SYRINGE-LIKE HAND SWITCH
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United States of America Patent
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Issued Date -
Mar 18, 2010
app pub date -
Dec 28, 2006
filing date -
Dec 28, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
At the insertion movement of plunger member in cylinder member, a photosensor is in the position of sensing the movement of slit area. As a result, when the plunger member is pressed inward by an operator, light transmission zones and light shielding zones alternately provided in the slit area are sensed by the photosensor. Accordingly, there can be provided a syringe-like hand switch such that in the chemical introduction control of injector head for injection of chemicals, such as a contrast medium, in patients, both parameters for injection speed and injection quantity can be controlled by the senses at use of conventional syringes.
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