Abstract: A disposable two-step endoscope for examining human organs includes an image capturing and transmission device and a cable that may be disconnected. The image capturing and transmission device includes a body, luminous devices, an optical image capturing device, a wireless transmission device and an internal power supply. The cable transmits the electric power outside and signals. The luminous device projects light on the human organs. The optical image capturing device captures organ images. The wireless transmission device transmits the organ images outside the human body. The internal power supply provides electric power for signal transmission after the cable and the image capturing and transmission device are separated.

Abstract: A method for improving high-viscosity thick film photoresist coating in UV LIGA process is provided. Two photoresists of identical material but different solvent amount are coated on a silicon wafer in different ways to improve film thickness and flatness. The thick film photoresist SU8-2035 and SU8-2100 from MicroChem Corp. have a viscosity of 7000 (cSt) and 45000 (cSt), respectively. First, SU8-2035 is coated on the wafer at a constant speed, then SU8-2100 is coated from an edge to a center of the wafer in a spiral way, while the mass is measured to control the thickness of photoresist. In the soft baking step, the photoresist and wafer are heated on a hot plate. When the temperature rises over the glass transition temperature of the photoresist, the photoresist spreads on the wafer uniformly due to lower viscosity, cohesion and surface tension, while the wafer is rotated to improve the flatness of the photoresist.

Abstract: A micro-separator for separating red blood cells from blood serum in a blood sample is provided. The main mechanism driving the separation of the blood sample is centrifugal force. With physical mechanisms including surface tension and functional microstructures, the red blood cells and the blood serum in a small volume of blood (about 25 micro-liters) are separated. The entire micro-separation apparatus is disposed on a disk-shaped structure. The micro-separator can integrate with other micro-devices such as micro-mixers, micro-distributors or micro-reactors to form a fully functional apparatus. Combining the rotary driver of a CD player and an optical inspection device with a signal processing system, an inexpensive, fully automatic, parallel-processing inspection system is produced.

Abstract: A disposable two-step endoscope for examining human organs includes an image capturing and transmission device and a cable that may be disconnected. The image capturing and transmission device includes a body, luminous devices, an optical image capturing device, a wireless transmission device and an internal power supply. The cable transmits the electric power outside and signals. The luminous device projects light on the human organs. The optical image capturing device captures organ images. The wireless transmission device transmits the organ images outside the human body. The internal power supply provides electric power for signal transmission after the cable and the image capturing and transmission device are separated.