Patent Number: 6,295,330

Title: Device for repeated registration of the number of thermal cycles to which a part for medical usage has been subjected

Abstract: A device for repeated registration of the number of thermal cycles to which a part for medical usage has been subjected has a temperature-sensitive element and/or a pressure-sensitive element arranged in conjunction with the part. This element reversibly changes its physical shape with temperature and/or pressure, variations in pressure being invariably associated with changes in temperature. A registration unit registers this change in shape when it exceeds a specific threshold value, as an indication of the part undergoing, or having undergone, a thermal cycle.

Inventors: Skog; Goran (Bromma, SE), Krahbichler; Erik (Straubing, DE), Slettenmark; Bruno (Jarfalla, SE)

Assignee: Siemens-Elema AB

International Classification: A61L 2/26 (20060101); A61L 2/28 (20060101); G07C 003/00 ()

Expiration Date: 09/25/2018