Disposable lancet device

Details Disposable lancet device Disposable lancet device

1990-10-29

1992-03-31

Hindenburg, Max

Surgery

Instruments

Cutting, puncturing or piercing

A61B 1732

Patent

active

051004275

ABSTRACT:
A blood sampling device in the form of a small manually operated pricker has a barrel (7,21) in which a lancet (1) is captive with a spring (17,22). Partly embracing the barrel is a C-section sleeve (12,30) with a projection (16,35) extending through a slot (10,25) in the barrel to engage the lancet. Initially the lancet is in a forward position with its tip (4) slightly retracted and the spring relaxed, and to prime the device the sleeve is slid to the rear, taking the lancet with it and energising the spring. The lancet may be held there by its tail (1A) being gripped by the barrel (7) while the sleeve (12) is irreversibly deformed or broken by a formation (11) on the barrel and then discarded. The lancet is subsequently released to prick by pressing the tail (1A). Alternatively, the sleeve (30) may be trapped at the rearward position and the lancet released by a trigger (32) on the sleeve withdrawing the projection (35).

REFERENCES:
patent: 4139011 (1979-02-01), Benoit et al.
patent: 4230118 (1980-10-01), Holman et al.
patent: 4375815 (1983-03-01), Burns
patent: 4379456 (1983-04-01), Cornell et al.
patent: 4388925 (1983-07-01), Burns
patent: 4416279 (1983-11-01), Lindner et al.
patent: 4517978 (1985-05-01), Levin et al.
patent: 4527561 (1985-07-01), Burns
patent: 4715374 (1987-12-01), Maggio
patent: 4817603 (1989-04-01), Turner et al.
patent: 4856515 (1989-08-01), Turner et al.
patent: 4895147 (1990-01-01), Bodicky et al.

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