Noninvasive detection of a physiologic Parameter within a body tissue of a patient
First Claim
1. A device for contacting a surface of a tissue within a patient'"'"'s body to determine a physiologic parameter of the patient, comprising:
- a means for preventing application of excessive pressure to the tissue at a measurement region in the tissue upon contact with the device to allow for substantially undisturbed blood flow in the tissue; and
a sensor responsive to the physiologic parameter, wherein the sensor is located within a sensing area adjacent to the measurement region.
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Accused Products
Abstract
The invention provides a device for contacting a surface of a tissue within a patient'"'"'s body to determine a physiologic parameter of the patient. The device typically comprises a sensor responsive to the physiologic parameter and a probe housing the sensor. The probe is constructed to allow the sensor to be secured at a sensing area adjacent to a surface of a patient'"'"'s tissue, without need for an adhesive and without disturbing the blood flow within the measurement region of the tissue. The device may also include a means for reducing interference in the sensing area. Preferably, the device further comprises an indicating means operably connected to the sensor for indicating an analyte quantity and/or concentration associated with the physiologic parameter. The invention also provides a method for determining a physiologic of a patient.
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Citations
82 Claims
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1. A device for contacting a surface of a tissue within a patient'"'"'s body to determine a physiologic parameter of the patient, comprising:
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a means for preventing application of excessive pressure to the tissue at a measurement region in the tissue upon contact with the device to allow for substantially undisturbed blood flow in the tissue; and
a sensor responsive to the physiologic parameter, wherein the sensor is located within a sensing area adjacent to the measurement region. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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3. The device of clam 2, wherein the means for reducing interference is adapted to reduce interference from electromagnetic radiation.
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49. A device for contacting a surface of a tissue within the patient'"'"'s body to determine a physiologic parameter of the patient, comprising:
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a means for reducing interference in a sensing area adjacent to a measurement region in the tissue, wherein the means represents an integral portion of a probe; and
a sensor responsive to the physiologic parameter, wherein the sensor is located within the sensing area and within the probe. - View Dependent Claims (50, 51, 52)
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53. A device for contacting a surface of a tissue within a patient'"'"'s body to determine a physiologic parameter of the patient, comprising:
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a sensor responsive to the physiologic parameter; and
a probe containing the sensor, wherein the probe is constructed to allow the sensor to be secured at a sensing area adjacent to a measurement region in the tissue without relying solely on an adhesive and without substantially disturbing blood flow within the tissue. - View Dependent Claims (54, 55)
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56. A method for determining a physiologic parameter of a patient, the method comprising the steps of:
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(a) providing a sensor responsive to the physiologic parameter of a patient;
(b) placing the sensor within a sensing area adjacent to a surface of a measurement region of the patient'"'"'s body tissue without substantially disturbing blood flow within the tissue; and
(c) detecting the response of the sensor to the physiologic parameter. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78)
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79. A method for determining a physiologic parameter of a patient, the method comprising the steps of:
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(a) providing a sensor responsive to the physiologic parameter of the patient;
(b) placing the sensor in a sensing area adjacent to the surface of the patient'"'"'s tissue at a measurement region; and
(c) detecting the response of the sensor to the physiologic parameter while preventing interfering fluid ingress into the sensing area. - View Dependent Claims (80, 81, 82)
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Specification