Lancet and lancet device including the same
First Claim
1. A lancet to be detachably attached to a main body portion of a lancet device, the lancet device including a biasing member configured to cause a tip of a puncture needle to protrude in a predetermined puncturing direction, the lancet comprising:
- a puncture body including a puncture needle and a connection portion which is formed on an end opposite to the puncture needle and is releasably connected to the main body portion of the lancet device;
a case portion including a tubular portion which accommodates the puncture body so as to be movable back and forth in the puncturing direction, and an opening formed on an end such that the puncture needle protrudes through the opening; and
a first fitting portion formed on the tubular portion of the case portion and being disconnected from the puncture body prior to puncturing use and holding the puncture body within the case portion so as to be immovable back and forth in the puncturing direction after puncturing use when the connection portion of the puncture body is released from the main body portion of the lancet device after puncturing use.
1 Assignment
0 Petitions
Accused Products
Abstract
In order to provide a lancet which has a simple structure and which can secure safety, in particular, after use, and a lancet device including the same, a lancet (20) includes a casing (22), and a puncture body (23) which is accommodated in the casing (22) so as to be movable in a puncturing direction. For removing the lancet (20) from a main body (30), the lancet (20) has a convex portion (22b) formed on an inner surface (22a) of the casing (22) and a recessed portion (groove (23c)) formed on the puncture body (23), which form fitting for holding the puncture body (23) so as to be immovable in the puncturing direction in the casing (22).
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Citations
32 Claims
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1. A lancet to be detachably attached to a main body portion of a lancet device, the lancet device including a biasing member configured to cause a tip of a puncture needle to protrude in a predetermined puncturing direction, the lancet comprising:
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a puncture body including a puncture needle and a connection portion which is formed on an end opposite to the puncture needle and is releasably connected to the main body portion of the lancet device; a case portion including a tubular portion which accommodates the puncture body so as to be movable back and forth in the puncturing direction, and an opening formed on an end such that the puncture needle protrudes through the opening; and a first fitting portion formed on the tubular portion of the case portion and being disconnected from the puncture body prior to puncturing use and holding the puncture body within the case portion so as to be immovable back and forth in the puncturing direction after puncturing use when the connection portion of the puncture body is released from the main body portion of the lancet device after puncturing use. - 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, 27, 28, 29, 30, 31)
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32. A lancet to be detachably attached to a main body portion of a lancet device, the lancet device including a biasing member configured to cause a tip of a puncture needle to protrude in a predetermined puncturing direction, the lancet comprising:
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a puncture body including a puncture needle and a connection portion which is formed on an end opposite to the puncture needle and is connected to the main body of the lancet device; a case portion including a tubular portion which accommodates the puncture body so as to be movable back and forth in the puncturing direction, and an opening formed on an end thereof such that the puncture needle protrudes through the opening; a cap portion removably fitted to the case portion such that when the cap portion is fitted to the case portion, the cap portion conceals the puncture needle and when the cap portion is removed the puncture needle is exposed and ready for puncturing use; and a first fitting portion formed on the case portion and being disconnected from the puncture body prior to puncturing use holding the puncture body in the case portion so as to be immovable back and forth in the puncturing direction when the connection portion of the puncture body is separated from the main body portion of the lancet device.
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Specification