公开(公告)号：US09642970B2

公开(公告)日：2017-05-09

申请号：US12827548

申请日：2010-06-30

申请人： Thomas J. Shaw ,  Ni Zhu

发明人： Thomas J. Shaw ,  Ni Zhu

IPC分类号： A61M5/32 ,  A61M5/50

CPC分类号： A61M5/3234 ,  A61M5/508 ,  A61M2005/3239

摘要： A medical device having a barrel, a retractable needle, a needle retraction assembly and a plunger, the needle retraction assembly including and being held inside the barrel prior to retraction at least in part by a retainer member contacting the barrel, the plunger comprising a plunger seal with an body having at least a portion that is rearwardly moveable relative to the plunger and an elastomeric web that seals a retraction cavity inside the plunger prior to retraction of the needle, the retainer member and the plunger seal each cooperating with an inside wall of the barrel to provide a sealed liquid containment chamber inside the device.

公开(公告)号：US09320856B2

公开(公告)日：2016-04-26

申请号：US14516571

申请日：2014-10-16

申请人： Intuitive Creations Pte. Ltd

发明人： Teoh Hwa Ang

IPC分类号： A61M5/32 ,  A61M5/34 ,  A61M5/50

CPC分类号： A61M5/3202 ,  A61M5/3234 ,  A61M5/347 ,  A61M5/508 ,  A61M5/5086 ,  A61M2005/3239 ,  A61M2205/586

摘要： A retractable syringe is proposed having a cutting head mounted on a plunger of the syringe. When the plunger is advanced to expel fluid from the syringe, the cutting crown cuts a retention mechanism which holds a needle unit of the syringe, allowing a drive mechanism to drive the needle unit into the syringe. The cutting crown is shaped to reduce the force which has to be applied to cut the retention mechanism. Furthermore, a disposable needle assembly for attachment to a syringe unit is proposed. The disposable needle assembly has a needle and connector element for connecting the needle to the syringe unit. The connector element encircles the needle and has a thread on its outer surface for mating with the syringe unit.

摘要翻译： 提出了一种可伸缩注射器，其具有安装在注射器的柱塞上的切割头。 当柱塞前进以从注射器排出流体时，切割冠切割保持注射器的针单元的保持机构，允许驱动机构将针单元驱动到注射器中。 切割冠被成形为减小必须施加的切割保持机构的力。 此外，提出了用于附接到注射器单元的一次性针组件。 一次性针组件具有用于将针连接到注射器单元的针和连接器元件。 连接器元件围绕针并且在其外表面上具有用于与注射器单元配合的螺纹。

公开(公告)号：US20140163518A1

公开(公告)日：2014-06-12

申请号：US13711771

申请日：2012-12-12

申请人： Jack Epstein

发明人： Jack Epstein

IPC分类号： A61M5/32

CPC分类号： A61M5/3234 ,  A61M5/3202 ,  A61M5/3287 ,  A61M2005/3239 ,  A61M2005/3267

摘要： A safety syringe which includes an outer casing having a closed and an open end, a transition chamber having a closed and an open end, a spring assembly, and a plunger. The transition chamber is held for sliding movement within the outer casing and defines a needle concealment chamber, while the plunger defines a needle receiving chamber and is held for sliding movement within the transition chamber. A liquid medicine chamber within the transition chamber holds a precharged quantity of injectable medicine. The spring assembly is moved from its initial compressed configuration, including a needle within a needle containment chamber, when movement of the plunger and the transition chamber are moved together within the outer casing to extend the needle from a needle exit hole in the end of the outer casing. The medicine is ejected from the needle upon further movement of the plunger within the transition chamber, after which further movement of the plunger within the transition chamber retracts the needle to eject safely into the needle receiving chamber.

摘要翻译： 一种安全注射器，其包括具有封闭和开放端的外壳，具有封闭和开放端的过渡室，弹簧组件和柱塞。 过渡室被保持用于在外壳内滑动运动并且限定针隐藏室，同时柱塞限定针接收室并保持用于在过渡室内的滑动运动。 过渡室内的液体药物腔室容纳预注射量的可注射药物。 当活塞和过渡室在外壳内一起移动时，弹簧组件从其初始压缩构型移动，包括针头在针收容室内，从而将针从针出口孔延伸出来 外壳。 当柱塞在过渡腔室内进一步移动时，药物从针头中排出，之后柱塞在过渡腔室内的进一步移动使针头退回，从而将针头安全地推入针接收室。

公开(公告)号：US20120232482A1

公开(公告)日：2012-09-13

申请号：US13413572

申请日：2012-03-06

申请人： Richard Caizza

发明人： Richard Caizza

IPC分类号： A61M5/50 ,  A61M5/34

CPC分类号： A61M5/3234 ,  A61M5/1782 ,  A61M5/3295 ,  A61M5/346 ,  A61M5/347 ,  A61M2005/3239

摘要： A retractable needle syringe having a segmented retaining ledge at the distal end of the syringe barrel. The retaining ledge has uniformly spaced members configured to enable the retaining ring to break from the needle stem with a reduced plunger engagement force, which provides an improved tactile feeling of the syringe plunger and comfort of use. The segmented retaining ledge also makes it easier to install the needle stem and retaining ring in the barrel distal end, such that it snaps into place therepast with less axial force.

摘要翻译： 一种可伸缩的针头注射器，其在注射器筒的远端具有分段的保持凸缘。 保持凸缘具有均匀间隔的构件，其被构造成使得保持环能够以减小的柱塞接合力从针杆断开，这提供了针筒柱塞的改进的触觉和舒适的使用。 分段保持凸缘还使得将针杆和保持环安装在枪管远端更容易，使得其以较小的轴向力咬合到位。

公开(公告)号：US20120232481A1

公开(公告)日：2012-09-13

申请号：US13413567

申请日：2012-03-06

申请人： Richard Caizza

发明人： Richard Caizza

IPC分类号： A61M5/34 ,  A61M5/50

CPC分类号： A61M5/3234 ,  A61M5/1782 ,  A61M5/3295 ,  A61M5/346 ,  A61M5/347 ,  A61M2005/3239

摘要： A retractable needle syringe, including a needle stem and breakable ring having a plurality of fingers and grooves. These fingers and grooves are configured to mate with a plurality of ribs and grooves in a syringe barrel distal end to provide anti-rotation of the needle stem with respect to a syringe barrel. This anti-rotation feature restricts rotation of the needle stem when attaching or exchanging needles to prevent unintended retraction.

摘要翻译： 一种可伸缩的针头注射器，包括针杆和具有多个指状物和凹槽的可断裂环。 这些指状物和凹槽构造成与注射器筒远端中的多个肋和凹槽配合，以提供针杆相对于注射器筒的抗旋转。 这种防旋转功能在连接或更换针头时限制针杆的旋转，以防止意外收回。

公开(公告)号：US20110213304A1

公开(公告)日：2011-09-01

申请号：US13100838

申请日：2011-05-04

申请人： Steven SCHRAGA

发明人： Steven SCHRAGA

IPC分类号： A61M5/50

CPC分类号： A61M5/3234 ,  A61M5/002 ,  A61M5/31515 ,  A61M5/502 ,  A61M5/508 ,  A61M2005/3123 ,  A61M2005/3231 ,  A61M2005/3235 ,  A61M2005/3236 ,  A61M2005/3239

摘要： An injection device including a barrel, a hollow plunger having a portion structured and arranged to move within the barrel, a needle unit, and a safety system that one of automatically causes the needle unit to retract into the plunger when the plunger reaches a substantially fully depressed position. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

摘要翻译： 一种注射装置，包括筒体，中空柱塞，其具有构造和布置成在筒内移动的部分，针单元和安全系统，当柱塞达到基本上完全相反时，自动使针单元缩回到柱塞中 沮丧的地位。 本摘要不旨在限定说明书中公开的发明，也不旨在以任何方式限制本发明的范围。

公开(公告)号：US20100286604A1

公开(公告)日：2010-11-11

申请号：US12837228

申请日：2010-07-15

申请人： Thomas J. Shaw

发明人： Thomas J. Shaw

IPC分类号： A61M5/32 ,  A61M5/30

CPC分类号： A61M5/3234 ,  A61M5/347 ,  A61M5/508 ,  A61M2005/3118 ,  A61M2005/3239

摘要： This invention relates to medical devices useful for infusion therapy and, more particularly, to a syringe that can be selectively used with a retractable needle or with frontal attachment devices such as luer hubs, valves or other connectors in needleless systems.

摘要翻译： 本发明涉及可用于输注治疗的医疗装置，更具体地说，涉及一种注射器，该注射器可以与可伸缩的针头或具有诸如鲁尔轮毂，阀门或无针系统中的其它连接器的正面附接装置选择性地一起使用。

公开(公告)号：US20080255514A1

公开(公告)日：2008-10-16

申请号：US12102177

申请日：2008-04-14

申请人： Andrew Chase Crapser

发明人： Andrew Chase Crapser

IPC分类号： A61M5/50

CPC分类号： A61M5/28 ,  A61M5/322 ,  A61M5/344 ,  A61M5/348 ,  A61M5/502 ,  A61M2005/3104 ,  A61M2005/3128 ,  A61M2005/31508 ,  A61M2005/3206 ,  A61M2005/3239

摘要： A safety syringe with a plunger in which a needle is attached to a mobile component that is mechanically not linked to the plunger but is slidable within the barrel of the syringe and has a valve mechanism for opening a port connecting the interior volume between the mobile component and the plunger to the needle bore. The mobile component is first pushed by the plunger to the bottom of the barrel so that the needle extends normally, the mobile component is mechanically locked in place for use conventionally, and the needle bore is opened. After use, the needle bore may be closed, the lock released, and the mobile component and attached needle sucked back into the barrel by pulling the plunger out, retracting the used needle into the barrel. There may be a plunger lock. There may be an upper barrel locking position for the mobile component.

摘要翻译： 一种具有柱塞的安全注射器，其中针被附接到机械地未连接到柱塞的可移动部件，但是可以在注射器的筒体内滑动，并且具有阀机构，用于打开将内部容积连接在移动部件 和柱塞到针孔。 移动部件首先被柱塞推到筒的底部，使得针正常延伸，移动部件被机械地锁定在适当位置以便常规使用，并且打开针孔。 使用后，针孔可以闭合，锁释放，并且可移动部件和连接的针通过拉出柱塞而被吸回到筒中，将使用的针收回到筒中。 可能有一个柱塞锁。 移动部件可能存在上筒锁定位置。

公开(公告)号：US6090077A

公开(公告)日：2000-07-18

申请号：US843050

申请日：1997-04-25

申请人： Thomas J. Shaw

发明人： Thomas J. Shaw

IPC分类号： A61M5/178 ,  A61M5/32 ,  A61M5/50 ,  A61M5/00

CPC分类号： A61M5/3234 ,  A61M2005/3235 ,  A61M2005/3236 ,  A61M2005/3239 ,  A61M5/502 ,  A61M5/508

摘要： A tamperproof retractable non-reusable syringe has a one piece hollow outer body with a barrel for a slidable plunger, a transition zone and a smaller diameter nose portion. An elongated needle holder and spring combination is installable from the rear of the outer body, guided into the nose portion and held by cooperating inwardly and outwardly facing surfaces oriented in the direction of retraction at the most constricted part of the transition zone where the nose begins. The plunger has an opening with a dislodgable stopper for receiving parts of the retraction mechanism. The stopper and the head of the needle holder are of significantly reduced diameter from the injection fluid chamber to resist blowing out prematurely. In one embodiment the head of the needle holder is surrounded by a separable retainer member which is slidingly removed by contact with the tip of the plunger after the stopper is mostly or fully removed to avoid cumulation of force required for retraction after the injection. In a second embodiment the head of the needle holder is clamped and held by constricting forces imposed by stress on the outer body induced by interference fit. Release occurs by slight expansion on the barrel by contact of the plunger tip with a small internal ramp in the outer barrel. Both embodiments have a plunger cap configured to enter an opening in the outer body to provide an additional tamperproof feature. The retraction cavity is provided with venting structures to assure that all uninjected fluid is retained within the syringe body.

摘要翻译： 防篡改的可伸缩不可重复使用的注射器具有一体式中空外体，其具有用于滑动柱塞，过渡区和较小直径鼻部的筒。 细长的针保持器和弹簧组合件可从外体的后部安装，被引导到鼻部，并且通过配合的向内和向外的表面保持，该表面在鼻子开始的过渡区域的最狭窄的部分处被缩回的方向 。 柱塞具有带有可拆卸止动件的开口，用于容纳回缩机构的部分。 针架的止动器和头部从注射流体室直径显着减小，以防过早吹出。 在一个实施例中，针保持器的头部被可分离的保持器构件围绕，该保持构件在止动器被大部分或完全移除之后通过与柱塞的尖端接触而被滑动地移除，以避免在注射之后累积所需的力。 在第二实施例中，针保持器的头部被夹紧并通过受到由过盈配合引起的外部应力施加的力的夹紧而保持。 释放通过柱塞尖端与外筒中的小内部斜坡的接触而在筒上的轻微膨胀。 两个实施例都具有被配置成进入外部主体中的开口以提供另外的防篡改特征的柱塞帽。 回缩腔设置有排气结构，以确保所有未注射的流体都保持在注射器体内。

公开(公告)号：US11712524B2

公开(公告)日：2023-08-01

申请号：US16969946

申请日：2019-02-13

申请人： Becton Dickinson France

发明人： Frédéric Perot ,  Gilles Bernede ,  Simon Gaschet

IPC分类号： A61M5/315 ,  A61M5/31 ,  A61M5/32 ,  A61M5/20 ,  A61M5/28

CPC分类号： A61M5/31581 ,  A61M5/3129 ,  A61M5/3202 ,  A61M5/2033 ,  A61M5/28 ,  A61M5/3232 ,  A61M5/3234 ,  A61M5/3243 ,  A61M5/3257 ,  A61M2005/3239 ,  A61M2205/583

摘要： A medical injection device for supporting a medical container comprising a barrel and a needle tip extending from a distal end of the barrel, comprising: safety shield, first ring configured to be coupled to the medical container and configured to be biased in a proximal direction relative to the safety shield from an injection position in which a needle tip extends out of the safety shield to a safety position in which the needle tip is covered by the safety shield, and second ring rotatably movable relative to the first ring between locking position wherein the second ring maintains the first ring in the injection position and an unlocking position wherein the second ring releases the first ring thereby allowing the first ring to be urged into the safety position.