公开(公告)号：US09636466B2

公开(公告)日：2017-05-02

申请号：US13688386

申请日：2012-11-29

申请人： Unitract Syringe PTY LTD.

发明人： Craig Stephen Thorley ,  Joseph Hermes Kaal ,  Chris Rafferty ,  Richard Sokolov ,  Ernesto Hueso ,  Huw Wallis ,  Steve Chi Truong

IPC分类号： A61M5/32 ,  A61M5/00 ,  A61M5/315 ,  A61M5/34 ,  A61M5/31 ,  A61M5/50

CPC分类号： A61M5/3232 ,  A61M5/31511 ,  A61M5/3202 ,  A61M5/3234 ,  A61M5/345 ,  A61M2005/3103 ,  A61M2005/323 ,  A61M2005/3231 ,  A61M2005/3238 ,  A61M2005/5073 ,  A61M2205/581 ,  A61M2205/582 ,  Y10T29/49826

摘要： A retractable syringe, plunger and releasable needle assembly including a retractable needle, a needle seal, a retaining member and an ejector member. The retaining member has a mating surface for mounting to a complementary mating surface of an interior wall of a syringe barrel. The plunger comprises a plunger outer, a plunger rod frangibly connected to a controlling member, a spring and a unitary plunger seal capable of engaging the retractable needle, wherein the plunger rod, plunger outer and the controlling member co-operate to releasably maintain the spring in an initially compressed state. After delivery of fluid contents of the syringe, the plunger forces the ejector member to release the retractable needle from the retaining member. Decompression of the spring at the end of depression of the plunger facilitates retraction of the retractable needle when engaged with the unitary plunger seal.

公开(公告)号：US20130338602A1

公开(公告)日：2013-12-19

申请号：US13688386

申请日：2012-11-29

申请人： Unitract Syringe PTY LTD.

发明人： Craig Stephen Thorley ,  Joseph Hermes Kaal ,  Chris Rafferty ,  Richard Sokolov ,  Ernesto Hueso ,  Huw Wallis ,  Steve Chi Truong

IPC分类号： A61M5/32

CPC分类号： A61M5/3232 ,  A61M5/31511 ,  A61M5/3202 ,  A61M5/3234 ,  A61M5/345 ,  A61M2005/3103 ,  A61M2005/323 ,  A61M2005/3231 ,  A61M2005/3238 ,  A61M2005/5073 ,  A61M2205/581 ,  A61M2205/582 ,  Y10T29/49826

摘要： A retractable syringe, plunger and releasable needle assembly including a retractable needle, a needle seal, a retaining member and an ejector member. The retaining member has a mating surface for mounting to a complementary mating surface of an interior wall of a syringe barrel. The plunger comprises a plunger outer, a plunger rod frangibly connected to a controlling member, a spring and a unitary plunger seal capable of engaging the retractable needle, wherein the plunger rod, plunger outer and the controlling member co-operate to releasably maintain the spring in an initially compressed state. After delivery of fluid contents of the syringe, the plunger forces the ejector member to release the retractable needle from the retaining member. Decompression of the spring at the end of depression of the plunger facilitates retraction of the retractable needle when engaged with the unitary plunger seal.

摘要翻译： 可伸缩的注射器，柱塞和可释放的针组件，其包括可缩回的针，针密封件，保持构件和顶出件。 保持构件具有用于安装到注射器筒的内壁的互补配合表面的配合表面。 柱塞包括柱塞外部，易于连接到控制构件的柱塞杆，弹簧和能够接合可缩回针的​​单一柱塞密封件，其中柱塞杆，柱塞外部和控制构件协作以可释放地保持弹簧 处于初始压缩状态。 在输送注射器的流体内容物之后，柱塞迫使顶出部件从保持件释放可伸缩的针。 在柱塞压下结束时，弹簧的减压有助于可缩回针在与单一柱塞密封件接合时的缩回。