Drowning-preventing life-saving device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 余孝永
- Publication Date
- 2018-05-04
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present application relates to a life preserver, in particular to a drowning life preserver. Background technique
[0002] With the continuous growth of the national economy and the significant improvement of material living standards, water sports have increasingly become the summer sports of choice for the general public. With the rising trend of swimming, drowning has also become a high incidence of swimming safety problems in summer. According to the report of the World Health Organization, 372,000 people drown and die every year in the world, among which children under 5 years of age have the highest drowning rate. Hypoxia is the leading cause of death by drowning. When the human body falls into the water and the body is submerged, the mouth and nasal cavity are filled with water, so that oxygen cannot enter. At the same time, the stimulation of cold water or water absorption will cause reflex pharyngospasm, which is prone to suffocation. ...