Rapid small volume detection of blood ammonia
First Claim
1. A method for measuring ammonia in a blood sample, the method comprising:
- positioning the blood sample in a sealed chamber that surrounds at least part of an anode end of an ammonia fuel cell, so the anode end is exposed to ammonia gas released from the blood sample;
generating a current with the ammonia fuel cell in response to the ammonia gas released from the blood sample; and
measuring the current generated by the ammonia fuel cell, using a current measurement member coupled with the ammonia fuel cell.
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Abstract
A method for measuring ammonia in a blood sample may involve positioning the blood sample in proximity with an ammonia gas sensor, generating a current with the ammonia gas sensor in response to ammonia gas released from the blood sample, and measuring the current generated by the ammonia gas sensor, using a current measurement member coupled with the ammonia gas sensor. A device for measuring an ammonia level in a blood sample may include a blood sample containment member, an ammonia gas sensor coupled with the blood sample containment member, and a current measurement member coupled with the ammonia gas sensor. The method and device may be used to measure an ammonia level in a blood sample as small as one drop of blood, or approximately 0.05 mL of blood.
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Citations
32 Claims
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1. A method for measuring ammonia in a blood sample, the method comprising:
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positioning the blood sample in a sealed chamber that surrounds at least part of an anode end of an ammonia fuel cell, so the anode end is exposed to ammonia gas released from the blood sample; generating a current with the ammonia fuel cell in response to the ammonia gas released from the blood sample; and measuring the current generated by the ammonia fuel cell, using a current measurement member coupled with the ammonia fuel cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device for measuring an ammonia level in a blood sample, the device comprising:
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a blood sample containment member comprising a compartment for holding the blood sample; an ammonia gas sensor coupled with the blood sample containment member, wherein the compartment forms a sealed chamber when the blood sample containment member is coupled with the ammonia gas sensor, and wherein the sealed chamber encloses an anode end of the ammonia gas sensor and the blood sample; and a current measurement member coupled with the ammonia gas sensor. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification