Deploying a chemically-inflatable bag with an unfurling action

A method for deploying an obstruction within a formed cavity by applying an unfurling action to a chemically-inflatable bag, the method comprising:

• providing the chemically-inflatable bag in a collapsed condition, wherein the chemically-inflatable bag comprises an elongated sleeve that includes a first chamber that encloses a first reactant and a second chamber that encloses a second reactant;
• providing a crease in the elongated sleeve that, when rolled into a cylindrical coil and when at least one fastener is assembled to the cylindrical coil, operates as a releasable seal that resists unintentional mixing of the first reactant and the second reactant;
• applying an unfurling action to the chemically-inflatable bag, wherein the unfurling action comprises:
• (a) retaining the first chamber and leaving the second chamber unencumbered;
• and
• (b) creating a moment of inertia in the second chamber by moving the retained first chamber at a rate that causes the at least one fastener to disengage from the cylindrical coil and that causes the cylindrical coil to unwind, thereby compromising the releasable seal;
• displacing a portion of the first reactant from the first chamber into the second chamber via a passageway furnished by the compromised releasable seal;
• invoking a chemical reaction by introducing the displaced portion of the first reactant to the second reactant, wherein a by-product of the chemical reaction is a gas;
• and
• expanding the chemically-inflatable bag to an inflated condition with the gas being generated by the chemical reaction.

A method for expanding a chemically-inflatable bag from a collapsed condition to an inflated condition, the method comprising:

• providing the chemically-inflatable bag in the collapsed condition with an interior, wherein a crease is formed in the chemically-inflatable bag that creates a watertight, releasable seal dividing the interior into a first chamber that encloses a quantity of a fluid substance and a second chamber that encloses a quantity of a powdered substance, and wherein the releasable seal resists unintentional compromise upon rolling the crease into a cylindrical coil;
• manually grasping the first chamber and leaving the second chamber unencumbered;
• generating a moment of inertia in the second chamber by manually applying an unfurling action to the chemically-inflatable bag, wherein the moment of inertia causes the cylindrical coil to unwind, thereby compromising the releasable seal;
• utilizing a gravitational force to displace a majority of the quantity of the fluid substance from the first chamber into the second chamber via a passageway furnished by the compromised releasable seal and to introduce the displaced majority of the quantity of the fluid substance to the quantity of the powdered substance, wherein the introduction invokes a chemical reaction that produces a quantity of gas capable of expanding the chemically-inflatable bag to an inflated condition.