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Method and device for position detection and correction of needle of automatic injection instrument

An automatic injection and instrument technology, applied in the direction of automatic injectors, syringes, hypodermic injection equipment, etc., can solve problems such as difficult to penetrate into the human body, wrong needle point orientation, and unguaranteed needle orientation.

Active Publication Date: 2021-02-09
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The needle tubes of automatic injection instruments are usually reused because they do not touch human blood, and the needles need to be replaced after each injection. However, when the needles are replaced, the orientation of the needles cannot be guaranteed. pierced into the body

Method used

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  • Method and device for position detection and correction of needle of automatic injection instrument
  • Method and device for position detection and correction of needle of automatic injection instrument
  • Method and device for position detection and correction of needle of automatic injection instrument

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Embodiment Construction

[0034] specific implementation plan

[0035] In order to realize the above-mentioned technology, the device of the present invention includes a first high-precision camera 1 and a second high-precision camera 3, a servo rotation device 2, an automatic injection instrument needle 4 and a light-shielding panel 5, and simultaneously analyzes the images taken by the high-precision camera. Image information A computer equipped with an image detection algorithm, which controls a servo rotation device based on image processing information; a servo rotation device and an automatic injection instrument.

[0036] Firstly, establish a space Cartesian coordinate system for the entire detection device, such as figure 2 A space Cartesian coordinate system is established with the center axis of the needle tube of the injection needle installed on the servo rotating device as the Z-axis, and the cross section at the beginning of the needle tip slope of the needle as the horizontal plane.

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Abstract

The invention provides a method and device for detecting and correcting the position of the needle of an automatic injection instrument, which solves the problem of positioning the needle tip of the injection needle on the automatic injection instrument, and ensures that the automatic injection instrument can be minimized after each replacement of the needle. Fast and accurate infusion, puncture, sampling and other processes with excellent friction.

Description

technical field [0001] The invention uses the image processing technology to invent a method and device for detecting and correcting the position of the needle tip of an automatic injection device. Background technique [0002] At present, in our country, the clinical infusion, puncture, sampling and other processes using automatic injection equipment are all done manually by doctors or nurses, which is inefficient. There is an urgent need for automatic injection devices to replace manual work to improve efficiency and relieve the pressure on doctors and nurses. The needle tubes of automatic injection instruments are usually reused because they do not touch human blood, and the needles need to be replaced after each injection. However, when the needles are replaced, the orientation of the needles cannot be guaranteed. into the body. [0003] Specifically, the needle of the automatic injection instrument has an anti-biological form, and the needle tip includes the outer wal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/20A61M5/32A61M5/31A61M5/46
CPCA61M5/20A61M5/31A61M5/32A61M5/3287A61M5/46A61M2005/206A61M2205/33
Inventor 张辉邓广刘理钟杭谭今文宋雅男
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY