Back to results
US 2001/0011157 A1Published application
Enhanced interstitial fluid collection
AssigneeInteg, Inc.
InventorsScott T. Latterell, Paul D. Brinda, Michael E. Hilgers, Michael J. Shoup, Thomas B. Hoegh, Brian J. Erickson
Life of this patent
Estimating the term…
Abstract
A sampling apparatus for interstitial fluid includes a pressure ring surrounding a collection needle. The pressure ring and needle are movable relative to one another for the ring to first engage a patient's skin surface prior to insertion of the needle.
Claims10
A sampler for collecting interstitial fluid from a skin layer, said sampler comprising:
- a sampling needle having an axis and a distal end;
- a first pressure surface at least partially surrounding said needle in spaced relation thereto;
- said needle and said first pressure surface movable relative to one another along a path of travel generally parallel to said axis with said needle and said first pressure surface having an extended position and a retracted position;
- said extended position characterized by said distal end of said needle extending beyond said first pressure surface;
- said retracted position characterized by said distal end of said needle recessed behind said first pressure surface;
- first biasing means for biasing said needle and said first pressure surface to said retracted position.
3 more elements
Dependencies are inferred from the claim text.