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Venous puncture needle with impedance detection function

An impedance detection and function technology, applied in the fields of fluid resistance measurement, needles, and drugs, etc., can solve the problem of not being able to judge whether the puncture needle has entered the blood vessel, etc., to reduce the risk of puncturing the venous blood vessel, and the signal is concise and not easy to be disturbed. Effect

Inactive Publication Date: 2020-07-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a venipuncture needle with a puncture detection function to solve the problem that the venipuncture robot cannot judge whether the puncture needle enters a blood vessel during venipuncture, and to provide a venipuncture needle with an impedance detection function

Method used

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  • Venous puncture needle with impedance detection function
  • Venous puncture needle with impedance detection function
  • Venous puncture needle with impedance detection function

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Effect test

specific Embodiment approach 1

[0014] Specific implementation mode one: combine Figure 1-Figure 3 Describe this embodiment mode, a venipuncture needle with impedance detection function described in this embodiment mode, it includes connector 2, it also includes needle head 1, hollow needle tube 3, electrode one 4 and electrode two 5, needle head 1 and hollow The needle tubes 3 are all installed on the connector 2 , the needle head 1 is connected to the second electrode 5 , and the hollow needle tube 3 is connected to the first electrode 4 .

[0015] When there is no blood in the needle 1 and the hollow needle 3 during operation, the electrode 2 5 on the needle 1 and the electrode 1 4 on the hollow needle 3 are disconnected; when there is blood in the needle 1 and the hollow needle 3, the electrode 2 5 on the needle 1 and the The electrode one 4 on the hollow needle tube 3 detects the electrical impedance in the blood.

specific Embodiment approach 2

[0016] Specific implementation mode two: combination Figure 1-Figure 3 This embodiment is described. In the venipuncture needle with impedance detection function described in this embodiment, the needle 1 and the hollow needle tube 3 are arranged opposite to each other, and the centerline of the needle head 1 and the centerline of the hollow needle tube 3 are coincidently arranged. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Specific implementation mode three: combination Figure 1-Figure 3 This embodiment is described. In the venipuncture needle with impedance detection function described in this embodiment, the needle 1 and the hollow needle tube 3 are installed on the connector 2 , and the needle 1 and the hollow needle tube 3 are connected through the connector 2 . The needle 1 , the hollow needle tube 3 and the connector 2 form a hollow blood channel, and the others are the same as the first embodiment.

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Abstract

The invention provides a venous puncture needle with an impedance detection function, relates to the venous puncture needle, and belongs to the field of medical equipment. The purpose of the inventionis to design the venous puncture needle with the puncture detection function to solve the problem that a venous puncture robot cannot judge whether the puncture needle enters blood vessel during venous puncture. The venous puncture needle includes a connector, and further includes a needle, a hollow needle tube, an electrode one and an electrode two; and the needle and the hollow needle tube areinstalled on the connector, the needle is connected to the electrode two, and the hollow needle tube is connected to the electrode one.

Description

technical field [0001] The invention relates to a vein puncture needle, in particular to a vein puncture needle with an impedance detection function, belonging to the field of medical devices. Background technique [0002] Venipuncture is the process of injecting medicine or obtaining blood samples by puncturing a vein. It is a common medical method, and currently it is mainly done manually by medical staff. Usually, medical personnel need to find suitable veins for venipuncture through naked eyes and palpation, and judge whether the puncture needle enters the blood vessel based on experience. The success rate of this method mainly depends on the working experience of medical personnel and the physical characteristics of the patient. Although medical staff will carry out specialized training and a lot of attempts, due to the different physical characteristics of different patients, such as patients with darker skin, higher body fat, deeper veins, covered injuries, tattoos an...

Claims

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Application Information

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IPC IPC(8): A61M5/158A61B5/15G01R27/22
CPCA61M5/158A61B5/15003A61B5/150053G01R27/22A61M2005/1585A61M2005/1588A61M2205/3317
Inventor 郭闯强何天宝任浩姜力刘宏
Owner HARBIN INST OF TECH
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