| 摘要 |
A bodily fluid space entry detection system includes electrical contacts in non-conducting relationship and associated with a needle cannula. Entry of the distal, sharp tip of the cannula into a bodily fluid space such as a blood vessel or epidural space allows bodily fluid such as blood or spinal fluid to make a conduction path between the contacts which, in turn, causes an alert source to be energized to indicate entry into the bodily fluid space. The alert source could be an LED and/or a buzzer.
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