Proximal-End Securement of a Minimally Invasive Working Channel

摘要

The present invention is directed at minimally invasive systems in which the proximal end portion of the working channel has either zero or a limited range of movement in the lateral direction. A first embodiment has a slidable collar attached to a pair of flanges, wherein movement of the collar is bounded by an annular frame. A second embodiment has a substantially spherical element attached to the tube. A third embodiment has a plurality of caps. A fourth embodiment is adapted for a larger working channel.

主权项

1. An apparatus comprising:
a) an arm having a proximal end portion connected to a stationary object and a distal end portion, b) a medial-lateral bar connected to the distal end portion of the arm and having a first rail; c) a cranial-caudal bar having:
i) a first rail in slidable engagement with the first rail of the medial-lateral bar in a first direction andii) a second rail extending substantially perpendicularly from the first rail of the cranial-caudal bar; d) a working channel construct comprising:
i) a tube having an outer surface and a proximal end portion, andii) a slider attached to the outer surface of the tube and having a first rail in slidable engagement with the second rail of the cranial-caudal bar.