DE19751108A1 - Elektrochirurgisches Operationswerkzeug - Google Patents
Elektrochirurgisches OperationswerkzeugInfo
- Publication number
- DE19751108A1 DE19751108A1 DE1997151108 DE19751108A DE19751108A1 DE 19751108 A1 DE19751108 A1 DE 19751108A1 DE 1997151108 DE1997151108 DE 1997151108 DE 19751108 A DE19751108 A DE 19751108A DE 19751108 A1 DE19751108 A1 DE 19751108A1
- Authority
- DE
- Germany
- Prior art keywords
- switch
- tool
- tool according
- current
- bipolar
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 description 5
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1402—Probes for open surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/00296—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00973—Surgical instruments, devices or methods pedal-operated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/0091—Handpieces of the surgical instrument or device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/1253—Generators therefor characterised by the output polarity monopolar
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/126—Generators therefor characterised by the output polarity bipolar
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
Die Erfindung betrifft ein elektrochirurgisches Operations
werkzeug zum Einsatz im Gebiet der Elektrochirurgie (Diather
mie) die bei verschiedenen chirurgischen Operationsverfahren
eingesetzt wird, bei offenen ebenso wie bei sogenannten lapa
roskopischen Operationen.
Elektrochirurgische Operationswerkzeuge werden bislang als mo
nopolare oder bipolare Werkzeuge konzipiert. Bei monopolaren
Werkzeugen ist die Konfiguration so gewählt, daß eine separate
Neutral-Elektrode mit dem Patienten verbunden ist, wobei sich
nur ein elektrischer Pol an dem Werkzeug befindet. Dahingegen
ist die Konfiguration eines bipolaren Werkzeugs derart, daß
sich beide elektrischen Pole an dem Werkzeug befinden. Monopo
lare wie bipolare Elektrochirurgie-Werkzeuge bieten dem Opera
teur jeweils bestimmte Vor- und Nachteile. Bei bestimmten chi
rurgischen Eingriffen ist es sinnvoll, beide elektrochirurgi
schen Operationswerkzeugtypen einzusetzen. Üblich ist ein häu
figer Wechsel der beiden Operationsmethoden und der entspre
chenden elektrochirugischen Instrumente.
In der DE 196 50 150 A1 ist eine bipolare elektrochirurgische
Schere beschrieben. Dadurch ist diese Schere besonders dazu
geeignet, nach dem Schnitt auftretende Blutungen durch einen
elektrochirurgischen Strom (Koagulation) zu stillen (Hämosta
se).
Die DE 39 37 700 A1 beschreibt eine bipolare Koagulationspin
zette, die zum Einschalten des elektrochirurgischen Stromes
mit einem Schalter an den Pinzettenschenkeln ausgerüstet ist.
Es ist weiter zur punktuellen Koagulation bei lokalen Blutun
gen als Alternative zum zusätzlichen Einsatz monoplarer Werk
zeuge vorgeschlagen worden, die Scherenblätter einer bipolaren
Schere zusammenzuhalten, so daß der Stromfluß zwischen den bei
den Scherenblättern lokal begrenzt ist.
Je weiter bei den bipolaren Operationswerkzeugen die Schenkel
auseinanderstehen, desto stärker ist der elektrische Wider
stand des zu verödenden Gewebes. Die dementsprechende Anpas
sung der elektrischen Hochfrequenz- bzw. HF-Spannung ist bis
lang nur am HF-Generator per Hand einstellbar, wodurch die
Aufmerksamkeit des Operateurs an verschiedenen Arbeitsbereichen
gleichzeitig gefordert ist. Darüber hinaus haben diese Elek
trochirurgie-Werkzeuge gemeinsam den Nachteil, daß der Opera
teur wie erwähnt zur Anwendung der monopolaren Operationsme
thode ein anderes Werkzeug einsetzen muß. Der unvermeidliche
Zeitverlust ist medizinisch bedenklich und ineffizient.
Es besteht daher die Aufgabe, elektrochirurgische Operations
werkzeuge zu schaffen, welche dem Operateur die Möglichkeit
geben, während der Operation schnell und einfach von dem einen
zum anderen elektrochirugischen zu wechseln.
Weiterhin anzustreben ist die Anpassung des elektrochirurgi
schen HF-Stromes an den jeweiligen elektrischen Widerstand des
zu verödenden Gewebes soweit wie möglich zu automatisieren,
damit der Operateur sich optimal auf den Patienten konzentrie
ren kann.
Diese Aufgabe ist erfindungsgemäß bei einem elektrochirurgi
schen Werkzeug mit den Merkmalen des Anspruchs 1 gelöst. Vor
teilhafte Weiterbildungen des erfindungsgemäßen Werkzeuges
sind Gegenstand der Unteransprüche.
Ein elektrochirurgisches Operationswerkzeug zeichnet sich so
mit dadurch aus, daß seine Elektrodenanschlüsse für den Ein
satz in der monopolaren und der bipolaren Betriebsart vorgese
hen sind. Zweckmäßig ist ein elektrischer Schalter für die Um
schaltung zwischen der monopolaren und der bipolaren Betrieb
sart vorgesehen.
Auf diese Weise kann sowohl monopolarer als auch bipolarer
HF-Strom eingesetzt werden, indem zwischen monopolarem und bi
polarem HF-Strom umgeschaltet wird. So kann der Operateur je
nach den Erfordernissen zwischen den beiden elektrochirurgi
schen Operationsmethoden hin- und herzuschalten.
Zweckmäßig ist am Operationswerkzeug ein elektrischer Schalter
angebracht, der die Umschaltung zwischen den beiden elektro
chirurgischen Operationsmethoden ermöglicht. Grundsätzlich ist
denkbar, daß diese Umschaltung auch anders, beispielsweise
über ein Fußpedal gestellt wird.
Eine günstige Weiterentwicklung der Erfindung besteht darin,
daß eine Schaltmöglichkeit am Operationswerkzeug angebracht
ist, mit welcher der Operateur das Ein-/Ausschalten des elek
trochirurgischen Stromes vornehmen kann. Auch dieses Ein-/Aus
schalten muß nicht zwingend am Operationswerkzeug durchgeführt
werden. Sind aber die wichtigen Schalter für Umschaltung und
Ein-/Ausschaltung am Operationswerkzeug angebracht, so kann
der Operateur alle wichtigen Steuerungen eigenhändig vorneh
men, ohne das Gesicht vom Patienten ab- und technischen Gerä
ten zuwenden zu müssen. Denkbar ist auch eine Kombination aus
Umschalter und Ein-/Ausschalter, die an bestimmte, bereits
bestehende Operationswerkzeuge nachgerüstet werden kann. Ein
weiterer, günstiger Nebeneffekt der Erfindung besteht darin,
daß für beide elektrochirurgischen Operationsmethoden eine
Verkabelung zwischen Operationswerkzeug und HF-Generator aus
reicht. Infolgedessen wird die Anhäufung von elektrischen Lei
tungen im zentralen Operationsbereich vermindert.
Vorteilhaft ermöglicht die Erfindung auch eine automatischen
Anpassung des elektrochirurgischen HF-Stromes an den jewei
ligen elektrischen Widerstand des zu verödenden Gewebes vor.
Diese Anpassung steuert ein Sensor, der den Winkel zwischen
den geöffneten Schenkeln des jeweiligen Operationswerkzeuges
mißt. Die so gewonnenen Daten werden von einem Rechner ge
nutzt, um die Spannung des elektrochirurgischen HF-Stromes so
zu regulieren, daß eine optimale Blutstillung bei minimaler
Karbonisierung des verödeten Gewebes erreicht wird.
Die Erfindung wird im folgenden anhand eines vorteilhaften
Ausführungsbeispiels und der Zeichnung beschrieben. Es zeigen:
Fig. 1 eine schematische Block-Darstellung einer monopolar
angeschlossenen Schere und
Fig. 2 eine schematische Block-Darstellung einer bipolar an
geschlossenen Schere.
Ein HF-Generator 2 weist einen erstem und einen zweiten An
schluß 4, 6 auf. An den ersten Anschluß 4 sind die beiden
Scherenblätter 40, 42 einer elektrochirurgischen Schere über
Leitungen 8, 10 parallel als sogenannte aktive Elektroden an
geschlossen. Eine sogenannte neutrale Elektrode 44, die am Pa
tienten P befestigt wird, ist über eine Leitung 12 an den An
schluß 6 angeschlossen. Bei dem Einsatz der Schere fließt dann
der HF-Strom von den beiden aktiven Elektroden 40, 42 zu der
neutralen Elektrode 44.
Der HF-Generator weist vier Steueranschlüsse auf, mit denen
vier Schalter 20, 22, 24, 26 über Leitungen 28, 30, 32, 34
verbunden sind. Untereinander sind die Schalter über eine
Leitung 36 verbunden. Die vier Schalter 20, 22, 24, 26 sind
für das Schalten in den monopolaren Betrieb, bipolaren Be
trieb, Schneidebetrieb und Koagulationsbetrieb vorgesehen. In
der in Fig. 1 gezeigten Betriebsart ist durch einen nicht dar
gestellten elektrischen Schalter der Schalter 20 für den mono
polaren Betrieb betätigt, was durch den Pfeil B veranschau
licht ist. Die vier Schalter 20, 22, 24, 26 können auch direkt
in einem Gehäuse beispielsweise an der Schere angebracht sein.
Fig. 2 zeigt die Schere, wie sie für den bipolaren Betrieb
angeschlossen ist. Zumindest für diese Betriebsart ist eine
ausreichende elektrische Isolation der beiden Scherenblätter
40, 42 voneinander sichergestellt. Soweit die Teile dieselben
wie bei der monoplaren Betriebsart sind, sind sie mit densel
ben Bezugszeichen bezeichnet und werden nicht erneut beschrie
ben. An den ersten Anschluß 4 ist nur das eine Scherenblatt 40
der Schere über die Leitung 8 als aktive Elektrode angeschlos
sen. Das andere Scherenblatt 42 ist über die Leitung 10 an den
zweiten Anschluß 6 als passive Elektrode angeschlossen. Bei
dem Einsatz der Schere fließt dann der HF-Strom von der aktive
Elektrode 40 zu der passiven Elektrode 42.
Von den Schaltern des HF-Generators ist durch den nicht darge
stellten elektrischen Schalter der Schalter 22 für den bipola
ren Betrieb betätigt, was durch den Pfeil B veranschaulicht
ist.
Claims (8)
1. Elektrochirurgisches Operationswerkzeug mit mindestens 2
Elektroden für den Einsatz mit HF-Strom, dadurch gekennzeich
net, daß seine Elektrodenanschlüsse für den Einsatz in der
monopolaren und der bipolaren Betriebsart vorgesehen sind.
2. Werkzeug nach Anspruch 1, dadurch gekennzeichnet, daß ein
elektrischer Schalter für die Umschaltung zwischen der mono
polaren und der bipolaren Betriebsart vorgesehen ist.
3. Werkzeug nach Anspruch 1, dadurch gekennzeichnet, daß der
Schalter am Werkzeug angebracht ist,
4. Werkzeug nach Anspruch 1, dadurch gekennzeichnet, daß der
Schalter an einem Fußschalter vorgesehen ist.
5. Werkzeug nach einem der Ansprüche 1 bis 4, dadurch gekenn
zeichnet, daß ein Ein-/Ausschalter für den jeweiligen HF-Strom
vorgesehen ist.
6. Werkzeug nach Anspruch 5, dadurch gekennzeichnet, daß der
Ein-/Ausschalter am Werkzeug angebracht ist.
7. Werkzeug nach Anspruch 1, dadurch gekennzeichnet, daß ein
Sensor vorgesehen ist, der die Entfernung zwischen den distalen
Werkzeugelektroden mißt.
8. Werkzeug nach Anspruch 7, dadurch gekennzeichnet, daß der
Sensor mit dem HF-Generator und/oder einem Steuerrechner ver
bunden ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997151108 DE19751108A1 (de) | 1997-11-18 | 1997-11-18 | Elektrochirurgisches Operationswerkzeug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997151108 DE19751108A1 (de) | 1997-11-18 | 1997-11-18 | Elektrochirurgisches Operationswerkzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19751108A1 true DE19751108A1 (de) | 1999-05-20 |
Family
ID=7849103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1997151108 Ceased DE19751108A1 (de) | 1997-11-18 | 1997-11-18 | Elektrochirurgisches Operationswerkzeug |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19751108A1 (de) |
Cited By (621)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002098313A1 (de) * | 2001-06-05 | 2002-12-12 | Erbe Elektromedizin Gmbh | Bipolare klemme |
EP1530952A1 (de) * | 2003-11-17 | 2005-05-18 | Sherwood Services AG | Bipolare elektrochirurgische Zange mit monopolarem Erweiterungselement |
US7033354B2 (en) | 2002-12-10 | 2006-04-25 | Sherwood Services Ag | Electrosurgical electrode having a non-conductive porous ceramic coating |
US7083618B2 (en) | 2001-04-06 | 2006-08-01 | Sherwood Services Ag | Vessel sealer and divider |
US7101372B2 (en) | 2001-04-06 | 2006-09-05 | Sherwood Sevices Ag | Vessel sealer and divider |
US7101373B2 (en) | 2001-04-06 | 2006-09-05 | Sherwood Services Ag | Vessel sealer and divider |
US7103947B2 (en) | 2001-04-06 | 2006-09-12 | Sherwood Services Ag | Molded insulating hinge for bipolar instruments |
US7118570B2 (en) | 2001-04-06 | 2006-10-10 | Sherwood Services Ag | Vessel sealing forceps with disposable electrodes |
US7118587B2 (en) | 2001-04-06 | 2006-10-10 | Sherwood Services Ag | Vessel sealer and divider |
USD531311S1 (en) | 2004-10-06 | 2006-10-31 | Sherwood Services Ag | Pistol grip style elongated dissecting and dividing instrument |
US7131970B2 (en) | 2003-11-19 | 2006-11-07 | Sherwood Services Ag | Open vessel sealing instrument with cutting mechanism |
US7135020B2 (en) | 1997-11-12 | 2006-11-14 | Sherwood Services Ag | Electrosurgical instrument reducing flashover |
US7147638B2 (en) | 2003-05-01 | 2006-12-12 | Sherwood Services Ag | Electrosurgical instrument which reduces thermal damage to adjacent tissue |
USD533942S1 (en) | 2004-06-30 | 2006-12-19 | Sherwood Services Ag | Open vessel sealer with mechanical cutter |
US7150097B2 (en) | 2003-06-13 | 2006-12-19 | Sherwood Services Ag | Method of manufacturing jaw assembly for vessel sealer and divider |
US7156846B2 (en) | 2003-06-13 | 2007-01-02 | Sherwood Services Ag | Vessel sealer and divider for use with small trocars and cannulas |
US7160298B2 (en) | 1997-11-12 | 2007-01-09 | Sherwood Services Ag | Electrosurgical instrument which reduces effects to adjacent tissue structures |
US7160299B2 (en) | 2003-05-01 | 2007-01-09 | Sherwood Services Ag | Method of fusing biomaterials with radiofrequency energy |
US7179258B2 (en) | 1997-11-12 | 2007-02-20 | Sherwood Services Ag | Bipolar electrosurgical instrument for sealing vessels |
US7195631B2 (en) | 2004-09-09 | 2007-03-27 | Sherwood Services Ag | Forceps with spring loaded end effector assembly |
US7207990B2 (en) | 1997-11-14 | 2007-04-24 | Sherwood Services Ag | Laparoscopic bipolar electrosurgical instrument |
USD541938S1 (en) | 2004-04-09 | 2007-05-01 | Sherwood Services Ag | Open vessel sealer with mechanical cutter |
US7232440B2 (en) | 2003-11-17 | 2007-06-19 | Sherwood Services Ag | Bipolar forceps having monopolar extension |
US7241296B2 (en) | 1997-11-12 | 2007-07-10 | Sherwood Services Ag | Bipolar electrosurgical instrument for sealing vessels |
US7252667B2 (en) | 2003-11-19 | 2007-08-07 | Sherwood Services Ag | Open vessel sealing instrument with cutting mechanism and distal lockout |
US7255697B2 (en) | 2001-04-06 | 2007-08-14 | Sherwood Services Ag | Vessel sealer and divider |
US7267677B2 (en) | 1998-10-23 | 2007-09-11 | Sherwood Services Ag | Vessel sealing instrument |
US7270660B2 (en) | 1997-09-09 | 2007-09-18 | Sherwood Services Ag | Apparatus and method for sealing and cutting tissue |
US7270664B2 (en) | 2002-10-04 | 2007-09-18 | Sherwood Services Ag | Vessel sealing instrument with electrical cutting mechanism |
US7276068B2 (en) | 2002-10-04 | 2007-10-02 | Sherwood Services Ag | Vessel sealing instrument with electrical cutting mechanism |
USD564662S1 (en) | 2004-10-13 | 2008-03-18 | Sherwood Services Ag | Hourglass-shaped knife for electrosurgical forceps |
USD567943S1 (en) | 2004-10-08 | 2008-04-29 | Sherwood Services Ag | Over-ratchet safety for a vessel sealing instrument |
US7377920B2 (en) | 1997-11-14 | 2008-05-27 | Sherwood Services Ag | Laparoscopic bipolar electrosurgical instrument |
USD575401S1 (en) | 2007-06-12 | 2008-08-19 | Tyco Healthcare Group Lp | Vessel sealer |
USD575395S1 (en) | 2007-02-15 | 2008-08-19 | Tyco Healthcare Group Lp | Hemostat style elongated dissecting and dividing instrument |
US7435249B2 (en) | 1997-11-12 | 2008-10-14 | Covidien Ag | Electrosurgical instruments which reduces collateral damage to adjacent tissue |
US7442193B2 (en) | 2003-11-20 | 2008-10-28 | Covidien Ag | Electrically conductive/insulative over-shoe for tissue fusion |
US7473253B2 (en) | 2001-04-06 | 2009-01-06 | Covidien Ag | Vessel sealer and divider with non-conductive stop members |
US7491202B2 (en) | 2005-03-31 | 2009-02-17 | Covidien Ag | Electrosurgical forceps with slow closure sealing plates and method of sealing tissue |
US7491201B2 (en) | 2003-05-15 | 2009-02-17 | Covidien Ag | Tissue sealer with non-conductive variable stop members and method of sealing tissue |
US7500975B2 (en) | 2003-11-19 | 2009-03-10 | Covidien Ag | Spring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument |
US7510556B2 (en) | 1998-10-23 | 2009-03-31 | Coviden Ag | Vessel sealing instrument |
US7540872B2 (en) | 2004-09-21 | 2009-06-02 | Covidien Ag | Articulating bipolar electrosurgical instrument |
US7553312B2 (en) | 1998-10-23 | 2009-06-30 | Covidien Ag | Vessel sealing instrument |
US7582087B2 (en) | 1998-10-23 | 2009-09-01 | Covidien Ag | Vessel sealing instrument |
US7594916B2 (en) | 2005-11-22 | 2009-09-29 | Covidien Ag | Electrosurgical forceps with energy based tissue division |
US7597693B2 (en) | 2003-06-13 | 2009-10-06 | Covidien Ag | Vessel sealer and divider for use with small trocars and cannulas |
US7628791B2 (en) | 2005-08-19 | 2009-12-08 | Covidien Ag | Single action tissue sealer |
US7628792B2 (en) | 2004-10-08 | 2009-12-08 | Covidien Ag | Bilateral foot jaws |
WO2009149799A1 (de) * | 2008-06-11 | 2009-12-17 | Erbe Elektromedizin Gmbh | Elektrochirurgisches gerät mit sicherungseinrichtung |
US7641653B2 (en) | 2006-05-04 | 2010-01-05 | Covidien Ag | Open vessel sealing forceps disposable handswitch |
US7642451B2 (en) | 2008-01-23 | 2010-01-05 | Vivant Medical, Inc. | Thermally tuned coaxial cable for microwave antennas |
US7686827B2 (en) | 2004-10-21 | 2010-03-30 | Covidien Ag | Magnetic closure mechanism for hemostat |
US7686804B2 (en) | 2005-01-14 | 2010-03-30 | Covidien Ag | Vessel sealer and divider with rotating sealer and cutter |
USD613412S1 (en) | 2009-08-06 | 2010-04-06 | Vivant Medical, Inc. | Vented microwave spacer |
US7713076B2 (en) | 2007-11-27 | 2010-05-11 | Vivant Medical, Inc. | Floating connector for microwave surgical device |
US7722607B2 (en) | 2005-09-30 | 2010-05-25 | Covidien Ag | In-line vessel sealer and divider |
US7744615B2 (en) | 2006-07-18 | 2010-06-29 | Covidien Ag | Apparatus and method for transecting tissue on a bipolar vessel sealing instrument |
US7766910B2 (en) | 2006-01-24 | 2010-08-03 | Tyco Healthcare Group Lp | Vessel sealer and divider for large tissue structures |
US7771425B2 (en) | 2003-06-13 | 2010-08-10 | Covidien Ag | Vessel sealer and divider having a variable jaw clamping mechanism |
US7776036B2 (en) | 2003-03-13 | 2010-08-17 | Covidien Ag | Bipolar concentric electrode assembly for soft tissue fusion |
US7776037B2 (en) | 2006-07-07 | 2010-08-17 | Covidien Ag | System and method for controlling electrode gap during tissue sealing |
US7789878B2 (en) | 2005-09-30 | 2010-09-07 | Covidien Ag | In-line vessel sealer and divider |
US7799026B2 (en) | 2002-11-14 | 2010-09-21 | Covidien Ag | Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion |
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1997
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