Patent ID: 7827992

Claim:
A combination of a continuous passive motion (CPM) device disposed atop a surface and an arrangement for restraining a continuous passive motion device from moving relative to the position of a user of said device, comprising: a holding member that passes around a portion of and is thereby secured to the CPM device; and an anchoring member coupled with said holding member for retaining said CPM holding member in position, said anchoring member comprising a planar sheet that is placed under the user of the device and held fast by the weight of the user such that the position of the CPM device on said surface is held substantially constant relative to the position of the user when said user is atop the planer sheet, wherein said holding member and said anchoring member are each provided with a connecting element, said connecting elements being releasably connectible to one another so as to permit releasable attachment of said holding member to said anchoring member.