1.The system design of an intraperitoneal perfusion machine for hyperthermic chemotherapy based on single chip microcomputer.
Zhiyong ZHANG ; Xuandong YANG ; Kaiyang LI
Journal of Biomedical Engineering 2005;22(3):580-583
A new kind of method for intraperitoneal hyperthermic chemotherapy has been proved to be very effective for the therapy of gastrointestinal cancer. In this article is reported an intraperitoneal perfusion machine which is designed for instituting the treatment. The liquor of the chemotherapy drug is infused into the abdomen after being heated by heating system; the liquor flows out of the abdomen is abandoned. The temperature of heating and the velocity of flow are controlled by MCU, thus the temperature of the liquor of the chemotherapy drug in the abdomen can be adjusted to the most favarable temperature.
Abdominal Cavity
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Antineoplastic Agents
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administration & dosage
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Gastrointestinal Neoplasms
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drug therapy
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Hot Temperature
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Humans
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Microcomputers
2.Development and validation of near-infrared brain blood-oxygen monitor.
Zhao QIN ; Kaiyang LI ; Xuandong YANG ; Lijun LIU ; Zeping XIE
Journal of Biomedical Engineering 2007;24(6):1220-1223
The main purpose of this paper is to describe the design and development of the near-infrared blood-oxygen monitor which is based on the theory of detecting the blood-oxygen parameters of tissue by near-infrared, and the monitor can detect the blood-oxygen parameters of two sides of the local brain tissue. The monitor uses two wavelength ultra-high light LED as lamp-house, and two sensors detect the light scattered by two sides of the local brain tissue, which make the monitor achieve the function of dual detector. The appearance of the monitor's detector is designed to reduce effectively the noise brought by the background and alleviate the discomfort feelings of the patient. At the same time, this apparatus can monitor continuously the brain blood-oxygen parameters of the patients in real time, and output the curves of the blood-oxygen and oxygen concentration of two sides of brain tissue. At last, the biological model experiments and the tests in clinical setting validate the monitor.
Blood Gas Analysis
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instrumentation
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methods
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Brain
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blood supply
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Humans
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Monitoring, Physiologic
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instrumentation
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Oximetry
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instrumentation
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methods
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Oxygen
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blood
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Spectroscopy, Near-Infrared
3.Research and implementation of picture archiving and communication system (PACS) based on B/S mode.
Xuefeng YU ; Xuandong YANG ; Kaiyang LI ; Honglin HE ; Xiaohua ZHENG ; Maojin LI ; Jiaji YUAN ; Hongyue HU ; Dashun WU ; Kaidi SHI ; Ronghua WANG ; Yonggang ZHANG
Journal of Biomedical Engineering 2004;21(3):391-393
In this paper, with B/S application and architecture, an integrated solution of PACS is designed, and the function and application of each part of PACS based on the architecture is introduced. The PACS based on this mode is safe, stable, easy to manage and upgrade and convenient for use in telemedicine.
Computer Systems
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Humans
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Radiology Information Systems
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Research
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Software
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Telemedicine