Single-use lancet device
First Claim
1. A single-use lancet device including a lancet, which is shot by an elastic force accumulated in an elastic member to penetrate into a skin of a user such that bleeding is accomplished from the skin, wherein the lancet device comprises:
- a main body formed in the shape of a hollow cylinder, the main body having a shooting hole formed at the front end thereof and a fixing end formed at the inner circumferential surface thereof adjacent to a front part thereof;
a first elastic member inserted in the front part of the main body;
a wing plate catching member formed in the shape of a hollow cylinder, the wing plate catching member being disposed in the main body while being caught by the fixing end, the wing plate catching member having a plurality of catching protrusions formed at the front end thereof while being protruded inward along the inner circumferential surface thereof;
an actuating member disposed at the rear of the wing plate catching member, the lancet being fixed to the front end of the actuating member, the actuating member having a truncated-conical wing plate and a truncated-conical stopping protrusion formed at the outer circumferential surface thereof while the wing plate and the stopping protrusion are spaced a predetermined distance from each other, the wing plate and the stopping protrusion being constructed such that the diameters of the wing plate and the stopping protrusion are gradually decreased from the rear ends to the front ends of the wing plate and the stopping protrusion, the wing plate being caught by the catching protrusions;
a second elastic member disposed at the rear of the actuating member; and
a push member disposed at the rear part of the main body, while being protruded outward from the main body, for applying pressure to the actuating member through the second elastic member when a user push the push member forward, whereby, when a predetermined force is applied to the actuating member from the push member, the wing plate can pass forward through the wing plate catching member while the catching protrusions are bent, but the wing plate cannot pass backward through the wing plate catching member.
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Accused Products
Abstract
A single-use lancet device comprises a main body having a shooting hole and a fixing end, a first elastic member inserted in the main body, a wing plate catching member disposed in the main body while being caught by the fixing end and having a plurality of catching protrusions formed at the front end thereof, an actuating member disposed at the rear of the wing plate catching member such that a lancet is fixed to the front end of the actuating member, the actuating member having a wing plate and a stopping protrusion, the diameters of which are gradually decreased from the rear ends to the front ends of the wing plate and the stopping protrusion, the wing plate being caught by the catching protrusions, a second elastic member disposed at the rear of the actuating member, and a push member disposed at the rear part of the main body for applying pressure to the actuating member through the second elastic member when a user pushes the push member forward.
115 Citations
5 Claims
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1. A single-use lancet device including a lancet, which is shot by an elastic force accumulated in an elastic member to penetrate into a skin of a user such that bleeding is accomplished from the skin, wherein the lancet device comprises:
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a main body formed in the shape of a hollow cylinder, the main body having a shooting hole formed at the front end thereof and a fixing end formed at the inner circumferential surface thereof adjacent to a front part thereof;
a first elastic member inserted in the front part of the main body;
a wing plate catching member formed in the shape of a hollow cylinder, the wing plate catching member being disposed in the main body while being caught by the fixing end, the wing plate catching member having a plurality of catching protrusions formed at the front end thereof while being protruded inward along the inner circumferential surface thereof;
an actuating member disposed at the rear of the wing plate catching member, the lancet being fixed to the front end of the actuating member, the actuating member having a truncated-conical wing plate and a truncated-conical stopping protrusion formed at the outer circumferential surface thereof while the wing plate and the stopping protrusion are spaced a predetermined distance from each other, the wing plate and the stopping protrusion being constructed such that the diameters of the wing plate and the stopping protrusion are gradually decreased from the rear ends to the front ends of the wing plate and the stopping protrusion, the wing plate being caught by the catching protrusions;
a second elastic member disposed at the rear of the actuating member; and
a push member disposed at the rear part of the main body, while being protruded outward from the main body, for applying pressure to the actuating member through the second elastic member when a user push the push member forward, whereby, when a predetermined force is applied to the actuating member from the push member, the wing plate can pass forward through the wing plate catching member while the catching protrusions are bent, but the wing plate cannot pass backward through the wing plate catching member. - View Dependent Claims (2, 3, 4, 5)
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Specification