| 摘要 |
Described herein are specialized endoscopic drilling devices that may be readily powered by a conventional shaver handpiece and further may be utilized to secure a soft tissue graft to a boney surface. More particularly, the devices, systems and methods of the present invention enable the efficient and minimally invasive formation of off-axis sockets and/or tunnels in boney surfaces that may then serve as a site for graft placement by aperture and/or suspensory fixation means. As such, the present invention has particular applicability to the surgical repair and reconstruction of torn or ruptured tissues, such as ligaments and tendons, in the leg, knee and shoulder, for example. |
| 主权项 |
1. An endoscopic surgical assembly comprising:
a. an elongate tubular outer member having a distal end configured to receive a bushing element, and a proximal end having a first proximal hub assembly mounted thereto, wherein said first proximal hub assembly is configured for removable mounting to an endoscopic shaver handpiece, b. an elongate inner member having a distal element, an elongate middle element, a proximal portion and a second proximal hub assembly configured to transfer torque received from an endoscopic shaver handpiece to said elongate middle member, wherein said distal element includes a distal portion configured to drill a hole, further wherein said distal portion comprises a proximal facing planar surface, and an elongate cylindrical proximal portion extending therefrom, wherein said elongate cylindrical proximal portion has a proximal end configured for attachment to said elongate middle element, and c. a bushing element mounted to the distal end of said elongate tubular outer member, said bushing element having a cannulation configured to slidably receive said proximal portion of said distal element of said inner member, and planar proximal-most and distal-most surfaces;wherein said elongate inner member is rotatably positioned within said elongate tubular outer member, said elongate cylindrical proximal portion of said distal element of said elongate inner member being rotatably positioned within said cannulation of said bushing element, and further wherein proximal motion of said inner member relative to said outer member is prevented by cooperative interaction of said proximal planar surface of said distal portion of said distal element of said inner member and said planar distal-most surface of said bushing element. |
