RESUMEN
To improve enucleation of uterine myomas, we designed a reusable 5-mm laparoscopic drill with a distal forked pin and locking system. Because the device is jointed, it can apply traction not only along its own axis, but also along planes, depending on its bending radius. We compared enucleation time for myomas 5 to 8 cm in size before and after introduction of the drill. The last 23 procedures performed with this instrument were easier, with a reduction in operating time of about 28.5% for the enucleation part of the procedure (p <0.001). (J Am Assoc Gynecol Laparosc 6(2):189-193, 1999)
Asunto(s)
Hemostáticos/administración & dosificación , Laparoscopios , Leiomioma/cirugía , Ornipresina/administración & dosificación , Neoplasias Uterinas/cirugía , Adulto , Análisis de Varianza , Animales , Diseño de Equipo , Seguridad de Equipos , Femenino , Estudios de Seguimiento , Humanos , Inyecciones Intralesiones , Laparoscopía/métodos , Leiomioma/diagnóstico , Persona de Mediana Edad , Probabilidad , Resultado del Tratamiento , Neoplasias Uterinas/diagnósticoRESUMEN
Frequency-domain fluorometry relies on the measurement of the phase and amplitudes of the Fourier components of the time-dependent fluorescence signal. Experimental results that show that a conventional photomultiplier is subject to intensity-dependent phase shifts are presented. The measurements indicate that this is a problem well below the maximum linear current of the photomultiplier response. These results have important implications in frequency-domain fluorescence anisotropy experiments, in which the parallel and the perpendicular components of the emission intensity are inherently different from one another: a phase shift can be introduced by the photomultiplier.