Surgery – Instruments – Light application
Patent
1997-10-22
2000-05-02
O'Connor, Cary
Surgery
Instruments
Light application
606 9, 606 3, 600573, A61N 500
Patent
active
060567384
ABSTRACT:
The present invention provides an improved method of measuring analytes in bodily fluids without the use of a sharp. The method having the steps of irradiating the skin of a patient by focused pulses of electromagnetic energy emitted by a laser. By proper selection of wavelength, energy fluence, pulse temporal width and irradiation spot size, the pulses precisely irradiate the skin to a selectable depth, without causing clinically relevant damage to healthy portions of the skin. After irradiation, interstitial fluid is collected into a container or left on the skin. The interstitial fluid is then tested for a desired analyte to approximate the analyte concentration in other bodily fluids. Alternatively, after the forced formation of a microblister, the epidermis covering the microblister is lysed and the interstitial fluid is subsequently collected and tested.
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Flock Stephen T.
Marchitto Kevin S.
Astorino Michael
O'Connor Cary
Transmedica International, Inc.
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