Patent · US Active

Body fluid sampling device

US8333712B2 · kind B2 · utility

10Cited by

0References

4Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Takeshi Imamura · Chigasaki, JP
Norihiko Utsunomiya · Machida, JP
Naoto Mihashi · Nerima, JP

Key dates

Filing date	Dec 28, 2006
Grant date	Dec 18, 2012
Priority date	—
Expiry date	May 9, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2562/242
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A body fluid sampling device comprises an elastic membrane arranged at a part of a hermetically sealed housing having a communication path with a check valve and a needling means arranged beneath the membrane. As the membrane is pressed by a fingertip, the needling means needles through the membrane and further the skin of the fingertip to exude blood. As the fingertip is then separated from the membrane, the exuded blood is efficiently introduced into the housing due to the negative pressure produced in the internal region by the elastic movement of the membrane.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.