Patent ID: 6190394
Filing Date: 2001-02-20
Classification: A61B

Abstract:
A medical retrieval basket for extracting an object from a body comprising:a cage having a longitudinal axis and an expandable portion consisting of a plurality of flexible elements which are outwardly disposed to form a space for entrapping said object,a tubular means for the collapsing of said flexible elements when withdrawn into said tubular means,an actuation means to enable the movement of said flexible elements into and out of said tubular means and to enable rotation of said cage,the impivement wherein the flexible elements, when outwardly disposed, include a plurality of flexible elements, forming a plural set, which are spaced relatively closely to each other and spaced relatively far from adjacent flexible elements outside of the plural set, the flexible elements, when outwardly disposed, also including a single flexible element spaced relatively far from adjacent flexible elements, wherein there are a plurality of plural sets and at least one single flexible element spaced around said longitudinal axis, whereby rotation of said actuation means will cause rotation of said cage in order to present either a single flexible element or a said plural set to the object being removed.