Tissue retrieval system

摘要

The tissue retrieval system deploys a tissue bag at the surgical site. The bag is supported by the system as tissue is placed within the bag and is closed to isolate the collected tissue and allow the bag and collected tissue to be removed from the body. The bag can be reopened and re-closed as desired through use of a guide bead and cord. The bead also facilitates removal of the collected tissue.

主权项

1. A tissue retrieval apparatus comprising:
an actuator; a tissue bag having an open end and a closed end, the open end of the tissue bag connected to the actuator; a cord attached along a periphery of the open end of the tissue bag and to the actuator; a guide bead secured to the tissue bag, the guide bead slidable on the cord in a first direction to close the open end of the tissue bag and in a second direction opposite the first direction to reopen the open end of the tissue bag from a closed state, the guide bead comprising:
an elongate substantially cylindrical body defining a longitudinal axis;a cord engagement bore extending longitudinally through the cylindrical body, the bore sized to frictionally engage the cord; anda slot extending longitudinally through the cylindrical body, the slot positioned adjacent the bore, a portion of the actuator extendable through the slot; and an introducer tube; wherein a portion of the actuator, the tissue bag, the cord, and the guide bead are positionable within the introducer tube in a stowed configuration, wherein the actuator is slidable with respect to the introducer tube to advance the guide bead and the tissue bag to a deployed position outside the introducer tube, and wherein the guide bead is prevented from reentering the introducer tube from the deployed position.