Automatic injection device having a magnetic drive system
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United States of America Patent
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Oct 13, 2020
Grant Date -
Aug 24, 2017
app pub date -
Feb 17, 2017
filing date -
Feb 19, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An automatic injection device has an insertion needle configured to be inserted into a patient and a drug container which contains a pharmaceutical product. The drug container includes a plunger. The automatic injection device also has a fluid path which fluidly connects the drug container to the insertion needle. The automatic injection device further has a drive system configured to cause linear movement of the plunger to force the pharmaceutical product into the fluid path. The drive system has a driving element and a movable element. The automatic injection device additionally has electronics configured to provide a signal to the drive system to move the plunger. The movable element has an outer magnet at least partially surrounding the drug container and an inner magnet inside the drug container.
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