DE484468T1 - Endovaskuläre elektrolytisch abtrennbare führungsdrahtspitze. - Google Patents

Endovaskuläre elektrolytisch abtrennbare führungsdrahtspitze.

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Publication number
DE484468T1
DE484468T1 DE0484468T DE91905194T DE484468T1 DE 484468 T1 DE484468 T1 DE 484468T1 DE 0484468 T DE0484468 T DE 0484468T DE 91905194 T DE91905194 T DE 91905194T DE 484468 T1 DE484468 T1 DE 484468T1
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DE
Germany
Prior art keywords
guidewire
tip
distal tip
electrolytically
distal
Prior art date
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Pending
Application number
DE0484468T
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English (en)
Inventor
Guido Los Angeles Ca 90049 Guglielmi
Ivan Redwood City Ca 94063 Sepetka
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University of California
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University of California
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23957367&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE484468(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by University of California filed Critical University of California
Publication of DE484468T1 publication Critical patent/DE484468T1/de
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
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    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
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    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/1214—Coils or wires
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    • A61B17/1214—Coils or wires
    • A61B17/1215—Coils or wires comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
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    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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    • A61B2017/1205—Introduction devices
    • A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
    • A61B2017/12063—Details concerning the detachment of the occluding device from the introduction device electrolytically detachable
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    • A—HUMAN NECESSITIES
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    • A61B18/1206—Generators therefor
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    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
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    • A—HUMAN NECESSITIES
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    • A61M25/00—Catheters; Hollow probes
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    • A61M25/09—Guide wires
    • A61M2025/09175—Guide wires having specific characteristics at the distal tip

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
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  • Neurosurgery (AREA)
  • Biophysics (AREA)
  • Surgical Instruments (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Fishing Rods (AREA)
  • Supports For Plants (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Claims (23)

91905194.6 The Regents of the University of California
1. Verfahren zur Bildung eines Thrombus innerhalb eines Gefäßhohlraumes, in welchem Blut vorhanden ist, umfassend die Schritte:
Endovaskuläres Anordnen eines Führungsdrahtes nahe einer endovaskulären Öffnung in den Gefäßhohlraum;
Anordnen einer distalen Spitze des Führungsdrahtes in dem Gefäßhohlraum;
Anlegen eines ersten elektrischen Signals an die distale Spitze innerhalb des Gefäßhohlraumes, um innerhalb des Gefäßhohlraumes einen Thrombus um die distale Spitze zu bilden; und
elektrolytisches Lösen der distalen Spitze von dem Führungsdraht, um die distale Spitze innerhalb des Gefäßhohlraumes und des elektrisch innerhalb des Gefäßhohlraumes geformten Thrombus zu belassen,
wodurch die elektrische Bildung eines Thrombus vollständig endovaskulär gebildet wird.
2. Verfahren nach Anspruch 1, bei welchem der Schritt des Anordnens der distalen Spitze in dem Gefäßhohlraum ferner den Schritt umfaßt, daß der Gefäßhohlraum im wesentlichen von der distalen Spitze eingenommen wird.
3. Verfahren nach Anspruch 2, bei welchem der Schritt, bei welchem der Gefäßhohlraum im wesentlichen eingenommen wird, den Schritt des Füllens des Gefäßhohlraumes mit einem langen und biegsamen Abschnitt der distalen Spitze umfaßt.
4. Verfahren nach Anspruch 1, bei welchem der Schritt des Lösens der distalen Spitze vom Führungsdraht den Schritt des elektrolytischen Lösens der distalen Spitze von dem Führungsdraht umfaßt.
5. Verfahren nach Anspruch 4, bei welchem der Schritt des elektrolytischen Lösens der distalen Spitze von dem Führungsdraht den Schritt des elektrolytischen Zersetzens wenigstens eines Abschnittes eines Verbindungssegments, das sich zwi-0 sehen dem Führungsdraht und der distalen Spitze erstreckt, umfaßt.
6. Verfahren nach Anspruch 5, bei welchem der Schritt des elektrolytischen Zersetzens des Verbindungssegments den Schritt des elektrolytischen Abkorrodierens wenigstens eines Abschnittes eines Wendelsegments umfaßt.
7. Verfahren nach Anspruch 6, bei welchem der Schritt des elektrolytischen Korrodierens des Wendelsegments den Schritt 0 des elektrolytischen Zersetzens eines Wendelsegments aus rostfreiem Stahl umfaßt.
8. Verfahren nach Anspruch 1, bei welchem der Schritt des Anlegens eines elektrischen Signals an die distale Spitze zur Bildung des Thrombus den Schritt des Anlegens eines positiven Gleichstromes für eine erste vorbestimmte Zeitdauer umfaßt.
9. Verfahren nach Anspruch 1, bei welchem der Schritt des Lösens der distalen Spitze von dem Führungsdraht den Schritt des Anlegens eines positiven Gleichstromes für eine zusatz Iiehe vorbestimmte Zeitdauer umfaßt.
10. Verfahren nach Anspruch 8, bei welchem der Schritt des Lösens der distalen Spitze von dem Führungsdraht den Schritt des Anlegens eines positiven Gleichstromes für eine zusatzIiehe vorbestimmte Zeitdauer getrennt von der ersten vorbestimmten Zeitdauer umfaßt.
11. Verfahren nach Anspruch 8, bei welchem bei dem Schritt des Lösens die Stelle des Lösens der Spitze von dem Führungsdraht während der ersten vorbestimmten Zeitdauer nicht mit Blut in Berührung kommt und während der zusätzlichen vorbestimmten Zeitdauer mit Blut in Berührung kommt.
12. Führungsdraht zur Verwendung bei der Elektrothrombose, verwendet in Kombination mit einem Mikrokatheter, umfassend:
einen Kerndraht, welcher Kerndraht einen distalen Abschnitt hat, welcher in Blut elektrolytisch zersetzbar ist; und
5 einen Spitzenabschnitt, der mit dem distalen Abschnitt des Kerndrahtes gekoppelt ist, welcher Spitzenabschnitt für das endovaskuläre Einführen in einen Gefäßhohlraum,
wodurch eine endovaskuläre Elektrothrombose durchgeführt werden kann.
13. Führungsdraht nach Anspruch 12, bei welchem der distale Abschnitt ein freiliegendes Segment aus rostfreiem Stahl ist.
14. Führungsdraht nach Anspruch 13, bei welchem das Segment aus rostfreiem Stahl eine Wendel umfaßt, die an ihrem
proximalen Ende mit dem Kerndraht verbunden ist und an ihrem distalen Ende mit dem Spitzenabschnitt des Führungsdrahtes verbunden ist.
15. Führungsdraht nach Anspruch 14, bei welchem der Kerndraht sich in einem fadenartigen Abschnitt konzentrisch innerhalb der Wendel aus rostfreiem Stahl von dem distalen Ende der Wendel aus rostfreiem Stahl zu der Stelle erstreckt, wo die Wendel aus rostfreiem Stahl mit dem Spitzenabschnitt des Führungsdrahtes verbunden ist.
16. Führungsdraht nach Anspruch 14, bei welchem die Wendel eine Innenraum definiert, welcher Innenraum frei und unverstärkt ist.
17. Führungsdraht nach Anspruch 12, bei welchem der Spitzenabschnitt ein langes und im wesentlichen biegsames Segment ist und aus einem Metall besteht, welches nicht in Blut elektrolytisch zersetzbar ist.
18. Führungsdraht nach Anspruch 12, bei welchem der Spitzenabschnitt aus 479 Platinlegierung besteht.
19. Führungsdraht nach Anspruch 17, bei welchem das lange und biegsame Segment eine Länge hat, die ausreicht, um den Gefäßhohlraum im wesentlichen zu füllen, wenn es in diesen eingeführt ist.
20. Führungsdraht nach Anspruch 17, bei welchem das lange und biegsame Segment vorgespannt ist, um eine Helix zu bilden, wenn es aus dem Mikrokatheter ausgefahren ist.
21. Führungsdraht nach Anspruch 20, bei welchem die Helix eine konische Umhüllende hat.
22. Führungsdraht nach Anspruch 20, bei welchem die Helix
— D -
eine zylindrische Umhüllende hat.
23. Verfahren nach Anspruch 1, bei welchem der Schritt des
Anordnens der Spitze den Schritt des Anordnens des Führungsdrahtes in einer ersten Position bezüglich des Gefäßhohlraums umfaßt, so daß ein zersetzbarer Abschnitt der Spitze von dem Blut während des Anlegens des ersten elektrischen Signals an die Spitze isoliert bleibt, und bei welchem der Schritt des Lösens das Bewegen des zersetzbaren Abschnitts der Spitze in eine zweite Position, in der der zersetzbare Abschnitt mit
dem Blut in Berührung kommt, das Anlegen eines zweiten elektrischen Signals an den zersetzbaren Abschnitt umfaßt, um den zersetzbaren Abschnitt in dem Blut elektrolytisch aufzulösen.
DE0484468T 1990-03-13 1991-01-03 Endovaskuläre elektrolytisch abtrennbare führungsdrahtspitze. Pending DE484468T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/492,717 US5122136A (en) 1990-03-13 1990-03-13 Endovascular electrolytically detachable guidewire tip for the electroformation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas
PCT/US1991/000057 WO1991013592A1 (en) 1990-03-13 1991-01-03 Endovascular electrolytically detachable guidewire tip

Publications (1)

Publication Number Publication Date
DE484468T1 true DE484468T1 (de) 1996-01-04

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DE69131466T Expired - Lifetime DE69131466T2 (de) 1990-03-13 1991-01-03 Endovaskuläre elektrolytisch abtrennbare Führungsdrahtspitze
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AU636217B2 (en) 1993-04-22
CA2055492A1 (en) 1991-09-14
EP0484468A1 (de) 1992-05-13
EP0804905A1 (de) 1997-11-05
HU219694B (hu) 2001-06-28
DE69131467T2 (de) 1999-11-11
ATE181225T1 (de) 1999-07-15
US5925037A (en) 1999-07-20
ATE431722T1 (de) 2009-06-15
ATE182261T1 (de) 1999-08-15
EP0914803B1 (de) 2003-07-23
JP2501389B2 (ja) 1996-05-29
EP0804904A1 (de) 1997-11-05
EP0484468A4 (en) 1994-07-20
HUT68240A (en) 1995-06-28
DE69133297T2 (de) 2004-06-03
FI915332A0 (fi) 1991-11-12
US5895385A (en) 1999-04-20
US5928226A (en) 1999-07-27
EP0484468B1 (de) 1999-06-16
EP0800790A3 (de) 1997-10-29
DE69131340T3 (de) 2006-05-11
DE69131467D1 (de) 1999-08-26
EP0804905B1 (de) 1999-07-21
DE69131466D1 (de) 1999-08-26
CA2055492C (en) 2000-11-14
DE69131340D1 (de) 1999-07-22
EP1329196A1 (de) 2003-07-23
US5947963A (en) 1999-09-07
EP0914803A1 (de) 1999-05-12
ES2074406T1 (es) 1995-09-16
EP1329196B1 (de) 2009-05-20
ATE182260T1 (de) 1999-08-15
EP0800790B1 (de) 1999-07-21
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HU9103536D0 (en) 1992-04-28
WO1991013592A1 (en) 1991-09-19
DE69133616D1 (de) 2009-07-02
DE69133297D1 (de) 2003-08-28
GR980300008T1 (en) 1998-03-31
ATE245391T1 (de) 2003-08-15
DK0804905T3 (da) 1999-11-29
EP0484468B2 (de) 2005-10-19
DK0484468T3 (da) 1999-11-22
US5122136A (en) 1992-06-16
KR100200441B1 (en) 1999-06-15
DK0800790T3 (da) 1999-11-29
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AU7447491A (en) 1991-10-10
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