WO2023284595A1 - Endoprothèse médicale - Google Patents
Endoprothèse médicale Download PDFInfo
- Publication number
- WO2023284595A1 WO2023284595A1 PCT/CN2022/104018 CN2022104018W WO2023284595A1 WO 2023284595 A1 WO2023284595 A1 WO 2023284595A1 CN 2022104018 W CN2022104018 W CN 2022104018W WO 2023284595 A1 WO2023284595 A1 WO 2023284595A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stent
- thick
- inner layer
- outer layer
- medical
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 4
- 210000004204 blood vessel Anatomy 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000009941 weaving Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000004323 axial length Effects 0.000 description 7
- 210000001715 carotid artery Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical class [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 208000006170 carotid stenosis Diseases 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 206010007687 Carotid artery stenosis Diseases 0.000 description 1
- 208000032382 Ischaemic stroke Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000007889 carotid angioplasty Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 210000005259 peripheral blood Anatomy 0.000 description 1
- 239000011886 peripheral blood Substances 0.000 description 1
- ZONODCCBXBRQEZ-UHFFFAOYSA-N platinum tungsten Chemical compound [W].[Pt] ZONODCCBXBRQEZ-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 210000003270 subclavian artery Anatomy 0.000 description 1
- 210000002385 vertebral artery Anatomy 0.000 description 1
Images
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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
Abstract
Une endoprothèse médicale comprend une couche externe d'endoprothèse (1) et une couche interne d'endoprothèse (2). La couche externe d'endoprothèse (1) est un corps tubulaire recouvrant la couche interne d'endoprothèse (2) et formé par de premiers filaments tissés. La couche interne d'endoprothèse (2) comprend un filament épais (21) et une structure de filament fin (22) qui ont des directions de spirale opposées et la même direction d'extension. La structure de filament fin (22) a de multiples anneaux entrelacés (101) agencés en séquence le long de la direction d'extension. Le filament épais (21) pénètre à travers les anneaux entrelacés (101). La couche externe d'endoprothèse (1) est utilisée pour recouvrir la plaque. De plus, la couche interne d'endoprothèse (2) formée par le filament épais s'étendant en spirale (21) et la structure de filament fin (22) a d'excellentes propriétés mécaniques, une grande force radiale, une résistance à la déformation et une flexibilité élevée, et peut ainsi étendre en continu des vaisseaux sanguins rétrécis. De plus, étant donné que le filament épais (21) pénètre à travers les anneaux entrelacés (101) de la structure de filament fin (22), la structure de filament fin (22) peut également fournir un espace de déplacement pour le filament épais (21) pendant le pliage tout en fixant le filament épais (21), et peut également empêcher la déformation de l'endoprothèse provoquée par un déplacement excessif du filament épais (21).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796298.1 | 2021-07-14 | ||
| CN202110796298.1A CN115624423A (zh) | 2021-07-14 | 2021-07-14 | 医疗支架 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023284595A1 true WO2023284595A1 (fr) | 2023-01-19 |
Family
ID=84902699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/104018 WO2023284595A1 (fr) | 2021-07-14 | 2022-07-06 | Endoprothèse médicale |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115624423A (fr) |
| WO (1) | WO2023284595A1 (fr) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849037A (en) * | 1995-04-12 | 1998-12-15 | Corvita Corporation | Self-expanding stent for a medical device to be introduced into a cavity of a body, and method for its preparation |
| US5957974A (en) * | 1997-01-23 | 1999-09-28 | Schneider (Usa) Inc | Stent graft with braided polymeric sleeve |
| US20010003801A1 (en) * | 1997-01-31 | 2001-06-14 | Thomas O. Hoover | Stent for treating pathological body vessels |
| JP2001212246A (ja) * | 2000-02-07 | 2001-08-07 | Shimadzu Corp | 生体内分解性ステント |
| WO2012110414A1 (fr) * | 2011-02-14 | 2012-08-23 | Acandis Gmbh & Co Kg | Dispositif médical comprenant un treillis métallique expansible |
| CN102727332A (zh) * | 2011-04-14 | 2012-10-17 | 朝日英达科株式会社 | 支架 |
| US20150320542A1 (en) * | 2014-05-08 | 2015-11-12 | Secant Medical, Inc. | Composite lumen with reinforcing textile and matrix |
| CN107427377A (zh) * | 2015-01-12 | 2017-12-01 | 微仙美国有限公司 | 支架 |
| JP2018000794A (ja) * | 2016-07-07 | 2018-01-11 | ニプロ株式会社 | ステント |
| CN109890323A (zh) * | 2016-10-27 | 2019-06-14 | 急速医疗有限公司 | 编织丝线管腔内装置 |
| CN112386364A (zh) * | 2020-11-10 | 2021-02-23 | 苏州中天医疗器械科技有限公司 | 混合编织支架 |
-
2021
- 2021-07-14 CN CN202110796298.1A patent/CN115624423A/zh active Pending
-
2022
- 2022-07-06 WO PCT/CN2022/104018 patent/WO2023284595A1/fr unknown
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849037A (en) * | 1995-04-12 | 1998-12-15 | Corvita Corporation | Self-expanding stent for a medical device to be introduced into a cavity of a body, and method for its preparation |
| US5957974A (en) * | 1997-01-23 | 1999-09-28 | Schneider (Usa) Inc | Stent graft with braided polymeric sleeve |
| US20010003801A1 (en) * | 1997-01-31 | 2001-06-14 | Thomas O. Hoover | Stent for treating pathological body vessels |
| JP2001212246A (ja) * | 2000-02-07 | 2001-08-07 | Shimadzu Corp | 生体内分解性ステント |
| WO2012110414A1 (fr) * | 2011-02-14 | 2012-08-23 | Acandis Gmbh & Co Kg | Dispositif médical comprenant un treillis métallique expansible |
| CN102727332A (zh) * | 2011-04-14 | 2012-10-17 | 朝日英达科株式会社 | 支架 |
| US20150320542A1 (en) * | 2014-05-08 | 2015-11-12 | Secant Medical, Inc. | Composite lumen with reinforcing textile and matrix |
| CN107427377A (zh) * | 2015-01-12 | 2017-12-01 | 微仙美国有限公司 | 支架 |
| JP2018000794A (ja) * | 2016-07-07 | 2018-01-11 | ニプロ株式会社 | ステント |
| CN109890323A (zh) * | 2016-10-27 | 2019-06-14 | 急速医疗有限公司 | 编织丝线管腔内装置 |
| CN112386364A (zh) * | 2020-11-10 | 2021-02-23 | 苏州中天医疗器械科技有限公司 | 混合编织支架 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115624423A (zh) | 2023-01-20 |
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