Precimed S.a.

Andr&eacute; L&eacute;chot

Patrick Michael White

Ezzedine Mahmoud

Pierre-David Bourgeois

According to the invention, a torque-transmitting assembly is described. A female coupling member defines a shape with a tapered bore. A radially flexible sleeve member has a wall with a tapered exterior surface, received within the bore, and an inner surface defining a through-bore. An elongated shaft member made of super-elastic alloy has an outer surface that is received within the through-bore. Relative motion among at least two of the members causes the inner surface to contact the outer surface, inducing a super-elastic activation in the shaft, simultaneously securing the members together in a fixed relative position. The radially flexible sleeve member has a plurality of collet fingers, which preferably contact the shaft at discrete locations. It is further preferred that the super-elastic activation in the shaft occurs as a result of the discrete contact thereby changing the cross-sectional shape of the shaft, which is generally non-circular, e.g., polygonal, in a further preferred form. A surgical device, e.g., a flexible reamer, is descibed as incorporating the present assembly.

Growing community of inventors

Orvin, Switzerland

André Léchot

Growing community of inventors

Orvin, Switzerland

Andr&eacute; L&eacute;chot

André Léchot