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1. 发明申请

WO2015114381A1 SYRINGE FOR AUTOINJECTOR DEVICE COMPRISING RESILIENT OUTER LAYER ALONG ELONGATE PLUNGER ROD 审中-公开
标题翻译：用于包括ELENATE PLUNGER ROD的弹性外层的自动感应装置的注射
公开(公告)号：WO2015114381A1
公开(公告)日：2015-08-06
申请号：PCT/GB2015/050275
申请日：2015-02-02
申请人： CONSORT MEDICAL PLC
发明人： CAMMISH, Neil , ANDERSON, Ian , EKMAN, Matt
IPC分类号： A61M5/315 , A61M5/20
CPC分类号： A61M5/31513 , A61M5/20 , A61M2205/0216 , A61M2205/0238
摘要： A syringe for use in an autoinjector, the syringe comprising a barrel having a front outlet, an open rear end, and a tubular body extending between the front outlet and open rear end. The tubular body has an internal diameter and defines a volume for containing medicament, and the open rear end has a diameter substantially equal to or greater than the internal diameter of the tubular body. The syringe further comprises a polymeric elongate plunger rod having a stopper at a forward end and a resilient outer layer along the length of the elongate plunger rod, where the elongate plunger rod is disposable within the barrel such that the stopper seals against the inside of the tubular body of the barrel and is slidable therein by axial translation of the plunger rod in the barrel.
摘要翻译：一种用于自动注射器的注射器，所述注射器包括具有前出口，敞开的后端和在所述前出口和敞开的后端之间延伸的管状体的筒体。管状体具有内径并且限定用于容纳药物的体积，并且敞开的后端的直径基本上等于或大于管状体的内径。注射器还包括聚合物细长柱塞杆，其具有在前端处的止动件和沿着细长柱塞杆的长度的弹性外层，其中细长柱塞杆在桶内是一次性的，使得止动件密封在内侧筒体的管状体并且可通过柱塞杆在筒体中的轴向平移而在其中滑动。

2. 发明申请

WO2015063462A2 MEDICAMENT DELIVERY DEVICE 审中-公开
标题翻译：药物输送装置
公开(公告)号：WO2015063462A2
公开(公告)日：2015-05-07
申请号：PCT/GB2014/053193
申请日：2014-10-27
申请人： CONSORT MEDICAL PLC
发明人： WILLOUGHBY, Alastair , HOWARTH, Brad , ANDERSON, Ian , KOPPELMAN, Rachel
IPC分类号： A61M5/145
CPC分类号： A61M5/14526 , A61M5/1454 , A61M5/16877 , A61M5/31515 , A61M2005/14513 , A61M2005/2086 , A61M2205/3334 , A61M2206/22
摘要： A medicament delivery device comprising a first container having a delivery outlet at a front end thereof and a first stopper axially moveable in the first container, the first stopper defining and separating a first chamber and a second chamber in the first container, where the first chamber is axially forwards of the first stopper and the second chamber is axially rearwards of the first stopper. The medicament delivery device further comprising a second container having a second stopper axially moveable in the second container, the second stopper defining and separating a third chamber and a fourth chamber in the second container, where the third chamber is axially forwards of the second stopper and the fourth chamber is axially rearwards of the second stopper, and where the third chamber has a vent outlet in fluid communication with a venting chamber. The first stopper is connected to the second stopper by a tensile member such that axially forwardly movement of the first stopper causes axially forwardly movement of the second stopper due to tensioning of the tensile member. The first stopper is driveable in an axially forwardly direction, the first chamber is configured to contain medicament for delivery through the delivery outlet as the first stopper moves axially forwards, the third chamber contains a viscous fluid that enters the venting chamber via the vent outlet as the second stopper moves axially forwards, and the fourth chamber has a pressure that is substantially equal to or greater than the pressure of the venting chamber. As the first stopper is driven axially forwardly, the tensile member is tensioned and causes the second stopper to move axially forwardly and the venting of viscous fluid into the venting chamber via the vent outlet retards the axially forward movement of the second stopper and the first stopper.
摘要翻译：药物输送装置，其包括第一容器和第二容器，第一容器在其前端具有输送出口，第一限位器可在第一容器中轴向移动，第一限位器限定并分隔第一腔室和第二腔室，第一容器，其中第一腔室在第一止动件的轴向前方，并且第二腔室在第一止动件的轴向后方。所述药物输送装置还包括第二容器，所述第二容器具有可在所述第二容器中轴向移动的第二止动件，所述第二止动件限定并分离所述第二容器中的第三腔室和第四腔室，其中所述第三腔室在所述第二止动件的轴向前方以及第四腔室在第二止动件的轴向后方，并且第三腔室具有与排气室流体连通的排气出口。第一止动件通过拉伸构件连接至第二止动件，使得第一止动件的轴向向前运动由于张力构件的张紧而引起第二止动件的轴向向前运动。第一止动件可沿轴向向前方向驱动，第一腔室构造成容纳用于当第一止动件向前轴向移动时通过输送出口输送的药物，第三腔室容纳经由通气出口进入通气腔室的粘性流体，如第二塞子轴向向前移动，并且第四腔室具有基本上等于或大于通气室的压力的压力。当第一挡块被轴向向前驱动时，拉伸构件被张紧并且使得第二挡块轴向向前移动，并且粘性流体经由排气出口排出到排气室中阻止第二挡块和第一挡块的轴向向前移动

3. 发明申请

WO2014155114A1 IMPROVED MIXING SYRINGE ASSEMBLY 审中-公开
标题翻译：改进的混合注射器组件
公开(公告)号：WO2014155114A1
公开(公告)日：2014-10-02
申请号：PCT/GB2014/050965
申请日：2014-03-26
申请人： CONSORT MEDICAL PLC
发明人： ANDERSON, Ian , EKMAN, Matt , GLOVER, Robert , KOPPELMAN, Rachel
IPC分类号： A61M5/315
CPC分类号： A61M5/31596 , A61M5/3137 , A61M5/31505
摘要： A syringe assembly comprising a barrel for containing one or more medicaments, the barrel having a front outlet for allowing the expulsion of said one or more medicaments from the said barrel through said outlet, and a first stopper disposed in the barrel and axially moveable therein and defining a first volume in the barrel axially forwards of the first stopper and a second volume in the barrel axially rearwards of the first stopper. The first stopper has a two way valve that is moveable between a sealing configuration and an open configuration to selectively put the first volume in fluid communication with the second volume. The two way valve is moveable from the sealing configuration to the open configuration by an increase in fluid pressure in either of the first and second volumes. The syringe assembly additionally comprises a second stopper disposed in the barrel axially rearward of the first stopper and axially moveable therein, the second stopper providing a fluid tight seal at a rear end of the second volume. The syringe assembly further comprises a first plunger rod connected to the first stopper and extending axially rearwardly through the second stopper, the second stopper sealingly engaging with the first plunger rod but permitting axial sliding of the first plunger rod therethrough. The first plunger rod is axially moveable so as to axially move the first stopper and pressurise either of the first volume and second volume causing the two way valve to move into the open configuration and fluidly connect the first volume and second volume.
摘要翻译：一种注射器组件，包括用于容纳一种或多种药物的镜筒，所述镜筒具有前出口，用于允许所述一个或多个药物从所述镜筒通过所述出口排出;以及第一止动件，其设置在所述镜筒中并在其中可轴向移动; 限定所述筒体中的第一容积在所述第一止动件的轴向前方，所述筒体中的第二容积在所述第一止动件的轴向向后。第一止动器具有可在密封构造和打开构型之间移动的双向阀，以选择性地将第一容积与第二容积流体连通。双向阀可以通过在第一和第二体积中的任一个中的流体压力的增加从密封构造移动到打开构型。注射器组件还包括设置在筒体中的第一止动件的轴向后方并在其中可轴向移动的第二止动件，第二止动件在第二容积的后端提供流体密封。注射器组件还包括连接到第一止动件并且轴向向后延伸穿过第二止动件的第一柱塞杆，第二止动件与第一柱塞杆密封地接合，但允许第一柱塞杆通过其轴向滑动。第一柱塞杆可轴向移动以便轴向移动第一止动件并对第一容积和第二容积中的任何一个进行加压，从而使双向阀移动到打开构型中并且流体地连接第一容积和第二容积。

4. 发明申请

WO2013186568A1 VALVED CONTAINER ASSEMBLY 审中-公开
标题翻译：阀门集装箱
公开(公告)号：WO2013186568A1
公开(公告)日：2013-12-19
申请号：PCT/GB2013/051557
申请日：2013-06-14
申请人： CONSORT MEDICAL PLC
发明人： EKMAN, Matt , ANDERSON, Ian
IPC分类号： B05B11/00 , B05B11/02 , B65D83/00 , A61M15/00 , A61M5/30
CPC分类号： A61M39/24 , A61M5/2459 , A61M11/007 , A61M11/065 , A61M15/0028 , A61M15/08 , A61M2039/242 , A61M2205/8225 , A61M2205/8231 , A61M2207/00 , A61M2210/0618 , B05B11/0054 , B05B11/007 , B05B11/02 , B05C17/00593 , B65D83/0005 , Y10T29/4984
摘要： A valved container assembly (10) comprising a container (12) for containing a fluid, the container (12) extending in an axial direction and having at least one venting opening (12a) at a front end and at least one dispensing opening (12b). The valved container assembly (10) further comprising a valve (14) disposed in the container (12) and a plunger element (20) disposed axially rearward of the valve (14), the plunger element (20) being axially moveable in the container (12) and defining a first volume (22) in the container (12) between the plunger element (20) and the valve (14), where the plunger element (20) is configured to increase the pressure of a fluid in the first volume (22) upon axial movement relative to the valve (14). The valve (14) comprises a permanent seal (16) forming a fluidic seal between the at least one venting opening (12a) and the first volume (22), and a resilient seal (18) that is axially rearward of said permanent seal (16) and is moveable between a sealing configuration and an open configuration. In the sealing configuration the resilient seal (18) forms a fluidic seal with the container (12) between the at least one dispensing opening (12b) and the first volume (22). In at least one axial position of the valve (14) in the container (12) when the resilient seal (18) is in the open configuration the first volume (22) is fluidly connected to the at least one dispensing opening (12b). The resilient seal (18) is moveable from the sealing configuration to the open configuration upon fluid pressure in the first volume (22) exceeding a predetermined pressure threshold.
摘要翻译：一种阀的容器组件（10），包括用于容纳流体的容器（12），所述容器（12）在轴向方向上延伸并且在前端具有至少一个通气开口（12a）和至少一个分配开口（12b ）。带阀的容器组件（10）还包括设置在容器（12）中的阀（14）和设置在阀（14）的轴向后方的柱塞元件（20），柱塞元件（20）可在容器（12）并且在所述柱塞元件（20）和所述阀（14）之间的所述容器（12）中限定第一容积（22），其中所述柱塞元件（20）构造成增加所述第一相对于阀（14）在轴向移动时的体积（22）。所述阀（14）包括在所述至少一个通气开口（12a）和所述第一容积（22）之间形成流体密封件的永久性密封件（16）和位于所述永久密封件的轴向后方的弹性密封件（18） 16），并且可以在密封构造和打开构型之间移动。在密封构造中，弹性密封件（18）与至少一个分配开口（12b）和第一容积（22）之间的容器（12）形成流体密封。当弹性密封件（18）处于打开构造时，在容器（12）中的阀（14）的至少一个轴向位置中，第一容积（22）流体地连接到至少一个分配开口（12b）。当第一容积（22）中的流体压力超过预定压力阈值时，弹性密封件（18）可从密封构型移动到打开构型。

5. 发明申请

WO2018142106A1 A MEDICAMENT DELIVERY DEVICE 审中-公开
公开(公告)号：WO2018142106A1
公开(公告)日：2018-08-09
申请号：PCT/GB2018/050182
申请日：2018-01-22
申请人： CONSORT MEDICAL PLC
发明人： ANDERSON, Ian , WILLOUGHBY, Alastair , KOPPELMAN, Rachel
IPC分类号： A61M5/20 , A61M5/315 , A61M5/32
摘要： A medicament delivery device comprises a housing and a syringe axially movable in the housing and the syringe having a barrel. The device further comprises a stopper axially movable in the barrel and which separates a first chamber and second chamber from one another. The stopper is axially movable in the barrel in response to a vapour pressure being received in the second chamber. The device also includes a biasing mechanism to axially move the syringe in the housing between a first syringe position and a second syringe position in response to a first reduction in the vapour pressure in the second chamber. In the first syringe position venting of the propellant from the second chamber through a first fluid pathway is permitted to enable the first reduction in the vapour pressure in the second chamber while venting of the propellant from the second chamber through a second fluid pathway is substantially prevented. In the second syringe position venting of the propellant from the second chamber through the second fluid pathway is permitted to enable a second reduction in the vapour pressure in the second chamber.

6. 发明申请

WO2013124670A1 DISPENSER COMPRISING ACTUATING PISTON AND OUTLET CHECK VALVE 审中-公开
标题翻译：包括执行活塞和出口检查阀的分配器
公开(公告)号：WO2013124670A1
公开(公告)日：2013-08-29
申请号：PCT/GB2013/050439
申请日：2013-02-22
申请人： CONSORT MEDICAL PLC
发明人： ANDERSON, Ian , EKMAN, Matt
IPC分类号： B05B11/00 , B05B11/02
CPC分类号： A61M3/0279 , A61M11/007 , A61M15/0028 , A61M15/003 , A61M15/0043 , A61M15/08 , A61M31/00 , A61M39/24 , A61M2005/3128 , A61M2039/242 , A61M2202/0468 , A61M2210/0618 , B05B7/24 , B05B11/007 , B05B11/02
摘要： A container assembly comprising a container, a valve disposed in the container and an axially movable plunger element disposed axially rearward of the valve. The plunger element defines a first volume in the container between the plunger element and the valve. The valve comprises a permanent seal sealing the valve to the container about the entire perimeter of the valve, and a channel bypassing the permanent seal and being in fluid communication with the atmosphere outside of the container assembly and being selectively sealed from the first volume by a resilient seal. The resilient seal is moveable from a sealing configuration to an open configuration upon fluid pressure in the first volume exceeding a first pressure threshold.
摘要翻译：一种容器组件，包括容器，设置在容器中的阀和沿阀门的后方设置的可轴向移动的柱塞元件。柱塞元件在柱塞元件和阀之间限定容器中的第一容积。该阀包括永久性密封件，该阀将阀门围绕阀的整个周边密封到容器，以及绕过永久性密封件并且与容器组件外部的大气流体连通的通道，并且与第一容积选择性地密封弹性密封。当第一体积中的流体压力超过第一压力阈值时，弹性密封件可以从密封构造移动到打开构型。

7. 发明申请

WO2013182857A1 IMPROVED SYRINGE 审中-公开
标题翻译：改进的SYRINGE
公开(公告)号：WO2013182857A1
公开(公告)日：2013-12-12
申请号：PCT/GB2013/051508
申请日：2013-06-07
申请人： CONSORT MEDICAL PLC
发明人： ANDERSON, Ian , EKMAN, Matt , KOPPELMAN, Rachel Suzanne
IPC分类号： B65B31/04 , B65B51/26 , B65B51/30 , A61M5/20 , A61M5/155
CPC分类号： B65D83/24 , A61M5/142 , A61M5/14526 , A61M5/155 , A61M5/16804 , A61M5/16881 , A61M5/2053 , A61M5/44 , A61M39/22 , A61M2005/14513 , A61M2039/2486 , A61M2207/00 , A61M2207/10 , B65B31/045 , B65B51/26 , B65B51/30 , B65D83/48 , F04C2270/0421 , Y10T29/49 , Y10T29/49808
摘要： A syringe propellable by propellant that boils at a predetermined temperature, the syringe comprising a barrel having an outlet at a front end, and a stopper axially moveable in the barrel. The stopper defines and separates a first chamber and a second chamber, the first chamber being axially forwards of the stopper and being configured for containing a medicament, and the second chamber being axially rearwards of the stopper and being configured to receive propellant for acting on the stopper to move the stopper axially forwardly in the barrel to expel medicament through the outlet upon actuation of the syringe. The syringe further comprises a rupturing portion and a third chamber for containing propellant where the third chamber is rupturable. The rupturing portion is configured to rupture the third chamber upon actuation of the syringe to fluidly connect the third chamber to the second chamber and release liquid propellant from the third chamber so that the pressure in the second chamber increases at or above the predetermined temperature causing the stopper to move axially forwardly and begin to expel medicament from the first chamber through the outlet. When propellant is released into the second chamber the pressure in the second chamber increases over a first time period to a first pressure causing the stopper to move axially forwardly to begin expulsion of medicament from the first chamber through the outlet. The syringe is configured such that while the medicament is expelled from the first chamber the pressure in the second chamber changes over a second time period from the first pressure to a second pressure. When substantially all the medicament has been expelled from the first chamber the pressure in the second chamber increases over a third time period towards a third pressure. The magnitude of the second pressure and the rate of increase of the pressure in the second chamber during the third time period are controlled by the thermal conductivity of the components of the syringe defining the second chamber, the rate of delivery of propellant to the second chamber, and the phase of the propellant during delivery into the second chamber. The third pressure is substantially equal to the vapour pressure of the propellant at ambient temperature at the instantaneous volume of the vaporised propellant, and at the third pressure the syringe contains liquid propellant.
摘要翻译：由推进剂推进的注射器在预定温度下沸腾的注射器，注射器包括在前端具有出口的筒体和在筒体中可轴向移动的止动件。止动件限定和分离第一腔室和第二腔室，第一腔室位于塞子的轴向前方并被构造成用于容纳药物，第二腔室位于塞子的轴向后方，并且构造成容纳推进剂以作用于止动器使塞子在筒体中轴向向前移动，以在注射器致动时通过出口排出药物。注射器还包括破裂部分和用于容纳推进剂的第三室，其中第三室是可破裂的。破裂部分构造成在注射器致动时破裂第三腔室，以将第三腔室与第二腔室流体连接并从第三腔室释放液体推进剂，使得第二腔室中的压力升高至预定温度或高于预定温度，止动器沿轴向向前移动并开始从第一腔室通过出口排出药物。当推进剂被释放到第二室中时，第二室中的压力在第一时间段内增加到第一压力，使得塞子轴向向前移动，以开始从第一室通过出口排出药物。注射器构造成使得当药物从第一腔室排出时，第二腔室中的压力在第二时间段内从第一压力改变到第二压力。当基本上所有药物已经从第一室排出时，第二室中的压力在第三时间段内朝向第三压力增加。在第三时间段期间第二压力的大小和第二室中的压力增加率由限定第二室的注射器的部件的热导率，推进剂向第二室的传送速率，以及推进剂在输送到第二室期间的相位。在气化推进剂的瞬时体积下，第三压力基本上等于推进剂在环境温度下的蒸气压，而在第三压力下，注射器含有液体推进剂。

8. 发明申请

WO2013182859A1 METHOD OF MANUFACTURING A PROPELLANT CONTAINER AND SYRINGE COMPRISING A PROPELLANT CONTAINER 审中-公开
标题翻译：推进式容器的制造方法和包含推进式容器的灌注装置
公开(公告)号：WO2013182859A1
公开(公告)日：2013-12-12
申请号：PCT/GB2013/051510
申请日：2013-06-07
申请人： CONSORT MEDICAL PLC
发明人： ANDERSON, Ian , WILLOUGHBY, Alastair, McKean
IPC分类号： B65B31/04 , B65B51/26 , B65B51/30
CPC分类号： B65D83/24 , A61M5/142 , A61M5/14526 , A61M5/155 , A61M5/16804 , A61M5/16881 , A61M5/2053 , A61M5/44 , A61M39/22 , A61M2005/14513 , A61M2039/2486 , A61M2207/00 , A61M2207/10 , B65B31/045 , B65B51/26 , B65B51/30 , B65D83/48 , F04C2270/0421 , Y10T29/49 , Y10T29/49808
摘要： A method of manufacturing a container containing propellant comprising the steps of: i) sealing a first sheet of rupturable material to a second sheet of rupturable material to form a lower seal and two side seals; ii) placing a propellant dispensing apparatus in fluid communication with a central volume defined by said lower seal, said two side seals and a seal between the propellant dispensing apparatus and the first and second sheets; iii) depositing propellant in the central volume using said propellant dispensing apparatus; and iv) sealing the first sheet to the second sheet to form an upper seal to form a container where the propellant is contained between said upper seal, said lower seal, and said two side seals.
摘要翻译：一种制造容纳推进剂的容器的方法，包括以下步骤：i）将第一片可破裂材料密封到第二片可破裂材料以形成下密封和两个侧密封; ii）将推进剂分配装置与由所述下部密封件，所述两个侧面密封件和所述推进剂分配装置与所述第一和第二片材之间的密封件限定的中心容积流体连通; iii）使用所述推进剂分配装置将推进剂沉积在中心体积中; 以及iv）将所述第一片材密封到所述第二片材以形成上密封件以形成所述上密封件，所述下密封件和所述两侧密封件之间容纳所述推进剂的容器。

9. 发明申请

WO2013182856A1 IMPROVEMENTS IN OR RELATING TO DISPENSING VALVES 审中-公开
标题翻译：对分配阀的改进或相关
公开(公告)号：WO2013182856A1
公开(公告)日：2013-12-12
申请号：PCT/GB2013/051505
申请日：2013-06-07
申请人： CONSORT MEDICAL PLC
发明人： ANDERSON, Ian , WILLOUGHBY, Alastair , STROOBANT, Joshua , WARBY, Richard , ALLSOP, Paul
IPC分类号： B65B31/04 , B65B51/26 , B65B51/30 , A61M5/20 , A61M5/155 , A61M39/22
CPC分类号： B65D83/24 , A61M5/142 , A61M5/14526 , A61M5/155 , A61M5/16804 , A61M5/16881 , A61M5/2053 , A61M5/44 , A61M39/22 , A61M2005/14513 , A61M2039/2486 , A61M2207/00 , A61M2207/10 , B65B31/045 , B65B51/26 , B65B51/30 , B65D83/48 , F04C2270/0421 , Y10T29/49 , Y10T29/49808
摘要： A valve for discharging a fluid, comprising: a valve body at least partially defining a fluid chamber; and a valve stem extending into the fluid chamber, the valve stem comprising an outlet port for transfer, in use, of fluid from the fluid chamber into the valve stem; the valve stem being slidably movable relative to the valve body from: i) a non-dispensing position in which the outlet port is out of communication with the fluid chamber; to ii) a dispensing position in which the outlet port is in fluid communication with the fluid chamber so as to permit transfer of the fluid from the fluid chamber into the valve stem; wherein the valve further comprises a locking member which is configured to prevent return of the valve stem into the non-dispensing position once the valve stem slides beyond a locking position.
摘要翻译：一种用于排出流体的阀，包括：至少部分地限定流体室的阀体; 以及阀杆，其延伸到所述流体室中，所述阀杆包括用于在使用中将流体从所述流体室传送到所述阀杆中的出口端口; 所述阀杆可相对于所述阀体可滑动地移动，其特征在于：i）所述出口与所述流体室不连通的非分配位置; ii）分配位置，其中所述出口与所述流体室流体连通，以便允许所述流体从所述流体室传递到所述阀杆中; 其中所述阀还包括锁定构件，所述锁定构件被构造成一旦所述阀杆滑动超过锁定位置，则防止所述阀杆返回到所述非分配位置。

10. 发明申请

WO2016170347A1 MEDICAMENT DELIVERY DEVICE HAVING GAS PROPELLANT 审中-公开
标题翻译：具有气体推进剂的药物输送装置
公开(公告)号：WO2016170347A1
公开(公告)日：2016-10-27
申请号：PCT/GB2016/051115
申请日：2016-04-21
申请人： CONSORT MEDICAL PLC
发明人： ANDERSON, Ian , WILLOUGHBY, Alastair , KOPPELMAN, Rachel
IPC分类号： A61M5/20
CPC分类号： A61M5/2046 , A61M5/326 , A61M2005/2013 , A61M2005/206 , A61M2205/8218
摘要： A medicament delivery device (10) comprising a syringe (12) having a barrel with an open end, and an axially moveable stopper (18) received in the barrel separating a first chamber axially forwards of the stopper from a second chamber axially rearwards of the stopper. The medicament delivery device further including an expandable drive housing (24) arranged to receive a propellant from a propellant source (36) for providing a vapour pressure, the expandable drive housing having a narrow channel in fluid communication with the second chamber. The expandable drive housing is expandable upon receiving propellant from the propellant source and, upon expansion, causes forward axial movement of the syringe. Propellant introduced into the expandable housing may pass through the narrow channel into the second chamber and cause forward axial movement of the stopper in the barrel to expel medicament contained in the first chamber through the open end, where axial movement of the stopper in the barrel commences after axial movement of the syringe.
摘要翻译：一种药物输送装置（10），包括具有开口端的筒的注射器（12）和容纳在所述筒中的可轴向移动的塞子（18），所述塞子将所述塞子的轴向前方的第一腔室与所述塞子的轴向向后的第二腔室分开塞子。所述药物输送装置还包括可扩张驱动壳体（24），所述可扩张驱动壳体（24）布置成从推进剂源（36）接收用于提供蒸汽压力的推进剂，所述可膨胀驱动壳体具有与所述第二腔室流体连通的窄通道。当从推进剂源接收推进剂时，可膨胀驱动壳体可膨胀，并且在膨胀时引起注射器的向前轴向移动。引入到可膨胀壳体中的推进剂可以穿过狭窄的通道进入第二腔室，并引起塞子在筒体中的向前轴向移动，以通过开口端排出包含在第一腔室中的药物，其中塞子在筒体中的轴向运动开始在注射器的轴向移动之后。

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