On the tensioning body (2) there is at least one tensioning element (2.1).

The invention is preferably comprised of a cuff, one or more compression members, brake frame, brake pad, primary tension member, second tension member, and third tension member.

The top of each reduction gear (26) has a tension part (T) provided with a tension nut (40).

The tensioning mechanism includes an elongated body (79) having a bore (80) within which a tensioning element (86) is disposed.

Energy is attenuated by transmissions among an air tight plate member, a tension member and a spacer, and amplitude of the tension member and space holding member.

An elongate tensioning member (42) extends through the channel of the articulation section.

The piston member is coupled to a seat belt tensioning element.

The invention relates to a chain tensioning device for means of traction, specially chains, comprising an element for tensioning means of traction, specially a clamping chuck (1).

A drive element is associated with and engages the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct.

In one embodiment, the device can include a tensioning element extending through a channel formed along a length of the device and the tensioning element can translate an articulation force to the working end of the device.

The retention assembly is biased to its upstanding position by an elasticised tensioner (22).

A tension element is disposed for movement within the elongated member.

A tension element (32) is disposed for movement within the elongated member.

Optionally, an additional safety device (17) which is independent from the trigger device is associated with the tensioning element and used to selectively lock the tensioning element (15) in a tensioned position.

A basal anchor is disposed at the first end of the tension member and a secondary anchor at the second end.