DE29624229U1 - System zum elektrochirurgischen Schneiden und Ablation bzw. Ablösung - Google Patents
System zum elektrochirurgischen Schneiden und Ablation bzw. AblösungInfo
- Publication number
- DE29624229U1 DE29624229U1 DE29624229U DE29624229U DE29624229U1 DE 29624229 U1 DE29624229 U1 DE 29624229U1 DE 29624229 U DE29624229 U DE 29624229U DE 29624229 U DE29624229 U DE 29624229U DE 29624229 U1 DE29624229 U1 DE 29624229U1
- Authority
- DE
- Germany
- Prior art keywords
- electrode
- fluid
- active electrode
- shaft
- active
- 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.)
- Expired - Lifetime
Links
- 238000002679 ablation Methods 0.000 title claims 3
- 239000007788 liquid Substances 0.000 claims abstract 12
- 239000000523 sample Substances 0.000 claims abstract 7
- 230000008878 coupling Effects 0.000 claims abstract 3
- 238000010168 coupling process Methods 0.000 claims abstract 3
- 238000005859 coupling reaction Methods 0.000 claims abstract 3
- 239000012530 fluid Substances 0.000 claims 23
- 238000010992 reflux Methods 0.000 claims 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 4
- 239000011159 matrix material Substances 0.000 claims 3
- 239000000919 ceramic Substances 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 239000011521 glass Substances 0.000 claims 2
- 229910010272 inorganic material Inorganic materials 0.000 claims 2
- 239000011147 inorganic material Substances 0.000 claims 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 239000011780 sodium chloride Substances 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229910052697 platinum Inorganic materials 0.000 claims 1
- 238000004381 surface treatment Methods 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
Classifications
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Description
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Claims (33)
1. Elektrochirurgisches System (11) zur Verwendung mit einer Hochfrequenz-Energie-
bzw. Leistungszufuhr (28) und einer Zufuhr für ein elektrisch leitfähiges Fluid bzw.
Flüssigkeit, wobei das System aufweist:
eine elektrochirurgische Sonde (10) mit einem Schaft (13) mit einem proximalen Ende und einem distalen Ende, eine aktive Elektrode (12) ist nahe dem distalen Ende angeordnet, und ein Konnektor bzw. Verbindungselement (19) nahe dem proximalen Ende des Schaftes zum elektrischen Koppeln der aktiven Elektrode mit der elektrochirurgischen Energie- bzw. Leistungsversorgung;
eine Rückflusselektrode (55, 56), welche geeignet ist, dass sie elektrisch mit der elektrochirurgischen Energie- bzw. Leistungsversorgung gekoppelt werden kann,
gekennnzeichnet durch eine Vorrichtung, welche einen Weg für ein elektrisch leitfähiges Fluid bzw. Flüssigkeit definiert zwischen der Rückflusselektrode und der aktiven Elektrode, so dass der Fluss des elektrisch leitfähigen Fluids bzw. Flüssigkeit einen Stromflussweg zwischen den Elektroden schließt bzw. vervollständigt.
eine elektrochirurgische Sonde (10) mit einem Schaft (13) mit einem proximalen Ende und einem distalen Ende, eine aktive Elektrode (12) ist nahe dem distalen Ende angeordnet, und ein Konnektor bzw. Verbindungselement (19) nahe dem proximalen Ende des Schaftes zum elektrischen Koppeln der aktiven Elektrode mit der elektrochirurgischen Energie- bzw. Leistungsversorgung;
eine Rückflusselektrode (55, 56), welche geeignet ist, dass sie elektrisch mit der elektrochirurgischen Energie- bzw. Leistungsversorgung gekoppelt werden kann,
gekennnzeichnet durch eine Vorrichtung, welche einen Weg für ein elektrisch leitfähiges Fluid bzw. Flüssigkeit definiert zwischen der Rückflusselektrode und der aktiven Elektrode, so dass der Fluss des elektrisch leitfähigen Fluids bzw. Flüssigkeit einen Stromflussweg zwischen den Elektroden schließt bzw. vervollständigt.
2. System nach Anspruch 1, wobei die Rückflusselektrode (56) einen Teil des Schaftes
der elektrochirurgischen Sonde bildet.
3. System nach Anspruch 2, weiter umfassend ein isolierendes Element (78) zwischen
der aktiven Elektrode (12) und der Rückflusselektrode (56), wobei die
Rückflusselektrode ausreichend beabstandet bzw. entfernt ist von der aktiven
Elektrode, um den direkten Kontakt zwischen der Rückflusselektrode und einer
Körperstruktur bei der Zielstelle zu minimieren, wenn die aktive Elektrode in
großer bzw. enger Nähe oder im teilweisen Kontakt mit der Körperstruktur
positioniert ist.
4. System nach Anspruch 2, wobei die Rückflusselektrode ein inneres röhrenförmiges
Element (55) ist und die Vorrichtung zum Definieren eines Fluid- bzw.
Flüssigkeits-Weges einen axialen Hohlraum bzw. Lumen (57) aufweist innerhalb
der Rückflusselektrode, wobei der axiale Hohlraum bzw. Lumen mindestens einen
Teil des Fluid-Weges bildet und eine Einlass hat, welcher in Kommunikation bzw.
Verbindung steht mit der Zufuhr für eine elektrisch leitfähige Flüssigkeit und einen
Auslass aufweist, welcher in fluider bzw. fließender Verbindung mit der aktiven
Elektrode steht.
5. System nach Anspruch 2, wobei die Rückflusselektrode ein äußeres röhrenförmiges
Element (56) ist, wobei der Schaft weiter ein isolierendes Element (78) aufweist,
wobei die Vorrichtung zur Definition des Fluids- bzw. Fließ-Weges einen axialen
Durchgang aufweist zwischen dem isolierenden Element und der
Rückflusselektrode, der axiale Durchgang bildet mindestens einen Teil des Fluid-
Weges und hat einen Einlass in fluider bzw. fließender Verbindung bzw.
Kommunikation mit der Zuführ für die elektrisch leitfähige Flüssigkeit und einen
Auslass in fluider bzw. fließender und elektrischer Verbindung bzw.
Kommunikation mit der aktiven Elektrode.
6. System nach Anspruch 1, weiter aufweisend ein Instrument zum Zuführen eines
Fluids bzw. Flüssigkeit (64), welches von der elektrochirurgischen Sonde getrennt
ist, wobei die Rückflusselektrode (55) einen Teil des Instruments zum Zuführen des
Fluides bildet.
7. System nach Anspruch 6, wobei die Rückflusselektrode ein röhrenförmiges Element
(55) ist, welches einen axialen Hohlraum bzw. Lumen (83) darin definiert, wobei
der axiale Hohlraum bzw. Lumen elektrisch mit dem röhrenförmigen Element
verbunden ist und einen Einlass aufweist, welcher in Kommunikation bzw.
Verbindung steht mit der Flüssigkeitszufuhr und einen Auslass zum Abgeben bzw.
Entladen des elektrisch leitfähigen Fluides bzw. Flüssigkeit (50) in Richtung auf die
aktive Elektrode.
8. System nach einem der vorhergehenden Ansprüche, wobei die aktive Elektrode ein
Elektrodenfeld aufweist, welches nahe dem distalen Ende des Schaftes angeordnet
ist, wobei das Feld eine Mehrzahl von elektrisch isolierten bzw. getrennten
Elektrodenanschlüssen (58) aufweist, welche über einer Kontaktoberfläche verteilt
bzw. angeordnet sind.
9. System nach einem der vorhergehenden Ansprüche mit mindestens zwei
Elektrodenanschlüssen.
10. System nach einem der vorhergehenden Ansprüche weiter aufweisend ein
strombegrenzendes Element zum Regeln bzw. Steuern des Stromflusses durch die
aktive Elektrode, um eine Leistungsstreuung bzw. Verlustleistung in das Medium,
welches die Zielstelle umgibt, zu verhindern bzw. zu unterbinden.
11. System nach einem der vorhergehenden Ansprüche weiter aufweisend eine
isolierende Matrix (48), welche den oder die, bevorzugt mindestens zwei,
Elektrodenanschluss bzw. Elektrodenanschlüsse umgibt und trägt bzw. stützt, um
elektrisch einen proximalen Teil des bzw. der Elektrodenanschlüsse von dem
elektrisch leitfähigen Fluid zu isolieren bzw. zu trennen, wobei die isolierende
Matrix ein anorganisches Material aufweist.
12. System nach Anspruch 11, wobei das anorganische Material ausgewählt wird aus
der Gruppe, welche im Wesentlichen besteht aus Keramik, Glas und Glas/Keramik-
Zusammensetzungen.
13. System nach einem der vorhergehenden Ansprüche, wobei das elektrisch leitfähige
Fluid eine Saline bzw. Salzlösung aufweist.
14. System nach einem der vorhergehenden Ansprüche, weiter aufweisend einen
Temperatursensor benachbart zu bzw. angrenzend an die aktive Elektrode, und eine
Vorrichtung zum Regeln bzw. Steuern des angelegten Stromes in Reaktion auf bzw.
Abhängigkeit von der erfassten bzw. gemessenen Temperatur.
15. System nach einem der vorhergehenden Ansprüche, wobei die aktive Elektrode und
die Rückflusselektrode so ausgelegt sind, dass beim Anlegen einer ausreichenden
Spannung dazwischen die Ablation bzw. Abtragung von Gewebe benachbart zu
bzw. angrenzend an den Elektrodenanschluss bewirkt wird, so dass ein Teil des
Gewebes volumetrisch bzw. räumlich entfernt wird.
16. System nach einem der vorhergehenden Ansprüche, wobei die Rückflusselektrode
proximal zu der aktiven Elektrode auf der elektrochirurgischen Sonde angeordnet
ist.
17. System nach einem der vorhergehenden Ansprüche umfassend einen Hohlraum
bzw. Lumen (57) zum Leiten bzw. Führen eines Fluids in Richtung auf die aktive
Elektrode bevor es die Rückflusselektrode kontaktiert.
18. System nach einem der vorhergehenden Ansprüche, welches so ausgelegt ist, dass
ein Fluid über bzw. jenseits von und im elektrischen Kontakt mit der
Rückflusselektrode in Richtung auf die aktive Elektrode geleitet bzw. geführt wird.
19. System nach einem der vorhergehenden Ansprüche, umfassend die Hochfrequenz-
Leistungs- bzw. Energiequelle, welche eine Betriebsfrequenz von ungefähr 50 bis
2000 kHz hat.
20. System nach Anspruch 19, wobei die Hochfrequenz-Energiequelle eine
Betriebsfrequenz von weniger als ungefähr 400 kHz aufweist.
21. Elektrochirurgisches System (11) zur Verwendung mit einer Hochfrequenz-Energie-
bzw. Leistungsquelle (28) und einer Zufuhr für eine elektrisch leitfähige Flüssigkeit
bzw. Fluid, wobei das System aufweist:
einen elektrochirurgische Sonde (10) mit einem Schaft (13) mit einem proximalen Ende und einem distalen Ende, eine aktive Elektrode (12) ist nahe dem distalen Ende angeordnet, und ein Konnektor bzw. Verbindungselement (19) ist nahe dem proximalen Ende des Schaftes angeordnet zum elektrischen Koppeln der aktiven Elektrode mit der elektrochirurgischen Energie- bzw. Leistungszuführ;
eine Rückflusselektrode (56), welche geeignet bzw. ausgelegt ist, so dass sie elektrisch mit der elektrochirurgischen Leistungszufuhr gekoppelt werden kann, ein isolierendes Element (78) zwischen der aktiven Elektrode (12) und der Rückflusselektrode (56);
eine Vorrichtung, welche einen Weg für ein elektrisch leitfähiges Fluid zwischen der Rückflusselektrode und der aktiven Elektrode definiert, so dass der Fluss des elektrisch leitfähigen Fluides einen Stromflussweg zwischen den Elektroden schließt bzw. vervollständigt; wobei
die Rückflusselektrode von der aktiven Elektrode beabstandet ist um den direkten Kontakt zwischen der Rückflusselektrode und einer Körperstruktur bei der Zielstelle zu minimieren, wenn die aktive Elektrode in enger bzw. großer Nähe oder im teilweisen Kontakt mit der Körperstruktur positioniert ist.
einen elektrochirurgische Sonde (10) mit einem Schaft (13) mit einem proximalen Ende und einem distalen Ende, eine aktive Elektrode (12) ist nahe dem distalen Ende angeordnet, und ein Konnektor bzw. Verbindungselement (19) ist nahe dem proximalen Ende des Schaftes angeordnet zum elektrischen Koppeln der aktiven Elektrode mit der elektrochirurgischen Energie- bzw. Leistungszuführ;
eine Rückflusselektrode (56), welche geeignet bzw. ausgelegt ist, so dass sie elektrisch mit der elektrochirurgischen Leistungszufuhr gekoppelt werden kann, ein isolierendes Element (78) zwischen der aktiven Elektrode (12) und der Rückflusselektrode (56);
eine Vorrichtung, welche einen Weg für ein elektrisch leitfähiges Fluid zwischen der Rückflusselektrode und der aktiven Elektrode definiert, so dass der Fluss des elektrisch leitfähigen Fluides einen Stromflussweg zwischen den Elektroden schließt bzw. vervollständigt; wobei
die Rückflusselektrode von der aktiven Elektrode beabstandet ist um den direkten Kontakt zwischen der Rückflusselektrode und einer Körperstruktur bei der Zielstelle zu minimieren, wenn die aktive Elektrode in enger bzw. großer Nähe oder im teilweisen Kontakt mit der Körperstruktur positioniert ist.
22. System nach einem der vorhergehenden Ansprüche mit einem isolierender Mantel,
welcher die Rückflusselektrode umgibt, um den direkten Kontakt zwischen der
Rückflusselektrode und dem Körpergewebe zu minimieren.
23. System nach einem der vorhergehenden Ansprüche, wobei die oder jede Elektrode
aus einem Draht gebildet ist.
24. System nach Anspruch 23, wobei der Draht ein Metall aufweist, welches
ausgewählt wird aus Titan, Platin und Legierungen davon.
25. System nach einem der vorhergehenden Ansprüche, welche geeignet bzw.
angepasst ist zur Verwendung bei der Anwesenheit einer isotonischen Salzlösung
bzw. Saline als das leitfähige Fluid.
26. System nach einem der vorhergehenden Ansprüche, wobei die oder jede Elektrode
in einer elektrisch isolierenden Matrix befestigt ist.
27. System nach einem der vorhergehenden Ansprüche, wobei der Schaft im
Wesentlichen gerade ist und die aktiven Elektroden auf dem distalen Ende des
Schaftes befestigt bzw. angeordnet sind.
28. System nach einem der Ansprüche 1 bis 26, wobei der Schaft gebogen bzw.
gekrümmt ist.
29. System nach einem der Ansprüche 1 bis 26, wobei die aktiven Elektroden auf einer
Seitenoberfläche des Schaftes vorgesehen bzw. angeordnet sind.
30. System nach einem der vorhergehenden Ansprüche, geeignet bzw. angepasst für
eine Oberflächenbehandlung eines Patienten.
31. System nach einem der vorhergehenden Ansprüche, wobei der oder jeder
Elektrodenanschluss einen im Wesentlichen kreisförmigen Abschnitt aufweist.
32. System nach einem der vorhergehenden Ansprüche, wobei jeder
Elektrodenanschluss eine Kontaktfläche in dem Bereich von 0,0001 bis 1 mm2
aufweist.
33. System nach einem der vorhergehenden Ansprüche, wobei der Schaft einen im
Wesentlichen kreisförmigen Abschnitt aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/485,219 US5697281A (en) | 1991-10-09 | 1995-06-07 | System and method for electrosurgical cutting and ablation |
PCT/US1996/008077 WO1996039914A1 (en) | 1995-06-07 | 1996-05-30 | System and method for electrosurgical cutting and ablation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29624229U1 true DE29624229U1 (de) | 2001-08-23 |
Family
ID=23927359
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69637965T Expired - Lifetime DE69637965D1 (de) | 1995-06-07 | 1996-05-30 | System zum elektrochirugischen Schneiden und Ablation |
DE69616327T Expired - Lifetime DE69616327T2 (de) | 1995-06-07 | 1996-05-30 | Anordung zum Schneiden und zur elektrochirurgischen Ablation |
DE69638343T Expired - Lifetime DE69638343D1 (de) | 1995-06-07 | 1996-05-30 | System zur elektrochirurgischen Inzision und Ablation |
DE29624229U Expired - Lifetime DE29624229U1 (de) | 1995-06-07 | 1996-05-30 | System zum elektrochirurgischen Schneiden und Ablation bzw. Ablösung |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69637965T Expired - Lifetime DE69637965D1 (de) | 1995-06-07 | 1996-05-30 | System zum elektrochirugischen Schneiden und Ablation |
DE69616327T Expired - Lifetime DE69616327T2 (de) | 1995-06-07 | 1996-05-30 | Anordung zum Schneiden und zur elektrochirurgischen Ablation |
DE69638343T Expired - Lifetime DE69638343D1 (de) | 1995-06-07 | 1996-05-30 | System zur elektrochirurgischen Inzision und Ablation |
Country Status (8)
Country | Link |
---|---|
US (2) | US5697281A (de) |
EP (3) | EP2057954B1 (de) |
JP (1) | JP2912023B2 (de) |
AT (2) | ATE207331T1 (de) |
AU (1) | AU706294B2 (de) |
CA (1) | CA2221330C (de) |
DE (4) | DE69637965D1 (de) |
WO (1) | WO1996039914A1 (de) |
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- 1996-05-30 DE DE69637965T patent/DE69637965D1/de not_active Expired - Lifetime
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- 1996-05-30 CA CA002221330A patent/CA2221330C/en not_active Expired - Lifetime
- 1996-05-30 DE DE69616327T patent/DE69616327T2/de not_active Expired - Lifetime
- 1996-05-30 WO PCT/US1996/008077 patent/WO1996039914A1/en active IP Right Grant
- 1996-05-30 AT AT96917868T patent/ATE207331T1/de not_active IP Right Cessation
- 1996-05-30 DE DE69638343T patent/DE69638343D1/de not_active Expired - Lifetime
- 1996-05-30 JP JP9500864A patent/JP2912023B2/ja not_active Expired - Lifetime
- 1996-05-30 AT AT00123324T patent/ATE435610T1/de not_active IP Right Cessation
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Also Published As
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EP0837647A1 (de) | 1998-04-29 |
ATE207331T1 (de) | 2001-11-15 |
DE69616327D1 (de) | 2001-11-29 |
DE69616327T2 (de) | 2002-06-27 |
DE69637965D1 (de) | 2009-08-20 |
EP1080682B1 (de) | 2009-07-08 |
EP0837647A4 (de) | 1998-07-01 |
EP2057954A1 (de) | 2009-05-13 |
EP1080682A1 (de) | 2001-03-07 |
EP2057954B1 (de) | 2011-03-16 |
US5697536A (en) | 1997-12-16 |
CA2221330C (en) | 2000-02-15 |
JPH10510745A (ja) | 1998-10-20 |
AU6026696A (en) | 1996-12-30 |
ATE435610T1 (de) | 2009-07-15 |
DE69638343D1 (de) | 2011-04-28 |
JP2912023B2 (ja) | 1999-06-28 |
CA2221330A1 (en) | 1996-12-19 |
AU706294B2 (en) | 1999-06-10 |
EP0837647B1 (de) | 2001-10-24 |
US5697281A (en) | 1997-12-16 |
WO1996039914A1 (en) | 1996-12-19 |
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