A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/2
A61M 23/00 (2006.01) A61B 5/03 (2006.01) A61M 16/10 (2006.01) A61M 25/10 (2006.01) A61N 1/05 (2006.01) A61N 1/34 (2006.01) A61M 16/04 (2006.01)
Patent
CA 1193504
- 42 - ABSTRACT PATIENT MONITORING APPARATUS A method of monitoring the depth of anaesthesia of a patient, comprising stimulating contractions in the oesophagus of the patient, for example using an inflatable oesophageal balloon, obtaining signals inductive of the oesophageal contractions using a sensor, and deriving from the signals an output indicative of the rate of occurrence of signals having a magnitude greater than a preset threshold value, and apparatus for carrying out the method. An alternative aspect comprises assigning a score value to each of a plurality of different bodily functions of a patient, for example heart rate, blood pressure, degree of sweating, and formation of tears, the said score values being indicative of a depth of anaesthesia or sedation, summing the score values, and producing an output from the summed score values indicative of the amount of anaesthetic to be fed to the patient.
388712
Evans John M.
Wise Colin C.
Antec Systems Limited
Stewart Michael I.
LandOfFree
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