The development of a composite-type optical fiberscope system for fetoscopic laser photocoagulation of chorionic plate anastomosing vessels (FLPC).
Minim Invasive Ther Allied Technol
; 19(2): 94-9, 2010 Apr.
Article
en En
| MEDLINE
| ID: mdl-20337542
ABSTRACT
We developed a new laser device using a composite-type optical fiberscope for laser surgery to treat twin-twin transfusion syndrome. The composite-type optical fiberscope (2.2 mm in external diameter) consists of a centrally located single fiber for laser treatment (0.1 mm in diameter) and its surrounding fibers for diagnosis. This fiberscope enables transmission of 40-W Yb fiber laser. The Yb fiber laser can be focused to 10mm focal length using two lenses on the tip of the fiberscope. In this research, we emitted the laser to in vivo porcine mesenteric vessel with blood flow both with an established laser fiber of 0.6-mm diameter (0.6-mm normal fiber) and with our composite-type optical fiberscope to compare the cautery performance of those devices. According to the experimental results, the composite-type optical fiberscope has a cautery efficiency equal to that of a 0.6-mm normal fiber, and it can contract the vein diameter about 35% as compared to the vein diameter before laser irradiation.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Coagulación con Láser
/
Transfusión Feto-Fetal
/
Fetoscopía
/
Tecnología de Fibra Óptica
Límite:
Animals
/
Pregnancy
Idioma:
En
Revista:
Minim Invasive Ther Allied Technol
Asunto de la revista:
TERAPEUTICA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Japón