warp and weft yarns is adjusted during weaving, so that on one hand, the diameter of the coating is changed to form a variable-diameter shape, and on the other hand, the thickness of the coating part of the stent section is reduced, thus not only improving the bending performance of the blood vessel stent, but also being beneficial to compressing the stent coating into a thinner delivery sheath.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
wherein: 1-artificial blood vessel, 2-stent coating.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The principle of application of the invention is described in detail below with reference to the accompanying drawings.
The vascular stent coating structure with an integrated variable structure shown in fig. 1 comprises an artificial blood vessel 1 and a stent coating 2 which are connected without gaps, and the connecting part between the artificial blood vessel 1 and the stent coating 2 does not need to be sewed and has no excessively thick folding and wrinkling by adopting a fabric structure woven by polyester filaments. The artificial blood vessel 1 and the stent coating 2 with different tissue structures can be woven through different weaving methods, wherein the artificial blood vessel 1 section is a fabric with a satin structure, and the stent coating 2 section is a fabric with a plain structure.
The thickness of the stent coating 2 is about 50% of the thickness of the artificial blood vessel 1. In the present invention, the thickness of the artificial blood vessel 1 in the vascular stent coating film with the integrated variable structure is 0.300 mm-0.350 mm. The thickness of the stent coating 2 is 0.150 mm-0.200 mm. By reducing the thickness of the stent graft 2 to be sutured with the stent segments, localized excessive thickness at the site of the suture is avoided.
The diameter of the stent coating 2 is smaller than that of the artificial blood vessel 1, and in order to ensure the gapless connection between the stent coating 2 and the artificial blood vessel, the diameter of the stent coating 2 is linearly and uniformly reduced within a certain length range from the connection position of the stent coating 2 and the artificial blood vessel. For example, in one embodiment of the invention, the length of the manufactured artificial blood vessel 1 part is 100mm, the length of the stent section covered part is 100mm, the diameter of the artificial blood vessel 1 part is 33mm, the inner diameter of the stent section covered part is uniformly changed from 32mm to 30mm at a distance of 50mm by taking the connecting position of the stent section covered part and the stent section covered part as the starting end, and the diameter of the stent section covered part is stabilized at 30mm at 50mm at the rear end. A stent graft 2 of finer diameter may also be obtained, facilitating compression into a finer delivery sheath.
The structure can be manufactured by changing the densities of warp and weft yarns of the artificial blood vessel 1 part or the stent coating 2 part according to the thickness and diameter requirements in the manufacturing process, and the specific manufacturing steps of one embodiment of the invention are as follows:
(1) Yarn selection: the warp yarn adopts 2 40D yarns to be doubled and twisted for 300 twists/m, and the weft yarn adopts 4 40 yarns to be doubled and twisted for 200 twists/m.
(2) The 792 yarns are used and divided into 48 reed, the 6 up and down weave method is adopted, the warp yarn density is 180ends/inch, the weft yarn density is 170 meshes/inch, the satin structure of the part of the artificial blood vessel 1 is woven, and the length of the woven part of the artificial blood vessel 1 is 100mm, and the diameter is 33mm.
(3) The number of yarns is reduced to 396 by jacquard control, a 1-over-1 weaving method is adopted to weave a plain weave structure of a bracket film 2 part with the warp density of 100ends/inch and the weft density of 100 meshes/inch, the total length of the bracket film 2 part is 100mm, the diameter of the bracket film 2 part is 32mm at the starting point, and the diameter is uniformly reduced to 30mm within the range of 50mm.
(4) After weaving, carrying out subsequent steps such as cleaning, drying, heat setting and the like to obtain the finally required tubular vascular stent coating 2.
The thickness of the artificial blood vessel 1 part in the vascular stent coating 2 obtained by measurement after the weaving is finished is 0.334mm, the thickness of the stent section coating part is 176mm, and the thickness of the stent section coating part is reduced by 50 percent compared with the thickness of the artificial blood vessel 1 part.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A vascular stent coating of an integral variable structure, which is characterized in that: comprises an artificial blood vessel and a bracket tectorial membrane which are connected without gaps, wherein the bracket tectorial membrane is of a fabric structure woven by polyester filaments, and the thickness of the bracket tectorial membrane is 50% of the thickness of the artificial blood vessel;
the diameters of the artificial blood vessel and the stent coating are different, the diameter of the stent coating is smaller than that of the artificial blood vessel, and the diameter of the stent coating is linearly and uniformly reduced in the range from the connecting position of the two to the midpoint position;
the artificial blood vessel is a fabric with a satin structure, and the bracket coating is a fabric with a plain structure; the warp and weft yarn density of the stent coating is smaller than that of the artificial blood vessel;
the satin weave structure is woven by adopting a weaving method of up and down 6 and is used as an artificial blood vessel part, then the number of yarns is reduced by a jacquard control method, and the plain weave structure is woven by adopting a weaving method of up and down 1 and is used as a stent covering part, and the density of warp and weft yarns in the weaving process is regulated according to the thickness and the diameter of the artificial blood vessel part or the stent covering part.
2. A stent graft of unitary variable construction according to claim 1, wherein: the thickness of the artificial blood vessel is 0.300 mm-0.350 mm.
3. A stent graft according to claim 1 or 2, wherein: the thickness of the stent coating is 0.150 mm-0.200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993366.6A CN110604633B (en) | 2019-10-18 | 2019-10-18 | Vascular stent coating film with integrally variable structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993366.6A CN110604633B (en) | 2019-10-18 | 2019-10-18 | Vascular stent coating film with integrally variable structure and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110604633A CN110604633A (en) | 2019-12-24 |
| CN110604633B true CN110604633B (en) | 2024-03-05 |
Family
ID=68893072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910993366.6A Active CN110604633B (en) | 2019-10-18 | 2019-10-18 | Vascular stent coating film with integrally variable structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110604633B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463243B (en) * | 2020-03-11 | 2023-08-18 | 浙江脉通智造科技(集团)有限公司 | Artificial blood vessel and preparation method thereof |
| CN111544170B (en) * | 2020-05-13 | 2021-12-10 | 东华大学 | Anti-slip narrow-resistance esophageal stent with mesoporous structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008052422A1 (en) * | 2006-10-31 | 2008-05-08 | Ning Wen | Stent valve with stent and biovalve woven integrally and manufacturing method thereof |
| CN104689379A (en) * | 2015-02-15 | 2015-06-10 | 东华大学 | Woven integrally formed blood vessel covered stent and preparation method thereof |
| WO2015090237A1 (en) * | 2013-12-20 | 2015-06-25 | 微创神通医疗科技（上海）有限公司 | Vascular stent and method for manufacturing same |
| CN105105867A (en) * | 2015-07-16 | 2015-12-02 | 东华大学 | Integrally-molded woven blood vessel covered stent and preparation method thereof |
| JP2018175776A (en) * | 2017-04-21 | 2018-11-15 | グンゼ株式会社 | Covered stent |
| CN109106468A (en) * | 2018-08-14 | 2019-01-01 | 江苏百优达生命科技有限公司 | A kind of artificial blood vessel structure that can improve compliance |
| CN211381984U (en) * | 2019-10-18 | 2020-09-01 | 江苏百优达生命科技有限公司 | Vascular stent tectorial membrane of integrative variable structure |
-
2019
- 2019-10-18 CN CN201910993366.6A patent/CN110604633B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008052422A1 (en) * | 2006-10-31 | 2008-05-08 | Ning Wen | Stent valve with stent and biovalve woven integrally and manufacturing method thereof |
| WO2015090237A1 (en) * | 2013-12-20 | 2015-06-25 | 微创神通医疗科技（上海）有限公司 | Vascular stent and method for manufacturing same |
| CN104689379A (en) * | 2015-02-15 | 2015-06-10 | 东华大学 | Woven integrally formed blood vessel covered stent and preparation method thereof |
| CN105105867A (en) * | 2015-07-16 | 2015-12-02 | 东华大学 | Integrally-molded woven blood vessel covered stent and preparation method thereof |
| JP2018175776A (en) * | 2017-04-21 | 2018-11-15 | グンゼ株式会社 | Covered stent |
| CN109106468A (en) * | 2018-08-14 | 2019-01-01 | 江苏百优达生命科技有限公司 | A kind of artificial blood vessel structure that can improve compliance |
| CN211381984U (en) * | 2019-10-18 | 2020-09-01 | 江苏百优达生命科技有限公司 | Vascular stent tectorial membrane of integrative variable structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110604633A (en) | 2019-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2136858B1 (en) | Woven fabric with shape memory element strands | |
| US5282846A (en) | Ravel-resistant, self-supporting woven vascular graft | |
| JPWO2019131148A1 (en) | Medical textiles | |
| CN101610738B (en) | Woven aortic sinus prosthesis having a bulb | |
| US5178630A (en) | Ravel-resistant, self-supporting woven graft | |
| US6814754B2 (en) | Woven tubular graft with regions of varying flexibility | |
| CN110604633B (en) | Vascular stent coating film with integrally variable structure and manufacturing method thereof | |
| EP2550943A1 (en) | Repair material for conduit of living body | |
| JPS62152470A (en) | Tubular organ prosthetic material | |
| EP2519189B1 (en) | Endoluminal device with kink-resistant regions | |
| JP6518066B2 (en) | Medical high density fabric | |
| CN211381984U (en) | Vascular stent tectorial membrane of integrative variable structure | |
| CN111134920A (en) | Close net support | |
| JP7499865B2 (en) | Artificial blood vessel and method for producing same | |
| WO2021082389A1 (en) | Coated structure, coated tube, preparation method for coated tube, and covered stent | |
| CN211094991U (en) | Blood vessel covered stent capable of reducing blood seepage at suture position | |
| CN211595912U (en) | Tectorial membrane structure, tectorial membrane pipe and tectorial membrane support | |
| CN113518599B (en) | Endovascular prosthesis | |
| JP2003079743A (en) | Stent and graft with stent | |
| JP2006026155A (en) | Tubular prosthesis | |
| CN118001462A (en) | Artificial blood vessel woven based on high molecular yarns and preparation method thereof | |
| CN1522676A (en) | Machine knitting artificial pleat-free blood vessel and its making method | |
| WO2000051524A1 (en) | Ultra-thin low porosity endovascular graft | |
| JP2002360615A (en) | Artificial blood vessel | |
| JPH10328214A (en) | Artificial blood vessel for stent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |