DE10201569B4 - Surgical instrument - Google Patents
Surgical instrument Download PDFInfo
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- DE10201569B4 DE10201569B4 DE2002101569 DE10201569A DE10201569B4 DE 10201569 B4 DE10201569 B4 DE 10201569B4 DE 2002101569 DE2002101569 DE 2002101569 DE 10201569 A DE10201569 A DE 10201569A DE 10201569 B4 DE10201569 B4 DE 10201569B4
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- tool
- fluid
- instrument according
- fluid channel
- instrument
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3201—Scissors
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- 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
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
-
- 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
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
-
- 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
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
-
- 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
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B2018/146—Scissors
Abstract
Chirurgisches Instrument mit einem proximalen und einem distalen Ende, mit einem ersten Werkzeug und einem zweiten, relativ zum ersten bewegbaren Werkzeug am distalen Ende des Instruments, mit einem dem ersten Werkzeug zugeordneten ersten Fluidkanal, der einen Fluideinlaß an seinem proximalen Ende aufweist und eine Fluidströmung in distaler Richtung ermöglicht, und mit einem zweiten Fluidkanal, der eine Fluidströmung in proximaler Richtung ermöglicht und einen Fluidauslaß an seinem proximalen Ende aufweist, wobei das erste Werkzeug (19) den zweiten Fluidkanal (35) umfaßt, dadurch gekennzeichnet, daß der erste Fluidkanal (34) und der zweite Fluidkanal (35) einen Kühlkanal (33) bilden und daß ein distaler Endbereich des ersten Fluidkanals (34) mit einem distalen Endbereich des zweiten Fluidkanals (35) in direkter Fluidverbindung steht, indem die beiden distalen Enden der Fluidkanäle miteinander verbunden werden, so daß ein Kühlkreislauf im Kühlkanal (33) mittels eines durch den ersten und zweiten Fluidkanal (34, 35) strömenden Fluids entsteht.surgical Instrument with a proximal and a distal end, with a first tool and a second, relative to the first movable Tool at the distal end of the instrument, with one the first Tool associated first fluid channel having a fluid inlet at its Having proximal end and allows fluid flow in the distal direction, and with a second fluid channel, which is a fluid flow in proximal direction allows and a fluid outlet its proximal end, wherein the first tool (19) the second fluid channel (35) thereby characterized in that first fluid channel (34) and the second fluid channel (35) has a cooling channel (33) form and that one distal end portion of the first fluid channel (34) having a distal End portion of the second fluid channel (35) in direct fluid communication is standing by the two distal ends of the fluid channels with each other be connected so that a Cooling circuit in the cooling channel (33) by means of a through the first and second fluid channel (34, 35) flowing fluid arises.
Description
Die Erfindung betrifft ein chirurgisches Instrument mit einem proximalen und einem distalen Ende, mit einem ersten Werkzeug und einem zweiten, relativ zum ersten bewegbaren Werkzeug am distalen Ende des Instruments, mit einem dem ersten Werkzeug zugeordneten ersten Fluidkanal, der einen Fluideinlaß an seinem proximalen Ende aufweist und eine Fluidströmung in distaler Richtung ermöglicht, und mit einem zweiten Fluidkanal, der eine Fluidströmung in proximaler Richtung ermöglicht und einen Fluidauslaß an seinem proximalen Ende aufweist, wobei das erste Werkzeug den zweiten Fluidkanal umfaßt.The The invention relates to a surgical instrument with a proximal and a distal end, with a first tool and a second, relative to the first movable tool at the distal end of the instrument, with a first fluid channel associated with the first tool, the a fluid inlet has its proximal end and a fluid flow in allows distal direction, and with a second fluid channel, which is a fluid flow in the proximal direction allows and a fluid outlet its proximal end, wherein the first tool the second Fluid channel includes.
Chirurgische
Instrumente der eingangs beschriebenen Art sind beispielsweise aus
der
Zum Veröden von Weichgewebe wird üblicherweise über zwei Elektroden ein Hochfrequenzstrom angelegt. Dieser kann direkt über das Instrument oder über separate Elektroden fließen. In beiden Fällen befindet sich das Instru ment in Kontakt mit einem solchen Koagulationsbereich, mit der Folge, daß die beiden Werkzeuge sehr heiß werden können.To the become deserted of soft tissue is usually over two Electrodes applied a high frequency current. This can be done directly over the Instrument or over separate electrodes flow. In both cases If the instrument is in contact with such a coagulation area, with the result that the both tools get very hot can.
Mit
den beiden bei der Bipolarschere gemäß der
Aus
der
Daher ist es Aufgabe der vorliegenden Erfindung, ein Instrument der eingangs beschriebenen Art so zu verbessern, daß die Werkzeuge auf einfache Weise und zuverlässig gekühlt werden können.Therefore It is an object of the present invention, an instrument of the beginning described type to improve the tools in a simple manner and reliable chilled can be.
Diese Aufgabe wird bei einem chirurgischen Instrument der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, daß der erste Fluidkanal und der zweite Fluidkanal einen Kühlkanal bilden und daß ein distaler Endbereich des ersten Fluidkanals mit einem distalen Endbereich des zweiten Fluidkanals in direkter Fluidverbindung steht, indem die beiden distalen Enden der Fluidkanäle miteinander verbunden werden, so daß ein Kühlkreislauf im Kühlkanal mittels eines durch den ersten und zweiten Fluidkanal strömenden Fluids entsteht.These Task is in a surgical instrument of the type described above Type according to the invention thereby solved, that the first fluid channel and the second fluid channel a cooling channel form and that one distal end portion of the first fluid channel having a distal end portion the second fluid channel is in direct fluid communication by the two distal ends of the fluid channels are interconnected, so that one Cooling circuit in the cooling channel by means of a fluid flowing through the first and second fluid channels arises.
Durch die direkte Fluidverbindung der beiden distalen Endbereiche der beiden Fluidkanäle kann kein Fluid mehr in den Operationsbereich gelangen. Am einfachsten wird die direkte Fluidverbindung hergestellt, indem die beiden distalen Enden der Fluidkanäle miteinander verbunden werden. Durch die Anordnung der beiden Fluidkanäle an einem Werkzeug entsteht somit ein geschlossener Kühlkreislauf. Verunreinigungen können nicht in diesen eindringen und den Kühlkanal verstopfen. Damit kann das eine Werkzeug auf sichere Weise gekühlt werden. In gleicher Weise könnte auch das zweite Werkzeug mit einem Kühlkanal versehen werden. Ferner wären auch die beiden Fluidkanäle im Bereich der Werkzeuge verbindende Querkanäle zur weiteren Verbesserung der Kühlung denkbar.By the direct fluid connection of the two distal end portions of the two fluid channels no fluid can enter the operating area anymore. The easiest The direct fluid connection is made by placing the two distal ones Ends of the fluid channels be connected to each other. By the arrangement of the two fluid channels on one Tool thus creates a closed cooling circuit. impurities can do not penetrate into these and clog the cooling channel. So that can a tool can be safely cooled. In the same way could Also, the second tool to be provided with a cooling channel. Further would be the two fluid channels in the field of tools connecting cross channels to further improve the cooling conceivable.
Vorzugsweise sind der Fluideinlaß und/oder der Fluidauslaß in einem werkzeugfreien Bereich des Instruments angeordnet. Über den Fluideinlaß und den Fluidauslaß ist der Kühlkanal mit einer Fluidzufuhr bzw. -absaugung verbindbar. Die Anordnung der beiden Anschlüsse in einem werkzeugfreien Bereich des Instruments hat beispielsweise bei endoskopischen Instrumenten den Vorteil, daß die Anschlüsse am Instrument so angeordnet werden können, daß sie sich bei einem chirurgischen Eingriff außerhalb des menschlichen Körpers befinden können und den Operationsbereich nicht unnötig einschränken.Preferably are the fluid inlet and / or the Fluid outlet in arranged a tool-free area of the instrument. On the Fluid inlet and the Fluid outlet is the cooling channel connectable with a fluid supply or -absaugung. The order the two connections in a tool-free area of the instrument has, for example in endoscopic instruments the advantage that the connections on the instrument can be arranged that she to be outside the human body during a surgical procedure can and do not unnecessarily restrict the operation area.
Bei einer bevorzugten Ausführungsform der Erfindung kann vorgesehen sein, daß sich der erste und der zweite Fluidkanal im wesentlichen vom proximalen zum distalen Ende des Instruments erstrecken und daß der Fluideinlaß und der Fluidauslaß am proximalen Ende des Instruments angeordnet sind. Auf diese Weise lassen sich besonders schlanke Instrumente ausbilden, die bevorzugt in der Endoskopie Anwendung finden können. Ferner wird die Handhabung des Instruments erleichtert, da keine störenden Anschlüsse für ein zu- bzw. abzuführendes Fluid in einem Griff- oder Werkzeugbereich des Instruments angeordnet sein müssen.In a preferred embodiment of the invention, it may be provided that the first and second fluid channels extend substantially from the proximal to the distal end of the instrument and that the fluid inlet and outlet are located at the proximal end of the instrument. In this way, particularly slim instruments can be formed which can preferably be used in endoscopy. Furthermore, the handling of the instrument is facilitated since no interfering connections for a fluid to be supplied or removed have to be arranged in a handle or tool area of the instrument.
Günstig ist es, wenn ein Abstand zwischen dem ersten und dem zweiten Fluidkanal im Bereich des ersten Werkzeugs am größten ist. Durch den großen Abstand der beiden Fluidkanäle kann das erste Werkzeug optimal gekühlt und Wärme von diesem großflächig abgeführt werden.Cheap is it, when a distance between the first and the second fluid channel is greatest in the area of the first tool. By the big distance the two fluid channels the first tool can be cooled optimally and heat can be dissipated from this over a large area.
Grundsätzlich wäre es denkbar, das chirurgische Instrument auch als Rohrschaftinstrument auszugestalten. Vorteilhaft ist es jedoch, wenn das chirurgische Instrument zwei relativ zueinander verschwenkbar aneinander gelagerte Branchen umfaßt und wenn jedes der beiden distalen Enden der Branchen eines der beiden Werkzeuge umfaßt. So kann das Instrument beispielsweise in Form einer herkömmlichen Schere ausgestaltet sein, wobei ein oder beide Fluidkanäle in oder an einer der beiden Branchen angeordnet sind.In principle, it would be conceivable to design the surgical instrument also as a tubular shaft instrument. However, it is advantageous if the surgical instrument two includes relative to each other pivotally mounted to each other industries and if each of the two distal ends of the branches of one of the two tools includes. For example, the instrument may be in the form of a conventional one Scissors be configured with one or both fluid channels in or arranged on one of the two branches.
Um die Ausbildung der beiden Fluidkanäle zu erleichtern, kann es günstig sein, wenn das erste Werkzeug mehrteilig ausgebildet ist und mindestens ein erstes und ein zweites Werkzeugelement umfaßt. So können ein oder beide Fluidkanäle teilweise in einem der beiden Werkzeugelemente gebildet werden. Ferner ist es möglich, unterschiedliche Materialien zu verwenden, beispielsweise ein abriebbeständiges Metall für ein schneidenförmiges Werkzeug und einen Kunststoff für einen Fluidkanal. Auch sind keramische Werkzeugelemente denkbar.Around It can facilitate the formation of the two fluid channels Cheap be when the first tool is designed in several parts and at least one comprises first and a second tool element. So one or both fluid channels can partially be formed in one of the two tool elements. Further is it is possible to use different materials, such as an abrasion resistant metal for a cut shaped Tool and a plastic for a fluid channel. Also, ceramic tool elements are conceivable.
Gemäß einer bevorzugten Ausführungsform der Erfindung umfaßt das erste Werkzeugelement den ersten und/oder den zweiten Fluidkanal mindestens teilweise. Es ist demnach möglich, den Fluidkanal bzw. die beiden Fluidkanäle auch einteilig auszugestalten, beispielsweise als Rohr.According to one preferred embodiment of Invention the first tool element the first and / or the second fluid channel at least partially. It is therefore possible, the fluid channel or the two fluid channels also to design in one piece, for example as a pipe.
Vorteilhaft kann es aber auch sein, wenn das erste und das zweite Werkzeug element den ersten und/oder den zweiten Fluidkanal mindestens teilweise umfassen. Beide Werkzeugelemente können bei der Bildung der beiden Fluidkanäle zusammenwirken, beispielsweise indem jedes Element mit einer halbschaligen Ausnehmung versehen ist.Advantageous but it can also be when the first and the second tool element the first and / or the second fluid channel at least partially include. Both tool elements can help in the formation of the two fluid channels interact by, for example, adding each element to a half-shelled one Recess is provided.
Die beiden Fluidkanäle könnten vollständig innerhalb eines der beiden Werzeugelemente angeordnet sein. Günstig ist es jedoch, wenn das erste und das zweite Werkzeugelement aneinander angrenzen und wenn der erste und/oder der zweite Fluidkanal entlang einer Grenzfläche zwischen dem ersten und dem zweiten Werkzeugelement verlaufen. Dadurch wird die Herstellung der Werkzeugelemente wesentlich vereinfacht. Teile der beiden Fluidkanäle können jeweils in die beiden Werkzeugelemente eingearbeitet werden, die dann aneinander herangeführt werden und gemeinsam die beiden Fluidkanäle bilden. Auch wäre es denkbar, eine rohrförmige Leitung entlang der Grenzfläche zwischen beiden Werkzeugelementen anzuordnen.The two fluid channels could completely within be arranged one of the two Werzeugelemente. Cheap is However, if the first and the second tool element to each other adjacent and when the first and / or the second fluid channel along an interface run between the first and the second tool element. Thereby the production of the tool elements is considerably simplified. Parts of the two fluid channels can each be incorporated into the two tool elements, which then together brought be and together form the two fluid channels. It would also be conceivable a tubular Lead along the interface to arrange between two tool elements.
Besonders einfach wird der Aufbau, wenn das erste und/oder das zweite Werkzeugelement jeweils mit einer Ausnehmung versehen sind zum gemeinsamen Ausbilden des ersten und/oder zweiten Fluidkanals. Beide Werkzeugelemente können getrennt voneinander zur Ausbildung eines Fluidkanals vorbereitet werden. Weitere Teile sind nicht notwendig.Especially the structure becomes simple when the first and / or the second tool element are each provided with a recess for common education the first and / or second fluid channel. Both tool elements can prepared separately from each other to form a fluid channel become. Other parts are not necessary.
Besonders vorteilhaft ist es, wenn das erste Werkzeugelement aus einem Isolator, insbesondere einem keramischen Material hergestellt ist. Damit läßt sich beispielsweise eine Isolierung zwischen dem ersten und zweiten Werkzeug herstellen, wenn das aus einem Isolator hergestellte erste Werkzeugelement an das andere der beiden Werkzeuge angrenzt. Auch kann damit ein elektrischer Leiter im Bereich des ersten Werkzeugs vollständig isoliert werden.Especially It is advantageous if the first tool element consists of an insulator, in particular a ceramic material is produced. This can be For example, insulation between the first and second tools when the first tool element made of an insulator adjacent to the other of the two tools. Also can do with it electrical conductor completely isolated in the area of the first tool become.
Vorzugsweise ist das zweite Werkzeugelement aus einem Metall, insbesondere aus einem hochleitfähigen Metall hergestellt. Insbesondere bei mit Strom beaufschlagbaren Instrumenten ist ein zuverlässiger elektrischer Leiter von Vorteil, um insbesondere die Erwärmung des Instruments gering zu halten.Preferably is the second tool element made of a metal, in particular from a highly conductive Made of metal. Especially when acted upon by electricity Instruments is a reliable one electrical conductor of advantage, in particular the heating of the Instruments to keep low.
Für eine dauerhafte Stabilität des Instruments ist es vorteilhaft, wenn das erste und das zweite Werkzeugelement miteinander verbunden sind, insbesondere verklebt oder verlötet. Derartige Verbindungen sind auch zwischen unterschiedlichen Materialien möglich. Gegenüber einer Verbindung durch Umhüllung mittels eines weiteren Werkzeugelements kann beim Kleben oder Verlöten darauf vollständig verzichtet werden.For a lasting stability of the instrument, it is advantageous if the first and the second Tool element are connected together, in particular glued or soldered. Such compounds are also between different materials possible. Across from a connection by cladding by means of a further tool element can when gluing or soldering it Completely be waived.
Besonders günstig ist es, wenn das erste und/oder das zweite Werkzeugelement mindestens teilweise mit einer Deckschicht bedeckt sind. Damit lassen sich insbesondere Grenzflächen oder Verbindungskanten schützen. Dies ist insbesondere bei Sterilisationsvorgängen, denen das chirurgische Instrument in der Regel unterworfen sein wird, unerläßlich. Außerdem kann eine Deckschicht gleichfalls als Isolationsschicht ausgebildet werden. Besonders einfach und vorteilhaft ist die Deckschicht, wenn sie durch Anspritzen eines Kunststoffs hergestellt wird.Especially Cheap it is when the first and / or the second tool element at least partially covered with a cover layer. This can be especially interfaces or protect connection edges. This is especially true in sterilization procedures involving the surgical Instrument will usually be subject, indispensable. In addition, can a cover layer are also formed as an insulating layer. The cover layer is particularly simple and advantageous when passing through Injection of a plastic is produced.
Um ein sicheres Fließen des Fluids in den Fluidkanälen zu gewährleisten, umfaßt mindestens ein Abschnitt des ersten und/oder des zweiten Fluidkanals ein Rohr. Damit kann vermieden werden, daß beispielsweise aufgrund von Verkleben oder Verlöten von zwei Werkzeugelementen ein Fluidkanal bei der Herstellung verschlossen wird.Around a safe flow of the fluid in the fluid channels to ensure, comprises at least a portion of the first and / or the second fluid channel a pipe. This can be avoided that, for example, due to Gluing or soldering of two tool elements closed a fluid channel during manufacture becomes.
Gemäß einer bevorzugten Ausführungsform der Erfindung kann vorgesehen sein, daß der erste und der zweite Fluidkanal in einem Bereich des ersten Werkzeugs im wesentlichen in einer Werkzeugebene angeordnet sind, daß der erste und der zweite Fluidkanal außerhalb des Bereichs des ersten Werkzeugs im wesentlichen in einer Zuleitungsebene angeordnet sind, die im wesentlichen quer zur Werkzeugebene verläuft. Mit dieser Anordnung kann insbesondere eine schlanke Bauform erreicht werden, was für endoskopische Instrumente von Vorteil ist. Außerdem ermöglicht diese Ausgestaltung, daß beispielsweise bei einer zwei schwenkbare Branchen umfassenden Schere Anschlüsse der beiden Fluidkanäle quer zur Scherenebene abstehen und so eine Bewegung der zweiten Branche relativ zur ersten Branche nicht stören können.According to one preferred embodiment of Invention may be provided that the first and the second Fluid channel in a region of the first tool substantially are arranged in a mold plane, that the first and the second fluid channel outside the area of the first tool substantially in a feed level are arranged, which extends substantially transversely to the tool level. With This arrangement can be achieved in particular a slim design become, what for endoscopic instruments is beneficial. In addition, this embodiment allows that, for example in a two swiveling industries comprehensive scissors connections of two fluid channels protrude transversely to the plane of the scissors and so a movement of the second Industry relative to the first industry.
Eine Drehung der Zuleitungsebene und der Werkzeugebene kann beispielsweise erreicht werden, indem die beiden Fluidkanäle entsprechend gekrümmt sind. Günstig ist es jedoch, wenn eine zwei Teilkammern umfassende Fluidverteilkammer in einem Übergangsbereich zwischen dem ersten Werkzeug und einem werkzeugfreien Bereich vorgesehen ist, wenn die Fluidverteilkammer zwei parallel zur Werkzeugebene und zwei parallel zur Zuleitungsebene ausgerichtete Anschlüsse umfaßt und wenn jeweils eine der beiden Teilkammern eine Fluidverbindung zwischen einem parallel zur Werkzeugebene und einem parallel zur Zuleitungsebene ausgerichteten Anschluß bildet. Auf diese Weise werden komplizierte und die Fluidkanäle in ihrer Stabilität gefährdende Bie gungen derselben vermieden. Die Fluidkanäle können beidseitig direkt an die Fluidverteilkammer angeschlossen werden.A Rotation of the feed line and the tool level can be, for example can be achieved by the two fluid channels are curved accordingly. Cheap However, it is when a two-chamber fluid distribution chamber in a transition area between the first tool and a tool-free area, when the Fluidverteilkammer two parallel to the tool level and comprises two aligned parallel to the feed line connections and if one of the two sub-chambers a fluid connection between one parallel to the tool level and one parallel to the feed level aligned connection forms. In this way, complicated and the fluid channels in their stability hazardous Bie ments same avoided. The fluid channels can be directly on both sides of the Fluid distribution chamber are connected.
Zur Ausbildung des Instruments als Monopolar- und/oder Bipolarinstrument ist es vorteilhaft, wenn das erste und das zweite Werkzeug elektrisch gegeneinander isoliert sind. Dadurch werden unerwünschte Kurzschlüsse vermieden. Ein Koagulieren von Weichgewebe mittels Anlegen eines Hochfrequenzstroms an das Instrument ist auf einfache Weise möglich.to Training the instrument as a monopolar and / or bipolar instrument it is advantageous if the first and the second tool electrically against each other are isolated. This avoids unwanted short circuits. Coagulation of soft tissue by application of a high frequency current to the instrument is possible in a simple manner.
Besonders günstig ist es, wenn die erste Branche eine erste elektrische Zuleitung umfaßt, die mit dem ersten Werkzeug in Verbindung steht, und wenn an der ersten oder der zweiten Branche eine zweite, von der ersten elektrisch isolierte elektrische Zuleitung vorgesehen ist, die mit dem zweiten Werkzeug in Verbindung steht. Auf diese Weise kann ein Strom einfach und sicher zu den beiden Werkzeugen geleitet werden, beispielsweise um das Werkzeug anzutreiben oder um Weichgewebe zu koagulieren.Especially Cheap it is when the first branch has a first electrical lead comprises which is related to the first tool, and if at the first or the second branch a second, from the first electric insulated electrical supply line is provided, which is connected to the second Tool communicates. That way, a stream can be easy and safely routed to the two tools, for example to drive the tool or to coagulate soft tissue.
Grundsätzlich ist es von Vorteil, wenn die beiden Fluidkanäle so miteinander verbunden sind, daß kein Fluid auslaufen kann. Es kann jedoch günstig sein, wenn mindestens einer der beiden Fluidkanäle in seinem distalen Endbereich mit Öffnungen versehen ist. Die beiden Fluidkanäle dienen dann einerseits als Kühlkanal, andererseits als Spülkanal zum Spülen eines Operationsbereichs mit einer dafür geeigneten Spülflüssigkeit.Basically It is advantageous if the two fluid channels are connected to each other are that no Fluid can leak. However, it can be beneficial if at least one of the two fluid channels is provided in its distal end with openings. The two fluid channels serve on the one hand as a cooling channel, on the other hand as a flushing channel for do the washing up an operating area with a suitable rinsing liquid.
Vorzugsweise umfassen das erste und das zweite Werkzeug jeweils eine Schneide. So läßt sich auf einfache Art eine Schere ausbilden.Preferably The first and second tools each comprise a cutting edge. That's how it works simple form a pair of scissors.
Die nachfolgende Zeichnung dient im Zusammenhang mit der Beschreibung bevorzugter Ausführungsformen der Erfindung der näheren Erläuterung. Es zeigen:The The following drawing is used in conjunction with the description preferred embodiments the invention of the closer Explanation. Show it:
In
Am
proximalen Ende
Die
beiden Zuleitungen
Zur
Vermeidung einer übermäßigen Erwärmung der
beiden Schneiden
Wie
in
Die
beiden Fluidkanäle
Der
Aufbau der Schneide
Bei
der in den
In
Schließlich ist
in
Claims (20)
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US9333025B2 (en) | 2011-10-24 | 2016-05-10 | Ethicon Endo-Surgery, Llc | Battery initialization clip |
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US5658281A (en) * | 1995-12-04 | 1997-08-19 | Valleylab Inc | Bipolar electrosurgical scissors and method of manufacture |
US6102885A (en) * | 1996-08-08 | 2000-08-15 | Bass; Lawrence S. | Device for suction-assisted lipectomy and method of using same |
DE29821617U1 (en) * | 1998-12-03 | 1999-01-28 | Aesculap Ag & Co Kg | Surgical bipolar scissors |
DE20008623U1 (en) * | 2000-05-13 | 2000-08-10 | Aesculap Ag & Co Kg | Scissors-shaped or forceps-shaped surgical instrument |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US9333025B2 (en) | 2011-10-24 | 2016-05-10 | Ethicon Endo-Surgery, Llc | Battery initialization clip |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: AESCULAP AG, 78532 TUTTLINGEN, DE |
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8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130801 |