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US 5,891,053 AGranted
Blood-collecting device
AssigneeKabushiki Kaisya Advance
InventorTetsuya Sesekura
Life of this patent
Estimating the term…
Abstract
A blood-collecting device includes a suction device for suctioning and thereby swelling a portion of a patient's skin by decompression so that a movable paracentetic needle can be driven into the swollen skin to puncture the skin. Once the skin has been punctured, the paracentetic needle is withdrawn while suction is maintained on the swollen skin in order to draw a blood sample from the patient.
Claims9
A blood-collecting device which comprises:
- suction means for suctioning a blood collection site of a patient's skin to induce swelling of the skin by decompression,
- a moveable paracentetic member,
- means for moving the paracentetic member toward the swollen skin to impact and puncture the skin, and
- removal means for moving the paracentetic member away from the skin, wherein the suction means further permits blood to be drawn from the punctured skin.
1 more element
Dependencies are inferred from the claim text.