Injection pump

A syringe pump and shell technology, applied in the field of medical devices, can solve problems such as difficult high-precision control, difficult miniaturization, and low reliability, and achieve the effects of simple structure, reduced quantity, and small volume

Active Publication Date: 2013-12-04
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the above-mentioned ordinary syringe pumps using stepping motors or DC motors have complex structures, are difficult to miniaturize, and are difficult to control with high precision. less reliable

Method used

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Embodiment Construction

[0017] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] The injection pump of the present invention includes a housing, a motor assembly installed in the housing, and a propulsion mechanism connected to the syringe, wherein the syringe pump further includes a motor assembly connected between the motor assembly and the propulsion mechanism A gear transmission device, the motor assembly includes a base and a piezoelectric motor installed on the base; when the piezoelectric motor is excited, it drives the gear transmission device, and the gear transmission device then drives the propulsion mechanism to operate linea...

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Abstract

The invention relates to an injection pump, comprising a casing, a motor assembly mounted inside the casing and an advancing mechanism connected with an injector, wherein the injection pump further comprises a gear transmission device connected between the motor assembly and the advancing mechanism, the motor assembly comprises a base and a piezoelectric motor mounted at the base; the piezoelectric motor drives the gear transmission device when being excited, and the gear transmission device then leads the advancing mechanism to rectilinear motion. The injection pump according to the embodiment of the invention has the advantages of simple structure, small volume, higher injection precision, etc.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a syringe pump. Background technique [0002] Ordinary injection pumps generally include a stepping motor or a DC motor, a reduction mechanism, a screw, a nut, a guide rod and a needle tube push seat. The rotation of the motor is decelerated by the reduction device and then transmitted to the screw. The nut is firmly connected, and the needle tube push seat is connected with the guide rod, so that the motion can be transmitted to the needle tube push seat through the guide rod connected with the nut to push the needle tube. [0003] However, the above-mentioned ordinary syringe pumps using stepping motors or DC motors have complex structures, are difficult to miniaturize, and are difficult to control with high precision. Less reliable. Contents of the invention [0004] In order to solve the above technical problems, the present invention provides an injection pump, which i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/315F04B17/00
Inventor 石斌关亮塔静宁徐雪前
Owner JOHNSON ELECTRIC SHENZHEN
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