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US 7,014,615 B2Granted
Interstitial fluid collection and constituent measurement
AssigneeInteg, Inc.
InventorsBrian J. Erickson, Michael E. Hilgers, Tracy A. Hendrickson, J. Edward Shapland, Frank A. Solomon, Mark B. Knudson
Life of this patent
Estimating the term…
Abstract
An apparatus and method is disclosed for obtaining and measuring constituents in a sample of body fluid. The apparatus includes a member which is sized to penetrate into at least the dermal layer of skin to collect a sample of body fluid located within the dermal layer.
Claims13
A method for testing a sample of body fluid, comprising:
- forming an artificial opening into a patient's skin but not through a dermal layer of said skin with a penetration member, wherein said opening is sized to access a constituent-containing, substantially blood-free fluid in the skin;
- drawing a sample of said blood-free fluid into a first portion of said penetration member that is outside of said dermal layer while a second portion of said penetration member is within said dermal layer;
- and
- testing said sample for said constituent.
1 more element
A method for testing a sample of body fluid, comprising:
- inserting a penetration member into a patient's skin but not through a dermal layer of the skin wherein said penetration member is sized to access a constituent-containing, substantially blood-free fluid in the skin and wherein a first portion of said penetration member is outside of said dermal layer while a second portion of said penetration member is within said dermal layer;
- and
- testing said accessed fluid for said constituent wherein said fluid is drawn into the first portion of said penetration member prior to said testing.
Dependencies are inferred from the claim text.