Lancing apparatus
First Claim
Patent Images
1. A lancing apparatus for moving a lancing element in a lancing direction from a wait position to a lancing position to lance an intended portion with the lancing element, the lancing apparatus comprising:
- a first member which is reciprocally movable in the lancing direction and in a retreating direction which is opposite from the lancing direction;
a second member which moves along with the lancing element and performs reciprocal movement in the lancing direction and the retreating direction in accordance with the movement of the first member; and
movement conversion means for converting the reciprocal movement of the first member into the reciprocal movement of the second member in a manner such that a directional change of movement of the second member from the lancing direction to the retreating direction is performed during a one-way stroke of the first member in one of the lancing direction and the retreating direction;
wherein the first member is reciprocally movable between a first fixed position and a second fixed position;
wherein the second member performs one cycle of reciprocal movement between a third fixed position and a fourth fixed position during one cycle of reciprocal movement of the first member between the first fixed position and the second fixed position.
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Abstract
A lancing apparatus that moves a lancing element in a lancing direction from a wait position to a lancing position thereby lancing an intended portion with the lancing element. The lancing apparatus has a first member which moves reciprocally in the lancing direction and in the retreating direction. A second member moves with the lancing element and performs reciprocal movement in the lancing and retreating directions in accordance with the movement of the first member.
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Citations
28 Claims
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1. A lancing apparatus for moving a lancing element in a lancing direction from a wait position to a lancing position to lance an intended portion with the lancing element, the lancing apparatus comprising:
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a first member which is reciprocally movable in the lancing direction and in a retreating direction which is opposite from the lancing direction; a second member which moves along with the lancing element and performs reciprocal movement in the lancing direction and the retreating direction in accordance with the movement of the first member; and movement conversion means for converting the reciprocal movement of the first member into the reciprocal movement of the second member in a manner such that a directional change of movement of the second member from the lancing direction to the retreating direction is performed during a one-way stroke of the first member in one of the lancing direction and the retreating direction; wherein the first member is reciprocally movable between a first fixed position and a second fixed position; wherein the second member performs one cycle of reciprocal movement between a third fixed position and a fourth fixed position during one cycle of reciprocal movement of the first member between the first fixed position and the second fixed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A lancing apparatus for moving a lancing element in a lancing direction from a wait position to a lancing position to lance an intended portion with the lancing element, the lancing apparatus comprising:
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a housing; a first member which is reciprocally movable within the housing in the lancing direction and in a retreating direction which is opposite from the lancing direction; a second member which moves within the housing along with the lancing element and performs reciprocal movement in the lancing direction and the retreating direction in accordance with the movement of the first member; and a movement conversion mechanism for converting the reciprocal movement of the first member into the reciprocal movement of the second member, the movement conversion mechanism including a stationary pin held at a fixed position relative to the housing, a first link arm connected to the first member and to the stationary pin for pivoting about the stationary pin, and a second link arm connected to the first link arm and to the second member for pivoting about the stationary pin, an angle being formed between the first and second link arms in a pivoting direction of the first and second link arms about the stationary pin.
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28. A lancing apparatus for moving a lancing element in a lancing direction from a wait position to a lancing position to lance an intended portion with the lancing element, the lancing apparatus comprising:
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a housing; a first member, which is reciprocally movable within the housing in the lancing direction and in a retreating direction, which is opposite from the lancing direction; a second member, which moves within the housing along with the lancing element and performs reciprocal movement in the lancing direction and the retreating direction in accordance with the movement of the first member; and a movement conversion mechanism for converting the reciprocal movement of the first member into the reciprocal movement of the second member, the movement conversion mechanism including a stationary pin held at a fixed position relative to the housing, and a link member supported on the stationary pin for pivoting about the stationary pin, wherein the link member includes a first arm carrying a first movable pin connected to the first member, and a second arm carrying a second movable pin connected to the second member, the first arm being connected to the second arm at an angle that is defined as an angle between the first and second arms in a pivoting direction of the link member about the stationary pin, said angle being invariable regardless of positions of the first and second members.
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Specification