Design of two different configurations of a passive pressure regulating shunt valve for glaucoma filtration surgery

Michael R. Wild, R. M.V. Pidaparti, Louis B. Cantor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two different configurations of a silastic based passive pressure regulating shunt valve for glaucoma filtration surgery are currently being evaluated for incorporation into Molteno type implants. Configuration # 1 utilizes a Molteno implant fitted with a silastic O-ring at its periphery. Configuration # 2 utilizes a Molteno implant fitted with a silastic disk within the central dome of the device. Pressure threshold data were obtained via mechanical transducers and visual techniques, respectively. Comparison was made with respect to threshold pressure, repeatability of data and frequency of leakage after assembly. Preliminary results have shown configuration # 1 to be capable of obtaining threshold pressures of 15 mm of Hg. Threshold pressure was found to be nearly independent of durometer value and directly proportional to the distance between inlet and outlet orifices.

Original languageEnglish (US)
Title of host publicationAdvances in Bioengineering
EditorsJohn M. Tarbell
PublisherPubl by ASME
Pages487-490
Number of pages4
ISBN (Print)0791810313
StatePublished - Dec 1 1993
EventProceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA
Duration: Nov 28 1993Dec 3 1993

Publication series

NameAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Volume26

Other

OtherProceedings of the 1993 ASME Winter Annual Meeting
CityNew Orleans, LA, USA
Period11/28/9312/3/93

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Design of two different configurations of a passive pressure regulating shunt valve for glaucoma filtration surgery'. Together they form a unique fingerprint.

Cite this