The hardware design of a portable gastrointestinal wireless endoscope image receiver / 中国医疗器械杂志

The portable gastrointestinal wireless endoscope image receiver is developed and based on TMS320C6211 DSP. It can receive and demodulate the modulated signal which is transmitted from the camera-capsule, and then output the video signal. The synchronizing signals offered by SAA7114H are made best of and are used to design the time logic circuit. The fitful video signal can be collected under the control of the time logic circuit. The circuit can automatically get rid of useless blank data and only collect effective and good-quality video signals, and storage them in CF card. In addition, the image signal can be processed and compressed by DSP, and thus the data storage space and the data- analyzing time can be saved.

An image acquisition & processing system of the wireless endoscope based on DSP / 中国医疗器械杂志

This paper covers an image acquisition & processing system of the capsule-style endoscope. Images sent by the endoscope are compressed and encoded with the digital signal processor (DSP) saving data in HD into PC for analyzing and processing in the image browser workstation.

Latest progress of minimally-invasive medical systems in the field of alimentary tract diagnosis and treatment / 中国医疗器械杂志

The capsule-style micro-system is a hot spot of minimally-invasive medical instruments. Progresses of some typical capsule-style micro-systems, such as the wireless endoscope, site specific delivery capsule (SSDC), alimentary tract sampling capsule, PH capsule, etc. are introduced here in detail. The research activities in China and the developing trend of capsule-style micro-systems are discussed too.

Research on swallowable camera-capsules of gastrointestinal wireless endoscope / 中国医疗器械杂志

The swallowable camera-capsule,described in the aper, 11 mm in diameter and 30 mm in length , contains a CMOS image sensor, an optical system, a battery, a light source, a transmitter, a antenna and so on. The CMOS image sensor and its driving circuit can be miniaturized with MEMS technology. Image signal can be transmitted by analog or digital way. Image signal can be wirelessly transmitted through serial data interface. Finally, the processing technics of the capsule's crust is introduced.

Development of the chip system for measurement of red blood cell rheology / 中国医疗器械杂志

We have developed a novel silicon microchannel system for the research of the red blood cell rheology and deformation. Recurring to many kinds of information technologies and advanced test means such as the electronic microscope, the image acquisition system and the computer processing system and by using the up-to-date Micro Electro Mechanical System (MEMS) technology, a new measuring system of red bood cell deformation is designed based on the chip and a model using the silicon microchannel to simulate capillary vessel network. It provides a real-time collection and anaysis of data which include image, speed, flow parameter, and so on. It provides printing, storage of the analysis results and patients' database management.