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Method of making biocompatible electrodes

Patent ·
OSTI ID:868322
 [1]
  1. Acton, MA
+ Show Author Affiliations

A process of improving the sensing function of biocompatible electrodes and the product so made are disclosed. The process is designed to alter the surfaces of the electrodes at their tips to provide increased surface area and therefore decreased contact resistance at the electrode-tissue interface for increased sensitivity and essentially includes rendering the tips atomically clean by exposing them to bombardment by ions of an inert gas, depositing an adhesion layer on the cleaned tips, forming a hillocked layer on the adhesion layer by increasing the temperature of the tips, and applying a biocompatible coating on the hillocked layer. The resultant biocompatible electrode is characterized by improved sensitivity, minimum voltage requirement for organ stimulation and a longer battery life for the device in which it is employed.

Research Organization:
SPIRE CORP
DOE Contract Number:
AC03-87SF17124
Assignee:
Spire Corporation (Bedford, MA)
Patent Number(s):
US 5118400
OSTI ID:
868322
Country of Publication:
United States
Language:
English

References (4)

Ion‐beam‐sputter modification of the surface morphology of biological implants journal January 1977
Hillock Reduction in Ion‐Implanted Metal journal August 1987
Mechanical properties on ion‐beam‐textured surgical implant alloys journal March 1978
Ion beam texturing of surfaces journal March 1979

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Related Subjects

/204/
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