Surgery – Truss – Pad
Patent
1984-04-16
1986-02-18
Kamm, William E.
Surgery
Truss
Pad
A61B 505
Patent
active
045706409
ABSTRACT:
Apparatus and method for monitoring the sensory system of a patient to enable determination of the level and depth of spinal and epidural nerve blocks, including those induced by anesthetics administered to a patient, which blocks affect the sympathetic and motor nervous systems. The anesthesia level is sequentially and repeatedly scanned at a plurality of spaced points to provide a continuous determination of the extent and depth of superficial and deep sensation and sympathetic and motor integrity. The electronic apparatus includes a stimulator that provides selective stimulation to each element of a multiple element transmitting unit the elements of which are non-invasively positioned contiguous to the skin of a patient, and a physiological response detector to detect patent responses to stimulation sensed by the elements of a multiple element sensing unit the elements of which are also non-invasively positioned contiguous to the skin of the patient. A multiple display is provided to facilitate monitoring, and an indication and/or termination of stimulation signal is provided whenever stimulation exceeds a reference level. The system and method are also shown to be usable for automatically controlling delivery of an anesthesic to a patient.
REFERENCES:
patent: 3513834 (1970-05-01), Suzuki et al.
patent: 3810457 (1974-05-01), Bottcher et al.
patent: 4064870 (1977-12-01), Dumitrescu et al.
patent: 4166452 (1972-09-01), Generales, Jr.
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