Lancet device for generating a puncture wound, and lancet drive assembly
First Claim
1. A lancing device, comprising:
- a housing;
a lancet drive disposed in the housing and including a drive rotor driven by a drive spring;
a first coupling mechanism disposed in the housing and including a lancet connecting arm configured to connect to a lancet, the first coupling mechanism transforming motion of the drive rotor into reciprocating motion of the lancet connecting arm;
a reference element that is moveable relative to the housing and relative to the lancet connecting arm, the reference element having a contact surface adapted to contact skin to be punctured during the reciprocating motion of the lancet connecting arm; and
a second coupling mechanism which couples the reference element to the lancet drive, wherein movement of the lancet drive is transformed into movement of the reference element, the second coupling mechanism transforming movement of the drive rotor into a return movement of the reference element.
5 Assignments
0 Petitions
Accused Products
Abstract
A lancet device for generating a puncture wound in a skin surface, comprising a housing, in which a lancet can be moved on a puncturing path, a lancet drive with a drive rotor that can be driven by a drive spring, a lancet coupling mechanism that transforms a rotational motion of the drive rotor into a puncturing and returning motion of the lancet during a working cycle of the lancet drive, a reference element that is mobile relative to the lancet and relative to the housing and is fixed in a defined position relative to the lancet drive during the puncturing and rests against the surface of the skin with a contact surface thereof such that a puncture wound with a reproducible puncturing depth is generated by the puncturing motion, and a reference element coupling mechanism that is coupled to the lancet drive in order to move the reference element. The invention further relates to a suitable lancet drive assembly for a lancet device of this type.
43 Citations
15 Claims
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1. A lancing device, comprising:
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a housing; a lancet drive disposed in the housing and including a drive rotor driven by a drive spring; a first coupling mechanism disposed in the housing and including a lancet connecting arm configured to connect to a lancet, the first coupling mechanism transforming motion of the drive rotor into reciprocating motion of the lancet connecting arm; a reference element that is moveable relative to the housing and relative to the lancet connecting arm, the reference element having a contact surface adapted to contact skin to be punctured during the reciprocating motion of the lancet connecting arm; and a second coupling mechanism which couples the reference element to the lancet drive, wherein movement of the lancet drive is transformed into movement of the reference element, the second coupling mechanism transforming movement of the drive rotor into a return movement of the reference element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification