WO2021121156A1 - 一种真空采血管取样结构 - Google Patents

一种真空采血管取样结构 Download PDF

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Publication number
WO2021121156A1
WO2021121156A1 PCT/CN2020/135705 CN2020135705W WO2021121156A1 WO 2021121156 A1 WO2021121156 A1 WO 2021121156A1 CN 2020135705 W CN2020135705 W CN 2020135705W WO 2021121156 A1 WO2021121156 A1 WO 2021121156A1
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WO
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Prior art keywords
sampling
pipeline
blood collection
collection tube
inflation
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Application number
PCT/CN2020/135705
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English (en)
French (fr)
Inventor
郝书顺
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石家庄禾柏生物技术股份有限公司
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Publication of WO2021121156A1 publication Critical patent/WO2021121156A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154—Devices using pre-evacuated means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes

Definitions

  • the invention relates to a sampling structure of a vacuum blood collection tube.
  • Vacuum blood collection tubes are very common in modern medical treatment. They are often used to collect human blood and then undergo a series of laboratory tests. In the actual testing process, blood samples in the blood collection tubes need to be taken multiple times. Currently, artificial blood collection is used. Way, which increases the risk of cross-infection.
  • the technical problem to be solved by the present invention is to provide a vacuum blood collection tube sampling structure, which can discharge blood from the vacuum blood collection tube.
  • a vacuum blood collection tube sampling structure which includes a seat body, a sampling needle arranged on the seat body for puncturing the blood collection tube, an inflation pipeline arranged on the seat body and connected with the sampling needle, and The sampling pipeline connected with the inflation pipeline and the air hole used to inflate the inflation pipeline and the sampling pipeline.
  • An inflation rubber valve is arranged between the air hole and the inflation pipeline, and a sampling rubber valve is arranged between the air hole and the sampling pipeline.
  • one end of the sampling pipeline is provided with a sampling port.
  • gas filling pipeline and the sampling pipeline are connected through a gas supply pipeline, and the air hole is connected with the gas supply pipeline.
  • sampling pipeline includes an end pipeline and a middle pipeline
  • sampling rubber valve is arranged on the pipeline between the air hole and the middle pipeline.
  • the middle pipeline is a continuous S shape.
  • a blind hole for placing the blood collection tube is provided on the upper end surface of the seat body, and the sampling needle is arranged at the bottom of the blind hole.
  • a rubber air inlet is provided on the air hole.
  • the positive effect of the present invention is that the present invention connects the inflation pipeline with valves, the sampling pipeline and the sampling needle, and sets the inflation hole to inflate the blood collection tube.
  • the sampling rubber valve of the sampling pipeline is closed and the inflation rubber is opened.
  • the valve inflates the blood collection tube through the air hole to increase the pressure in the blood collection tube.
  • the inflation is stopped, and then the sampling rubber valve and the inflation rubber valve are opened at the same time.
  • the blood in the blood collection tube flows back to the inflation tube and the sampling tube under the action of pressure.
  • close the inflation rubber valve and open the sampling rubber valve Inflate again through the air hole, and the blood will be blown out through the sampling port along the sampling pipeline.
  • the pressure difference is generated by inflating the blood collection tube, and the blood in the blood collection tube is reversed out of the blood collection tube by the pressure difference to realize the operation of sampling from the vacuum blood collection tube.
  • the automatic blood collection is realized through the equipment, which reduces manual operations and effectively prevents cross-infection. .
  • Figure 1 is a schematic diagram of the structure of the present invention.
  • Figure 2 is a schematic diagram of the structure of the sampling pipeline of the present invention.
  • Fig. 3 is a schematic diagram of the blind hole structure of the present invention.
  • the present invention includes a seat body 1, a blind hole 10 on the top of the seat body 1 for placing a vacuum blood collection tube, a sampling needle 9 is arranged in the blind hole 10, and the blood collection tube is inserted upside down in the blind hole Within 10, the sampling needle 9 pierces the blood collection tube and enters it.
  • the seat body 1 is provided with an inflation pipe 8 communicating with the sampling needle 9 and a sampling pipe communicating with the inflation pipe 8 through the air supply pipe 11, and the air hole 3 is connected to the air supply pipe 11, and the air hole 3 is connected to the air pump. Inject gas into the pipeline, and the air pump should ensure that there is always a certain pressure at the air holes 3 to prevent blood from flowing into the air pump when it flows back.
  • the two ends of the air supply pipeline 11 are respectively connected with the inflation pipeline 8 and the sampling pipeline.
  • An inflation rubber valve 5 is provided on the pipeline connecting the air hole 3 and the inflation pipeline 8, and on the pipeline connecting the air hole 3 and the sampling pipeline. Sampling rubber valve 4.
  • a rubber air inlet is provided on the air hole 3, which has better sealing performance when it is connected with an air pump.
  • the sampling pipeline includes a continuous S-shaped middle pipeline 6 and an end pipeline 7 connected to the middle pipeline 6 at one end.
  • the middle pipeline 6 is connected to the gas supply pipeline 11, and the other end of the end pipeline 7 is provided with sampling ⁇ 2.
  • the blood collection tube is first inserted upside down into the blind hole 10, and the sampling needle 9 is pierced into the blood collection tube. Open the inflation rubber valve 5, and close the sampling rubber valve 4, and use an air pump to inflate the air hole 3. At this time, the air hole 3, the air supply pipe 11, and the inflation pipe 8 are connected, and the blood sampling needle 9 is inflated into the blood collection tube to make the blood collection tube 9 The internal pressure is stronger than the outside air pressure to form a pressure difference. Then stop inflation and open the sampling rubber valve 4. At this time, the air supply pipe 11, the inflation pipe 8 and the sampling pipe form a passage. The inside of the blood collection tube is in communication with the outside atmosphere.
  • the blood in the blood collection tube flows into the sampling needle 9 To the gas filling pipe 8, the gas supply pipe 11 and the sampling pipe.
  • a liquid level detection port is provided at the lower end of the middle pipeline 6, and a sensor is corresponding to the liquid level detection port.
  • the inflation rubber valve 5 is closed, and the sampling rubber valve 4 is opened, and the air pump is turned on again to the air hole 3 is filled with air.
  • the air hole 3, the air supply pipe 11 and the sampling pipe form a passage, and the blood in the air supply pipe 11 and the sampling pipe will be discharged from the sampling port 2 to complete the sampling work of the vacuum blood collection tube.
  • the invention utilizes the pressure difference to discharge blood from the blood collection tube, and by controlling the pressure filled into the blood collection tube, the sampling volume can be controlled within a certain range, and the automatic blood collection can be realized.

Abstract

一种真空采血管取样结构，其包括座体（1）、设置在座体（1）上用于刺破采血管的取样针（9）、设置在座体（1）上与取样针（9）连通的充气管路（8）、与充气管路（8）连通的取样管路以及用于给充气管路（8）和取样管路充气的气孔（3），在气孔（3）与充气管路（8）之间设置有充气橡胶阀（5），在气孔（3）与取样管路之间设置有取样橡胶阀（4）；通过向采血管内充气产生压力差，利用压力差将采血管内的血液反向压出采血管，实现自动从真空采血管内进行取样的操作。

Description

一种真空采血管取样结构 技术领域
本发明涉及一种真空采血管取样结构。
 背景技术
真空采血管在现代医疗中使用非常普遍，常用于采集人体血液，之后再进行一系列的化验检测，在实际检测过程中，需要多次取用采血管内的血样，目前都是采用人工取血的方式，这就增加了交叉感染的风险。
 技术问题
本发明所要解决的技术问题是提供一种真空采血管取样结构，其可以实现将血液从真空采血管内排出。
 技术解决方案
本发明所采用的技术方案是：一种真空采血管取样结构，其包括座体、设置在座体上用于刺破采血管的取样针、设置在座体上与取样针连通的充气管路、与充气管路连通的取样管路以及用于给充气管路和取样管路充气的气孔，在气孔与充气管路之间设置有充气橡胶阀，在气孔与取样管路之间设置有取样橡胶阀。
进一步的，所述取样管路的一端设置有取样口。
进一步的，所述充气管路和取样管路通过供气管路连通，所述气孔与供气管路连通。
进一步的，所述取样管路包括末端管路以及中部管路，所述取样橡胶阀设置在气孔与中部管路之间的管路上。
进一步的，所述中部管路呈连续的S形。
进一步的，在所述座体的上端面设置有用于放置采血管的盲孔，所述取样针设置在盲孔的底部。
进一步的，在所述气孔上设置有橡胶进气口。
 有益效果
本发明的积极效果为：本发明通过将带有阀门的充气管路、取样管路与取样针连通，并且设置充气孔为采血管内进行充气，首先关闭取样管路的取样橡胶阀，打开充气橡胶阀通过气孔向采血管内充气，使采血管内的压力增大，充气一段时间后停止充气，然后同时打开取样橡胶阀和充气橡胶阀，在压强作用下采血管内的血液倒流回充气管路和取样管路，然后关闭充气橡胶阀打开取样橡胶阀，再次通过气孔充气，血液便会顺着取样管路经取样口被吹出。通过向采血管内充气产生压力差，利用压力差将采血管内的血液反向压出采血管内，实现从真空采血管内进行取样的操作，通过设备实现自动化取血，减少了人为操作，有效防止交叉感染。
 附图说明
图1为本发明结构示意图。
图2为本发明取样管路结构示意图。
图3为本发明盲孔结构示意图。
 本发明的实施方式
如附图1-3所示，本发明包括座体1、位于座体1顶部用于放置真空采血管的盲孔10，在盲孔10内设置有取样针9，采血管倒置插在盲孔10内，取样针9刺破采血管进入到其内部。
在座体1上设置有与取样针9连通的充气管路8以及通过供气管路11与充气管路8连通的取样管路，在供气管路11上连通有气孔3，气孔3与气泵连通向管路内打入气体，气泵应保证气孔3处始终有一定的压力，防止血液倒流的时候流入到气泵内。供气管路11的两端分别与充气管路8和取样管路连通，在气孔3与充气管路8连通的管路上设置有充气橡胶阀5，在气孔3与取样管路连通的管路上设置取样橡胶阀4。
为了提高气孔3的密闭性，在气孔3上设置有橡胶进气口，当其与气泵连接的时候密封性更好。
取样管路包括呈连续的S形的中部管路6以及一端与中部管路6连通的末端管路7，中部管路6与供气管路11连接，在末端管路7的另一端设置有取样口2。
本发明在使用时，首先将采血管倒置插入到盲孔10内，取样针9刺入到采血管内。打开充气橡胶阀5，并且关闭取样橡胶阀4，利用气泵向气孔3内充气，此时气孔3、供气管路11、充气管路8连通，通过取样针9向采血管内充气，使采血管9内的压强大于外界气压形成压强差。然后停止充气，打开取样橡胶阀4，此时供气管路11、充气管路8以及取样管路形成通路，采血管内部与外部大气连通，在压强作用下，采血管内的血液经取样针9流入到充气管路8、供气管路11以及取样管路。在中部管路6的下端设置有液位检测口，在液位检测口对应有传感器，当血液到达液位检测口时，关闭充气橡胶阀5，并且打开取样橡胶阀4，再次打开气泵向气孔3内充气，此时气孔3、供气管路11以及取样管路形成通路，供气管路11与取样管路内的血液便会被从取样口2排出，完成真空采血管的取样工作。
本发明利用压力差将血液从采血管内排出，通过控制充入到采血管内的压强，便可在一定范围内控制取样量，实现自动化取血。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围。

Claims (7)

  1. 一种真空采血管取样结构，其特征在于其包括座体（1）、设置在座体（1）上用于刺破采血管的取样针（9）、设置在座体（1）上与取样针（9）连通的充气管路（8）、与充气管路（8）连通的取样管路以及用于给充气管路（8）和取样管路充气的气孔（3），在气孔（3）与充气管路（8）之间设置有充气橡胶阀（5），在气孔（3）与取样管路之间设置有取样橡胶阀（4）。
  2. 根据权利要求1所述的一种真空采血管取样结构，其特征在于所述取样管路的一端设置有取样口（2）。
  3. 根据权利要求1所述的一种真空采血管取样结构，其特征在于所述充气管路（8）和取样管路通过供气管路（11）连通，所述气孔（3）与供气管路（11）连通。
  4. 根据权利要求1所述的一种真空采血管取样结构，其特征在于所述取样管路包括末端管路（7）以及中部管路（6），所述取样橡胶阀（4）设置在气孔（3）与中部管路（6）之间的管路上。
  5. 根据权利要求4所述的一种真空采血管取样结构，其特征在于所述中部管路（6）呈连续的S形。
  6. 根据权利要求1所述的一种真空采血管取样结构，其特征在于在所述座体（1）的上端面设置有用于放置采血管的盲孔（10），所述取样针（9）设置在盲孔（10）的底部。
  7. 根据权利要求1所述的一种真空采血管取样结构，其特征在于在所述气孔（3）上设置有橡胶进气口。
PCT/CN2020/135705 2019-12-19 2020-12-11 一种真空采血管取样结构 WO2021121156A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110881986A (zh) * 2019-12-19 2020-03-17 石家庄禾柏生物技术股份有限公司 一种真空采血管取样结构

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CN101603968A (zh) * 2009-07-14 2009-12-16 重庆天海医疗设备有限公司 血流变测量的封闭式自动检测装置
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