Abstract: A lockable joint such as a lockable ball-and-socket joint comprising a first arm having a swivel head and a socket, the swivel head being pivotably mounted to the socket, and a locking device arranged for locking the swivel head with respect to the socket, the locking device having a piston, a pressure gas source, and an actuating device arranged for reversibly disconnecting the piston from the pressure gas source where in the pressure gas source is a gas cartridge. A seal suitable at a wide range of temperatures and pressures can be used with at least the pressure gas source.

Abstract: A lockable joint such as a lockable ball-and-socket joint comprising a first arm having a swivel head and a socket, the swivel head being pivotably mounted to the socket, and a locking device arranged for locking the swivel head with respect to the socket, the locking device having a piston, a pressure gas source, and an actuating device arranged for reversibly disconnecting the piston from the pressure gas source where in the pressure gas source is a gas cartridge. A seal suitable at a wide range of temperatures and pressures can be used with at least the pressure gas source.

Abstract: A surgical retractor fixing device including a clamp body arranged for removably fixing the surgical retractor fixing device to a frameset that extends along a frameset longitudinal axis and that is arranged to be mounted to an operating table, a rotating body attached to the clamp body, the rotating body being pivotable around an axis of rotation, the rotating body comprising a fixing element arranged for fixing a surgical retractor, where in that the fixing element is a releasable one-way fixing element.

Abstract: A lockable joint such as a lockable ball-and-socket joint comprising a first arm (14) having a swivel head (30) and a socket (32), the swivel head (30) being pivotably mounted to the socket (32), and a locking device (90) arranged for locking the swivel head (30) with respect to the socket (32), the locking device (90) having a piston (70?), a pressure gas source (64), and an actuating device (92) arranged for reversibly disconnecting the piston (70?) from the pressure gas source (64) where in the pressure gas source is a gas cartridge (64).

Abstract: The invention relates to a surgical retractor fixing device, comprising: (a) a clamp body (16) arranged for removably fixing the surgical retractor fixing device (10) to a frameset (93) that extends along a frameset longitudinal axis (L) and that is arranged to be mounted to an operating table, (b) a rotating body (14) attached to the clamp body (16), (c) the rotating body (14) being pivotable around an axis of rotation (A), (d) the rotating body (14) comprising a fixing element (32) arranged for fixing a surgical retractor (12) where in that the fixing element is a releasable one-way fixing element (32).