GRASPER WITH MAGNETICALLY-CONTROLLED POSITIONING

摘要

Described here are devices, systems, and methods for providing remote traction to tissue. Generally, the systems may comprise a grasper and a delivery device configured to releasably couple to the grasper. The grasper may have a first jaw and a second jaw and a main body having a barrel portion. The barrel portion may have a lumen extending therethrough, and a portion of the delivery device may be advanced through the lumen to rotate one or both of the jaws. The delivery devices may include a handle, a shaft, and a distal engagement portion. The delivery devices may further include an actuation rod which may be advanced through a barrel portion of a grasper to actuate the grasper. In some instances, the delivery device may further comprise a locking sheath, wherein the locking sheath is configured to temporarily couple to a grasper.

主权项

1. A device for grasping tissue comprising:
a main body comprising a barrel portion having a lumen extending therethrough; a first jaw rotatably coupled to the main body; a second jaw; and a proximal arm extending from the first jaw, wherein at least a portion of the proximal arm is exposed from the main body, wherein the device is configured such that a force applied to the exposed portion of the proximal arm and the main body rotates the first jaw relative to the second jaw, and wherein the device is configured such that advancement of an actuation rod through the lumen of the barrel portion rotates the first jaw relative to the second jaw.