Methods of diagnosis using pulse volume measurement
US7485094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2003 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Jan 4, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0535
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The utility of pulse volume measurement is expanded to detection of many conditions which have previously not been detected or have been detected using more complicated techniques. Such conditions include blood loss, septic shock, cardiogenic shock, neonatal sepsis, patent ductus arteriosus, limb ischemia, intra-aortic balloon pump performance, peripheral vascular disease, congestive heart failure, the effectiveness of vasoactive medications, syncope, dehydration, pre-eclampsia, deep vein thrombosis, thermal injuries, vascular instability due to renal dialysis, compromising of circulation to the hand caused by radial artery harvesting, changes in cardiac output, and hypertension. According to the present invention, such diagnoses can be performed by taking one measurement, by taking measurements over time to detect a change or by taking measurements before and after application of a treatment or stimulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.