Fluid infusion device for dosing patient

Abstract

The invention provides a fluid infusion device for dosing a patient. The fluid infusion device comprises an injection mechanism, a fluid output channel, a connecting portion and a hollow puncture component. The hollow puncture component and the injection mechanism are fixedly connected, and the hollow portion is communicated with a liquid storage cavity of the injection mechanism. The hollow puncture component is configured to penetrate through a supply cavity of the connecting component under push of the injection mechanism, stretch into a fluid output channel so that a piston inside the liquid storage cavity can drive fluid inside the liquid storage cavity to the fluid output channel, and return to the supply cavity under dragging of the injection mechanism so that the supply cavity and the liquid storage cavity can be communicated so as to guide fluid inside the supply cavity into the liquid storage cavity. According to the fluid injection device, the process of setting the infusion amount during each injection can be omitted, and process for setting the infusion amount is simplified.

Description

technical field [0001] The present invention relates to the field of fluid delivery, in particular to a fluid infusion device capable of realizing bolus 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, event...

AI Technical Summary

Problems solved by technology

The insulin pen has a structure similar to that of a pen, including three parts: the pen body, the pen holder and the pen cover. Before injecting insulin, you need to install the matching insulin refill into the pen holder, then rotate the adjustment button to control the injection volume through the movement of the screw, and then press The injection button is driven by the screw to complete the injection. That is to say, the existing insulin pen needs to manually adjust the movement of the screw to control the infusion volume, and the setting process is relatively complicated.

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