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Transfusion pump

A technology for infusion pumps and infusion bags, which is applied in the field of infusion pumps, and can solve problems such as the decline in the resilience of the pipeline, the impact on the accuracy of the infusion, and the squeeze and rupture of the infusion tube, so as to avoid the effect of large accuracy errors

Inactive Publication Date: 2013-11-27
SINO MEDICAL DEVICE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the peristaltic pump repeatedly squeezes the infusion tube, causing great damage to the infusion tube, resulting in a decrease in the resilience of the tube and affecting the accuracy of the infusion
When working for a long time, there is even a risk of squeezing the infusion tube

Method used

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Embodiment Construction

[0040] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0041] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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PUM

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Abstract

A transfusion pump comprises a casing, a driving module, a piston, a pressure sensing module and a control module. The casing comprises a containing portion and a guide portion. The containing portion is used for containing a transfusion bag, and a liquid outlet is arranged in the lateral wall. The driving module is arranged at one end of the guide portion far away from the containing portion, and the driving end of the driving module can reciprocate along the guide portion. The piston is arranged in the casing and connected with the driving end. The pressure sensing module is arranged on the lateral wall of the piston far away from the driving module to obtain a pressure value between the transfusion bag and the piston. The control module, the driving module and the pressure sensing module are in communication connection. The control module receives the pressure value between the transfusion bag and the piston and measured by the pressure sensing module and controls the driving module according to the pressure value. When the pressure value is larger than preset pressure value, the control module controls the driving module to stop. When the pressure value is smaller than or equal to the preset pressure value, the control module controls the driving module to proceed at constant speed.

Description

technical field [0001] The invention relates to a medical infusion device, in particular to an infusion pump. Background technique [0002] The infusion pump is an instrument that can accurately control the number of infusion drops or the flow rate of the infusion, so as to ensure that the drug can enter the patient's body with a uniform speed, an accurate dose, and a safe effect. At the same time, the infusion pump can also improve the efficiency and flexibility of clinical drug administration operations and reduce the workload of nursing. The infusion pump achieves the purpose of controlling the infusion speed by acting on the infusion catheter. Most infusion pumps use finger-press peristaltic structure to achieve higher infusion pressure. The finger-pressing peristaltic structure is composed of a motor, a transmission mechanism, a peristaltic shaft, a peristaltic cam, an extrusion pump piece, and a pressing plate. When working, the micro-processing chip controls the ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/145A61M5/155A61M5/168
Inventor 吴海明张宏赖刚易燕成周杰王争王银军王敏
Owner SINO MEDICAL DEVICE TECH
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