Hybrid hemostatic structure and hemostatic device based on helical spring

Abstract

The invention discloses a mixed hemostatic structure and a hemostatic device based on coil spring, wherein the hemostatic structure comprises an external application film of hemostatic materials and amixed self-adaptive structure. The mixed self-adaptive structure consists of an air bag, an air inflation device and a self-adaptive coil spring deployable structure. The self-adaptive coil spring deployable structure consists of coil springs and a support rod, wherein the coil springs are distributed in a layered manner, one for each layer, and the coil spring is fixed on the support rod. When in use, the mixed hemostatic structure is injected into the wound, the air inflation device is opened and the air bag is inflated to make the air bag expand so that the external application film of hemostatic materials is driven to contact with the wound surface, the coil spring releases the elastic potential energy to expand along the radial direction to provide support for the air bag. When the pressure meets the hemostatic condition of the wound compression hemostasis, the air inflation is stopped, so that the hemostasis function is achieved.

Description

technical field [0001] The invention relates to a novel penetrating wound hemostasis structure, in particular to an adaptive hybrid hemostasis structure and an injection-type hybrid hemostasis device. Background technique [0002] The existing hemostasis treatment of penetrating wounds on the battlefield mainly adopts compression hemostasis, burning hemostasis, grease and gauze filling hemostasis and other methods. These conventional hemostasis methods are far from meeting the first aid requirements for hemostasis of penetrating wounds due to the limitation of wartime conditions or treatment effects. There is an urgent need to develop a new hemostatic method and device to fill the gap. RevMedx, a medical technology company in Oregon, USA, has developed a syringe-like medical device called "XStat", which contains tiny cotton wool, which can change the way military doctors treat gunshot wounds and shrapnel wounds. When in use, military doctors inject dozens of pill-shaped mic...

AI Technical Summary

Problems solved by technology

However, this method of relying on blood-sucking expansion to stop bleeding is very dangerous for the wounded who are bleeding heavily on the battlefield, and the strength of the material becomes weak after expansion, making it difficult to provide continuous squeezing force on the wound surface, and its function needs to be further improved

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