Patent · US Active

Illuminated infusion cannula

US7783346B2 · kind B2 · utility

56Cited by

7References

24Claims

0Family size

Assignee

ALCON INC. · CH

Inventors

Ronald T. Smith · Irvine, US
Jack R. Auld · Laguna Niguel, US
Christopher McCollam · Irvine, US
Dean Y. Lin · Chino Hills, US
Dyson Hickingbotham · Stouchsburg, US

Key dates

Filing date	Dec 18, 2006
Grant date	Aug 24, 2010
Priority date	—
Expiry date	Aug 8, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2210/0612
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A transparent illuminated infusion cannula is provided for illuminating an area during eye surgery. An optical fiber may be spaced a certain distance away from the cannula such that fluid flow around the distal end of the fiber and into the transparent cannula may occur with a much higher flow rate than what had previously been possible. The fiber cannula airspace may be optimized so that the cross-sectional area of the fluid conduit remains substantially constant in order to achieve a best compromise between high light transmittance and high fluid flow rate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.