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Electromagnetic force driven automatic injection device

A technology of automatic injection and electromagnetic force, which is applied in the medical field, can solve the problems of complex drive mechanism, poor safety, and low precision, and achieve the effect of simple device structure, good device precision, and stable driving process

Active Publication Date: 2021-01-22
XI'AN POLYTECHNIC UNIVERSITY
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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 provide an automatic injection device driven by electromagnetic force to solve the problems of low precision, poor safety, complex driving mechanism and instability in the injection process of the injection device.

Method used

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Embodiment Construction

[0017] A complete description will be given below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0018] In describing the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "upper", "lower", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or el...

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Abstract

The invention discloses an electromagnetic force driven automatic injection device. The device is driven by ampere force F generated by a coil electrified wire in a magnetic field. The device comprises a needle head, a needle tube, a catheter, a shell end cover, a shell, a shell bottom cover, wires, a push rod, a push rod fixing seat, a coil rack, a permanent magnet pair A, a permanent magnet pairB, a magnet yoke and a plunger. The wires at the upper end and the lower end of a coil are arranged in the magnetic field of the two permanent magnet pairs, two equal forces in the same direction aregenerated at the upper end and the lower end to drive the coil to move, and the current and the driving force are in a linear relation. The precision and sensitivity of the automatic injection devicecan be improved, and the device is stable in driving, free of noise, simple in structure, small in size and suitable for being used in various occasions.

Description

technical field [0001] The invention relates to the medical field, in particular to an automatic injection device driven by electromagnetic force. Background technique [0002] Injection device is a kind of common medical appliance, often uses syringe in the process of injecting medicine to patient, needs to drive push rod to realize the injection of medicine during use. At present, the use of syringes is mostly driven manually or mechanically. In the process of manual driving, the labor intensity of the operator is high, the work efficiency is low, the injection process is unstable, and in special occasions, manual labor cannot participate in the injection work; mechanical drive can improve the efficiency of injection work. However, the mechanical structure is complicated, the injection process is not flexible enough, and the practicability is low. For this reason, it is very necessary to design an automatic injection device driven by electromagnetic force to realize the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/31
CPCA61M5/20A61M5/31
Inventor 胥光申刘泽旭吴芮盛晓超库朋涛
Owner XI'AN POLYTECHNIC UNIVERSITY
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