The invention is set in the field of sea rescue (a miniature compact device that ensures rescue to a swimmer, as a beginner and as experienced swimmer, as well is case he/she loses buoyancy) and, in particular, to an individual wearable buoyant belongings that may be used on beaches, in emergency situations, and on vessels as an individual lifesaver for self-rescue in water, affordable and easy to use for everyone.

There is known a device for sea rescue contains an inflatable element comprises a belt with a buckle and a vessel with compressed gas connected to an end of the inflatable element and containing a wall that separates the volumes of the vessel and the inflatable element and the design of the wall still includes a destructible part (Russian patent No. 2094299, class B63C 9/15, published on 27.10.1997).

Disadvantages of this lifesaver are only to be worn on the waist of a human as result of which its usage is less comfortable, large dimensions and weight as compared to the declared technical design, and large amounts of materials are required for producing the device.

The object of the invention was to create a more comfortable individual lifesaver that would be compact, would not hinder the swimmer's motions, would not be easily noticeable for public or, in some cases, could be used as a decoration worn on the wrist (as a bracelet or wrist watch) or forearm as a designer band.

The goal of the proposed invention is to make swimming or bathing in an open air water reservoir more comfortable owing to the usage of the rescue wristband worn on the body that may be fixed both on the swimmer's wrist or forearm using different fasteners chosen depending on the swimmer's preferences or be fixed in a special way on the swimmer's slips ensuring, if required, rapid activation of the inflatable buoyance chamber to maintain the upper part of the swimmer's body above the water surface. The specified goal is accomplished through the rescue wristband containing a length- adjustable fastener band with a buckle (or touch-fastener or a rubber band whose length may be adjusted with a buckle or is designed as a bundle without a buckle), an inflatable elastic buoyance chamber tightly rolled and placed into a pocket running along the wristband perimeter, a system for filling the chamber with gas that is designed, for example, as a vessel containing compressed air, and a device for activating the filling-in system that contains a lanyard. If the chamber is filled in with gas, it expands from the pocket and form an almost circular chamber filled-in with gas. The size of the miniature wristband may be adjusted to the swimmer's arm.

The inflatable buoyance chamber may be designed as consisting of more than one section. In this case, since after being inflated the wristband has the shape of several mutually connected spherical or oblong bodies (the number of which is the same as the number of the sections), the device may be used in a more comfortable way.

The technical result of the universal compact rescue wristband that may be used as an individual lifesaver is it may be produced in cost-efficient way, used with comfort owing to easy activation to the working state and its length is easily adjustable to the size of the swimmer's arm due to using an adjustable fixture or being designed as an elastic bundle.

The rescue wristband may be designed in 5 versions differing by the fastener employed.

Presence of the new features differing from the prototype indicates that the proposed technical solution met the 'novelty' requirements.

List of figures on the drawings:

Fig. 1 shows the general view of the life saving wristband when not it's in use.

Fig. 2 shows a view of the rescue wristband with a length-adjustable touch fastener (variant 1 ) Fig. 3 shows a view of the life saving wristband with a press-button fastener (variant 2)

Fig. 4 shows a view of the life saving wristband with an adjustable micrometric fastener (variant 3)

Fig. 5 shows a view of the life saving wristband with a buckle-type fastener (variant 4)

Fig. 6 shows a view of the life saving wristband designed as a bundle with a clip-type fastener (variant 5)

The life saving wristband (1) is designed as a hollow gas-filled inflatable elastic buoyance chamber (2) tightly rolled and placed into a pocket running along the wristband perimeter. The buoyance chamber is made of an air-tight material and has the shape of an open circle. The life saving wristband has a two-part fastener (3) that may be designed in different versions (as a length-adjustable pressure fastener, an adjustable micrometric fastener, a length-adjustable buckle-type fastener, a length- adjustable touch fastener, or as an elastic bundle without a fastener).

The system that fills the chamber with gas (4) may be designed as, for example, a vessel containing compressed air (and the vessel itself may be designed in different shapes that allow the device to have small dimensions, be attractive, and look like a decoration - as a narrow and not thick plate or as a wrist watch casing) and the device that activates the filling-in system (5) has a lanyard that, to prevent hanging loose or being incidentally pulled, will be covered with the thinnest rubber foil (6), which can be easily removed even by a child, expands from the pocket when the chamber is filled with gas and takes the form of a C-shaped buoyance chamber on the ends of which a length-adjustable fastener is fixed. The inflated chamber is additionally fixed to the arm and is pressed around it.

On the ends of the wristband made of a waterproof material a length-adjustable band with a fastener or a length-adjustable fastener is fixed that is used to fix the wristband on the man's wrist or forearm. Therefore, when swimming in a water reservoir, the rescue wristband looks like a regular bracelet; it allows the user to swim not putting his/her life under hazard and always having handy a rescue buoy that will keep the swimmer on the surface, help him/her reach the shore, and is easily noticeable, owing to its bright color, to potential rescuers.

The wristband may be designed as an extendable bundle (version 5) without a fastener and have instead a clip-type fixing device (7) one end of which is fixed to the wristband and the free end is fixed to swimming slips. In case of danger, the swimmer can rapidly unfasten the wristband from the swimming slips and put it on his/her own or other swimmer's hand having passed the hand through the tightened bundle ring; if used permanently during swimming, such tightening would be uncomfortable; however, if used for a short time during the period of danger, this is a reliable way of fixing the wristband on the arm that only requires for fixing to pass the hand through the device..

The rescue wristband operates in the following way:

The user puts the safety wristband on the arm (on the wrist like wrist watch or on the forearm as a decorative band similar to how children put on swimming-aid sleeves; but the wristband is not inflated) and fixes the fastener having adjusted it to the arm size. If necessary, the user should activate the rescue wristband to the working state. To do so, using string 6, he/she must open gas vessel 4. The hollow buoyance chamber is filled then with gas and takes the form of a life ring (or sleeves like those used by children), owing to which the user can stay afloat for a long time (waiting to be rescued or swimming to the shore). When the rescue wristband becomes unnecessary, it can be unfixed and left in water.

Thus, the gas-filled buoyance chamber saves the swimmer from drowning in a critical situation and thus prevents water accidents. The design of the proposed rescue wristband may be attractive. Due to simple design and small dimensions, the cost of the device is not high.

The proposed device may be widely used as a lifesaver on riverine and marine vessels and as an individual lifesaver for swimmer and bathers.