Deformation Behaviour of Voice Prostheses — Sensitivity of Mechanical Test Methods

Abstract

Polymer materials are of importance as substitute materials in medicine because their individual properties are specifically adjustable. Their compatibility with the biological system (biocompatibility) and the functionality and stability of the materials used are decisive factors for medical practice, especially for the purposes of implants. The materials commonly used in medicine include PET (textile vascular prostheses), PTFE, PUR (vascular replacements, blood pumps, cardiac valves), polyolefines such as PP or PE (threads, joint replacement), silicone elastomers (prostheses in the ear, nose and throat field, and special orthopaedic items) and polyamide. Pharyngo-tracheal valve prostheses, also referred to as voice prostheses, are used for the rehabilitation of patients who have had their larynx completely removed.