Patent ID: 8523873
Filing Date: 2013-09-03
Classification: A61B

Abstract:
1. A neural monitoring enabled insulating sleeve for use with a surgical instrument during a surgical procedure in patient body tissue, the sleeve comprising: a tubular portion that has a proximal end, a distal end, and a bore extending therethrough, the bore is configured to receive the surgical instrument, the tubular portion is formed of a material that electrically insulates the surgical instrument from the patient body tissue, the tubular portion has a head portion disposed at the proximal end, the head portion includes flexible fingers configured to flex between a locked condition such that a compressive force is applied by the flexible fingers to the surgical instrument, and an unlocked condition such that the surgical instrument is released from the flexible fingers, the tubular portion configured to freely rotate about the surgical instrument in the locked condition; an outwardly protruding nub disposed on each of the flexible fingers; and a camming collar which has an inner interface configured to engage the flexible fingers of the proximal end of the tubular portion, the inner interface is configured to cam the flexible fingers between the locked and the unlocked condition by a rotational motion of the camming collar relative to the tubular portion and includes a first camming surface and a second camming surface, the first camming surface has a larger diameter than and is recessed relative to the second camming surface, wherein the outwardly protruding nub is aligned with the first camming surface in the unlocked condition and the outwardly protruding nub is aligned and engaged with the second camming surface in the locked condition.