Surgery – Respiratory method or device – Respiratory gas supply means enters nasal passage
Patent
1994-01-10
1995-10-31
Burr, Edgar S.
Surgery
Respiratory method or device
Respiratory gas supply means enters nasal passage
12820629, 12820525, A61M 1601
Patent
active
054620503
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to anesthesia masks for infants. More particularly, the present invention relates to anesthesia masks for infants which includes a central body section with a through opening for connection of an anesthesia tube to the mask. More particularly, the present invention relates to such anesthesia masks which include a bowl-shaped elastic wall projecting from the body section which is shaped to be sealed around the facial region of the child, including both the nose and mouth of the infant.
BACKGROUND OF THE INVENTION
In order to anesthetize infants, particularly babies, an anesthesia mask for covering the infant's face (i.e., nose and mouth) is often used. Thus, during administration of the anesthetic, such masks are continuously pressed against the child's face by a nurse in order to maintain such sealed contact. Such a mask is therefore often seen by the child as a threat due to perceived difficulty in breathing through the nose while utilizing the mask. This disturbs the child so that anesthetizing becomes much more difficult.
An anesthesia administering device is known from EP-A-0 085 639 which includes a test-shaped suction piece with which the child can suck and thus draw a nozzle opening for the anesthesia gas towards himself. In this case, the nozzle is formed on the outside of the teat, and positioned in front of the infant's nose. The gas can thus be partially inhaled by the child, although the majority of the gas will flow out to the surrounding air. This known device is intended to achieve a first phase of anesthetizing, and then thereafter a normal anesthesia mask can be connected and placed over the infant's face for subsequent anesthetizing (see page 4, lines 26-32; page 5, lines 1 and 2 of the EP publication).
An object of the present invention is to provide an anesthesia mask for infants which the child will happily accept so as to achieve a gradual sealing contact of the outer peripheral edge of the bowl-shaped wall of the mask against the face of the child around the nose and mouth so as to prevent leakage of anesthesia gas around the mask and to thereby obtain complete anesthesia with one single pass.
SUMMARY OF THE INVENTION
In accordance with the present invention, these and other objects have now been accomplished by the invention of an anesthesia mask for use by infants which includes a bowl-shaped elastic body portion adapted for sealingly surrounding the face of the infant around the nose and mouth and including a peripheral edge portion, with the body portion including a central opening for connection to an anesthesia tube, the body portion further including suction means unitary therewith and extending within the body portion towards the infant's face whereby insertion of the suction means into the infant's mouth facilitates sealing of the peripheral edge against the infant's face and application of the anesthetic by the infant sucking on the suction means. In a preferred embodiment, the peripheral edge portion includes an inwardly directed bead, and the suction means is teat-shaped, and preferably is completely sealed. In accordance with another embodiment of this invention, the central opening includes nipple means for connection to the anesthesia tube.
Thus, in order to achieve the objects of this invention, the anesthesia mask hereof is characterized by the fact that a test-shaped suction piece is formed unitarily with a section of the wall beneath the through opening which is to be connected to the anesthesia tube. Suction piece is thus intended to be inserted into the child's mouth in order to facilitate a gradual sealing contact of the wall's outer peripheral edge against the infant's face by means of the child sucking on the suction piece.
BRIEF DESCRIPTION OF THE DRAWINGS
A more complete understanding of the subject matter of the anesthesia mask of the present invention may be had with reference to the following detailed description, which refers to the attached drawings in which FIG. 1 is a side, partially secti
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Burr Edgar S.
Deane, Jr. William J.
Engstrom Medical Aktiebolag
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