An Adaptive Intermittent Inflatable Pressurization System Based on Interface Pressure

Abstract

The invention provides an adaptive intermittent inflation and pressurization system based on interface pressure, which includes a system host, a ventilation pipeline, an air path conversion module and a limb sleeve. A flexible pressure sensor is pasted on the inner wall of the limb sleeve for real-time monitoring of the interface pressure between the inner wall of the limb sleeve and the limb. The main control system in the host includes a set of database system with deep learning function, which can automatically adjust the pressurization time and deflation interval time according to the input body feature information, so that the adaptive pressurization system can be used for different patients. In each cycle of treatment, the blood is emptied, and then fully recharged after evacuation, which can well promote circulation and achieve the best therapeutic effect. In addition, the independent zipper and belt structure adopted by the limb sleeve can adapt to patients with different limb shapes and different lower limb parts of the patient, and at the same time avoid affecting the blood circulation of the arteries in front of the calf and causing discomfort to the patient.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an adaptive intermittent inflation and pressurization system based on interface pressure. Background technique [0002] Patients who have undergone major lower extremity orthopaedic surgery due to long-term bed rest and immobility, slow blood circulation in the lower extremities, easily form blood stasis, and then cause deep vein thrombosis. . At present, the main methods of preventing DVT in the lower extremities are: basic prevention, drug prevention, mechanical prevention, etc. Among them, basic prevention depends on the patient's self-rehabilitation training; drug prevention refers to patients taking anticoagulant drugs after surgery to weaken the influence of coagulation factors; the basic principle of mechanical prevention is to use mechanical principles to accelerate venous blood flow in the lower extremities, reduce blood retention, and reduce Incidence of postoperati...

AI Technical Summary

Problems solved by technology

However, the effect of intermittent inflation and compression devices on preventing thrombosis is not particularly stable, and the advantages of intermittent inflation and compression devices cannot be fully utilized.

There are two reasons for the unstable effect: (1) The pressure applied by the air pump generally refers to the air pressure in the air bag, not the interface pressure between the patient's skin and the pressurized sleeve, so the air pressure parameters of the air pump are not reliable (2) The existing intermittent inflation pressure pump can only manually adjust the air pressure and interval time of the air bag, and cannot automatically adjust according to the patient's body characteristics. The adjustment of these parameters depends on the experience of the doctor, and the experience is inherently unstable. (3) Most of the existing limb sleeves are of one type, and the tightness is adjusted by Velcro to adapt to patients with different limb shapes

Take the calf sleeve as an example, if the lower limbs are thin and thin, the sleeve may cover the knee in the vertical direction, and the air bag inside the sleeve may wrap the front of the calf in the horizontal direction, or even overlap the air bag However, thrombus does not occur in the front of the calf, and long-term pressure on the front of the calf will also affect the blood circulation of the arteries

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