Endoscopic urological biopsy forceps
First Claim
1. A biopsy forceps surgical instrument comprising:
- a) a hollow tube having a proximal and a distal end;
b) a control member having a proximal and a distal end and extending through said hollow tube;
c) an actuator coupled to said proximal end of said tube and said proximal end of said control member for imparting translational movement to said control member relative to said hollow tube;
d) a stationary jaw coupled to said distal end of said tube, said stationary jaw having a longitudinal axis and a pin substantially perpendicular to said longitudinal axis; and
e) a scooping movable jaw having an arcuate slot through which said pin extends, such that said movable jaw is pivotally coupled to said stationary jaw, said movable jaw being coupled to said distal end of said control member so that translational movement of said control member causes both translational and rotational movement of said movable jaw relative to said stationary jaw such that said movable jaw scoops a biopsy sample into said stationary jaw.
1 Assignment
0 Petitions
Accused Products
Abstract
An endoscopic urological biopsy forceps includes a hollow tube member with a control member extending therethrough, an actuator coupled to the proximal ends of the tube member and the control member and a jaw assembly coupled to the distal ends of the tube and control member. The jaw assembly includes a stationary jaw with an axle pin, and a movable jaw with an arcuate slot through which the axle pin extends such that the movable jaw is coupled to the stationary jaw and is movable both translationally and rotationally relative to the stationary jaw. The stationary jaw has a basket-like opening and part of the movable jaw fits inside the opening. The movable jaw has a pair of sidewalls each of which define a row of cutting teeth and a distal buck tooth which is arranged substantially perpendicular to the side walls and is angled toward the proximal end of the movable jaw. When the jaws are closed, the cutting teeth of the movable jaw are received in the opening if the stationary jaw and the buck tooth resides outside and adjacent the distal end of the stationary jaw. The movable jaw is preferably provided with a gouged interior defining a roof palate making additional room for the capture and storage of biopsy samples. The basket-like opening in the stationary jaw is preferably provided with bottom openings for fluid drainage and to accommodate larger and plural biopsy samples.
91 Citations
19 Claims
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1. A biopsy forceps surgical instrument comprising:
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a) a hollow tube having a proximal and a distal end; b) a control member having a proximal and a distal end and extending through said hollow tube; c) an actuator coupled to said proximal end of said tube and said proximal end of said control member for imparting translational movement to said control member relative to said hollow tube; d) a stationary jaw coupled to said distal end of said tube, said stationary jaw having a longitudinal axis and a pin substantially perpendicular to said longitudinal axis; and e) a scooping movable jaw having an arcuate slot through which said pin extends, such that said movable jaw is pivotally coupled to said stationary jaw, said movable jaw being coupled to said distal end of said control member so that translational movement of said control member causes both translational and rotational movement of said movable jaw relative to said stationary jaw such that said movable jaw scoops a biopsy sample into said stationary jaw. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A biopsy forceps surgical instrument comprising:
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a) a hollow tube having a proximal and a distal end; b) a control member having a proximal and a distal end and extending through said hollow tube; c) an actuator coupled to said proximal end of said tube and said proximal end of said control member for imparting translational movement to said control member relative to said hollow tube; d) a stationary jaw coupled to said distal end of said tube, said stationary jaw having a pair of sidewalls defining an upper opening; and e) a movable jaw rotationally coupled to said stationary jaw, said movable jaw having a pair of sidewalls defining two rows of cutting teeth and a distal wall defining a single cutting tooth which is substantially perpendicular to said sidewalls of said movable jaw, wherein said movable jaw and said stationary jaw are arranged such that when said movable jaw is in a closed position relative to said stationary jaw, said two rows of cutting teeth are located inside said stationary jaw and said single cutting tooth is located outside and adjacent to the distal end of said stationary jaw. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A biopsy forceps surgical instrument comprising:
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a) a hollow tube having a proximal and a distal end; b) a control member having a proximal and a distal end and extending through said hollow tube; c) an actuator coupled to said proximal end of said tube and said proximal end of said control member for imparting translational movement to said control member relative to said hollow tube; d) a stationary jaw coupled to said distal end of said tube, said stationary jaw having a pair of sidewalls defining an upper opening and a bottom portion having a plurality of drainage openings; and e) a movable jaw rotationally coupled to said stationary jaw and to said distal end of said control member, said movable jaw having a pair of sidewalls defining two rows of cutting teeth, a gouged interior defining a roof palate, and a distal tooth having a free end which is angled in a proximal direction when the movable jaw is in a closed position relative to the stationary jaw. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification