公开(公告)号：US10391240B2

公开(公告)日：2019-08-27

申请号：US15400200

申请日：2017-01-06

Applicant: Becton, Dickinson and Company

Inventor： Lee Hoong Sim ,  Tiong Yee Sim

IPC: A61M5/158 ,  A61B5/15 ,  A61B5/154 ,  A61B5/153 ,  A61M5/32 ,  A61B5/155

Abstract: A needle assembly includes a housing having proximal and distal ends, an IV cannula projecting distally from the housing, and an IV shield having an engagement. The housing has a shield seat and the IV cannula has a distal tip. The IV shield has a pre-use position where the IV shield covers the distal tip of the IV cannula and the engagement is disengaged from the shield seat, and a use position where the engagement is engaged with the shield seat and the IV shield is adapted to move between a non-shielded position, in which the distal tip is exposed, and a shielded position, in which the distal tip is shielded by the IV shield.

公开(公告)号：US20170112999A1

公开(公告)日：2017-04-27

申请号：US15400200

申请日：2017-01-06

Applicant: Becton, Dickinson and Company

Inventor： Lee Hoong Sim ,  Tiong Yee Sim

IPC: A61M5/158 ,  A61B5/153 ,  A61B5/15

CPC classification number: A61M5/158 ,  A61B5/15003 ,  A61B5/150267 ,  A61B5/150389 ,  A61B5/150488 ,  A61B5/150496 ,  A61B5/150572 ,  A61B5/150587 ,  A61B5/150595 ,  A61B5/150618 ,  A61B5/150633 ,  A61B5/150656 ,  A61B5/150664 ,  A61B5/150717 ,  A61B5/150732 ,  A61B5/153 ,  A61B5/1545 ,  A61B5/155 ,  A61M5/3216

Abstract: A needle assembly includes a housing having proximal and distal ends, an IV cannula projecting distally from the housing, and an IV shield having an engagement. The housing has a shield seat and the IV cannula has a distal tip. The IV shield has a pre-use position where the IV shield covers the distal tip of the IV cannula and the engagement is disengaged from the shield seat, and a use position where the engagement is engaged with the shield seat and the IV shield is adapted to move between a non-shielded position, in which the distal tip is exposed, and a shielded position, in which the distal tip is shielded by the IV shield.

公开(公告)号：US20140052022A1

公开(公告)日：2014-02-20

申请号：US14062987

申请日：2013-10-25

Applicant: Becton, Dickinson and Company

Inventor： Alvin Chee Leong Tan ,  Tiong Yee Sim ,  Jon Yaohan Moh ,  William G. Saulenas ,  Robert G. Ellis ,  James C. Schneider ,  Steven Mark White

IPC: A61B5/15 ,  A61B5/153

CPC classification number: A61B5/150251 ,  A61B5/1422 ,  A61B5/1438 ,  A61B5/15003 ,  A61B5/150213 ,  A61B5/150221 ,  A61B5/150259 ,  A61B5/150389 ,  A61B5/150496 ,  A61B5/150572 ,  A61B5/150664 ,  A61B5/150732 ,  A61B5/153 ,  A61B5/154 ,  A61B5/1545

Abstract: A needle assembly includes a transparent or translucent housing with a fluid inlet and outlet end, a flashback chamber, and a venting mechanism therebetween. The venting mechanism includes a blocking member to control the fluid flow in the venting mechanism so that it flows along the longest path through the vent. Substantially axially aligned inlet and outlet cannulas extend from the housing and communicate with the chamber. A sealable sleeve covers the external end of the outlet cannula. Relative volumes of the cannulas, the chamber, and the sleeve are selected to provide rapid reliable flashback indicative of venous entry with an internal vent positioned within the housing to divide the interior into first and second chambers, with the second chamber being adapted to maintain a negative pressure therein relative to the external environment so as to inhibit leakage of blood from the needle tip on withdrawal from the patient.

Abstract translation: 针组件包括具有流体入口和出口端的透明或半透明壳体，闪回室以及它们之间的排气机构。 排气机构包括阻挡构件以控制通气机构中的流体流动，使得其沿着最长路径流过通气孔。 基本上轴向对准的入口和出口插管从壳体延伸并与腔室连通。 可密封套筒覆盖出口插管的外端。 插管，腔室和套管的相对体积被选择以提供指示静脉入口的快速可靠闪回，其中位于壳体内的内部通气口将内部分隔成第一和第二腔室，第二腔室适于维持 相对于外部环境的负压，以便在从患者身体拔出时抑制血液从针尖泄漏。