Self-adaptive intermittent inflating and pressurizing system based on interface pressure

Abstract

The invention provides a self-adaptive intermittent inflating and pressurizing system based on interface pressure. The self-adaptive intermittent inflating and pressurizing system comprises a system host, a ventilation pipeline, an air path conversion module and a limb sleeve. A flexible pressure sensor is attached to the inner wall face of the limb sleeve and used for monitoring the interface pressure between the inner wall face of the limb sleeve and the limb in real time. A main control system inside the host comprises a database system with a deep learning function, and the system can automatically adjust pressurization time and deflation interval time according to input posture characteristic information, so that blood of different patients is emptied in each circulation treatment by the self-adaptive pressurization system, the patients are fully recharged after being emptied, and circulation can be well promoted, so that the optimal treatment effect is achieved. 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 patients; and meanwhile the situation that blood circulation of artery blood vessels in front of the shanks is affected, and consequently the patients feel uncomfortable is avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an adaptive intermittent inflation pressurization system based on interface pressure. Background technique [0002] Patients who have undergone major lower limb orthopedic surgery are bedridden for a long time and do not move for a long time. The blood circulation in the lower limbs is slow, and blood stasis is easy to form, which in turn leads to deep vein thrombosis. If not diagnosed and treated in time, pulmonary embolism may occur concurrently, causing extremely serious consequences. . At present, the methods of preventing deep vein thrombosis of lower extremities mainly include: basic prevention, drug prevention, mechanical prevention and so on. Among them, the basic prevention depends on the patient's self-rehabilitation training; drug prevention refers to taking anticoagulant drugs after surgery to weaken the influence of coagulation factors; the basic principle of mechanic...

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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