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Title: Implantable medical sensor system

Abstract

An implantable chemical sensor system for medical applications is described which permits selective recognition of an analyte using an expandable biocompatible sensor, such as a polymer, that undergoes a dimensional change in the presence of the analyte. The expandable polymer is incorporated into an electronic circuit component that changes its properties (e.g., frequency) when the polymer changes dimension. As the circuit changes its characteristics, an external interrogator transmits a signal transdermally to the transducer, and the concentration of the analyte is determined from the measured changes in the circuit. This invention may be used for minimally invasive monitoring of blood glucose levels in diabetic patients.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. (Pleasanton, CA)
  2. (Modesto, CA)
  3. (Oakland, CA)
  4. (Walnut Creek, CA)
  5. (Berkeley, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
873608
Patent Number(s):
6201980
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
implantable; medical; sensor; chemical; applications; described; permits; selective; recognition; analyte; expandable; biocompatible; polymer; undergoes; dimensional; change; presence; incorporated; electronic; circuit; component; changes; properties; frequency; dimension; characteristics; external; interrogator; transmits; signal; transdermally; transducer; concentration; determined; measured; minimally; invasive; monitoring; blood; glucose; levels; diabetic; patients; blood glucose; circuit component; chemical sensor; electronic circuit; medical applications; permits selective; minimally invasive; dimensional change; medical sensor; /600/

Citation Formats

Darrow, Christopher B., Satcher, Jr., Joe H., Lane, Stephen M., Lee, Abraham P., and Wang, Amy W. Implantable medical sensor system. United States: N. p., 2001. Web.
Darrow, Christopher B., Satcher, Jr., Joe H., Lane, Stephen M., Lee, Abraham P., & Wang, Amy W. Implantable medical sensor system. United States.
Darrow, Christopher B., Satcher, Jr., Joe H., Lane, Stephen M., Lee, Abraham P., and Wang, Amy W. Mon . "Implantable medical sensor system". United States. https://www.osti.gov/servlets/purl/873608.
@article{osti_873608,
title = {Implantable medical sensor system},
author = {Darrow, Christopher B. and Satcher, Jr., Joe H. and Lane, Stephen M. and Lee, Abraham P. and Wang, Amy W.},
abstractNote = {An implantable chemical sensor system for medical applications is described which permits selective recognition of an analyte using an expandable biocompatible sensor, such as a polymer, that undergoes a dimensional change in the presence of the analyte. The expandable polymer is incorporated into an electronic circuit component that changes its properties (e.g., frequency) when the polymer changes dimension. As the circuit changes its characteristics, an external interrogator transmits a signal transdermally to the transducer, and the concentration of the analyte is determined from the measured changes in the circuit. This invention may be used for minimally invasive monitoring of blood glucose levels in diabetic patients.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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