ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,209, issued on April 7.
"Lumber and knee recovery device" was invented by Ali Parvizi (Tehran, Iran) and Ayat Parvizi (Tehran, Iran).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for lumbar and knee recovery may include a rotatable chassis that may be mounted on a main chassis. An upper traction assembly and a lower traction assembly may be slidably mounted on the rotatable chassis and may provide two perpendicular translational degrees of freedom and a rotational degree of freedom. A patient may be positioned within the device and a control unit may be utilized for performing lumbar and knee recovery maneuvers by urging a plurality of actu...