Abstract: The present invention provides a biological glass fiber for regenerative medical materials, comprising a biological glass or a biologically-inert glass made of a glass chemical composition. The glass chemical composition comprises in weight percentage, 5 to 25 wt% Na2O, 45 to 67 wt% SiO2, 15 to 25 wt% CaO, 2 to 6 wt% P2O5, 1 to 8 wt% MgO, 8 to 12.5 wt% K2O, 0.1 to 5 wt% total combined of non-toxic elements found in Group 5 and non-toxic elements found in Transition Metal Groups 3B, 4B and 5B, based on 100 wt% of the glass chemical composition; wherein the biological glass fiber forms a fiber configuration. The biological glass fiber is a soluble, resorbable, light transmittable and controllable absorption time regenerative material, and the biological glass fiber can mediate: therapeutic lymphangiogenesis, stem cell regeneration, bone cell regeneration and neurovascular regeneration, or it can be used as a cell carrier.

Abstract: A series of improved electron multipliers is shown which are capable of reducing the number of bombardments per unit area. In the preferred embodiment, the inner channel is significantly increased in surface area over that surface area of present-day multipliers. Because the surface area is increased, for the same charge throughout, the number of electron bombardments per unit area is decreased. Since the number of bombardments per unit area is reduced, there is less degradation on the inner surface of the channel and hence the device lifetime is also increased.

Abstract: A segmented electron multiplier is disclosed with front and rear sections. The sections are specially designed so that the length of the rear section compared to the length of the front section is no less than 4:1. This permits multiple replacements of the rear section, after the multiplier wears out, without any unsatisfactory drop in the overall electrical gain produced by the repaired device. In the preferred embodiment, the front portion is a funnel having a tubular stem, and the rear portion is a straight tube with a cylindrical helical inner channel. The length-to-length split is 5:1, which theoretically permits up to six or seven replacements of the rear section before unsatisfactory gain occurs.

Abstract: A compact, portable, clinical instrument dedicated to hemoglobin determination employs an L.E.D. light source with a peak output wavelength of about 553 nanometers and a yellow-blocking filter with a long wavelength cut-off not longer than about 565 nanometers. Thus, the relative amount of energy incident upon the blood sample in the 540 nm. hemoglobin absorption band is maximized. In addition to the L.E.D., the photodetector and the amplifying, inverting, log conversion, digital conversion, display and power supply regulation circuits are also exclusively solid-state. The display is of the reflective or liquid crystal type, and the power supply regulator is a sophisticated integrated circuit containing the equivalent of many discrete components. As a result, current consumption is minimized, and battery life and instrument accuracy are maximized. As an alternative illumination source, an infra-red L.E.D. can be employed, and the instrument is then capable of blood turbidity measurement.