Disposable blood collecting instrument
AssigneeNipro Corporation
InventorsTomohiro Uchimura, Kohzo Ishikura, Ken Suzuki
Life of this patent
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Abstract
Disclosed is a disposable blood collecting instrument that stably secures a sufficient volume of blood with a single puncture. A tip portion of a piercing body of a lancet contained within a housing projects by means of a biasing force of a spring assembly, and a surrounding area of an opening of the housing is made a transparent visible portion with a visible interior. Additionally, the disposable blood collecting instrument has been formed such that the spring assembly is contained within housing farther behind the piercing body than a position of the tip portion of the piercing body that has entered within the housing after piercing.
Claims5
A disposable blood collecting instrument comprising:
- a lancet having a sharp piercing body at a tip thereof, and
- a spring assembly stored together with the lancet in a housing,
- a tip portion of the piercing body being arranged to protrude out of an opening of the housing to perform a piercing operation by means of a biasing force generated by the spring assembly, and the tip portion of the piercing body being arranged to retract to a recessed position within the housing after the piercing operation,
- wherein a surrounding area of the opening of the housing is made to be a visible portion with transparency that allows a view of an inside;
- and
- the spring assembly is located on a retracting side of the piercing body from the tip portion thereof when the lancet is retracted to the recessed position.
Dependencies are inferred from the claim text.