Disposable syringe
    11.
    发明申请
    Disposable syringe 审中-公开
    一次性注射器

    公开(公告)号:US20070005015A1

    公开(公告)日:2007-01-04

    申请号:US11320927

    申请日:2005-12-29

    IPC分类号: A61M5/00

    摘要: A disposable syringe includes a needle assembly having a needle seat retained in a barrel by a grip member to fix a needle cannula, a tubular plunger movable in the barrel toward the needle seat during an injection course, and a coupling member having a retained shank in frictional engagement with the plunger, and an anchored portion disposed outwardly of the plunger to engage a rear anchoring portion of the needle seat when the coupling member is moved forwardly. When the plunger is moved further forward to cause the plunger to move relative to the coupling member, the retained shank is released to enable the needle assembly to retract into the plunger by means of a biasing member. A guiding sleeve is sleeved on the needle seat, and can be forced to extend between the needle seat and the grip member so as to decrease the frictional force therebetween for ensuring successful retraction of the needle assembly.

    摘要翻译: 一次性注射器包括针组件,其具有通过夹持构件固定在针筒中的针座,以固定针插管;在注射过程期间可在筒体中朝向针座移动的管状柱塞,以及具有保持的柄部的联接构件 与柱塞的摩擦接合,以及当联接构件向前移动时,设置在柱塞外侧的锚定部分,以接合针座的后部固定部分。 当柱塞进一步向前移动以使柱塞相对于联接构件移动时,保持的柄被释放以使得针组件能够通过偏置构件缩回到柱塞中。 引导套筒套在针座上,并且可以被迫在针座和握持构件之间延伸,以便减小它们之间的摩擦力,以确保针组件的成功缩回。

    Fluid-handling device
    13.
    发明申请
    Fluid-handling device 审中-公开
    流体处理装置

    公开(公告)号:US20060129096A1

    公开(公告)日:2006-06-15

    申请号:US10524163

    申请日:2003-09-25

    申请人: Alastair Wright

    发明人: Alastair Wright

    IPC分类号: A61M5/00 A61M5/32

    摘要: A pre-filled hypodermic syringe adapted for use with a retractable-type needle unit (18). The syringe has a barrel (10) provided with a piston member (14). The piston member (14) includes a plastics portion (30) mounting a dislodgeable blocking portion (36) of chemically inert material in such a way that the plastics portion (30) is not in contact with the pre-filled contents of the syringe.

    摘要翻译: 适于与可伸缩型针单元(18)一起使用的预填充皮下注射器。 注射器具有设置有活塞构件(14)的筒(10)。 活塞构件(14)包括塑料部分(30),其安装化学惰性材料的可移除阻挡部分(36),使得塑料部分(30)不与注射器的预填充内容物接触。

    Safe syringe with automatic retractable needle
    14.
    发明申请
    Safe syringe with automatic retractable needle 审中-公开
    带自动伸缩针的安全注射器

    公开(公告)号:US20060084914A1

    公开(公告)日:2006-04-20

    申请号:US10885792

    申请日:2004-07-08

    申请人: Chung-Hao Tung

    发明人: Chung-Hao Tung

    IPC分类号: A61M5/00 A61M5/32

    摘要: The safe syringe comprises a cylinder, a needle seat and a pusher plunger. The needle seat is firmly connected to the front inner side of the cylinder, the needle seat has on its bottom a first protruding piercing portion, a chamber with a positive pressure is formed between the bottom of the needle seat and the front end of the cylinder; the pusher plunger is a hollow rod having a chamber therein with a negative pressure, the rod has a second piercing portion on the outer wall on its front end, and a piston envelops the front surface of the rod and the outer wall. Thereby, when the plunger is pushed to the front end of the cylinder, the first piercing portion pierces and breaks the piston and the front surface of the rod, the second piercing portion pierces forwards through and cut out the bottom of the needle seat to make communication of the two chambers, thus the bottom of the needle seat is drawn into the plunger together with the needle by changing of pressure.

    摘要翻译: 安全注射器包括气缸,针座和推杆柱塞。 针座牢固地连接到气缸的前内侧,针座在其底部具有第一突出的穿刺部分,在针座的底部和气缸的前端之间形成具有正压力的腔室 ; 推杆柱塞是具有负压的室中空杆,杆在其前端的外壁上具有第二穿孔部分,活塞包围杆的前表面和外壁。 因此,当柱塞被推到缸的前端时,第一穿刺部分刺穿并破坏活塞和杆的前表面,第二穿刺部分穿过并切出针座的底部, 两个腔室的连通,因此通过改变压力将针座的底部与针头一起拉入柱塞。

    Disposable safety syringe
    15.
    发明申请
    Disposable safety syringe 失效
    一次性安全注射器

    公开(公告)号:US20040087907A1

    公开(公告)日:2004-05-06

    申请号:US10285904

    申请日:2002-11-01

    IPC分类号: A61M005/315

    摘要: A safety syringe 10 includes a generally tubular body 14 having a needle end 18 and plunger end 22, needle 38 and retractable needle seat 30, two-way valve 36, plunger 42, stopper 62, piston 52, and rear plunger seal 44. During use, the plunger may be moved to create a vacuum in the plunger. The user then moves the plunger toward the needle end, pressurizing a vial, then pulls backward to a selected position corresponding to the desired volume of fluid to be withdrawn. At the conclusion of the injection stroke, the piston is disengaged from the plunger. The vacuum within the plunger retracts the needle safely into the tubular body.

    摘要翻译: 安全注射器10包括具有针端18和柱塞端22,针38和可缩回针座30,二通阀36,柱塞42,止动件62,活塞52和后柱塞密封件44的大体管状体14。 使用时,柱塞可以移动以在柱塞中产生真空。 使用者然后将柱塞移动到针端,对小瓶加压,然后向后拉动到与要取出的所需体积的液体相对应的选定位置。 在注射行程结束时,活塞与柱塞脱离。 柱塞内的真空度将针头安全地缩回到管状体内。

    Syringe
    16.
    发明授权
    Syringe 失效
    注射器

    公开(公告)号:US5658257A

    公开(公告)日:1997-08-19

    申请号:US129172

    申请日:1993-10-18

    申请人: Louis Ryles

    发明人: Louis Ryles

    IPC分类号: A61M5/31 A61M5/32 A61M5/50

    摘要: A syringe for administering a medicament having a barrel provided with a needle attachment member to which a needle may be mounted and which is retained by a catch at one end of the barrel, and a plunger which is movable in the barrel to expel medicament through the needle attachment member and needle. The plunger is hollow and contains a vacuum and is provided with a gripping member at one end which closes one end of the plunger and which when the plunger is advanced can engage the needle attachment member to releases its catch and withdraw the needle attachment member and mounted needle into the plunger.

    摘要翻译: PCT No.PCT / AU92 / 00178 Sec。 371日期:1993年10月18日 102(e)日期1993年10月18日PCT提交1992年4月21日PCT公布。 公开号WO92 / 18186 日期:1992年10月29日一种用于给药药物的注射器,所述药剂具有设置有针安装构件的镜筒,针可以安装在针上,并且在针筒的一端由卡扣保持,以及可在镜筒中移动的柱塞 以通过针安装构件和针排出药物。 柱塞是中空的并且包含真空并且在一端设置有夹紧构件,该夹持构件封闭柱塞的一端,并且当柱塞前进时,该夹紧构件可以接合针安装构件以释放其钩子并且将针安装构件 针进入柱塞。

    Intravenous catheter insertion device with retractable needle
    17.
    发明授权
    Intravenous catheter insertion device with retractable needle 失效
    静脉导管插入装置带有伸缩针

    公开(公告)号:US5407431A

    公开(公告)日:1995-04-18

    申请号:US127962

    申请日:1993-09-27

    摘要: A hypodermic injection system (7) with a retractable needle (9) wherein the needle (9) retracts within an interior cavity of a syringe plunger (59), such that the needle (9) is confinedly held within the plunger (59). A cylindrical spring housing assembly (21) has resilient fingers (23) which captures a spring (15) biasly holding a needle holder (11) against the retaining force of resilient fingers (23). The plunger (59) has a frangible end (65), which dissociates when the outwardly tapered shoulders (68) spread the resilient fingers (23), allowing the coiled spring (15) to eject the needle (9) and its holder (11) into the interior cavity (71) of the plunger (59). A body fluid sampling embodiment employs the same functional elements except the plunger (59") is shorter and contains a linking (137) that communicates with a vacuum container (147). The container allows fluid sampling and provides the structure to release the spring (15 ") retracting the needle (9"). The retractable needle embodiment is also employed with an insertion needle (9'") that guides a catheter tube (154) below the skin of a patient and into the vein, and allows retraction of the insertion needle (9'") thereby avoiding accidental pricking of the health care worker by the insertion needle (9'").

    摘要翻译: 一种具有伸缩针(9)的皮下注射系统(7),其中针(9)在注射器柱塞(59)的内腔内缩回,使得针(9)被限制地保持在柱塞(59)内。 圆柱形弹簧壳体组件(21)具有弹性指状物(23),其克服弹性指状物(23)的保持力捕获偏置地保持针保持器(11)的弹簧(15)。 柱塞(59)具有易碎端(65),当向外渐缩的肩部(68)伸展弹性指状物(23)时,其解体,允许螺旋弹簧(15)弹出针(9)及其保持器(11) )到柱塞(59)的内部空腔(71)中。 体液取样实施例采用相同的功能元件,除了柱塞(59“)较短,并且包含与真空容器(147)连通的连接件(137)。 容器允许流体取样并提供结构以释放使针(9“)缩回的弹簧(15”)。 可伸缩针的实施例还与插入针(9“)一起使用,该插入针将患者皮肤下方的导管(154)引导到静脉中,从而允许插入针(9”')缩回 避免插入针(9“'意外刺伤医护人员)。

    Nonreusable syringe with safety indicator
    18.
    发明授权
    Nonreusable syringe with safety indicator 失效
    带有安全指示器的不可重复使用的注射器

    公开(公告)号:US5267961A

    公开(公告)日:1993-12-07

    申请号:US955842

    申请日:1992-10-02

    申请人: Thomas J. Shaw

    发明人: Thomas J. Shaw

    IPC分类号: A61M5/32 A61M5/00

    摘要: A nonreusable syringe is provided having an automatically retracting hypodermic needle to prevent accidental injury after injection or undesirable reuse of the syringe. The needle is retracted by a spring located behind the syringe piston and disposed to prevent re-extension of the needle after use. A locking mechanism holds the needle in position for injection. The piston includes means to release the locking mechanism as injection is completed to automatically retract the needle into the syringe. The syringe tip seal is not in frictional contact with the needle, eliminating drag on the needle during retraction. A safety indicator is provided to indicate previous use.

    摘要翻译: 提供了一种不可恢复的注射器,其具有自动缩回的皮下注射针,以防止注射后的意外伤害或注射器的不期望的再次使用。 针通过位于注射器活塞后面的弹簧缩回,并设置成防止使用后针再次伸长。 锁定机构将针保持在注射位置。 活塞包括当注射完成以释放锁定机构以自动将针头缩回注射器的装置。 注射器针头密封件不与针头摩擦接触,消除针头时在针头上的拖动。 提供安全指示器以指示以前的使用。

    Retractable needle hypodermic syringe system
    19.
    发明授权
    Retractable needle hypodermic syringe system 失效
    伸缩针皮下注射器系统

    公开(公告)号:US4994034A

    公开(公告)日:1991-02-19

    申请号:US378275

    申请日:1989-07-11

    摘要: A hypodermic injection system with a retractable needle wherein the needle retracts within the interior cavity of a syringe plunger, so that the needle is safely and confinedly held within the plunger for ease of handling and transport, while remaining safely therein. A cylindrical spring housing has resilient fingers which can capture a coiled spring which biasly holds a needle holder against the retaining force of the resilient fingers. The plunger has a frangible end, which, when engaging the resilient fingers under a pre-determined amount of force, dissociate while remaining inwardly-tapered shoulders spread the resilient fingers, allowing the coiled spring to eject the needle and its holder into the interior cavity of the syringe plunger.

    摘要翻译: 一种具有可缩回针的​​皮下注射系统,其中针在注射器柱塞的内腔内缩回,使得针被安全地并且被限制地保持在柱塞内以便于处理和运输,同时安全地保持在其中。 圆柱形弹簧壳体具有弹性指状物,其可以捕获螺旋弹簧,该螺旋弹簧偏置地保持针架抵抗弹性指状物的保持力。 柱塞具有易碎端,当以预定量的力接合弹性指状物时,其解离,同时保持向内锥形的肩部扩展弹性指状物,允许螺旋弹簧将针及其保持器排出到内腔中 的注射器柱塞。