Patent · US Expired

Method for the manufacture of implantable electrodes of vitreous carbon

US4609508A · kind A · utility

5Cited by

7References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Martin Edeling · Erlangen, DE
Konrad Mund
Raghavendra Anantha Rao · Pleasanton, US
Erhard Weidlich · Spardorf, DE

Key dates

Filing date	Oct 10, 1984
Grant date	Sep 2, 1986
Priority date	—
Expiry date	Oct 10, 2004

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61N1/05
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to a method for the manufacture of implantable electrodes of vitreous carbon with an electrode head and an electrode stem, by pyrolysis of cross-linked synthetic resins. Electrodes manufactured in accordance with such a method exhibit high surface quality. In accordance with embodiments of the disclosure, the electrode stem is manufactured in the form of a blank by hardening a resin precondensate, then the electrode head is cast onto the blank in a casting mold, using a resin precondensate, and is cross-linked. Subsequently hardening takes place and then the synthetic resin is converted into vitreous carbon by pyrolysis, and the electrode obtained in this manner may, if desired, be activated to provide the electrode with a microporous surface structure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.