WO2020047767A1 - 可弃组件及流体输送系统 - Google Patents

可弃组件及流体输送系统 Download PDF

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Publication number
WO2020047767A1
WO2020047767A1 PCT/CN2018/104122 CN2018104122W WO2020047767A1 WO 2020047767 A1 WO2020047767 A1 WO 2020047767A1 CN 2018104122 W CN2018104122 W CN 2018104122W WO 2020047767 A1 WO2020047767 A1 WO 2020047767A1
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WO
WIPO (PCT)
Prior art keywords
disposable
interface
pipeline
fluid
end portion
Prior art date
Application number
PCT/CN2018/104122
Other languages
English (en)
French (fr)
Inventor
陈志秋
蓝敬衡
Original Assignee
深圳市迈威生物科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市迈威生物科技有限公司 filed Critical 深圳市迈威生物科技有限公司
Priority to PCT/CN2018/104122 priority Critical patent/WO2020047767A1/zh
Priority to CN201880044319.0A priority patent/CN110869069B/zh
Publication of WO2020047767A1 publication Critical patent/WO2020047767A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/007—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • A61M5/16881—Regulating valves

Definitions

  • the present application relates to the field of medical devices, and in particular, to a disposable component and a fluid delivery system that can be used to establish a fluid connection between a fluid dispensing device and a metering device in a patient's vein.
  • Contrast agent dispensing systems are well known in the medical device art.
  • Known dispensing systems typically include a lancet at one end for engaging a container of contrast agent, and at the other end a Luer connection to the container to the manifold.
  • the other port of the manifold is connected to a syringe suitable for applying fluid into a patient's vein.
  • many dispensing systems include a reusable device with a lancet and a disposable device with a luer outlet, which can be connected to a syringe for intravenous injection of a patient by changing
  • the single-use device enables one large-capacity contrast container to be used by multiple patients.
  • the object of the present invention is to provide a new disposable component and a fluid delivery system.
  • the present invention provides a disposable assembly for connecting a fluid distribution device and a quantitative device in a patient's vein.
  • the disposable assembly includes a first disposable tube, a second disposable tube, and a tube switching device.
  • the first disposable tube The road has a first upstream end portion and a first downstream end portion
  • the second disposable pipe has a second upstream end portion and a second downstream end portion
  • the first downstream end portion and the second upstream end portion are detachable Connection
  • the first disposable line is provided with a first check valve capable of allowing fluid to flow from the fluid distribution device toward the metering device and preventing fluid from flowing back from the metering device toward the fluid distribution device
  • the pipeline switching device has a first interface, a second interface, and a third interface.
  • the first interface is connected to the second downstream end.
  • the second interface can be detachably connected to the metering device.
  • the third interface can be detachably connected to an external device for injecting and / or extracting fluid.
  • the pipeline switching device has a first working state and a second working state that can be switched with each other. In the first working state, Said the An interface is in communication with the second interface so that the second disposable pipeline can communicate with the metering device; in the second working state, the second interface is in communication with the third interface.
  • the external device can be used to inject liquid medicine and / or draw blood into the quantitative device in the vein; when the third interface is not installed and connected to the external device, The third interface communicates with the outside atmosphere, so that a blood return test can be performed.
  • the second disposable line is provided with a second one-way valve capable of allowing fluid to flow from the fluid distribution device toward the metering device and preventing fluid from flowing back from the metering device toward the fluid distribution device.
  • the second check valve is located upstream of the pipeline switching device.
  • the pipeline switching device is a three-way knob valve.
  • the pipeline switching device may also be a four-way valve, a five-way valve, or other devices capable of switching and conducting multiple fluid channels.
  • a fluid delivery system includes a fixed component and a disposable component.
  • the fixed component includes a first branch pipeline, a second branch pipeline, and a common pipeline which are Y-connected.
  • the two first pipe joints of the first liquid storage device and the first injection device, and the second branch pipe has two second pipe joints that can respectively connect the second liquid storage device and the second injection device, and the common
  • the output port of the pipeline is detachably connected to the first upstream end of the first disposable pipeline.
  • Fixed components can be reused.
  • a fluid delivery system includes a fluid distribution device and the disposable component.
  • the fluid distribution device includes a first liquid storage device, a second liquid storage device, a first injection device, a second injection device, and a fixed component.
  • the fixed component includes a first branch pipeline, a second branch pipeline, and a common pipeline connected in a Y-shape.
  • the first liquid storage device and the first injection device are both connected to the first branch pipeline, and the second The liquid storage device and the second injection device are both connected to the second branch pipeline, and the common pipeline is detachably connected to the first upstream end of the disposable component.
  • the beneficial effect of the present invention is that the setting of a check valve can prevent the back side of the patient connected with the second disposable pipeline from the occurrence of medicinal fluid or blood, and the check valve can prevent bacteria;
  • the purpose of observing the blood return can be achieved by switching the working state, and at the same time, it is convenient to add the medicine solution or draw blood on the patient side.
  • FIG. 1 is a schematic structural diagram of a fluid delivery system according to this embodiment
  • FIG. 2 is a schematic structural diagram of a disposable component according to this embodiment.
  • the disposable assembly can be used to connect the fluid distribution device 12 with a metering device in a patient's end vein, and includes a first disposable tube 10 and a second disposable tube 11 which are detachably connected.
  • the first disposable pipe 10 has opposite ends, which are a first upstream end portion and a first downstream end portion, respectively.
  • the second disposable pipe 11 has opposite ends, which are a second upstream end portion and a second downstream end portion, respectively.
  • the second upstream end portion is detachably connected to the first downstream end portion.
  • a first one-way valve 3a is provided in the middle of the first disposable line 10, which can allow fluid to flow from the fluid distribution device toward the metering device and prevent the fluid from flowing back from the metering device toward the fluid distribution device, that is, The first check valve 3a allows the fluid to flow in the forward direction and prevents the fluid from flowing back in the reverse direction.
  • the second disposable line 11 is provided with a second check valve 3b in the middle, which can allow the fluid to flow from the fluid distribution device toward the metering device and prevent the fluid from flowing back from the metering device toward the fluid distribution device, that is, The second check valve 3b allows the fluid to flow in the forward direction and prevents the fluid from flowing back in the reverse direction.
  • the second downstream end of the second disposable pipeline 11 is provided with a pipeline switching device 5.
  • the pipeline switching device 5 has a first interface 13, a second interface 14 and a third interface 15.
  • the first interface 13 is connected to the second downstream end
  • the second interface 14 is connected to the extension pipe 2e, which can be detachably connected to the metering device, and the third interface 15 can be used to inject and / or extract fluid
  • the external device 6 is detachably connected.
  • the pipeline switching device 5 has a first working state and a second working state that can be switched with each other. In the first working state, the first interface 13 communicates with the second interface 14 so that the second disposable pipeline 11 passes through the extended pipeline 2e.
  • the second interface 14 communicates with the third interface 15.
  • the quantitative device can communicate with the external device 6, so that the external device 6 can communicate with the quantitative device. Injecting liquid medicine or extracting patient's blood; when the third interface 15 is not installed and connected to the external device 6, that is, when the third interface 15 is opened to the outside atmosphere, it can allow the patient's venous blood to return to the extension tube under the action of his own blood pressure Within 2e, it is possible to check whether the dosing device has been accurately inserted into the patient's vein at the patient end.
  • the first disposable tube 10 is located near the fluid distribution device and away from the patient end, and the second disposable tube 11 is located near the patient end and away from the fluid distribution device. With respect to the patient end, the first disposable tube 10 is located in the second disposable tube Upstream of road 11.
  • the first disposable pipe 10 and the second disposable pipe 11 are detachably connected, that is, the first disposable pipe and the second disposable pipe have a connection state. At this time, the fluid can be passed through the first disposable pipe Flow into the second disposable pipeline; the first disposable pipeline and the second disposable pipeline have a disassembled state. At this time, the first disposable pipeline and the second disposable pipeline are separated.
  • Removable connections such as threaded connections, Luer connections, snap connections, or other existing detachable connections that have two states of disassembly and connection.
  • the detachable connection can usually be achieved through existing joints.
  • joints 1a, 4a can be provided at the first upstream end, the first downstream end, the second upstream end, and the end of the extension pipe connected to the metering device.
  • 1b, 4b connectors such as various connectors.
  • the first disposable pipe 10 may be composed of one section of connecting pipes or at least two sections of connecting pipes 2a, 2b having the same or different lengths.
  • the first check valve 3a may be located at an intermediate position of the first disposable pipe or at a position biased toward the first upstream end.
  • the second disposable pipeline 11 may be composed of one connection pipeline or at least two connection pipelines 2c, 2d of the same length or different lengths.
  • the second check valve 3 b may be located at an intermediate position of the second disposable pipe or at a position biased to the second upstream end, that is, the second check valve 3 b may be located upstream of the pipe switching device 5.
  • the metering device may be a syringe, injection needle, or other device capable of being inserted into a patient's vein and capable of injecting liquid medicine and drawing blood.
  • the external device may be a syringe, a needle, or other device capable of injecting and / or extracting fluid.
  • the fluid distribution device can inject two or more fluids into a patient's vein through a metering device.
  • the pipeline switching device has two working states, which may have a switching part, and realizes switching between different working states by changing the position of the switching part.
  • the line switching device may be a three-way rotary valve, or other device capable of switching between at least two fluid channels.
  • FIG. 1 and FIG. 2 it is a fluid delivery system with blood collection and dosing functions, which includes a first disposable tube 10 and a second disposable tube 11.
  • the first disposable pipe 10 has a first upstream end portion, a first downstream end portion, and a first intermediate portion located between the first upstream and downstream end portions, respectively.
  • the fluid flows from the first upstream end to the first downstream end, and the direction of the fluid flow is defined as a forward direction, and the direction opposite to the forward direction is defined as a reverse direction.
  • the first check valve 3a is provided at the first middle portion of the first disposable pipeline, which can ensure that the first disposable pipeline is conducted in the forward direction and blocked in the reverse direction, so that the fluid passes through in the forward direction, is closed in the reverse direction, and Antibacterial function.
  • a first upstream end portion of the first disposable pipeline is used for detachable connection with the fluid distribution device 12, and a first downstream end portion of the first disposable pipeline is detachably connected with the second disposable pipeline.
  • the second disposable pipe 11 includes a second upstream end portion, a second downstream end portion, and a second intermediate portion located between the second upstream and downstream end portions, respectively.
  • the fluid flows from the second upstream end to the second downstream end.
  • the second check valve 3b is provided in the second middle portion, and can realize the functions of the fluid passing in the forward direction, sealing in the reverse direction, and sterilization.
  • the second disposable pipeline 11 is also provided with a pipeline switching device 5, which has a first working state and a second working state.
  • a pipeline switching device 5 which has a first working state and a second working state.
  • the extension tube 2e communicates with the patient-side metering device.
  • the metering device, the extension tube 2e, and the external device 6 communicate with each other.
  • the pipeline switching device may be a three-way knob valve, which can switch the first fluid channel and the second fluid channel to conduct electricity.
  • the first fluid channel includes an interconnected quantitative device, an extended pipeline 2e, and a second disposable pipeline.
  • the second fluid channel includes, for example, a quantitative device, an extension pipe 2e, and an external device connected to each other.
  • the first upstream end portion, the first downstream end portion, the second upstream end portion, and the end of the extension pipeline connected with the dosing device may be provided with joints 1a, 4a, 1b, and 4b.
  • the joints such as connectors are realized through the connectors Reliable and stable connection of corresponding parts.
  • the second disposable pipe 11 may have a second left connecting pipe 2c and a second right connecting pipe 2d.
  • the second upstream end of the second left connecting pipe is detachably connected to the first disposable pipe.
  • the check valve 3b is connected to the second left connection pipe 2c and the second right connection pipe 2d, and the second downstream end of the second right connection pipe 2d is connected to the pipe switching device 5.
  • the fluid delivery system includes a fluid distribution device 12, a first disposable pipe 10, and a second disposable pipe.
  • Circuit 11, the first disposable tube 10 and the second disposable tube 11 are detachably connected, so that fluid can be delivered from the fluid distribution device to a metering device in a patient's vein.
  • the fluid distribution device 12 can block bacteria in one direction and prevent backflow, and it can be reused.
  • the first disposable line 10 is used to establish a fluid connection for delivering a medicinal solution from a fluid distribution device toward a patient-side patient's vein in a metering device, and includes a connector 1a connected to an output port of the fluid distribution device 12, the connector 1a having a closed Leak-free and removable.
  • the connection pipe 2a connects the joint 1a and the check valve 3a, which has a fluid transfer function; the connection pipe 2b connects the check valve 3a and the joint 4a, which has a fluid transfer function; the joint 4a connects the inlet of the second disposable pipe 11 Liquid port (ie connector 1b), which has the function of sealing and preventing leakage and can be removed.
  • the second disposable tube 11 is used to establish a fluid connection for delivering a medicinal solution from the first disposable tube 10 toward the patient's vein in the patient's vein, and includes a connector 1b, and the connector 1b is connected to the connector 4a of the first disposable tube 10. It has the function of sealing and preventing leakage and can be disassembled; the connecting pipe 2c connects the joint 1b and the check valve 3b, which has the function of conveying fluid; the connecting pipe 2d connects the check valve 3b and the three-way knob valve 5, which has Fluid delivery function; the three-way knob valve 5 communicates with the extension tube 2e and the joint 4b, and can deliver fluid into the patient's vein.
  • the external device 6 can freely add medicine liquid to the patient's vein or draw the patient's blood.
  • the patient's venous blood can be allowed to return to the extension tube 2e, thereby checking whether the quantitative device punctures correctly.
  • the check valve 3a can prevent bacteria from entering the fluid distribution device to be injected from the connector 4a after the second disposable tube 11 is removed; Reflow in 11 directions.
  • the second disposable tube 11 needs to be removed, and the first disposable tube 10 remains on the fluid distribution device.
  • the first disposable tube 10 serves to prevent Foreign material contamination enters the fluid distribution device; when the second patient is ready, remove the first disposable tube 10, reconnect the new first disposable tube 10 and the second disposable tube 11, and proceed to the next A contrast injection.
  • the first disposable line 10 may be provided with one or more check valves 3a, which have the functions of preventing bacteria and preventing backflow.
  • the second disposable line 11 may be provided with one or more one-way valves 3b and three-way knob valves 5.
  • the one-way valve 3b has functions of preventing bacteria and preventing backflow.
  • the three-way knob valve 5 is connected to the second disposable line 11, the external device 6 and the patient end. The three-way knob valve can realize the communication or closing of the corresponding fluid channel.
  • the joints 1a, 1b, 4a, 4b may have a universal screw, such as a Luer joint that can be adapted to the field of medical equipment, which has a leak-proof and leak-proof function and can be disassembled.
  • a universal screw such as a Luer joint that can be adapted to the field of medical equipment, which has a leak-proof and leak-proof function and can be disassembled.
  • the fluid distribution device 12 may be an existing device, which may include a first injection device 7, a second injection device 7, a first liquid storage device 8, a second liquid storage device 9, and a Y-shaped fixing assembly.
  • the fixed component includes a first branch pipeline 20, a second branch pipeline 30, and a common pipeline 40.
  • the first branch line 20 may have two first pipe joints 16 which are respectively connected to the first injection device 7 and the first liquid storage device 8.
  • the second branch line 30 may have two second pipe joints 17 which are respectively connected to the second injection device 7 and the second liquid storage device 9.
  • the first injection device as an example, it first sucks the medicinal solution from the first liquid storage device, and then injects the medicinal solution through the first branch pipe 20 and the common pipe 40 into the first disposable pipe 10.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Pulmonology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

一种可弃组件及流体输送系统，用于连接流体分配装置（12）与患者静脉中的定量装置，包括第一可弃管路（10）、第二可弃管路（11）及管路切换装置（5），所述第一可弃管路（10）具有第一上游端部及第一下游端部，所述第二可弃管路（11）具有第二上游端部及第二下游端部，所述第一下游端部和第二上游端部可拆卸连接，所述第一可弃管路（10）设有第一单向阀（3a），所述管路切换装置（5）能够使所述定量装置与外置注射装置（6）连通，设置所述单向阀（3a）能够防止与所述第二可弃管路（11）连接的病人端有药液或者血液回流的情况发生，且能阻菌，设置所述管路切换装置（5）能够在不分离所述第一可弃管路（10）和所述第二可弃管路（11）的情况下，通过切换工作状态来实现观察回血的目的，同时方便在病人端加注药液或者抽取血液。

Description

可弃组件及流体输送系统 技术领域
本申请涉及医疗器械领域，尤其是关于一种能够用于在流体分配装置和患者静脉中定量装置之间建立流体连接的可弃组件及流体输送系统。
 背景技术
造影剂分配系统在医疗器械领域内是熟知的，已知的分配系统通常包括一在某一末端用于接合容纳造影剂容器的刺针，和在另一末端带有用鲁尔接头来连接容器到歧管的一个端口的机构。歧管的另一端口被连接到一合适施加流体进入病人静脉的注射器。为努力避免病人的交叉感染，许多分配系统包括一带有刺针的可重复使用装置和带有鲁尔接头的出口的一次性装置，该鲁尔接头能够与用于患者静脉注射的注射器连接，通过更换一次性装置，使一个大容量的造影剂容器能够供多个病人使用。
 技术问题
本发明的目的在于提供一种新的可弃组件及流体输送系统。
 技术解决方案
本发明提供一种可弃组件，用于连接流体分配装置与患者静脉中的定量装置，包括第一可弃管路、第二可弃管路及管路切换装置，所述第一可弃管路具有第一上游端部及第一下游端部，所述第二可弃管路具有第二上游端部及第二下游端部，所述第一下游端部和第二上游端部可拆卸连接，所述第一可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第一单向阀，所述管路切换装置具有第一接口、第二接口及第三接口，所述第一接口与所述第二下游端部连接，所述第二接口能够与所述定量装置可拆卸连接，所述第三接口能够与用于注入和/或抽取流体的外置装置可拆卸连接，所述管路切换装置具有能够相互切换的第一工作状态和第二工作状态，在所述第一工作状态，所述第一接口与所述第二接口连通而使所述第二可弃管路能够与所述定量装置连通；在所述第二工作状态，所述第二接口与所述第三接口连通。在第二工作状态时，第三接口与外置装置安装连接时，可以通过外置装置向静脉中的定量装置注入药液和/或抽取血液；第三接口不与外置装置安装连接时，第三接口与外界大气连通，从而可以进行血液回流检查。
所述第二可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第二单向阀。所述第二单向阀位于所述管路切换装置的上游。
所述管路切换装置是三通旋钮阀。当然，管路切换装置也可以是四通阀、五通阀或其它能够实现多个流体通道切换导通的装置。
一种流体输送系统，包括固定组件及所述可弃组件，固定组件包括Y形连接的第一分支管路、第二分支管路及公共管路，所述第一分支管路具有能够分别连接第一贮液装置及第一注射装置的两个第一管接头，所述第二分支管路具有能够分别连接第二贮液装置和第二注射装置的两个第二管接头，所述公共管路的输出端口与所述第一可弃管路的第一上游端部可拆卸连接。固定组件可以重复使用。
一种流体输送系统，包括流体分配装置及所述可弃组件，所述流体分配装置包括第一贮液装置、第二贮液装置、第一注射装置、第二注射装置及固定组件，所述固定组件包括Y形连接的第一分支管路、第二分支管路及公共管路，所述第一贮液装置及第一注射装置均与所述第一分支管路连接，所述第二贮液装置及第二注射装置均与所述第二分支管路连接，所述公共管路与所述可弃组件的第一上游端部可拆卸连接。
 有益效果
本发明的有益效果是：设置单向阀能够防止与第二可弃管路连接的病人端有药液或者血液回流的情况发生，且单向阀能阻菌；设置管路切换装置能够在不分离第一可弃管路和第二可弃管路的情况下，能够通过切换工作状态来实现观察回血的目的，同时方便在病人端加注药液或者抽取血液。
 附图说明
图1是本实施方式流体输送系统的结构示意图；
图2是本实施方式可弃组件的结构示意图。
 本发明的实施方式
具体实施方式
下面通过具体实施方式结合附图对本发明作进一步详细说明。
如图1及图2所示，其为可弃组件的一种实施方式。可弃组件能够用于连接流体分配装置12与病人端静脉中的定量装置，其包括可拆卸连接的第一可弃管路10及第二可弃管路11。第一可弃管路10具有相对的两端，分别为第一上游端部和第一下游端部。第二可弃管路11具有相对的两端，分别为第二上游端部和第二下游端部，第二上游端部与第一下游端部可拆卸连接。第一可弃管路10的中部设有第一单向阀3a，该第一单向阀3a能够允许流体从流体分配装置朝向定量装置流动并且能够防止流体从定量装置朝向流体分配装置回流，即第一单向阀3a允许流体在正方向流动并防止流体在反方向回流。
第二可弃管路11的中部设有第二单向阀3b，该第二单向阀3b能够允许流体从流体分配装置朝向定量装置流动并且能够防止流体从定量装置朝向流体分配装置回流，即第二单向阀3b允许流体在正方向流动并防止流体在反方向回流。
第二可弃管路11的第二下游端部设有管路切换装置5，该管路切换装置5具有第一接口13、第二接口14及第三接口15。第一接口13与第二下游端部连接，第二接口14与延伸管路2e连接，该延伸管路2e能够与定量装置可拆卸连接，第三接口15能够与用于注入和/或抽取流体的外置装置6可拆卸连接。管路切换装置5具有能够相互切换的第一工作状态和第二工作状态，在第一工作状态，第一接口13与第二接口14连通，使第二可弃管路11通过延伸管路2e与定量装置连通，使流体能够从第二可弃管路11流入定量装置。在第二工作状态，第二接口14与第三接口15连通，当第三接口15与外置装置6安装连接时，定量装置能够与外置装置6连通，从而外置装置6能够向定量装置注入药液或者抽取患者血液；当第三接口15不与外置装置6安装连接时，即，第三接口15向外界大气敞开时，能够允许在自身血压作用下患者静脉血液回流至延伸管路2e内，从而能够检查定量装置是否已经被准确插入病人端患者静脉。
第一可弃管路10靠近流体分配装置而远离病人端，第二可弃管路11靠近病人端而远离流体分配装置，相对于病人端，第一可弃管路10位于第二可弃管路11的上游。第一可弃管路10与第二可弃管路11可拆卸连接，即，第一可弃管路和第二可弃管路具有连接状态，此时，流体可以由第一可弃管路流入第二可弃管路；第一可弃管路和第二可弃管路具有拆卸状态，此时，第一可弃管路和第二可弃管路分离。可拆卸连接如螺纹连接、鲁尔接头连接、卡扣连接或者其它具有拆卸和连接两种状态的现有可拆卸连接方式。可拆卸连接通常可以通过现有接头实现，如在第一上游端部、第一下游端部、第二上游端部及延伸管路的与定量装置连接的端部均可以设置接头1a、4a、1b、4b，接头如各种连接器。
第一可弃管路10可以由一段连接管路或至少两段长度相同或相异的连接管路2a、2b组成。第一单向阀3a可以位于第一可弃管路的中间位置或者偏向第一上游端部的位置。第二可弃管路11可以由一段连接管路或至少两段长度相同或相异的连接管路2c、2d组成。第二单向阀3b可以位于第二可弃管路的中间位置或者偏向第二上游端部的位置，即第二单向阀3b可以位于管路切换装置5的上游。
定量装置可以是注射器、注射针或者其它能够插入患者静脉并能够注入药液和抽取血液的装置。外置装置可以是注射器、注射针或者其它能够注入和/或抽取流体的装置。流体分配装置可以将两种或两种以上的流体通过定量装置注入患者静脉。管路切换装置具有两个工作状态，其可以具有切换部，通过改变切换部的位置，来实现不同工作状态之间的切换。管路切换装置可以是三通旋钮阀，或者其它能够实现至少两个流体通道之间切换的装置。
如图1及图2所示，其为具采血及加药功能的流体输送系统，其包括第一可弃管路10及第二可弃管路11。第一可弃管路10具有分别位于两端的第一上游端部、第一下游端部及位于第一上游、下游端部之间的第一中间部。流体自第一上游端部流向第一下游端部，该流体流动的方向定义为正方向，与该正方向相反的方向定义为反方向。第一单向阀3a设于第一可弃管路的第一中间部，其能够保证第一可弃管路在正方向导通而反方向阻断，实现流体正方向通过、反方向密闭及阻菌的功能。第一可弃管路的第一上游端部用于与流体分配装置12可拆卸连接，第一可弃管路的第一下游端部与第二可弃管路可拆卸连接。
第二可弃管路11包括分别位于两端的第二上游端部、第二下游端部及位于第二上游、下游端部之间的第二中间部。流体自第二上游端部流向第二下游端部。第二单向阀3b设于第二中间部，其能够实现流体正方向通过、反方向密闭及阻菌的功能。
第二可弃管路11上还设有管路切换装置5，管路切换装置具有第一工作状态和第二工作状态，在第一工作状态，在正方向上，第二可弃管路11、延伸管路2e与病人端定量装置连通。在第二工作状态，需要注入药液或抽取血液时，定量装置、延伸管路2e和外置装置6连通。
管路切换装置可以是三通旋钮阀，其能够使第一流体通道和第二流体通道切换导通，第一流体通道如包括相互连接的定量装置、延伸管路2e及第二可弃管路11，第二流体通道如包括相互连接的定量装置、延伸管路2e及外置装置。
第一上游端部、第一下游端部、第二上游端部及延伸管路的与定量装置连接的端部可以设有接头1a、4a、1b、4b，接头如连接器，通过连接器实现对应部位可靠稳定的连接。
第二可弃管路11可以具有第二左连接管路2c及第二右连接管路2d，第二左连接管路的第二上游端部与第一可弃管路可拆卸连接，第二单向阀3b连接第二左连接管路2c及第二右连接管路2d，第二右连接管路2d的第二下游端部与管路切换装置5连接。
如图1及图2所示，其为本发明带有采血及加药功能的流体输送系统的一种实施方式，其包括流体分配装置12、第一可弃管路10及第二可弃管路11，第一可弃管路10与第二可弃管路11可拆卸连接，从而能够将流体从流体分配装置输送到患者静脉中的定量装置。流体分配装置12可单向阻菌、防逆流，其能重复使用。第一可弃管路10用于建立从流体分配装置朝向病人端患者静脉中定量装置输送药液的流体连接，其包括接头1a，接头1a连接流体分配装置12的输出端口，该接头1a具有密闭不漏液的功能且能够拆卸。连接管路2a连接接头1a与单向阀3a，其具有输送流体功能；连接管路2b连接单向阀3a与接头4a，其具有输送流体功能；接头4a连接第二可弃管路11的进液端口（即接头1b），其具有密闭不漏液的功能且能够拆卸。第二可弃管路11用于建立从第一可弃管路10朝向病人端患者静脉中定量装置输送药液的流体连接，包括接头1b，接头1b连接第一可弃管路10的接头4a，其具有密闭不漏液的功能且能够拆卸；连接管路2c连接接头1b与单向阀3b，其具有输送流体功能；连接管路2d连接单向阀3b与三通旋钮阀5，其具有输送流体功能；三通旋钮阀5连通延伸管路2e及接头4b而能够输送流体进入患者静脉。通过外置装置6可以向患者静脉自由加入药液或者抽取患者血液，当三通旋钮阀旋转到指定位置时，可允许由患者静脉血液回流至延伸管路2e，从而查看定量装置是否穿刺正确。单向阀3a能够防止第二可弃管路11摘除后细菌由接头4a进入待注射的流体分配装置中；单向阀3a、3b能够阻止来自病人的血液、药液朝向可弃管路10，11方向的回流。
当第一个病人完成造影剂注射时，需将第二可弃管路11拆卸下来，第一可弃管路10仍保留在流体分配装置上，此时第一可弃管路10起到防止外来物质污染进入流体分配装置中；待第二个病人准备就绪后，将第一可弃管路10拆除，重新连接新的第一可弃管路10和第二可弃管路11，进行下一造影剂注射。
第一可弃管路10可以设有一个或者多个单向阀3a，该单向阀具有阻菌及防逆流的功能。第二可弃管路11可以设有一个或多个单向阀3b及三通旋钮阀5，该单向阀3b具有阻菌及防逆流的功能。三通旋钮阀5连接第二可弃管路11、外置装置6和病人端，通过三通旋钮阀可以实现相应流体通道的连通或关闭。
接头1a、1b、4a、4b可以具有一种通用螺牙，如能够适配于医疗器械领域的鲁尔接头，其具有密闭不漏液功能且能够拆卸。
流体分配装置12可以是现有装置，其可以包括第一注射装置7、第二注射装置7、第一贮液装置8、第二贮液装置9及Y形固定组件。固定组件包括第一分支管路20、第二分支管路30及公共管路40。第一分支管路20可以具有两个第一管接头16，其分别连接第一注射装置7及第一贮液装置8。第二分支管路30可以具有两个第二管接头17，其分别连接第二注射装置7及第二贮液装置9。使用时，以第一注射装置为例，其首先从第一贮液装置吸取药液，再将药液通过第一分支管路20、公共管路40注入第一可弃管路10。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换。

Claims (13)

  1. 一种可弃组件，用于连接流体分配装置与患者静脉中的定量装置，包括第一可弃管路及第二可弃管路，所述第一可弃管路具有第一上游端部及第一下游端部，所述第二可弃管路具有第二上游端部及第二下游端部，所述第一下游端部和第二上游端部可拆卸连接，所述第一可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第一单向阀，其特征在于，还包括管路切换装置，所述管路切换装置具有第一接口、第二接口及第三接口，所述第一接口与所述第二下游端部连接，所述第二接口能够与所述定量装置可拆卸连接，所述第三接口能够与用于注入和/或抽取流体的外置装置可拆卸连接，所述管路切换装置具有能够相互切换的第一工作状态和第二工作状态，在所述第一工作状态，所述第一接口与所述第二接口连通而使所述第二可弃管路能够与所述定量装置连通；在所述第二工作状态，所述第二接口与所述第三接口连通。
  2. 如权利要求1所述的可弃组件，其特征在于，所述第二可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第二单向阀。
  3. 如权利要求2所述的可弃组件，其特征在于，所述第二接口设有延伸管路，所述第二接口通过所述延伸管路连接所述定量装置。
  4. 如权利要求3所述的可弃组件，其特征在于，所述第二可弃管路包括第二左连接管路及第二右连接管路，所述第二上游端部是所述第二左连接管路的一端，所述第二单向阀连接所述第二左连接管路的另一端和所述第二右连接管路的一端，所述第二右连接管路的另一端是所述第二下游端部。
  5. 如权利要求1所述的可弃组件，其特征在于，所述管路切换装置是三通旋钮阀。
  6. 如权利要求1所述的可弃组件，其特征在于，所述外置装置是注射装置。
  7. 如权利要求1所述的可弃组件，其特征在于，所述第一上游端部、第一下游端部及第二上游端部均设有连接器。
  8. 一种流体输送系统，包括固定组件及可弃组件，所述固定组件包括Y形连接的第一分支管路、第二分支管路及公共管路，所述第一分支管路具有能够分别连接第一贮液装置及第一注射装置的两个第一管接头，所述第二分支管路具有能够分别连接第二贮液装置和第二注射装置的两个第二管接头，所述可弃组件用于连接流体分配装置与患者静脉中的定量装置，所述可弃组件包括第一可弃管路及第二可弃管路，所述第一可弃管路具有第一上游端部及第一下游端部，所述第二可弃管路具有第二上游端部及第二下游端部，所述第一上游端部与所述公共管路可拆卸连接，所述第一下游端部和第二上游端部可拆卸连接，所述第一可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第一单向阀，其特征在于，所述可弃组件还包括管路切换装置，所述管路切换装置具有第一接口、第二接口及第三接口，所述第一接口与所述第二下游端部连接，所述第二接口能够与所述定量装置可拆卸连接，所述第三接口能够与用于注入和/或抽取流体的外置装置可拆卸连接，所述管路切换装置具有能够相互切换的第一工作状态和第二工作状态，在所述第一工作状态，所述第一接口与所述第二接口连通而使所述第二可弃管路能够与所述定量装置连通；在所述第二工作状态，所述第二接口与所述第三接口连通。
  9. 如权利要求8所述的流体输送系统，其特征在于，所述第二可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第二单向阀。
  10. 如权利要求9所述的流体输送系统，其特征在于，所述第二接口设有延伸管路，所述第二接口通过所述延伸管路连接所述定量装置。
  11. 如权利要求10所述的流体输送系统，其特征在于，所述管路切换装置是三通旋钮阀。
  12. 一种流体输送系统，包括流体分配装置及可弃组件，所述流体分配装置包括第一贮液装置、第二贮液装置、第一注射装置、第二注射装置及固定组件，所述固定组件包括Y形连接的第一分支管路、第二分支管路及公共管路，所述第一贮液装置及第一注射装置均与所述第一分支管路连接，所述第二贮液装置及第二注射装置均与所述第二分支管路连接，所述可弃组件用于连接所述流体分配装置与患者静脉中的定量装置，所述可弃组件包括第一可弃管路及第二可弃管路，所述第一可弃管路具有第一上游端部及第一下游端部，所述第二可弃管路具有第二上游端部及第二下游端部，所述第一上游端部与所述公共管路可拆卸连接，所述第一下游端部和第二上游端部可拆卸连接，所述第一可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第一单向阀，其特征在于，所述可弃组件还包括管路切换装置，所述管路切换装置具有第一接口、第二接口及第三接口，所述第一接口与所述第二下游端部连接，所述第二接口能够与所述定量装置可拆卸连接，所述第三接口能够与用于注入和/或抽取流体的外置装置可拆卸连接，所述管路切换装置具有能够相互切换的第一工作状态和第二工作状态，在所述第一工作状态，所述第一接口与所述第二接口连通而使所述第二可弃管路能够与所述定量装置连通；在所述第二工作状态，所述第二接口与所述第三接口连通。
  13. 如权利要求12所述的流体输送系统，其特征在于，所述第二可弃管路设有能够允许流体从所述流体分配装置朝向所述定量装置流动并且能够防止流体从所述定量装置朝向所述流体分配装置回流的第二单向阀。
PCT/CN2018/104122 2018-09-05 2018-09-05 可弃组件及流体输送系统 WO2020047767A1 (zh)

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