Calibration vial and technique for calibrating a fiber optic oxygen sensing needle
First Claim
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1. A calibration tool for use in obtaining a zero calibration value for a fiber optic needle oxygen sensor, comprising:
- (a) an open top vial constructed from an oxygen impermeable material and defining a chamber,(b) a resealing, needle-penetrable, oxygen impermeable septa sealingly engaged over the open top of the vial,(c) an oxygen permeable sachet containing a mass of particulate oxygen getter retained within the sealed chamber, and(d) a mass of an oxygen sensitive photoluminescent dye retained within and in fluid communication with the sealed chamber.
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Abstract
A calibration tool and method of using the tool to calibrate a fiber optic needle oxygen sensor. The tool includes at least a vial sealingly covered by a septa and containing a supply of particulate oxygen getter within the chamber of the vial. The vial has an open top and is constructed from an oxygen impermeable material. The septa is resealing, needle-penetrable and oxygen impermeable. The supply of particulate oxygen getter is retained within an oxygen permeable sachet.
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Citations
21 Claims
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1. A calibration tool for use in obtaining a zero calibration value for a fiber optic needle oxygen sensor, comprising:
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(a) an open top vial constructed from an oxygen impermeable material and defining a chamber, (b) a resealing, needle-penetrable, oxygen impermeable septa sealingly engaged over the open top of the vial, (c) an oxygen permeable sachet containing a mass of particulate oxygen getter retained within the sealed chamber, and (d) a mass of an oxygen sensitive photoluminescent dye retained within and in fluid communication with the sealed chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A calibration tool for use in obtaining a zero calibration value for a fiber optic needle oxygen sensor, comprising:
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(a) an open top vial constructed from an oxygen impermeable material and defining a chamber, (b) a resealing, needle-penetrable, oxygen impermeable septa sealingly engaged over the open top of the vial, and (c) an oxygen permeable sachet containing a mass of particulate oxygen getter retained within the sealed chamber, (d) wherein the septa includes an oxygen barrier layer laminated to a layer of resealing elastomer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification