Accumulative small droplet laser soldering

Eric K. Chan, Ashley J. Welch, Elaine L. Shay, Thomas Springer, Christopher Frederickson, Massoud Motamedi

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

5 Citations (Scopus)

Abstract

We conducted in vitro laser fusion experiments of bovine aorta using successive accumulation of solder droplets. The solder was composed of serum albumin, sodium hyaluronate and Indocyanine Green dye. After depositing 0.2 μL of the solder onto an aorta incision with a micro-pipette, we used a diode laser at 808 nm with fixed energy parameters to coagulate the solder droplet. A solder strip was formed from 10 droplets photocoagulated to increase the solder-tissue contact area and coagulum volume. Repair of aorta incision was achieved with both a single solder strip and double solder strips. For half of the welded specimens, tensile measurement was performed immediately following solder experiments. Tensile strength was measured in the rest of the specimens after soaking in saline for 24 hours. Scanning electron microscopy was performed on selected specimens. The average ultimate tensile strengths for the single strip group were 261 N/cm 2 for acute, and 81 N/cm 2 after 1 day of saline immersion. The average ultimate tensile strengths for the double strip group were 253 N/cm 2 for acute, and 77 N/cm 2 after soaking in saline for 1 day. We also measured native aorta ultimate tensile strength, which was 76 N/cm 2. This study demonstrated the feasibility of using micro droplets of solder to increase tensile strength.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsR.R. Anderson, K.E. Bartels, L.S. Bass, C.G. Garrett
Pages268-275
Number of pages8
Volume3245
DOIs
StatePublished - 1997
Externally publishedYes
EventLasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII - San Jose, CA, United States
Duration: Jan 24 1998Jan 25 1998

Other

OtherLasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII
CountryUnited States
CitySan Jose, CA
Period1/24/981/25/98

Fingerprint

soldering
Soldering
solders
Soldering alloys
Lasers
aorta
tensile strength
lasers
strip
Tensile strength
soaking
pipettes
Laser fusion
laser fusion
albumins
serums
Contacts (fluid mechanics)
submerging
Semiconductor lasers
Repair

Keywords

  • Aorta
  • Microjet
  • Photocoagulation
  • Solder
  • Tensile strength
  • Tissue welding

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Chan, E. K., Welch, A. J., Shay, E. L., Springer, T., Frederickson, C., & Motamedi, M. (1997). Accumulative small droplet laser soldering. In R. R. Anderson, K. E. Bartels, L. S. Bass, & C. G. Garrett (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3245, pp. 268-275) https://doi.org/10.1117/12.312297

Accumulative small droplet laser soldering. / Chan, Eric K.; Welch, Ashley J.; Shay, Elaine L.; Springer, Thomas; Frederickson, Christopher; Motamedi, Massoud.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / R.R. Anderson; K.E. Bartels; L.S. Bass; C.G. Garrett. Vol. 3245 1997. p. 268-275.

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

Chan, EK, Welch, AJ, Shay, EL, Springer, T, Frederickson, C & Motamedi, M 1997, Accumulative small droplet laser soldering. in RR Anderson, KE Bartels, LS Bass & CG Garrett (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 3245, pp. 268-275, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII, San Jose, CA, United States, 1/24/98. https://doi.org/10.1117/12.312297
Chan EK, Welch AJ, Shay EL, Springer T, Frederickson C, Motamedi M. Accumulative small droplet laser soldering. In Anderson RR, Bartels KE, Bass LS, Garrett CG, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3245. 1997. p. 268-275 https://doi.org/10.1117/12.312297
Chan, Eric K. ; Welch, Ashley J. ; Shay, Elaine L. ; Springer, Thomas ; Frederickson, Christopher ; Motamedi, Massoud. / Accumulative small droplet laser soldering. Proceedings of SPIE - The International Society for Optical Engineering. editor / R.R. Anderson ; K.E. Bartels ; L.S. Bass ; C.G. Garrett. Vol. 3245 1997. pp. 268-275
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