Fluid infusion device for dosing patient

Abstract

The invention provides a fluid infusion device for dosing a patient. The fluid infusion device comprises a liquid storage cavity for storing a preset amount of infusion fluid, a reversing mechanism configured to be operated so that infusion fluid can flow to a liquid storage cavity or flow out of the liquid storage cavity, and an injection mechanism, wherein at least part of the injection mechanism is located in the liquid storage cavity, the part of the injection mechanism is configured to be capable of moving in the liquid storage cavity so as to suck infusion fluid into the liquid storage cavity or drain out the infusion fluid from the liquid storage cavity. According to the device, the complex procedure for setting the infusion amount during each injection can be avoided, particularly, the process of setting a large dosage of infusion amount can be simplified, and convenience is brought to a user.

Description

technical field [0001] The present invention relates to the field of fluid delivery, in particular to a fluid infusion device capable of realizing large-dose injection for administering medicine to patients. Background technique [0002] Diabetes is a metabolic disease characterized by high blood sugar. Hyperglycemia is generally due to defective insulin secretion or impaired biological action, or a combination of both. Long-term hyperglycemia in diabetic patients can lead to chronic damage and dysfunction of multiple body organs (eg, eyes, kidneys, heart, blood vessels, nervous system, etc.). [0003] The clinical diagnosis of diabetes can be divided into type 1 diabetes and type 2 diabetes. Type 1 diabetes, also known as insulin-dependent diabetes, usually appears in childhood or adolescence, and is a disease that is inherited in families. Type 1 diabetes is an autoimmune disease in which the body's immune system attacks the beta cells in the body that produce insulin, ...

AI Technical Summary

Problems solved by technology

[0005] However, by arranging the screw rod in the insulin pen, the overall length of the device is increased, which is not conducive to the portable use of the device

At the same time, in order to precisely control the infusion volume, the existing insulin pen needs to manually adjust the movement of the screw to set the injection volume before each injection, which makes the setting process more complicated for each injection, especially for large-dose injections.

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