Title:
PULSE DETECTION METHOD AND APPARATUS USING PATIENT IMPEDANCE
Document Type and Number:
WIPO Patent Application WO2003049803
Kind Code:
A3
Abstract:
The presence of a cardiac pulse in a patient is determined by evaluating fluctuations in an electrical signal that represents a measurement of the patient's transthoracic impedance. Impedance signal data obtained from the patient is analyzed for a feature indicative of the presence of a cardiac pulse. Whether a cardiac pulse is present in the patient is determined based on the feature in the impedance signal data. Electrocardiogram (ECG) data may also be obtained in time coordination with the impedance signal data. Various applications for the pulse detection of the invention include detection of PEA and prompting PEA-specific therapy, prompting defibrillation therapy and/or CPR, and prompting rescue breathing depending on detection of respiration.
Inventors:
STICKNEY RONALD E
TAYLOR JAMES W
O'HEARN PATRICIA
JAYNE CYNTHIA P
LANK PAULA
HAMPTON DAVID R
TAYLOR JAMES W
O'HEARN PATRICIA
JAYNE CYNTHIA P
LANK PAULA
HAMPTON DAVID R
Application Number:
PCT/US2002/039240
Publication Date:
September 16, 2004
Filing Date:
December 06, 2002
Export Citation:
Assignee:
MEDTRONIC PHYSIO CONTROL MFG (US)
International Classes:
A61B5/0245; A61B5/08; A61B5/363; A61B5/366; A61N1/37; A61N1/39; A61N1/365; (IPC1-7): A61B5/00
Foreign References:
| US5776071A | 1998-07-07 | |||
| US4562843A | 1986-01-07 | |||
| US4951679A | 1990-08-28 | |||
| US5404877A | 1995-04-11 |
Other References:
See also references of EP 1478429A4
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