Puncture device
First Claim
1. A lancing apparatus comprising a lancet holder for retaining a lancet and a lancet moving mechanism for moving the lancet, the lancet including a main body and a needle projecting from the body, the lancet holder being moved in a lancing direction from a standby position to a lancing position together with the lancet in response to movement of the lancet moving mechanism so as to cause the lancet to stick into an object, the lancet being inserted into the lancet holder in a retreating direction opposite to the lancing direction, thus to be retained by the lancet holder,wherein the lancet holder includes a first member and a second member that are movable relative to each other, the second member being in direct contact with the first member and being movable relative to the first member between a fixing position in which the main body of the lancet is fixed to the lancet holder with a first fixing force for limiting axial removal of the lancet from the lancet holder and a non-fixing position in which the main body of the lancet is held by the lancet holder with a second fixing force smaller than the first fixing force for facilitated axial removal of the lancet from the lancet holder, the second member being moved in the lancing direction together with the first member and the lancet in response to the movement of the lancet moving mechanism for causing the lancet to stick into the object when the second member is held in the fixing position for fixing the lancet to the lancet holder.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention provides a lancing apparatus for moving a lancet holder (32) retaining a lancet in a lancing direction (N1) from a standby position to a lancing position together with the lancet so as to cause the lancet to stick into an object. In the lancing apparatus the lancet is inserted into the lancet holder (32) in a retreating direction (N2), thus to be retained by the lancet holder. The lancet holder (32) includes a first member and a second member (33, 34) relatively movable with respect to each other, so that the first and the second members (33), (34) are relatively moved so as to fix the lancet. Preferably, the lancet holder (32) is constructed such that at least either of the first and the second members (33, 34) applies a pressing force to the lancet, so as to fix the lancet.
-
Citations
21 Claims
-
1. A lancing apparatus comprising a lancet holder for retaining a lancet and a lancet moving mechanism for moving the lancet, the lancet including a main body and a needle projecting from the body, the lancet holder being moved in a lancing direction from a standby position to a lancing position together with the lancet in response to movement of the lancet moving mechanism so as to cause the lancet to stick into an object, the lancet being inserted into the lancet holder in a retreating direction opposite to the lancing direction, thus to be retained by the lancet holder,
wherein the lancet holder includes a first member and a second member that are movable relative to each other, the second member being in direct contact with the first member and being movable relative to the first member between a fixing position in which the main body of the lancet is fixed to the lancet holder with a first fixing force for limiting axial removal of the lancet from the lancet holder and a non-fixing position in which the main body of the lancet is held by the lancet holder with a second fixing force smaller than the first fixing force for facilitated axial removal of the lancet from the lancet holder, the second member being moved in the lancing direction together with the first member and the lancet in response to the movement of the lancet moving mechanism for causing the lancet to stick into the object when the second member is held in the fixing position for fixing the lancet to the lancet holder.
-
21. A lancing apparatus comprising a lancet holder for retaining a lancet and a lancet moving mechanism for moving the lancet, the lancet including a main body and a needle projecting from the body, the lancet holder being moved in a lancing direction from a standby position to a lancing position together with the lancet in response to movement of the lancet moving mechanism so as to cause the lancet to stick into an object, the lancet being inserted into the lancet holder in a retreating direction opposite to the lancing direction, thus to be retained by the lancet holder,
wherein the lancet holder includes a first member and a second member that are movable relative to each other in a needle extending direction, the first member being connected to the lancet moving mechanism for movement therewith in the lancing direction, the second member being in direct contact with the first member and being movable relative to the first member between a fixing position in which the main body of the lancet is fixed to the lancet holder and a non-fixing position in which the main body of the lancet is allowed to be removed from the lancet holder, the second member including a movable fixing portion that moves in a direction crossing the needle extending direction for fixing contact with the main body of the lancet in response to the movement of the second member from the non-fixing position to the fixing position, the first member being moved in the lancing direction together with the second member and the lancet for causing the lancet to stick into the object when the second member is held in the fixing position for fixing the lancet to the lancet holder.
Specification