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From ZDNet - Where Technology Means Business:
 What else can inkjet technology be used for? Injecting drugs into humans, according to Hewlett-Packard. The company is licensing a medical patch it has developed to Ireland's Crospon that potentially can replace hypodermic needles or pills for delivering vaccines or other types of medication to patients. The patch contains up to 90,000 microneedles per square inch, microprocessors and a thermal unit. Medications contained in the patch are heated and then injected through the needles. Processors can monitor drug delivery, deliver doses over extended periods of time or deliver drugs in response to a patient's vital signs (e.g., blood pressure or heart rate), depending on how it is programmed. "You can have combinations of different drugs delivered at different times," said Joe Beyers, vice president of HP's intellectual property licensing group.
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