gms | German Medical Science

27. Internationaler Kongress der Deutschen Ophthalmochirurgen

15. bis 17.05.2014, Nürnberg

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A new way of controlling Venturi pump flow volume in cataract surgery (K)

Meeting Abstract

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  • Makoto Kishimoto - Kishimoto Eye Clinic, Moriyama City, Japan

27. Internationaler Kongress der Deutschen Ophthalmochirurgen. Nürnberg, 15.-17.05.2014. Düsseldorf: German Medical Science GMS Publishing House; 2014. DocVI 2.2

doi: 10.3205/14doc153, urn:nbn:de:0183-14doc1532

Veröffentlicht: 5. Mai 2014

© 2014 Kishimoto.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.

Gliederung

Text

Purpose: In cataract surgery with Venturi pumps, pressure and flow volume cannot be set separately. We studied a way to control flow volume more effectively.

Methods: To decrease the flow volume of a venturi pump without reducing the aspiration pressure, it is necessary to adjust the tube diameter using a separate device which increases the resistance of the aspiration line.

The solution was a separation pipe dubbed “Pinocchio”.

Results: The tube narrows behind the separation Pipe. This allows flow volume to be controlled as low as 40 milliliters per minute even at 300 milliliters of mercury aspiration pressure.

Conclusions: An auxiliary device that can separate vitreous fragments and prevent obstruction, will allow venturi pumps to be used in a wider range of surgical operations, where they might not have been appropriate previously.