Selective laser vaporization of polypropylene sutures and mesh

David Burks, Sarah B. Rosenbury, Michael J. Kennelly, Nathaniel M. Fried

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

Abstract

Complications from polypropylene mesh after surgery for female stress urinary incontinence (SUI) may require tedious surgical revision and removal of mesh materials with risk of damage to healthy adjacent tissue. This study explores selective laser vaporization of polypropylene suture/mesh materials commonly used in SUI. A compact, 7 Watt, 647-nm, red diode laser was operated with a radiant exposure of 81 J/cm2, pulse duration of 100 ms, and 1.0-mm-diameter laser spot. The 647-nm wavelength was selected because its absorption by water, hemoglobin, and other major tissue chromophores is low, while polypropylene absorption is high. Laser vaporization of ~200-μm-diameter polypropylene suture/mesh strands, in contact with fresh urinary tissue samples, ex vivo, was performed. Non-contact temperature mapping of the suture/mesh samples with a thermal camera was also conducted. Photoselective vaporization of polypropylene suture and mesh using a single laser pulse was achieved with peak temperatures of 180 and 232 oC, respectively. In control (safety) studies, direct laser irradiation of tissue alone resulted in only a 1 oC temperature increase. Selective laser vaporization of polypropylene suture/mesh materials is feasible without significant thermal damage to tissue. This technique may be useful for SUI procedures requiring surgical revision.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8207
DOIs
StatePublished - 2012
EventPhotonic Therapeutics and Diagnostics VIII - San Francisco, CA, United States
Duration: Jan 21 2012Jan 24 2012

Other

OtherPhotonic Therapeutics and Diagnostics VIII
CountryUnited States
CitySan Francisco, CA
Period1/21/121/24/12

Keywords

  • Female stress urinary incontinence
  • Laser
  • Mesh
  • Polypropylene
  • Prolene
  • Sling
  • Sutures
  • Vaporization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'Selective laser vaporization of polypropylene sutures and mesh'. Together they form a unique fingerprint.

Cite this