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DE10257760A1 - Surgical instrument - Google Patents

Surgical instrument
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Publication number
DE10257760A1
DE10257760A1DE10257760ADE10257760ADE10257760A1DE 10257760 A1DE10257760 A1DE 10257760A1DE 10257760 ADE10257760 ADE 10257760ADE 10257760 ADE10257760 ADE 10257760ADE 10257760 A1DE10257760 A1DE 10257760A1
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surgical instrument
instrument according
cannula
holder
section
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DE10257760A
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German (de)
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Stefan Koscher
Johann Wuertz
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Individual
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Priority to AU2003276245Aprioritypatent/AU2003276245A1/en
Priority to PCT/EP2003/012246prioritypatent/WO2004047653A2/en
Publication of DE10257760A1publicationCriticalpatent/DE10257760A1/en
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Abstract

Translated fromGerman

Bei einem chirurgischen Instrument zum Fixieren eines Elementes, insbesondere eines Implantates, in einem Körper mittels einem Fixierelement, wobei das Fixierelement in oder an einer Halterung (25), insbesondere in einer Kanüle, an einem Zug- und/oder Druckelement (4) angeordnet ist, welches in einer Führung (3) entlang einer Längsachse (A) geführt ist, soll die Halterung (25) um die Längsachse (A) drehbar und/oder gegenüber der Längsachse (A) schwenkbar sein.In the case of a surgical instrument for fixing an element, in particular an implant, in a body by means of a fixing element, the fixing element being arranged in or on a holder (25), in particular in a cannula, on a pulling and / or pushing element (4) which is guided in a guide (3) along a longitudinal axis (A), the holder (25) should be rotatable about the longitudinal axis (A) and / or pivotable with respect to the longitudinal axis (A).

Description

Translated fromGerman

Die vorliegende Erfindung beziehtsich auf ein chirurgisches Instrument zum Fixieren eines Elementes,insbesondere eines Implantates, in einem Körper mittels eines Fixierelementes,wobei das Fixierelement in oder an einer Halterung, insbesonderein einer Kanülean einem Zug- und/oderDruckelement angeordnet ist, welches in einer Führung entlang einer Längsachsegeführtist.The present invention relateson a surgical instrument for fixing an element,in particular an implant, in a body by means of a fixing element,wherein the fixing element in or on a holder, in particularin a cannulaon a train and / orPressure element is arranged, which is in a guide along a longitudinal axisguidedis.

Derartige chirurgische Instrumentesind in vielfältigerForm und Ausführungbekannt und gebräuchlich. Siewerden beispielsweise dafürverwendet, Implantate beispielsweise in Blutbahnen einzusetzen,welche der Gefahr von Aneurysmen ausgesetzt sind.Such surgical instrumentsare in more diverseShape and designknown and in use. shefor exampleused to insert implants, for example, in the bloodstream,which are at risk of aneurysms.

Derartige Implantate sind beispielsweisedünne Drahtgeflechte,welche zumeist in einem vorgespannten Zustand in eine Vene od. dgl.eingeführtwerden und sich an der betreffenden Stelle öffnen, um als eine Art zusätzlichesRohr die Venenwand aufzuweiten oder zumindest zu Verstärken undzu Entlasten.Such implants are, for examplethin wire mesh,which are usually in a prestressed state in a vein or the like.introducedand open up at the point in question as a kind of additionalTube to widen the vein wall or at least to reinforce itto relieve.

Nachteilig bei dieser Art des Vorgehensist, dass das Implantat mittels eines chirurgischen Instrumentesan die betreffende Stelle eingeführt,dort jedoch nicht fixiert wird. Dies kann dazu führen, dass das Implantat verrutschtund, gerade wenn es sich beispielsweise um ein Drahtgeflecht zurVerstärkungeiner Blutbahn handelt, zu Bruch gehen oder eventuell die Blutbahndurchstossen kann, wodurch es zu inneren Blutungen und folglichzu lebensbedrohlichen Situationen kommen kann.A disadvantage of this type of procedureis that the implant is made using a surgical instrumentintroduced to the place in question,but is not fixed there. This can cause the implant to slipand, especially if it is a wire mesh for examplereinforcementa bloodstream, break or possibly the bloodstreamcan pierce, causing internal bleeding and consequentlycan lead to life-threatening situations.

Diese Methode wurde durch die WO99/33402 dahingehend verbessert, dass das Implantat, welches sichin einer Vene od. dgl. befindet, nun mittels eines Befestigungselementeswie beispielsweise eines T-Ankers an der Wand der Blutbahn od. dgl.befestigt wird. Dieser T-Anker wird von ausserhalb der Blutbahndurch die Wand der Blutbahn eingestossen, im Inneren öffnet sichsozusagen das T und liegt mit dem Querbalken von innen her dem Implantatan. Der Stamm des T wird mittels weiteren Befestigungselementenauf der Aussenseite der Wand der Blutbahn befestigt, beispielsweiseverdrillt. Anschliessend kann die Kanüle wieder herausgezogen werden.This method was developed by WO99/33402 improved in that the implant, which isin a vein or the like is now by means of a fastenersuch as a T-anchor on the wall of the bloodstream or the like.is attached. This T-anchor is from outside the bloodstreampushed through the wall of the bloodstream, opens up insidethe T, so to speak, and lies with the crossbar from the inside of the implanton. The trunk of the T is made using additional fastenersattached to the outside of the wall of the bloodstream, for exampletwisted. The cannula can then be pulled out again.

Nachteilig hierbei ist, dass sichdie Kanüle,in welcher sich der T-Anker befindet, nicht festlegen lässt. Siebewegt sich frei an dem Instrumentenende und ist deshalb schwerzu führen.The disadvantage here is thatthe cannula,in which the T-anchor is located cannot be determined. shemoves freely at the end of the instrument and is therefore heavyrespectively.

Aufgabe der vorliegenden Erfindungist es, die o.g. Nachteile zu verhindern und ein chirurgisches Instrumentzu schaffen, welches ein Handling einer Halterung, insbesondereeiner Kanüle,mit einem Fixierelement, insbesondere einem T-Anker, vereinfachtund die Möglichkeiteröffnet,die Halterung an eine bestimmte Position und in eine bestimmte Stellungzu dirigieren und dort festzulegen.Object of the present inventionis it the above Prevent disadvantages and a surgical instrumentto create a handling of a bracket, in particulara cannula,simplified with a fixing element, in particular a T-anchorand the possibilityopened,the bracket to a certain position and in a certain positionto conduct and fix there.

Zur Lösung dieser Aufgabe führt, dassdie Halterung um die Längsachsedrehbar und/oder gegenüber derLängsachseschwenkbar ist.The solution to this task is thatthe bracket around the longitudinal axisrotatable and / or oppositelongitudinal axisis pivotable.

Wird als Halterung eine Kanüle gewählt, soist diese in einer Kanülenaufnahmegeführt,welche wiederum überein Gelenk mit einem Hauptteil verbunden ist. Zusammen bilden sieden Kanüleneinsatz.Der Kanüleneinsatzist einends mit einer Rasteinrichtung versehen, welche in Gebrauchmit einer Aufnahme einer Zug- und Druckstange bzw. einer Halteaufnahmeam Ende des Aussenrohres in Eingriff kommt. Die Rasteinrichtungverbindet den Kanüleneinsatzlösbarmit dem Zug- und Druckelement und dem Aussenrohr. Das Zug- und Druckelement,hier handelt es sich bevorzugt um eine Stange, ist wiederum in demAussenrohr des chirurgischen Instrumentes geführt.If a cannula is chosen as the holder, sois in a cannula holderguided,which in turn is abouta joint is connected to a main part. Together they formthe cannula insert.The cannula insertis provided at one end with a locking device which is in usewith a holder for a pull and push rod or a holder holdercomes into engagement at the end of the outer tube. The locking deviceconnects the cannula insertsolvablewith the tension and pressure element and the outer tube. The pull and push element,this is preferably a rod, is again in theOuter tube of the surgical instrument guided.

Die Rasteinrichtung setzt sich imEinzelnen aus einer Kugel am Ende eines Zug- und Druckstangenabschnitteszur Einlage in die Aufnahme der Zug- und Druckstange und zumindestzwei sich gegenüberliegendenZapfen an einem Führungsansatzzusammen, welche in eine Nut bzw. Ausnehmung der Halteaufnahme amEnde des Aussenrohres einfahren. Wie die Rastverbindung im einzelnenFall aussehen kann, ist von untergeordneter Bedeutung. Hauptsacheist, dass eine lösbareVerbindung zwischen dem Kanüleneinsatzund dem Aussenrohr bzw. der Zug- und Druckstange entsteht. Daher sollenall die verschieden Möglichkeiteneiner Verbindung von der vorliegenden Erfindung umfasst sein.The locking device sits inIndividual from a ball at the end of a pull and push rod sectionfor insertion in the receptacle of the pull and push rod and at leasttwo facing each otherPin on a guide lugtogether, which in a groove or recess of the holding receptacle onRetract the end of the outer tube. Like the detent connection in detailCase can look like is of minor importance. main thingis that a detachableConnection between the cannula insertand the outer tube or the pull and push rod is created. Therefore shouldall the different possibilitiesa compound of the present invention.

Die Zug- und Druckstange des Kanüleneinsatzesist an ihrem distalen Ende mit der Kanülenaufnahme gelenkig verbunden.Durch eine Bewegung des Zug- und Druckstangenabschnittes, ausgelöst durcheine Bewegung der Zug- und Druckstange in dem Aussenrohr, wird auchdie Kanülenaufnahmebewegt und mit ihr die darin geführteKanüle.Die Bewegung erfolgt dabei um einen beliebigen Winkel von 0° bis 90° gegenüber der Längsachse.The pull and push rod of the cannula insertis articulated to the cannula receptacle at its distal end.By movement of the pull and push rod section, triggered bya movement of the pull and push rod in the outer tube, toothe cannula holdermoved and with it the guided in itCannula.The movement takes place at any angle from 0 ° to 90 ° with respect to the longitudinal axis.

Die Zug- und Druckstange in dem Aussenrohrist an ihrem proximalen Ende in einem Griffschenkel eines Griffesgelenkig und drehbar gelagert. Durch Bewegung dieses Griffschenkelsbzw. des Griffes lässtsich auch die Zug- undDruckstange in dem Aussenrohr vor und zurückbewegen. Ist demnach derKanüleneinsatz über dieRasteinrichtung mit der Zug- und Druckstange verbunden, so lässt sich,bei Bewegung des Griffschenkels, auch der Zug- und Druckstangenabschnittvor- und zurückbewegen,wodurch die Kanüle,welche in der Kanülenaufnahmedes Kanüleneinsatzesbefestigt ist, gegenüberder Längsachseverschwenkt werden kann.The pull and push rod in the outer tubeis at the proximal end in a handle leg of a handlearticulated and rotatable. By moving this handle legor the handlethe train andMove the push rod back and forth in the outer tube. So is thatCannula insert over theLocking device connected to the pull and push rod, sowhen moving the handle leg, also the pull and push rod sectionmove back and forth,whereby the cannula,which in the cannula holderof the cannula insertattached, oppositethe longitudinal axiscan be pivoted.

Um die Kanüle um bevorzugt 360° um die Längsachsedrehen zu können,ist ein Drehknauf an dem chirurgischen Instrument vorgesehen, welchermit dem Aussenrohr verbunden ist. Da die Zapfen der Rasteinrichtungdes Kanüleneinsatzesfest in der Ausnehmung der Halteraufnahme am Ende des Aussenrohreseingerastet sind, lässtsich durch eine Drehung des Drehknaufes nicht nur das Aussenrohr,sondern auch der mit den Zapfen verbundene Kanüleneinsatz drehen. WeitereMöglichkeitender Drehung des Aussenrohres bzw. der Ausgestaltung des Drehknaufessollen von der vorliegenden Erfindung umfasst sein.In order to be able to rotate the cannula preferably through 360 ° about the longitudinal axis, a rotary knob is provided on the surgical instrument, which is connected to the outer tube. Because the cones of the Rastein direction of the cannula insert are firmly engaged in the recess of the holder receptacle at the end of the outer tube, not only the outer tube but also the cannula insert connected to the pin can be turned by turning the rotary knob. Further possibilities of rotating the outer tube or the design of the rotary knob are intended to be included in the present invention.

Die vorliegende Erfindung beziehtsich ebenfalls auf ein chirurgisches Instrument mit einem Aussenrohrund zumindest einem Arbeitselement, das mit dem Aussenrohr verbundenist.The present invention relatesalso refer to a surgical instrument with an outer tubeand at least one working element that is connected to the outer tubeis.

Nachteilig bei derartigen chirurgischenInstrumenten ist, dass vor allem das Arbeitselement, welches ander Spitze des Aussenrohres befestigt ist, ohne Schutz ist. DasAussenrohr mit dem Arbeitselement wird in den Körper eingeführt und kann dort aufgrunddes fehlenden Schutzes hängenbleiben und womöglichVerletzungen im Inneren des Körpersverursachen oder selbst beschädigtwerden.A disadvantage of such surgicalInstruments is that, above all, the work element that is onthe tip of the outer tube is attached without protection. TheOuter tube with the working element is inserted into the body and can there due toof lack of protectionstay and possiblyInjuries inside the bodycause or damaged itselfbecome.

Aufgabe der vorliegenden Erfindungist es daher, ein chirurgisches Instrument zu schaffen, welches dasArbeiten mit einem Arbeitselement zulässt, ohne im Inneren des Körpers Verletzungenzu verursachen oder das Arbeitselement selber zu beschädigen.Object of the present inventionis therefore to create a surgical instrument that theWorking with a work item allows for no injuries inside the bodycause or damage the work element itself.

Zur Lösung dieser Aufgabe führt, dassauf das Aussenrohr ein Schutzrohr aufgesetzt ist, welches aus zweiteleskopartig ineinander verschiebbaren Rohrabschnitten besteht,wovon ein Rohrabschnitt das Arbeitselement zumindest teilweise entfernbarumhüllt.The solution to this task is thata protective tube is placed on the outer tube, which consists of twoconsists of telescopically displaceable pipe sections,from which a pipe section at least partially removes the working elementenvelops.

Dem einen Schutzrohr ist dabei eintrichterförmigerAufsatz zugeordnet, mit welchem der Rohrabschnitt und damit dasSchutzrohr an einem Verbindungselement des Aussenrohres angeordnetwerden kann. Der Anordnung des Schutzrohres dient beispielsweiseein Sprengring, der sich erweitern kann und somit auf das Verbindungselementaufklickbar ist. Jede beliebige andere Verbindung zwischen dem trichterförmigen Aufsatzund dem Verbindungselement ist denkbar und soll von der vorliegendenErfindung umfasst sein.The one protective tube is onefunnel-shapedAssigned essay with which the pipe section and thus theProtective tube arranged on a connecting element of the outer tubecan be. The arrangement of the protective tube serves, for examplea snap ring that can expand and thus on the connecting elementis clickable. Any other connection between the funnel-shaped attachmentand the connecting element is conceivable and should be from the presentInvention to be included.

Die beiden Rohrabschnitte sind mittelseiner bajonettartigen Verbindung miteinander verbunden und ineinanderverschiebbar.The two pipe sections are by means ofa bayonet-like connection with each other and into each otherdisplaceable.

Ein knaufartiges Element, welchesmit dem inneren Rohrabschnitt durch den äusseren Rohrabschnitt verbundenund auf letzterem gleitbar ist, dient einer besseren Handhabungbei der Verschiebung der beiden Rohrabschnitte. Eine andere Haltungist denkbar.A knob-like element, whichconnected to the inner pipe section by the outer pipe sectionand slidable on the latter, is used for better handlingwhen moving the two pipe sections. Another attitudeis conceivable.

Hinter der bajonettartigen Verbindungkann an dem einen Rohrabschnitt desweiteren ein Ring vorgesehensein, welcher die Verschiebung des anderen Rohrabschnittes begrenzt.Behind the bayonet-like connectiona ring can also be provided on the one tube sectionbe, which limits the displacement of the other pipe section.

Das Schutzrohr ist durch seine beidenverschiebbaren Rohrabschnitte dazu geeignet, unterschiedlich grosseArbeitselemente zu schützen.The protective tube is through its twosliding pipe sections suitable for this, different sizesProtect work items.

Ein weiterer Vorteil des Schutzrohresder vorliegenden Erfindung ist, dass dieses sich einfach auseinandernehmenlässt,wodurch eine Reinigung der einzelnen Bestandteile des Schutzrohresmöglichist. Verjüngtsich das Rohr sogar nach unten hin, so erhöht sich der Spüldruck undeine bessere Reinigung wird erzielt.Another advantage of the protective tubeof the present invention is that it is easy to take apartleaves,thereby cleaning the individual components of the protective tubepossibleis. rejuvenatedIf the pipe even goes down, the flushing pressure increasesbetter cleaning is achieved.

Die vorliegende Erfindung beziehtsich weiterhin auf ein chirurgisches Instrument mit einem in einem AussenrohrgeführtenZug- und/oder Druckelement, wobei dem Zug- und/oder Druckelement eine Fixiereinrichtungzugeordnet ist.The present invention relatescontinue to rely on a surgical instrument with one in an outer tubeoutTension and / or pressure element, wherein the tension and / or pressure element a fixing deviceassigned.

Bisherige derartigen chirurgischenInstrumenten weisen den Nachteil auf, dass sich zwar das Zug- und/oderDruckelement in dem Aussenrohr beliebig hin und herschieben, sichjedoch nicht feststellen lässt. Dadurchgibt es keine Möglichkeit,beispielsweise den an dem Zug- und/oder Druckelement befestigtenKanüleneinsatzmit der Kanülezu führenund in einer bestimmten Position festzulegen. Ein Dirigieren derKanüle findetbeispielsweise durch Anlage an ein Element oder ähnliches statt, was jedochnur eine geringe Sicherung der Kanüle darstellt.Previous surgical suchInstruments have the disadvantage that the train and / orPush the pressure element back and forth in the outer tube as desiredbut cannot be determined. Therebyis there no possibility,for example the one attached to the tension and / or pressure elementcannula usewith the cannularespectivelyand fix it in a certain position. Conducting theCannula findsfor example by placing an element or the like instead, but whatrepresents only a slight securing of the cannula.

Aufgabe der vorliegenden Erfindungist es daher auch, ein chirurgisches Instrument zu schaffen, welcheses ermöglicht,die Zug- und/oder Druckstange in dem Aussenrohr und damit den Kanüleneinsatzmit der Kanülein einer bestimmten Position und Stellung festzulegen.Object of the present inventionit is therefore also to create a surgical instrument whichallows,the pull and / or push rod in the outer tube and thus the cannula insertwith the cannulain a specific position and position.

Zur Lösung dieser Aufgabe führt, dassdie Fixiereinrichtung eine auf das Zug- und/oder Druckelement aufgesetzteSpannhülseaufweist, deren Durchmesser veränderbarist.The solution to this task is thatthe fixing device is placed on the tension and / or compression elementclamping sleevehas whose diameter can be changedis.

Die Spannhülse, welche im Bereich desvorderen Griffschenkels des Griffes die Zug- und Druckstange umgreift,weist hierzu einen durchgehenden Schlitz mit einer gewissen Breiteauf. Da die Spannhülseauf einer Mulde eines Zylinderkörperseiner Welle aufliegt, wird die Breite des Schlitzes, wenn die Wellemittels eines Klemmhebels gedreht wird, verringert, wodurch sichder Durchmesser der Spannhülseverringern kann und somit das Zug- und Druckelement eingeklemmtwird und nicht mehr bewegt werden kann. Die Mulde in dem Zylinderkörper derWelle ist dabei bevorzugt exzentrisch angeordnet und weist eineSichelform auf. Anstelle der Mulde kann in der Welle beispielsweiseauch ein Element angeordnet werden, welches durch Drehen der Welleeine Verringerung der Breite der Spannhülse hervorruft und die Zug-und Druckstange einklemmt. Die unterschiedlichen Möglichkeitensollen von der vorliegenden Erfindung umfasst sein.The adapter sleeve, which in the area offront handle leg of the handle grips the pull and push rod,has a continuous slot with a certain widthon. Because the adapter sleeveon a hollow of a cylinder bodya shaft rests on the width of the slot when the shaftis rotated by means of a clamping lever, which reducesthe diameter of the adapter sleevecan reduce and thus pinched the tension and compression elementwill and can no longer be moved. The trough in the cylinder body of theThe shaft is preferably arranged eccentrically and has oneSickle shape on. Instead of the trough, for example, in the shaftan element can also be arranged by rotating the shafta reduction in the width of the adapter sleeve and the tensileand push rod clamped. The different optionsare intended to be encompassed by the present invention.

Um die Welle mittels des Klemmhebelsdrehen zu können,weist die Welle einen Zahnkranz auf, der in Gebrauchslage mit Zähnen einerBohrung des Klemmhebels in Eingriff steht. Die Welle kann dabeinur soweit gedreht werden, wie es die mit einem Zapfen an dem Griffzusammenwirkende Aussparung an dem Klemmhebel zulässt. Eineandere Möglichkeitder Begrenzung der Bewegung des Klemmhebels und damit der Wellein dem Griffschenkel des Griffes ist denkbar und soll von der vorliegendenErfindung umfasst sein. Ebenso ist eine andere Anordnung des Klemmhebelsauf der Welle oder der Drehung der Welle überhaupt denkbar und soll ebenfallsvon der vorliegendend Erfindung umfasst sein.In order to be able to rotate the shaft by means of the clamping lever, the shaft has a ring gear which, in the position of use, engages with teeth in a bore in the clamping lever. The shaft can only be rotated as far as the recess on the handle, which cooperates with a pin on the handle Clamping lever allows. Another possibility of limiting the movement of the clamping lever and thus the shaft in the handle leg of the handle is conceivable and is intended to be encompassed by the present invention. Another arrangement of the clamping lever on the shaft or the rotation of the shaft is also conceivable and should also be encompassed by the present invention.

Auch bei diesen Elementen ist einegute Zerlegbarkeit gegeben, wodurch das Reinigen des gesamten chirurgischenInstrumentes vereinfacht wird. Dadurch kann verhindert werden, dassaufgrund beispielsweise komplizierten Aufbaus nur eine nachlässige Reinigungerfolgt, was im schlimmsten Fall zu einer gefährlichen Infektion im Körper führen könnte, wennsolch nachlässiggereinigte Geräteerneut verwendet werden.There is also one with these elementsgiven good disassemblability, which makes cleaning the entire surgicalInstrumentes is simplified. This can preventdue to, for example, complicated construction, only negligent cleaningoccurs, which in the worst case could lead to a dangerous infection in the body ifso carelesscleaned devicesbe used again.

Obwohl auch Schutz separat für die einzelnenElemente begehrt wird, ist mit der vorliegenden Erfindung insgesamtein chirurgisches Instrument geschaffen worden, welches das Arbeitenim Körperwesentlich vereinfacht, indem die Kanüle sowohl in Längsachseum 360° gedreht,als auch gegenüberder Längsachse ineinem Winkel von 0° bis90° verschwenktwerden kann. Ferner ist es möglich,die Kanülein jeder gewünschtenPosition zu positionieren und festzulegen, indem die Fixiereinrichtungam Handgriff betätigtwird.Although protection is also separate for the individualItems is sought after with the present invention as a wholea surgical instrument has been created that worksin the bodysignificantly simplified by placing the cannula both in the longitudinal axisrotated by 360 °,as well as oppositethe longitudinal axis inan angle of 0 ° toSwiveled 90 °can be. It is also possiblethe cannulain any desiredPosition and fix position by the fixing deviceoperated on the handlebecomes.

Eine Beschädigung der Kanüle selberoder eine Verletzung durch die Kanüle wird durch das Schutzrohrverhindert, welches durch die beiden ineinander verschiebbaren Rohrabschnittein beliebigen Längenverfügbarist.Damage to the cannula itselfor an injury from the cannula is through the protective tubeprevents which by the two telescoping pipe sectionsin any lengthavailableis.

Die gute Zerlegbarkeit des chirurgischenInstrumentes ermöglichtferner eine optimale Reinigung der einzelnen Elemente, soweit sie,wie beispielsweise die Kanüle,keine Produkte fürden Einmalgebrauch sind.The good disassembly of the surgicalInstrumentesoptimal cleaning of the individual elements, insofar aslike the cannula,no products forare single use.

Das vorliegende Instrument dientvor allem der Reparatur einer anatomischen Gefässwand oder der Wand eineshohlen Organs, wie z. B. des Esophagus, insbesondere im menschlichenKörper.Es dient insbesondere als Anlegezange für ein Verschlusselement zurFixierung eines Implantats, wie z.B. eines Stent oder Stent-graft,in einem vaskulärenoder hohlen Organ von ausserhalb der Gefässwand.The present instrument servesespecially the repair of an anatomical vessel wall or the wall of ahollow organ, such as B. the esophagus, especially in humanBody.It is used in particular as application forceps for a closure elementFixation of an implant, e.g. a stent or stent graft,in a vascularor hollow organ from outside the vessel wall.

Weitere Vorteile, Merkmale und Einzelheitender Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugterAusführungsbeispielesowie anhand der Zeichnung; diese zeigt inOther advantages, features and detailsThe invention is more preferred from the following descriptionembodimentsas well as from the drawing; this shows in

1 eineSeitenansicht eines chirurgischen Instrumentes gemäss der vorliegendenErfindung mit einem Kanüleneinsatzund einer zugehörigenKanüle; 1 a side view of a surgical instrument according to the present invention with a cannula insert and an associated cannula;

2 eineVorderansicht des chirurgischen Instrumentes in1; 2 a front view of the surgical instrument in 1 ;

3 eineRückansichtdes chirurgischen Instrumentes in1; 3 a rear view of the surgical instrument in 1 ;

4 einevergrösserteDarstellung einer Verbindung zwischen dem Kanüleneinsatz und dem chirurgischenInstrument; 4 an enlarged view of a connection between the cannula insert and the surgical instrument;

5 eineSeitenansicht eines Schutzrohres gemäss der vorliegenden Erfindung; 5 a side view of a protective tube according to the present invention;

6a6d jeweils um 90° um eineLängsachsenach rechts gedrehte Ansichten eines Klemmhebels gemäss der vorliegendenErfindung; 6a - 6d views of a clamping lever according to the present invention, each rotated 90 ° to the right about a longitudinal axis;

7 eineSeitenansicht einer Welle zur Verwendung in dem chirurgischen Instrumentin1; 7 a side view of a shaft for use in the surgical instrument in 1 ;

8 einenSchnitt entlang der Linie VIII-VIII durch die Welle in6; 8th a section along the line VIII-VIII through the shaft in 6 ;

9 eineSeitenansicht einer Spannhülsegemässder vorliegenden Erfindung; 9 a side view of an adapter sleeve according to the present invention;

10 eineDraufsicht auf die Spannhülsein8; und 10 a plan view of the adapter sleeve in 8th ; and

11 eineschematische Darstellung der Anordnung der Spannhülse aufder Welle in dem chirurgischen Instrument zusammen mit dem Klemmhebel. 11 is a schematic representation of the arrangement of the clamping sleeve on the shaft in the surgical instrument together with the clamping lever.

Gemäss1 weist ein chirurgisches Instrument1 einenGriff2, ein damit verbundenes Aussenrohr3 sowieeine in dem Aussenrohr3 geführte Zug- und Druckstange4 auf.Der Griff2 besteht aus zwei Griffschenkeln5 und6,welche überein Gelenk7 miteinander verbunden sind. An den jeweiligenEnden der beiden Griffschenkel5 und6 sind Griffschlaufen8 und9 vorgesehen,um die Handhabung des Griffes2 zu erleichtern.According to 1 instructs a surgical instrument 1 a handle 2 , an outer tube connected to it 3 as well as one in the outer tube 3 guided pull and push rod 4 on. The handle 2 consists of two handle legs 5 and 6 which has a joint 7 are interconnected. At the respective ends of the two handle legs 5 and 6 are grip loops 8th and 9 provided to handle the handle 2 to facilitate.

Das der Griffschlaufe9 gegenüberliegendeEnde des Griffschenkels6 weist einen Anschlag10 auf, welcherdie Öffnungder beiden Griffschenkel5 und6 des Griffes2 begrenzt.The handle loop 9 opposite end of the handle leg 6 indicates a stop 10 on which is the opening of the two handle legs 5 and 6 of the handle 2 limited.

Das der Griffschlaufe8 gegenüberliegendeEnde des Griffschenkels5 ist mit einer Krümmung verlängert ausgebildet.In dieser Krümmungdes Griffschenkels5 ist eine Welle12 erkennbar,welcher auf der gegenüberliegenden,also der nicht sichtbaren, Seite ein Klemmhebel13 zugeordnetist. Von diesem Klemmhebel13 ist in dieser Ansicht jedochlediglich ein Griffstück14 zusehen. Die Welle11 wird im folgenden noch ausführlicherbeschrieben.The handle loop 8th opposite end of the handle leg 5 is elongated with a curvature. In this curvature of the handle leg 5 is a wave 12 recognizable, which on the opposite, i.e. not visible, a clamping lever 13 assigned. From this clamp lever 13 is only a handle in this view 14 to see. The wave 11 is described in more detail below.

An dem sich an die Krümmung anschliessendenEnde des Griffschenkels5 ist ein mit einem nicht näher gezeigtenGewinde versehenes Ansatzelement15 angeordnet. Mit diesemist wiederum ein Drehknauf16 drehbar verbunden, an denein Verbindungselement17 und ein weiteres Ansatzelement18 anschliessen.Das darin eingesetzte Aussenrohr3 ist mittels des Drehknaufes16 umeine LängsachseA drehbar.At the end of the handle leg that adjoins the curvature 5 is an attachment element provided with a thread, not shown 15 arranged. With this in turn is a rotary knob 16 rotatably connected to which a connecting element 17 and another approach element 18 connect. The outer tube used in it 3 is by means of the rotary knob 16 rotatable about a longitudinal axis A.

Das dem Ansatzelement18 gegenüberliegendeEnde des Aussenrohres3 ist mit einer Halteraufnahme19 versehen.The approach element 18 opposite end of the outer tube 3 is with a holder holder 19 Mistake.

Die Zug- und Druckstange4,welche einends in dem Griffschenkel6 des Griffes2 gelenkigund drehbar gelagert ist, verläuftim weiteren durch die Krümmungdes Griffschenkels5 und das Aussenrohr3 sowie dieHalteraufnahme19.The pull and push rod 4 which one end in the handle leg 6 of the handle 2 is articulated and rotatable, runs further through the curvature of the handle leg 5 and the outer tube 3 as well as the holder holder 19 ,

Das Ende der Zug- und Druckstange4 weist,wie in4 erkennbar,eine Aufnahme20 zum Andocken eines Kanüleneinsatzes21 auf.Der Kanüleneinsatz21 setztsich aus einer Rasteinrichtung22, einem Hauptteil23 sowieeiner Kanülenaufnahme24 zusammen.Die Kanülenaufnahme24 dientder Aufnahme einer Kanüle25 miteinem zugehörigenSchieber26, welcher einends in die Kanüle25 einschiebbarist. Die Kanüle25 isteinends in einer nicht nähergezeigten Bohrung in der Kanülenaufnahme24 geführt undandernends mit einer schrägauslaufenden Spitze versehen.The end of the pull and push rod 4 points, as in 4 recognizable, a shot 20 to the Ando a cannula insert 21 on. The cannula insert 21 consists of a locking device 22 , a main part 23 and a cannula holder 24 together. The cannula holder 24 is used to hold a cannula 25 with an associated slider 26 which one end in the cannula 25 can be inserted. The cannula 25 is at one end in a bore (not shown in detail) in the cannula holder 24 guided and provided at the other with a sloping tip.

Fürden Schieber26 ist auf der Oberseite des Hauptteils23 hinterder Kanülenaufnahme24 eineMulde27 vorgesehen, in welcher der Schieber26 beimEinfahren in einen menschlichen Körper od. dgl. liegt (siehe1) und nicht verbogen werdenkann, wenn beispielsweise ein Schutzrohr40 von hinten über dengesamten Kanüleneinsatz21 geschobenwird.For the slider 26 is on the top of the main part 23 behind the cannula holder 24 a hollow 27 provided in which the slider 26 when entering a human body or the like (see 1 ) and cannot be bent if, for example, a protective tube 40 from behind over the entire cannula insert 21 is pushed.

Die Kanülenaufnahme24 ist über einGelenk28 mit dem Hauptteil23 verbunden, welchemauf der gegenüberliegendenSeite die Rasteinrichtung22 zugeordnet ist.The cannula holder 24 is about a joint 28 with the main part 23 connected, which on the opposite side of the locking device 22 assigned.

Die Rasteinrichtung22 desKanüleneinsatzes21 weistzum einen eine Kugel29 zur Einlage in die Aufnahme20 derZug- und Druckstange4 aufund zum anderen zwei sich gegenüberliegendeZapfen30 zum Einfahren in eine Nut31 in derHalteaufnahme19 am Ende des Aussenrohres3. Dortrasten die Zapfen30 in einer entsprechenden Ausnehmung32 amEnde der Nut31 ein.The locking device 22 of the cannula insert 21 shows a ball 29 for insertion in the recording 20 the pull and push rod 4 on and on the other two opposite pegs 30 for entering a groove 31 in the holding fixture 19 at the end of the outer tube 3 , The cones rest there 30 in a corresponding recess 32 at the end of the groove 31 on.

Die Kugel29 ist über einenAnschlag33 mit einem Zug- und Druckstangenabschnitt34 verbunden, welcherin einem Führungsansatz35 amHauptteil23 geführtist. An dem Führungsansatz35 sinddie Zapfen30 sich gegenüberliegend angeordnet.The bullet 29 is about a stop 33 with a pull and push rod section 34 connected, which in a leadership approach 35 on the main part 23 is led. At the leadership approach 35 are the cones 30 arranged opposite each other.

Auf nicht näher gezeigte Weise ist derin dem Hauptteil23 gleitende Zug- und Druckstangenabschnitt34 miteinem Gelenk39 ausserhalb der Längsachse A an der Kanülenaufnahme24 verbunden,wodurch, wie im folgenden noch beschrieben wird, die Kanülenaufnahme24 um das Gelenk28 geschwenkt werden kann.In a manner not shown is that in the main part 23 sliding tension and push rod section 34 with one joint 39 outside the longitudinal axis A on the cannula holder 24 connected, whereby, as will be described below, the cannula receptacle 24 around the joint 28 can be pivoted.

Desweiteren ist, gemäss1, auf das Aussenrohr3 sowieauf das Ansatzelement18 und das Verbindungselement17 einSchutzrohr40 aufgesetzt. Das Schutzrohr40 bestehtaus zwei teleskopartig ineinander verschiebbaren Rohrabschnitten41 und42 (siehe5), wobei der Rohrabschnitt42 indem Rohrabschnitt41 geführt ist und mittels eines knaufartigenElementes43 handhabbar ist.Furthermore, according to 1 , on the outer tube 3 as well as on the attachment element 18 and the connecting element 17 a protective tube 40 placed. The protective tube 40 consists of two telescopic tube sections 41 and 42 (please refer 5 ), the pipe section 42 in the pipe section 41 is guided and by means of a knob-like element 43 is manageable.

An dem einen Ende des Rohrabschnittes41 isteinen Stopper44 angeordnet, welcher mit dem knaufartigenElement43 zusammenwirkt, so dass der Rohrabschnitt42 nicht über dasEnde des Rohrabschnittes41 hinaus verschoben werden kann.Das andere Ende des Rohrabschnittes41 weist einen trichterförmigen Aufsatz45 auf,welcher in Gebrauchslage auf das Ansatzelement18 und dasVerbindungselement17 aufgesetzt und an diesen beispielsweise über einennicht nähergezeigten Sprengring befestigt ist. Auf diese Weise kann das Schutzrohr40 festgelegtund wieder leicht entfernt werden.At one end of the pipe section 41 is a stopper 44 arranged, which with the knob-like element 43 cooperates so that the pipe section 42 not over the end of the pipe section 41 can be moved out. The other end of the pipe section 41 has a funnel-shaped attachment 45 on which in use position on the attachment element 18 and the connecting element 17 attached and attached to this for example via a snap ring, not shown. In this way, the protective tube 40 fixed and easily removed again.

Die Rohrabschnitte41 und42 gehenmiteinander eine bajonettartige Verbindung55 ein. Diehierfür notwendigenElemente sind ein Zapfen56 und eine Laufrinne57.Der Zapfen56 ist im Inneren des knaufartigen Elementes43 amEnde des Rohrabschnittes42 und die Laufrinne57 indem Rohrabschnitt41 angeordnet. Der Zapfen56 istin der Laufrinne57 geführt.Die Laufrinne57 ist dabei S-förmig ausgebildet, d.h. ihrejeweiligen Enden58 und59 sind hakenförmig gekrümmt. Durchdie bajonettartige Verbindung55 kann die Gesamtlänge desSchutzrohres40 beliebig verändert werden.The pipe sections 41 and 42 form a bayonet-like connection with each other 55 on. The elements required for this are a pin 56 and a trough 57 , The cone 56 is inside the knob-like element 43 at the end of the pipe section 42 and the gutter 57 in the pipe section 41 arranged. The cone 56 is in the channel 57 guided. The gutter 57 is S-shaped, ie its respective ends 58 and 59 are curved like a hook. Through the bayonet-like connection 55 can the total length of the protective tube 40 can be changed at will.

Von dem Ansatzelement17 ragt,wie aus den2 und3 ersichtlich, seitlich einAnschlussnippel46 ab, auf welchem ein mit einem Aussengewinde47 versehenerKopf48 angeordnet ist. Über das Aussengewinde47 desKopfes48 kann mit dem Anschlussnippel46 beispielsweiseeine Flüssigkeitszufuhrangeschlossen werden, so dass Flüssigkeitdurch den Anschlussnippel46 in das chirurgische Instrument1 gelangt,um bei einer Anwendung im Körperbeispielsweise Blut wegzuspülen.Denkbar ist auch der Anschluss von Druckluft, um beispielsweiseHohlräumeim Körperzu bilden.From the attachment element 17 protrudes like from the 2 and 3 visible, a connection nipple on the side 46 on which one with an external thread 47 provided head 48 is arranged. About the external thread 47 Of the head 48 can with the connection nipple 46 For example, a liquid supply can be connected so that liquid through the connection nipple 46 into the surgical instrument 1 reached, for example, to wash away blood when used in the body. It is also conceivable to connect compressed air to form cavities in the body, for example.

Gemäss3 ist ferner die Anordnung des Klemmhebels13 andem hier nicht sichtbaren Griffschenkeln5 des Griffes2 dargestellt.Der Klemmhebel13 ist, wie in den6a bis6d gezeigt,ein P-förmigesGebilde, dessen oberer Bereich49 eine Bohrung50 aufweist,deren Innenflächemit einzelnen Zähnen51 versehenist. Diese Zähne51 stehenin Gebrauchslage mit einem Zahnkranz52 der Welle12 inEingriff (siehe7).According to 3 is also the arrangement of the clamping lever 13 on the handle legs not visible here 5 of the handle 2 shown. The clamping lever 13 is like in the 6a to 6d shown a P-shaped structure, the upper area 49 a hole 50 has, the inner surface with individual teeth 51 is provided. These teeth 51 are in the use position with a ring gear 52 the wave 12 engaged (see 7 ).

Desweiteren ist in dem oberen Bereich49 desP-förmigenKlemmhebels13 eine Aussparung53 vorgesehen,welche im Gebrauch der Aufnahme eines Zapfes54 an demGriffschenkel5 des Griffes2 dient. Der Zapfen54 (siehe3) dient der Begrenzungder Bewegung des Klemmhebels13.Furthermore is in the upper area 49 of the P-shaped clamping lever 13 a recess 53 provided which is in use of receiving a spigot 54 on the handle leg 5 of the handle 2 serves. The cone 54 (please refer 3 ) serves to limit the movement of the clamping lever 13 ,

Das Griffstück14 des Klemmhebels13 ist,vor allem zur besseren Handhabung des Klemmhebels13, imGegensatz zu dem oberen Bereich49 abgeflacht und verbreitertausgebildet und kragt leicht zur Seite hin von dem oberen Bereich49 desKlemmhebels13 ab.The handle 14 the clamping lever 13 is, especially for better handling of the clamping lever 13 , in contrast to the upper area 49 flattened and widened and protrudes slightly to the side from the upper area 49 the clamping lever 13 from.

Die Welle12, welche in7 verdeutlicht dargestelltist, weist neben dem Zahnkranz52 noch einen Zylinder60 auf,welcher eine glatte Mantelfläche61 besitzt.In die Mantelfläche61 eingelassenist eine Mulde62, welche, wie in dem Querschnitt A-A erkennbar,sichelförmigausgebildet und exzentrisch angeordnet ist und sich nur um einenTeil des Umfangs des Zylinders60 der Welle12 zieht.The wave 12 , what a 7 is shown clearly, points next to the ring gear 52 another cylinder 60 on which has a smooth outer surface 61 has. In the outer surface 61 there is a recess 62 which, as can be seen in the cross section AA, is crescent-shaped and eccentrically arranged and extends only around part of the circumference of the cylinder 60 the wave 12 draws.

Die Mulde62 dient der Aufnahmeeiner Spannhülse63,welche sich aus einem einends abgeschrägten und spitz zulaufendenHülsenabschnitt64 undeinem Ring65 zusammensetzt. Dabei ist ein Aussendurchmessera1 des Ringes65 grösser alsein Aussendurchmesser a3 des Hülsenabschnittes64,wohingegen ein Innendurchmesser a2 des Ringes65 gleicheinem Innendurchmesser a4 des Hülsenabschnittes64 ist.Somit ergibt sich eine gleichmässigeBohrung66 durch die Spannhülse63.The hollow 62 serves to hold an adapter sleeve 63 , which consists of a one-sided beveled and tapered sleeve section 64 and a ring 65 composed. There is an outside break knife a1 of the ring 65 larger than an outer diameter a3 of the sleeve section 64 , whereas an inner diameter a2 of the ring 65 equal to an inner diameter a4 of the sleeve section 64 is. This results in an even bore 66 through the adapter sleeve 63 ,

Sowohl der Ring65 als auchder Hülsenabschnitt64 derSpannhülse63 werdenan einer Seite, wie in10 ersichtlich,von einem Schlitz67 durchzogen. Der Schlitz67 weistdabei ein Breite b auf. Der Ring65, der mehr Werkstoffals der Hülsenabschnitt64 besitzt,wirkt einem Schliessen des Schlitzes67 entgegen, so dassauch nach einem längerenSchliessen der Schlitz67 sich selbständig öffnet.Both the ring 65 as well as the sleeve section 64 the adapter sleeve 63 are on one side, as in 10 seen from a slit 67 traversed. The slot 67 has a width b. The ring 65 which is more material than the sleeve section 64 possesses, acts to close the slot 67 counter, so that even after a long closing the slot 67 opens automatically.

Gemäss11 ist die Anordnung bzw. die Lage derWelle12 in einer Querbohrung11 in dem Griffschenkel5 desGriffes2 sowie die Anordnung der Spannhülse63 inder Mulde62 der Welle12 gezeigt. Desweiterenwird durch einen Pfeil68 die Anordnung des Klemmhebels13 aufdem Zahnkranz52 der Welle12 angedeutet.According to 11 is the arrangement or location of the shaft 12 in a cross hole 11 in the handle leg 5 of the handle 2 as well as the arrangement of the adapter sleeve 63 in the hollow 62 the wave 12 shown. Furthermore, by an arrow 68 the arrangement of the clamping lever 13 on the ring gear 52 the wave 12 indicated.

Die Funktionsweise der vorliegendenErfindung ist folgende: Um das chirurgische Instrument1 funktionstüchtig zumachen, muss dieses zunächstmit dem Kanüleneinsatz21 undder Kanüle25 verbundenwerden. Hierzu sind die beiden Rohrabschnitte41 und42 desSchutzrohres40 entlang der bajonettartigen Verbindung55 vollständig ineinanderverschoben, so dass die Halteraufnahme19 am Ende des Aussenrohres3 freiliegt.In die Halteraufnahme19 wird anschliessend der Kanüleneinsatz21 eingesetzt.Dies geschieht wie folgt.The operation of the present invention is as follows: To the surgical instrument 1 To make it work properly, this must first be done with the cannula insert 21 and the cannula 25 get connected. For this purpose, the two pipe sections 41 and 42 of the protective tube 40 along the bayonet-like connection 55 completely shifted into each other so that the holder holder 19 at the end of the outer tube 3 exposed. In the holder holder 19 then the cannula insert 21 used. This is done as follows.

Zunächst werden die Griffschenkel5 und6 desGriffes2 vollständiggeöffnet,so dass die Zug- und Druckstange4 so weit wie möglich ausder Halteraufnahme19 fährt.Anschliessend wird die Kugel29 der Rasteinrichtung22 indie Aufnahme20 der Zug- und Druckstange4 vonder Seite her eingelegt bzw. eingehängt. Der Anschlag33 hinterder Kugel29 liegt dabei an einem Rand69 derZug- und Druckstange4 an.First, the handle legs 5 and 6 of the handle 2 fully open, so the pull and push rod 4 as far as possible from the holder holder 19 moves. Then the ball 29 the locking device 22 in the recording 20 the pull and push rod 4 inserted or suspended from the side. The attack 33 behind the ball 29 lies on an edge 69 the pull and push rod 4 on.

Anschliessend werden die beiden Griffschenkel5 und6 desGriffes2 wieder vollständiggeschlossen. Dadurch wird die Zug- und Druckstange4 mitsamtdem Kanüleneinsatz21 nachhinten gezogen. Bei einem vollständigenSchliessen der beiden Griffschenkel5 und6 fahrengleichzeitig die beiden Zapfen30 in die Nuten31 einbzw. rasten in den Ausnehmungen32 der Halteraufnahme19 ein.Der Kanüleneinsatz21 istnun sicher mit dem chirurgischen Instrument1 verbunden,wobei jedoch der Zug- und Druckstangenabschnitt34 axialbewegbar bleibt.Then the two handle legs 5 and 6 of the handle 2 completely closed again. This will pull and push the rod 4 together with the cannula insert 21 pulled back. When both handle legs are closed completely 5 and 6 move the two pins at the same time 30 in the grooves 31 or snap into the recesses 32 the holder holder 19 on. The cannula insert 21 is now safe with the surgical instrument 1 connected, however, the pull and push rod section 34 remains axially movable.

Aufgrund der Lagerung der Zapfen30 inder Ausnehmung32 der Halteraufnahme19 des Aussenrohres3 kanndurch Drehen des Drehknaufes16, wodurch das Aussenrohr3 gedrehtwird, auch die Halteraufnahme19, mit ihr die hier eingerastetenZapfen30 und damit der gesamte Kanüleneinsatz21 um dieLängsachseA gedreht werden.Due to the storage of the cones 30 in the recess 32 the holder holder 19 of the outer tube 3 can be done by turning the rotary knob 16 , causing the outer tube 3 is rotated, also the holder holder 19 , with her the pins locked here 30 and thus the entire cannula insert 21 be rotated about the longitudinal axis A.

Neben der Drehung und Bewegung desKanüleneinsatzes21 entlangund um die LängsachseA lässt sichdie Kanülenaufnahme24,in welcher die Kanüle25 angeordnetist, ferner mittels eines Drahtes38 od. dgl. Verbindungselementes,welcher mit dem nicht sichtbaren Ende der Zug- und Druckstange34 verbundenist, um das Gelenk28 und gegenüber der Längsachse A verschwenken.In addition to the rotation and movement of the cannula insert 21 along and around the longitudinal axis A can the cannula holder 24 in which the cannula 25 is arranged, further by means of a wire 38 od. Like. Connecting element, which with the invisible end of the pull and push rod 34 is connected to the joint 28 and pivot relative to the longitudinal axis A.

Um nun den Kanüleneinsatz21 bzw.die Kanüle25 selbstbeispielsweise währenddem Einfahren in einen Körperzu schützenund auch, um Verletzungen durch die Kanüle25 vorzubeugen,wird der Rohrabschnitt42 des Schutzrohres40 nachdem Ansetzen des Kanüleneinsatzes21 andas chirurgische Instrument1 wieder ausgefahren. Hierzuwird an dem knaufartigen Element43 gedreht. Die auf derInnenseite des knaufartigen Elementes43 angeordneten Zapfen56 werdenso aus der jeweiligen Krümmung58 bzw.59 andem jeweiligen Ende der Laufrinne57 der bajonettartigenVerbindung55 bewegt und entlang der Laufrinne57 verschoben,wo sie dann in die Krümmung58 durcherneutes Drehen des knaufartigen Elementes43, dieses Mal indie entgegengesetzte Richtung, einfahren. In dieser Stellung istder Rohrabschnitt42 so weit über den Kanüleneinsatz21 hinausausgefahren, dass die Kanüle25 gutgeschütztist.Now around the cannula insert 21 or the cannula 25 to protect yourself for example while entering a body and also to prevent injuries from the cannula 25 to prevent the pipe section 42 of the protective tube 40 after attaching the cannula insert 21 to the surgical instrument 1 extended again. This is done on the knob-like element 43 turned. The one on the inside of the knob-like element 43 arranged spigot 56 become from the respective curvature 58 respectively. 59 at the respective end of the channel 57 the bayonet-like connection 55 moved and along the channel 57 shifted to where it is then in the curve 58 by turning the knob-like element again 43 , this time in the opposite direction. The pipe section is in this position 42 so far over the cannula insert 21 extended that cannula 25 is well protected.

Ist die Kanüle25 an ihrem Ortder Anwendung angelangt, so könnendie beiden Rohrabschnitte41 und42 wieder ineinanderverschoben werden. Nun kann die Kanüle25 frei verschwenktund verdreht werden. Hat sie jedoch ihr gewünschte Position und Stellungerreicht, so muss die Möglichkeitbestehen, die Kanüle25 feststellenzu können.Dies ist zum einen notwendig, um ein genaues Arbeiten mit der Kanüle25 zuermöglichenund zum anderen, um eine Beschädigungder Kanüleselber oder eine Beschädigungumliegender Gewebeteile durch sie zu verhindern.Is the cannula 25 Arrived at their place of use, the two pipe sections 41 and 42 can be moved into each other again. Now the cannula can 25 can be freely pivoted and twisted. However, once it has reached its desired position and position, there must be the option of using the cannula 25 to be able to determine. On the one hand, this is necessary in order to work precisely with the cannula 25 to enable and on the other hand to prevent damage to the cannula itself or damage to surrounding tissue parts by it.

Hierzu kann die Kanüle25 mittelsdes Klemmhebels13 an dem Griffschenkel5 desGriffes2 festgelegt werden. Dies erfolgt durch Festlegender Zug- und Druckstange4, da die Zug- und Druckstange4 inder Spannhülse63 geführt ist,welche in dem Griffschenkel5 des Griffes2 aufder Mulde62 im Zylinder60 der Welle12 aufliegt.The cannula can be used for this purpose 25 by means of the clamping lever 13 on the handle leg 5 of the handle 2 be determined. This is done by setting the pull and push rod 4 , because the pull and push rod 4 in the adapter sleeve 63 is guided, which in the handle leg 5 of the handle 2 on the hollow 62 in the cylinder 60 the wave 12 rests.

Soll die Zug- und Druckstange4 unddamit die Kanüle25 festgelegtwerden, so wird der Klemmhebel13, welcher mittels denZähnen51 aufdem Zahnkranz52 der Welle12 drehfest aufsitzt,nach links oder rechts bewegt. Dadurch bewegt sich auch die Welle12 undsomit die Mulde62 des Zylinders60.Should the pull and push rod 4 and with it the cannula 25 are set, so the clamping lever 13 which by means of teeth 51 on the ring gear 52 the wave 12 seated against rotation, moved to the left or right. This also causes the shaft to move 12 and thus the trough 62 of the cylinder 60 ,

Der Zapfen54 an dem Griffschenkel5 desGriffes2 wirkt dabei mit der Aussparung53 desKlemmhebels13 zusammen, um die Drehung des Klemmhebels13 indie eine oder die andere Richtung zu begrenzen.The cone 54 on the handle leg 5 of the handle 2 acts with the recess 53 the clamping lever 13 together to rotate the clamp lever 13 limit in one direction or the other.

Durch die Drehung der Mulde62 wirddie Breite b des Schlitzes67 der Spannhülse63 aufgrundder Sichelform der Mulde62 verringert. Mit zunehmendemDrehen des Klemmhebels13 und damit der Welle12 wirdsomit die Breite b des Schlitzes67 soweit verringert,dass die Zug- und Druckstange4, welche in der Spannhülse63 geführt ist,eingeklemmt wird. Die Zug- und Druckstange4 und folglichauch der Kanüleneinsatz21 können nunnicht mehr vor oder zurückbewegtund nicht mehr gedreht werden. Desweiteren kann die Kanüle25 gegenüber derLängsachseA nicht mehr verschwenkt werden und ist, zusammen mit dem Kanüleneinsatz21,in ihrer gewollten Position und Stellung festgelegt.By turning the trough 62 becomes the width b of the slot 67 the adapter sleeve 63 due to the Crescent shape of the hollow 62 reduced. With increasing rotation of the clamping lever 13 and thus the wave 12 thus becomes the width b of the slot 67 reduced so far that the pull and push rod 4 which in the adapter sleeve 63 is guided, is pinched. The pull and push rod 4 and consequently the cannula insert 21 can no longer be moved forward or back and can no longer be rotated. Furthermore, the cannula 25 can no longer be pivoted with respect to the longitudinal axis A and is, together with the cannula insert 21 , in their desired position and position.

Anschliessend kann beispielsweiseein sich in der Kanülebefindender T-Anker mittels eines weiteren, hier nicht näher gezeigtenInstrumentes aus der Kanüle25 ausgestossenwerden, indem dieses Instrument von hinten auf den Schieber26 drückt, woraufdieser wiederum in die Kanüle25 einfährt undden T-Anker od. dgl. herausdrückt.Then, for example, a T-anchor located in the cannula can be removed from the cannula by means of a further instrument, not shown here 25 be expelled by this instrument from behind on the slider 26 presses, which then in turn into the cannula 25 retracts and pushes out the T-anchor or the like.

Soll die Festlegung des Kanüleneinsatzes21 rückgängig gemachtwerden, muss lediglich der Klemmhebel13 in die entgegengesetzteRichtung gedreht werden. Dadurch vergrössert sich die Breite b desSchlitzes67 der Spannhülse63 undeine Bewegung der Zug- und Druckstange4 ist wieder möglich.Is the definition of the cannula insert 21 can only be undone, the clamping lever only 13 be turned in the opposite direction. This increases the width b of the slot 67 the adapter sleeve 63 and a movement of the pull and push rod 4 is possible again.

Ein Lösen des Kanüleneinsatzes21 vondem chirurgischen Instrument1 nach Beendigung des Anwendungerfolgt auf die umgekehrte Weise, indem die beiden Griffschenkel5 und6 desGriffes2 erneut so weit wie möglich geöffnet werden. Hierdurch wirdder Widerstand, welcher aufgrund der in der Ausnehmung32 derHalteraufnahme19 eingerasteten Zapfen30 derRasteinrichtung22 vorliegt, durch den Druck der Zug- und Druckstange4 überwunden.Die Zapfen30 werden durch die Zug- und Druckstange4 ausder Nut31 der Halteraufnahme19 herausgedrückt unddie Kugel29 der Rasteinrichtung22 kann aus derAufnahme20 der Zug- und Druckstange4 herausgenommenwerden. Die Verbindung zwischen dem Kanüleneinsatz21 und demchirurgischen Instrument besteht nicht mehr.A loosening of the cannula insert 21 from the surgical instrument 1 after the application is done in the reverse way, by the two handle legs 5 and 6 of the handle 2 opened again as far as possible. This causes the resistance, which is due to the in the recess 32 the holder holder 19 locked pin 30 the locking device 22 due to the pressure of the pull and push rod 4 overcome. The cones 30 are through the pull and push rod 4 out of the groove 31 the holder holder 19 pushed out and the ball 29 the locking device 22 can from the recording 20 the pull and push rod 4 be taken out. The connection between the cannula insert 21 and the surgical instrument no longer exists.

Positionszahlenliste

Figure 00210001
Position Number List
Figure 00210001

Claims (31)

Translated fromGerman
Chirurgisches Instrument zum Fixieren eines Elementes,insbesondere eines Implantates, in einem Körper mittels einem Fixierelement,wobei das Fixierelement in oder an einer Halterung (25),insbesondere in einer Kanüle,an einem Zug- und/oder Druckelement (4) angeordnet ist,welches in einer Führung(3) entlang einer Längsachse(A) geführtist,dadurch gekennzeichnet, dass die Halterung (25)um die Längsachse(A) drehbar und/oder gegenüberder Längsachse(A) schwenkbar ist. ist.Surgical instrument for fixing an element, in particular an implant, in a body by means of a fixing element, the fixing element in or on a holder ( 25 ), in particular in a cannula, on a tension and / or pressure element ( 4 ) is arranged, which in a guide ( 3 ) is guided along a longitudinal axis (A),characterized in that the holder ( 25 ) is rotatable about the longitudinal axis (A) and / or pivotable with respect to the longitudinal axis (A). is.Chirurgisches Instrument nach Anspruch 1, dadurchgekennzeichnet, dass die Halterung (25) zwischen 0° bis 90° gegenüber derLängsachse(A) schwenkbar ist.Surgical instrument according to claim 1, characterized in that the holder ( 25 ) is pivotable between 0 ° to 90 ° with respect to the longitudinal axis (A).Chirurgisches Instrument nach Anspruch 1 oder 2,dadurch gekennzeichnet, dass die Halterung (25) um 360° drehbarist.Surgical instrument according to claim 1 or 2, characterized in that the holder ( 25 ) can be rotated through 360 °.Chirurgisches Instrument nach einem der Ansprüche 1 bis3, dadurch gekennzeichnet, dass die Kanüle (25) in einer Kanülenaufnahme(24) geführtist.Surgical instrument according to one of claims 1 to 3, characterized in that the cannula ( 25 ) in a cannula holder ( 24 ) is performed.Chirurgisches Instrument nach Anspruch 5, dadurchgekennzeichnet, dass die Kanülenaufnahme(24) überein Gelenk (28) mit einem Hauptteil (23) einesKanüleneinsatz(21) verbunden ist.Surgical instrument according to claim 5, characterized in that the cannula holder ( 24 ) via a joint ( 28 ) with a main part ( 23 ) a cannula insert ( 21 ) connected is.Chirurgisches Instrument nach Anspruch 6, dadurchgekennzeichnet, dass dem Hauptteil (23) des Kanüleneinsatzes(21) ein Zug- und Druckstangenabschnitt (34) zugeordnetund dieser übereine Rasteinrichtung (22) lösbar mit dem Zug- und/oder Druckelement(4) verbunden ist.Surgical instrument according to claim 6, characterized in that the main part ( 23 ) of the cannula insert ( 21 ) a pull and push rod section ( 34 ) assigned and this via a locking device ( 22 ) detachable with the tension and / or pressure element ( 4 ) connected is.Chirurgisches Instrument nach Anspruch 6, dadurchgekennzeichnet, dass die Rasteinrichtung (22) sich gegenüberliegendeZapfen (30) und eine Kugel (29) aufweist.Surgical instrument according to claim 6, characterized in that the latching device ( 22 ) opposite pins ( 30 ) and a ball ( 29 ) having.Chirurgisches Instrument nach Anspruch 7, dadurchgekennzeichnet, das die Kugel (29) an dem Zug- und Druckstangenabschnitt(34) und die Zapfen (30) an einem Führungsansatz(35) an dem Hauptteil (23) angeordnet sind.Surgical instrument according to claim 7, characterized in that the ball ( 29 ) on the pull and push rod section ( 34 ) and the cones ( 30 ) on a leadership approach ( 35 ) on the main part ( 23 ) are arranged.Chirurgisches Instrument nach Anspruch 9, dadurchgekennzeichnet, dass die Kugel (29) mit einer Aufnahme(20) am distalen Ende der Zug- und Druckstange (4)in Eingriff steht.Surgical instrument according to claim 9, characterized in that the ball ( 29 ) with a recording ( 20 ) at the distal end of the pull and push rod ( 4 ) is engaged.Chirurgisches Instrument nach Anspruch 8 oder 9,dadurch gekennzeichnet, das die Zapfen (30) mit Nuten (31)bzw. Ausnehmungen (32) einer Halteraufnahme (19)am distalen Ende des Aussenrohres (3) in Eingriff stehen.Surgical instrument according to claim 8 or 9, characterized in that the pins ( 30 ) with grooves ( 31 ) or recesses ( 32 ) a holder holder ( 19 ) at the distal end of the outer tube ( 3 ) are engaged.Chirurgisches Instrument nach wenigstens einem derAnsprüche6 bis 10, dadurch gekennzeichnet, dass das andere Ende des Zug-und Druckstangenabschnittes (34) mit der Kanülenaufnahme(24) gelenkig verbunden ist.Surgical instrument according to at least one of claims 6 to 10, characterized in that the other end of the pull and push rod section ( 34 ) with the cannula holder ( 24 ) is articulated.Chirurgisches Instrument nach wenigstens einem derAnsprüche1 bis 11, dadurch gekennzeichnet, dass die Zug- und Druckstange(4) andernends an einem Griffschenkel (6) einesGriffes (2) angekoppelt ist.Surgical instrument according to at least one of claims 1 to 11, characterized in that the pull and push rod ( 4 ) elsewhere on a handle leg ( 6 ) of a handle ( 2 ) is coupled.Chirurgisches Instrument nach Anspruch 12, dadurchgekennzeichnet, dass die Zug- und Druckstange (4) mittelsdes Griffschenkels (6) axial bewegbar ist.Surgical instrument according to claim 12, characterized in that the pull and push rod ( 4 ) by means of the handle leg ( 6 ) is axially movable.Chirurgisches Instrument nach wenigstens einem derAnsprüche1 bis 13, dadurch gekennzeichnet, dass an der als Aussenrohr (3)ausgebildeten Führungein Drehknauf (16) zum Drehen des Aussenrohres (3) unddamit der Kanüle(25) um die Längsachse(A) vorgesehen ist.Surgical instrument according to at least one of Claims 1 to 13, characterized in that the outer tube ( 3 ) trained guide a rotary knob ( 16 ) for turning the outer tube ( 3 ) and thus the cannula ( 25 ) around the longitudinal axis (A) is provided.Chirurgisches Instrument mit einem Aussenrohr (3)und zumindest einem Arbeitselement (21), das mit dem Aussenrohr(3) verbunden ist, dadurch gekennzeichnet, dass auf dasAussenrohr (3) ein Schutzrohr (40) aufgesetztist, welches aus zwei teleskopartig ineinander verschiebbaren Rohrabschnitten(41,42) besteht, wovon ein Rohrabschnitt (42)das Arbeitselement (21) zumindest teilweise entfernbarumhüllt.Surgical instrument with an outer tube ( 3 ) and at least one working element ( 21 ) with the outer tube ( 3 ), characterized in that on the outer tube ( 3 ) a protective tube ( 40 ) is placed, which consists of two telescopically movable tube sections ( 41 . 42 ), of which a pipe section ( 42 ) the working element ( 21 ) at least partially encased removably.Chirurgisches Instrument nach Anspruch 22, dadurchgekennzeichnet, dass die beiden Rohrabschnitte (41,42)mittels einer bajonettartigen Verbindung (55) miteinanderverbunden sind.Surgical instrument according to claim 22, characterized in that the two tube sections ( 41 . 42 ) by means of a bayonet-like connection ( 55 ) are connected.Chirurgisches Instrument nach Anspruch 15 oder 16,dadurch gekennzeichnet, dass ein Ende des Rohrabschnittes (41)mit einem trichterförmigen Aufsatz(45) zum Aufsetzen auf ein Verbindungselement (17) versehenist.Surgical instrument according to claim 15 or 16, characterized in that one end of the tube section ( 41 ) with a funnel-shaped attachment ( 45 ) to be placed on a connecting element ( 17 ) is provided.Chirurgisches Instrument nach einem der Ansprüche 15 bis17, dadurch gekennzeichnet, dass ein gegenüberliegendes Ende des Rohrabschnittes(41) mit einem Stopper (44) versehen ist, derdie Bewegung des Rohrabschnittes (42) beim Ausfahren begrenzt.Surgical instrument according to one of claims 15 to 17, characterized in that an opposite end of the tube section ( 41 ) with a stopper ( 44 ) is provided, which the movement of the pipe section ( 42 ) limited when extending.Chirurgisches Instrument nach wenigstens einem derAnsprüche15 bis 18, dadurch gekennzeichnet, dass der Rohrabschnitt (42)einends mit einem knaufartigen Element (43) verbunden ist,das auf dem Rohrabschnitt (41) gleitet.Surgical instrument according to at least one of claims 15 to 18, characterized in that the tube section ( 42 ) in the end with a knob-like element ( 43 ) connected on the pipe section ( 41 ) slides.Chirurgisches Instrument nach Anspruch 19, dadurchgekennzeichnet, dass das knaufartige Element (43) in seinemInneren mit zumindest einem Zapfen (56) versehen ist, über denes mit dem Rohrabschnitt (42) verbunden ist.Surgical instrument according to claim 19, characterized in that the knob-like element ( 43 ) inside with at least one pin ( 56 ) over which it is connected to the pipe section ( 42 ) connected is.Chirurgisches Instrument nach Anspruch 20, dadurchgekennzeichnet, dass der Zapfen (56) in Krümmungen(58,59) bzw. in einer Laufrinne (57)in dem Rohrabschnitt (41) geführt ist.Surgical instrument according to claim 20, characterized in that the pin ( 56 ) in Krüm mungen ( 58 . 59 ) or in a channel ( 57 ) in the pipe section ( 41 ) is performed.Chirurgisches Instrument mit einem in einem Aussenrohr(3) geführtenZug- und/oder Druckelement (4), wobei dem Zug- und/oderDruckelement (4) eine Fixiereinrichtung zugeordnet ist,dadurch gekennzeichnet, dass die Fixiereinrichtung eine auf dasZug- und/oder Druckelement (4) aufgesetzte Spannhülse (63)aufweist, deren Durchmesser (a1 bis a4) veränderbarsind.Surgical instrument with an in an outer tube ( 3 ) guided tension and / or pressure element ( 4 ), the tension and / or pressure element ( 4 ) a fixation device is assigned, characterized in that the fixation device has a tension and / or pressure element ( 4 ) attached adapter sleeve ( 63 ), whose diameter (a1 to a4 ) can be changed.Chirurgisches Instrument nach Anspruch 22, dadurchgekennzeichnet, dass die Spannhülse(63) einen Hülsenabschnitt(64) und einen Rind (65) aufweist.Surgical instrument according to claim 22, characterized in that the clamping sleeve ( 63 ) a sleeve section ( 64 ) and a beef ( 65 ) having.Chirurgisches Instrument nach Anspruch 23, dadurchgekennzeichnet, dass ein Aussendurchmesser (a1)des Ringes (65) grösserist als der Aussendurchmesser (a3) des Hülsenabschnittes(64).Surgical instrument according to claim 23, characterized in that an outer diameter (a1 ) of the ring ( 65 ) is larger than the outer diameter (a3 ) of the sleeve section ( 64 ).Chirurgisches Instrument nach Anspruch 23 oder 24,dadurch gekennzeichnet, dass ein Innendurchmesser (a2)des Ringes (65) gleich dem Innendurchmesser (a4)des Hülsenabschnittes(64) ist.Surgical instrument according to claim 23 or 24, characterized in that an inner diameter (a2 ) of the ring ( 65 ) equal to the inside diameter (a4 ) of the sleeve section ( 64 ) is.Chirurgisches Instrument nach Anspruch 23, dadurchgekennzeichnet, dass ein Schlitz (67) in den Hülsenabschnitt(64) und den Ring (65) eingeformt ist.Surgical instrument according to claim 23, characterized in that a slot ( 67 ) in the sleeve section ( 64 ) and the ring ( 65 ) is molded.Chirurgisches Instrument nach wenigstens einem derAnsprüche22 bis 26, dadurch gekennzeichnet, dass die Spannhülse (63)in einer Mulde (62) eines Zylinders (60) einerWelle (12) liegt.Surgical instrument according to at least one of claims 22 to 26, characterized in that the clamping sleeve ( 63 ) in a hollow ( 62 ) of a cylinder ( 60 ) a wave ( 12 ) lies.Chirurgisches Instrument nach Anspruch 27, dadurchgekennzeichnet, dass die Mulde (62) exzentrisch und sichelförmig angeordnetist.Surgical instrument according to claim 27, characterized in that the trough ( 62 ) is arranged eccentrically and sickle-shaped.Chirurgisches Instrument nach Anspruch 28, dadurchgekennzeichnet, dass die Welle (12) einen Zahnkranz (52)aufweist, der mit einer mit Zähnen(51) versehenen Bohrung (50) an einem Kopf (49)eines Klemmhebels (13) in Eingriff steht.Surgical instrument according to claim 28, characterized in that the shaft ( 12 ) a ring gear ( 52 ) with one with teeth ( 51 ) provided bore ( 50 ) on one head ( 49 ) a clamping lever ( 13 ) is engaged.Chirurgisches Instrument nach Anspruch 29, dadurchgekennzeichnet, dass der Klemmhebel (13) eine Aussparung(53) aufweist.Surgical instrument according to claim 29, characterized in that the clamping lever ( 13 ) a recess ( 53 ) having.Chirurgisches Instrument nach Anspruch 30, dadurchgekennzeichnet, dass die Aussparung (53) der Aufnahme einesZapfens (54) an dem Griffschenkel (5) des Griffes(2) dient.Surgical instrument according to claim 30, characterized in that the recess ( 53 ) the inclusion of a pin ( 54 ) on the handle leg ( 5 ) of the handle ( 2 ) serves.
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