DE202007016233U1 - Surgical forceps - Google Patents
Surgical forceps Download PDFInfo
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- DE202007016233U1 DE202007016233U1 DE200720016233 DE202007016233U DE202007016233U1 DE 202007016233 U1 DE202007016233 U1 DE 202007016233U1 DE 200720016233 DE200720016233 DE 200720016233 DE 202007016233 U DE202007016233 U DE 202007016233U DE 202007016233 U1 DE202007016233 U1 DE 202007016233U1
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- slip
- tweezers
- tweezers according
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- electrically conductive
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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
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/30—Surgical pincettes without pivotal connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
- A61B2017/00473—Distal part, e.g. tip or head
-
- 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
- A61B2018/1462—Tweezers
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Otolaryngology (AREA)
- Surgical Instruments (AREA)
Abstract
Chirurgische Pinzette mit einem zwei federnd gegeneinander drückbare Branchen umfassenden Griffteil, von denen jede eine Pinzettenspitze trägt, dadurch gekennzeichnet, dass jede Pinzettenspitze (20) Teil eines Aufsteckelementes (6, 7) ist, welches Aufsteckelement (6, 7) jeweils auf eine der beiden Branchen (4, 5) aufsteckbar und dadurch an dieser Branche (4, 5) festlegbar ist, und dass an den Aufsteckelementen (6, 7) und an den Branchen (4, 5) Ausrichtglieder (12, 24) vorgesehen sind, die die Aufsteckelemente (6, 7) und die Branchen (4, 5) beim Aufstecken der Aufsteckelemente (6, 7) auf die Branchen (4, 5) in eine definierte Lage relativ zu den Branchen (4, 5) lenken.surgical Tweezers with a handle part which comprises two branches which can be pressed against one another resiliently, each carrying a tweezer tip, characterized each tweezer tip (20) is part of a slip-on element (6, 7), which plug-on element (6, 7) in each case on one of the two Sectors (4, 5) attachable and thus to this industry (4, 5) can be fixed, and that on the Aufsteckelementen (6, 7) and at the sectors (4, 5) alignment members (12, 24) are provided which the Aufsteckelemente (6, 7) and the branches (4, 5) when plugging the Aufsteckelemente (6, 7) on the branches (4, 5) in a defined Steering position relative to the branches (4, 5).
Description
Die Erfindung betrifft eine chirurgische Pinzette mit einem zwei federnd gegeneinander drückbare Branchen umfassenden Griffteil, von denen jede eine Pinzettenspitze trägt. The The invention relates to a surgical forceps with a two-spring pressed against each other Industries comprehensive grip part, each of which is a tweezer tip wearing.
Chirurgische Pinzetten dieser Art werden bei medizinischen Operationen in vielfältiger Weise eingesetzt, teils als reine Greifwerkzeuge, teils auch zum Koagulieren von zwischen den Pinzettenspitzen angeordnetem Gewebe, in diesen Fällen werden die Pinzettenspitzen einpolig oder zweipolig mit einer elektrischen Spannungsquelle verbunden.surgical Tweezers of this type are used in medical operations in a variety of ways used, partly as pure gripping tools, partly also for coagulation from between the tweezer tips arranged tissue, in this make The tweezer tips are single-pole or bipolar with an electric Voltage source connected.
Es ist üblich, die Branchen der Pinzetten einstückig auszubilden, so dass insbesondere im medizinischen Bereich der Herstellungsaufwand relativ hoch ist, insbesondere verhindert dies in vielen Fällen, chirurgische Pinzetten als Wegwerfteile auszubilden.It is common, the branches of tweezers in one piece form, so that in particular in the medical field, the production cost is relatively high, in particular, this prevents in many cases, surgical To form tweezers as disposable parts.
Es ist Aufgabe der Erfindung, eine gattungsgemäße chirurgische Pinzette so auszubilden, dass der Herstellungsaufwand herabgesetzt werden kann.It Object of the invention, a generic surgical tweezers so to train that the manufacturing cost can be reduced.
Diese Aufgabe wird bei einer chirurgischen Pinzette der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, dass jede Pinzettenspitze Teil eines Aufsteckelementes ist, welches Aufsteckelement jeweils auf eine der beiden Branchen aufsteckbar und dadurch an dieser Branche festlegbar ist, und dass an den Aufsteckelementen und an den Branchen Ausrichtglieder vorgesehen sind, die die Aufsteckelemente und die Branchen beim Aufstecken der Aufsteckelemente auf die Branchen in eine definierte Lage relativ zu den Branchen lenken.These Task is in surgical tweezers described above Type according to the invention thereby solved, that each tweezers tip is part of a slip-on, which Plug-in element attachable to one of the two branches and thus can be fixed to this industry, and that on the slip-on elements and at the branches alignment members are provided, which are the Aufsteckelemente and the industries when attaching the slip-on elements to the branches to steer in a defined position relative to the branches.
Auf diese Weise sind die Branchen der chirurgischen Pinzette unterteilt in die eigentlichen Branchen, die Teil des Griffteiles sind, und in die Aufsteckelemente, die orientierungsrichtig auf die Branchen aufsteckbar sind. Es ist daher möglich, in einfacher Weise die Aufsteckelemente auszuwechseln, so dass dasselbe Griffteil wiederholt eingesetzt werden kann, auch wenn die Pinzettenspitzen für jeden Einsatzfall neu gewählt werden, wenn also die Aufsteckelemente als Wegwerfteile konzipiert sind.On this way, the branches of surgical tweezers are divided into the actual industries that are part of the grip, and in the slip-on elements, which can be attached correctly to the branches are. It is therefore possible in a simple way replace the Aufsteckelemente so that the same Handle part can be used repeatedly, even if the tweezer tips for each New application selected So when the slip-on designed as disposable parts are.
Das Aufstecken der Aufsteckelemente wird dabei erleichtert durch die Ausrichtglieder, die dafür sorgen, dass die Aufsteckelemente beim Aufstecken auf die Branchen in der richtigen Orientierung zu den Branchen stehen und diese Orientierung im aufgesteckten Zustand auch beibehalten.The Plugging the Aufsteckelemente is facilitated by the Alignment members who ensure that the Aufsteckelemente when plugging on the branches in the correct orientation to the industries and this orientation also maintained in the plugged state.
Es ist besonders vorteilhaft, wenn zur Ausbildung einer Steckverbindung zwischen den Branchen und den Aufsteckelementen eines der beiden Teile eine Steckhülse und das andere einen in diese einschiebbaren, an deren Innenwand anliegenden Lagerzapfen aufweist. Auf diese Weise erhält man zwischen der Steckhülse und dem Lagerzapfen eine sehr stabile Verbindung, die auch Biegemomente gut aufnehmen kann und die in einfachster Weise herzustellen ist.It is particularly advantageous when the formation of a connector between the branches and the slip-on elements of one of the two Parts a socket and the other one in this insertable, on the inner wall having adjacent journal. In this way you get between the socket and the journal a very stable connection, which also has bending moments can absorb well and is the simplest way to produce.
Es ist weiterhin günstig, wenn Verriegelungsmittel vorgesehen sind, die das Aufsteckelement und die Branche gegen eine axiale Verschiebung sichern, wenn das Aufsteckelement auf die Branche aufgesteckt ist.It is still cheap, when locking means are provided which the slip-on and secure the industry against axial displacement if that Plug-on element is attached to the industry.
Insbesondere können die Verriegelungsmittel einen Rastvorsprung und einen Rastrücksprung umfassen, die beim Aufstecken des Aufsteckelementes auf die Branche elastisch miteinander verrasten. Die Verriegelungsmittel werden also selbsttätig wirksam, wenn das Aufsteckelement auf die Branche aufgesteckt wird.Especially can the locking means comprise a latching projection and a latching recess, the elastic when attaching the Aufsteckelementes on the industry lock together. The locking means are thus automatically effective, when the slip-on is attached to the industry.
Bei einer besonderen Ausführungsform ist vorgesehen, dass die Steckhülse ein Fenster aufweist, in das ein Rastvorsprung an dem Lagerzapfen eintaucht, wenn das Aufsteckelement auf die Branche aufgesteckt ist.at a particular embodiment is provided that the socket has a window, in which a latching projection dips on the journal, when the slip-on is attached to the industry.
Die Aufsteckhülse kann im Bereich des Fensters von einer Stabilisierungshülse umgeben sein, so dass die Aufsteckhülse trotz des Fensters die notwendige Festigkeit beibehält.The slip-on may be surrounded by a stabilizing sleeve in the region of the window, so the slip-on sleeve despite the window maintains the necessary strength.
Es ist vorteilhaft, wenn der Lagerzapfen im Bereich des Rastvorsprunges eine diametrale Durchbrechung aufweist und dadurch in zwei elastisch gegeneinander biegbare, nebeneinander liegende Arme unterteilt ist. Die Arme können elastisch gegeneinander gebogen werden, wenn das Aufsteckelement aufgeschoben wird, und dabei werden die Rastvorsprünge an den Armen so weit radial nach innen geschoben, dass die Steckhülse über diese gleiten kann, bis die Rastvorsprünge elastisch ausfedern und in das Fenster der Aufsteckhülse einrasten.It is advantageous if the bearing pin in the region of the locking projection has a diametrical opening and thereby in two elastic mutually bendable, adjacent arms is divided. The arms can be elastically bent against each other when the slip-on is pushed, and thereby the locking projections on the Poorly pushed radially inward so far that the receptacle over this can slide until the latching projections elastically spring down and engage in the window of the slip-on sleeve.
Bei einer bevorzugten Ausführungsform ist vorgesehen, dass die Ausrichtglieder von den Branchen und den Aufsteckelementen vorstehende Orientierungszungen sind, die jeweils eine Führungsfläche aufweisen, und dass die Führungsflächen beim Aufstecken des Aufsteckelementes auf die Branche aneinander anliegen und dadurch das Aufsteckelement relativ zur Branche in die gewünschte definierte Lage lenken.at a preferred embodiment is provided that the alignment members of the branches and the Aufsteckelementen projecting orientation tongues are, respectively have a guide surface, and that the guide surfaces when plugging the Aufsteckelementes rest on the industry together and thereby the slip-on element relative to the industry in the desired defined position to steer.
Günstig ist es, wenn mindestens eine der Orientierungszungen federnd ausgebildet ist, so dass die Führungsflächen elastisch gegeneinander gedrückt werden.Cheap is if at least one of the orientation tongues is resilient is, making the guide surfaces elastic pressed against each other become.
Bei einer Steckverbindung, die eine Steckhülse und einen Lagerzapfen umfasst, können sich die Orientierungszungen vorzugsweise im Innern der Steckhülse befinden, wenn das Aufsteckelement auf die Branche aufgesteckt ist.For a connector that has a plug sleeve and a journal, the Orientierungszungen can preferably be located inside the receptacle when the plug-on is attached to the industry.
Dadurch werden die Orientierungszungen im Inneren der Steckhülse gegen jede Verformung oder Beschädigung geschützt.Thereby The orientation tongues are in the interior of the receptacle against any deformation or damage protected.
Eine der beiden Orientierungszungen kann eine Verlängerung des Lagerzapfens sein.A The two orientation tongues can be an extension of the bearing journal.
Es ist vorteilhaft, wenn die Führungsflächen relativ zur Aufsteckrichtung der Aufsteckelemente geneigt sind, so dass durch diese Neigung die Führungsflächen beim fortschreitenden Aufstecken mit einer zunehmenden Federkraft gegeneinander gedrückt werden, außerdem ermöglicht diese Neigung eine Orientierung der beiden Teile zueinander beim Aufstecken.It is advantageous if the guide surfaces relative are inclined to Aufsteckrichtung the slip-on, so that by this inclination the guide surfaces progressive plugging with an increasing spring force against each other depressed be, as well allows this tendency an orientation of the two parts to each other when plugging.
Gemäß einer bevorzugten Ausführungsform der Erfindung wird die Pinzettenspitze als Keramikbauteil ausgebildet mit mindestens einem elektrisch isolierenden Bereich aus einem Keramikmaterial und mit mindestens einem Bereich aus einem elektrisch leitfähigen Keramikmaterial, welches durch Einbettung elektrisch leitfähiger Partikel seine elektrische Leitfähigkeit erhält. Auf diese Weise bestehen sowohl die elektrisch leitfähigen Bereiche als auch die elektrisch isolierenden Bereiche der Pinzettenspitze einheitlich aus Keramikmaterial, d.h. sie haben ähnliche mechanische und chemische Eigenschaften, beispielsweise eine sehr hohe Druckfestigkeit, eine hohe Resistenz gegenüber Chemikalien oder eine geringe Anhaftung an anliegendem Gewebe.According to one preferred embodiment of Invention, the tweezer tip is formed as a ceramic component with at least one electrically insulating region of a ceramic material and at least one region made of an electrically conductive ceramic material, which by embedding electrically conductive particles its electrical conductivity receives. In this way, there are both the electrically conductive areas as well as the electrically insulating regions of the tweezer tip uniformly made of ceramic material, i. they have similar mechanical and chemical Properties, for example, a very high compressive strength, a high Resistance to Chemicals or low adhesion to adjacent tissue.
Die Schwierigkeiten, die bei herkömmlichen Pinzettenspitzen durch das Aufeinandertreffen sehr unterschiedlicher Materialien in den elektrisch leitenden und in den elektrisch nicht leitenden Bereichen auftreten, können durch die Kombination eines elektrisch isolierenden Keramikmaterials und eines elektrisch leitfähigen Keramikmaterials überwunden werden.The Difficulties with conventional tweezer tips through the meeting of very different materials in the electrically conductive and in the electrically non-conductive Areas can occur by the combination of an electrically insulating ceramic material and an electrically conductive Ceramic material overcome become.
Besonders vorteilhaft ist es, wenn die elektrisch isolierenden und die elektrisch leitfähigen Bereiche monolithische Sinterkörper ausbilden. In diesem Falle ist die Pinzettenspitze als einheitlicher Körper aus Keramikmaterial anzusehen, der lediglich durch Zusätze bereichsweise elektrische Leitfähigkeit erhält, die übrigen Eigenschaften sind über das gesamte Volumen des Werkzeuges aufgrund der einheitlichen keramischen Natur des Werkstoffes ähnlich oder weitgehend identisch, die Gefahr einer Trennung im Grenzbereich zwischen elektrisch leitfähigen und elektrisch isolierenden Bereichen besteht nicht.Especially It is advantageous if the electrically insulating and the electric conductive Areas of monolithic sintered bodies form. In this case, the tweezer tip is as uniform body To look at ceramic material, the only area by additives electric conductivity receives the remaining Properties are over the entire volume of the tool due to the uniform ceramic Nature of the material similar or largely identical, the risk of separation in the border area between electrically conductive and electrically insulating areas does not exist.
Das verwendete Keramikmaterial kann beispielsweise Al2O3 sein, und es ist günstig, wenn das elektrisch leitfähige Keramikmaterial als leitfähige Partikel TiN enthält, gegebenenfalls könnten auch Kohlefäden in das Keramikmaterial eingebettet sein.The ceramic material used may, for example, be Al 2 O 3 , and it is favorable if the electrically conductive ceramic material contains TiN as conductive particles, if appropriate also carbon filaments could be embedded in the ceramic material.
Es ist günstig, wenn der Anteil der elektrisch leitfähigen Partikel in dem elektrisch leitfähigen Keramikmaterial zwischen 30 und 70 Volumenprozent liegt. Durch den Anteil der leitfähigen Partikel kann der elektrische Widerstand auf die gewünschte Größe eingestellt werden, wesentlich ist lediglich, dass die elektrisch leitfähigen Partikel homogen in dem nicht leitfähigen Keramikmaterial verteilt sind, so dass elektrische Brücken zwischen den elektrisch leitfähigen Partikeln entstehen, die die elektrische Leitfähigkeit verursachen.It is cheap, when the proportion of electrically conductive particles in the electric conductive Ceramic material is between 30 and 70 percent by volume. By the Proportion of conductive Particles can set the electrical resistance to the desired size It is only essential that the electrically conductive particles homogeneous in the non-conductive Ceramic material are distributed so that electrical bridges between the electrically conductive Particles form, which cause the electrical conductivity.
Die Größe der nicht leitenden Keramikpartikel und der leitfähigen Partikel in dem elektrisch leitfähigen Keramikmaterial kann zwischen 1 und 100 μm liegen, vorzugsweise zwischen 3 und 50 μm. Zwischen nicht leitenden Keramikpartikeln und den elektrisch leitfähigen Partikeln können in dem elektrisch leitfähigen Keramikmaterial Leerstellen angeordnet sein, deren Größe liegt vorzugsweise zwischen 0,1 und 10 μm, insbesondere zwischen 0,5 und 5 μm.The Size of not conductive ceramic particles and the conductive particles in the electrically conductive Ceramic material can be between 1 and 100 microns, preferably between 3 and 50 μm. Between non-conductive ceramic particles and the electrically conductive particles can in the electrically conductive Ceramic material may be located voids whose size is preferably between 0.1 and 10 μm, in particular between 0.5 and 5 microns.
Die Erfindung betrifft auch eine Haltevorrichtung für mindestens ein Aufsteckelement der chirurgischen Pinzette, wie es vorstehend beschrieben ist.The The invention also relates to a holding device for at least one plug-on element surgical tweezers as described above.
Eine solche Haltevorrichtung soll den Benutzer in die Lage versetzen, in besonders einfacher Weise die chirurgische Pinzette mit dem Aufsteckelement zu verbinden, das bei manchen chirurgischen Pinzetten unter Umständen sehr klein ausgebildet und daher schwierig zu handhaben ist.A such holding device should enable the user to in a particularly simple manner, the surgical forceps with the slip-on This may be very common in some surgical forceps Small and therefore difficult to handle.
Diese Aufgabe wird bei einer Haltevorrichtung der vorstehend beschriebenen Art erfindungsgemäß dadurch gelöst, dass das Aufsteckelement in Längsrichtung herausziehbar in einer Aufnahme der Haltevorrichtung gehalten ist. Auf diese Weise kann man durch Annähern der Haltevorrichtung mit einem in die Haltevorrichtung eingesetzten Aufsteckelement an das Griffelement die Branche einerseits und das Aufsteckelement andererseits so gegeneinander führen, dass das Aufsteckelement auf die Branche aufgesteckt wird, bis eine axiale Festlegung durch die Verriegelungselemente erfolgt. Anschließend kann man die Haltevorrichtung einfach zum freien Ende des Aufsteckelementes hin abziehen, da das Aufsteckelement an der Branche durch die Verriegelungsmittel gehalten wird.These Task is in a holding device of the above Type according to the invention thereby solved, that the slip-on element in the longitudinal direction pulled out in a receptacle of the holding device is held. In this way you can by approaching the fixture with an inserted into the holding device Aufsteckelement to the Handle element the industry on the one hand and the plug-in element on the other so against each other, that the slip-on is attached to the industry until a axial fixing is done by the locking elements. Then you can the holding device simply to the free end of the slip-on pull off, since the attachment element to the industry by the locking means is held.
Besonders vorteilhaft ist es, wenn an der Haltevorrichtung nebeneinander zwei Aufsteckelemente in einem Abstand, der dem Abstand der unverformten Branchen des Griffteils der Pinzette entspricht, in Längsrichtung herausziehbar gehalten sind. Es ist daher mit einer solchen Haltevorrichtung möglich, beide Aufsteckelemente gleichzeitig durch Heranführen der Haltevorrichtung an das Griffelement auf die Branchen aufzuschieben und nach dem vollständigen Aufstecken in Längsrichtung aus der Haltevorrichtung herauszuziehen.It is particularly advantageous if on the holding device side by side two Aufsteckelemente at a distance corresponding to the distance of the undeformed branches of the handle part of the tweezers speaks, are pulled out in the longitudinal direction. It is therefore possible with such a holding device, both slip-on elements at the same time postpone by bringing the holding device to the handle element on the industries and pull out after the complete plugging in the longitudinal direction of the holding device.
Die Haltevorrichtung kann ein Halterohr aufweisen, in welchem die Aufsteckelemente im Reibschluss festgelegt sind, so dass die Aufsteckelemente in dem Bereich, in dem sie in der Haltevorrichtung gehalten sind, gut geschützt sind.The Holding device may have a holding tube, in which the Aufsteckelemente are fixed in frictional engagement, so that the Aufsteckelemente in the area in which they are held in the holding device, well protected are.
Das Halterohr kann in die Aufnahme der Haltevorrichtung einsetzbar sein, insbesondere kann die Aufnahme einen seitlichen Längsschlitz aufweisen, der zum Einsetzen des Halterohres elastisch aufweitbar ist. Die Haltevorrichtung kann damit in einfachster Weise wieder mit neuen Aufsteckelementen bestückt werden, die in einem Halterohr im Reibschluss gehalten sind.The Holding tube can be used in the recording of the holding device, In particular, the receptacle may have a lateral longitudinal slot have, for the insertion of the holding tube elastically expandable is. The holding device can thus again in the simplest way be equipped with new slip-on elements, which are held in a retaining tube in frictional engagement.
Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:The following description of preferred embodiments of the invention used in conjunction with the drawings for further explanation. Show it:
Die
in der Zeichnung dargestellte chirurgische Pinzette
Die
Branchen
In
seinem mittleren Abschnitt wird der Lagerzapfen
Der
Lagerzapfen
Die
beiden Aufsteckelemente
Die
Pinzettenspitze
Das elektrisch isolierende Keramikmaterial kann ebenfalls Al2O3 sein.The electrically insulating ceramic material may also be Al 2 O 3 .
Der
Kern
Das
Maulteil kann dadurch hergestellt werden, dass es durch Zwei-Komponenten-Spritzen
von elektrisch isolierendem Keramikmaterial und elektrisch leitendem
Keramikmaterial andererseits vorgeformt wird. Anschließend wird
das Maulteil durch einen Sintervorgang monolithisch verfestigt,
so dass das Maulteil als einteiliges Keramikteil auf dem Kern
An
seiner der Pinzettenspitze
Auf
den Kern
Die
Steckhülse
Der
gesamte Kern
Jedes
Aufsteckelement
Der
Benutzer kann also das Aufsteckelement
Bei
dem Aufschieben des Aufsteckelementes
Das
Aufstecken der Aufsteckelemente
Um
in diesem Falle den Aufsteckvorgang zu vereinfachen, wird eine Haltevorrichtung
Die
Längskanäle
In
jedes Halterohr
Nach
der Verriegelung der Aufsteckelemente
Bei
dem Aufstecken wird zwangsläufig
eine Ausrichtung der Aufsteckelemente
Die
Halterohre
Claims (26)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE200720016233 DE202007016233U1 (en) | 2007-11-20 | 2007-11-20 | Surgical forceps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200720016233 DE202007016233U1 (en) | 2007-11-20 | 2007-11-20 | Surgical forceps |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007016233U1 true DE202007016233U1 (en) | 2008-01-31 |
Family
ID=38989991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200720016233 Expired - Lifetime DE202007016233U1 (en) | 2007-11-20 | 2007-11-20 | Surgical forceps |
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Country | Link |
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DE (1) | DE202007016233U1 (en) |
Cited By (250)
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DE202009001224U1 (en) | 2009-02-03 | 2009-04-02 | Aesculap Ag | Surgical instrument |
DE102009007205A1 (en) | 2009-02-03 | 2010-08-05 | Aesculap Ag | Surgical instrument |
EP2353535A1 (en) * | 2010-01-29 | 2011-08-10 | Tyco Healthcare Group, LP | Dielectric jaw insert for electrosurgical end effector |
US8147489B2 (en) | 2005-01-14 | 2012-04-03 | Covidien Ag | Open vessel sealing instrument |
USD661394S1 (en) | 2011-02-24 | 2012-06-05 | Tyco Healthcare Group Lp | Device jaw |
US8197633B2 (en) | 2005-09-30 | 2012-06-12 | Covidien Ag | Method for manufacturing an end effector assembly |
US8366709B2 (en) | 2004-09-21 | 2013-02-05 | Covidien Ag | Articulating bipolar electrosurgical instrument |
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2007
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