DIAPHRAGM PUMPS FOR MEDICAL APPLICATIONS
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United States of America Patent
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Issued Date -
Jan 18, 2018
app pub date -
Jul 13, 2016
filing date -
Jul 13, 2016
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Abstract
Apparatus and methods described include a pump, which includes a piston, a diaphragm coupled to the piston and defining a wall of a fluid chamber, and a snail cam. The snail cam is configured to, by rotating, alternatingly (i) pump fluid from the fluid chamber, and (ii) draw fluid into the fluid chamber, by driving the piston to move the diaphragm. Other embodiments are also described.
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