Abstract: A system for moving a portion of a patient's body including a housing having a first cavity extending along a longitudinal axis, a first distraction rod having a proximal end and a distal end, the first distraction rod and the housing being telescopically displaceable with respect to each other along the longitudinal axis, the first distraction rod having a cavity extending along the longitudinal axis, a second distraction rod having a proximal end and a distal end and configured to be telescopically displaceable from within the second cavity along the longitudinal axis, and a drive system configured to move the first distraction rod in relation to the housing and to move the second distraction rod in relation to the first distraction rod.

Abstract: A skill improvement racket for use when playing a game of Table Tennis features a linear handle. The racket features a planar, circular blade having a blade first side with a blade first side area. The blade features a blade upper edge, an opposing blade lower edge, a blade first edge, an opposing blade second edge, and a blade midline axis. The blade lower edge is located on a handle first end. The racket features a first color circle with a first color circle area. The first color circle is located on the blade first side adjacent to the blade first edge and proximal to the blade upper edge. The first color circle is a contrasting color with respect to a blade first side color located on the blade first side.

Abstract: A Ping Pong table return system for player to practice alone with personalized settings, the system comprising a Ping Pong table, a net, a returning board disposed along or near a first edge of the Ping Pong table, a L-shaped bracket with a firm arm slidably attached along the side edge of the Ping Pong table, a side support bracket pivotably to adjust the pivot angle between returning board and the top surface plane of Ping Pong table according to user's preference. The second arm of the L-shaped bracket is also functioned as a base support bracket for the returning board. The returning board is made from wood, metal, metal alloy or a combination thereof and optionally coated with a rubber material similar to Ping Pong racket. The system can be set up flexibly according to the user's skill and preference, thus greatly enhance the self-playing fun.