Ryan Moody,Charles Anthony Pell,Eric Torr Espenhahn,Hugh Charles Crenshaw
申请号：
US14065191
公开号：
US20140364890A1
申请日:
2013.10.28
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Embodiments disclosed include methods and devices for blunt dissection, which differentially disrupt a patient's soft tissues while not disrupting that patient's firm tissues. In one embodiment, a differential dissecting instrument for differentially dissecting complex tissue disclosed. The differential dissecting instrument comprises a handle, a central longitudinal axis, and an elongate member having a proximal end and a distal end. The differential dissecting instrument also comprises a differential dissecting member configured to be rotatably attached to the distal end, the differential dissecting member comprising at least one tissue engaging surface, a first torque-point, the first torque-point disposed to a first side of the axis of rotation of the differential dissecting member, and a mechanism, configured to mechanically rotate the differential dissecting member around the axis of rotation thereby causing the at least one tissue engaging surface to move in at least one direction against the complex tissue. The mechanism comprises at least one force-transmitting member possessing a distal end and a proximal end, the distal end being attached to the first torque-point member. The proximal end of the at least one force-transmitting member is attached to a motive source configured to oscillate the differential dissecting member. Further, the at least one tissue engaging surface is configured to selectively engage the complex tissue such that when the differential dissecting member is pressed by the surgeon into the patient's complex tissue, the at least one tissue engaging surface moves across the complex tissue and the at least one tissue engaging surface disrupts at least one soft tissue in the complex tissue, but does not disrupt firm tissue in the complex tissue.
