Apparatus for monitoring a level of a chemical species in a body fluid
March 3, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3461036 Method of predicting and detecting ovulation RE30267 Non-invasive diagnosis method Cutaneous methods of measuring body substances Sweat collection patch Dermal substance collection method Transdermal detection system Method of preparing a fluid absorbent quantitative test device Multilayer analysis film for analyzing transaminase InventorsAssigneeApplicationNo. 033767 filed on 03/03/1998US Classes:422/58, In holder or container having special form422/61, Test package or kit436/166, Including reagent preparation436/174, INCLUDING SAMPLE PREPARATION436/811, TEST FOR NAMED DISEASE, BODY CONDITION OR ORGAN FUNCTION600/309, Measuring or detecting nonradioactive constituent of body liquid by means placed against or in body throughout test600/346, Sweat analysis600/362Absorbent patch for fluid analysisExaminersPrimary: Alexander, Lyle A.Attorney, Agent or FirmForeign Patent References
International ClassG01N 033/48AbstractAn apparatus for monitoring a level of a chemical species in a body fluid includes a fluid collection layer adapted for receiving the body fluid. The fluid collection layer is dry prior to being brought into contact with the body fluid. A catalyst is provided in, on, or near the fluid collection layer so as to be in contact with the body fluid in the fluid collection layer. The catalyst facilitates a reaction of the chemical species in the body fluid. An indicator, responsive to the reaction of the chemical species, is also provided in, on, or near the fluid collection layer. A characteristic of the indicator changes in response to the reaction of the chemical species, thereby indicating the level of the chemical species in the body fluid. This apparatus can be used, for example, to monitor the level of lactate in perspiration during activities, such as exercise or other athletic exertions.Other References
Field of SearchWith reagent in absorbent or bibulous substrateTEST FOR NAMED DISEASE, BODY CONDITION OR ORGAN FUNCTION INCLUDING SAMPLE PREPARATION Including reagent preparation Liberation or purification of sample or separation of material from a sample (e.g., filtering, centrifuging, etc.) Having reagent in absorbent or bibulous substrate In holder or container having special form Test package or kit Measurement of skin parameters Measuring or detecting nonradioactive constituent of body liquid by means placed against or in body throughout test Sweat analysis Absorbent patch for fluid analysis |
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