Patent · US Expired

Automatic retractable lancet assembly

US4449529A · kind A · utility

328Cited by
9References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 18, 1981
Grant dateMay 22, 1984
Priority date
Expiry dateNov 18, 2001

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61B5/15144
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

An automatic retractable lancet assembly includes a housing with a sharp-pointed lancet movably mounted therein. A slidable plunger is mounted in the housing in the end thereof opposite from the lancet for loading the assembly prior to use. An actuating mechanism releases the lancet for outward movement from the housing. After this outward movement is completed, the actuator elements become dissociated from further movement of the lancet. Subsequently, the lancet is automatically retracted back inside the housing by virtue of a spring element.

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