A tracheoesophageal puncture voice prosthesis
Department of Mechanical Engineering
Master of Science
Kristol, David S.
Pawel, Hans E.
A voice prosthesis was developed that allows verbal communication of laryngectomised patients. The prosthesis requires a superiorly directed tracheoesophageal puncture in which the periscope mounted on the tracheal stoma vent is introduced. The prosthesis is operated by air injection through the periscope. Air injection is achieved by pulmonary pressure after the occlusion of the stoma vent. Stoma vent occlusion can be achieved either by the patient's finger or by the designed cover valve mounted on the prosthesis. The cover valve allows free breathing, hand-free prosthesis use, and it can release excess pressure during coughing. Periscope valve air resistance tests have been performed. The side valve used in the designed voice prosthesis demonstrates lower resistance compared to the duckbill valve in both bench and in vivo tests within the range of flows required for ordinary speech. In addition, tests have been developed that allow objective in vivo resistance measurement for other types of voice prosthesis.
njit-etd1986-003 (53 pages ~ 1,440 KB pdf)
|Download by Chapters:||
Front Matter (Title Page, Abstract, Table of Contents, etc. ~ 10 pages ~ 253 KB pdf)
Chapter I: Introduction (3 pages ~ 140 KB pdf)
Chapter II: Part A - The Voice Prosthesis Design & Part B: Summary of Clinical Experience (6 pages ~ 301 KB pdf)
Chapter III: Testing Apparatus and Procedures (5 pages ~ 242 KB pdf)
Chapter IV: Discussion of Results (8 pages ~ 283 KB pdf)
Chapter V: Conclusions (2 pages ~ 81 KB pdf)
Appendix A: Tables of Results (5 pages ~ 85 KB pdf)
Appendix B: Figures and Curves (18 pages ~ 257 KB pdf)
Appendix C: Test Equipment (3 pages ~ 54 KB pdf)
Selected Bibliography (2 pages ~ 65 KB pdf)
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Created May 15, 2001