Laser patch welding: Experimental study for application to endoscopic closure of bronchopleural fistula, a preliminary report

K. Sensaki, Tsunenori Arai, S. Tanaka

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background and Objective: Postoperative bronchopleural fistula is a serious complication following pulmonary resection. To close the bronchopleural fistula, we developed a new method of endoscopic patch welding using laser tissue welding between bronchial tissue and a patch. Study Design/Materials and Methods: The feasibility of the laser patch welding was examined by in vitro and in vivo animal experiments. A newly developed carbon monoxide (CO) laser and an Argon ion laser were evaluated. Various tissue membranes and artificial membranes were evaluated as patch materials. Results: We found that the combination of expanded polytetrafluoroethylene (e-PTFE; 200 μm in thickness) and the CO laser with contact irradiation method offered the strongest laser patch welding. Using this combination, the irradiation at 400 W/cm2 for 10 seconds resulted in 16-18 g of measured traction strength at the welding spot (2 mm in diameter). The welded e-PTFE patch at bronchial stump remained for 5 weeks. Conclusion: Our results encourage use of this novel laser patch technique for clinical applications.

Original languageEnglish
Pages (from-to)24-33
Number of pages10
JournalLasers in Surgery and Medicine
Volume16
Issue number1
DOIs
Publication statusPublished - 1995
Externally publishedYes

Fingerprint

Welding
Fistula
Lasers
Polytetrafluoroethylene
Carbon Monoxide
Artificial Membranes
Gas Lasers
Traction
Lung
Membranes

ASJC Scopus subject areas

  • Surgery

Cite this

Laser patch welding : Experimental study for application to endoscopic closure of bronchopleural fistula, a preliminary report. / Sensaki, K.; Arai, Tsunenori; Tanaka, S.

In: Lasers in Surgery and Medicine, Vol. 16, No. 1, 1995, p. 24-33.

Research output: Contribution to journalArticle

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