DE3152430C2 - Selbstzentrierende chirurgische Klammer - Google Patents
Selbstzentrierende chirurgische KlammerInfo
- Publication number
- DE3152430C2 DE3152430C2 DE3152430A DE3152430A DE3152430C2 DE 3152430 C2 DE3152430 C2 DE 3152430C2 DE 3152430 A DE3152430 A DE 3152430A DE 3152430 A DE3152430 A DE 3152430A DE 3152430 C2 DE3152430 C2 DE 3152430C2
- Authority
- DE
- Germany
- Prior art keywords
- anvil
- web
- staple
- clamp
- tissue
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/064—Surgical staples, i.e. penetrating the tissue
- A61B17/0644—Surgical staples, i.e. penetrating the tissue penetrating the tissue, deformable to closed position
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Materials For Medical Uses (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Electrotherapy Devices (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
?g Die Erfindung betrifft eine chirurgische Klammer, die
in einem chirurgischen Klammerinstrument mittels ei-
';■ nes Stößels gegen einen Amboß gedrückt und dadurch
£ umgebogen wird.
•jf Chirurgische Klammerinstrumente zum Schließen
tv:: von Einschnitten oder Wunden durch Einsetzen von
Klammern in Körpergewebe sind beispielsweise in der
H US-PS 36 43 851 (Green u. a.). US-PS 36 50 453 (Smith),
US-PS 38 37 555 (Green) und der US-PS 44 07 286 (Noiles
u. a.) angegeben. Diese Klammern haben in den letzten Jahren weite Verbreitung und Anwendung gefunden.
Meistens sind sie U-förmig mit breitem Steg und rechtwinkligen Ecken vorgeformt.
''■; In den Klammerinstrumenten ist zum Drücken der
: Klammern gegen einen Amboß ein gegabelter Stößel
vorgesehen, zwischen dessen beiden Köpfen eine U-förmig begrenzte Vertiefung vorhanden ist, deren Grund
breiter ist als der Amboß, aber nicht so breit wie der Steg der U-förmigen Klammer. Der Drücker schiebt die
Klammer gegen den Amboß vor. worauf die Köpfe des gegabelten Stößels die Klammer derart gegen den Amboß
drückt, daß die Klammer um den Amboß herumgebogen wird und die Form eines geschlossenen C mit
rechtwinkligen Ecken oder eines Rechtecks annimmt.
Beim Hiegen treten die Rnden der Klammer unterhalb
des Ambosses in das Gewebe ein und ziehen sie die auf entgegengesetzten Seilen der Wunde oder ties fiinschniits
vorhandenen Gewebeteile zusammen. Nach dem vollständigen Umbiegen der Klammer wird der
Stößel von der Klammer weggezogen und der Amboß aus der Klammer herausgezogen, die in dem Gewebe
verbleibt und es beim Heilen zusammenhält
s Dabei tritt jedoch das schwerwiegende Problem auf, daß die Klammern häufig nicht symmetrisch um den Amboß herumgezogen werden, weil die Klammer bei ihrer Verformung eine exzentrische Lage einnimmt Infolgedessen fluchten die scharfen Spitzen der ungebo-
s Dabei tritt jedoch das schwerwiegende Problem auf, daß die Klammern häufig nicht symmetrisch um den Amboß herumgezogen werden, weil die Klammer bei ihrer Verformung eine exzentrische Lage einnimmt Infolgedessen fluchten die scharfen Spitzen der ungebo-
ic genen Klammer in dem geklammerten Gewebe nicht
miteinander, sondern es ist das eine Ende der Klammer zu tief in dem Gewebe eingebettet und das andere Ende
nicht tief genug.
Die Aufgabe der Erfindung besteht nun in der Schaffang
einer selbstzentrierenden Klammer.
Diese Aufgabe wird nach der Erfindung mit den Merkmalen des Anspruchs 1 gelöst
Weitere vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.
Zu Beginn des Einsetzens der Klammer in das Gewebe eines Patienten bewegt der Stößel die Klammer zunächst
bis sie mit dem Amboß in Berührung gelangt Bei weitergehender Bewegung des Stößels kommt es häufig
vor, daß sich die Klammer auf dem Amboß in ihrer Längsrichtung in eine exzentrische Lage bewegt, so daß
nach dem Umbiegen der Klammer deren Enden in dem Gewebe nicht einwaridfrei zentriert sind. Wenn bei der
Klammer gemäß der Erfindung eine derartige Bewegung vorkommt, greift eines der Kraftaufnahmeelemente
sofort an einem der Köpfe des Stößels oder einer der Schultern des Ambosses an, je nachdem, wo die Kraftaufnahmeelemente
angeordnet sind, so daß die Klammer während des verbleibenden Teils des Verformungsvorganges an Ort und Stelle festgehalten und zuverläs-
sig symmetrisch um den Amboß herumgebogen wird, weil die Kraftaufnahmeelemente am Steg der Klammer
symmetrisch angeordnet sind. Bei bevorzugten Ausführungsformen werden die Kraftaufnahmeelemente von
Nuten in der oberen oder unteren Fläche des Steges oder von Vorsprüngen auf der unteren Fläche des Steges
der Klammer gebildet.
Ausführungsbeispiele der Erfindung werden nachstehend
anhand der Zeichnungen beschrieben. In diesen zeigt
F i g. 1 schaubildlich eine Ausführungsform der chirurgischen Klammer von oben gesehen, wobei das eine
Ende der Klammer näher bei dem Betrachter angeordnet ist als der Steg.
Fig.2 bis 5 erläutern schematisch die Verwendung der Klammer nach Fig. 1. Dabei zeigt die Fig.5 die mittels des Klammerinstruments in die Form eines geschlossenen C gebogene und in ein Gewebe eingebettete Klammer.
Fig.6 zeigt einen Schnitt längs der Linie 6-6 in Fig.5.
Fig.2 bis 5 erläutern schematisch die Verwendung der Klammer nach Fig. 1. Dabei zeigt die Fig.5 die mittels des Klammerinstruments in die Form eines geschlossenen C gebogene und in ein Gewebe eingebettete Klammer.
Fig.6 zeigt einen Schnitt längs der Linie 6-6 in Fig.5.
F i g. 7 zeigt in einer Teildarstellung die Beziehung zwischen dem Steg der Klammer und dem Amboß des
Klammerinstruments nach dem Umbiegen der Klammer in die Form eines geschlossenen C.
Fig.8 bis 10 zeigen schaubildlich andere Ausführungsformen
der Klammer.
F i g. 11 bis 13 erläutern schematisch die Verwendung
der Klammer gemäß Fig. 10. Dabei zeigt die Fig. 13 die mittels des Klammerinstruments in die Form eines
ω geschlossenen C gebogene und in Gewebe eingebettete
Klammer.
F ig. 14 zeigt schaubildlich eine andere Ausführungsform
der Klammer bei Betrachtung von unien. wobei
der iinke Teil des Steges der Klammer dem Betrachter
näher liegt als die Enden der Klammer.
Fi g. 15 bis 19 erläutern schematisch die Verwendung
der Klammer gemäß der Fig. 14. Dabei zeigt die Fig. 19 die mittels des Klammerinstrumortls in die Form
eines geschlossenen C gebogene und in Gewebe eingebettete Klammer.
Die in der F i g. 1 gezeigte chirurgische Klammer 20 nach einer Ausführungsform der Erfindung besteht aus
einem im Querschnitt allgemein runden Metalldraht mit to einem Steg 22 und zu diesem rechtwinkligen, zueinander
parallelen Schenkeln 24, deren Enden unter Bildung von Spitzen 26 schräg abgeschnitten sind, damit die
Klammer 20 leicht und sauber in Gewebe einstechen kann. Die Klammer kann beispielsweise aus Draht aus
nichtrostendem Stahl 316L mit einem Durchmesser von 031 oder 0,56 mm hergestellt werden, doch liegt die
Verwendung anderer Werkstoffe und anderer Abmessungen im Ermessen des Fachmannes.
Gemäß der Erfindung sind im Steg 22 der Klammer 20 Nuten 32 ausgebildet, die in der nachstehend beschriebenen
Weise an den Schultern des Ambosses eines Klammerinstruments eingreifen. Die Nuten 32 sind
im Abstand voneinander in Bezug auf eine gedachte Quermittellinie 54 symmetrisch und in gleichen Abständen
von dem jeweils benachbarten Schenkel 24 angeordnet.
Vorzugsweise erstrecken sich die Nuten 32 rechtwinkelig zu der Längsrichtung des Steges 11.
Der Steg 22 der Klammer 20 ist ferner mit Vorzugsweise zwei im Abstand voneinander angeordneten
Querflächen 30 ausgebildet, die sich vorzugsweise rechtwinkelig zu der Längsrichtung des Steges 22 erstrecken
und in Bezug auf die gedachte Mittellinie 54 symmetrisch und jeweils zwischen einer der Nuten 32
und dem diesen benachbarten Schenkel 24 angeordnet sind. Dank der Ausbildung der Klammer mit diesen
Querflächen kann nach dem vollständigen Einsetzen der Klammer der Stößel von der Klammer weggezogen
werden, doch sind diese Querflächen nicht erfindungswesentlich. Die bevorzugte Anordnung, Orientierung
der Querflächen 30 und ihr bevorzugter Abstand voneinander sind in der US-PS 44 07 286 angegeben.
Die Nuten 32 sind in dem Steg 22 in einer Vertiefung ausgebildet, die von dem ebenen Vertiefungsgrund 28
begrenzt ist die ihrerseits von den Querflächen 30 begrenzt ist. Der Vertiefungsgrund 28 ist vorzugsweise bis
auf die Nuten 32 glatt und eben, doch ist dies nicht unbedingt erforderlich, sondern er kann jede gewünschte
Ausbildung haben, die das Klammern nicht stört.
Das Einsetzen der Klammer 20 mit einem Klammerinstrument «st in den F i g. 2 bis 5 schematisch dargestellt.
Gemäß der F i g. 2 bewegt der gegabelte Stößel 34 die Klammer 20 zwischen parallelen Führungen 50 zu
dem Amboß 40 hin. Der Stößel 34 und der Amboß 40 bilden die Klammerverformungseinrichtung. Der Stößel
34 besitzt Zwillingsköpfe 38, die eine zwischen ihnen angeordnete Vertiefung 36 begrenzen. Die distale Seite
52 des Ambosses 40 ist dem zu klammernden Hautgewebe 46 benachbart. Der Amboß ist so angeordnet, daß to
sich die beiden Sehenkel 24 der KlammeF auf je einer
Seite des zu schließenden Einschnitts oder der zu schließenden Wunde 44 befinden und die Spitzen 26 der
Klammerschenkel 24 der Klammer sind in Bezug auf den Amboß 40 symmetrisch angeordnet.
Wenn die Klammer 20 wie vorstehend angegeben orientiert und ausgerichv.t ist, ist die Vertiefung des
Vertiefungsgrundes 28 der Klammer der proximalen Seite 56 des Ambosses zugekehrt und sind die Nuten 32
in gleichen Abständen von den Seitenflächen 58 und den Schultern 42 des Ambosses angeordnet. Die Querflä
chen 30 sind notwendigerweise in gleichen Abständen von den Seitenflächen 58 angeordnet. (In der F i g. 2 ist
der Abstand der Nuten 32 von den Schultern 42 der Klarheit halber übertrieben groß dargestellt; tatsächlich
sind die Nuten 32 viel näher bei den Schultern 42 angeordnet)
Nachdem der Stößel die Klammer bis zur Berührung mit dem Amboß bewegt hat, trachtet der Steg 22 in
seiner Längsrichtung sich zu einem der Köpfen 38 des Stößels 34 hinzubewegen. Diese Bewegung wird gemäß
der F i g. 3 angehalten, indem die linke Nut 32 an der ihr benachbarten Schulter 42 des Ambosses 40 angreift
Wenn sich gemäß der F i g. 4 der Stößel 34 weiter zu dem Amboß 40 hinbewegt, während eine Nut 32 an der
Schulter 42 angreift, wird der Steg 22 gebogen, bis die
rechte Nut 32 an der anderen Schulter des Ambosses 40 angreift In diesem Zeitpunkt des Biegens der Klammer
20 ist deren Steg gemäß der Fig.4 .; Bezug zu dem
Amboß 40 symmetrisch angeordnet bzw. zentriert. Diese selbstzentrierende Wirkung der Klammer 20 ist sehr
vorteilhaft, weil dadurch gewährleistet wird, daß die Schenkel in das Gewebe in derselben Tiefe eingebettet
werden.
Die in der F i g. 5 gezeigte Stellung wird erreicht, wenn sich der Stößel 34 weiter zu dem Amboß 40 hinbewegt
hat, so daß sich die Köpfe 38 die äußeren Teile 48 des Steges 22 um die Seitenflächen des Ambosses herumbiegen.
Die Klammer 20 ist jetzt in die Form eines geschlossenen C umgebogen und in das Gewebe 46
eingebettet worden, in dem die Schenkel 24 im wesentlichen gleich tief eingebettet sind, und die Wunde oder
der Einschnitt 44 ist geschlossen worden. Dabei liegen die Querflächen 30 der Klammer unter der distalen Fläche
52 des Ambosses. Wenn dann zur Freigabe der Klammer von dem Klammerinsirument der Stößel 34
zurückgezogen wird, greifen die Querflächen 30 sri den
Ecken der distalen Fläche des Ambosses an, so daß die Klammer nicht durch den Reibungsschluß zwischen den
Schenkelteilen 48 und dem Stößel aus dem Patienten herausgezogen werden kann.
In der in der F i g. 6 gezeigten Stellung hat dir Stößel
34 den Vertiefungsgrund 28 des Steges 22 gegen den Amboß 40 gedrückt. Gemäß der F i g. 7 ist die Nut 32 in
der Nähe der Schulter 42 des Ambosses und die Querfläche 30 unterhalb der distalen Fiäche des Ambosses 40
angeordnet und die Klammer ist vollständig um den Amboß herumgezogen worden.
In der in den Fig;. 1 bis 7 gezeigten Form hat die
Klammer außer ihrer selbstzentrierenden Wirkung noch weitere Vorteile. Durch den im wesentlichen ebene.i
Vertiefungsgrund 28, der an dem Amboß 40 angreift, wird die Klammer während ihrer Verformung am
Amboß festgehalten, so daß die Gefahr eines Abwälzens oder Verdrehens der Klammer auf dem Amboß
während des Biegens der Klammer und ihres Hineindrückens in das Gewebe und die Gefahr eines Abrutschens
der Klammer von dem Amboß vor dem vollständigen Umbiegen der Klammer und dem Abziehen des
Klammerinstruments von der Klammer vermindert.
Die in der Fig.8 gezeigte Klammer 120 nach einer weiteren Ausführungsform besitzt ebenso wie die in der
Klammer 20gemäß d.τ F i g. 1 einen Steg 122 und parallele
Schenkel 124 mil scharfen Spitzen 126 sowie Querflächen 130 und zwischen diesen einen Vertiefungsgrund 128. Der einzige Unterschied zwischen der Klam-
mer 120 gemäß der F i g. 8 und der Klammer 20 gemäß der F ig. I bestehe darin, daß die Kraftaufnahmeelemente 132 zum Angriff an den Schultern des Ambosses nicht
von Nuten in den Vertiefungsgrund 28, sondern von Vorsprüngen oder Rippen auf dem Vertiefungsgrund
gebildet werden. Diese Rippen 132 führen aber dieselbe Funktion im wesentlichen in derselben Weise aus wie
die Nuten 32 der Klammer 20. Vorzugsweise sind die Rippen 132 etwa 2,5 mm breit und stehen von dem Vertiefungsgrund 128 des Steges etwa 0,050 bis etwa
0,076 mm weit vor, doch könnte man auch kleinere oder größere Rippen verwenden.
Die in der F i g. 9 gezeigte Klammer 220 nach einer weiteren Ausführungsform besitzt einen Steg 222 und
zwei parallele Schenkel 224 mit scharfen Spitzen 226 sowie Querflächen 230 und einen zwischen diesen angeordneten Vertiefungsgrund 258. Der einzige Unterschied zwischen der Klammer 20 gemäß F i g. I und der
Klammer 220 gemäß der F i g. 9 besteht darin, daß die an dem Steg 222 vorgesehenen Kraitauinahmeeiemente
zum Angriff an der Verformungseinrichtung, in dem Fall an den Schultern des Ambosses, von einem zweiten
Paar von Querflächen 232 gebildet werden, die an den Enden eines tiefelliegenden, zweiten Vertiefungsgrundes 228 angeordnet sind.
Die in der F i g. 10 gezeigte Klammer 320 nach einer weiteren Ausführungsform der Erfindung ähnelt der
Klammer 20 gemäß der F i g. 1 und kann ähnlich wie die Klammer 20 zum Klammern von Gewebe verwendet
werden. Die Klammer 320 besitzt einen Steg 322 und zwei parallele Schenkel 324 mit scharfen Spitzen 326
sowie einen Vertiefungsgrund 328 und an dem Steg 322 vorgesehene Kraftaufnahmeelementen zum Angriff an
der Verformungseinrichtung, in diesem Fall an den Schultern des Ambosses. Die Kraftaufnahmeelemente
werden nicht wie in der Klammer 20 gemäß den F i g. 1 bis 7 von Nuten, sondern wie in der Klammer 220 der
tr I — η ..-*— —...—Ι /Λ.. Mu-I — 9^*% UuJ-*
In den Fig. 11 bis 13 ist erläutert, wie mit Hilfe eines
Klammerinstruments, das einen trapezförmigen Amboß 340. übliche Führungen 350 und einen üblichen gegabelten Stößel 334 mit Zwillingsköpfen 338 und einer zwischen ihnen angeordneten Vertiefung 336 besitzt, die
Klammer 320 in ein Gewebe 346 eingebettet wird.
In der in der F i g. 11 gezeigten Stellung hat der Stößel 334 den Steg 322 der Klammer gegen den Amboß
340 gedrückt und ruhen die scharfen Spitzen 326 an den die Wunde oder den Einschnitt 344 umgebenden Gewebeteilen. Der ebene Vertiefungsgrund 328(F i g. 10) ruht
auf der proximalen (oberen) Seite des Ambosses, und die Querflächen 332 sind knapp jenseits der Schultern
342 des Ambosses angeordnet.
In der in der F i g, 12 gezeigten Stellung haben sich die
Köpfe 338 des StöSels so weit zu dem Amboß 340 hinbewegt daß der Steg 322 gebogen worden ist und die
Schenkel 324 zum Schließen der Wunde in das Gewebe 346 hineingedrückt worden sind. Jetzt greifen zum Zentrieren der Klammer die Querflächen 332 an den Schultern 343 an. (Beim ersten Berühren des Ambosses durch
die Köpfe bewegt sich die Klammer im allgemeinen in ihrer Längsrichtung.)
GemäU der Fig. 13 ist die Klammer vollständig in
dem Gewebe 346 eingebettet und fluchten ihre Spitzen miteinander. Die distale Fläche 352 des Ambosses ist der
Oberfläche des Gewebes 346 benachbart. Die einwärts von den Schultern 342 des Ambosses angeordneten
Querflächen 332 verhindern ein Herausziehen der Klammer aus dem Gewebe 346 beim Herausziehen des
Stößels 334. Diese Funktion üben die Querflächen 33: zusätzlich zu dem Zentrieren der Klammer auf den
Amboß aus(Fig. 12).
Die in den Fig. 14 bis 19 gezeigte Klammer 420 nacl
einer weiteren Ausführungsform der Erfindung besitz einen Steg 422 und zwei parallele Schenkel 424 mi
scharfen Spitzen 426 sowie an den Enden des Vertie fungsgrundes 418 angeordnete Querflachen 430 um
Kraftaufnahmelemente, die an der Verformungseinrich
tung, in diesem Fall an den Zwillingsköpfen des Stößel:
434, angreifen, wenn dieser den Steg 422 der Klammei
gegen den Amboß 440 drückt. Diese Kraftaufnahmeele mente werden von Nuten 432 auf der von den Sehen·
kein 424 entfernten, proximalen (oberen) Seite des Ste
ges 422 der Klammer gebildet (F ig. 15).
Gemäß der Fig. 15 wird die Klammer 420 zwischer
Führungen 450 eines üblichen Klammerinstruments ge halten, in dem ein gegabelter Stößel 434 mit durch di<
Vertiefung 436 voneinander getrennten Zwillingsköp
w fen 438 den Steg 422 der Klammer 420 gegen den Am
boß 440 des Klammerinstruments drückt. Dabei greifer
die Spitzen 426 an dem die Wunde oder den Einschnit
444 umgebenden Gewebe 446 an.
Berührung gelangen, trachtet der Steg 422, sich in seinei
Längsrichtung auf dem Amboß nach rechts zu bewegen bis er angehalten wird, weil die linke Nut 432 an dei
Stirnkante 454 des linken Kopfes 438 des Stößels an greift (F ig. 16).
Wenn dann der Steg 422 stärker gekrümmt wird, bewegt sich gemäß der Fig. 17 die rechte Nut 432 bis zum
Angriff an der Stirnkante 454 des rechten Kopfes 438 nach rechts, so daß die Klammer jetzt zentriert ist Danr
wird der Steg weiter verformt (Fig. 18), bis die Klam·
mer 420 vollständig in dem Gewebe 446 eingebettet ist
und die Schenkel 424 miteinander fluchten (F ig. 19).
ivi aiiauiiittiiincciciiiciuc, £. o. uci i**uicn J£ gtmiau uci
Abstand voneinander nicht kritisch, doch sollen sie in
nerhalb bestimmter Bereiche liegen. Die Kraftaufnah meelementc können jede Größe und jede Form haben
sofern gewährleistet ist daß das eine der beiden Kraft aufnahmeelemente (a) an einer der beiden Schultern
eines Ambosses oder einem Kopf eines gegabelten Sto
ßels angreift, wenn sich der Steg der Klammer bei deren Verformung in seiner Längsrichtung bewegt und (b) die
se Längsbewegung während des Biegens des Steges behindert wird, so daß das zweite Kraftaufnahmeelement
mit der zweiten Schulter des Ambosses oder dem zweiten Kopf des Stößels in Berührung gelangt und dadurch
die Klammer wieder zentriert wird.
Dabei sollen die Kraftaufnahmeelemente so angeordnet sein, daß sie eine zu weitgehende Längsbewegung
verhindern, bis diese Bewegung durch den Angriff an der Verformungseinrichtung angehalten wird. Die
Kraftaufnahmeelemente sind in dem Steg der Klammer vorzugsweise symmetrisch zu der Quermittellinie dieses
Steges angeordnet. Wenn die Kraftaufnahmeelemente
bo an Schultern des Ambosses angreifen sollen, müssen die
Elemente einen solchen Abstund voneinander haben, daß bei der vor ihrer Verformung auf dem Amboß zentrierter Klammer das auf jeder Seite vorgesehene
Kraftaufnahmeelement über die Schulter eine Strecke
weit vorsteht die gleich der Hälfte von der Differenz
zwischen der Bogenlänge und der Sehnenlänge des maximal verformten Steges der Klammer ist
einrichtung bestimmten Kraftaufnahmeelemente 32,
132, 232, 332, 432 können mit den Angriff gewährleistenden Einrichtungen versehen sein, beispielsweise mit
aufgerauhten Flächen.
132, 232, 332, 432 können mit den Angriff gewährleistenden Einrichtungen versehen sein, beispielsweise mit
aufgerauhten Flächen.
Hierzu 4 Blatt Zeichnungen
JO
40
45
50
55
60
Claims (5)
1. Selbstzentrierende chirurgische Klammer mit einem Steg und zwei mit dem Steg verbundenen
Schenkeln zum Einsetzen in das Gewebe eines Patienten mit Hilfe der Verformungseinrichtung eines
chirurgischen Klammerinstruments, wobei die Verformungseinrichtung
einen Stöße! und einen Amboß mit Schultern besitzt, um die der Stößel die Klammer
bei ihrem Einsetzen herumbiegt, dadurch gekennzeichnet, daß der Steg (22; 122; .222;
322; 422) mit Kraftaufnahmeelementen (32; 132; 232; 332; 432) versehen ist. die in Bezug auf die
Quermittellinie (54) des Steges symmetrisch angeordnet sind und an der Verformungseinrichtung (34,
40; 334,340; 434,440) so angreifen, daß beim Biegen
der Klammer (20; 120; 220; 320; 420) dieselbe auf dem Amboß (40; 340; 440) zentriert ist
2. Chirurgische Klammer nach Anspruch 1, dadurch gekennzeichnet, daß die Kraftaufnahmeelemente
(432) auf der Seite des Steges (422) vorgesehen sind, an der der Stößel (434) beim Biegen der
Klammer angreift (F ig. 14—19).
3. Chirurgische Klammer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kraftaufnahmeelemente
von zwei Nuten (32; 232; 332; 432) gebildet werden.
4. Chirurgische Klammer nach Anspruch 1, dadurch gekennzeichnet, daß die Kraftaufnahmeelemente
auf der Seite des Stößels (34; 334) vorgesehen sind, an der die Schultern des Ambosses (40; 340)
beim Biegen der Klamrv.er angr .-ifen.
5. Chirurgische Klarm.ier nach Anspruch 4, dadurch
gekennzeichnet, dal5 die Xraftaufnahmeelemente von Vorsprüngen (132) gebildet werden.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19440780A | 1980-10-17 | 1980-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3152430A1 DE3152430A1 (en) | 1982-11-18 |
| DE3152430C2 true DE3152430C2 (de) | 1985-01-03 |
Family
ID=22717489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3152430A Expired DE3152430C2 (de) | 1980-10-17 | 1981-10-09 | Selbstzentrierende chirurgische Klammer |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4489875A (de) |
| EP (1) | EP0050554B1 (de) |
| JP (1) | JPS6134812B2 (de) |
| AT (1) | ATE17312T1 (de) |
| AU (1) | AU542936B2 (de) |
| BR (1) | BR8108844A (de) |
| CA (1) | CA1170537A (de) |
| DE (1) | DE3152430C2 (de) |
| GB (1) | GB2098696B (de) |
| WO (1) | WO1982001308A1 (de) |
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| DE19711288A1 (de) * | 1997-03-18 | 1998-10-01 | Helmut Dipl Ing Wurster | Chirurgische Klammer und Applikator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3643851A (en) * | 1969-08-25 | 1972-02-22 | United States Surgical Corp | Skin stapler |
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| CH342781A (de) * | 1956-06-06 | 1959-11-30 | Schnell & Schoeneberg | Befestigungsklammer |
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- 1981-07-09 AU AU72709/81A patent/AU542936B2/en not_active Expired
- 1981-10-08 CA CA000387571A patent/CA1170537A/en not_active Expired
- 1981-10-09 JP JP56503406A patent/JPS6134812B2/ja not_active Expired
- 1981-10-09 WO PCT/US1981/001374 patent/WO1982001308A1/en active Application Filing
- 1981-10-09 DE DE3152430A patent/DE3152430C2/de not_active Expired
- 1981-10-09 BR BR8108844A patent/BR8108844A/pt unknown
- 1981-10-09 EP EP81401571A patent/EP0050554B1/de not_active Expired
- 1981-10-09 GB GB8215458A patent/GB2098696B/en not_active Expired
- 1981-10-09 AT AT81401571T patent/ATE17312T1/de not_active IP Right Cessation
-
1982
- 1982-05-25 US US06/381,865 patent/US4489875A/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643851A (en) * | 1969-08-25 | 1972-02-22 | United States Surgical Corp | Skin stapler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19711288A1 (de) * | 1997-03-18 | 1998-10-01 | Helmut Dipl Ing Wurster | Chirurgische Klammer und Applikator |
| DE19711288B4 (de) * | 1997-03-18 | 2004-11-04 | Helmut Dipl.-Ing. Wurster | Applikator zum Aufnehmen und Schließen einer chirurgischen Klammer |
Also Published As
| Publication number | Publication date |
|---|---|
| AU542936B2 (en) | 1985-03-28 |
| GB2098696B (en) | 1985-06-12 |
| CA1170537A (en) | 1984-07-10 |
| US4489875A (en) | 1984-12-25 |
| GB2098696A (en) | 1982-11-24 |
| EP0050554B1 (de) | 1986-01-08 |
| EP0050554A1 (de) | 1982-04-28 |
| ATE17312T1 (de) | 1986-01-15 |
| JPS6134812B2 (de) | 1986-08-09 |
| WO1982001308A1 (en) | 1982-04-29 |
| AU7270981A (en) | 1982-04-22 |
| BR8108844A (pt) | 1982-09-21 |
| DE3152430A1 (en) | 1982-11-18 |
| JPS57501562A (de) | 1982-09-02 |
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| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |