Penn Jillette of Penn and Teller fame has patented a "Hydro-Therapeutic Stimulator", which uses a hot tub for stimulation.
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| Number | Title | Issue Date |
| 7628411 | Height adjustable rolling walker for transportation seating A walker device for assisting an individual with mobility which is temporarily convertible to a wheeled transportation chair, includes a frame structure having two front legs and two rear legs, each of the legs having a leg extension adjustably attached thereto and ... | 12/08/2009 |
| 7014204 | Rocking wheelchair A rocking wheelchair is provided with multiple adjustable features to meet various needs of different users with respect to safety, comfortableness and user/caregiver convenience. The rocking wheelchair includes an adjustable maximum rocking motion setting for users... | 03/21/2006 |