A lifesaving device and a lifesaving control method are provided. Wherein, the lifesaving device includes: at least one first detection module (200) configured for detecting human body biological characteristic information, a lifesaving device body (100) capable of being worn on a body of a user, and at least one first gasbag module (300) arranged on the lifesaving device body (100); after the first gasbag module (300) is activated, a lifesaving gasbag (1) can be popped up; the first detection module (200) is in signal connection with the first gasbag module (300) and is configured for activating the first gasbag module (300) when the biological characteristic information detected meets a first preset condition.

An indicator to be snapped onto an inflator to indicate the ready operating condition of the inflator and, upon firing of the inflator by jerking the jerk handle to pivot the firing lever, the firing lever pops off the indicator from the inflator, thereby indicating the fired inoperable operating condition.

An indicator to be snapped onto an inflator to indicate the ready operating condition of the inflator and, upon firing of the inflator by jerking the jerk handle to pivot the firing lever, the firing lever pops off the indicator from the inflator, thereby indicating the fired inoperable operating condition.

Flexible lifesaving devices, such as life vests, pilot suits, lifeboats, lifebuoys, providing flotation to their users. An internal inflation space, integral to the device, has a volume sufficient when inflated, to provide flotation to a person or persons having up to a predetermined weight, using the device. Pressurized flotation gas, having a volume in its gaseous phase sufficient to inflate the internal space, is contained in a flexible pressurized gas container, such as a length of tubing or a pouch in a wall of the device, and enables the device to be both flexible and foldable. A valve connects the flexible container with the internal inflatable space of the device, such that when the valve is opened, the volume of pressurized flotation gas flows into the internal space. The flexible container is a regulatory required part of the device, which is thus flexible and foldable.

Flexible lifesaving devices, such as life vests, pilot suits, lifeboats, lifebuoys, providing flotation to their users. An internal inflation space, integral to the device, has a volume sufficient when inflated, to provide flotation to a person or persons having up to a predetermined weight, using the device. Pressurized flotation gas, having a volume in its gaseous phase sufficient to inflate the internal space, is contained in a flexible pressurized gas container, such as a length of tubing or a pouch in a wall of the device, and enables the device to be both flexible and foldable. A valve connects the flexible container with the internal inflatable space of the device, such that when the valve is opened, the volume of pressurized flotation gas flows into the internal space. The flexible container is a regulatory required part of the device, which is thus flexible and foldable.

A device for providing buoyancy comprising; a bladder capable of being inflated; a vessel containing fluid for inflating the bladder; and one or more valves for controlling the passage of fluid between the bladder and the vessel; wherein one or more of the valves are capable of being opened to permit the passage of fluid from the vessel to the bladder in response to at least one of exposure of the device to a pre-determined pressure level and detection of blood oxygen concentration below a pre-determine threshold in an individual using the device.

A device for providing buoyancy comprising; a bladder capable of being inflated; a vessel containing fluid for inflating the bladder; and one or more valves for controlling the passage of fluid between the bladder and the vessel; wherein one or more of the valves are capable of being opened to permit the passage of fluid from the vessel to the bladder in response to at least one of exposure of the device to a pre-determined pressure level and detection of blood oxygen concentration below a pre-determine threshold in an individual using the device.

An emergency alert assembly for alerting people to a drowning or other emergency near an individual wearing the apparatus includes a belt and an alert device attached to the belt. The alert device includes a balloon and a gas tank which selectively fills the balloon with gas that is less dense than air. When filled with the gas, the balloon moves out of the housing and serves to indicate a location of an emergency such as a drowning.

An emergency alert assembly for alerting people to a drowning or other emergency near an individual wearing the apparatus includes a belt and an alert device attached to the belt. The alert device includes a balloon and a gas tank which selectively fills the balloon with gas that is less dense than air. When filled with the gas, the balloon moves out of the housing and serves to indicate a location of an emergency such as a drowning.

A personal flotation device is provided that includes a housing, a canister disposed within the housing and storing a compressed gas, an inflatable member coupled to the housing, a channel within the housing, and a compressible member positioned within the channel. The channel extends from an exit point of the canister to the inflatable member such that the canister can be in fluid communication with the inflatable member. The compressible member is configured such that (i) when the personal flotation device is located less than a predetermined depth below a surface of water, the compressible member prevents the compressed gas from the canister from reaching the inflatable member, and (ii) when the personal flotation device is located greater than or equal to the predetermined depth below the surface of water, the compressible member compresses and thereby allows the compressed gas from the canister to inflate the inflatable member.