Lancet system with a sterile protector
First Claim
Patent Images
1. A lancet system for withdrawing body fluid from a body part, comprising:
- a housing;
a lancet reciprocably disposed in the housing, the lancet comprising a first widening extending from a sharp lancet tip and at least one further widened portion, wherein the first widening and the further widened portion are separated by at least one section of a lancet shaft; and
a plastic member sealing the housing;
wherein, during a puncture movement of the lancet, the sharp lancet tip pierces the plastic member to produce an opening through which the sharp lancet tip then extends and punctures a body part, the further widened portion contacting the plastic member during the puncture movement and thereby enlarging the opening.
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Accused Products
Abstract
The present invention provides a lancet system having a lancet tip, a lancet body, and an outer body or housing which surrounds the lancet tip and in which the lancet tip is movable. The outer body or housing comprises deformable material which can be pierced by the lancet tip during a puncture operation to produce an outlet opening. The outlet opening can be widened during the puncture operation by a thickened or widened portion of the lancet body that at least partially protrudes through the opening. Other embodiments of the present invention include a pricking aid and/or lancet system provided as a magazine for holding a plurality of lancets.
19 Citations
30 Claims
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1. A lancet system for withdrawing body fluid from a body part, comprising:
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a housing; a lancet reciprocably disposed in the housing, the lancet comprising a first widening extending from a sharp lancet tip and at least one further widened portion, wherein the first widening and the further widened portion are separated by at least one section of a lancet shaft; and a plastic member sealing the housing; wherein, during a puncture movement of the lancet, the sharp lancet tip pierces the plastic member to produce an opening through which the sharp lancet tip then extends and punctures a body part, the further widened portion contacting the plastic member during the puncture movement and thereby enlarging the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lancet system for pricking a body part and withdrawing body fluid, comprising:
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a magazine including a plurality of chambers; a plurality of lancets, each one of the plurality of lancets being movably mounted in a respective one of the plurality of chambers, each lancet comprising a first widening extending from a sharp lancet tip and at least one further widened portion, wherein the first widening and the further widened portion are separated by at least one section of a lancet shaft; a plurality of plastic members, each one of the plurality of plastic members sealing a respective one of the plurality of chambers; and wherein, during a puncture movement of one of the plurality of lancets, the sharp lancet tip of the one lancet pierces the respective plastic member to produce an opening through which the sharp lancet tip then extends and punctures a body part, the further widened portion contacting the respective plastic member during the puncture movement and thereby enlarging the opening. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A lancet system, comprising:
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a housing; a lancet reciprocably disposed in the housing, the lancet comprising a first widening extending from a sharp lancet tip and at least one further widened portion, wherein the first widening and the further widened portion are separated by at least one section of a lancet shaft; the lancet being movable between a retracted position and an extended position during a puncture movement; wherein, in the retracted position of the lancet, a plastic member seals the housing and the sharp lancet tip is surrounded by the housing; and further wherein, in the extended position of the lancet, the sharp lancet tip extends through an opening in the plastic member that is created when the sharp lancet tip pierces the plastic member during the puncture movement, the further widened portion contacting the plastic member and defining the size of the opening in the extended position. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification