Trocar device

摘要

A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, at least one of the rotatable cutter and the first driver being disposed in a bore of the cannula. In one embodiment, the rotatable cutter may include an auger having a cutting thread. In another embodiment, the rotatable cutter may include a disk-shaped blade.

主权项

1. A surgical device, comprising:
a cannula defining a longitudinal axis, the cannula including a bore therethrough; an external auger disposed within the bore of the cannula, the external auger including a bore therethrough; an internal auger disposed within the bore of the external auger, the internal auger including a bore therethrough, wherein the external auger and the internal auger each includes at least one of a sharp cutting thread or cutting teeth; and at least one driver drivable by a motor arrangement, the at least one driver configured to rotate and axially translate at least one of the cannula, the external auger, or the internal auger, wherein a distal tip of the external auger is disposed distal of the bore of the cannula.