System and method for the automatic evaluation of the indexes of volemic status
US6585658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2001 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Jun 10, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/30
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention refers to a system and a method for the automatic evaluation of the indexes of volemic status (Systolic Pressure Variation or SPV) in patients submitted to mechanic ventilation, starting form the analysis of the variations of the values of blood pressure.In one embodiment the system for the automatic evaluation of indexes of volemic status of a patient comprises: elements suitable for submitting said patient to a preset period of apnoea and to a preset period of mechanical breathing; heart pressure probes for acquiring an analogical signal relative to the values of the blood pressure of said patient in said preset periods; an analogue/digital converter for the conversion of said analogical signals into a digital signal; system for determining the values of positive systolic peaks of said pressure; element for determining a first average value of the positive systolic peaks of said pressure in said preset period of apnoea; element for determining a second average value of the maximum positive systolic peaks of said pressure in said preset period of mechanical breathing; element for determining a third average value of the minimum positive systolic peaks of said…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.