Heat cycle indicating device
US6736085B1 · kind B1 · utility
109Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2202/24
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An indicating device for indicating the number of times in which a surgical fitting has been autoclaved, the device including a body which includes first and second sets of teeth and a bimetallic indexing ring having teeth thereon, the arrangement being such that on thermal expansion and contraction of the indexing ring, its teeth engage those of the body so as to rotate the ring in a step wise manner relative to the body so as to thereby indicate the number of heat cycles to which the indicating device has been subjected, the indexing ring being the only movable part of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.