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Proceedings Paper

Precision dispensing of small volumes of albumin solder for laser-assisted wound closure
Author(s): Brian S. Sorg; Karen M. McNally-Heintzelman; Eric K. Chan; Christopher J. Frederickson; Ashley J. Welch
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Paper Abstract

Recent laser-tissue soldering work in our lab has demonstrated the feasibility of building a solder bond from individually coagulated small droplets using a precision pipette for the deposition of the solder droplets. This method of using small, precise volumes of solder to build a bond may result in stronger and more reproducible bonds than coagulating an equivalent large volume of solder all at once. We have investigated the technique further in this study. The solder was dispensed onto the intimal side of a bovine aorta substrate and irradiated with an 808nm diode laser. A bond was created across an incision in the tissue substrate by alternately dispensing and coagulating each small volume of solder, or by coagulating a single large equivalent volume. Acute strength analysis was performed on the solder bond. Future work will concentrate on testing a bench-top solder dispensing device and investigating the feasibility of turning the deice into a prototype tool for clinical applications.

Paper Details

Date Published: 22 June 1999
PDF: 9 pages
Proc. SPIE 3590, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems IX, (22 June 1999); doi: 10.1117/12.350950
Show Author Affiliations
Brian S. Sorg, Univ. of Texas/Austin (United States)
Karen M. McNally-Heintzelman, Univ. of Texas/Austin (United States)
Eric K. Chan, Indigo Medical, Inc. (United States)
Christopher J. Frederickson, MicroFab Technologies, Inc. (United States)
Ashley J. Welch, Univ. of Texas/Austin (United States)


Published in SPIE Proceedings Vol. 3590:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems IX
Kenton W. Gregory; R. Rox Anderson; David S. Robinson; Reza S. Malek; Lou Reinisch; Darryl J. Bornhop; Kenneth Eugene Bartels; Hans-Dieter Reidenbach; Lloyd P. Tate; C. Gaelyn Garrett; Eugene A. Trowers; Aaron P. Perlmutter; Kenneth Eugene Bartels; Lawrence S. Bass; Darryl J. Bornhop; C. Gaelyn Garrett; Kenton W. Gregory; Nikiforos Kollias; Harvey Lui; Reza S. Malek; Aaron P. Perlmutter; Hans-Dieter Reidenbach; Lou Reinisch; David S. Robinson; Lloyd P. Tate; Eugene A. Trowers, Editor(s)

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