Soft tissue biopsy instrument
OwnerNoah I. Schiffmaninventor
Life of this patent
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Abstract
A surgical instrument for biopsying soft body tissue includes: (1) a distal barrel section, which includes: (a) a hollow barrel having an open, distal end and a proximal end; (b) a piston rod which movably extends substantially through the barrel; (c) a cutting mechanism coupled to the distal end of the barrel, which includes a movable surgical blade; (d) a trigger mechanism coupled to the cutting mechanism for releasing the movable blade; and (2) a proximal handle section coupled to the barrel and the piston rod. When the proximal handle section is compressed by a user, the piston rod retracts, and suction is created within the distal end of the barrel. When the trigger mechanism is pulled by the user, the movable blade moves from an open, ready position to a closed position, and the tissue sample is excised.
Claims16
A surgical instrument for biopsying soft body tissue, which comprises:
- (1) a distal barrel section, which comprises:
- a hollow barrel having an open, distal end and an opposite proximal end;
- a piston rod which movably extends substantially through the barrel, the piston rod having a distal end and an opposite proximal end;
- a cutting mechanism coupled to the distal end of the barrel, the cutting mechanism comprising a movable surgical blade for excising a tissue sample, and having an open, ready position and a closed position;
- a trigger mechanism coupled to the cutting mechanism for moving the movable blade;
- and
- (2) a proximal handle section coupled to the proximal ends of both the barrel and the piston rod;
- and
- wherein the proximal handle section is compressed to retract the piston rod from the distal end of the barrel creating suction within the distal end of the barrel;
- wherein the trigger mechanism is pulled to move the cutting mechanism from the open position to the closed position.
Dependencies are inferred from the claim text.