Surgery – Instruments – Cutting – puncturing or piercing
Patent
1997-10-08
2000-11-14
Buiz, Michael
Surgery
Instruments
Cutting, puncturing or piercing
606205, 30124, A61B 1732
Patent
active
06146399&
ABSTRACT:
Hand manipulable tissue cutting apparatus formed in a scissors like configuration and having first and second clamp members pivotably coupled with first and second jaws in opposing facing interoperative relation. On at least one clamp member surface a plane is defined at the area of the jaws, the plane being generally perpendicular to the opposing abutting faces of the jaws. A sheath is provided of a first sheath portion attached, or formed integrally with a first clamp member, and a second sheath portion attached or formed integrally with the second clamp member. In the closed clamp position, the first and second sheath portions form generally parallel guide recesses. A blade member is provided with a width and thickness sufficient for sliding within the guide recesses so-formed. In the open position of the clamp, the first sheath portion integral with the first clamp member is configured for retaining the blade in its retracted position. A spring biased latch strip is attached on one end to the first clamp member, with the other end of the latch strip having a projection for engaging a detent in the side edge of the blade with the blade retracted. Means are provided on the first clamp member for precluding unintentional withdrawal of the blade. In operation the tissue is clamped, after which the blade is pushed forward (relative to the operator position) for cutting the so-clamped tissue. In an alternative embodiment, the jaws are adjustable to enable only partial cutting of the clamped tissue or body part.
REFERENCES:
patent: 2679249 (1954-05-01), Weihmann
patent: 5749893 (1998-05-01), Vidal et al.
Buiz Michael
Ho Tan-Uyen T.
Roberts Edward E.
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