07258673 is referenced by 214 patents and cites 87 patents.

An interstitial fluid (ISF) extraction device includes a penetration member configured for penetrating a target site of a user's skin layer and, subsequently, residing in the user's skin layer and extracting an ISF sample therefrom and at least three concentrically-arranged pressure rings, each adapted for applying pressure to the user's skin layer in the vicinity of the target site while the penetration member is residing in the user's skin layer. In addition, the ISF extraction device is configured such that (i) the pressure rings apply pressure in an oscillating manner with asymmetric deployment and retraction cycles and (ii) only one of the at least three concentrically-arranged pressure rings is deployed at a time, thereby mitigating an ISF glucose lag of the ISF sample extracted by the penetration member.

Title
Devices, systems and methods for extracting bodily fluid and monitoring an analyte therein
Application Number
10/653023
Publication Number
7258673 (B2)
Application Date
August 28, 2003
Publication Date
August 21, 2007
Inventor
Cass A Hanson
St. Paul
MN, US
Joel Mechelke
Stillwater
MN, US
Thomas Rademacher
St. Paul
MN, US
Phil Stout
Roseville
MN, US
Michael Hilgers
Lake Elmo
MN, US
Joel Racchini
Edina
MN, US
Assignee
Lifescan
CA, US
IPC
A61B 17/32
A61B 17/14
A61B 5/00
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