CN217724367U - Medical protection hood of formula circulation air current kills - Google Patents

Abstract

The utility model discloses a killing type circulating airflow medical protective hood, which comprises a hood main body, extension cloth and a ventilation component; the extension cloth is arranged at the lower side of the hood main body, the ventilation assembly is connected with the hood main body through a pipeline, and a gas blocking belt for blocking exhaled water vapor and a pipeline for demisting are arranged in the hood main body; this scheme sets up the defogging structure through the top at the inside front side of hood main part, and the input gas carries out the defogging from the blowout of defogging gas pocket to transparent window board and glasses etc.. Meanwhile, the front side surface in the hood main body is divided into an upper space and a lower space which are relatively independent by arranging the air blocking belt, so that water vapor generated by breathing is prevented from rising to form mist on a window board or glasses. These two points all can effectively prevent to look the condition of window board, glasses etc. hazing when using, promote to use the comfort, guarantee that user's work is not influenced.

Description

Medical protection hood of formula circulation air current kills

Technical Field

The utility model relates to a medical appliance field, in particular to a medical protection hood for killing type circulating airflow.

Background

The medical protective hood is a protective tool which is sleeved on the head of medical staff, has the functions of a mask, an eye-nose mask, a face mask and other products, is used for preventing pathogenic microorganisms from spreading from patients or other people, and has the functions of isolating and preventing infection. The protective hood can protect more tightly and comprehensively, can ensure that a user is prevented from being infected to a greater extent, and can block virus transmission.

However, the totally enclosed protective mask has no ventilation of the air inside when in use, and in order to solve the problem, the medical protective mask can realize the positive pressure air supply function. However, the existing medical protective hood with the positive pressure air supply structure still has some defects and problems in the actual use process.

(1) The traditional positive pressure air supply medical protective hood does not consider the influence of water vapor generated by breathing on a transparent window plate and glasses, and cannot prevent/remove fog on the transparent window plate and the glasses, so that the sight line is influenced, and the normal work of a user is influenced;

(2) The existing positive pressure air supply medical protective hood only utilizes a filtering device to simply filter viruses, particles, spray, blood, body fluid, secretion and the like in the air and then directly sends the filtered viruses, particles, spray, blood, body fluid, secretion and the like into the hood, so that the sterilization and the disinfection are not thorough, the risk still exists, and particularly for high-risk medical environments;

(3) The existing positive pressure air supply medical protective hood only considers the purification of air sent into the hood, does not consider the control and sterilization of exhaled air, easily causes the spread of viruses, pathogenic microorganisms and the like to the air, and easily causes the cross infection among patients and even doctors and patients.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at: aiming at the problems, the medical protection hood with the killing type circulating airflow solves the problems that a fully-closed protection mask in the prior art cannot prevent/remove fog to transparent window plates and glasses of the hood, cannot purify air intake, cannot kill incompletely air exhaust and cannot control exhaled air to kill.

The utility model discloses a realize through following scheme:

a medical protection hood with a killing type circulating airflow comprises a hood main body, extension cloth and a ventilation assembly; the extension cloth sets up in hood main part downside position, the subassembly of taking a breath pass through the pipeline with the hood main part is connected, be provided with in the hood main part and be used for blockking the breathing zone of exhaling steam and the pipeline that is used for the defogging.

Based on the structure of the medical protection hood of formula circulation air current of killing, the hood main part is provided with lacing tape with extension cloth contact site, be provided with transparent window board in the hood main part, the band of breathing freely contacts the setting with transparent window board, the band of breathing freely divide into upper and lower two relatively independent spaces with the inside front face of hood main part.

Based on the structure of the medical protection hood for the extinguishing type circulating airflow, the air blocking belt comprises the air blocking front end portion and the air blocking rear end portion, the air blocking front end portion and the air blocking rear end portion are arranged in an obtuse angle mode, the air blocking front end portion is connected with the lower end portion of the transparent window plate, and the air blocking rear end portion is arranged in contact with the nose bridge when the medical protection hood is used.

Based on above-mentioned structure of medical protection hood of formula of killing circulation air current, hood main part front side lower part space is provided with scattered blast gate and one-way discharge valve, scattered blast gate and one-way discharge valve pass through the pipeline and are connected with the subassembly of taking a breath.

Based on the structure of the medical protection hood with the killing type circulating airflow, the ventilation assembly comprises a power supply part, an air inlet processing part, an exhaust processing part and a shell; the power supply part, the air inlet processing part and the exhaust processing part are arranged in the shell, and cavities for independently arranging the power supply part, the air inlet processing part and the exhaust processing part are respectively arranged in the shell.

Based on the structure of the medical protection hood for the killing type circulating airflow, the power supply part comprises a battery, a circuit board, a charging interface and a charging power supply connecting wire, the air inlet processing part comprises a filtering device, an air pump, a high-temperature/plasma killing device, a condensing device, a water box humidifying device and a current booster, and all the parts in the air inlet processing part are sequentially communicated; the exhaust treatment part comprises an exhaust pump, a filtering device and a high-temperature/plasma killing device, and the exhaust pump, the filtering device and the high-temperature/plasma killing device are sequentially communicated.

Based on the structure of the medical protection hood with the killing type circulating airflow, an air inlet connecting pipe and an air exhaust connecting pipe are arranged between the hood main body and the air exchange assembly; the air inlet connecting pipe is respectively connected with the air inlet processing part and the air dispersing valve in the head cap main body, and the exhaust connecting pipe is respectively connected with the exhaust processing part and the one-way exhaust valve.

Based on the structure of the medical protection hood of formula circulation air current kills, all be provided with trachea quick detach structure on connecting pipe, the exhaust connecting pipe admits air.

Based on above-mentioned structure of medical protection hood of formula of killing circulation air current, the connecting pipe that admits air is provided with branch pipeline in hood main part inside, divide the pipeline to set up along hood main part internal top position, be provided with horizontal gas pipe that looses on the tip of branch pipeline, horizontal gas pipe that looses is close to transparent window board setting, be provided with the defogging gas pocket on the horizontal gas pipe that looses.

Based on the structure of the medical protection hood with the killing type circulating airflow, the ventilation assembly is arranged to be a waistband type or a suspender type.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. this scheme sets up the defogging structure through the top at the inside front side of hood main part, and input gas carries out the defogging from defogging gas pocket blowout, to transparent window board and glasses etc.. Meanwhile, the front side surface in the hood main body is divided into an upper space and a lower space which are relatively independent by arranging the air blocking belt, so that water vapor generated by breathing is prevented from rising to form mist on a window board or glasses. These two points all can prevent effectively looking the condition of luffing such as luffer boards, glasses when using, promote to use the comfort, guarantee that user's work is not influenced.

2. This scheme is passed through filter equipment, high temperature/plasma and is killed settings such as device, condensing equipment, water box, can realize killing with the high efficiency effective filtration of input air, and can guarantee that final input air's temperature, humidity are suitable, have strengthened the protection to the user greatly, have promoted and have used the comfort.

3. According to the scheme, the filtering device, the high-temperature/plasma killing device and the like are arranged, so that the exhaust gas can be controlled to be killed, the possibility that potential viruses, pathogenic microorganisms and the like in the exhaust gas are spread to the air can be effectively reduced, and cross infection between patients/doctors and patients is avoided.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the position of the defogging air holes of the present invention;

FIG. 3 is a schematic view of the quick release structure of the air tube of the present invention;

fig. 4 is a schematic structural view of the gas barrier belt of the present invention;

description of the drawings: 1. a hood body; 2. spreading cloth; 3. a ventilation assembly; 4. a tightening strap; 101. a transparent viewing panel; 102. a gas-barrier front end portion; 103. a gas-blocked rear end portion; 104. a gas barrier zone; 105. a blow-off valve; 106. a one-way exhaust valve; 107. an air inlet connecting pipe; 108. an exhaust connecting pipe; 109. a quick-release structure of the air pipe; 110. distributing pipelines; 111. a transverse air dispersing pipe; 112. demisting air holes; 113. a clamp spring; 114. a seal ring; 301. a power supply section; 302. an intake air processing unit; 303. an exhaust gas treatment unit; 304. a housing.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations where mutually exclusive features are present.

Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", 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 simplicity of description, and do not indicate or imply that the designated device or element 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," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

Example 1

As shown in fig. 1 to 4, the utility model provides a technical solution:

a medical protection hood with a killing type circulating airflow at least comprises a hood main body 1, an extension cloth 2 and a ventilation assembly 3; the extension cloth 2 is arranged at the lower side of the hood body 1, the ventilation component 3 is connected with the hood body 1 through a pipeline, and a gas blocking belt 104 for blocking the steam of the exhaled air and a pipeline for demisting are arranged in the hood body 1.

As an example, a portion of the hood main body 1 in contact with the stretch cloth 2 is provided with a tightening band 4, and in the present embodiment, the tightening band 4 is provided between the bottom end of the hood main body 1 and the top end of the stretch cloth 2. The fastening belt 4 is used for fixing the hood main body 1 and other protection components of a human body, so that the cavity in the hood main body 1 is in a relatively closed state, and the space in the hood main body 1 is isolated from the external space.

As an example, a transparent viewing window plate 101 is provided on the hood body 1, the transparent viewing window plate 101 may be provided at a position in front of the hood body 1, a choke belt 104 is provided in contact with the transparent viewing window plate 101, and the choke belt 104 divides the front side inside the hood body 1 into upper and lower relatively independent spaces.

Based on above-mentioned structure, divide into hood main part 1 inside leading flank into through setting up band 104, two lower relatively independent spaces, when the human body has worn hood main part 1, nose and mouth are in hood main part 1 front side lower part space, eyes, glasses and transparent window board 101 all are in hood main part 11 front side upper portion space, band 104 that hinders can stop the steam that breathes the production and get into front side upper portion space, thereby prevent to breathe steam and lead to the fact the influence to the sight, guaranteed the definition of transparent window board 101 of hood main part 1 when long-time the use.

As an example, the choke belt 104 may include a choke front end portion 102 and a choke rear end portion 103, the choke front end portion 102 and the choke rear end portion 103 are disposed at an angle, the choke front end portion 102 is connected to a lower end portion of the transparent window plate 101, and the choke rear end portion 103 is disposed in contact with the bridge of the nose in use.

Preferably, the gas barrier front end 102 is made of a light barrier material such as a nonwoven fabric, the gas barrier rear end 103 is shaped to fit the contour of the bridge of the nose of a human body, and the gas barrier rear end 103 is made of a flexible material such as medical silicone.

With the above configuration, the front lower space is prevented from directly contacting the transparent window plate 101 by the choke front end portion 102, and thus the generation of water mist is effectively prevented. And tip 103 behind the choked air through the silica gel material makes it can carry out adaptability in a certain extent according to different human different bridge of the nose outlines and adjusts, makes choked air rear end portion 103 and bridge of the nose laminate more, when guaranteeing to wear the travelling comfort, has also avoided steam directly to enter into transparent window board 101 from the bridge of the nose, reduces the production of water smoke.

As an example, the lower space at the front side of the hood main body 1 may be provided with a blow-off valve 105 and a one-way exhaust valve 106, the blow-off valve 105 and the one-way exhaust valve 106 are connected with the ventilation component 3 through a pipeline, the blow-off valve 105 is used for conveying and diffusing fresh air at the mouth and nose, and the one-way exhaust valve is used for one-way exhaust of air inside the hood main body 1.

As an example, the ventilation assembly 3 includes a power supply part 301, an intake air treatment part 302, an exhaust gas treatment part 303, and a housing 304; the power supply unit 301, the intake air treatment unit 302, and the exhaust gas treatment unit 303 are provided in a housing 304, and the housing 304 is provided therein with cavities in which the power supply unit 301, the intake air treatment unit 302, and the exhaust gas treatment unit 303 are independently arranged.

The power supply part 301 may include a battery, a circuit board, a charging interface and a charging power supply connection line, the air inlet processing part 302 may include a filtering device, an air pump, a high temperature/plasma killing device, a condensing device, a water box humidifying device and a current increasing device, and each part of the air inlet processing part 302 is sequentially communicated with each other.

Based on the above structure, the power supply unit 301 supplies power to the intake processing unit 302 and the exhaust processing unit 303, and the operation principle of the intake processing unit 302 is as follows, the intake pump is arranged behind the filtering device, the intake pump operates, and the sucked air passes through the filtering device to primarily filter pathogenic microorganisms in the sucked air. And then, the air pump presses air into the electric heating high-temperature sterilization device/plasma sterilization device to sterilize pathogenic microorganisms in the air path. And then, cooling the gas in the gas path through a condensing device, wherein the process can be circulated for many times, and the final gas temperature is ensured to be about 35 ℃. Finally, after the air enters the water box for humidification, the air is sent into the hood through the flow increasing device through a pipeline for the user to breathe, and the comfort of the user in use is improved.

As an example, the exhaust treatment part 303 may include an exhaust pump, a filter device, and a high temperature/plasma killing device, which are sequentially disposed in communication.

Based on the structure, the exhaust pump can work to generate certain negative pressure when being started, so that the gas in the hood enters the filtering device through the pipeline through the one-way exhaust valve 106. After the filter device preliminarily filters the exhaled air, the air enters the high-temperature/plasma killing device to kill pathogenic microorganisms in the air path, and after killing, the air is directly discharged into the atmosphere, so that the possibility of cross infection among patients and even between doctors and patients is blocked.

As an example, an air inlet connection pipe 107 and an air exhaust connection pipe 108 are provided between the hood body 1 and the ventilation assembly 3; the intake connection pipe 107 is connected to the intake processing unit 302 and the internal blow-off valve 105 of the head cap body 1, and the exhaust connection pipe 108 is connected to the exhaust processing unit 303 and the one-way exhaust valve 106. The air inlet channel and the air outlet channel are separated by independent pipelines, so that the mutual cross infection caused by air is prevented.

As an example, the air inlet connecting pipe 107 and the air outlet connecting pipe 108 are both provided with an air pipe quick-release structure 109, and the air pipe quick-release structure 109 at least comprises a snap pipe, a snap spring 113 and a sealing ring 114; a circlip 113 and a sealing ring 114 are arranged in the circlip tube.

Based on the structure, the pipeline is inserted from the port of the air pipe quick-release structure 109, the clamp spring 113 is jacked open and enters the sealing ring 114, and then the connection is completed. The clamp spring 113 can firmly lock the connecting pipe to prevent falling. The sealing ring 114 can ensure good sealing performance between the quick release structure 109 and the connecting pipe. When the quick-release structure 109 is disassembled, the edge of the port is pressed down, and the edge of the port moves inwards to jack the clamp spring 113, so that the connecting pipe can be pulled out. This trachea quick detach structure 109 can realize the quick assembly disassembly between subassembly 3 and the hood main part 1 of taking a breath, has improved the convenience of use.

The air pipe quick-release structure 109 in the scheme is a common structure in the prior art, and the scheme is only conventional calling in the prior art and is not improved.

As an example, the air inlet connecting pipe 107 is provided with a branch pipe 110 inside the hood main body 1, the branch pipe 110 is arranged along the top position inside the hood main body 1, a transverse air dispersing pipe 111 is arranged on the end part of the branch pipe 110, the transverse air dispersing pipe 111 is arranged close to the transparent window plate 101, and a plurality of defogging air holes 112 are arranged on the transverse air dispersing pipe 111, wherein the defogging air holes 112 are arranged along the length direction of the transverse air dispersing pipe 111 and are uniformly distributed at the lower position of the transverse air dispersing pipe 111.

Based on above-mentioned structure, intake process portion 302 handles the back with the ambient gas and pump into in the hood main part 1, and a pipeline is direct to be close to the nose through the setting of air bleed valve 105, and another branch pipeline 110 carries through the pipeline near transparent window board 101, weathers the steam that probably produces on the transparent window board 101, has further reduced the production of water smoke on the transparent window board 101.

The air inlet connecting pipe 107 is connected with the one-way exhaust valve 106 at the beginning, and under the internal micro-positive pressure environment, the gas in the hood main body 1 is discharged out of the hood through the one-way exhaust valve 106, so that the gas in the hood main body 1 is enabled to circularly flow and be updated, the breathing is smoother, and the gas and the water vapor discharged by the breathing and the eyes can be discharged in time.

As an example, a material having barrier properties may be used for the hood body 1. Disposable materials can be selected as required to reduce potential risks caused by incomplete sterilization. And can also be made of materials which can be repeatedly sterilized, so as to save cost. For disposable use, the material of the head cap body 1 is preferably a medical nonwoven fabric or melt blown fabric having a KN95 grade or higher. When the mask is repeatedly used, the material of the mask main body 1 can be preferably a PET (polyethylene terephthalate) material which is nontoxic, stable in chemical property and easy to obtain, and the PET material has a good blocking effect. The interior wall of the main body 1 of the hood may be considered to be provided with an inner lining, which may be a skin-friendly and flexible material, preferably polystyrene.

As an example, the spread fabric 2 may employ a combination of a multi-layer nonwoven fabric and a meltblown fabric.

Illustratively, the ventilation assembly 3 is provided in a belt-type or a strap-type configuration to distribute a major weight to the shoulders or the waist, thereby avoiding discomfort during long-term wear, reducing the weight of the hood, and reducing the burden on the head. The ventilation component 3 and the back/waist belt need to be wiped outside by medical alcohol with concentration of 75% or be treated by an ozone disinfection cabinet before and after use, and can be used repeatedly.

As an example, the filter device may be easily replaceable. The filtering device can be one or a combination of a plurality of non-woven fabrics, melt-blown fabrics, filter paper and active carbon.

The positive pressure environment in the hood main body 1 can be ensured through the control of the air inlet pump and the air outlet pump. The internal positive pressure environment ensures that air outside the hood does not enter the interior of the hood through other pathways than the inlet treatment component 302. The exhaust pump forms a relatively negative pressure environment in the exhaust treatment part 303, and accelerates the exhaust of the gas in the hood main body 1. The air circulating flow in the hood is ensured under the synergistic action of the air inlet pump and the air exhaust pump.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims (10)

1. The utility model provides a medical protection hood of formula of killing circulation air current which characterized in that: comprises a head cover main body, extension cloth and a ventilation component; the extension cloth is arranged at the lower side of the hood body, the ventilation assembly is connected with the hood body through a pipeline, and a gas blocking belt for blocking the exhaled water vapor and a pipeline for demisting are arranged in the hood body.

2. A kill-type, recirculating airstream medical protective hood as recited in claim 1, wherein: the helmet main part is provided with the lacing tape with extension cloth contact site, be provided with transparent window board in the helmet main part, the band of hindering qi sets up with transparent window board contact, the band of hindering qi divide into two upper and lower relatively independent spaces with the inside front side of helmet main part.

3. A kill-type recirculating airstream medical protective hood as claimed in claim 2, wherein: the choke belt includes a choke front end portion and a choke rear end portion, the choke front end portion and the choke rear end portion are arranged at an obtuse angle, the choke front end portion is connected to the lower end portion of the transparent window panel, and the choke rear end portion is arranged to contact the bridge of the nose when in use.

4. A kill-type, recirculating airstream medical protective hood as recited in claim 3, wherein: the space of the lower part of the front side of the hood main body is provided with a wind dispersing valve and a one-way exhaust valve, and the wind dispersing valve and the one-way exhaust valve are connected with the ventilation assembly through pipelines.

5. The kill-type circulating airflow medical protective hood of claim 4, wherein: the ventilation assembly comprises a power supply component, an air inlet treatment part, an exhaust treatment part and a shell; the power supply component, the air inlet processing part and the exhaust processing part are all arranged in the shell, and cavities for independently arranging the power supply component, the air inlet processing part and the exhaust processing part are respectively arranged in the shell.

6. The kill-type circulating airflow medical protective hood of claim 5, wherein: the power supply part comprises a battery, a circuit board, a charging interface and a charging power supply connecting wire, the air inlet processing part comprises a filtering device, an air pump, a high-temperature/plasma killing device, a condensing device, a water box humidifying device and a current increaser, and all the parts in the air inlet processing part are sequentially communicated; the exhaust treatment part comprises an exhaust pump, a filtering device and a high-temperature/plasma killing device, and the exhaust pump, the filtering device and the high-temperature/plasma killing device are sequentially communicated.

7. A kill-type, recirculating airstream medical protective hood as recited in claim 6, wherein: an air inlet connecting pipe and an air exhaust connecting pipe are arranged between the hood main body and the air exchange assembly; the air inlet connecting pipe is respectively connected with the air inlet processing part and the air dispersing valve in the hood main body, and the exhaust connecting pipe is respectively connected with the exhaust processing part and the one-way exhaust valve.

8. A kill-type recirculating airstream medical protective hood as claimed in claim 7, wherein: and the air inlet connecting pipe and the air exhaust connecting pipe are both provided with air pipe quick-release structures.

9. A kill-type recirculating airstream medical protective hood as claimed in claim 8, wherein: the air inlet connecting pipe is arranged in the hood main body and is divided into pipelines, the pipelines are arranged along the top in the hood main body, a transverse air diffusing pipe is arranged at the end of each pipeline and is close to the transparent window plate, and demisting air holes are formed in the transverse air diffusing pipe.

10. A kill-type recirculating airstream medical protective hood as claimed in claim 9, wherein: the ventilation component is arranged in a belt type or a strap type.

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