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Electric control piston medicament injector and method

A drug syringe and piston-type technology, applied in the field of syringes, can solve the problems of large tissue damage, syringe needle blockage, unsatisfactory operation accuracy, etc., and achieve the effect of convenient injection volume and convenient control

Inactive Publication Date: 2015-03-11
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional micro-injection is carried out by pushing the piston of the micro-injection syringe with one hand, the injection speed cannot be kept constant, the tissue damage is large, and the interpretation of the experimental results is affected; the syringe needle is often blocked, which affects the experimental process, and the operation accuracy cannot meet the above requirements
Some reagents require voltage iontophoresis, which increases the operational complexity of traditional microinjection methods

Method used

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  • Electric control piston medicament injector and method

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Effect test

Embodiment Construction

[0013] Such as figure 1 As shown, at least the syringe body 1 is included. The syringe body 1 is divided into a piston chamber 14 and a second injection liquid chamber 15 by a sealing port 13. The second injection liquid chamber 15 has a syringe liquid outlet 4, and the piston chamber 14 passes through the The piston 18 divides the chamber into an upper chamber 16 and a lower chamber 17, and the upper chamber 16 and the lower chamber 17 have an air input / output port 11 and an air output / input port 12 respectively. The gas input / output port 11 can be the gas input port or the gas output port; similarly, the gas output / input port 12 can be the gas output port or the gas input port; the second injection chamber 15 has a syringe piston 2, the lower end of the syringe piston 2 forms a first injection liquid chamber 3, and the first injection liquid chamber 3 sucks the injection liquid through the syringe liquid outlet 4.

[0014] The upper cavity 16 has a pressure sensor interface...

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Abstract

The invention relates to an electric control piston medicament injector and a method. The invention is characterized in that the injector at least comprises an injector tube body, wherein the injector tube body is divided into a piston chamber and an injection chamber by a seal; and the injection chamber is provided with a liquid outlet for the injector. The piston chamber is divided into an upper chamber and a lower chamber by a piston; the upper and lower chambers are provided with an air inlet / outlet and an air outlet / inlet respectively; the air inlet / outlet can be either an air inlet or an air outlet; and similarly, the air outlet / inlet can be either an air outlet or an air inlet. The injection chamber is provided with an injector piston, below which another injection chamber is formed; and injection solution is injected into the injection chamber through the liquid outlet of the injector. The electric control piston medicament injector is characterized by little tissue injury, and high repeatability, and is convenient and fast to use.

Description

technical field [0001] The invention relates to an injector, in particular to an electronically controlled piston-type drug injector and a method thereof, which are used for controlling the liquid intake in a laboratory. Background technique [0002] Research in neuroscience is in the ascendant. Stereotaxic drug administration to animal brains is a frequently used experimental method in neuroscience research. Such as brain nuclei localized injection of beam tracers, active drugs, receptor agonists, receptor antagonists, etc. This micromanipulation requires precise injection volume (0.1 microliter), constant injection speed, good repeatability, and little tissue damage. Traditional microinjection is carried out by pushing the plunger of the microsyringe with one hand. The injection speed cannot be kept constant, and the tissue damage is large, which affects the interpretation of the experimental results. Moreover, the syringe needle is often blocked, which affects the exper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61D7/00
Inventor 王文朱超孙莉莉高昌俊每晓鹏陈磊董玉琳李辉张婷武胜昔李云庆
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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