A system for delivering an implant including a handle, a trigger, an actuation assembly, and a catheter assembly. The actuation assembly is configured to displace the outer tubular member in the proximal direction and to separately move the inner shaft member distally upon deployment of the trigger from the first position to the second position, and move the inner shaft member proximally with no displacement of the outer tubular member upon return of the trigger from the second position to the first position. The catheter assembly includes an outer tubular member, an inner shaft member, and a pusher assembly.

The enclosed invention is a new one way clutch where linear or rotary motion between two bodies is transmitted in only one direction by one or more links moving in one of the bodies and connected with the other by friction or positive engagement, the link(s) plays the role of a follower to the cam surface on the other body. The link(s) could be rigid or flexible or in combination of both, and its contact is insured by springs which could be separate or part of any of the mechanism bodies. The link(s) causes the two bodies to cease and move together in the driving direction, and to release in the opposite free movement direction. One of the two bodies can be omitted and replaced by a part of the using machine. Links and cam lubes could be used in pairs. If links reset is needed, flexible elements or additional cam-follower mechanism can be used to avoid impact. Higher forces and torques can be transmitted with minimum backlash, surface fatigue and maximum indexing rate and service life.

The invention relates to a linear actor arrangement, comprising a linear actor with two ends whose distance is variable depending on an energizing of the linear actor, wherein each end is attached to a respective first or second coupling element which engage a coupling surface, wherein the coupling surface and the coupling elements exhibit mating surface structures in such a manner that the coupling elements are prevented from moving in a direction while being allowed to move in an opposite direction.

A system for delivering an implant including a handle, a trigger, an actuation assembly, and a catheter assembly. The actuation assembly is configured to displace the outer tubular member in the proximal direction and to separately move the inner shaft member distally upon deployment of the trigger from the first position to the second position, and move the inner shaft member proximally with no displacement of the outer tubular member upon return of the trigger from the second position to the first position. The catheter assembly includes an outer tubular member, an inner shaft member, and a pusher assembly.

The invention relates to a device including: a movable element (1) comprising teeth (11; 11.sub.i, i, 11.sub.i+1, 11.sub.i+2, 11.sub.i+3, 11.sub.i+4); a driving element (2) for engaging with the teeth (11; 11.sub.i, 11.sub.i+1, 11.sub.i+2, 11.sub.i+3, 11.sub.i+4) of the movable element (1) so as to set the movable element (1) in motion in a direction of movement; an actuator element (3) capable of generating an alternating movement so as to move the driving element (2) according to at least two phases, i.e. a driving phase, during which the driving element (2) is engaged with a tooth (11; 11.sub.i, 11.sub.i+1, 11.sub.i+2, 11.sub.i+3, 11.sub.i+4) of the movable element (1), and a return phase without driving, during which the driving element (2) is shifted with respect to the movable element (1); and a first indexing element (4), which includes a first indexing finger (41) to be positioned between two teeth (11; 11.sub.i, 11.sub.i+1, 11.sub.i+2, 11.sub.i+3, 11.sub.i+4) of the movable element (1), and which is connected to the actuator element (3) in order to move the driving element (2) and the first indexing finger (41) simultaneously.

The structures described herein use an actuating system that can selectively switch between a lower and a raise mode of operation by rotating a rod assembly, and use a downward displacement of a pull member to lower and raise the window shade depending on whether its switching state. The actuating systems are simple to operate, allow convenient adjustment of the window shade, and are safe as the pull member has a limited length of extension.