Portable hemostatic device and use method thereof

Abstract

The portable hemostasis device comprises a self-expansion net, the self-expansion net comprises a tubular net under the natural condition, an inner umbrella-shaped net and an outer umbrella-shaped net are arranged at the two ends of the tubular net respectively, and the outer diameter of the tubular net is smaller than the outer diameter of the inner umbrella-shaped net and the outer diameter of the outer umbrella-shaped net; at least two layers of self-expansion nets are arranged in the direction from outside to inside, expansion sponge used for absorbing blood is arranged between every two adjacent layers of self-expansion nets, and frozen hydrogel dressing used for reducing ballistic dead spaces is filled between grids of the self-expansion nets. A Celox coating which takes the frozen hydrogel dressing as a carrier and is used for medicine hemostasis is arranged on the surface of the self-expansion net positioned on the outermost layer. The invention further discloses a using method of the portable hemostasis device. According to the portable hemostasis device and the using method thereof, the bleeding position of the ballistic injury of the chest can be blocked, so that the hemostasis effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a portable hemostasis device and its usage method. Background technique [0002] Before modern warfare, thoracic trauma accounted for 8-15% of the total casualties in traditional warfare, but accounted for more than 50% of the total death toll. The main cause of death was intrathoracic heart, great vessel and lung injury. Chest gunshot wounds are mainly characterized by open wounds, which are more serious and progress rapidly. From 2001.10 to 2011.06, in the two wars of the United States in Afghanistan and Iraq Freedom, 4,596 people died of war trauma, including cardiothoracic war trauma. The proportions are 23.6% and 21.8% respectively. Among them, among the 976 who died before reaching the emergency facility but were medically possible to survive, 888 died of hemorrhage, 77 died of acute airway obstruction, and 11 died of tension pneumothorax. Therefore, timely improv...

AI Technical Summary

Problems solved by technology

[0005] Question 1: Hemostasis in the chest ballistic can be achieved by stuffing hemostatic sponge and other materials. However, in addition to the fatal rupture of the heart and great vessels in chest ballistic injuries, the main bleeding vessel is the intercostal artery, which is located under the ribs. Edge, when the body ejects blood in the chest, in addition to intercostal artery rupture and bleeding, it is often accompanied by rib rupture, so the trajectory of bleeding will become very complicated and soft, and it is difficult for ordinary hemostatic materials to compress the intercostal artery to achieve hemostasis Effect;

[0006] Question 2: Due to the existence of the lung, there are many small blood vessels inside, and the inside of the ballistic trajectory is complicated. It is difficult to stop most of the broken blood vessels in the lung tissue due to shock waves by ordinary compression alone;

[0007] Question 3: The existence of gunshot wounds can easily lead to pneumothorax and the occurrence of pneumothorax. How can we ensure that the problem of pneumothorax can be solved while the bleeding is stopped?

Images