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US 2010/0168787 A1Published application
Medical device with pivotable jaws
AssigneeWilson-Cook Medical Inc.
InventorVIHAR C. SURTI
Life of this patent
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Abstract
A medical device with pivotable jaws and method of use thereof are disclosed. The device includes a pair of jaw members which are capable of being rotated independently of one another and spaced apart up to about 360°. Various gear arrangements are provided for enabling rotation of the jaws. The jaw members are disposed within a flexible slotted housing when advanced to a target tissue site, and thereafter rotated out of the housing a predetermined amount to contact target tissue.
Claims20
A medical device, comprising:
- a housing having a proximal end and distal end, the housing defining a longitudinal axis extending between the proximal and distal ends;
- a drive gear longitudinally slidable relative to the housing;
- an elongate control member having a distal end connected to the drive gear for sliding the drive gear longitudinally;
- a first elongate arm comprising a first jaw member and a first gear end, the first gear end intermeshed with the drive gear and pivotally attached to the housing;
- and
- a second elongate arm comprising a second jaw member and a second gear end, the second gear end intermeshed with the drive gear and pivotally attached to the housing, the second elongate arm disposed opposite to the first elongate arm;
- wherein the first elongate arm and the second elongate arm are pivotable between a first closed position and a second open position, the first jaw member and the second jaw member being disposed adjacent each other in the first closed position, the first jaw member and the second jaw member being spaced apart by an angle of about 360° in the second open position.
4 more elements
A medical device comprising:
- a drive gear comprising an elongated rack defining a longitudinal axis and having a longitudinal length, the drive gear further comprising a first gear surface and a second gear surface being opposed to the first gear surface;
- a plurality of first ribs laterally protruding away from the first gear surface of the elongate rack along the longitudinal length of the drive gear, wherein the plurality of first ribs define a first plurality of slots therebetween,
- a plurality of second ribs laterally protruding away from the second gear surface of the elongate rack along the longitudinal length of the drive gear, wherein the plurality of second ribs define a second plurality of slots therebetween;
- a first elongate arm comprising a first jaw member and a first gear end, the first gear end comprising a first plurality of teeth pivotally connected within the distal end of the housing at a first pivot point, wherein the first plurality of teeth are engaged with the plurality of the first slots of the drive gear;
- a second elongate arm comprising a second jaw member and a second gear end, the second gear end comprising a second plurality of teeth pivotally connected within the distal end of the housing at a second pivot point, the second plurality of teeth engaged with the plurality of the second slots of the drive gear;
- and
- a housing comprising a proximal end, a distal end, and at least one opening extending between the proximal end and the distal end, wherein the housing receives the first and the second elongate arms within the at least one opening in a fully open configuration to substantially enclose the arms.
4 more elements
A method for grasping an object comprising the steps of:
- providing a medical device comprising:
- a first elongate arm disposed within a housing and comprising a first jaw member and a first gear end, the first gear end intermeshed with a drive gear at the distal end of the housing;
- a second elongate arm disposed within the housing and comprising a second jaw member and a second gear end intermeshed with the drive gear at the distal end of the housing;
- wherein the first elongate arm and the second elongate arm are each pivotable about the first gear end and the second gear end, respectively, and further wherein each of the first elongate arm and the second elongate arm is pivotable between a fully closed configuration and a fully open configuration;
- advancing the medical device to a position adjacent the object with the first jaw member and the second jaw member in the fully open configuration substantially enclosed within the housing in a substantially parallel arrangement with the first and the second jaw members disposed proximally of the first and the second gear ends;
- pulling the drive gear in a proximal direction so as to cause engagement of the drive gear with the first gear end and the second gear end;
- rotating the first elongate arm in a clockwise direction about the first gear end from a bottom opening of the housing;
- rotating the second elongate arm in a counterclockwise direction about the second gear end from a top opening of the housing;
- and
- closing the first and the second jaw members around the object.
7 more elements
Dependencies are inferred from the claim text.