FOREHEAD SENSOR PLACEMENT
First Claim
1. A method of determining a physiological parameter using a pulse oximeter, comprising:
- placing an oximetry sensor comprising an arcuate substrate having an emitter and a detector on a lower forehead region of a patient, such that the emitter and the detector are placed about a line centered over the iris such that the emitter or the detector is on one side of the iris and that the other of the emitter or the detector is on the other side of the iris; and
operating the pulse oximeter to obtain the physiological parameter.
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Accused Products
Abstract
Forehead oximetry sensor devices and methods for determining physiological parameters using forehead oximetry sensors. One method includes placing an oximetry sensor on the forehead of a patient, such that the sensor is placed on the lower forehead region, above the eyebrow with the sensor optics placed lateral of the iris and proximal the temple; and operating the pulse oximeter to obtain the physiological parameter. In one aspect, the method also includes providing and placing a headband over the oximetry sensor, or alternately, the sensor is a headband-integrated sensor. The headband has an elastic segment sized to fit around the patient'"'"'s head. The headband also includes a non-elastic segment that is smaller than and attached with the elastic segment. The non-elastic segment is sized to span a portion of the elastic segment when the elastic segment is stretched. In addition, the non-elastic segment is larger than the portion of the elastic segment it spans when the elastic segment is not stretched. When the headband or the headband-integrated sensor is sufficiently tight, it delivers a pressure in the range higher than the venous pressure and lower than the capillary pressure to the forehead of the patient.
108 Citations
20 Claims
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1. A method of determining a physiological parameter using a pulse oximeter, comprising:
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placing an oximetry sensor comprising an arcuate substrate having an emitter and a detector on a lower forehead region of a patient, such that the emitter and the detector are placed about a line centered over the iris such that the emitter or the detector is on one side of the iris and that the other of the emitter or the detector is on the other side of the iris; and operating the pulse oximeter to obtain the physiological parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a monitor configured to determine a physiological parameter based at least in part upon a signal related to the physiological parameter; and a sensor coupled to the monitor and capable of generating the signal related to the physiological parameter, the sensor comprising; a substrate being adapted to fit over a portion of a forehead of a patient, wherein the substrate is arcuate when placed flat upon a planar surface in the absence of any restraining force; an emitter and a detector disposed on the substrate; and a headband configured to hold the substrate against the patient'"'"'s forehead, the headband sized to fit around the patient'"'"'s head. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification