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Article type: Cover
1994 Volume 64 Issue 6 Pages
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Article type: Appendix
1994 Volume 64 Issue 6 Pages
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Article type: Index
1994 Volume 64 Issue 6 Pages
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Article type: Index
1994 Volume 64 Issue 6 Pages
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Junya Sakai, Heiji Yoshinaka, Masaru Ohyama, Mizuho Suzuki, Naohito Ka ...
Article type: Original Contribution
1994 Volume 64 Issue 6 Pages
257-263
Published: June 01, 1994
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The preparation of sterile surgical ice slush from Ringer's solution just in time for cardiovascular procedures has recently become an important topic for discussion. Circulation nurses frequently have to spend time making ice slush by shattering frozen Ringer's solution with a hammer and then shaving the pieces with an ice cutter in the operating room. This method has proved to be both labor and time consuming for circulation nurses. To better utilize nursing time, we felt that there was a need for a new product which incorporates an automated sterile ice slush maker composed of a refrigerating unit and a shaker. During development of the machine we tried to determine the optimum chilling temperatures, time and shaking frequency required to produce the soft ice slush with this particular device. The results of our examinations are as follows : 1. The optimum temperature for making ice slush is -8℃ or less. The time required is approximately 3 or 4 hours. 2. In order to keep the soft ice slush from freezing, continuous shaking at the rate of 75 times per minute is required. 3. A temperature of -2℃ is required for the long term preservation of ice slush.As a result of our research, the sterile ice slush refrigerator was developed in 1993 to reduce the amount of work required for making ice slush. This device has been well received by all of the circulation nurses at our operation center, and is seeing good results. We have experienced very few problems with the device and it has been very easy to train our staffs in its use.
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Akio Sakai, Tateo Saito, Kouzo Azuma, Yasunori Yanagidaira, Koji Asano
Article type: Original Contribution
1994 Volume 64 Issue 6 Pages
264-269
Published: June 01, 1994
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If the light is inserted into the surface of the tissue, the distribution of the intensity of the light will form the shape of a hemisphere because of the strong scattering of light. So the intensity of the light obtained at a certain depth from the point of insertion is considered equal to that of the light obtained from the same distance on the surface. If we apply Lambert-Beer's law to the increase of absorption in blood flow when pressure is canceled, we can determine the oxygen saturation level of the blood (StO_2) and hemoglobin volume (Hb vol) in the tissue non-invasively and continuously. We made a device based on this theory and then conducted experiments on cold-induced vasooscillation and on low pressure. We found that there is a high correlation between Hb volume and skin temperature under cold : StO_2 and StO_2 under low pressure : StO_2 and SvO_2 under low pressure. Fore the reasons mentioned above, we can conclude that our device is very useful for premedical and clinical medicine.
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S. SEKIGUCHI, [in Japanese]
Article type: Review
1994 Volume 64 Issue 6 Pages
270-276
Published: June 01, 1994
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Y. HIGUCHI, [in Japanese], [in Japanese]
Article type: Constitution
1994 Volume 64 Issue 6 Pages
277-281
Published: June 01, 1994
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H. OKUDERA, [in Japanese], [in Japanese], [in Japanese]
Article type: Constitution
1994 Volume 64 Issue 6 Pages
282-285
Published: June 01, 1994
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Y. TERADA, [in Japanese]
Article type: Experience to Use
1994 Volume 64 Issue 6 Pages
286-287
Published: June 01, 1994
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[in Japanese]
Article type: Report of Research Committee
1994 Volume 64 Issue 6 Pages
288-290
Published: June 01, 1994
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[in Japanese]
Article type: Report of Research Committee
1994 Volume 64 Issue 6 Pages
290-292
Published: June 01, 1994
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[in Japanese]
Article type: Report of Research Committee
1994 Volume 64 Issue 6 Pages
293-295
Published: June 01, 1994
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Article type: Appendix
1994 Volume 64 Issue 6 Pages
296-
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Article type: Appendix
1994 Volume 64 Issue 6 Pages
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Article type: Appendix
1994 Volume 64 Issue 6 Pages
A10-A11
Published: June 01, 1994
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Article type: Cover
1994 Volume 64 Issue 6 Pages
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Published: June 01, 1994
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