DE4303544A1 - Surgical instrument for applying clips to surgical incision - has reloading magazine which holds clips in sterile environment - Google Patents

Surgical instrument for applying clips to surgical incision - has reloading magazine which holds clips in sterile environment

Info

Publication number
DE4303544A1
DE4303544A1 DE19934303544 DE4303544A DE4303544A1 DE 4303544 A1 DE4303544 A1 DE 4303544A1 DE 19934303544 DE19934303544 DE 19934303544 DE 4303544 A DE4303544 A DE 4303544A DE 4303544 A1 DE4303544 A1 DE 4303544A1
Authority
DE
Germany
Prior art keywords
instrument
clips
magazine
reloading
characterized
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.)
Ceased
Application number
DE19934303544
Other languages
German (de)
Inventor
Horst Dittrich
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.)
Karl Storz SE and Co KG
Original Assignee
Karl Storz SE and Co KG
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
Priority to DE4203606 priority Critical
Application filed by Karl Storz SE and Co KG filed Critical Karl Storz SE and Co KG
Priority to DE19934303544 priority patent/DE4303544A1/en
Publication of DE4303544A1 publication Critical patent/DE4303544A1/en
Application status is Ceased legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/0682Surgical staplers, e.g. containing multiple staples or clamps for applying U-shaped staples or clamps, e.g. without a forming anvil
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122Clamps or clips, e.g. for the umbilical cord
    • A61B17/1222Packages or dispensers therefor

Abstract

A surgical instrument for applying U-shaped or V-shaped clips has a magazine in which the clips are arranged one behind another in at least one row. The instrument has a mechanism (6, 7) which enables the clip, nearest to the distal end of the instrument, to be pushed out through an opening in the distal end. A reloading magazine (2) can be fitted to the distal end of the instrument. The clips held in the reloading magazine are then easily transferred to the magazine fixed to the instrument. USE/ADVANTAGE - Applying clips to a surgical incision. The reloading magazine holds the clips in a sterile environment until they are required for use.

Description

Die Erfindung bezieht sich auf ein chirurgisches In strument zum Anbringen von V- oder U-förmigen Klammern, mit einem Magazin, in dem die Klammern in wenigstens einer Reihe hintereinander angeordnet sind, einem Vor schubelement, das jeweils die dem distalen Ende des Instruments nächste Klammer aus einer Öffnung am dista len Ende ausschiebt, und einem Schubmechanismus zum Vorschieben des Vorschubelements, der durch ein am proximalen Ende angeordnetes Betätigungselement betä tigbar ist. The invention relates to a surgical In instrument for applying V- or U-shaped clips, with a magazine, in which the staples are arranged in at least one row one behind the other a pre thrust member which is respectively next to the distal end of the instrument clamp ausschiebt from an opening at dista len end, and a thrust mechanism for feeding the feed member which is betae tigbar by a valve disposed at the proximal end of actuator.

Derartige Instrumente werden für die verschiedensten chirurgischen Nahtvorgänge benötigt. Such instruments are needed for a variety of surgical suture operations.

Bei den gegenwärtigen auf dem Markt befindlichen In strumenten ist ein Nachladen des Magazins nicht oder nur beschränkt möglich. located in present on the market in strumenten recharging of the magazine is not, or only to a limited extent. Die meisten der gegenwärtig erhältlichen Instrumente sind nämlich als sog. Einweg- Instrumente ausgeführt, die nach dem Verbrauch der im Magazin befindlichen Klammern weggeworfen werden müs sen. Most of the instruments currently available are in fact designed as a so-called. Disposable instruments Müs be discarded after consumption of the staples in the magazine sen.

In der Patentliteratur sind zwar verschiedentlich nach ladbare Instrumente beschrieben worden, diese Instru mente haben sich jedoch aus den verschiedensten Gründen nicht durchsetzen können: While instruments are in the patent literature variously by loadable been described, these Instru ments, however, have not been successful for various reasons:

So muß bei dem aus der DE 29 10 454 A1 bekannten In strument das Magazin vollständig ausgetauscht werden. Thus, the magazine must be completely replaced with the process known from DE 29 10 454 A1 In instrument. Austauschbare Magazine führen ua aber zu Problemen bei der Sterilisierung der Instrumente. Removable magazines lead among other things but problems with the sterilization of the instruments.

Weitere Nahtgeräte sind aus den europäischen Offen legungsschriften EP 02 69 226 A1 und EP 03 23 016 A1 sowie den deutschen Patentveröffentlichungen 29 49 389 A1, 30 02 847 A1, 31 09 657 A1, 35 90 364 C2 und 36 15 405 A1 bekannt. Other suture devices are known from European open legungsschriften EP 02 69 226 A1 and EP 03 23 016 A1 and German Patent Publications 29 49 389 A1, 30 02 847 A1, 31 09 657 A1, 35 90 364 C2 and 36 15 405 A1.

Auch bei den in diesen Patentveröffentlichungen be schriebenen Instrumenten ist ein Nachladevorgang entwe der nicht oder nur eingeschränkt möglich. Even with the be in these patent publications written instruments of a reloading process is entwe the non or limited.

Der Erfindung liegt die Aufgabe zugrunde, ein chirurgi sches Instrument zum Anbringen von V- oder U-förmigen Klammern derart weiterzubilden, daß der Nachladevorgang einfach und ohne Sterilitätsverlust auszuführen ist. The object of the invention is to provide a chirurgi policy tool for applying V- or U-shaped brackets to further develop such that the reloading process is to be performed simply and without loss of sterility.

Eine erfindungsgemäße Lösung dieser Aufgabe ist mit ihren Weiterbildungen in den Patentansprüchen gekenn zeichnet. An achievement of this object is characterized marked with its developments in the claims.

Erfindungsgemäß ist am distalen Ende des Instruments ein Nachlademagazin ansetzbar ist, aus dem Klammern in das Magazin des Instruments überführbar sind. According to the invention at the distal end of the instrument Nachlademagazin be attached, from the clips can be transferred into the magazine of the instrument. Hierdurch ist es möglich, sterile Klammern ohne Berührung mit nicht-sterilen Teilen oder durch gegebenenfalls unste riles Bedienungspersonal in das chirurgische Instrument zu überführen. This makes it possible to transfer sterile brackets without contact with non-sterile parts, or by optionally unste riles operating personnel in the surgical instrument.

Vor allem aber ist es möglich, V- oder U-förmige Klam mern, die in dem Instrument "flach liegend" und nicht "stehend" hintereinander angeordnet sind, nachzuladen. Above all, it is possible, V- or U-shaped Klam chambers which are arranged in the instrument "laid flat" and not "standing" in succession to reload.

Die Verwendung eines Nachlademagazins, das am distalen Ende des Instruments ansetzbar ist, hat aber vor allem den Vorteil, daß der Querschnitt des Instruments trotz seiner Nachladbarkeit klein bleibt, so daß das erfin dungsgemäße Instrument jederzeit beispielsweise in einen Endoskopschaft mit geringem freiem Lumen einge setzt werden kann. but the use of Nachlademagazins, which can be attached at the distal end of the instrument, has especially the advantage that the cross section of the instrument is small despite its reloadability so that the OF INVENTION dung modern instrument at any time is, for example, in an endoscope shaft with little free lumen is to be can.

Die Erfindung wird nachstehend unter Bezugnahme auf die Zeichnung näher beschrieben, in der ein Ausführungsbei spiel dargestellt ist, und in der zeigen: The invention is described below with reference to the drawing, in which a Ausführungsbei illustrated game, and in the drawings:

Fig. 1 ein erfindungsgemäß ausgestaltetes chirurgi sches Instrument im Längsschnitt sowie in ver schiedenen weiteren Schnitten, und Fig. 1 is an invention designed according chirurgi policy tool in longitudinal section and in different ver other sections, and

Fig. 2 ein Nachlademagazin im gefüllten und leeren Zustand im Querschnitt und in Aufsicht. Fig. 2 is a Nachlademagazin in the filled and empty state in cross section and in top view.

Fig. 1 zeigt ein chirurgisches Instrument zum Anbringen von V- oder U-förmigen Klammern im Längsschnitt sowie in verschiedenen weiteren Schnitten, bezüglich deren Lage und Schnittrichtung auf die Zeichnung verwiesen wird. Fig. 1 shows a surgical instrument for applying V- or U-shaped brackets in the longitudinal section as well as in various other sections with respect to their position and cutting direction, reference is made to the drawings.

Das Instrument weist ein Magazin 1 auf, in dem die sterilen U- oder V-förmigen Klammern "liegend" in we nigstens einer Reihe hintereinander angeordnet sind. The instrument includes a magazine 1 in which the sterile U- or V-shaped brackets "lying" in nigstens we row behind each other are arranged. Ein Vorschubelement 2 , das insbesondere in dem unter dem Hauptteil der Fig. 1 angeordneten Schnittbild dar gestellt ist, schiebt jeweils die dem distalen Ende 3 des Instruments nächste Klammer 4 aus einer Öffnung 5 am distalen Ende 3 aus. A feed element 2 which is provided in particular in the arranged under the main part of FIG. 1 is sectional view, respectively pushes the distal end 3 of the instrument 4 from next clip from an opening 5 at the distal end 3. Hierzu hat das Vorschubelement bevorzugt eine der jeweils auszuschiebenden Klammer angepaßte vordere Kontur bzw. Eingriffsfläche. For this purpose, the feed element preferably has a of each bracket adapted auszuschiebenden front contour or engagement surface.

Ein Schubmechanismus 6 zum Vorschieben des Vorschubele ments 2 ist durch ein am proximalen Ende 7 angeordnet es Betätigungselement 8 betätigbar. A thrust mechanism 6 for feeding the Vorschubele component 2 is formed by a proximal end 7 is arranged actuating member 8 actuated. Hierzu sind ein nicht näher bezeichneter Griff, eine Raste usw. vorgesehen, mit denen eine gespannte Feder 9 soweit gelöst wird, daß gerade eine Klammer aus dem distalen Ende aus ge schoben wird. For this purpose, an unspecified handle, a detent, etc., are provided, with which a compressed spring 9 is released so far that just a staple is pushed out of the distal end of Ge.

Bezüglich weiterer Einzelheiten wird ausdrücklich auf die Zeichnung verwiesen. For further details, reference is made expressly to the drawing.

Am distalen Ende 3 des Instruments ist ein in Fig. 2 dargestelltes Nachlademagazin ansetzbar, aus dem Klam mern in das Magazin 1 des Instruments überführbar sind. At the distal end 3 of the instrument shown in Fig. 2 Nachlademagazin be attached, from the Klam chambers in the magazine 1 of the instrument can be transferred.

Dabei werden die Klammern beim Nachladen in etwa in Richtung der Längsachse des Instruments vorgeschoben, also in einer Richtung, die der Richtung beim Ausstoß einer Klammer entgegengesetzt ist. The staples are advanced while reloading approximately in the direction of the longitudinal axis of the instrument, thus in a direction opposite to the direction during the ejection of a staple.

Das Nachlademagazin weist einen Teil 10 auf, in den das distale Ende des Instruments einsetzbar ist. The Nachlademagazin has a part 10 into which the distal end of the instrument can be inserted. Hierdurch ist sichergestellt, daß die Sterilität der Klammern gewährleistet bleibt. This ensures that the sterility of the brackets is ensured. Mittels eines Schiebers 11 , der manuell über ein Betätigungselement 12 betätigbar ist, können die Klammern 13 in das Magazin 1 des Instruments geschoben werden, ohne daß die Klammern von der Bedie nungsperson berührt werden könnten. By means of a slide 11 which can be actuated manually using an actuating element 12, the brackets can be pushed into the magazine 1 of the instrument 13, without the brackets could be affected by the voltage Bedie person. Dabei werden die Klammern aus dem Nachlademagazin in einer Reihe gemein sam in das Magazin 1 des Instruments überführt. The staples from the Nachlademagazin are common in a number sam transferred into the magazine 1 of the instrument.

Durch das Nachladen des Magazins 1 des Instruments wird gleichzeitig die Feder 9 gespannt, die Bestandteil des Vorschubmechanismus 2 ist. By reloading the magazine 1 of the instrument, the spring 9 is tensioned at the same time, which is part of the feed mechanism. 2 Damit ist sichergestellt, daß nach erfolgtem Ladevorgang der Operateur immer ein betriebsbereites Instrument vorfindet. This ensures that after successful charging the surgeon always finds an operational instrument. Andererseits ist durch den selbsttätigen Spannvorgang beim Nachladen gewährleistet, daß die Feder 9 nicht zu stark gespannt wird. On the other hand, is guaranteed by the automatic clamping operation during recharging that the spring 9 is not too tight.

Bezüglich weiterer Einzelheiten wird auf die Figuren verwiesen, die ausdrücklich Bestandteil der erfindungs gemäßen Offenbarung sind. For further details, reference is made to the figures that are explicitly part of contemporary fiction, revelation.

Claims (6)

1. Chirurgisches Instrument zum Anbringen von V- oder U-förmigen Klammern, mit 1. A surgical instrument for applying V- or U-shaped clips, with
einem Magazin, in dem die Klammern in wenigstens einer Reihe hintereinander angeordnet sind, a magazine, in which the staples are arranged in at least one row one behind the other,
einem Vorschubelement, das jeweils die dem distalen Ende des Instruments nächste Klammer aus einer Öffnung am distalen Ende ausschiebt, a feed element which ausschiebt each next to the distal end of the instrument clamp from a distal end opening,
einem Schubmechanismus zum Vorschieben des Vorschubele ments, der durch ein am proximalen Ende angeordnetes Betätigungselement betätigbar ist, a thrust mechanism for feeding the Vorschubele ments which can be actuated by a valve disposed at the proximal end of actuating element,
dadurch gekennzeichnet, daß am distalen Ende des In struments ein Nachlademagazin ansetzbar ist, aus dem Klammern in das Magazin des Instruments überführbar sind. characterized in that the a Nachlademagazin be attached to the distal end In struments from which staples can be converted into the magazine of the instrument.
2. Instrument nach Anspruch 1, dadurch gekennzeichnet, daß die Klammern beim Nachladen in einer Richtung vorgeschoben werden, die der Richtung beim Ausstoß einer Klammer entgegengesetzt ist. 2. Instrument according to claim 1, characterized in that the clips are advanced while reloading in a direction opposite to the direction during the ejection of a staple.
3. Instrument nach Anspruch 2, dadurch gekennzeichnet, daß das Nachlademagazin einen Schieber für die Klammern aufweist, der manuell betä tigbar ist. 3. An instrument according to claim 2, characterized in that the Nachlademagazin has a slide for the clamps which is manually betae tigbar.
4. Instrument nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß durch das Nachladen des Magazins eine Feder gespannt wird, die Bestandteil des Vorschubmechanismus ist. 4. An instrument according to any one of claims 1 to 3, characterized in that a spring is tensioned by the reloading of the magazine, which is part of the feed mechanism.
5. Instrument nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Klammern aus dem Nach lademagazin in einer Reihe gemeinsam in das Magazin des Instruments überführt werden. 5. An instrument according to one of claims 1 to 4, characterized in that the staples from the loading magazine After be transferred in a row jointly in the magazine of the instrument.
6. Instrument nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Instrument einen Quer schnitt aufweist, der ein Einsetzen in einen Endoskop- Schaft mit geringem Lumen erlaubt. having 6, An instrument according to any one of claims 1 to 5, characterized in that the instrument is a cross-section which permits insertion into an endoscopic shaft with a low lumen.
DE19934303544 1992-02-07 1993-02-08 Surgical instrument for applying clips to surgical incision - has reloading magazine which holds clips in sterile environment Ceased DE4303544A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4203606 1992-02-07
DE19934303544 DE4303544A1 (en) 1992-02-07 1993-02-08 Surgical instrument for applying clips to surgical incision - has reloading magazine which holds clips in sterile environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934303544 DE4303544A1 (en) 1992-02-07 1993-02-08 Surgical instrument for applying clips to surgical incision - has reloading magazine which holds clips in sterile environment

Publications (1)

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DE4303544A1 true DE4303544A1 (en) 1993-09-23

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0697198A1 (en) * 1994-08-17 1996-02-21 Aesculap Ag Surgical clip applier
US5626586A (en) * 1994-05-05 1997-05-06 Wilo-Medizintechnik Lothar Wilberg Gmbh Pistols for setting surgical clamps
US5895394A (en) * 1996-09-24 1999-04-20 Aesculap Ag & Co. Kg Surgical Applicator for U-shaped clips
WO1999026544A1 (en) * 1997-11-26 1999-06-03 Bionx Implants Oy Device for installing a tissue fastener
US6457625B1 (en) 1998-02-17 2002-10-01 Bionx Implants, Oy Device for installing a tissue fastener
USRE38445E1 (en) 1994-05-05 2004-02-24 Tyco Healthcare Group, Lp Pistols for setting surgical clamps
US7731724B2 (en) 2005-04-14 2010-06-08 Ethicon Endo-Surgery, Inc. Surgical clip advancement and alignment mechanism
US7740641B2 (en) 2005-04-14 2010-06-22 Ethicon Endo-Surgery, Inc. Clip applier with migrational resistance features
US7784663B2 (en) 2005-03-17 2010-08-31 Ethicon Endo-Surgery, Inc. Surgical stapling instrument having load sensing control circuitry
US7857183B2 (en) 2004-07-28 2010-12-28 Ethicon Endo-Surgery, Inc. Surgical instrument incorporating an electrically actuated articulation mechanism
US7862579B2 (en) 2004-07-28 2011-01-04 Ethicon Endo-Surgery, Inc. Electroactive polymer-based articulation mechanism for grasper
US7879070B2 (en) 2004-07-28 2011-02-01 Ethicon Endo-Surgery, Inc. Electroactive polymer-based actuation mechanism for grasper
US7914551B2 (en) 2004-07-28 2011-03-29 Ethicon Endo-Surgery, Inc. Electroactive polymer-based articulation mechanism for multi-fire surgical fastening instrument
US8038686B2 (en) 2005-04-14 2011-10-18 Ethicon Endo-Surgery, Inc. Clip applier configured to prevent clip fallout
US8057508B2 (en) 2004-07-28 2011-11-15 Ethicon Endo-Surgery, Inc. Surgical instrument incorporating an electrically actuated articulation locking mechanism
US8075571B2 (en) 2005-04-14 2011-12-13 Ethicon Endo-Surgery, Inc. Surgical clip applier methods
US8236012B2 (en) 2005-04-14 2012-08-07 Ethicon Endo-Surgery, Inc. Surgical clip advancement mechanism
US8246634B2 (en) 2005-04-14 2012-08-21 Ethicon Endo-Surgery, Inc. Surgical clip applier ratchet mechanism
US8262679B2 (en) 2009-10-09 2012-09-11 Ethicon Endo-Surgery, Inc. Clip advancer
US8267945B2 (en) 2009-10-09 2012-09-18 Ethicon Endo-Surgery, Inc. Clip advancer with lockout mechanism
US8317074B2 (en) 2004-07-28 2012-11-27 Ethicon Endo-Surgery, Inc. Electroactive polymer-based articulation mechanism for circular stapler
US8523882B2 (en) 2005-04-14 2013-09-03 Ethicon Endo-Surgery, Inc. Clip advancer mechanism with alignment features
US8905977B2 (en) 2004-07-28 2014-12-09 Ethicon Endo-Surgery, Inc. Surgical stapling instrument having an electroactive polymer actuated medical substance dispenser
US8915930B2 (en) 2005-04-14 2014-12-23 Ethicon Endo-Surgery, Inc. Force limiting mechanism for medical instrument
US9370400B2 (en) 2011-10-19 2016-06-21 Ethicon Endo-Surgery, Inc. Clip applier adapted for use with a surgical robot
US9468440B2 (en) 2011-03-31 2016-10-18 Aesculap Ag Surgical clip applicator
DE102007047631B4 (en) 2006-10-04 2019-07-04 Karl Storz Se & Co. Kg Surgical instrument for applying surgical consumables such as clips o.

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DE2949389A1 (en) * 1978-12-08 1980-06-19 Vnii Ispytatel Med Tech Surgical apparatus for zusammennaehen of skin tissue
DE2910454A1 (en) * 1979-02-12 1980-09-18 Inst Chirurgii Im A V Vischnev The suturing device for zusammennaehen of roehrenartigen organs with U-shaped metal brackets
DE3002847A1 (en) * 1979-03-26 1980-10-16 Vnii Ispytatel Med Tech A surgical suturing apparatus for applying a seam formed by clinging
DE3109657A1 (en) * 1981-01-28 1982-08-12 Senco Products surgical klammersetzgeraet
EP0087938B1 (en) * 1982-02-26 1986-09-17 Ethicon Inc. Surgical clip applier with in-line cartridge and interruptable biased feeder
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DE3590364C2 (en) * 1984-07-27 1988-01-07 Us Surgical Copr Instrument for applying surgical clips
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EP0269226A1 (en) * 1986-11-26 1988-06-01 United States Surgical Corporation Surgical stapling instrument and transfer magazine as well as method of performing multiple stapling functions
DE3704759C1 (en) * 1987-02-16 1988-03-03 Aesculap Werke Ag Method and device for filling C-shaped scalp clips into the magazine of a scalp clip applicator
EP0323016A1 (en) * 1987-12-31 1989-07-05 United States Surgical Corporation Surgical fastener cartridge
EP0409569A1 (en) * 1989-07-18 1991-01-23 United States Surgical Corporation Apparatus for applying surgical clips in laparoscopic or endoscopic procedures

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626586A (en) * 1994-05-05 1997-05-06 Wilo-Medizintechnik Lothar Wilberg Gmbh Pistols for setting surgical clamps
USRE38445E1 (en) 1994-05-05 2004-02-24 Tyco Healthcare Group, Lp Pistols for setting surgical clamps
EP0697198A1 (en) * 1994-08-17 1996-02-21 Aesculap Ag Surgical clip applier
US5895394A (en) * 1996-09-24 1999-04-20 Aesculap Ag & Co. Kg Surgical Applicator for U-shaped clips
WO1999026544A1 (en) * 1997-11-26 1999-06-03 Bionx Implants Oy Device for installing a tissue fastener
US6457625B1 (en) 1998-02-17 2002-10-01 Bionx Implants, Oy Device for installing a tissue fastener
US7914551B2 (en) 2004-07-28 2011-03-29 Ethicon Endo-Surgery, Inc. Electroactive polymer-based articulation mechanism for multi-fire surgical fastening instrument
US8317074B2 (en) 2004-07-28 2012-11-27 Ethicon Endo-Surgery, Inc. Electroactive polymer-based articulation mechanism for circular stapler
US8057508B2 (en) 2004-07-28 2011-11-15 Ethicon Endo-Surgery, Inc. Surgical instrument incorporating an electrically actuated articulation locking mechanism
US7857183B2 (en) 2004-07-28 2010-12-28 Ethicon Endo-Surgery, Inc. Surgical instrument incorporating an electrically actuated articulation mechanism
US7862579B2 (en) 2004-07-28 2011-01-04 Ethicon Endo-Surgery, Inc. Electroactive polymer-based articulation mechanism for grasper
US7879070B2 (en) 2004-07-28 2011-02-01 Ethicon Endo-Surgery, Inc. Electroactive polymer-based actuation mechanism for grasper
US8905977B2 (en) 2004-07-28 2014-12-09 Ethicon Endo-Surgery, Inc. Surgical stapling instrument having an electroactive polymer actuated medical substance dispenser
US7784663B2 (en) 2005-03-17 2010-08-31 Ethicon Endo-Surgery, Inc. Surgical stapling instrument having load sensing control circuitry
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