公开(公告)号：US09474859B2

公开(公告)日：2016-10-25

申请号：US13807445

申请日：2011-06-22

申请人： Matthew Ekman ,  Simon Francis Brereton ,  Thomas Mark Kemp

发明人： Matthew Ekman ,  Simon Francis Brereton ,  Thomas Mark Kemp

IPC分类号： A61M5/32 ,  A61M5/20

CPC分类号： A61M5/2033 ,  A61M5/326 ,  A61M2005/2013 ,  A61M2005/206 ,  A61M2005/2086 ,  A61M2005/3247 ,  A61M2205/581 ,  A61M2205/582 ,  Y10T74/18984

摘要： The invention refers to a shuttering mechanism for controlling translation of a longitudinally moveable component within an elongate housing, the shuttering mechanism comprising at least one set of castellations on the housing and at least one resilient arm associated with the longitudinally moveable component, the resilient arm having a dog resiliently biased towards the castellations so as to engage between or behind the castellations and block the translation, wherein a respective shutter arm is arranged alongside the set of castellations, the shutter arm having a number of consecutive ramped protrusions spaced from each other, wherein the castellations and the ramped protrusions have the same pitch, wherein a profiled surface is formed by the castellations and the ramped protrusions, wherein the shutter arm is moveable in longitudinal direction with respect to the set of castellations, wherein the shutter arm has at least one locking position with its ramped protrusions essentially in phase with the castellations thus allowing the dog of the resilient arm to catch between or behind the castellations and wherein the shutter arm has at least one unlocking position with its ramped protrusions out of phase with the castellations in such a manner that the ramped protrusions prevent the dog from engaging with the castellations or disengage them thus allowing translation of the longitudinally moveable component.

摘要翻译： 本发明涉及一种用于控制细长壳体内的纵向移动部件的平移的快门机构，所述遮蔽机构包括在所述壳体上的至少一组雉and和与所述纵向可移动部件相关联的至少一个弹性臂，所述弹性臂具有 一个朝向雉dog弹性地偏置的狗，以便在雉between之间或之后接合并阻挡平移，其中相应的襟翼臂被布置在cast the组旁边，快门臂具有彼此间隔开的多个连续的倾斜突起，其中 城堡和斜坡突起具有相同的间距，其中通过雉ations和倾斜的突起形成异形表面，其中，快门臂可相对于该组蓖体在纵向方向上移动，其中，快门臂具有至少一个 基本上具有斜坡突起的锁定位置 与雉房同相，从而允许弹性臂的狗抓住在蓖体之间或之后，并且其中快门臂具有至少一个解锁位置，其斜坡突起与雉房异相，使得倾斜的突起防止 狗与雉鸡接合或脱开，从而允许纵向可移动部件的平移。

公开(公告)号：US09283326B2

公开(公告)日：2016-03-15

申请号：US13877492

申请日：2011-10-06

申请人： Thomas Mark Kemp ,  Matthew Ekman

发明人： Thomas Mark Kemp ,  Matthew Ekman

IPC分类号： A61M5/32 ,  A61M5/20

CPC分类号： A61M5/3232 ,  A61M5/2033 ,  A61M5/3202 ,  A61M5/326 ,  A61M2005/2013 ,  A61M2005/206

摘要： The invention refers to an auto-injector and to a method for operating it, the auto-injector comprising of a tubular chassis; a carrier subassembly comprising a tubular carrier slidably arranged in the chassis, the carrier containing a syringe with a hollow injection needle, a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe; a wrap-over trigger sleeve arranged over the distal end (D) of the auto-injector; the trigger sleeve extending at least almost over the whole length of the auto-injector; a control spring arranged around the carrier; first interlock means for coupling a proximal end of the control spring to either the carrier for advancing it for needle insertion or to the chassis for needle retraction; second interlock means arranged for releasing the drive spring for injection; third interlock means arranged for coupling the chassis to the carrier for joint axial translation relative to the trigger sleeve; and fourth interlock means arranged for coupling a distal end of the control spring to either the carrier for needle retraction or to the trigger sleeve otherwise.

摘要翻译： 本发明涉及一种自动注射器及其操作方法，所述自动注射器包括管状底盘; 载体子组件包括可滑动地布置在底架中的管状载体，载体包含具有中空注射针的注射器，驱动弹簧和用于将驱动弹簧的载荷传递到注射器的塞子的柱塞; 一个设置在自动注射器的远端（D）上的包裹触发套筒; 触发套筒至少几乎在自动注射器的整个长度上延伸; 布置在所述托架周围的控制弹簧; 第一互锁装置，用于将控制弹簧的近端联接到载体上，用于将其推进用于针插入;或用于将针头缩回到底架; 第二互锁装置，其布置成用于释放用于喷射的驱动弹簧; 第三互锁装置，被布置成将底盘联接到托架，用于相对于触发套筒的关节轴向平移; 以及第四互锁装置，其布置成用于将控制弹簧的远端联接到用于针头缩回的支架或触发器套筒。

公开(公告)号：US09227016B2

公开(公告)日：2016-01-05

申请号：US13877497

申请日：2011-10-06

申请人： Matthew Ekman ,  Thomas Mark Kemp

发明人： Matthew Ekman ,  Thomas Mark Kemp

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

CPC分类号： A61M5/2033 ,  A61M5/31513 ,  A61M5/3202 ,  A61M5/326 ,  A61M5/3271 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/3247

摘要： The invention relates to an auto-injector for administering a dose of a liquid medicament (M), comprising of an elongate housing arranged to contain a syringe with a hollow needle and a bung for sealing the syringe and displacing the medicament (M), the elongate housing having a distal end (D) and a proximal end (P) with an orifice intended to be applied against an injection site, wherein the syringe is slidably arranged with respect to the housing; spring means capable of, upon activation, pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P) as well as operating the syringe to supply the dose of medicament (M); and activating means arranged to lock the spring means in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring means for injection. The spring means is a torsion spring grounded at one end in the housing and at the other end in a first gear member rotatable about a longitudinal axis but axially fixed wherein the first gear member, upon rotation, is arranged for translatively moving a second gear member, the second gear member prevented from rotating and coupled to the bung in order to push it towards the proximal end (P), wherein the first gear member is engaged with the activating means prior to manual operation in a manner to prevent rotation and disengaged from the activating means upon manual operation. The activating means is a trigger button, arranged at a distal end (D) of the housing and operable by being pressed in proximal direction (P).

摘要翻译： 本发明涉及一种用于施用剂量的液体药物（M）的自动注射器，其包括布置成容纳具有中空针头的注射器的细长壳体和用于密封注射器并移位药剂（M）的塞子 细长壳体具有远端（D）和近端（P），其具有旨在施加在注射部位上的孔，其中所述注射器相对于所述壳体可滑动地布置; 弹簧装置，其能够在启动时将针从壳体内的覆盖位置推入通过孔口并经过近端（P）的前进位置，以及操作注射器以供应剂量的药物（M）; 以及启动装置，其布置成在手动操作之前将弹簧装置锁定在加压状态，并且能够在手动操作时释放用于注射的弹簧装置。 弹簧装置是扭转弹簧，其一端接合在壳体中，另一端处于第一齿轮构件中，该第一齿轮构件围绕纵向轴线可旋转但是轴向固定，其中第一齿轮构件在旋转时被布置成平移地移动第二齿轮构件 ，第二齿轮构件被阻止旋转并联接到栓，以将其推向近端（P），其中第一齿轮构件在手动操作之前与致动装置接合以防止旋转和脱离 手动操作时的激活装置。 激活装置是触发按钮，其布置在壳体的远端（D）处，并且通过沿近端方向（P）被按压。

公开(公告)号：US20130267897A1

公开(公告)日：2013-10-10

申请号：US13996420

申请日：2011-12-21

申请人： Thomas Mark Kemp ,  Douglas Jennings ,  Matthew Ekman

发明人： Thomas Mark Kemp ,  Douglas Jennings ,  Matthew Ekman

IPC分类号： A61M5/20

CPC分类号： A61M5/2033 ,  A61M5/20 ,  A61M5/24 ,  A61M5/326 ,  A61M5/46 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/2086

摘要： According to the invention, a back-end device of an auto-injector adapted to be attached to a packaged syringe comprises a plunger arranged to abut against a stopper of the packaged syringe to translate an injection needle of the packaged syringe in a proximal direction and to expel a dose of a medicament contained in the packaged syringe through the injection needle, a drive means capable of, upon release, driving the plunger in the proximal direction towards a proximal position, a rotary sleeve with a cam surface adapted to be engaged by a plunger follower formed to the plunger, a torsion spring arranged to exert a torque upon the rotary sleeve and a release element capable of, upon manual actuation, releasing the engagement of the plunger follower with the cam surface. The plunger follower is arranged to engage the cam surface to prevent the rotary sleeve from rotating with respect to the chassis in an initial state. Furthermore, in the initial state the plunger follower is arranged to engage the cam surface to prevent an axial translation of the plunger in the proximal direction. Upon release of the engagement of the plunger follower with the cam surface, the rotary sleeve is arranged to rotate within the chassis. The cam surface re-engages the plunger follower after a time delay determined by a rotation speed of the rotary sleeve. The time delay is set so as to allow the cam surface to re-engage the plunger follower after the plunger reaches the proximal position. The cam surface is arranged to withdraw the plunger from the proximal position in a distal direction by continued rotation of the rotary sleeve.

摘要翻译： 根据本发明，适于附接到包装的注射器的自动注射器的后端装置包括柱塞，所述柱塞被布置成抵靠包装的注射器的塞子，以沿着近端方向平移包装的注射器的注射针， 以通过所述注射针排出包装在所述包装注射器中的药物的剂量;驱动装置，其能够在释放时沿所述近端方向朝向近端位置驱动所述柱塞;旋转套筒，其具有适于被 形成在柱塞上的柱塞随动件，设置成在旋转套筒上施加转矩的扭转弹簧和能够在手动致动时释放柱塞从动件与凸轮表面的接合的释放元件。 柱塞从动件被布置成接合凸轮表面以防止旋转套筒在初始状态下相对于底盘旋转。 此外，在初始状态下，柱塞从动件布置成接合凸轮表面以防止柱塞沿近端方向的轴向平移。 当释放柱塞从动件与凸轮表面的接合时，旋转套筒被布置成在底盘内旋转。 在由旋转套筒的旋转速度确定的时间延迟之后，凸轮表面重新接合柱塞从动件。 时间延迟被设定为允许凸轮表面在柱塞到达近端位置之后重新接合柱塞从动件。 凸轮表面布置成通过旋转套筒的持续旋转在远端方向上从近端位置缩回柱塞。

公开(公告)号：US20130190721A1

公开(公告)日：2013-07-25

申请号：US13877492

申请日：2011-10-06

申请人： Thomas Mark Kemp ,  Matthew Ekman

发明人： Thomas Mark Kemp ,  Matthew Ekman

IPC分类号： A61M5/32

CPC分类号： A61M5/3232 ,  A61M5/2033 ,  A61M5/3202 ,  A61M5/326 ,  A61M2005/2013 ,  A61M2005/206

摘要： The invention refers to an auto-injector and to a method for operating it, the auto-injector comprising of a tubular chassis; a carrier subassembly comprising a tubular carrier slidably arranged in the chassis, the carrier containing a syringe with a hollow injection needle, a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe; a wrap-over trigger sleeve arranged over the distal end (D) of the auto-injector; the trigger sleeve extending at least almost over the whole length of the auto-injector; a control spring arranged around the carrier; first interlock means for coupling a proximal end of the control spring to either the carrier for advancing it for needle insertion or to the chassis for needle retraction; second interlock means arranged for releasing the drive spring for injection; third interlock means arranged for coupling the chassis to the carrier for joint axial translation relative to the trigger sleeve; and fourth interlock means arranged for coupling a distal end of the control spring to either the carrier for needle retraction or to the trigger sleeve otherwise.

摘要翻译： 本发明涉及一种自动注射器及其操作方法，所述自动注射器包括管状底盘; 载体子组件包括可滑动地布置在底架中的管状载体，载体包含具有中空注射针的注射器，驱动弹簧和用于将驱动弹簧的载荷传递到注射器的塞子的柱塞; 一个设置在自动注射器的远端（D）上的包裹触发套筒; 触发套筒至少几乎在自动注射器的整个长度上延伸; 布置在所述托架周围的控制弹簧; 第一互锁装置，用于将控制弹簧的近端联接到载体上，用于将其推进用于针插入;或用于将针头缩回到底架; 第二互锁装置，其布置成用于释放用于喷射的驱动弹簧; 第三互锁装置，被布置成将底盘联接到托架，用于相对于触发套筒的关节轴向平移; 以及第四互锁装置，其布置成用于将控制弹簧的远端联接到用于针头缩回的支架或触发器套筒。

公开(公告)号：US20130138049A1

公开(公告)日：2013-05-30

申请号：US13581566

申请日：2011-03-03

申请人： Thomas Mark Kemp ,  Douglas Jennings ,  Andrew Peter Scudamore ,  Matthew Ekman

发明人： Thomas Mark Kemp ,  Douglas Jennings ,  Andrew Peter Scudamore ,  Matthew Ekman

IPC分类号： A61M5/32 ,  A61M5/20

CPC分类号： A61M5/322 ,  A61M5/2033 ,  A61M5/24 ,  A61M5/3202 ,  A61M5/3204 ,  A61M5/3234 ,  A61M5/326 ,  A61M2005/202 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/2086 ,  A61M2005/2407 ,  A61M2005/2496 ,  A61M2005/3267

摘要： The invention relates to an injection device, comprising a syringe with a hollow needle and a stopper for sealing the syringe and displacing a medicament (M) stored in the syringe, the injection device further comprising a drive means, a plunger arranged for pushing against the stopper and an arrangement for transferring a translation of the drive means to the plunger, the arrangement comprising an elongate release latch member pivoted at one end which is connected to either the drive means or the plunger, the release latch member having another end for engaging the respective other one of the drive means or the plunger, wherein the release latch member is arranged to have its non-pivoted other end disengaged by rotation due to contact between at least one ramp and another component when the stopper has at least nearly displaced all of a predefined dose of the medicament (M), wherein a length of the release latch member is specified so as to provide a clearance between the plunger and the drive means when the release latch member is engaged in order to allow at least the plunger, the stopper and the hollow needle to be retracted at least far enough to hide the needle inside the syringe or inside a housing after disengaging the release latch member.

摘要翻译： 本发明涉及一种注射装置，其包括具有中空针头的注射器和用于密封注射器并移动存储在注射器中的药物（M）的止动件，该注射装置还包括驱动装置，柱塞， 止动器和用于将驱动装置的平移传递到柱塞的装置，该装置包括在连接到驱动装置或柱塞的一端枢转的细长释放闩锁构件，释放闩锁构件具有用于接合 所述驱动装置或所述柱塞中的相应的另一个，其中所述释放闩锁构件被布置成使得当所述止动件至少几乎位移至少几乎全部时，所述释放闩锁构件由于至少一个斜坡和另一部件之间的接触而使其不可枢转的另一端由于旋转而脱离 预定剂量的药物（M），其中指定释放闩锁构件的长度以便提供柱塞和 当释放闩锁构件接合时，驱动装置是为了允许至少使柱塞，止动器和中空针缩回到至少足够远以在将释放闩锁构件分离之后将针隐藏在注射器内部或壳体内部。

公开(公告)号：US09180258B2

公开(公告)日：2015-11-10

申请号：US13581564

申请日：2011-03-03

申请人： Thomas Mark Kemp ,  Douglas Jennings ,  Andrew Peter Scudamore ,  Matthew Ekman

发明人： Thomas Mark Kemp ,  Douglas Jennings ,  Andrew Peter Scudamore ,  Matthew Ekman

IPC分类号： A61M5/32 ,  A61M5/20 ,  A61M5/24

CPC分类号： A61M5/3287 ,  A61M5/2033 ,  A61M5/24 ,  A61M5/3202 ,  A61M5/3204 ,  A61M5/3234 ,  A61M5/326 ,  A61M2005/202 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/2086 ,  A61M2005/2407 ,  A61M2005/2496 ,  A61M2005/3267

摘要： An auto-injector for administering a dose of a liquid medicament (M) is presented having an elongate housing arranged to contain a syringe, a proximal end (P) with an orifice, wherein the syringe is slidably arranged with respect to the housing. A drive spring upon activation pushes the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), and operates the syringe to supply the dose of medicament (M). An activating means locks the drive spring in a compressed state. The housing distal and a proximal portions are connected by a hinge, and are rotatable about the hinge between an aligned position and a maximum opening angle. A loading bay for holding the syringe is arranged in the proximal portion.

摘要翻译： 提供了一种用于施用剂量的液体药物（M）的自动注射器，其具有布置成容纳注射器的细长壳体，具有孔口的近端（P），其中所述注射器相对于所述壳体可滑动地布置。 激活时的驱动弹簧将针从壳体内的覆盖位置推入通过孔口并通过近端（P）的前进位置，并操作注射器以供应剂量的药物（M）。 激活装置将驱动弹簧锁定在压缩状态。 壳体远端和近端部分通过铰链连接，并且可以在对准位置和最大开启角度之间围绕铰链旋转。 用于保持注射器的装载隔间布置在近端部分中。

公开(公告)号：US09011387B2

公开(公告)日：2015-04-21

申请号：US13580146

申请日：2011-02-16

申请人： Matthew Ekman ,  Timothy Donald Barrow-Williams ,  Thomas Mark Kemp

发明人： Matthew Ekman ,  Timothy Donald Barrow-Williams ,  Thomas Mark Kemp

IPC分类号： A61M5/20 ,  A61M5/32 ,  A61M5/315 ,  A61M5/46 ,  A61M5/48 ,  A61M5/24 ,  A61M5/31

CPC分类号： A61M5/3158 ,  A61M5/20 ,  A61M5/2033 ,  A61M5/315 ,  A61M5/3202 ,  A61M5/326 ,  A61M5/46 ,  A61M5/482 ,  A61M5/484 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/2086 ,  A61M2005/2418 ,  A61M2005/3103 ,  A61M2005/3152 ,  A61M2005/3247 ,  A61M2205/581 ,  A61M2205/583

摘要： The invention relates to a transmission arrangement for controlling a force of a translation, the transmission arrangement comprising a drive collar (13) connectable to a translative drive means (11) and prevented from rotating with respect to a ground (12) of the drive means (11), a flange face of the drive collar (13) bearing against a mating flange face of a friction collar (20), the friction collar (20) slidable in longitudinal direction and rotationally constrained by engagement in a cam track (12.3), another flange face of the friction collar (20) bearing against a mating flange face of a plunger (8), the plunger (8) slidable in longitudinal direction and prevented from rotating.

摘要翻译： 本发明涉及一种用于控制平移力的传动装置，该传动装置包括可连接到平移驱动装置（11）并被阻止相对于驱动装置（12）旋转的驱动套环（13） （11），所述驱动轴环（13）的凸缘面抵靠摩擦轴环（20）的配合凸缘面，所述摩擦轴环（20）可在纵向方向上滑动并通过接合在凸轮轨道（12.3）中而被旋转地限制， ，所述摩擦轴环（20）的另一凸缘面抵靠着柱塞（8）的配合凸缘面，所述柱塞（8）可沿纵向方向滑动并防止旋转。

公开(公告)号：US08758304B2

公开(公告)日：2014-06-24

申请号：US13877160

申请日：2011-10-06

申请人： Thomas Mark Kemp ,  Matthew Ekman

发明人： Thomas Mark Kemp ,  Matthew Ekman

IPC分类号： A61M5/32

CPC分类号： A61M5/3287 ,  A61M5/2033 ,  A61M5/3202 ,  A61M5/326 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/3247

摘要： The invention relates to an auto-injector for administering a dose of a liquid medicament, comprising: an elongate housing, a syringe with a hollow needle and a bung for displacing the medicament, wherein the syringe is slidably arranged with respect to the housing, spring means for pushing the needle from a covered position inside the housing into an advanced position past the proximal end and for supplying the dose of medicament, activating means for locking and releasing the spring means. The spring means is a torsion spring grounded at one end in the housing and at the other end in a lead nut rotatable about a longitudinal axis but axially constrainable. The lead nut is arranged for translatively moving a piston rod by means of a lead screw thread. The piston rod is prevented from rotating relative to the housing and arranged to be coupled to the bung in order to push it forwards. The lead nut is engaged to the housing in an initial position prior to manual operation of the activating means in a manner to prevent rotation and disengaged from the housing by the activating means upon manual operation.The activating means is a trigger button, arranged at a distal end of the housing. Prior to manual operation the trigger button, the piston rod and the lead nut are coupled for joint translation in proximal direction. In the initial position the lead nut is engaged to the housing by at least one spline feature. The lead nut is arranged to disengage from the housing on translation in proximal direction from the initial position.

摘要翻译： 本发明涉及一种用于给药液体药物的自动注射器，包括：细长壳体，具有中空针头的注射器和用于移动药物的栓塞，其中注射器相对于壳体可滑动地布置，弹簧 用于将所述针从所述壳体内的覆盖位置推入超过所述近端的前进位置并用于供应所述剂量的药剂的启动装置，用于锁定和释放所述弹簧装置的启动装置。 弹簧装置是扭转弹簧，其一端接合在壳体中，另一端处于可围绕纵向轴线旋转但可轴向限制的导螺母中。 引导螺母布置成通过导螺纹来平移运动活塞杆。 活塞杆被防止相对于壳体旋转并且被布置成联接到栓塞以向前推。 在手动操作激活装置之前，引导螺母以初始位置接合到壳体，以防止在手动操作时由致动装置旋转和脱离外壳。 激活装置是设置在壳体的远端处的触发按钮。 在手动操作之前，触发按钮，活塞杆和引导螺母联接，以在近端方向进行联合平移。 在初始位置，引导螺母通过至少一个花键特征与壳体接合。 引导螺母布置成在近端方向上从初始位置平移脱离壳体。

公开(公告)号：US20130289490A1

公开(公告)日：2013-10-31

申请号：US13877160

申请日：2011-10-06

申请人： Thomas Mark Kemp ,  Matthew Ekman

发明人： Thomas Mark Kemp ,  Matthew Ekman

IPC分类号： A61M5/32

CPC分类号： A61M5/3287 ,  A61M5/2033 ,  A61M5/3202 ,  A61M5/326 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/3247

摘要： The invention relates to an auto-injector for administering a dose of a liquid medicament, comprising: an elongate housing, a syringe with a hollow needle and a bung for displacing the medicament, wherein the syringe is slidably arranged with respect to the housing, spring means for pushing the needle from a covered position inside the housing into an advanced position past the proximal end and for supplying the dose of medicament, activating means for locking and releasing the spring means. The spring means is a torsion spring grounded at one end in the housing and at the other end in a lead nut rotatable about a longitudinal axis but axially constrainable. The lead nut is arranged for translatively moving a piston rod by means of a lead screw thread. The piston rod is prevented from rotating relative to the housing and arranged to be coupled to the bung in order to push it forwards. The lead nut is engaged to the housing in an initial position prior to manual operation of the activating means in a manner to prevent rotation and disengaged from the housing by the activating means upon manual operation.The activating means is a trigger button, arranged at a distal end of the housing. Prior to manual operation the trigger button, the piston rod and the lead nut are coupled for joint translation in proximal direction. In the initial position the lead nut is engaged to the housing by at least one spline feature. The lead nut is arranged to disengage from the housing on translation in proximal direction from the initial position.

摘要翻译： 本发明涉及一种用于给药液体药物的自动注射器，其包括：细长壳体，具有中空针头的注射器和用于移动药物的栓塞，其中所述注射器相对于所述壳体可滑动地布置，所述弹簧 用于将所述针从所述壳体内的覆盖位置推入超过所述近端的前进位置并用于供应所述剂量的药剂的启动装置，用于锁定和释放所述弹簧装置的启动装置。 弹簧装置是扭转弹簧，其一端接合在壳体中，另一端处于可围绕纵向轴线旋转但可轴向限制的导螺母中。 引导螺母布置成通过导螺纹来平移运动活塞杆。 活塞杆被防止相对于壳体旋转并且被布置成联接到栓塞以向前推。 在手动操作激活装置之前，引导螺母以初始位置接合到壳体，以防止在手动操作时由致动装置旋转和脱离外壳。 激活装置是设置在壳体的远端处的触发按钮。 在手动操作之前，触发按钮，活塞杆和引导螺母联接，以在近端方向进行联合平移。 在初始位置，引导螺母通过至少一个花键特征与壳体接合。 引导螺母布置成在近端方向上从初始位置平移脱离壳体。