Centesis instrument
US8147425B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2006 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/15194
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A centesis instrument, wherein a patient applies a contact part to a palm, a finger, or an arm in the state of gripping an outer tube by hand and presses the outer tube against its measured portion. A third coiled spring is compressed to increase spring power. When the outer tube reaches a prescribed position, the tip face of the vertical portion of a centesis button reaches a hole part, and a projected part is allowed to be pressed. When the patient presses a button body from a direction perpendicular to the axis of the button body by using a finger at that position, a locking piece is separated from a locking part and the centesis needle of a centesis needle unit is instantaneously projected from the opening part of the contact part to the measured portion by the spring power of the third coiled spring for centesis. Thus, a prescribed amount of blood can be taken out from the measured portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.