CN209827885U - Trachea fistulization mouth shelters from device - Google Patents

Trachea fistulization mouth shelters from device Download PDF

Info

Publication number
CN209827885U
CN209827885U CN201920269303.1U CN201920269303U CN209827885U CN 209827885 U CN209827885 U CN 209827885U CN 201920269303 U CN201920269303 U CN 201920269303U CN 209827885 U CN209827885 U CN 209827885U
Authority
CN
China
Prior art keywords
tracheostoma
panel
shielding device
groove
contact pad
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.)
Active
Application number
CN201920269303.1U
Other languages
Chinese (zh)
Inventor
程平
邹秀群
吴波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Cancer Hospital
Original Assignee
Sichuan Cancer Hospital
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Cancer Hospital filed Critical Sichuan Cancer Hospital
Priority to CN201920269303.1U priority Critical patent/CN209827885U/en
Application granted granted Critical
Publication of CN209827885U publication Critical patent/CN209827885U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The utility model relates to a tracheal stoma shielding device, which comprises a panel, a positioning part and an air filter, wherein the panel is of an arc sheet structure, the panel comprises an outer surface and an inner surface, the outer surface is provided with a plurality of outer air holes, the inner surface is provided with a plurality of inner air holes, the panel is provided with a groove for installing the air filter, and the outer air holes and the inner air holes are respectively communicated with the groove; the positioning part comprises a supporting pad with a cylindrical structure and a contact pad with a horn-shaped structure, one end of the supporting pad is communicated with the inner surface, the other end of the supporting pad is communicated with the contact pad, and the contact pad has elasticity; this shelter from device, compact structure, convenient to use, not only can be firm be fixed in tracheostomy department, prevent to take place the position change in the use, the installation and the change process of filter effect good, air filter are simple moreover.

Description

Trachea fistulization mouth shelters from device
Technical Field
The utility model relates to a postoperative care articles for use technical field, concretely relates to tracheostomy shelters from device.
Background
After a laryngocarcinoma patient is subjected to total laryngectomy, a permanent tracheostoma usually exists, the tracheostoma is exposed outside a body, on one hand, water or other foreign matters easily fall into the tracheostoma to cause inhalation pneumonia and asphyxia, and on the other hand, dust and the like entering a respiratory tract through the tracheostoma can reduce the human body defense capacity to cause lung tissue lesion and disease occurrence; care must also be taken post-operatively for patients with tracheostomy.
In the prior art, some devices for protecting a tracheostoma are disclosed, for example, a tracheostoma protecting device disclosed in chinese patent CN 204684387U, comprising a tracheostoma protecting device body, an upper 1/3 part of which has a radian fitting with a neck and is in an eave shape; the middle of the body is provided with a grid which is matched with the tracheostoma and is used for ventilation; two side walls of the body are provided with preset widths, and a fixing ring for fixing the body is respectively arranged on the two side walls; the tracheostoma is shielded by the tracheostoma protecting device body, so that the protecting function is realized; for another example, the protection cover for tracheotomy fistula disclosed in chinese patent CN 204563219U comprises a housing body, wherein two ends of the housing body are respectively provided with a connecting hole, the middle part of the front end of the housing body is provided with an opening, an annular protrusion is formed on the housing body corresponding to the opening, and a filter cover is arranged on the annular protrusion; the filtering gauze is adopted by the filtering cover so as to realize the purification of air and the protection of the tracheostoma. The Chinese patent CN 208259810U discloses a laryngeal incision protective cover, which comprises a main body, wherein the main body is of a cylindrical structure, the bottom and the periphery of the main body are of side net structures, and the top end of the main body is provided with a protective cover; be equipped with the buckle on the both sides of main part, the buckle is connected with the fixed band, and the bottom of main part is equipped with the soft post of silica gel, can the humidifying air flue, again can the filtered air suspended solid to the realization is to the protection of tracheostomy.
However, the conventional devices for protecting a tracheostoma generally have the following problems that 1, the fixation is not firm, and the tracheostoma is usually arranged at a position below the neck and the throat of a patient; 2. the existing devices for protecting tracheostomy openings are generally relatively complex in structure and the components for air filtration are not easily replaced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to improve the not enough that exists among the prior art, provide a tracheostoma and shelter from device, compact structure, convenient to use, it is not only fixed firm, be convenient for change filtration part moreover.
The utility model adopts the technical proposal that:
a tracheal stoma shielding device comprises a panel, a positioning part and an air filter, wherein the panel is of an arc-shaped sheet structure and comprises an outer surface and an inner surface, the outer surface is provided with a plurality of outer air holes, the inner surface is provided with a plurality of inner air holes, the panel is provided with a groove for mounting the air filter, and the outer air holes and the inner air holes are respectively communicated with the groove; the positioning part comprises a supporting pad of a cylindrical structure and a contact pad of a horn-shaped structure, one end of the supporting pad is communicated with the inner surface, the other end of the supporting pad is communicated with the contact pad, and the contact pad has elasticity.
Preferably, the shape of the panel may be circular or rectangular or oval.
Preferably, the panel is made of plastic or rubber or silicone material.
Further, the panel upper surface still is provided with arc notch.
Furthermore, a water containing groove is arranged in the panel, is positioned below the groove and is communicated with the groove.
Preferably, the side wall of the groove has a taper, and the width of the groove gradually decreases from the bottom of the groove to the opening of the groove.
Preferably, the support pad is of a cylindrical or elliptical cylindrical configuration.
Preferably, the contact pad is made of a silicone material.
Further, the contact pad is provided with lines or concave-convex structures for increasing friction force.
Furthermore, the inner side of the contact pad is provided with a circle of annular flange, the annular flange and the support pad are coaxial or are obliquely arranged towards the direction of the central axis, and the annular flange is used for clamping the tracheostoma.
Preferably, the material of the annular flange is the same as the material of the support pad.
Furthermore, the panel support device further comprises a compression spring, the compression spring is sleeved on the outer side of the support pad, one end of the compression spring is connected with the panel, the other end of the compression spring is connected with the contact pad, and the compression spring is used for pressing the contact pad.
Further, the edge of internal surface still is provided with the cyclic annular boss of round, cyclic annular boss adopts the silica gel material to make, and cyclic annular boss is used for supporting the panel to be used for increasing area of contact.
Preferably, each of the outer air holes is not coaxial with each of the inner air holes.
Further, the outer surface is provided with stripes, and/or textures, and/or patterns, and/or colors for decoration.
Furthermore, still include the lacing tape, the both sides of panel are provided with the journal stirrup respectively, the one end of lacing tape is fixed in respectively the journal stirrup, and the other end is provided with the magic subsides or the snap-fastener of mutual adaptation respectively.
Preferably, the tightening strap has elasticity.
The air bag further comprises movable gaskets, the movable gaskets are respectively arranged in the inner side air holes outside the range of the supporting pads, the movable gaskets are used for sealing the corresponding inner side air holes when a patient inhales air, and the inner side air holes are opened when the patient exhales air.
Preferably, the movable gasket is a circular rubber sheet, the inner side air hole is a stepped hole, the movable gasket is arranged at the stepped part of the inner side air hole, a connecting column is arranged in the inner side air hole, one end of the connecting column is connected with the movable gasket, the other end of the connecting column is connected with the panel through a plurality of radial plates, and the connecting column is used for fixing the movable gasket; when the patient inhales, the movable gasket is tightly attached to the step of the inner side air hole, and the movable gasket is far away from the step of the inner side air hole.
Compared with the prior art, use the utility model provides a pair of tracheostoma shelters from device, compact structure, convenient to use, not only can be firm be fixed in tracheostoma department, prevent to take place the position change in the use, moreover the filter effect good, the installation of air filter is simple with the change process, in addition, this tracheostoma shelters from device structure pleasing to the eye, generous, still is favorable to reinforcing patient's confidence.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a front view of a shielding device for a tracheostoma according to an embodiment of the present invention 1.
Fig. 2 is a schematic view of a rear view structure of a shielding device for a tracheostoma of the present invention provided in embodiment 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a view from a-a of fig. 3.
Fig. 5 is a schematic three-dimensional structure diagram of a tracheostoma shielding device provided in embodiment 1 of the present invention.
Fig. 6 is a front view of a shielding device for a tracheostoma according to embodiment 2 of the present invention.
Fig. 7 is a schematic cross-sectional view of fig. 6.
Fig. 8 is a schematic view of a tracheostoma shielding device provided in embodiment 2 of the present invention, which is disposed at the tracheostoma.
Fig. 9 is a schematic view of a part of an inner side air hole of a tracheostoma shielding device provided in embodiment 3 of the present invention, showing a suction state.
Fig. 10 is a left side view of fig. 9.
Fig. 11 is a schematic view of a part of an inner side air hole in the tracheostoma shielding device provided in embodiment 3 of the present invention, showing an expiratory status.
Description of the drawings
A panel 101, an outer surface 102, an outer air hole 103, an inner surface 104, an inner air hole 105, a groove 106, an arc-shaped notch 107, a water containing groove 108, an annular boss 109, a support lug 110,
a positioning portion 201, a support pad 202, a contact pad 203, an annular flange 204,
the air-filter sheet 301 is provided with,
the tightening band 401, the a side 402, the B side 403,
a tracheostoma 501, skin 502,
a removable shim 601, a web 602, and a connecting post 603.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present embodiment provides a blocking device for a tracheostoma 501, comprising a panel 101, a positioning portion 201 and an air filter 301, wherein the panel 101 is an arc-shaped sheet structure so as to be adapted to the shape of the neck of a human body; the panel 101 comprises an outer surface 102 and an inner surface 104, the outer surface 102 is provided with a plurality of outer air holes 103, the inner surface 104 is provided with a plurality of inner air holes 105, the panel 101 is provided with a groove 106 for mounting the air filter sheet 301, and the outer air holes 103 and the inner air holes 105 are respectively communicated with the groove 106; the positioning portion 201 comprises a supporting pad 202 with a cylindrical structure and a contact pad 203 with a horn-shaped structure, one end of the supporting pad 202 is communicated with the inner surface 104, the other end of the supporting pad is communicated with the contact pad 203, and the contact pad 203 has elasticity, so that better fixing and positioning effects can be realized, and the change of the position of the blocking device of the tracheostoma 501 can be avoided.
As shown in fig. 3 and 4, in the present embodiment, the supporting pad 202 has a certain height, so that the inner surface 104 of the faceplate 101 can be prevented from directly contacting the skin 502 of the patient when the patient wears the tracheostoma 501 shielding device provided in the present embodiment.
In this embodiment, the air filter 301 uses a PM2.5 activated carbon filter. PM2.5 active carbon filter, with low costs, the filter effect is good.
In a preferred embodiment, the shape of the panel 101 may be circular, rectangular, oval, etc., for example, as shown in fig. 1, the panel 101 in this embodiment is an oval structure.
In a more complete scheme, the blocking device for the tracheostoma 501 provided by the embodiment further comprises a tightening belt 401, wherein the two sides of the panel 101 are respectively provided with a support lug 110, as shown in fig. 5, one end of the tightening belt 401 is respectively fixed on the support lug 110, and the other end is respectively provided with a magic tape or a snap fastener which are mutually matched.
For example, as shown in fig. 5, one end (i.e. the free end) of one fastening strip 401 may be provided with a surface a 402 of a hook and loop fastener of a certain length so as to be suitable for different patients to use, and one end of the other fastening strip 401 is provided with a surface B403 of a hook and loop fastener, so that when a patient wears the tracheostoma 501 shielding device, the patient may first wrap the fastening strip 401 around the neck, then align the contact pad 203 with the tracheostoma 501, and finally tighten the fastening strip 401 by matching the surface a 402 with the surface B403, so that the tracheostoma 501 shielding device is firmly bound on the neck of the patient; because the contact pad 203 has elasticity, the contact pad is properly deformed under the constraint force of the tightening belt 401 and is matched with the contour of the skin 502 of the patient, so that the contact pad is tightly contacted with the skin 502 of the patient, the contact area is increased, the fixation of the position of the shielding device of the tracheostoma 501 is favorably realized, and the position of the shielding device of the tracheostoma 501 is prevented from being changed in the using process; in addition, after the contact pad 203 deforms under the action of the constraint force, certain elastic force can be generated, so that the contact pad is more favorable for being tightly attached to the skin 502 of a patient, the friction force is increased, and a better fixing effect is realized; after the patient wears the tracheostoma 501 shielding device, the external air can sequentially pass through the outer air hole 103, the air filter sheet 301, the inner air hole 105, the channel formed by the supporting pad 202 and the contact pad 203 to enter the tracheostoma 501.
In a more preferred embodiment, the tightening strap 401 may have a certain elasticity so as to be pressed against the patient's skin 502, resulting in a continuous tightening force.
In the preferred embodiment, the contact pads 203 are preferably made of a silicon material. The contact pad 203 made of silicone material is soft and elastic, and can make the patient feel more comfortable.
In a preferred embodiment, the panel 101 is made of plastic or rubber or silicone material.
Further, panel 101 upper surface still is provided with arc notch 107, and existing weight reduction that does benefit to can avoid this tracheostoma 501 to shelter from device and patient's other positions again, like the chin, take place to interfere.
Furthermore, a water containing groove 108 is further arranged in the panel 101, the water containing groove 108 is located below the groove 106 and is communicated with the groove 106, and the water containing groove 108 can be used for storing water entering from the outside and can also be used for containing certain water in the water containing groove 108 in advance so as to humidify air entering the patient.
In a preferred embodiment, the side wall of the groove 106 is tapered, that is, as shown in fig. 4, the width of the groove 106 gradually decreases from the bottom of the groove 106 to the mouth of the groove 106, when the air filter sheet 301 is installed, two sides of the panel 101 can be manually pressed to enlarge the gap at the mouth of the groove 106 (because the panel 101 is made of plastic, rubber or silicone material and has a certain deformability), so as to put in the air filter sheet 301, and when the air filter sheet 301 is put in, the mouth of the groove 106 automatically returns to the original width by releasing the hand, so as to compress the air filter sheet 301; when the air filter sheet 301 needs to be replaced, the air filter sheet 301 is pulled out of the arc-shaped notch 107, and the operation is very simple and convenient.
In a preferred embodiment, the supporting pad 202 has a cylindrical structure or an elliptical cylindrical structure, as shown in fig. 2, 4 or 5, and in this embodiment, the supporting pad 202 has a cylindrical structure for preventing the panel 101 from directly contacting the skin 502.
Further, the contact pad 203 is provided with a texture or a concave-convex structure for increasing friction force, so as to enhance a shielding device for the tracheostoma 501 and prevent the contact pad 203 from moving relative to the tracheostoma 501.
In this embodiment, the outer air holes 103 are not coaxial with the inner air holes 105, so as to prevent external water or foreign matters from directly entering the tracheostoma 501, and in this embodiment, the outer air holes 103 and the inner air holes 105 may be arranged in different ways, such as in a matrix, in an equilateral triangle, and in different shapes, such as circular holes, square holes, rhombic holes, and the like, which are not described herein again.
In a further aspect, the outer surface 102 is provided with a stripe, and/or texture, and/or pattern, and/or color for decoration, so as to make the present tracheostoma 501 shielding device more aesthetic, which is beneficial for enhancing the self-confidence of the patient.
In a further scheme, a ring of annular bosses 109 are further arranged at the edge of the inner surface 104, as shown in fig. 2 or fig. 4, the annular bosses 109 are made of a silicone material, and the annular bosses 109 are used for supporting the panel 101 and are used for contacting with the skin 502 of the patient, so that the contact area can be effectively increased, and the position of the device covered by the tracheostoma 501 can be better prevented from being changed.
Example 2
The main difference between this embodiment 2 and the above embodiment 1 is that in the blocking device for the tracheostoma 501 provided in this embodiment, a ring-shaped flange 204 is provided on the inner side of the contact pad 203, and the ring-shaped flange 204 is coaxial with the support pad 202 or is inclined towards the central axis, as shown in fig. 6 and 7, the ring-shaped flange 204 is used for blocking the tracheostoma 501.
As shown in fig. 8, when the device covered by the tracheostoma 501 is worn on the neck of a patient, the connection part of the annular flange 204 and the supporting pad 202 can be exactly clamped at the edge of the tracheostoma 501, so that the position of the device covered by the tracheostoma 501 can be effectively prevented from being changed.
In a preferred embodiment, the material of the annular flange 204 is the same as that of the support pad 202, and for example, the annular flange and the support pad may be made of a silicone material, which not only meets the requirement, but also prevents damage to the tracheostoma 501.
In a further scheme, the portable electronic device further comprises a compression spring, the compression spring is sleeved outside the supporting pad 202, one end of the compression spring is connected with the panel 101, the other end of the compression spring is connected with the contact pad 203, and the compression spring is used for pressing the contact pad 203; when the tracheostoma 501 shielding device is arranged behind the neck of a patient, the contact pad 203 is contacted with the skin 502 of the patient by virtue of the elasticity of the contact pad, but the contact force is limited, particularly the outermost edge of the contact pad 203 has the worst contact effect and the weakest friction force; after the compression spring is arranged, under the condition that the compression spring is compressed, certain elastic force can be generated and acts on the contact pad 203, so that the contact pad 203 can be better in close contact with the skin 502 of a patient, the friction force is increased, and the fixing effect is enhanced.
Example 3
The main difference between this embodiment 3 and the above embodiment 2 is that the blocking device for the tracheostoma 501 provided in this embodiment further includes movable spacers 601, the movable spacers 601 are respectively disposed in the inner air holes 105 outside the range of the supporting pad 202, the movable spacers 601 are used for closing the corresponding inner air holes 105 when the patient inhales, and opening the inner air holes 105 when the patient exhales, that is, the movable spacers 601 are used for making the inner air holes 105 one-way open; so that the air exhaled by the patient can be directly exhausted from the inner side air holes 105 without being exhausted through the air filter 301, and the breathing of the patient is more smooth and convenient.
As an example, the movable gasket 601 may adopt a piston gasket structure in the air pump; as shown in fig. 9 and 10, the movable gasket 601 is made of a circular rubber sheet, the inner air hole 105 is a stepped hole, the movable gasket 601 is disposed at the step of the inner air hole 105, a connection column 603 is disposed in the inner air hole 105, one end of the connection column 603 is connected to the movable gasket 601, the other end is connected to the panel 101 through a plurality of spokes 602, and the connection column 603 is used for fixing the movable gasket 601; when the patient inhales, negative pressure is generated inside the inner air hole 105, so that the movable gasket 601 is tightly attached to the step of the inner air hole 105, thereby closing the inner air hole 105, and as shown in fig. 9, air can only enter the tracheostoma 501 through the outer air hole 103 and the air filter 301; when the patient exhales, positive pressure is generated inside the inner side air hole 105, so that the movable gasket 601 is away from the step of the inner side air hole 105, as shown in fig. 11, thereby achieving the purpose of opening the inner side air hole 105, and air can be directly discharged out of the shielding device of the tracheostoma 501 through the inner side air hole 105.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. A tracheal stoma shielding device is characterized by comprising a panel, a positioning part and an air filter, wherein the panel is of an arc-shaped sheet structure and comprises an outer surface and an inner surface, the outer surface is provided with a plurality of outer air holes, the inner surface is provided with a plurality of inner air holes, the panel is provided with a groove for mounting the air filter, and the outer air holes and the inner air holes are respectively communicated with the groove; the positioning part comprises a supporting pad of a cylindrical structure and a contact pad of a horn-shaped structure, one end of the supporting pad is communicated with the inner surface, the other end of the supporting pad is communicated with the contact pad, and the contact pad has elasticity.
2. The tracheostoma shielding device according to claim 1, wherein the panel is circular, rectangular or elliptical in shape, an arc-shaped notch is formed in the upper surface of the panel, and a water containing groove is further formed in the panel and is positioned below the groove and communicated with the groove.
3. A tracheostoma shielding device according to claim 1, wherein the width of the groove decreases gradually in the direction from the bottom of the groove to the mouth of the groove.
4. The tracheostoma shielding device according to claim 1, wherein the support pad is a cylindrical or elliptical cylindrical structure.
5. The tracheostoma shielding device according to claim 1, wherein the contact pad is made of a silicone material.
6. A tracheostoma shielding device according to any one of claims 1 to 5, wherein the contact pad is provided on the inside with a ring-shaped flange, which is arranged coaxially with the support pad or obliquely in the direction of the central axis, for catching the tracheostoma.
7. The tracheostoma shielding device according to claim 6, further comprising a compression spring sleeved outside the supporting pad, wherein one end of the compression spring is connected with the panel, the other end of the compression spring is connected with the contact pad, and the compression spring is used for pressing the contact pad.
8. The tracheostoma shielding device according to claim 6, wherein a circle of annular boss is further arranged at the edge of the inner surface, the annular boss is made of a silica gel material, and the annular boss is used for supporting the panel and increasing the contact area.
9. The tracheostoma shielding device according to claim 6, further comprising movable gaskets respectively disposed in the inner air holes outside the supporting pad, the movable gaskets being configured to close the corresponding inner air holes when the patient inhales and to open the inner air holes when the patient exhales.
10. The tracheostoma shielding device according to claim 9, wherein the movable gasket is a circular rubber sheet, the inner air hole is a stepped hole, the movable gasket is arranged at the step of the inner air hole, a connecting column is arranged in the inner air hole, one end of the connecting column is connected with the movable gasket, the other end of the connecting column is connected with the panel through a plurality of radial plates, and the connecting column is used for fixing the movable gasket; when the patient inhales, the movable gasket is tightly attached to the step of the inner side air hole, and the movable gasket is far away from the step of the inner side air hole.
CN201920269303.1U 2019-03-04 2019-03-04 Trachea fistulization mouth shelters from device Active CN209827885U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920269303.1U CN209827885U (en) 2019-03-04 2019-03-04 Trachea fistulization mouth shelters from device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920269303.1U CN209827885U (en) 2019-03-04 2019-03-04 Trachea fistulization mouth shelters from device

Publications (1)

Publication Number Publication Date
CN209827885U true CN209827885U (en) 2019-12-24

Family

ID=68905221

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920269303.1U Active CN209827885U (en) 2019-03-04 2019-03-04 Trachea fistulization mouth shelters from device

Country Status (1)

Country Link
CN (1) CN209827885U (en)

Similar Documents

Publication Publication Date Title
US6192886B1 (en) Nasal mask
US20140251334A1 (en) Sleep apnea mask cover
US3585997A (en) Tracheostomy device
CN209827885U (en) Trachea fistulization mouth shelters from device
CN212393971U (en) N95 gauze mask convenient to laminating face
JP2002000748A (en) Mask auxiliary tool
US11358010B1 (en) Mask clip assembly with a housing having an exhaust port and one-way valve
KR200257107Y1 (en) Gas mask
CN211096842U (en) Noninvasive positive-pressure ventilation mouth-nose mask fixing band and breathing mask
CN213159054U (en) Full face formula protective equipment with electronic filtration air supply arrangement
CN111802727B (en) Infectious disease anti-suffocating mask device for department of respiration
CN211798347U (en) Intelligent gas mask
CN212038647U (en) Reusable double-channel mask
CN219146843U (en) Mask convenient for oxygen inhalation
CN216570357U (en) Mouth opening auxiliary closing belt for respiratory patient
CN212280001U (en) Medical anti-virus mask
CN217311509U (en) Mouth and nose integrated breathing mask
CN213432659U (en) Novel eye-protection epidemic-prevention mask
CN212488593U (en) Mask with breathing support frame
CN215455617U (en) Mask with sealing device
CN216701740U (en) Fan operation is with gauze mask that ventilative filterability is good
CN211932687U (en) Mask suitable for tracheotomy patient wears
CN214710568U (en) Novel medical mask for department of respiration
CN212141189U (en) Head-mounted breathing equipment
CN212545675U (en) Moisture-proof mask

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant