Design and in vitro testing of a voice-producing element for laryngectomized patients

M.P. de Vries, A. van der Plaats, M. van der Torn, H.F. Mahieu, H.K. Schutte, G.J. Verkerke*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

17 Citations (Scopus)
1 Downloads (Pure)


A voice-producing element has been developed to improve speech quality after laryngectomy. The design process started with the formulation of a list of requirements. The lip principle has the best potential for fulfilling the requirements. A numerical model was made to find the optimal geometry of an element based on the lip principle. Extensive in vitro tests were performed to check all requirements. For this a test set-up with realistic acoustic and aerodynamic properties was developed. Results show that the protruding lip length dominates fundamental frequency, cross-sectional area dominates flow resistance and relation between flow and fundamental frequency. Most requirements have been fulfilled; both for males and females a potentially good functioning prototype could be selected. Clinical experiments will be performed to confirm the quality of the voice-producing prosthesis.

Original languageEnglish
Pages (from-to)462-472
Number of pages11
JournalThe International journal of artificial organs
Issue number7
Publication statusPublished - 1 Jan 2000
Externally publishedYes


  • Laryngectomy
  • Numerical model
  • Shunt valve
  • Voice prosthesis


Dive into the research topics of 'Design and in vitro testing of a voice-producing element for laryngectomized patients'. Together they form a unique fingerprint.

Cite this