发明授权
US07947057B2 Lancet having adjustable penetration depth 有权
柳叶刀具有可调的穿透深度

Lancet having adjustable penetration depth
摘要:
Lancet device including a first housing. A first guide wall is disposed within the first housing. The first guide wall includes an opening. A cap removably mounted to the first housing. A needle holding member for holding a lancet. At least a portion of the needle holding member being able to move within the opening. A first spring for biasing the needle holding member toward an extended position. The first spring surrounding a portion of the needle holding member and being disposed between the first guide wall and a shoulder of the needle holding member. A movable trigger having a first position and a second position. A movable second housing including a proximal end, a distal end and a second guide wall arranged at the proximal end. The second guide wall including an opening. A portion of the needle holding member being able to move within the opening of the second guide wall. The second housing being configured to move the needle holding member to the retracted position when the second housing is moved away from the first housing. The proximal end of the second housing being configured to move axially within the distal end of the first housing. A second spring for biasing the second housing towards the first housing. The second spring surrounding a portion of the needle holding member and being disposed between the second guide wall and another shoulder of the needle holding member. At least a portion of the needle holding member is always retained within the first housing.
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