Naso-gastric oxygen mask
First Claim
1. A face mask for the administration of a gas such as oxygen comprisinga mask body of such size and shape adapted to cover at least the nose of a patient and having a peripheral edge;
- means for holding the mask against the face of a patient;
means for directing a flow of a gas to the interior of the mask;
means about the peripheral edge of the body for substantially sealing at least a portion of the body of the mask against the skin of the patient; and
means for admitting a naso-gastric tube into the interior of the mask body for insertion into the nostril of the patient comprisinga fenestration in the body extending through the peripheral edge and sealing means and located in a convenient position for allowing the passage of the tube through the fenestration and into the nostril of the patient, andmeans for substantially closing the fenestration to prevent the loss therethrough of gas directed into the mask body by the directing means.
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Accused Products
Abstract
A mask for delivery of gas, such as oxygen, to a patient and useable in a naso-gastric intubation procedure without disruption of the seal between the mask and the face of the patient. The body of the mask includes a fenestration or opening through which the naso-gastric tube may be inserted. The fenestration is preferably shaped to support the tube in manner which is comfortable for the patient and which eliminates or minimizes the amount of gas lost to the atmosphere outside the mask. In at least some embodiments, the fenestration is closed when a tube is not inserted therethrough so that the mask may be used normally without loss of the gas through the fenestration.
333 Citations
24 Claims
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1. A face mask for the administration of a gas such as oxygen comprising
a mask body of such size and shape adapted to cover at least the nose of a patient and having a peripheral edge; -
means for holding the mask against the face of a patient; means for directing a flow of a gas to the interior of the mask; means about the peripheral edge of the body for substantially sealing at least a portion of the body of the mask against the skin of the patient; and means for admitting a naso-gastric tube into the interior of the mask body for insertion into the nostril of the patient comprising a fenestration in the body extending through the peripheral edge and sealing means and located in a convenient position for allowing the passage of the tube through the fenestration and into the nostril of the patient, and means for substantially closing the fenestration to prevent the loss therethrough of gas directed into the mask body by the directing means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In an oxygen mask including a mask body adapted to cover at least the nose of a wearer and having a peripheral edge and a sealing means extending about the peripheral edge of the body for substantially sealing the mask to the face of a wearer,
a fenestration formed in the body and extending through the peripheral edge and sealing means, and means in the fenestration for accepting and seating a naso-gastric tube therein.
Specification