Patents by Inventor Renzo Gervasio

Renzo Gervasio 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).

  • Blood purifying equipment particularly for the treatment of patients suffering from renal insufficiency, and a method of producing a reinfusion liquid for haemodiafiltration (HDF)
    Patent number: 5194157
    Abstract: Blood to be purified is passed through a haemofiltration element and a haemodialysis element in cascade and the ultrafiltrate output from the haemofiltration element is passed through a filter such as an activated carbon filter, preferably with uncoated activated carbon. The ultrafiltrate thus purified can then be used as a reinfusion solution to be readministered to the patient.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: March 16, 1993
    Assignee: Sorin Biomedica Emodialisi SRL
    Inventors: Paolo Ghezzi, Renzo Gervasio
  • Dialysis apparatus
    Patent number: 4306972
    Abstract: Dialysis apparatus is provided of the type comprising a casing housing a central cylindrical core which is surrounded by a plurality of layers of capillary tubes constituted by hollow, semi-permeable, fibres. Blood to be treated is caused to flow through the capillary tubes while dialysing solution is passed over the outer surfaces of the tubes. To facilitate the construction of dialysis apparatus with different dialysing surface areas without altering the dimensions of the casing or core, the core is arranged to dismountably carry a plurality of spacing annuli around which the layers of capillary tubes are wound. The diameter of the annuli determines how many layers of capillary tubes can be accommodated in the casing.
    Type: Grant
    Filed: October 16, 1980
    Date of Patent: December 22, 1981
    Assignee: Sorin Biomedica S.p.A.
    Inventors: Ennio Denti, Giuseppe T. A. Freda, Renzo Gervasio, Sergio Graglia