Patents by Inventor Richard D. Heath

Richard D. Heath has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Medical device, its preparation and use
    Patent number: 4688562
    Abstract: A device for the prophylaxis of pressure sores which comprises a liquid retained within a flexible elastomeric envelope is described. The body contacting surface of the device is a film which has a moisture vapor transmission rate of greater than 300 g/m.sup.2 /24 hr at 37.degree. C. at 100% to 10% relative humidity difference. The liquid is a viscous liquid which absorbs moisture vapor. The device is formed in the shape of the letter "U" which makes the device particularly useful for application to the sacrum. A device in which the liquid retained within the flexible envelope is a mixture of a viscous liquid and a hygroscopic material is also described.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: August 25, 1987
    Assignee: Smith and Nephew Associated Companies, p.l.c.
    Inventors: Ian A. Buchan, Richard D. Heath