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Aspects of silicone rubber as an encapsulant for neurological prostheses

Part 1 Osmosis

  • Biomedical Engineering
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Abstract

Silicone rubber is not, at first sight, a promising material with which to encapsulate a piece of implantable microelectronics expected to last ten or twenty years. It is well known to be very permeable to water. In fact, if correctly applied, it performs very well for ten years, possibly longer. The paper considers the part player by osmosis in achieving satisfactory performance combined with simple technology.

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References

  • Arkles, B. andRedinger, R. (1983) Silicones in biomedical applications. InBiocompatible polymers.Szycher, M. (Ed), Technomic Publishing, Lancaster, Pennsylvania, USA, Chap. 32.

    Google Scholar 

  • Barrie, J. A. andMachin, D. (1969) The sorption and diffusion of water in silicone rubbers.J. Macromol. Sci.-Phys.,B3, (4), 673–694.

    Google Scholar 

  • Boretos, J. W. (1979) Polymers for implantable telemetry devices. In Implantable transducers and systems; packaging methods and testing criteria. Stanford Electronics Laboratories Report, June 1979, p. 4.

  • Devanathan, D. andCarr, R. (1980) Polymeric conformal coatings for implantable electronic devices.Trans. IEEE,BME-27, 672–674.

    Google Scholar 

  • Donaldson, P. E. K. (1973) Experimental visual prosthesis.Proc. IEE,120, 281–298.

    Google Scholar 

  • Donaldson, P. E. K. (1982) The underwater life of joints between some adherend and adhesive materials useful in neurological prosthesis-making. InBiological polymers. BES/PRI Conf., Durham, July 1982, BES, 143–150.

  • Glasstone, S. (1940)Textbook of physical chemistry. Macmillan.

  • Heitler, C. (1958)Analyst,83, 223–229.

    Article  Google Scholar 

  • Traeger, R. (1977) Non-hermeticity of polymeric lid sealants.IEEE Trans.,PHP-13, 147–152.

    Google Scholar 

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Donaldson, P.E.K. Aspects of silicone rubber as an encapsulant for neurological prostheses. Med. Biol. Eng. Comput. 29, 34–39 (1991). https://doi.org/10.1007/BF02446293

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  • DOI: https://doi.org/10.1007/BF02446293

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