Surgical tissue retrieval instrument
AssigneeAnchor Products Company
InventorsJames Taylor, Robert H. Thrun
Life of this patent
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Abstract
A surgical tissue retrieval instrument has a collapsible pouch at the distal end of an elongated pusher rod that is introduced into a patient's abdomen through a cannula. The instrument includes a two-jaw fork that forms a loop when in an unconstrained configuration and that supports the pouch. Deployment and operation of the fork and the pouch are controlled by a toggle means. The two jaws and the toggle means are slid in a hem surrounding the opening of the pouch when the device is assembled. An especially advantageous embodiment features two jaws of unequal length.
Claims21
A tissue retrieving device comprising:
- a) a sleeve having a proximal end and a distal end, said distal end adapted for insertion in a cannula;
- b) a rod in slidable and rotatable communication with said sleeve, said rod having a distal end supporting a post rotating around a pivot and laterally biased jaws and a proximal end comprising a handle to manipulate the rod;
- c) a pouch in slidable communication with the jaws and the post;
- wherein said jaws and post is a means for deployment and control of repeated opening and closing of said pouch when said rod is in a predetermined alignment with said sleeve;
- and
- d) a channel adapted to simultaneously receive a drawstring and said jaws;
- wherein said post rotates in a plane perpendicular to a plane containing said jaws.
A device for removing tissue from a patient's body, the device comprising:
- a) a sleeve having a proximal end and a distal end, said distal end adapted for insertion in a cannula;
- b) a pusher rod in slidable communication with said sleeve, the rod having a proximal end terminating in a handle and a distal end terminating in laterally biased jaws;
- c) a toggle mechanism adapted for insertion in a sleeve, said toggle mechanism comprising a U-shape substrate with the open end of the U-shaped substrate pivoting around a pivot point mounted to the rod intermediate the proximal end and the distal end, such that the toggle swings from a first spring loaded position to a second resting position;
- d) a pouch in slidable communication with the jaws and toggle;
- wherein the toggle allows disengagement of the pouch from the jaws when in the second resting position.
Dependencies are inferred from the claim text.