Surgery – Instruments – Forceps
Patent
1998-07-17
1999-10-19
Buiz, Michael
Surgery
Instruments
Forceps
606207, A61B 1728, A61B 1742, A61B 1744
Patent
active
059680741
ABSTRACT:
A surgical instrument having at least two distal jaw parts each having a proximal part, an instrument holder for enabling a user to hold the surgical instrument, a pull-push rod connected to the jaw parts for pivotably moving the jaw parts such that the jaw parts are movable commonly and in opposite directions from one another, and a sliding block guide for guiding movement of the push-pull rod consisting of a circular arc-shaped groove foamed in the proximal part of each the jaw part. Each circular groove in each respective jaw part is displaced by 180.degree. from another circular groove in another jaw part. Each circular groove defining a virtual circle. At least two circular arc-shaped groove blocks are disposed on the instrument holder. Each circular groove block being configured to slidably engage a corresponding circular groove, such that a center of each virtual circle is defined about each groove block and at least two linkage arms for enabling the pull-push rod to manipulate the jaw parts, each having a first end and a second end. The first end of each linkage arm being connected to the push-pull rod, and the second end of each linkage rod being connected to the proximal part of the corresponding jaw part at a linkage point positioned at a predetermined distance from the virtual circle defined by the circular groove of said corresponding jaw part.
REFERENCES:
patent: 4712545 (1987-12-01), Honkanen
patent: 4887612 (1989-12-01), Esser et al.
patent: 5456695 (1995-10-01), Herve Dallemagne
patent: 5478351 (1995-12-01), Meade et al.
Bui Uy Q.
Buiz Michael
Richard Wolf GmbH
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