Capillary flow control in a medical diagnostic device
US6488827B1 · kind B1 · utility
182Cited by
20References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/0688
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A medical diagnostic device for measuring an analyte concentration in a sample of a biological fluid includes a capillary flow channel in the device to convey the sample from an inlet to a second region. The flow channel has a capillary dimension in at least one direction. A stop junction in the flow channel has a boundary region that has a dimension that is greater in that direction and forms an angle that points toward the sample inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.