An apparatus for withdrawing a tissue specimen being held by a grasping instrument through an endoscope includes an endoscope having an endoscopic shaft with proximal and distal ends and a lumen extending therebetween. The apparatus also includes first and second hoop-like support members which are selectively slideable within the lumen from a first position to at least one second position. Each of the hoop members includes a diameter which is variable from a first diameter to at least one different diameter. The apparatus also includes a pouch having first and second ends which attach to respective first and second hoop members. The pouch defines a container therein for retaining the tissue specimen. A pair of drawstrings are attached to the first and second ends of the pouch, respectively, and are remotely operable to close the ends about the tissue specimen.

 
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> Variable indication estimator

> Resectoscope

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