CA1226504A - Inhalation mask - Google Patents
Inhalation maskInfo
- Publication number
- CA1226504A CA1226504A CA000451905A CA451905A CA1226504A CA 1226504 A CA1226504 A CA 1226504A CA 000451905 A CA000451905 A CA 000451905A CA 451905 A CA451905 A CA 451905A CA 1226504 A CA1226504 A CA 1226504A
- Authority
- CA
- Canada
- Prior art keywords
- mask
- flange
- body portion
- extending
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
INHALATION MASK
Abstract of the Disclosure An inhalation mask made of transparent resilient flexible plastic material comprising a central body portion including a concave inner surface and a convex exterior sur-face, and being adapted to be placed over the nose and mouth of a victim. The body portion has a generally triangular periphery and has a tubular extension integral therewith and extending outwardly from the convex exterior surface. The mask has an integral peripheral flange, including an apex portion adapted to engage the forehead, said portion of the flange extending along the sides of the body portion being adapted to engage the face and a base portion of the flange extending along the base of the body portion adapted to engage the chin. The flange has an integral sealing bead extending axially on the surface thereof for engaging the bridge of the nose at the apex of the flange, the sides of the face and the chin.
i.
Abstract of the Disclosure An inhalation mask made of transparent resilient flexible plastic material comprising a central body portion including a concave inner surface and a convex exterior sur-face, and being adapted to be placed over the nose and mouth of a victim. The body portion has a generally triangular periphery and has a tubular extension integral therewith and extending outwardly from the convex exterior surface. The mask has an integral peripheral flange, including an apex portion adapted to engage the forehead, said portion of the flange extending along the sides of the body portion being adapted to engage the face and a base portion of the flange extending along the base of the body portion adapted to engage the chin. The flange has an integral sealing bead extending axially on the surface thereof for engaging the bridge of the nose at the apex of the flange, the sides of the face and the chin.
i.
Description
~2~5~L
This invention relates to inhalation masks and particularly to inhalation masks that are used in emergency equipment for supplying oxygen to a victim either from an oxygen apparatus or supplying air to a person from a rescuer's lungs via the mouth or supplying air to a person from a bag resuscitator.
background and Summary of the Invention -In providing emergency supplemental oxygen to a victim, it has been common to utilize a mask which it placed over the nose and mouth of the victim and through which supplemental oxygen is provided by an oxygen apparatus.
More recently, it has also been common to utilize an inhale-lion mask in providing mouth-to-mask resuscitation instead of mouth-to-mouth resuscitation.
Among the objectives of the present invention are to provide an inhalation mask which is low in cost, readily stored, and can be utilized for either mouth-to-mask supply of air, or for supply of oxygen from a supplemental oxygen apparatus or for supply of air from a bag resuscitator with out changing the mask equipment thereby eliminating delay in instituting the necessary emergency treatment. The use of the mask reduces the risk of infection and permits the rescuer to function and provide an increased amount of needed oxygen US with less apprehension regarding infection or vomiting that might occur, permits the rescuer to keep both hanks free to maintain proper head tilt and firmly hold the mask in place ,.. .
~226~
creating the best airway possible, minimizes the risk of over inflation of victims lungs, reduces the risk of inflate in the stomach from the overflow of air with the potential of inducing vomiting that is common with positive pressure resuscitation equipment with air and, as a result, enables the rescuer to constantly monitor the person's vital signs and check the mouth and nose for vomiting without removing the task, is of a universal design for proper fit over a human face, utilizes the motivating force of the rescuer's 10 lungs with its sensitive responses to the victims pulmonary needs thereby eliminating the potential dangers of malfunction-in mechanical equipment, insures ventilation of the mask that might occur due to accidental obstruction of the normal ventila t ion opening.
: 15 In accordance with the invention, the inhalation mask is made of transparent resilient flexible plastic material and comprises a central body portion including a concave inner surface and a convex exterior surface adapted to he placed over the nose and mouth of a victim. The body portion has a generally triangular periphery and has a tubular extension integral therewith and extending outwardly from the convex exterior surface. The mask has an integral peripheral flange including an apex portion adapted to enc3a~e the forehead, side portion of the flange extending along the stales of said body ;~: 25 portion being adapted to nudge the face end a bate portion of the flange extending alc)ny the base of the body pt)rti~n adapted to engage thy chin The Lange has an integral seal-1 . I
in bead extending axially on the surface thereof for engage in the bridge of the nose at the apex of the flange, the sides of the face and the chin. The tube has a plurality of circumferential spaced radially extending openings there through. The thickness of the wall of the central body portion decreases gradually toward the flange in any radial direction away from the tube. The central body portion is provided with a opening in the portion of the wall thereof between the tube and the chin engaging portion and a diffuser member is positioned in said opening, the diffuser member having an inlet providing co~nunication to the exterior of the mask and spaced outlets within the mask, said outlets extending transversely toward the side flanges.
:
Description of the Drawings FIG. 1 is a perspective view of a mask embodying the invention.
FIG. lo is a perspective view showing the mask in use on a patient.
FIG. 2 is a front elevation Al view of the mask.
FIG. 3 is a side elevation Al view of the mask.
FIG. 4 is a top elevations view of the mask.
FIG. 5 is a bottom elevation Al view of the mask.
FIG. 6 is a sectional view taken along the lines 6-6 in FIG. 2/ parts being removed.
FIG. 7 is a sectional view taken along the lines 7-7 in JIG. 6.
so FIG. 8 is a sectional view taken along -the lines 8~8 in FIG. 2, parts being broken away.
FIG. 9 is a sectional view taken along the line 9-9 in FIG. 3.
Description Referring to FIG. l, the inhalation mask lo embody-in the invention is made of a transparent resilient and flexible plastic material grade and is preferably made of a material such as transparent polyvinyl chloride having a dormitory of 60 plus or minus two on the A scale. Such a plastic is made by Alpha Chemical and Plastics Company of Newark, New Jersey under the designation 2222C60, To Green.
As shown in FIGS. 1-9, the inhalation mask lo come lo proses a central body portion if which has a convex exterior surface 12 and a concave interior surface 13 (FIGS. 6-8) and is of generally triangular peripheral configuration. The mask lo includes an integral flange 14 that surrounds the triangular periphery of the body portion if and defines an upper apex 15 which is adapted to engage the forehead adjacent the bridge of the nose, side portions 1.6r 17 thaw extend along the face of the victim and a base portion 18 that enrages the chin of the victim (FIG. 2). As further shown in FIGS. 1-8, the central body portion if includes an integral tube lo extending axially outwardly from the convex surface 12.
The apex 15 of the flange is curved outwardly toward tube 9 as shown in FIGS. 3, and 6 and is adapter to enqa~e the recoiled The base 18 it also curved outw~rclly toward ` the tube 19 for greater conformity with the chin.
Jo 25 The flange 12 further includes an annular continuous thickened portion defining an integral read 20 at the junior of the periphery ox the central body portion end the Earl 12 .
Lyle that extends axially away from the tube 19 and toward the face of the victim and assists in providing an air-tight seal with the face of the victim. The radial width of the bead 20 is such that the flange 12 extends radially outwardly burled the head 20 and assists in creating the seal.
The thickness of the central body portion 11 decreases gradually toward the flange 12 as shown in FIGS. 6-8. The thickness is greater in transverse section (FIGS. 7, 8) than in vertical section (FIG. 6). In this manner, the mask is rigid enough at the center of portion 12 so that it can be firmly held on the face and yet flexible enough at the periphery to sealingly engage the face.
The tube 19 includes radial openings 21 which lung-lion to insure that the interior of the mask is ventilated -to ; 15 the exterior when the mask is pressed against the face and the end of tube 19 is inadvertently closed by the hand ox the rescuer. Tube 20 has an inner diameter and an outer diameter dimensioned to be adaptable to receive the connector of a bag resuscitator or supplemental oxygen apparatus as established by the T-29 ASTM Commuter on Safety Requirements of Resuscitators intended for use with Humans, namely, 15mm and 22mm.
The body portion includes an opening 22 (FIG. 8) for receiving a diffuser 23 that comprises an axially extend-in portion 24 having an opening aye and an enlarged portion 25 within the mask. The enlarged portion has transversely extending openings 26 that communicate with the opening aye of the tubular portion. nut 27 is threaded on the tubular portion. The diffuser member and nut are preferably made of a rigid plastic such as Delxin. The positioning of the openings 26 transversely directs the oxygen laterally against the wall of the central body portion 11 so that it does no-t flow directly from the opening aye to the mouth and nose of the victim, minimizes the possibility of foreign matter such as vomit from interfering with the passages. The adapter 23 is utilized in connection with auxiliary oxygen apparatus for supplying oxygen to the mask.
As shown in Foggily , the mask further includes spaced holes 27 in the flange portion along the sides of the flange 12 near the base portion 18. A base 29, preferably made of tubular natural latex, has its ends threaded through the open-ins 24 to fasten and adjustable connect the band 25 to the mask.
When used with a supplemental oxygen apparatus, a tube from the apparatus is connected to the axially extending portion 24 of the diffuser 23. The rescuer than places the mask o'er the face of the victim, and attaches the band if time permits so that oxygen will be supplied through the diffuser 23. The victim can exhale through the central open-in of tube 19~ In the event that when the rescuer presses the mask against the aye, inadvertently obstructs the eons of tube l3r the radial opines oh offer continuing ventila-lion to the atmosphere.
When the mask is utilized with a bag resusci~ator,the resuscitator is conrlected to tube I covering oE)eninqs Al i .
and the diffuser functions as a ventilator.
When used for mouth-to-mask resuscitation, the rescuer applies the mask to the face and attaches the head band 25 about the head of the victim. He then is able to blow through the tubular portion, covering opening 24 with his mouth, supplying air to the victim.
It can -thus be seen that the mask can be utilized for supply of air from a hag resuscitator or for mouth-to-mask supply of air without any changes in the mask. Moreover, the mask can be utilized for mouth-to-mask resuscitation even when -the oxygen apparatus is attached to the mask. The mask is simple in construction and -therefore low in cost, is flex-isle and can be readily stored. When used for mouth-to-mask resuscitation, the mask reduces the risk of infection and lo permits the rescuer to function and provide an increased amount of needed oxygen with less apprehension regarding infection or vomiting thaw might occur. The mask permits the rescuer to position the mask in the best possible position on the face, minimizes the risk of over-inflation of the victim's lungs and stomach and enables the rescuer to con Stanley monitor the mouth and nose. Further the mask provides proper ventilation at all times for exhalation by the victim .
This invention relates to inhalation masks and particularly to inhalation masks that are used in emergency equipment for supplying oxygen to a victim either from an oxygen apparatus or supplying air to a person from a rescuer's lungs via the mouth or supplying air to a person from a bag resuscitator.
background and Summary of the Invention -In providing emergency supplemental oxygen to a victim, it has been common to utilize a mask which it placed over the nose and mouth of the victim and through which supplemental oxygen is provided by an oxygen apparatus.
More recently, it has also been common to utilize an inhale-lion mask in providing mouth-to-mask resuscitation instead of mouth-to-mouth resuscitation.
Among the objectives of the present invention are to provide an inhalation mask which is low in cost, readily stored, and can be utilized for either mouth-to-mask supply of air, or for supply of oxygen from a supplemental oxygen apparatus or for supply of air from a bag resuscitator with out changing the mask equipment thereby eliminating delay in instituting the necessary emergency treatment. The use of the mask reduces the risk of infection and permits the rescuer to function and provide an increased amount of needed oxygen US with less apprehension regarding infection or vomiting that might occur, permits the rescuer to keep both hanks free to maintain proper head tilt and firmly hold the mask in place ,.. .
~226~
creating the best airway possible, minimizes the risk of over inflation of victims lungs, reduces the risk of inflate in the stomach from the overflow of air with the potential of inducing vomiting that is common with positive pressure resuscitation equipment with air and, as a result, enables the rescuer to constantly monitor the person's vital signs and check the mouth and nose for vomiting without removing the task, is of a universal design for proper fit over a human face, utilizes the motivating force of the rescuer's 10 lungs with its sensitive responses to the victims pulmonary needs thereby eliminating the potential dangers of malfunction-in mechanical equipment, insures ventilation of the mask that might occur due to accidental obstruction of the normal ventila t ion opening.
: 15 In accordance with the invention, the inhalation mask is made of transparent resilient flexible plastic material and comprises a central body portion including a concave inner surface and a convex exterior surface adapted to he placed over the nose and mouth of a victim. The body portion has a generally triangular periphery and has a tubular extension integral therewith and extending outwardly from the convex exterior surface. The mask has an integral peripheral flange including an apex portion adapted to enc3a~e the forehead, side portion of the flange extending along the stales of said body ;~: 25 portion being adapted to nudge the face end a bate portion of the flange extending alc)ny the base of the body pt)rti~n adapted to engage thy chin The Lange has an integral seal-1 . I
in bead extending axially on the surface thereof for engage in the bridge of the nose at the apex of the flange, the sides of the face and the chin. The tube has a plurality of circumferential spaced radially extending openings there through. The thickness of the wall of the central body portion decreases gradually toward the flange in any radial direction away from the tube. The central body portion is provided with a opening in the portion of the wall thereof between the tube and the chin engaging portion and a diffuser member is positioned in said opening, the diffuser member having an inlet providing co~nunication to the exterior of the mask and spaced outlets within the mask, said outlets extending transversely toward the side flanges.
:
Description of the Drawings FIG. 1 is a perspective view of a mask embodying the invention.
FIG. lo is a perspective view showing the mask in use on a patient.
FIG. 2 is a front elevation Al view of the mask.
FIG. 3 is a side elevation Al view of the mask.
FIG. 4 is a top elevations view of the mask.
FIG. 5 is a bottom elevation Al view of the mask.
FIG. 6 is a sectional view taken along the lines 6-6 in FIG. 2/ parts being removed.
FIG. 7 is a sectional view taken along the lines 7-7 in JIG. 6.
so FIG. 8 is a sectional view taken along -the lines 8~8 in FIG. 2, parts being broken away.
FIG. 9 is a sectional view taken along the line 9-9 in FIG. 3.
Description Referring to FIG. l, the inhalation mask lo embody-in the invention is made of a transparent resilient and flexible plastic material grade and is preferably made of a material such as transparent polyvinyl chloride having a dormitory of 60 plus or minus two on the A scale. Such a plastic is made by Alpha Chemical and Plastics Company of Newark, New Jersey under the designation 2222C60, To Green.
As shown in FIGS. 1-9, the inhalation mask lo come lo proses a central body portion if which has a convex exterior surface 12 and a concave interior surface 13 (FIGS. 6-8) and is of generally triangular peripheral configuration. The mask lo includes an integral flange 14 that surrounds the triangular periphery of the body portion if and defines an upper apex 15 which is adapted to engage the forehead adjacent the bridge of the nose, side portions 1.6r 17 thaw extend along the face of the victim and a base portion 18 that enrages the chin of the victim (FIG. 2). As further shown in FIGS. 1-8, the central body portion if includes an integral tube lo extending axially outwardly from the convex surface 12.
The apex 15 of the flange is curved outwardly toward tube 9 as shown in FIGS. 3, and 6 and is adapter to enqa~e the recoiled The base 18 it also curved outw~rclly toward ` the tube 19 for greater conformity with the chin.
Jo 25 The flange 12 further includes an annular continuous thickened portion defining an integral read 20 at the junior of the periphery ox the central body portion end the Earl 12 .
Lyle that extends axially away from the tube 19 and toward the face of the victim and assists in providing an air-tight seal with the face of the victim. The radial width of the bead 20 is such that the flange 12 extends radially outwardly burled the head 20 and assists in creating the seal.
The thickness of the central body portion 11 decreases gradually toward the flange 12 as shown in FIGS. 6-8. The thickness is greater in transverse section (FIGS. 7, 8) than in vertical section (FIG. 6). In this manner, the mask is rigid enough at the center of portion 12 so that it can be firmly held on the face and yet flexible enough at the periphery to sealingly engage the face.
The tube 19 includes radial openings 21 which lung-lion to insure that the interior of the mask is ventilated -to ; 15 the exterior when the mask is pressed against the face and the end of tube 19 is inadvertently closed by the hand ox the rescuer. Tube 20 has an inner diameter and an outer diameter dimensioned to be adaptable to receive the connector of a bag resuscitator or supplemental oxygen apparatus as established by the T-29 ASTM Commuter on Safety Requirements of Resuscitators intended for use with Humans, namely, 15mm and 22mm.
The body portion includes an opening 22 (FIG. 8) for receiving a diffuser 23 that comprises an axially extend-in portion 24 having an opening aye and an enlarged portion 25 within the mask. The enlarged portion has transversely extending openings 26 that communicate with the opening aye of the tubular portion. nut 27 is threaded on the tubular portion. The diffuser member and nut are preferably made of a rigid plastic such as Delxin. The positioning of the openings 26 transversely directs the oxygen laterally against the wall of the central body portion 11 so that it does no-t flow directly from the opening aye to the mouth and nose of the victim, minimizes the possibility of foreign matter such as vomit from interfering with the passages. The adapter 23 is utilized in connection with auxiliary oxygen apparatus for supplying oxygen to the mask.
As shown in Foggily , the mask further includes spaced holes 27 in the flange portion along the sides of the flange 12 near the base portion 18. A base 29, preferably made of tubular natural latex, has its ends threaded through the open-ins 24 to fasten and adjustable connect the band 25 to the mask.
When used with a supplemental oxygen apparatus, a tube from the apparatus is connected to the axially extending portion 24 of the diffuser 23. The rescuer than places the mask o'er the face of the victim, and attaches the band if time permits so that oxygen will be supplied through the diffuser 23. The victim can exhale through the central open-in of tube 19~ In the event that when the rescuer presses the mask against the aye, inadvertently obstructs the eons of tube l3r the radial opines oh offer continuing ventila-lion to the atmosphere.
When the mask is utilized with a bag resusci~ator,the resuscitator is conrlected to tube I covering oE)eninqs Al i .
and the diffuser functions as a ventilator.
When used for mouth-to-mask resuscitation, the rescuer applies the mask to the face and attaches the head band 25 about the head of the victim. He then is able to blow through the tubular portion, covering opening 24 with his mouth, supplying air to the victim.
It can -thus be seen that the mask can be utilized for supply of air from a hag resuscitator or for mouth-to-mask supply of air without any changes in the mask. Moreover, the mask can be utilized for mouth-to-mask resuscitation even when -the oxygen apparatus is attached to the mask. The mask is simple in construction and -therefore low in cost, is flex-isle and can be readily stored. When used for mouth-to-mask resuscitation, the mask reduces the risk of infection and lo permits the rescuer to function and provide an increased amount of needed oxygen with less apprehension regarding infection or vomiting thaw might occur. The mask permits the rescuer to position the mask in the best possible position on the face, minimizes the risk of over-inflation of the victim's lungs and stomach and enables the rescuer to con Stanley monitor the mouth and nose. Further the mask provides proper ventilation at all times for exhalation by the victim .
Claims
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1.
An inhalation mask which can be used for supplying supplemental oxygen and mouth-to-mouth resuscitation comprising a central body portion made of transparent resilient flexible plastic material having a durometer of about 60 +2 on the A scale, said central body portion including a concave inner surface and a convex exterior surface, said central body portion being adapted to be placed over the nose and mouth of a victim, said body portion having a generally triangular periphery, said central body portion having a tubular extension integral therewith and extending outwardly from the convex exterior surface substantially centrally thereof, said tubular extension having an opening providing fluid communication between the interior of the mask and the atmosphere and being adapted for connecting supplemental oxygen apparatus for supplying oxygen through the opening of said tubular extension or for mouth-to-mask resuscitation through the opening of said tubular extension, an integral peripheral flange extending laterally outwardly from the peripheral edge of said body portion, said flange having a face engaging surface, said flange including an apex portion extending along the apex of said body portion adapted to engage the forehead, side portions of said flange extending along the sides of said body portion being adapted to engage the face and a base portion of said flange extending along the base of the body portion adapted to engage the chin, the thickness of the wall of said central body portion decreasing gradually toward the flange in any radial direction away from the tubular extension such that the mask is sufficiently rigid at the center portion and sufficiently flexible at the periphery to accommodate to the face, said central body portion being provided with an opening in the portion of the wall thereof between the tubular extension and the base portion, a diffuser member positioned in said opening adapted to be connected to a source of oxygen to provide oxygen to the interior of said mask, said diffuser member having an axial inlet adapted to be attached to a source of oxygen, said inlet providing communication to the exterior of the mask and spaced outlets communicating with said axial inlet and extending within the mask, said outlets extending transversely toward the side portions of the flange so that oxygen does not flow directly from the axial outlet to the mouth and nose and the possibility of foreign matter interfering with the outlets is minimized, said diffuser member being made of a body of plastic material and including an axial extending portion having said axial inlet extending through the opening and enlarged portion within the mask, said spaced outlets within said mask communicating with the axial inlet and extending transversely to direct oxygen along the inner surface of the mask, and means for holding said diffuser member in position, said diffuser member being made of rigid plastic material, said flange having an integral sealing bead on said face engaging surface of said flange, said bead being aligned with the periphery of said central body portion at the junction of said body portion and said flange and having a greater thickness than said flange and extending axially from said surface thereof for engaging the bridge of the nose at the apex of the flange, the sides of the face and the chin to provide an air-tight seal, said flange being wider than said bead and extending laterally outwardly beyond said bead, such that when the mask is used for resuscitation, the flange assists the bead to provide a seal about the mask when the mask is pressed against the face, the apex portion being curved outwardly toward the tubular extension for engagement of the forehead adjacent the bridge of the nose and the portion of the sealing rib associated with the apex portion thereby sealingly engaging the bridge of the nose.
2.
The inhalation mask set forth in claim 1 wherein said tubular extension has a plurality of circumferentially spaced radially extending openings therethrough to insure that the interior of the mask to ventilate to the exterior when the mask is pressed against the face and the end of the tubular extension is inadvertently closed by the hand of the rescuer.
3.
The inhalation mask set forth in claim 1 wherein the thickness of said central body portion is greater in a transverse section through the side portions of the flange than in a vertical section through the apex and base portion of said flange.
4.
The inhalation mask set forth in claim 1 wherein said diffuser member is made of a body of plastic material and includes an axial extending portion extending through the opening and enlarged portion within the mask, said spaced outlets within said mask communicating in the said opening and extending transversely to direct air along the inner surface of the mask, said axially extending portion being threaded, ]and a nut threaded onto the exterior of said axially extending portion for holding staid diffuser member in position, said diffuser member and nut being made of rigid plastic material.
5.
The inhalation mask set forth in claim l wherein said peripheral flange is formed with spaced openings along the sides of the flange and a tubular head engaging band having its ends threaded respectively through the openings.
1.
An inhalation mask which can be used for supplying supplemental oxygen and mouth-to-mouth resuscitation comprising a central body portion made of transparent resilient flexible plastic material having a durometer of about 60 +2 on the A scale, said central body portion including a concave inner surface and a convex exterior surface, said central body portion being adapted to be placed over the nose and mouth of a victim, said body portion having a generally triangular periphery, said central body portion having a tubular extension integral therewith and extending outwardly from the convex exterior surface substantially centrally thereof, said tubular extension having an opening providing fluid communication between the interior of the mask and the atmosphere and being adapted for connecting supplemental oxygen apparatus for supplying oxygen through the opening of said tubular extension or for mouth-to-mask resuscitation through the opening of said tubular extension, an integral peripheral flange extending laterally outwardly from the peripheral edge of said body portion, said flange having a face engaging surface, said flange including an apex portion extending along the apex of said body portion adapted to engage the forehead, side portions of said flange extending along the sides of said body portion being adapted to engage the face and a base portion of said flange extending along the base of the body portion adapted to engage the chin, the thickness of the wall of said central body portion decreasing gradually toward the flange in any radial direction away from the tubular extension such that the mask is sufficiently rigid at the center portion and sufficiently flexible at the periphery to accommodate to the face, said central body portion being provided with an opening in the portion of the wall thereof between the tubular extension and the base portion, a diffuser member positioned in said opening adapted to be connected to a source of oxygen to provide oxygen to the interior of said mask, said diffuser member having an axial inlet adapted to be attached to a source of oxygen, said inlet providing communication to the exterior of the mask and spaced outlets communicating with said axial inlet and extending within the mask, said outlets extending transversely toward the side portions of the flange so that oxygen does not flow directly from the axial outlet to the mouth and nose and the possibility of foreign matter interfering with the outlets is minimized, said diffuser member being made of a body of plastic material and including an axial extending portion having said axial inlet extending through the opening and enlarged portion within the mask, said spaced outlets within said mask communicating with the axial inlet and extending transversely to direct oxygen along the inner surface of the mask, and means for holding said diffuser member in position, said diffuser member being made of rigid plastic material, said flange having an integral sealing bead on said face engaging surface of said flange, said bead being aligned with the periphery of said central body portion at the junction of said body portion and said flange and having a greater thickness than said flange and extending axially from said surface thereof for engaging the bridge of the nose at the apex of the flange, the sides of the face and the chin to provide an air-tight seal, said flange being wider than said bead and extending laterally outwardly beyond said bead, such that when the mask is used for resuscitation, the flange assists the bead to provide a seal about the mask when the mask is pressed against the face, the apex portion being curved outwardly toward the tubular extension for engagement of the forehead adjacent the bridge of the nose and the portion of the sealing rib associated with the apex portion thereby sealingly engaging the bridge of the nose.
2.
The inhalation mask set forth in claim 1 wherein said tubular extension has a plurality of circumferentially spaced radially extending openings therethrough to insure that the interior of the mask to ventilate to the exterior when the mask is pressed against the face and the end of the tubular extension is inadvertently closed by the hand of the rescuer.
3.
The inhalation mask set forth in claim 1 wherein the thickness of said central body portion is greater in a transverse section through the side portions of the flange than in a vertical section through the apex and base portion of said flange.
4.
The inhalation mask set forth in claim 1 wherein said diffuser member is made of a body of plastic material and includes an axial extending portion extending through the opening and enlarged portion within the mask, said spaced outlets within said mask communicating in the said opening and extending transversely to direct air along the inner surface of the mask, said axially extending portion being threaded, ]and a nut threaded onto the exterior of said axially extending portion for holding staid diffuser member in position, said diffuser member and nut being made of rigid plastic material.
5.
The inhalation mask set forth in claim l wherein said peripheral flange is formed with spaced openings along the sides of the flange and a tubular head engaging band having its ends threaded respectively through the openings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54578383A | 1983-10-27 | 1983-10-27 | |
| US545,783 | 1983-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1226504A true CA1226504A (en) | 1987-09-08 |
Family
ID=24177528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000451905A Expired CA1226504A (en) | 1983-10-27 | 1984-04-12 | Inhalation mask |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1226504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465712A (en) * | 1993-07-30 | 1995-11-14 | Valley Forge Scientific Corporation | Resuscitation mask having ribs in the air flow conduit and mask body |
| CN114534132A (en) * | 2022-03-16 | 2022-05-27 | 枣庄市立医院 | Infection-preventing protection device convenient for liver disease nursing |
-
1984
- 1984-04-12 CA CA000451905A patent/CA1226504A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465712A (en) * | 1993-07-30 | 1995-11-14 | Valley Forge Scientific Corporation | Resuscitation mask having ribs in the air flow conduit and mask body |
| CN114534132A (en) * | 2022-03-16 | 2022-05-27 | 枣庄市立医院 | Infection-preventing protection device convenient for liver disease nursing |
| CN114534132B (en) * | 2022-03-16 | 2022-12-16 | 枣庄市立医院 | Infection-preventing protection device convenient for liver disease nursing |
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| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |