DE3002847A1 - Chirurgischer naehapparat zum anlegen einer durch klammern gebildeten naht - Google Patents
Chirurgischer naehapparat zum anlegen einer durch klammern gebildeten nahtInfo
- Publication number
- DE3002847A1 DE3002847A1 DE19803002847 DE3002847A DE3002847A1 DE 3002847 A1 DE3002847 A1 DE 3002847A1 DE 19803002847 DE19803002847 DE 19803002847 DE 3002847 A DE3002847 A DE 3002847A DE 3002847 A1 DE3002847 A1 DE 3002847A1
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- 238000009958 sewing Methods 0.000 title description 8
- 238000005452 bending Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000000056 organ Anatomy 0.000 description 13
- 239000002184 metal Substances 0.000 description 4
- 210000000936 intestine Anatomy 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000000968 intestinal effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07228—Arrangement of the staples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/0725—Stapler heads with settable gap between anvil and cartridge, e.g. for different staple heights at different shots
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07257—Stapler heads characterised by its anvil
- A61B2017/07264—Stapler heads characterised by its anvil characterised by its staple forming cavities, e.g. geometry or material
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
Vsesojuzny nauchno-issledovatelsky i ispytatelny Institut
meditsinskoi tekhniki, Moskau (UdSSR)
Chirurgischer Nähapparat zum Anlegen einer durch Klammern gebildeten Naht
Die vorliegende Erfindung betrifft einen chirurgischen Nähapparat zum Anlegen einer durch Klammern gebildeten Naht,
der ein Anschlaggehäuse mit einer Wechselmatrize, die Ausnehmungen zum Biegen von aus einem am Antriebsschlitten
eines Halters angeordneten Wechselmagazin mit Klammerzuführnuten zuzuführenden Klammern umfaßt, sowie einen Stößel mit
Antrieb zum Ausstoßen der Klammern aus dem Magazin und
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zu deren Transport zur Wechselmatrize zur Nahtbildung aufweist. Er dient z.B. zum mittels Metallklammer!! erfolgenden
Nähen von Organen und Geweben, insbesondere Stümpfen von
Hohlorganen, Blutgefäßen, Därmen, Magen, Luftröhrenzweigen,
Geweben der Lunge und sonstigen Organen sowie zur Schaffung eines Kunstfilters an Blutgefäßen bei Thrombenbi!düngen.
Es wurden bereits verschiedene chirurgische Nähapparate der einschlägigen Art entwickelt. Diese Apparate sind zum Vernähen
(Verschluß) der Stümpfe von Hohlorganen bestimmt. Unterschiedliche Organe und diverse Operationsverfahren beim
Vernähen der Stümpfe von Hohlorganen erfordern die Anwendung unterschiedlicher Nahttypen. So wird z.B. zum Vernähen von
Darmstümpfen eine linienförmige Naht bzw. zum Vernähen eines Luftröhrenzweiges eine pfahlzaunförmige oder schräge Naht
angewandt. Wenn eine besonders dauerhafte Naht erforderlich ist, ist es zweckmäßig, eine kreuzförmige Naht anzuwenden.
Die Nähte unterscheiden sich auch in bezug auf Länge und Dicke der zusammenzunähenden Gewebe. Beim Vernähen eines
Magenstumpfes beträgt die Nahtlänge etwa 120 mm, während beim Vernähen des Stumpfes eines Darms, eines Luftröhrenzweigs,
eines Gefäßblocks usw. die Nahtlänge etwa 40 mm beträgt.
Es ist ein chirurgischer Nähapparat bekannt, der üblicherweise beim Vernähen von Organen und Geweben, insbesondere
von Stümpfen von Hohlorganen, mit Metallklammern zur Anwendung kommt (US-PS 3 079 606).
Dieser umfaßt ein Anschlaggehäuse mit einer Wechselmatrize, die Ausnehmungen zum Umbiegen der Klammern aufweist, einen
Antriebshalterschlitten mit einem Wechselmagazin, einen Stößel, einen Antrieb für den Halterschlitten, einen Antrieb
für den Stößel. Das Anschlaggehäuse ist in Form eines im
030042/0655 " 5 "
BAD ORIGINAL
Querschnitt U-förmigen, länglichen Teils mit Führungen und
einem hakenförmigen Teil, an dessen Innenseite die abnehmbare Matrize mit den Ausnehmungen zum Umbiegen der Klammern
befestigt ist, ausgeführt. In den Führungen des Anschlaggehäuses ist der Halterschlitten mit dem Wechselmagazin beweglich
angeordnet. Der Halterschlitten weist ebenfalls Führungen auf. Das Klamxnermagazin besitzt Klammernuten/ deren Anordnung
der der Ausnehmungen auf der Matrize entspricht. In jeder Klammernut befindet sich eine Metallklammer. In den Führungen '
des Halterschlittens ist der Lamellen aufweisende Stößel beweglich angeordnet. Die Anordnung der Lamellen am Stößel
stimmt mit der der Klammernuten im Magazin überein. Der Antrieb für den Halterschlitten ist ein Schraubenantrieb, der
für den Stößel ein Hebelantrieb.
Der Apparat arbeitet wie folgt. Der hakenförmige Teil des Apparates wird unter das zu vernähende Organ herangeführt.
Durch Drehen der Schraubenmutter des Antriebs für den Halterschlitten
wird dieser zusammen mit dem Klammermagazin und dem Stößel an die Matrize herangeführt. Dabei wird das zu vernähende
Gewebe komprimiert, so daß die Blutzirkulation unterbrochen wird, und es wird zwischen der Ebene der Matrize,
auf der sich die offenen Klammernuten befinden, durch das Magazin ein sogenannter Durchnähspalt eingestellt. Durch
Betätigen eines Hebels (Stößelantrieb) wird der Stößel ebenfalls in Richtung auf die Matrize vorgeschoben, wobei die
Stößellamellen in die Klammernuten eindringen und die Klammern
aus diesen ausstoßen. Nachdem die Metallklammern mit ihren freien Enden das zusammengedrückte Gewebe durchgestochen
haben, treffen diese auf die Ausnehmungen der Matrize auf und werden durch diese "B"-förmig umgebogen, so daß die
Klammern das Gewebe fest verbinden.
Mit diesem Apparat kann jedoch nur ein Nahttyp, z.B. eine linienförmige Naht, angelegt werden. Um alle Nahttypen erzeugen
0 3 0 0 A 2/0 6 5 5 ,
. — D —
zu können, müssen entsprechend viele Apparate vorhanden sein. Das bringt aber eine beträchtliche Erhöhung der Operationsausrüstung mit sich.
Der Erfindung liegt die Aufgabe zugrunde, die Wechselmatrize, das Magazin und den Stößel des chirurgischen Apparates derart
auszuführen, daß die Möglichkeit besteht, mit ein und demselben Apparat verschiedene Nahttypen herzustellen.
Die gestellte Aufgabe wird dadurch gelöst, daß 1) der Apparat je eine We.chselmatrize für jeden Nahttyp umfaßt, 2) jede
Matrize eine stirnseitige Führungsplatte aufweist, die in einer Ebene liegt, die senkrecht zur Fläche mit den Ausnehmungen
verläuft und dem Magazin zugewandt ist, 3) wobei die Oberfläche der Führungsplatte jeder Wechselmatrize ein dem
jeweiligen Nahttyp entsprechendes unterschiedliches Profil aufweist und 4) die Stirnfläche des zugehörigen Wechselmagazins
ein dem Nahttyp und dem der Führungsplatte der Matrize entsprechendes Profil besitzt, und 5) der Stößel ebenfalls
auswechselbar und seine Stirnfläche zu dem Profil der Stirnfläche des Magazins des entsprechenden Nahttyps identisch
ausgeführt ist.
Durch den auswechselbaren Stößel und das Vorsehen der stirnseitigen
Führungsplatte der Matrize, deren Profil mit denen der Stirnflächen des Magazins und Stößels identisch ist,
gewährleistet der vorgeschlagene Apparat eine zwangsläufige Übereinstimmung der Matrize des Stößels und des Magazins,
was die Erzeugung verschiedener Nahttypen mit ein und demselben Apparat ermöglicht, chirurgische Kunstfehler beim
Einbau der Matrize, des Stößels und des Magazins, die einem bestimmten Nahttyp entsprechen, und als Folge davon die
Erzielung von nicht haltenden Nähten ausschließt, die Kosten der zur Erhaltung verschiedener Nahttypen bestimmten Ausrüstung
senkt und die Bequemlichkeit in der Handhabung des Apparates verbessert.
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- 7 BAD ORIGINAL
Es ist zweckmäßig, daß die profilierte Oberfläche der Führungsplatte
der Matrize durch zu dem Magazin offene Nuten gebildet ist, während Magazin und Stößel entsprechende Vorsprünge
aufweisen, die in diese Nuten eingreifen.
Nachstehend wird die Erfindung anhand von Ausführungsbeispielen unter Hinweis auf die Zeichnungen näher erläutert.
Es zeigt:
Pig. 1 eine seitliche Gesamtansicht des erfindungsgemaßen
Apparates mit Teilschnitt,
Fig. 2 eine Gesamt-Draufsieht auf den erfindungsgemäßen
Apparat,
Fig» 3 einen Schnitt gemäß der Linie III-III in Fig. 1,
Fig. 4 einen Schnitt gemäß der Linie IV-IV in Fig. 1 ,
Fig. 5 verschiedene Nahttypen, die in der modernen Chirurgie zur Anwendung kommen,
Fig. 6 in axonometrischer Projektion Stößel, Magazin und
Matrize nach der Erfindung, in vergrößertem Maßstab, zur Bildung eines linienförmigen Nahttyps,
Fig. 7 in axonometrischer Projektion Stößel, Magazin und Matrize nach der Erfindung, in vergrößertem Maßstab,
zur Bildung eins pfahlzaunförmigen Nahttyps, und
Fig. 8 in axonometrischer Projektion Stößel, Magazin und Matrize nach der Erfindung, in vergrößertem Maßstab,
zur Bildung eines schrägen Nahttyps,
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Fig. 9 in axonometrischer Projektion Stößel, Magazin und
Matrize nach der Erfindung, in vergrößertem Maßstab, zur Bildung eines kreuzförmigen Nahttyps.
Der chirurgische Nähapparat zur Anlegung einer Klammernaht umfaßt ein Anschlaggehäuse 1 (Fig. 1) mit einer Wechselmatrize
2, auf der sich Ausnehmungen 3 (Fig. 3, Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9) zum Umbiegen von Klammern 4 (Fig. 4)
befinden, ferner einen Antriebshalterschlitten 5 (Fig. 1) mit einem Wechselmagazin 6, einen Stößel 7, einen Antrieb 8
für den Halterschlitten und einen Antrieb 9 für den Stößel.
Das Anschlaggehäuse 1 wird durch einen im Querschnitt im wesentlichen U-förmigen länglichen Teil 10 mit. Führungen 11
(gestrichelt angedeutet) und einen hakenförmigen. Teil 12
gebildet, an dessen Innenseite die Matrize 2 angeordnet ist. Zum Einbau der Wechselmatrize 2 in den Apparat weist sie eine
T-Nut 13 (Fig. 6, 7, 8, 9) und die Innenseite des hakenförmigen Teils 12 einen T-Vorsprung 14 auf (Fig. 2). Am Endteil
15 (Fig. 1) des Anschlaggehäuses ist ein Vorsprung 16 zum Zusammenwirken mit dem Antrieb 8 für den Halterschlitten
ausgeführt. Zur bequemeren Handhabung des Apparates ist das Anschlaggehäuse 1 mit einem Griff 17 versehen.
Der Antriebshalterschlitten 5 ist in Form eines verlängerten Stabes 18 mit einem Schaft 19 an einem Ende und einem
Halter 20 für das Wechselklammermagazins 6 am anderen Ende ausgebildet.
Zum Arretieren des Magazins 6 weist der Halter 2O Vorsprünge
21 (Fig. 2) und das Magazin 6 (Fig. 6, 7, 8, 9) Profilnuten
22 auf. Außerdem sind am Magazin 6 Durchgangsnuten 23 für die Klammern vorgesehen, deren Anordnung der der Ausnehmungen 3
auf der Matrize entspricht. Am Antriebshalterschlitten 5 sind
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zur Zusammenarbeit mit dem Anschlaggehäuse 1 (Fig. 1) Vorsprünge 24 ausgeführt. Der Schaft 19 des Halterschlittens
ist hohl und mit Außen- und Innengewinde ausgeführt.
Der Stößel 7 stellt ebenfalls einen länglichen Stab 25 dar, an dessen einem Ende eine nicht dargestellte T-Nut und an
dessen anderem Ende ein Kopf 26 mit Lamellen 27 ausgeführt ist. Die Konfiguration und Anordnung der Lamellen 27 des
Stößels 7 stimmen mit denen der Klammernuten 23 überein (Fig. 6, 7, 8, 9).
Erfindungsgemäß ist der Stößel 7 (Fig. 1) abnehmbar ausgeführt. Dazu ist der Stößel 7 mit Hilfe einer T-Nut mit einem T-Vorsprung
40 des Antriebs 9 für den Stößel 7 lösbar gekoppelt. Der Antrieb 8 für den Halterschlitten 5 wird durch eine
Schraubenmutter 2 8 gebildet, auf der eine kreisförmige Eindrehung 29 ausgeführt ist. Die Schraubenmutter 28 bildet mit
dem Außengewinde des Schaftes 19 ein Schraubenpaar und steht mit ihrer kreisförmigen Eindrehung 29 mit dem Vorsprung 16
des Änschlaggehäuses 1 in beweglichem Eingriff.
Der Antrieb 9 für den Stößel 7 wird ebenfalls durch eine Schraube 30 mit einer kreisförmigen Eindrehung 31 gebildet.
Die Schraube 30 bildet mit dem Innengewinde des Schaftes 19 des Halterschlittens 5 ein Schraubenpaar und steht mit ihrer
kreisförmigen Eindrehung 31 mit der nicht dargestellten Gabel des Stößels 7 in beweglichem Eingriff.
Auf der Wechselmatrize 2 (Fig. 6, 7, 8, 9) ist erfindungsgemäß
eine stirnseitige Führungsplatte 32 ausgeführt, die senkrecht zur Oberfläche 33 mit den Ausnehmungen angeordnet
ist und in Richtung auf das Magazin hervorragt. Die stirnsei tige Führungsplatte 32 hat ein Profil 34, dessen Form einem
bestimmten Nahttyp entspricht (Fig. 5). Eine der Stirnflächen
IQ _
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35 (Fig. 6, 7, 8, 9) des Magazins 6 und eine der Stirnflächen
36 des Stößels 7 sind identisch mit dem Profil der stirnseitigen Führungsplatte 32 für einen bestimmten Nahttyp ausgebildet.
Das Profil der stirnseitigen Führungsplatte kann
durch Nuten 37 und das der Stirnfläche des Magazins und
Stößels durch gleiche Vorsprünge 38 gebildet, werden.
durch Nuten 37 und das der Stirnfläche des Magazins und
Stößels durch gleiche Vorsprünge 38 gebildet, werden.
Zur Begrenzung des Gewebes gegen Bewegen hinter die Nahtzone während des Durchnähens ist am Apparat ein Zusatzteil in ;
Form einer Begrenzungsleiste 39 (Fig. T) zwischen dem hakenförmigen
Teil 12 und der Schraubenmutter 28 hin und her
verschiebbar angeordnet.
verschiebbar angeordnet.
Die Handhabung des chirurgischen Nähapparates ist. wie folgt.
Sie wird dabei an einem konkreten Beispiel eines Darmstumpfnähapparates
dargelegt.
Nach in der modernen Chirurgie akzeptierten" Verfahren wird
ein Darmstumpf mit einer linienförmigen Naht vernäht. Für
die linienförmige Naht werden entsprechend Matrize 2 (Fig. 6) , Wechselmagazin 6 und Wechselstößel 7 ausgewählt. Durch Drehen der Schraubenmutter 28 (Fig. 1) des Antriebs für den Halterschlitten 5 entgegen dem Uhrzeigersinn wird der Halterschlitten 5 in die Ausgangsstellung zurückgeführt und aus dem Anschlaggehäuse 1 herausgenommen.
ein Darmstumpf mit einer linienförmigen Naht vernäht. Für
die linienförmige Naht werden entsprechend Matrize 2 (Fig. 6) , Wechselmagazin 6 und Wechselstößel 7 ausgewählt. Durch Drehen der Schraubenmutter 28 (Fig. 1) des Antriebs für den Halterschlitten 5 entgegen dem Uhrzeigersinn wird der Halterschlitten 5 in die Ausgangsstellung zurückgeführt und aus dem Anschlaggehäuse 1 herausgenommen.
Der Stößel 7 wird derart eingestellt, daß seine T-Nut (nicht dargestellt) die kreisförmige Eindrehung 31 der Schraube des
Antriebs 9 für den Stößel umfaßt und sein Kopf 26 in den Halter 20 hineinragt. Dabei muß die profilierte Stirnfläche 36.
(Fig. 6) in bezug auf den Vorsprung 24 in die entgegengesetzte Richtung (Fig. 1) gerichtet sein.
(Fig. 6) in bezug auf den Vorsprung 24 in die entgegengesetzte Richtung (Fig. 1) gerichtet sein.
Der Antriebshalterschlitten 5 wird zusammen mit dem Stößel 7 derart in den im Querschnitt ü-förmigen Teil 1O des
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- 11 -
Anschlaggehäuses 1 eingelegt, daß der Stößel 7 auf dem Boden
des Teils 10 aufliegt. Danach wird die Schraubenmutter 28 des Antriebs für den Halterschlitten um eine Umdrehung gedreht,
so daß die Vorsprünge 24 in die Führungsnuten 11 des Anschlaggehäuses 1 hineinragen. Auf diese Weise wird
ein bewegliches, zwischen dem hakenförmigen Teil 12 und dem Endteil 15 des Anschlaggehäuses 1 hin und her verschiebbares
Gelenk gebildet.
Das Wechselmagazin 6 (Fig. 2) wird derart in den Halterschlitten eingesetzt, daß die Vorsprünge 21 in die Nuten 22
des Magazins 6 eingreifen. Dabei wird es so weit wie möglich an den Vorsprüngen 21 entlang vorgeschoben. Die Matrize 2
wird schließlich so am hakenförmigen Teil 12 (Fig. 1) des Anschlaggehäuses 1 montiert, daß der T-Vorsprung 14 (Fig. 2)
des Anschlaggehäuses 1 in die Nut 13 (Fig. 6) der Matrize 2 (Fig. 2) hineinragt, wobei die stirnseitige Führungsplatte
zur Seite des Magazins 6 hingerichtet ist.
Der hakenförmige Teil 12 des Anschlaggehäuses 1 wird nun unter das zu vernähende Organ (im vorliegenden konkreten Fall
unter den Darm) herangeführt. Die Begrenzungsleiste 39 (Fig. 1) wird in Richtung auf den Teil 12 derart vorgeschoben,
daß das zu vernähende Organ zwischen diesem und Matrize 2, Magazin 6 und Begrenzungsleiste 39 eingeschlossen ist.
Durch Drehen der Schraubenmutter 28 des Antriebs für den Halterschlitten 5 wird dieser gemeinsam mit dem Magazin 6 und
dem Stößel 7 an die Matrize 2 herangeführt, wobei er das Gewebe zur Bildung des Durchnähspalts zusammendrückt. Danach
wird der Stößel 7 durch Drehen der Schraube 30 seines Antriebs 9 im Uhrzeigersinn in Richtung auf die Matrize vorgeschoben,
wobei seine Lamellen 27 in die Klammernuten 2 3 des Magazins 6 eingreifen und die Klammern aus den Nuten des
Magazins ausstoßen. Die Klammern durchstechen mit ihren
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freien Enden das Gewebe, die danach auf die Ausnehmungen
der Matrize 2 auftreffen und an diesen B-förmig umgebogen
werden, so daß sie eine Naht bilden.
Das vernähte Organ wird danach in der Ebene des Apparates beschnitten. Durch Drehen der Schraubenmutter 28 des Antriebs
für den Halterschlitten 5 entgegen dem Uhrzeigersinn wird dieser zusammen mit dem Stößel 7 und Magazin 6
in die Ausgangsstellung zurückgeführt. Das Organ wird freigegeben und dadurch ist der Vorgang beendet.
Bei dem erfindungsgemäßen Apparat ist eine zwangsläufige Übereinstimmung von Wechselmatrize, Magazin und Stößel gegeben,
wodurch eventuelle Fehler des medizinischen Personals beim Anbringen dieser Wechselbauteile an dem Apparat ausgeschlossen
sind. Dies ist entscheidend, weil in dem Fall, in dem einer der Bauteile (Matrize, Stößel, Magazin) für einen
Nahttyp, z.B. für eine linienförmige Naht, mit Wechselbauteilen eines anderen Nahttyps, z.B. für eine pfahlzaunförmige
Naht, verwendet wird, dies mindestens einen Bruch des Stößels hervorruft, und darüber hinaus die Folge hat, daß die
Klammern falsch gebogen werden, wodurch die Naht nicht hält mit der möglichen Konsequenz, daß der Patient stirbt.
Bei dem vorgeschlagenen Apparat sind diese Fehler völlig ausgeschlossen,
da in dem Fall, in dem wenigstens eines der Wechselbauteile aus Versehen verwechselt wird, der Apparat
von Anfang an nicht arbeitet, d.h. es nicht möglich ist, das
Gewebe zusammenzudrücken, da das Profil der stirnseitigen Führungsplatte 32, das nicht mit dem der Stirnfläche des
Magazins zusammenpaßt, sich nicht dem Antriebshalterschlitten der Matrize nähern läßt.
Der Apparat bietet also die Möglichkeit, Nähte verschiedenen Typs anzulegen, schließt aber Bedienungsfehler aus. Er
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- 13 -
Er senkt die Gesamtkosten der zur Anlegung von Nähten unterschiedlichen
Typs notwendigen Ausrüstung und macht die Arbeit durch die Vereinheitlichung und Standardisierung der
Hauptbaugruppen einfach und bequem.
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■ah-
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Claims (3)
- HOFPMANN · EITLE1<&PATENTANWÄLTEDR. ING. E. HOFFMANN (1930-197(5) · DIPL.-ING.W.EITLE · DR.RER.NAT.K.HOFFMANN · DIPL.-ING.W. LEHNDIPL.-ING. K. FOCHSLE - DR. RER. NAT. B. HANSEN ARABELLASTRASSE 4 (STERNHAUS) · D-8000 MO N CH EN 81 · TELEFO N (089) 911087 . TELEX 05-29019 (PATH E)32 961 v/erVsesojuzny nauchno-issledovatelsky i ispytatelny institut meditsinskoi tekhniki, Moskau (UdSSR)Chirurgischer Nähapparat zum Anlegen einer durch Klammern gebildeten NahtPatentansprücheIy Chirurgischer Nähapparat zum Anlegen einer durch Klammern gebildeten Naht, der ein Anschlaggehäuse mit einer Wechselmatrize, die Ausnehmungen zum Biegen von aus einem am Antriebsschlitten eines Halters angeordneten Wechselmagazin mit Klammerzuführnuten zuzuführenden Klammern umfaßt, sowie einen Stößel mit Antrieb zum Ausstoßen der Klammern aus dem Magazin und zu deren Transport zur Wechselmatrize zur Nahtbildung aufweist, dadurch gekennzeichnet, daß 1) der Apparat je eine Wechselmatrize (2) für jeden Nahttyp umfaßt, 2) jede Matrize (2) eine stirnseitige Führungsplatte (32) aufweist, die in einer Ebene liegt, die senkrecht zur Fläche (33) mit den Ausnehmungen (3) verläuft und dem Magazin (6) zugewandt ist, 3) wobei die Oberfläche der Führungsplatte jeder Wechselmatrize ein dem jeweiligen Nahttyp entsprechendes, unterschiedliches Profil aufweist und 4) die Stirnfläche (35) des zugehörigen Wechselmagazins030042/0655v-yrr- : ^ . - 2 -ein dem Nahttyp und dem der Führungsplatte der Matrize entsprechendes Profil besitzt, und 5) der Stößel (7) ebenfalls auswechselbar und seine Stirnfläche (36) zu dem Profil der Stirnfläche (36) zu dem Profil der Stirnfläche des Magazins des entsprechenden Nahttyps identisch ausgeführt ist.
- 2. Chirurgischer Apparat nach Anspruch T, dadurch gekennzeichnet, daß die profilierte Oberfläche der Führungsplatte (32) der Matrize (2) durch zu dem Magazin offene Nuten (37) gebildet ist, während Magazin. (6) und Stößel (7) entsprechende Vorsprünge (38) aufweisen, die in diese Nuten (37) eingreifen.
- 3 -030042/0655
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792747328A SU886900A1 (ru) | 1979-03-26 | 1979-03-26 | Хирургический сшивающий аппарат дл наложени линейных швов |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3002847A1 true DE3002847A1 (de) | 1980-10-16 |
| DE3002847C2 DE3002847C2 (de) | 1982-11-18 |
Family
ID=20819801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3002847A Expired DE3002847C2 (de) | 1979-03-26 | 1980-01-28 | Chirurgisches Nähgerät |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4305539A (de) |
| DE (1) | DE3002847C2 (de) |
| FR (1) | FR2452275A1 (de) |
| SU (1) | SU886900A1 (de) |
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| DE3248974C2 (de) * | 1981-08-17 | 1986-03-06 | United States Surgical Corp., Norwalk, Conn. | Amboß für ein chirurgisches Klammerinstrument |
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|---|---|---|---|---|
| DE3248974C2 (de) * | 1981-08-17 | 1986-03-06 | United States Surgical Corp., Norwalk, Conn. | Amboß für ein chirurgisches Klammerinstrument |
| DE3232769A1 (de) * | 1981-12-07 | 1983-06-16 | Senco Products, Inc., 45244 Cincinnati, Ohio | Chirurgisches klammerinstrument mit druckabhaengig gesteuertem arbeitsspalt |
| DE4303544A1 (en) * | 1992-02-07 | 1993-09-23 | Storz Karl Gmbh & Co | Surgical instrument for applying clips to surgical incision - has reloading magazine which holds clips in sterile environment |
| WO2025210694A1 (en) * | 2024-04-03 | 2025-10-09 | Gabriele MANETTI | Stapling device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2452275A1 (fr) | 1980-10-24 |
| US4305539A (en) | 1981-12-15 |
| FR2452275B1 (de) | 1983-04-29 |
| DE3002847C2 (de) | 1982-11-18 |
| SU886900A1 (ru) | 1981-12-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| OAM | Search report available | ||
| OC | Search report available | ||
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8339 | Ceased/non-payment of the annual fee |