DE822789T1 - Doppelt unterstütztes intraluminales transplantat - Google Patents
Doppelt unterstütztes intraluminales transplantatInfo
- Publication number
- DE822789T1 DE822789T1 DE0822789T DE96911474T DE822789T1 DE 822789 T1 DE822789 T1 DE 822789T1 DE 0822789 T DE0822789 T DE 0822789T DE 96911474 T DE96911474 T DE 96911474T DE 822789 T1 DE822789 T1 DE 822789T1
- Authority
- DE
- Germany
- Prior art keywords
- radially expandable
- tubular
- intraluminal graft
- tubular member
- biocompatible
- 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.)
- Pending
Links
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 claims 15
- 230000000712 assembly Effects 0.000 claims 5
- 238000000429 assembly Methods 0.000 claims 5
- -1 polytetrafluoroethylene Polymers 0.000 claims 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 5
- 230000004962 physiological condition Effects 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 239000000560 biocompatible material Substances 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
Classifications
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Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Claims (22)
1. Radial expandierbarer, doppelt gestützter intraluminer Graft, umfassend:
ein erstes, radial expandierbares röhrenförmiges Stützelement;
ein zweites, radial expandierbares, röhrenförmiges Stützelement, das ein erstes und zweites jeweils
gegenüberliegendes Ende hat und konzentrisch bezüglich des ersten radial expandierbaren, röhrenförmigen
Stützelements positioniert ist/ und
ein expandiertes röhrenförmiges Polytetrafluorethylen-Element,
das zwischen das erste und zweite radial expandierbare, röhrenförmige Stützelement platziert ist,
wobei es ein erstes und zweites gegenüberliegendes Ende hat, die mit dem ersten und zweiten gegenüberliegenden
Ende des zweiten radial expandierbaren, röhrenförmigen Stützelements verbunden sind.
2. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 1, wobei das erste und zweite radial
expandierbare röhrenförmige Stützelement aus einem biokompatiblen Material gefertigt sind, das aus der Gruppe
ausgewählt ist, "die aus Silber, Titan, rostfreiem Stahl und Gold besteht.
3. Radial expandierbarer, doppelt gestützter intraluminer
Graft nach Anspruch 1, wobei expandiertes Polytetrafluorethylen durch eine mikroporöse
MikroStruktur gekennzeichnet ist, die einen durchschnittlichen Abstand zwischen den Knoten im
Bereich von 10 bis 90 Mikron hat.
4. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 1, wobei mindestens eines von dem
ersten und zweiten gegenüberliegenden Ende des expandierten röhrenförmigen Polytetrafluorethylen-Elements
nach außen gedreht über das erste und zweite Ende des zweiten radial expandierbaren, röhrenförmig
geformten Stützelements gefaltet sind, so dass das erste und zweite gegenüberliegende Ende des zweiten radial
expandierbaren, röhrenförmigen Stützelements ringförmig durch das expandierte röhrenförmige
Polytetrafluorethylen-Element bedeckt sind und das erste und zweite Ende des expandierten röhrenförmigen
Polytetrafluorethylenelements bezüglich des ersten und zweiten Endes des zweiten radial expandierbaren,
röhrenförmigen Stützelements gestützt sind.
5. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 4, wobei das mindestens eine
zurückgefaltete erste und zweite Ende des expandierten röhrenförmigen Polytetrafluorethylen-Elements ein Stück
von bis zu einer halben Länge des zweiten röhrenförmig geformten Stützelements umfasst.
6. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 1, wobei das zweite röhrenförmige
Stützelement weiter ein erstes und zweites radial expandierbares Ringelement umfasst, die in einem
beabstandeten Verhältnis zueinander an den ersten und
zweiten Enden jeweils des ersten röhrenförmig geformten Stützelements platziert sind.
7. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 6, wobei das erste und zweite Ende
des expandierten röhrenförmigen Polytetrafluorethylen-Elements
nach außen gedreht auf äußere Oberflächen des ersten und zweiten radial expandierbaren Ringelements
gefaltet sind, die dadurch mindestens teilweise durch das nach außen gefaltete erste und zweite Ende des
expandierten röhrenförmigen Polytetrafluorethylen-Materials
umschlossen sind.
8. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 7, wobei das nach außen gefaltete
erste und zweite Ende des expandierten röhrenförmigen Polytetrafluorethylen-Elements jeweils ein Stück von bis
zu einer Hälfte einer Länge des ersten und zweiten radial expandierbaren Ringelements umfassen.
9. Radial expandierbarer, doppelt gestützter intraluminer
Graft nach Anspruch 6, wobei das erste radial expandierbare röhrenförmig geformte Stützelement ein
erstes und zweites radial expandierbares Ringelement umfasst, die konzentrisch um das erste und zweite radial
expandierbare Ringelement positioniert sind, die das zweite radial expandierbare röhrenförmige Stützelement
umfassen und das expandierte röhrenförmige Polytetrafluorethylen-Element weiter ein Zwischengebiet
entlang einer Längsachse des intraluminen Grafts umfasst, der weder durch das erste noch zweite radial
expandierbare Ringelement gestützt ist, die sowohl das erste als auch das zweite radial expandierbare,
röhrenförmige Stützelement umfassen.
10. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 9, wobei das expandierte
röhrenförmige Polytetrafluorethylen-Element nach außen gefaltet das erste und zweite radial expandierbare
Ringelement ist, die das zweite radial expandierbare
röhrenförmige Stützelement umfassen.
röhrenförmige Polytetrafluorethylen-Element nach außen gefaltet das erste und zweite radial expandierbare
Ringelement ist, die das zweite radial expandierbare
röhrenförmige Stützelement umfassen.
11. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 9, weiter umfassend mindestens ein
Paar von konzentrisch positionierten, radial
expandierbaren zylindrischen Stützelementen, die
zwischen dem ersten und zweiten radial expandierbaren
Ringelement positioniert sind, die sowohl das erste als auch das zweite radial expandierbare, röhrenförmige
Stützelement umfassen und in einem beabstandeten
Verhältnis dazu sind, wobei das expandierte
röhrenförmige Polytetrafluorethylen-Element zwischen das Paar von konzentrisch positionierten, radial
expandierbaren, zylindrischen Stützelementen platziert ist.
expandierbaren zylindrischen Stützelementen, die
zwischen dem ersten und zweiten radial expandierbaren
Ringelement positioniert sind, die sowohl das erste als auch das zweite radial expandierbare, röhrenförmige
Stützelement umfassen und in einem beabstandeten
Verhältnis dazu sind, wobei das expandierte
röhrenförmige Polytetrafluorethylen-Element zwischen das Paar von konzentrisch positionierten, radial
expandierbaren, zylindrischen Stützelementen platziert ist.
12. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 11, wobei das erste und zweite Ende
des expandierten röhrenförmigen Polytetrafluorethylen-Elements nach außen gedreht mit dem ersten und zweiten
Ringelement von sowohl dem ersten als auch dem zweiten radial expandierbaren röhrenförmigen Stützelement
verbunden sind.
verbunden sind.
13. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 1, wobei das erste und zweite radial
expandierbare, röhrenförmige Stützelement jeweils eine Vielzahl von konzentrischen Paaren von Stützelementen
umfassen, die koaxial ausgerichtet sind und in einem
beabstandeten Verhältnis miteinander entlang einer
Längsachse des intraluminen Grafts sind, und wobei das
umfassen, die koaxial ausgerichtet sind und in einem
beabstandeten Verhältnis miteinander entlang einer
Längsachse des intraluminen Grafts sind, und wobei das
„.i t» »*
DE/ EP O 822 789 T1
expandierte röhrenförmige Polytetrafluorethylen-Element
zwischen die Vielzahl von konzentrischen Paaren von Stützelementen platziert ist und davon zurückgehalten
wird, wodurch eine Flexibilität entlang der Längsachse des intraluminen Grafts vorgesehen wird.
14. Radial expandierbarer, doppelt gestützter intraluminer
Graft nach Anspruch 13, wobei das erste und zweite Ende des röhrenförmigen Polytetrafluorethylen-Elements nach
außen gefaltete erste und zweite Enden von gegenüberliegenden Endpaaren der Vielzahl von
konzentrischen Paaren von Stützelementen sind, die sowohl das erste als auch das zweite zylindrisch
geformte Stützelement umfassen.
15. Verfahren zum Herstellen eines röhrenförmigen, radial expandierbaren, doppelt gestützten intraluminen Grafts,
umfassend die Schritte:
a) Positionieren eines expandierten, röhrenförmigen Polytetrafluorethylen-Elements, das eine mikroporöse
MikroStruktur von Knoten hat, die durch Fibrillen konzentrisch über und in direktem Kontakt mit einem
ersten radial expandierbaren Stentelement verbunden sind;
b) konzentrisch Positionieren eines zweiten, radial expandierbaren Stentelements über und in direktem
Kontakt mit dem expandierten röhrenförmigen Polytetrafluorethylen-Element; und
c) Aufbringen eines positiven Drucks auf das biokompatible, flexible, röhrenförmige Element und das erste und zweite
röhrenförmig geformte Stützelement, so dass das expandierte, röhrenförmige Polytetrafluorethylen-Element,
das erste radial expandierbare Stentelement,
/FPO 022 784 Tl
und das zweite radial expandierbare Stentelement voneinander unter physiologischen Zuständen nicht
trennbar sind.
16. Verfahren nach Anspruch 15, weiter umfassend den Schritt des nach außen Drehens von mindestens einem Ende des
expandierten röhrenförmigen Polytetrafluorethylen-Elements
über und auf eine äußere Endoberfläche von mindestens einem Ende des zweiten röhrenförmig geformten
Stützelements, und dabei Bedecken von dem mindestens einen Ende des zweiten röhrenförmig geformten
Stützelements mit dem nach außen gedrehten mindestens einen Ende des expandierten röhrenförmigen
Polytetrafluorethylen-Elements.
17. Radial expandierbarer, doppelt gestützter, intraluminer Graft nach Anspruch 1, wobei das erste und zweite radial
expandierbare, röhrenförmige Stützelement aus einem biokompatiblen Kunststoff gefertigt sind, der eine
ausreichende Umfangsspannung und radiale Elastizität
hat, um eine gleichmäßige radiale Expansion ohne einem radialen Einbruch unter physiologischen Zuständen zu
ermöglichen.
18. Radial expandierbarer, doppelt gestützter intraluminer Graft, umfassend:
ein biokompatibles, flexibles röhrenförmiges Element, das ein erstes Ende, ein zweites Ende, eine innere
Oberfläche und eine äußere Oberfläche hat;
eine erste, röhrenförmig geformte Stützanordnung, die mindestens zwei zylindrisch geformte Stützelemente
umfasst, die konzentrisch in bezug aufeinander positioniert sind an einem ersten Ende des
biokompatiblen, flexiblen, röhrenförmigen Elements,
DE/FPO 822789T1
wobei eines von den mindestens zwei zylindrisch geformten Stützelementen in direktem Kontakt mit einer
inneren Oberfläche des biokompatiblen, flexiblen, röhrenförmigen Elements ist und ein zweites der
mindestens zwei zylindrisch geformten Stützelemente in direktem Kontakt mit der äußeren Oberfläche des
biokompatiblen, flexiblen, röhrenförmigen Elements ist;
eine zweite röhrenförmig geformte Stützanordnung, die mindestens zwei zylindrisch geformte Stützelemente
umfasst, die konzentrisch in bezug aufeinander positioniert sind an dem zweiten Ende des
biokompatiblen, flexiblen, röhrenförmigen Elements, wobei eines der mindestens zwei zylindrisch geformten
Stützelemente in direktem Kontakt mit einer inneren Oberfläche des biokompatiblen, flexiblen, röhrenförmigen
Elements ist, und ein zweites der mindestens zwei zylindrisch geformten Stützelemente in direktem Kontakt
mit der äußeren Oberfläche des biokompatiblen, flexiblen, röhrenförmigen Elements ist; und
eine dritte röhrenförmig geformte Stützanordnung, die mindestens zwei zylindrisch geformte Stützelemente
umfasst, die konzentrisch in bezug aufeinander postioniert sind zwischen dem ersten und zweiten Ende
des biokompatiblen, flexiblen, röhrenförmigen Elements, wobei eines der mindestens zwei zylindrisch geformten
Stützelemente in direktem Kontakt mit einer inneren Oberfläche des biokompatiblen, flexiblen, röhrenförmigen
Elements ist und ein zweites der mindestens zwei zylindrisch geformten Stützelemente in direktem Kontakt
mit der äußeren Oberfläche des biokompatiblen, flexiblen, röhrenförmigen Elements ist.
19. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 18, wobei der mindestens eine
Bereich des ersten und zweiten Endes des biokompatiblen, flexiblen, röhrenförmigen Elements nach außen gefaltet
über die erste und zweite zylindrisch geformte Stützanordnung ist, so dass eine der mindestens zwei
zylindrisch geformten Stützelemente, die sowohl die erste als auch die zweite zylindrisch geformte
Stützanordnung umfassen, mindestens teilweise durch die nach außen gedrehten Bereiche des biokompatiblen,
flexiblen, röhrenförmigen Elements bedeckt ist.
20. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 19, wobei die nach außen gedrehten
Bereiche des biokompatiblen, flexiblen, röhrenförmigen Elements jeweils eine Länge von weniger oder gleich etwa
einer Hälfte der Longitudinallänge der ersten und zweiten zylindrisch geformten Stützanordnungen umfassen.
21. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 20, wobei jede der ersten, zweiten
und dritten zylindrischen Stützanordnungen im wesentlichen äquidistant entlang einer Längsachse des
biokompatiblen, flexiblen, röhrenförmigen Elements positioniert sind.
22. Radial expandierbarer, doppelt gestützter intraluminer Graft nach Anspruch 21, wobei eines der ersten und
zweiten zylindrischen Elemente von jeweils der ersten und zweiten zylindrischen Stützanordnung im wesentlichen
eingeschlossen innerhalb der nach außen gedrehten ersten und zweiten Enden des biokompatiblen, flexiblen,
röhrenförmigen Elements ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/430,970 US5667523A (en) | 1995-04-28 | 1995-04-28 | Dual supported intraluminal graft |
PCT/US1996/004293 WO1996033672A1 (en) | 1995-04-28 | 1996-04-02 | Dual supported intraluminal graft |
Publications (1)
Publication Number | Publication Date |
---|---|
DE822789T1 true DE822789T1 (de) | 2000-08-31 |
Family
ID=23709880
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69635951T Expired - Fee Related DE69635951T2 (de) | 1995-04-28 | 1996-04-02 | Doppelt unterstütztes intraluminales transplantat |
DE0822789T Pending DE822789T1 (de) | 1995-04-28 | 1996-04-02 | Doppelt unterstütztes intraluminales transplantat |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69635951T Expired - Fee Related DE69635951T2 (de) | 1995-04-28 | 1996-04-02 | Doppelt unterstütztes intraluminales transplantat |
Country Status (8)
Country | Link |
---|---|
US (1) | US5667523A (de) |
EP (1) | EP0822789B1 (de) |
JP (1) | JPH11508152A (de) |
AU (1) | AU696410B2 (de) |
CA (1) | CA2217606A1 (de) |
DE (2) | DE69635951T2 (de) |
ES (1) | ES2146558T1 (de) |
WO (1) | WO1996033672A1 (de) |
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JPH11508152A (ja) | 1999-07-21 |
EP0822789A4 (de) | 2001-10-17 |
AU5435396A (en) | 1996-11-18 |
DE69635951D1 (de) | 2006-05-11 |
ES2146558T1 (es) | 2000-08-16 |
CA2217606A1 (en) | 1996-10-31 |
US5667523A (en) | 1997-09-16 |
EP0822789B1 (de) | 2006-03-22 |
EP0822789A1 (de) | 1998-02-11 |
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