Method and apparatus for body fluid sampling with hybrid actuation
OwnerDirk Boecker, Dominique M. Freeman +3inventors
InventorsDirk Boecker, Dominique M. Freeman, Don Alden, Matt Schumann, Mike Beadman
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Abstract
In one aspect, a body fluid sampling device is provided using a penetrating member to extract fluid from an anatomical feature. The device comprises a penetrating member actuator for moving the penetrating member inbound towards the anatomical feature and a non-spring based, penetrating member retractor for moving the penetrating member outbound away from the anatomical feature. The penetrating member actuator may be adapted to move the penetrating member at a velocity greater than a velocity achieved by the penetrating member retractor.
Claims11
A body fluid sampling device for extracting bodily fluid from an anatomical feature, said device comprising:
- a cartridge having at least one outlet port;
- a plurality of penetrating members positioned in the cartridge, each slidably movable between a first position and a second position to extend outward from said cartridge to penetrate a tissue site of the anatomical feature;
- a penetrating member driver structured to selectively and independently engage said penetrating members, said penetrating member driver configured to exert a distal drive force to the penetrating member to drive the penetrating member out of the outlet port, wherein the penetrating member is configured to be withdrawn from the outlet by a proximal retraction force, and a cartridge advance device configured to move the cartridge and enable engagement of an unused penetrating member to be launched to the tissue site and preventing reuse of a penetrating member.
Dependencies are inferred from the claim text.