CN210494258U - A protection cage for oral surgery operation - Google Patents
A protection cage for oral surgery operation Download PDFInfo
- Publication number
- CN210494258U CN210494258U CN202020235617.2U CN202020235617U CN210494258U CN 210494258 U CN210494258 U CN 210494258U CN 202020235617 U CN202020235617 U CN 202020235617U CN 210494258 U CN210494258 U CN 210494258U
- Authority
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- China
- Prior art keywords
- mask
- side wall
- suction port
- patient
- surgical procedures
- 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 - Fee Related
Links
- 238000001356 surgical procedure Methods 0.000 title claims abstract description 20
- 210000000214 mouth Anatomy 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 210000003128 head Anatomy 0.000 claims abstract description 13
- 210000003296 saliva Anatomy 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 208000015181 infectious disease Diseases 0.000 abstract description 9
- 208000035473 Communicable disease Diseases 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 208000025721 COVID-19 Diseases 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 4
- 206010035664 Pneumonia Diseases 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 241000711573 Coronaviridae Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004438 eyesight Effects 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000001528 Coronaviridae Infections Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 230000005560 droplet transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a protective shield for oral surgery operation, which comprises a shield body, a mask layer and a protective cover, wherein the mask layer is supported by a support frame and is provided with an accommodating space; the cage body includes: the mask comprises a mask side wall, a mask front part, a mask rear part and an opening part; the mask sidewall includes: a left side wall, a right side wall, a lower side wall; the front part of the mask is transparent; the left side of the left side wall and the left side of the lower side wall are both provided with an operation inlet; the right side wall is provided with a first negative pressure suction port; the opening part is arranged at the back part or the lower side wall of the mask; when the mask is used, the head of a patient is positioned in the accommodating space, and an operation gap is formed between the face and the front part of the mask. The utility model provides a supply cage that oral cavity patient dressed becomes to defend initiatively passively for pollution ways such as possible droplet, saliva, sneeze are nipped and are gone out at the beginning of taking place, play the best supplementary protective effect, have still avoided the operation that medical personnel's multiple protection leads to not nimble enough, and the oral cavity that specially adapted prevented infectious disease period is diagnose.
Description
Technical Field
The utility model belongs to the field of medical equipment, a protective tool is related to, concretely relates to protection cage for oral surgery operation.
Background
The new coronavirus pneumonia (Corona Virus Disease 2019, COVID-19) is called new coronavirus pneumonia for short, and is pneumonia caused by 2019 new coronavirus infection, which is known to be highly infectious since the onset of 2019.
Experts point out that the main infection routes of COVID-19 are droplet infection, contact infection, aerosol infection and the like. As a high-risk group directly facing viruses, how to better protect medical staff becomes the focus of attention of all circles.
With respect to personal protective equipment, contact and droplet transmission precautions include wearing disposable gloves to protect both hands, wearing a clean, non-sterile, long-sleeved gown to protect clothing from contamination, wearing a medical mask or respirator to protect the nose and mouth, and wearing eye protection devices (e.g., goggles and face shields) prior to entering a suspected or confirmed patient ward in which covi-19 is administered. Surgical masks have been shown to be somewhat unusual in terms of blocking large droplets (droplets), i.e., some of the aerosol, from spreading. Respirators, such as N95, help to help the wearer avoid inhaling infectious droplets of the environment.
However, it is reported that a japanese doctor who is responsible for monitoring passengers on a diamond princess cruise ship who has received quarantine in the port of the crosscountry is infected with the virus although wearing a surgical mask and gloves. Needless to say, despite the layered protection, over 3000 healthcare workers still develop COVID-19 infections in a short 2 month period.
These infections pose the problem of exactly protecting against this critically occupational risk. Especially, the medical personnel in stomatology directly face the mouth and nose of the patient in a short distance in the diagnosis and treatment process, and the probability of spreading the droplets is very high during operation, and the conventional protection is possibly not safe enough. In an epidemic situation, even if ordinary oral diagnosis and treatment can be suspended, the emergency treatment of the oral cavity can not be suspended for a long time.
Therefore, there is a need for better safety precautions, especially when the health care workers may be faced with high risk of droplet dissemination, such as in oral surgery.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving current protective equipment and being not enough to effectively avoiding medical personnel to carry out the oral cavity and diagnose and suffer the technical problem of infecting, providing a protection casing that supplies the patient to dress, further effectively avoiding the viral propagation, and can not aggravate operating personnel's burden.
In order to achieve the above object, the present invention provides a protective shield for oral surgery, which comprises a shield body, wherein the shield body is formed by a mask layer supported by a supporting frame and has an accommodating space for accommodating the head of a patient; the isolation cover body comprises: the mask comprises a mask side wall, a mask front part, a mask rear part and an opening part; the mask sidewall comprising: a left side wall, a right side wall, a lower side wall; the front part of the mask is transparent; the left side of the left side wall and the left side of the lower side wall are both provided with operation inlets through which hands can pass; the right side wall is provided with a first negative pressure suction port which is a weak suction port and is used for sucking saliva in the oral cavity of a patient; the opening part is arranged at the back part of the mask or the lower side wall; in the using state, the head of the patient is positioned in the accommodating space through the opening part, and the face of the patient has an operation gap with the front part of the mask.
Preferably, the right side wall is further provided with: and the second negative pressure suction port is a strong suction port and is used for sucking the water vapor in the accommodating space.
Preferably, the first negative pressure suction port and/or the second negative pressure suction port is provided with a movable sealing surface or a movable door or a sleeve for sealing the suction ports.
Preferably, the movable sealing surface comprises: and one end of each elastic sheet or wire is fixed on the inner wall of the suction port, the other ends of the elastic sheets or wires face to the center of the suction port and are not connected with each other, and all the elastic sheets or wires are combined to form a sealing surface for the suction port.
Preferably, the isolation cover body is a cuboid, a cube, a hemisphere-like body or a sphere-like body.
Preferably, the mask layer at the front part of the mask is a transparent film layer; the mask side wall and the mask layer at the back part of the mask are breathable, and any one or combination of a plurality of non-woven fabric layers, cotton cloth layers, gauze layer or paper is selected.
Preferably, the operation inlet further comprises: a movable sealing surface or a movable door or a sleeve for sealing the operation inlet.
Preferably, the movable sealing surface comprises: and the other ends of the elastic sheets or wires face to the center of the operation inlet and are not connected with each other, and all the elastic sheets or wires are combined to form a sealing surface for the operation inlet.
Preferably, the isolation cover further comprises: and the fixing component is used for fixing the isolation cover body on the head of the patient.
Preferably, the isolation cover further comprises: at least one object placing component positioned in the isolation cover body and used for placing medical appliances which are not used temporarily, wherein the object placing component is arranged on the left side wall, the right side wall and/or the lower side wall of the face cover.
Preferably, the right side of the lower side wall of the mask is also provided with an instrument transfer port for auxiliary personnel to use.
Preferably, the instrument transfer port is further provided with: a movable sealing surface or a movable door or a sleeve used for an instrument transfer port.
The utility model provides a cage supplies the oral cavity patient to dress, and operation space control can effectively avoid spreading such as droplet or sneeze in the accommodation space of the cage of tight protection, and can not increase operating personnel's protection burden, can not influence operating personnel's operation flexibility ratio. The utility model provides a shield not only specially adapted is mainly used for the transmission way to diagnose for the oral cavity of infectious diseases epidemic periods such as droplet, prevents to suffer from in the bud also very necessary in conventional daily diagnosis and treatment, has better social and market prospect.
Drawings
Fig. 1 is a schematic structural view of a protective shield for oral surgery operation according to the present invention in a use state.
Fig. 2 is a perspective view of the protective shield for oral surgery operation of the present invention in a use state.
Fig. 3 is a schematic structural view of the utility model with a movable sealing surface at the operation inlet.
Description of reference numerals:
isolation cover body 1
Face mask layer
Side wall of face mask
Rear part 23 of the mask
Operation inlet 30
First negative pressure suction port 40
Second negative pressure suction port 50
Fixing member 60
And a placement member 80.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 and 2, a schematic structural diagram of a protective shield for oral surgery operation in use state comprises a shield body 1 which is a cuboid structure, is formed by supporting a mask layer by a support frame 10 and has a receiving space for placing a patient's head; the isolation cover body 1 comprises: a mask side wall, a mask front portion 22, a mask rear portion 23, and an opening portion (not shown); the mask sidewall comprising: left sidewall 211, right sidewall 212, lower sidewall 213; the front part 22 of the mask is transparent and is made of transparent mask materials, such as films; the left side of the left side wall 211 and the left side of the lower side wall 213 are both provided with an operation inlet 30 through which a hand can pass; the right side wall 212 is provided with a first negative pressure suction port 40, which is a weak suction port for introducing a suction device such as a saliva aspirator for sucking saliva or other waste generated by surgery in the mouth of a patient. The saliva sucker controls working state parameters by the oral cavity comprehensive treatment table. The opening part is arranged on the rear part 23 of the mask or the lower side wall 213; in the using state, the head of the patient is positioned in the accommodating space through the opening part, the front part of the mask is positioned right in front of the face of the patient, and an operating gap is formed between the face of the patient and the front part of the mask. The operating gap refers to a distance or space that facilitates the sampling action of the operator.
The size of the isolation hood body 1 is as follows: the length is 40cm, the height is 30cm, and the width is 30 cm. Of course, different sizes of cage can be designed in practice according to the needs.
Example 2
The utility model discloses a structure that cage body 1 is similar to the helmet embolias downwards from user's head top, and is fixed at the neck. The isolation cover body is a cuboid, a cube, a hemisphere or a similar hemisphere. As shown in fig. 1 and 2, the isolation hood body 1 is formed by supporting a mask layer by a support frame 10, and includes: mask side walls, a mask front portion 22, a mask rear portion 23, and an opening portion (not shown); the mask sidewall comprising: left sidewall 211, right sidewall 212, lower sidewall 213. Wherein, the opening part is arranged at the lower part of the lower side wall 213 and is used for being sleeved on the head of the patient. The front part 22 of the mask is transparent and is made of transparent mask materials, such as films; the left side of the left side wall 211 and the left side of the lower side wall 213 are both provided with an operation inlet 30 through which a hand can pass; the right side wall 212 is provided with a first negative pressure suction port 40 which is a weak suction port and is used for introducing a suction device such as a saliva aspirator and the like to suck saliva in the oral cavity of a patient or other wastes generated in the operation. In the using state, the head of the patient is positioned in the accommodating space through the opening part, and the face of the patient has an operation gap with the front part of the mask.
When carrying out the oral cavity operation of longer time, the face guard produces influence operation field of vision such as steam easily, for solving this problem, the utility model discloses still right side wall 212 set up second negative pressure suction mouth 50 to introduce powerful aspirator, be used for siphoning away steam, prevent that the cage from hazing, make the operation field of vision remain clear throughout. The powerful aspirator controls working state parameters by the oral cavity comprehensive treatment table.
In some embodiments, the inner wall of the operation inlet 30 is provided with a movable sealing surface (which may be substantially dust-proof, and need not be completely sealed), which maintains a sealed or closed state when an operator is not reaching for entry; when an operator needs to stretch hands into the isolation hood body 1, the thrust pushes away the movable sealing surface, and the operation inlet 30 is opened. As shown in fig. 3, the movable sealing surface includes: a plurality of elastic pieces 31, preferably of flexible material, fixed at one end to the inner wall of the operation inlet 30 and at the other end facing the center of the operation inlet 30 and not connected to each other, all the elastic pieces 31 combining to form a sealing surface to the operation inlet 30.
In another embodiment, the movable sealing surface is formed by elastic bristles which are circumferentially and fixedly arranged on the inner wall of the operation inlet, and the movable ends of the bristles point to the center of the operation inlet.
In another embodiment, the access opening 30 is further provided with a movable door or gate, which forms a seal with the access opening and can be opened as desired.
In another embodiment, the operation inlet 30 is further provided with a sleeve, which is fixed around the operation inlet, the sleeve is made of rubber, plastic, cloth or paper material, and the sleeve is stacked or naturally drooped to close the operation inlet when no operation is performed; when the glove is in work, an operator can penetrate the hand with the gloves into the accommodating space through the sleeve.
In some embodiments, the first negative pressure suction port 40 and the second negative pressure suction port 50 are further provided with a movable sealing surface or a movable door or a sleeve for sealing the suction ports, which makes the suction ports in a closed state similar to that when not being utilized, preventing dust and the like from entering; when the use is needed, the assistant staff can conveniently make hands pass through the suction port to perform the suction operation.
In some embodiments, the insulation cover body 1 may also be designed into a cube or a hemisphere-like or a sphere-like body as required, for example, the cross section of the insulation cover body is olive-shaped.
In some embodiments, the support frame at the edge of the mask rear portion 23 also has a fastening member 60, such as a cord, a strap, or the like, extending therefrom.
In some embodiments, in order to facilitate the delivery of other required instruments by the assistant, an instrument transfer port 70 is further formed on the right side of the lower side wall of the mask, and the instrument transfer port 70 may be a hole, and the hole may be provided with a movable sealing surface or a movable door or a sleeve for sealing the hole.
In some embodiments, the operation inlet 30, the first negative pressure suction port 40, the second negative pressure suction port 50 and the instrument transfer port 70 can be provided in a common use, and the functions can be converted according to the requirement.
In some embodiments, the insulation cover further comprises: at least one placement component 80 is arranged in the isolation cover body 1 and is used for placing medical appliances which are not used temporarily. The placement member 80 may be provided on the lower side wall, the left side wall, or the right side wall of the mask side wall, and fixed by the support frame 10. The article placing component can be an article placing table, an article placing box, an article placing rack, an article placing hook or an article placing bag.
The mask layer material of the mask side wall can be opaque, such as non-woven fabrics, gauze, cotton cloth, paper and other breathable materials.
The supporting frame is a supporting frame structure formed by metal strips or plastic rods.
The utility model discloses a use method of cage as follows:
1. the auxiliary personnel firstly wear the isolation cover of the utility model on the patient and fix the isolation cover on the head of the person to be sampled; a saliva aspirator is inserted through the first negative pressure suction port 40; putting a strong suction apparatus into the second negative pressure suction port 50;
2. an operator uses a left holding mouth mirror to extend into the isolation hood body through the operation inlet 30 on the left side wall, so that the mouth corner of a patient can be pulled, or the reflection of light can be helped in the oral cavity, and the internal situation of the oral cavity of the patient can be observed; a right hand-held surgical tool, such as a drill bit of a molar, extends into the isolation hood body through the operation inlet 30 on the left side of the lower side wall to perform surgical operation;
3. the surgical assistant delivers the instruments required by the operator through the instrument transfer port 70 on the right side of the lower sidewall, and the instruments which are not used temporarily can be placed on the placement member 80 or delivered to the assistant to be taken out; the assistant staff opens the saliva aspirator to suck saliva out of the mouth of the patient; when water vapor appears in the isolation cover, an assistant person opens the powerful aspirator to suck the water vapor in the accommodating space, so that liquid splashing during operation is avoided, and water mist on the front part of the mask is prevented when the isolation cover is particularly used, so that the operation visual field is always clear.
4. After the operation is finished, the isolation cover is taken down for disinfection treatment.
To sum up, the utility model provides a cage for oral cavity patient dresses becomes passive defense to the initiative defense for pollution ways such as possible droplet, saliva, sneeze are nipped and are gone out at the beginning of taking place, and the protection effect is very ideal. Moreover, the isolation cover is used by a patient, so that the defect that medical staff are not flexible enough in operation due to multiple protection and even can be infected even if the multiple protection is carried out is avoided, an excellent auxiliary protection effect is achieved, and the isolation cover is particularly suitable for oral diagnosis and treatment in infectious disease prevention periods.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A protective isolation cover for oral surgery operation is characterized by comprising an isolation cover body, wherein the isolation cover body is formed by supporting a mask layer by a supporting frame and is provided with an accommodating space for sleeving the head of a patient; the isolation cover body comprises: the mask comprises a mask side wall, a mask front part, a mask rear part and an opening part; the mask sidewall comprising: a left side wall, a right side wall, a lower side wall; the front part of the mask is transparent; the left side of the left side wall and the left side of the lower side wall are both provided with operation inlets through which hands can pass; the right side wall is provided with a first negative pressure suction port for sucking saliva in the oral cavity of a patient; the opening part is arranged at the back part of the mask or the lower side wall; in the using state, the head of the patient is positioned in the accommodating space through the opening part, and the face of the patient has an operation gap with the front part of the mask.
2. The protective shield for oral surgical procedures as recited in claim 1, wherein said right side wall further defines: and the second negative pressure suction port is used for sucking the water vapor in the accommodating space.
3. The protective shield for oral surgical procedures as claimed in claim 2, wherein said first and/or second negative pressure suction port is provided with a movable sealing surface or a movable door or a sleeve for sealing the suction port.
4. A protective shield for use in oral surgical procedures as in claim 3, wherein said movable sealing surface comprises: and one end of each elastic sheet or wire is fixed on the inner wall of the suction port, the other ends of the elastic sheets or wires face to the center of the suction port and are not connected with each other, and all the elastic sheets or wires are combined to form a sealing surface for the suction port.
5. The protective shield for oral surgical procedures as claimed in claim 1, wherein said mask layer of said front portion of said mask is a transparent film layer; the mask side wall and the mask layer at the back part of the mask are breathable, and any one or combination of a plurality of non-woven fabric layers, cotton cloth layers, gauze layer or paper is selected.
6. The protective shield for use in oral surgical procedures as recited in claim 1, wherein said procedure access port further comprises: a movable sealing surface or a movable door or a sleeve for sealing the operation inlet.
7. The protective shield for use in oral surgical procedures as recited in claim 1, wherein said shield further comprises: and the fixing component is used for fixing the isolation cover body on the head of the patient.
8. The protective shield for use in oral surgical procedures as recited in claim 1, wherein said shield further comprises: at least one object placing component positioned in the isolation cover body and used for placing medical appliances which are not used temporarily, wherein the object placing component is arranged on the left side wall, the right side wall and/or the lower side wall of the face cover.
9. The protective shield for oral surgical procedures as claimed in claim 1, wherein the lower sidewall of the mask is further provided with an instrument delivery port on the right side for use by an assistant.
10. The protective shield for oral surgical procedures as recited in claim 9, wherein the instrument delivery port is further provided with: a movable sealing surface or a movable door or a sleeve used for an instrument transfer port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235617.2U CN210494258U (en) | 2020-02-28 | 2020-02-28 | A protection cage for oral surgery operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235617.2U CN210494258U (en) | 2020-02-28 | 2020-02-28 | A protection cage for oral surgery operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210494258U true CN210494258U (en) | 2020-05-12 |
Family
ID=70575698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020235617.2U Expired - Fee Related CN210494258U (en) | 2020-02-28 | 2020-02-28 | A protection cage for oral surgery operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210494258U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111374786A (en) * | 2020-03-27 | 2020-07-07 | 四川大学 | Negative pressure mouth gag for preventing aerosol from spreading in stomatology department |
| WO2021203185A1 (en) * | 2020-04-09 | 2021-10-14 | Teichert Filho Ruy | Device, system and method for blocking aerosols |
| DE102020114236A1 (en) | 2020-05-27 | 2021-12-02 | Birger Jentzsch | Treatment device, in particular with perioral or extraoral aerosol suction on a treatment chair |
| WO2022098306A1 (en) * | 2020-11-06 | 2022-05-12 | Tan Tock Seng Hospital Pte. Ltd. | Facial cover for a patient undergoing a medical procedure |
| JP7356089B2 (en) | 2020-11-05 | 2023-10-04 | ８０８株式会社 | Medical infection protection equipment |
-
2020
- 2020-02-28 CN CN202020235617.2U patent/CN210494258U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111374786A (en) * | 2020-03-27 | 2020-07-07 | 四川大学 | Negative pressure mouth gag for preventing aerosol from spreading in stomatology department |
| CN111374786B (en) * | 2020-03-27 | 2021-03-30 | 四川大学 | Negative pressure mouth gag for preventing aerosol from spreading in stomatology department |
| WO2021203185A1 (en) * | 2020-04-09 | 2021-10-14 | Teichert Filho Ruy | Device, system and method for blocking aerosols |
| DE102020114236A1 (en) | 2020-05-27 | 2021-12-02 | Birger Jentzsch | Treatment device, in particular with perioral or extraoral aerosol suction on a treatment chair |
| JP7356089B2 (en) | 2020-11-05 | 2023-10-04 | ８０８株式会社 | Medical infection protection equipment |
| WO2022098306A1 (en) * | 2020-11-06 | 2022-05-12 | Tan Tock Seng Hospital Pte. Ltd. | Facial cover for a patient undergoing a medical procedure |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 |