Puncture instrument, puncture needle cartridge mounted in puncture instrument, and method for using puncture instrument and puncture needle cartridge
First Claim
1. A puncture instrument having a first end side, which is the side on which a puncture needle cartridge is mounted, and a second end side opposite the first end side, said puncture instrument comprising:
- an elongated main case including an opening on the first end side and on the second end side;
a main rod provided in the main case;
an injector rod mounted to the main rod and including a lancet holder on the first end side;
an actuating rod mounted to the injector rod and including an engagement component on the second end side;
a first biasing member configured to bias the injector rod toward the first end side;
a manipulation component provided slidably in and out of the opening on the second end side of the main case; and
a locking member rotatably supported by a portion of the main rod between the injector rod and the manipulation component, the locking member including a first engaged part configured to engage the engagement component of the actuating rod, a second engaged part configured to abut a portion of the manipulation component on the first end side, and a second biasing member configured to bias the first engaged part toward the engagement component,wherein the manipulation component has on the first end side thereof a flat part configured to abut the second engaged part of the locking member, and an inclined part adjacent to the flat part, the inclined part extending to the second end side and being inclined to an axis of the main case,the locking member rotates by an action of mounting the puncture needle cartridge so that the second engaged part rotates from a position opposite the flat part of the manipulation component to a position opposite the inclined part; and
the locking member abuts the flat part when the manipulation component is pushed by an action of disposing the puncture needle cartridge so that the locking member slides toward the first end side with the main rod and the puncture needle cartridge is disposed.
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Accused Products
Abstract
It is an object of this disclosure to facilitate a series of puncture-related operations in a puncture instrument. In a main case of a puncture instrument, a main rod is provided. An injector rod is mounted to a main rod and includes a lancet holder on one end side. An actuating rod is mounted to the injector rod and has an engagement component on the other end side. A first biasing member biases the injector rod toward the first end side. A manipulation component is provided so as to be slidable in and out through an opening on the other end side of the main case. A locking member is axially supported rotatably by a portion of the main rod between the manipulation component and the injector rod. The locking member includes a first engaged part, a second engaged part and a second biasing member.
19 Citations
14 Claims
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1. A puncture instrument having a first end side, which is the side on which a puncture needle cartridge is mounted, and a second end side opposite the first end side, said puncture instrument comprising:
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an elongated main case including an opening on the first end side and on the second end side; a main rod provided in the main case; an injector rod mounted to the main rod and including a lancet holder on the first end side; an actuating rod mounted to the injector rod and including an engagement component on the second end side; a first biasing member configured to bias the injector rod toward the first end side; a manipulation component provided slidably in and out of the opening on the second end side of the main case; and a locking member rotatably supported by a portion of the main rod between the injector rod and the manipulation component, the locking member including a first engaged part configured to engage the engagement component of the actuating rod, a second engaged part configured to abut a portion of the manipulation component on the first end side, and a second biasing member configured to bias the first engaged part toward the engagement component, wherein the manipulation component has on the first end side thereof a flat part configured to abut the second engaged part of the locking member, and an inclined part adjacent to the flat part, the inclined part extending to the second end side and being inclined to an axis of the main case, the locking member rotates by an action of mounting the puncture needle cartridge so that the second engaged part rotates from a position opposite the flat part of the manipulation component to a position opposite the inclined part; and the locking member abuts the flat part when the manipulation component is pushed by an action of disposing the puncture needle cartridge so that the locking member slides toward the first end side with the main rod and the puncture needle cartridge is disposed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A puncture instrument having a first end side, which is the side on which a puncture needle cartridge is mounted, and a second end side opposite the first end side, said puncture instrument comprising:
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an elongated main case including an opening on the first end side and on the second end side; a main rod provided in the main case; an injector rod mounted to the main rod and including a lancet holder on the first end side; an actuating rod mounted to the injector rod and including an engagement component on the second end side; a first biasing member configured to bias the injector rod toward the first end side; a manipulation component provided slidably in and out of the opening on the second end side of the main case; and a locking member rotatably supported by a portion of the main rod between the injector rod and the manipulation component, the locking member including a first engaged part configured to engage the engagement component of the actuating rod, a second engaged part configured to abut a portion of the manipulation component on the first end side, and a second biasing member configured to bias the first engaged part toward the engagement component, wherein the manipulation component has on the first end side thereof a flat part configured to abut the second engaged part of the locking member, and two inclined parts adjacent to the flat part, the inclined parts extending from an axial area of flat part and towards the second end side of the main case, the inclined parts further extending away from each other and towards opposite exterior sides of the main case, and the locking member rotates by an action of mounting the puncture needle cartridge so that the second engaged part moves from a position opposite the flat part of the manipulation component to a position opposite to one of the two inclined parts.
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Specification