Lancet apparatus and methods
    1.
    发明授权
    Lancet apparatus and methods 失效
    柳叶刀装置及方法

    公开(公告)号:US5951582A

    公开(公告)日:1999-09-14

    申请号:US84112

    申请日:1998-05-22

    摘要: A one-time-use, self-powered, restricted entry lancet apparatus which provides a smaller incision in a surface or epidermal layers of a lancing site than in subsurface or dermal layers. Two embodiments of the invention are disclosed. Generally, each embodiment includes a housing, a blade component, a rotary spring and an actuator. The blade generally has a proximal portion and a distal section. The proximal portion is disposed within the housing and is displaced laterally in a first direction during a lancing procedure. During the lancing procedure, the distal section is extended from the housing through an open exit slot and is rotated about an abutment member of the exit slot to be laterally displaced in a direction opposite the first direction. This rotation about the abutment results in an incision pattern which has a smaller cut in the epidermis than in the dermis. Thus, surface trauma is reduced while a broad cut is made in capillary rich regions of the dermal layers.

    摘要翻译: 一种一次性的,自供电的限制性进入刺血针装置,其在穿刺部位的表面或表皮层中提供比在地下或皮肤层中更小的切口。 公开了本发明的两个实施例。 通常,每个实施例包括壳体,叶片部件,旋转弹簧和致动器。 叶片通常具有近端部分和远端部分。 近端部分设置在壳体内并且在穿刺过程期间沿第一方向横向移位。 在穿刺过程中,远端部分从壳体延伸穿过开放的出口槽并围绕出口槽的邻接构件旋转以沿与第一方向相反的方向横向移位。 关于邻接的这种旋转导致切割图案在表皮中具有比在真皮中更小的切口。 因此,在皮肤层的毛细血管富集区域进行广泛的切割时,表面损伤减少。

    Self retracting needle apparatus and method for phlebotomy
    7.
    发明授权
    Self retracting needle apparatus and method for phlebotomy 失效
    自动收缩针装置和静脉切开术的方法

    公开(公告)号:US06063040A

    公开(公告)日:2000-05-16

    申请号:US8036

    申请日:1998-01-16

    摘要: A practical, low cost safety device for phlebotomy. Preparation for operation of the device involves elongating an otherwise shortened-for-transport apparatus to extend a medical assembly and needle from a housing for use in a medical procedure. The act of elongating energizes an energy storing component and cocks a releasable latch. The energy storing component is preferably a vacuum drawing plunger and tube combination. When the medical procedure is complete, distortion of a portion of the housing causes powered retraction of the needle. After retraction, the needle is fully contained, permitting the device to be laid aside without fear of an inadvertent needle stick. The housing comprises a proximal barrel and a distal needle containment section. The barrel comprises a sampling tube stopper piercing cannula. The distal section is disposed in-line, but off-axis from the barrel and comprises an enclosed conduit which communicates with the cannula and with a pathway to the medical needle through the medical needle assembly. Construction of the device requires only three injection molded parts, the housing, a needle hub and a needle cover. Further, as the needle is retracted, communication from the conduit is severed and the pathway to the needle is closed to reduce likelihood of blood spatter. The conduit may be used as a blood flash visualization chamber.

    摘要翻译: 一种实用,低成本的静脉注射安全装置。 用于装置的操作的准备包括延长另一种缩短的运输装置以将医疗组件和针从壳体延伸以用于医疗过程。 伸长的动作激励储能部件并使可释放的闩锁旋转。 储能部件优选为真空拉拔柱塞和管组合。 当医疗程序完成时,壳体的一部分的变形导致针的电力回缩。 收回后,针头完全收纳,允许将装置放在一边,而不用担心无意的针刺。 外壳包括近端针筒和远端针头容纳部分。 枪管包括一个取样管塞刺穿套管。 远端部分成直线设置,但是离开筒体离轴,并且包括与套管连通并且通过医疗针组件到医疗针的通路的封闭导管。 该装置的构造仅需要三个注射成型部件,壳体,针座和针头盖。 此外,当针回缩时,来自导管的连通被切断,并且到针的路径被关闭以减少飞溅的可能性。 导管可以用作血液闪光可视化室。