U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Two-phase composites of ionically-conductive pressure-sensitive adhesive, biomedical electrodes using the composites, and methods of preparing the composite and the biomedical electrodes

Patent 5338490 Issued on August 16, 1994. Estimated Expiration Date: Icon_subject August 31, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Re24906

Bio-medical electrode conductive gel pads
Patent #: 3998215
Issued on: 12/21/1976
Inventor: Anderson ,   et al.

Biomedical electrode
Patent #: 4273135
Issued on: 06/16/1981
Inventor: Larimore ,   et al.

Water absorptive composition
Patent #: 4300820
Issued on: 11/17/1981
Inventor: Shah

Sterile improved bandage containing a medicament
Patent #: 4307717
Issued on: 12/29/1981
Inventor: Hymes ,   et al.

Pressure-sensitive adhesive
Patent #: 4337325
Issued on: 06/29/1982
Inventor: Shah

Biomedical electrode
Patent #: 4352359
Issued on: 10/05/1982
Inventor: Larimore ,   et al.

Article of manufacture having adhesive properties
Patent #: 4356819
Issued on: 11/02/1982
Inventor: Potaczek

Skin barrier
Patent #: 4367732
Issued on: 01/11/1983
Inventor: Poulsen ,   et al.

Composite hydrogel-forming article and method of making same
Patent #: 4369229
Issued on: 01/18/1983
Inventor: Shah

More ...

Inventors

Application

No. 114971 filed on 08/31/1993

US Classes:

252/500, ELECTRICALLY CONDUCTIVE OR EMISSIVE COMPOSITIONS424/448, Pressure sensitive adhesive means524/56, Disaccharide or trisaccharide, e.g., sucrose, etc.524/394, Oxygen atom or metal atom DNRM, e.g., metal stearate, etc.524/401, Inorganic compound devoid of a silicon atom DNRM524/516, Solid polymer derived from nitrogen heterocycle monomer525/57, With solid polymer derived from ethylenic reactants only525/195, Contains a metal atom525/205Heterocyclic reactant is an imide or lactam

Examiners

Primary: Skaling, Linda D.
Assistant: Tierney, Michael P.

Attorney, Agent or Firm

Foreign Patent References

  • 0058485 EP 08/13/1982
  • 0066887 EP. 12/13/1982
  • 0308572 EP 03/13/1989
  • 0322098 EP 06/13/1989
  • WO89/00771 WO 01/13/1989
  • WO90/11719 WO 10/13/1990
  • WO91/09633 WO 07/13/1991
  • 2008000 GB. 05/13/1979

International Classes

A61F 013/02
C08J 003/00
C08K 005/15
C08L 005/00

Abstract

A two-phase composite of ionically-conductive pressure-sensitive adhesive, biomedical electrodes using the composite and methods of preparing the composite and the electrode are disclosed. The continuous phase is a hydrophilic, solid state pressure-sensitive adhesive composition ionically-conductive regardless of an amount of water present in the composition. The discontinuous phase are domains of a hydrophobic pressure-sensitive adhesive which enhances adhesion of the composite to mammalian skin while maintaining acceptable alternating current impedance of the composite.

Other References

  • Errede, "Molecular Interpretations of Sorption in Polymers Part I", Advances in Polymer Science, vol. 99, Springer-Verlag, Berlin Heidelberg Germany (pp. 22-36, 1991
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