A device for iontophoretic anaesthesia of the tympanic membrane

M. W. M. Bridger The Departments of E.N.T. Surgery and Clinical Measurement, The Middlesex Hospital, Mortimer Street, London WIN 8AA

Malcolm Keene The Departments of E.N.T. Surgery and Clinical Measurement, The Middlesex Hospital, Mortimer Street, London WIN 8AA

J. M. Graham The Departments of E.N.T. Surgery and Clinical Measurement, The Middlesex Hospital, Mortimer Street, London WIN 8AA

Richard Healey The Departments of E.N.T. Surgery and Clinical Measurement, The Middlesex Hospital, Mortimer Street, London WIN 8AA

M. M. Ammar The Departments of E.N.T. Surgery and Clinical Measurement, The Middlesex Hospital, Mortimer Street, London WIN 8AA

Abstract

The design and construction of a new solid state device for anaesthetizing the tympanic membrane by iontophoresis is described. In a pilot survey the performance of the device was completely satisfactory in 35 out of 36 patients. Emphasis is given to details of design and practical technique which are important if complications are to be avoided.

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A device for iontophoretic anaesthesia of the tympanic membrane

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A device for iontophoretic anaesthesia of the tympanic membrane

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