Automatic safe self-destructive disposable blood sampling device
US7175643B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 20, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Dec 29, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/15144
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A one time use disposable blood sampling device comprises a case defining a shoot chamber with a lancet-exiting hole, and a lancet disposed slidably in the shoot chamber with a puncturing tip pointed to the lancet-exiting hole. The sampling device further comprises a locking and shooting structure formed of an elastic arm button and an elastic arm. The button engaging end of the elastic arm button faces a locking hole on a side wall of the case. A free end of the elastic arm engages with the locking hole in a locking state. Upon pressing of the elastic arm button, the elastic arm disengages from the locking hole, and the lancet moves under spring action inside the shoot chamber causing the elastic arm to contact a bevel. A root portion of the elastic arm is notched or has a shrink neck which causes the elastic arm to automatically self-break upon contact with the bevel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.