Needle insertion device
First Claim
1. A lancing device comprising:
- a first moving member holding a lancing member that is moved from a standby position to a puncturing position in a puncturing direction for puncturing a target portion by the lancing member;
a second moving member connected to the first moving member for controlling the movement of the first moving member, the second moving member being moved between a retreated position and an advanced position;
a housing for accommodating the first and second moving members while allowing the movement of the first and second moving members;
a latch mechanism for latching the second moving member onto the housing at the advanced position;
a movement converting mechanism for converting retreating movement of the second moving member from the advanced position toward the retreated position into advancing movement of the lancing member from the standby position toward the puncturing position; and
an impact absorber provided separately from the latch mechanism, the impact absorber being spaced from the second moving member when the second moving member is latched onto the housing by the latch mechanism, the impact absorber coming into contact with the second moving member in the retreating movement toward the retreated position for absorbing impact that is caused when the first and second moving members come to stop during a puncturing operation.
1 Assignment
0 Petitions
Accused Products
Abstract
A lancing device (X) comprising a first moving member (32) holding a lancing member (11) moved from a standby position to a puncturing position in a puncturing direction (N1), for puncturing a target portion by the lancing member (11). The lancing device (X) further comprises a second moving member (31) connected to the first moving member (32), for controlling the movement of the first moving member (32) upon the movement of the second moving member, and also comprises an impact absorbing means (23A) for absorbing impact that is caused when the first and the second moving members (31), (32) come to stop on puncture operation. The impact absorbing means (23A) includes an elastic member (23Ab) for absorbing impact by elastic deformation.
18 Citations
17 Claims
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1. A lancing device comprising:
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a first moving member holding a lancing member that is moved from a standby position to a puncturing position in a puncturing direction for puncturing a target portion by the lancing member; a second moving member connected to the first moving member for controlling the movement of the first moving member, the second moving member being moved between a retreated position and an advanced position; a housing for accommodating the first and second moving members while allowing the movement of the first and second moving members; a latch mechanism for latching the second moving member onto the housing at the advanced position; a movement converting mechanism for converting retreating movement of the second moving member from the advanced position toward the retreated position into advancing movement of the lancing member from the standby position toward the puncturing position; and an impact absorber provided separately from the latch mechanism, the impact absorber being spaced from the second moving member when the second moving member is latched onto the housing by the latch mechanism, the impact absorber coming into contact with the second moving member in the retreating movement toward the retreated position for absorbing impact that is caused when the first and second moving members come to stop during a puncturing operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A lancing device comprising:
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a first moving member holding a lancing member moved from a standby position to a puncturing position in a puncturing direction for puncturing a target portion by the lancing member; a second moving member connected to the first moving member for controlling the movement of the first moving member; a housing for accommodating the first and the second moving members while allowing the movement of the moving members; a movement converting mechanism for converting retreating movement of the second moving member away from the puncturing position into advancing movement of the lancing member to the puncturing position; and an impact absorber that comes into contact with the second moving member in the retreating movement for absorbing impact that is caused when the first and the second moving members come to stop during a puncturing operation; wherein the movement converting mechanism comprises a fixed pin fixed to the housing, a first link extending from the fixed pin, a first movable pin connected to the first link, a second link extending from the first movable pin, a second movable pin connected to the second link, a first groove formed in the second moving member and having an inclined portion for movably receiving the first movable pin, and a second groove formed in the first moving member for movably receiving the second movable pin.
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Specification