Patent ID: 8720963

Claim:
An apparatus for extracting an object from a cavity, the apparatus comprising: a collet comprising a first end, an axially opposite second end, a collar at the first end of the collet, and a shaft at the second end of the collet, the collar comprising a plurality of fingers extending from a first end of the collar to the second end of the collar, and the shaft comprising a threaded portion and a first groove extending through a portion of the length of the threaded portion of the shaft; a sleeve comprising a first end surrounding a portion of the collar, and an axially opposite second end surrounding a portion of the shaft; a handle comprising a first end, an axially opposite second end proximate to the second end of the sleeve, and a bore surrounding a portion of the second end of the sleeve; a first protrusion extending from the handle into the first groove of the shaft; and a nut proximate to the second end of the handle and comprising a threaded bore engaging with the threaded portion of the shaft, wherein, when the nut is rotated, the collet advances in a first axial direction expanding the fingers of the collar as the collar advances out of the sleeve to surround a portion of the object or the collet advances in a second axial direction contracting the fingers of the collar as the collar advances into the sleeve to grasp a portion of the object.