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A Precise Drug Delivery Infusion Device Based on Electrowetting on Medium

An infusion device and electrowetting technology are applied in the direction of pressure infusion and instruments introduced into the body, which can solve the problems of insufficient control and infusion control errors, and achieve intelligent liquid medicine delivery, convenient wide adjustment and The effect of real-time control

Active Publication Date: 2022-03-15
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the disadvantage is that the control is not accurate enough, and it is easy to cause errors in the control of infusion due to the error of the mechanical structure.

Method used

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  • A Precise Drug Delivery Infusion Device Based on Electrowetting on Medium
  • A Precise Drug Delivery Infusion Device Based on Electrowetting on Medium
  • A Precise Drug Delivery Infusion Device Based on Electrowetting on Medium

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] The digital microfluidic technology based on the electrowetting effect on the medium specifically refers to the microfluidic technology that changes the wettability of the liquid on the surface of the medium by applying a voltage on the medium, that is, changes the contact angle, so as to specifically control the movement of the droplet. streaming technology. It has many advantages such as simple driving method, strong driving force, strong controllability, high degree of automation, and high degree of integration. It is currently the mainstream technology in the field of digital microfluidics. application prospects.

[0020] combine Figure 1 to Figure 4 , the present invention provides a precise drug delivery and infusion device based on electrowetting on the medium, through the digital microfluidic technology based on the electrowetting on the med...

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Abstract

The invention discloses a precision drug delivery infusion device based on electrowetting on a medium. A horizontally placed precision drug delivery infusion based on electrowetting on a medium is added to the infusion hose between the needle of the infusion set and the liquid bottle. The device can automatically and precisely control the drug delivery rate of the infusion set by driving the electrode sequence connected with the controller in the device. The invention has the advantage that it can replace the flow rate control valve or the infusion pump in the infusion set, and can automatically and adjustably control the flow rate of the liquid droplet. The control of infusion speed and drug dosage is accurate to each droplet, which facilitates wide adjustment and real-time control of infusion rate, and realizes intelligent drug delivery.

Description

technical field [0001] The invention belongs to the technical field of medical equipment and microfluidics, and in particular relates to a precision drug delivery infusion device based on electrowetting on a medium. Background technique [0002] The infusion set refers to a common medical device that is mainly used for intravenous infusion after aseptic treatment and to establish a channel between the vein and the liquid medicine. It is composed of a device, a liquid bottle, a cork piercer, and an inlet pipe air filter connection. Flow regulators cannot accurately measure and control the infusion rate. [0003] The infusion pump is usually a mechanical control device, which controls the infusion speed by acting on the infusion catheter. There are mainly peristaltic control infusion pumps, constant volume control infusion pumps and syringe micro-injection infusion pumps, but they are all mechanically controlled by controlling the infusion hose or syringe to control the rate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/142
CPCA61M5/142A61M2005/14208
Inventor 王伟强牛嘉琦
Owner NANJING UNIV OF SCI & TECH
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