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DE4403252A1 - Instrument shaft for min. invasive surgery - Google Patents

Instrument shaft for min. invasive surgery

Info

Publication number
DE4403252A1
DE4403252A1DE4403252ADE4403252ADE4403252A1DE 4403252 A1DE4403252 A1DE 4403252A1DE 4403252 ADE4403252 ADE 4403252ADE 4403252 ADE4403252 ADE 4403252ADE 4403252 A1DE4403252 A1DE 4403252A1
Authority
DE
Germany
Prior art keywords
shaft
invasive surgery
instrument
outer tube
instrument shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE4403252A
Other languages
German (de)
Inventor
Michael Hauser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to DE4403252ApriorityCriticalpatent/DE4403252A1/en
Publication of DE4403252A1publicationCriticalpatent/DE4403252A1/en
Withdrawnlegal-statusCriticalCurrent

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Abstract

The surgical instrument has a peripherally perforated tubular shaft (1). A tube (2) is fitted on the outside of the shaft covering the peripheral shaft holes. The outer tube is inserted for the actual surgery. For cleansing after surgery a nut (3) or a bayonet closure is loosened and removed together with the outer tube. The instrument has a distal end handle (5). The design permits proper cleaning and sterilising.

Description

Translated fromGerman

In der minimalinvasiven Chirurgie werden vorwiegend Instrumente einge­setzt, die über einen langen Schaft verfügen. Diese Schäfte sind nach dem heutigen Stand der Technik in der Regel rund (es sind jedoch auch andere Querschnitte möglich), und werden mit Hilfe eines Trokars in den Körper eingeführt.Instruments are mainly used in minimally invasive surgerysets that have a long shaft. These stems are afterthe current state of the art is usually round (but there are alsoother cross sections possible), and are measured with the help of a trocarintroduced the body.

Ein großes Problem, mit dem diese Instrumente behaftet sind, ist die Reinigung und Sterilisation derselben. Diese Instrumente haben zumeist sehr enge Querschnitte, die einerseits konstruktionsbedingt sind, anderer­seits auch erforderlich sind, damit das Gas, mit welchem der Körper während der Operation aufgeblasen ist, nicht entströmt. Nach dem der­zeitigen Stand der Technik können solche Instrumente zwar zerlegt werden, was jedoch häufig mit technisch aufwendigen Konstruktionen verbunden ist.A major problem with these instruments is thatCleaning and sterilization of the same. Most of these instruments havevery narrow cross sections, which are due to the construction on the one hand, and otherson the other hand are necessary so that the gas with which the bodyinflated during surgery, not inflated. After theIn the current state of the art, such instruments can be dismantledhowever, which is often associated with technically complex constructions.

Die Erfindung, für die das Patent beansprucht wird, beruht darauf, daß der Schaft aus mindestens zwei Rohren besteht, wovon das innere über nahezu die gesamte Länge und den Umfang mit Löchern versehen ist. Das äußere Rohr wird während der Operation einfach über den inneren Schaft gesteckt und hinten am Griff einfach mit einer Überwurfmutter oder einem Bajonettverschluß befestigt.The invention for which the patent is claimed is based on the fact thatthe shaft consists of at least two tubes, of which the inner one overalmost the entire length and circumference is provided with holes. Theouter tube is simply placed over the inner shaft during surgeryinserted and at the back of the handle simply with a union nut orBayonet lock attached.

Zum Reinigen nach der Operation wird einfach die Überwurfmutter oder der Bajonettverschluß (siehe ZeichnungFig. 1/3 Teil Nr. 3) geöffnet und zusam­men mit dem Außenrohr (Teil2) vom Instrumentenschaft (Teil1) gezogen. InFig. 1 ist das komplette Instrument zusammen mit dem Griff Teil5 zu sehen. InFig. 2 sieht man das wesentliche Teil der Erfindung, den inneren Schaft Teil1 mit dem inneren Teil des Bajonettverschlusses Teil4. InFig. 3 ist das Außenrohr Teil2 zusammen mit dem äußeren Teil vom Bajonett­verschluß Teil3 zu erkennen (Fig. 2 ist ohne Griff dargestellt).For cleaning after the operation, the union nut or the bayonet lock (see drawingFig. 1/3 Part No. 3) is simply opened and pulled together with the outer tube (Part2 ) from the instrument shaft (Part1 ). InFig. 1 the complete instrument can be seen together with the handle part5 . InFIG. 2, one sees the essential part of the invention, the inner shaft member1 with the inner part of the bayonet lock part4. InFig. 3 the outer tube part2 can be seen together with the outer part of the bayonet lock part3 (Fig. 2 is shown without a handle).

Während der Reinigung und der anschließenden Sterilisation kann nun das jeweilige Medium ungehindert in den Instrumentenschaft eindringen und so den gesamten Innenraum des Schaftes (Innenseite von Teil1 sowie die Zugstange von dem beweglichen Löffelmaul) erreichen. Die Schmutz­partikel werden ungehindert durch die siebartige Außenwandung des Innen­rohres herausgespült und der Dampf kann ungehindert eindringen. Die Erfindung ist auf der Zeichnung am Beispiel einer Löffelzange dar­gestellt, ist jedoch für jedes andere Instrument der minimalinvasiven Chirurgie anwendbar.During cleaning and the subsequent sterilization, the respective medium can now penetrate the instrument shaft unhindered and thus reach the entire interior of the shaft (inside of part1 and the pull rod of the movable spoon mouth). The dirt particles are flushed out through the sieve-like outer wall of the inner tube and the steam can penetrate unhindered. The invention is shown in the drawing using the example of a spoon forceps, but is applicable to any other instrument of minimally invasive surgery.

Als Quelle für den bisherigen technischen Stand habe ich die entsprechen­den Verkaufsunterlagen der einschlägigen Hersteller sowie entsprechende Publikationen der Ärzte zugrundegelegt.As a source for the current technical status, I have the correspondingthe sales documents of the relevant manufacturers as well as correspondingPublications of the doctors.

Claims (1)

Translated fromGerman
Schäfte für Instrumente, die in der minimalinvasiven Chirurgie verwendet werden,
dadurch gekennzeichnet, daß der Schaft auf nahezu seiner gesamten Länge am Umfang mit Löchern versehen ist,
und dadurch gekennzeichnet, daß über diesen Schaft ein Rohr geschoben wird, das die oben genannten Löcher verschließt.
Shafts for instruments used in minimally invasive surgery
characterized in that the shaft is provided with holes over almost its entire length on the circumference,
and characterized in that a tube is pushed over this shaft, which closes the above holes.
DE4403252A1994-02-031994-02-03Instrument shaft for min. invasive surgeryWithdrawnDE4403252A1 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
DE4403252ADE4403252A1 (en)1994-02-031994-02-03Instrument shaft for min. invasive surgery

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
DE4403252ADE4403252A1 (en)1994-02-031994-02-03Instrument shaft for min. invasive surgery

Publications (1)

Publication NumberPublication Date
DE4403252A1true DE4403252A1 (en)1995-08-10

Family

ID=6509345

Family Applications (1)

Application NumberTitlePriority DateFiling Date
DE4403252AWithdrawnDE4403252A1 (en)1994-02-031994-02-03Instrument shaft for min. invasive surgery

Country Status (1)

CountryLink
DE (1)DE4403252A1 (en)

Cited By (389)

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