US5121745A — Self-inflatable rescue mask

Claim 1

Independent Claim 169 words

A compactly packaged deflated self-inflatable rescue mask which self inflates when removed from the package, comprising a flexible form-retaining plastic dome shaped foldable portion having around its peripheral edge an inflatable bladder composed of plastic material which has sufficient resilience to cause said bladder to assume a shape which is consistent with its fully inflated shape, thereby causing a pressure gradient down which ambient air flows into the bladder until a pressure equilibrium is established, and the bladder is thereby fully inflated, said bladder is provided with a built-in, sealed air-valve, wherein said seal is removed from said air valve to automatically inflate said bladder, which allows the ambient air to flow into the inflatable bladder and seals the air in the inflated mask which retains its shape firmly, said bladder being shaped to fit around the nose and mouth, and a blow-in tube is disposed in an opening at the apex of the dome, provided with a mouthpiece for delivery of the rescuer's expired air to the patient.

Claim 2

Dependent Claim 169 words

A compactly packaged deflated self-inflatable rescue mask which self inflates when removed from the package, comprising a flexible form-retaining plastic dome shaped foldable portion having around its peripheral edge an inflatable bladder composed of plastic material which has sufficient resilience to cause said bladder to assume a shape which is consistent with its fully inflated shape, thereby causing a pressure gradient down which ambient air flows into the bladder until a pressure equilibrium is established, and the bladder is thereby fully inflated, said bladder is provided with a built-in, sealed air-valve, wherein said seal is removed from said air valve to automatically inflate said bladder, which allows the ambient air to flow into the inflatable bladder and seals the air in the inflated mask which retains its shape firmly, said bladder being shaped to fit around the nose and mouth, and a blow-in tube is disposed in an opening at the apex of the dome, provided with a mouthpiece for delivery of the rescuer's expired air to the patient.

Claim 3

Dependent Claim 39 words

The mask according to claim 1, packaged in a carrying case comprising two similar parts to form a container which is shaped to receive said mask in a deflated, flattened and folded state, and sealed with a closure means.

Claim 4

Dependent Claim 56 words

The mask according to claim 1, wherein removal of the seal from the air valve which causes the positive pressure of the ambient air to flow into the bladder which automatically inflates the bladder, and the internal mask pressure seals the air in the mask which forms the self-inflated mask ready for use on the patient.

Claim 5

Dependent Claim 46 words

The mask according to claim 3, wherein the inflation of the bladder and the unfolding of the dome-shaped position provides a mask which encloses the mouth and nose and seals against the patient's face, forming a plenum chamber filled with air blown therein by the rescuer.

Claim 6

Dependent Claim 39 words

The mask according to claim 4, wherein the space within the enclosed plenum chamber provides a sufficient distance between the rescuer's mouthpiece and the patient's mouth and nose, to protect the rescuer from contact with the patient's exhaled fluids.

Claim 7

Dependent Claim 53 words

The mask according to claim 2, wherein removal of the closure means from the carrying case and the seal from the air valve opens the air valve in the folded flattened mask, which self-inflates into a mask shaped to enclose the mouth and nose which firmly seals on the face of the patient.

Claim 8

Dependent Claim 22 words

The mask according to claim 2, wherein a single closure means is used for both the carrying case and the air-valve simultaneously.

Claim 9

Dependent Claim 16 words

The mask according to claim 7, wherein the single closure means is an adhesive peel-off seal.

Claim 10

Dependent Claim 15 words

The mask according to claim 1, wherein a one-way valve is inserted into the mouthpiece.

Claim 11

Dependent Claim 51 words

The mask according to claim 1, wherein the air valve connected to the bladder is provided with air passages and an opening for the flow of air into the bladder which automatically inflates, and the internal mask pressure which is greater than atmospheric pressure seals the air in the mask automatically.

Claim 12

Dependent Claim 23 words

The mask according to claim 3, wherein the self-inflated mask enables the rescuer to instantly deliver mouth to mask resuscitation to a victim.

Claim 13

Dependent Claim 81 words

The mask according to claim 2, wherein the rescuer simply removes the seal from the carrying case which may simultaneously or separately open the air valve in the folded flattened mask, and remove the mask from the carrying case which self-inflates into a mask shaped to enclose the mouth and nose, and firmly seals on the face of the victim, and the rescuer immediately blows air into the mouthpiece of the mask to deliver air to the victim's mouth and nose.

Claim 14

Dependent Claim 175 words

A disposable self-inflatable foldable pocket rescue mask, for ventilation CPR, made of a flexible form-retaining plastic material which has sufficient resilience to seal effectively against the face of the patient, comprising a form-retaining dome-shaped portion, having around its peripheral edge an inflatable bladder made of a flexible elastic material which has sufficient resilience which causes said bladder to assume a shape which is consistent with that of its fully inflated shape, and provided with a built-in air valve provided with a seal, an air-inlet opening at the apex of the dome through which a blow-in tube projects, provided with a round or elliptical mouthpiece for delivery of the rescuer's expired air to the patient, removal of the seal from the air valve opens said air valve, and the outside pressure of the ambient air being greater than the pressure within the cavity of the bladder causes the ambient air to flow into the bladder which automatically inflates the mask, and the internal mask pressure seals the air in the mask to form the self-inflated mask.

Claim 15

Dependent Claim 175 words

A disposable self-inflatable foldable pocket rescue mask, for ventilation CPR, made of a flexible form-retaining plastic material which has sufficient resilience to seal effectively against the face of the patient, comprising a form-retaining dome-shaped portion, having around its peripheral edge an inflatable bladder made of a flexible elastic material which has sufficient resilience which causes said bladder to assume a shape which is consistent with that of its fully inflated shape, and provided with a built-in air valve provided with a seal, an air-inlet opening at the apex of the dome through which a blow-in tube projects, provided with a round or elliptical mouthpiece for delivery of the rescuer's expired air to the patient, removal of the seal from the air valve opens said air valve, and the outside pressure of the ambient air being greater than the pressure within the cavity of the bladder causes the ambient air to flow into the bladder which automatically inflates the mask, and the internal mask pressure seals the air in the mask to form the self-inflated mask.

Claim 16

Dependent Claim 38 words

The mask according to claim 13, wherein the inflated bladder encloses the mouth and nose, and seals against the patient's face, and the dome shaped portion forms a plenum chamber filled with air blown therein by the rescuer.

Claim 17

Dependent Claim 48 words

The mask according to claim 13, wherein said air valve is a one-way air valve which automatically allows the ambient air to flow into the bladder due to the pressure differential until the internal pressure of the bladder plus the sponge within the valve closes the valve automatically.

Claim 18

Dependent Claim 42 words

The mask according to claim 13, wherein the form-retaining inflatable bladder is provided with a built-in air valve which allows the ambient air to flow into the inflatable bladder and self-seals the air in the self-inflated mask which retains its shape firmly.

Claim 19

Dependent Claim 138 words

A self-inflatable rescue mask made of a flexible form-retaining plastic material which has sufficient plastic material which has sufficient resilience to effectively seal against the patient's face, comprising a form-retaining dome-shaped portion, having around its peripheral edge, an inflatable bladder composed of resilient material which causes said bladder to assume a shape which is consistent with that of its fully inflated shape thereby causing a pressure gradient down which ambient air flows into the bladder until a pressure equilibrium is established and the bladder is thereby fully inflated, said bladder is provided with a built-in, one-way, air valve, which seals the air in the inflated bladder, and an air inlet at the apex of said dome is provided with a blow-in tube provided with a round or elliptical mouthpiece for delivery of rescuer's expired air to the patient.

Claim 20

Dependent Claim 138 words

A self-inflatable rescue mask made of a flexible form-retaining plastic material which has sufficient plastic material which has sufficient resilience to effectively seal against the patient's face, comprising a form-retaining dome-shaped portion, having around its peripheral edge, an inflatable bladder composed of resilient material which causes said bladder to assume a shape which is consistent with that of its fully inflated shape thereby causing a pressure gradient down which ambient air flows into the bladder until a pressure equilibrium is established and the bladder is thereby fully inflated, said bladder is provided with a built-in, one-way, air valve, which seals the air in the inflated bladder, and an air inlet at the apex of said dome is provided with a blow-in tube provided with a round or elliptical mouthpiece for delivery of rescuer's expired air to the patient.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-06-16	1995-12-16	1996-06-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-06-16	1999-12-16	2000-06-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-06-16	2003-12-16	2004-06-16	$7700.00	Window Closed / Lapsed

Self-inflatable rescue mask

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