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Application of Double Constant Current Source Design in Single-Port Gasless Laparoscopic Surgical Instrument

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Abstract:

Single-port gasless laparoscopic surgical instrument (SPGLSI) is a national patented product in minimally invasive surgery filed. The key problems of it are that the luminophor is short of use-life and the illumination of it is often not enough when lighted by the shadowless cold light. In this paper, we first take qualitative and quantitative analysis of the luminophor designed by the conventional method. Then, a novel design method that use double constant current source (DCCS) to light the SPGLSI is proposed. Several tests have shown a much better lighting effeteness for the luminophor has been achieved using the proposed design method.

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Periodical:

Applied Mechanics and Materials (Volumes 182-183)

Pages:

1519-1523

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.182-183.1519

Citation:

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Online since:

June 2012

Authors:

Bo Xiang, Jun Sun, Ping Zhou, Xiu Ying Wang

Keywords:

Double Constant Current Source (DCCS), Illumination, Luminophor, Single-Port Gasless Laparoscopic Surgical Instrument (SPGLSI)

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Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Y. S. Du: lifting shadowless cold light retractor, Chinese Patent: ZL2005201133740, 2007-2-14.

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[3] GB50034-2004, Designing standard for building lighting.

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