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1. 发明授权

US5368046A Bone marrow needle assembly 失效
标题翻译：骨髓针组装
公开(公告)号：US5368046A
公开(公告)日：1994-11-29
申请号：US36474
申请日：1993-03-24
申请人： Frank A. Scarfone , David Turkel , Alan L. Weisenborn
发明人： Frank A. Scarfone , David Turkel , Alan L. Weisenborn
IPC分类号： A61B10/00 , A61B10/02
CPC分类号： A61B10/025 , A61B2010/0258
摘要： A bone marrow needle assembly includes a cannula housing supporting a cannula having a sharp distal end. The cannula housing is provided with a central throughbore in fluid communication with the cannula and with an ergonomic handle having a curved distal surface. A female luer lock fluid coupling is provided in the housing at the proximal end of the throughbore and within the periphery of the curved handle. A trocar is located within the cannula and extends through the luer lock and the throughbore. The trocar has a cap which extends over the luer lock and is rounded so that a substantially continuous rounded surface is presented by the semi-circular handle and the trocar cap. The distal end of the housing is provided with a threaded portion which receives a locking nut and a depth stop. The depth stop has a mating interior threaded bore which couples with the threaded distal portion of the housing so that the depth stop may be rotated to adjust the effective piercing length of the cannula. The locking nut is rotated into a locking position against the depth stop to secure the depth stop in a selected position.
摘要翻译：骨髓针组件包括支撑具有尖锐远端的插管的插管壳体。插管壳体设置有与套管流体连通的中心穿孔，并具有具有弯曲远端表面的符合人体工程学的手柄。在通孔的近端处并且在弯曲手柄的周边内的壳体中设置有女性鲁尔锁定液体联接器。套管针位于插管内并延伸穿过鲁尔锁和通孔。套针针头具有一个帽盖，该盖子在路厄尔锁上延伸，并且是圆形的，使得基本上连续的圆形表面由半圆形手柄和套管针帽呈现。壳体的远端设置有接收锁定螺母和深度止挡件的螺纹部分。深度限位器具有匹配的内螺纹孔，其与壳体的螺纹远端部分联接，使得深度限位器可以旋转以调节套管的有效穿刺长度。锁定螺母被旋转到抵靠深度挡块的锁定位置，以将深度挡块固定在选定位置。

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