Expiratory gas collecting device

Abstract

The utility model discloses an exhaled air collecting device which comprises an air collecting tank, a tap joint, an exhaled air mechanism installed at the upper end of the tap joint and an air guiding mechanism installed at the upper end of the air collecting tank, one end of a butt joint pipe is connected with a connector, a sealing ball is installed at the edge of one end of a one-way valve, and a two-way pipe is installed at one end of the connector. The other two ends of the two-way pipe are connected with hoses, one end of one hose is provided with a nasal tube, and one end of the other hose is connected with a breathing mask; when expired gas is collected, two different expiration devices are connected through the tap, the two expiration modes of nose expiration and mouth expiration can be collected at a time, the expiration devices do not need to be replaced in the midway, and the breathing gas is sealed and blocked in different directions through the gas guide mechanism, so that the expiration gas can be collected in different directions. Therefore, the gas collected in the collecting tank cannot be lost when a user inspires autonomously, the gas collecting efficiency is improved, and the use cost of exhaled gas collection is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of exhalation detection, specifically to an exhalation collection device. BACKGROUND

[0002] Endogenous compounds in human exhaled breath, including inorganic gases (such as NO and CO), VOCs (such as isoprene, ethane, pentane, acetone) and the like are metabolic products of human tissues, and through analysis and concentration detection of endogenous marker components, relevant information of human tissue metabolism and health status can be obtained non-invasively, which is helpful to clarify corresponding physiological processes, disease occurrence, disease development and pharmacological response and the like, and when detecting whether human exhaled gas is abnormal, the exhaled gas needs to be diluted and detected, and such an exhalation collection device plays a very important role in detection.

[0003] The existing exhalation collection device mainly has two collection methods when collecting exhaled gas, one is nasal exhalation and the other is oral exhalation, in order to improve the detection effect, the gas content of the two exhalation methods needs to be detected, but the ordinary exhalation collection device needs to replace different exhalation pipelines in the middle to alternately connect the nasal cavity and the oral cavity on the human body when collecting exhaled gas of the two exhalation methods, and then the exhaled gas is collected, which is very troublesome to operate, and the cost of exhalation collection is also relatively increased, and at the same time, some people may actively inhale due to uncontrollable control during collection, which affects the exhalation collection amount, therefore, the design scheme provides an exhalation collection device. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an exhalation collection device to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an exhalation collection device, which comprises a gas collecting tank, a tap and an exhalation mechanism and a gas guiding mechanism respectively installed at the upper end of the tap and the upper end of the gas collecting tank.

[0006] The exhalation mechanism comprises a butt joint pipe screw-connected at one end of the tap, a connecting head connected to one end of the butt joint pipe, through holes respectively formed at both sides of one end of the connecting head, a one-way valve installed at one side of the connecting head, a sealing ball installed at the edge of one end of the one-way valve, a double-pass pipe installed at one end of the connecting head, and the inner walls of one end of the double-pass pipe are in communication with the inner walls of the two through holes, and soft pipes are connected to the other two ends of the double-pass pipe, one end of one of the soft pipes is installed with a nasal pipe, the outer walls of both ends of the nasal pipe are sleeved with sealing plugs, and one end of the other soft pipe is connected with a breathing mask.

[0007] In one example, the air guide mechanism comprises a connecting pipe installed on the top of the gas collecting tank, and the tap is installed on the top of the gas collecting tank through the connecting pipe.

[0008] In one example, one side of the top of the tap is connected with an air inlet pipe, the inner wall of the connecting pipe and the inner wall of the air inlet pipe are provided with air inlet grooves, and the middle positions of the upper edges of the inner walls of the two air inlet grooves are fixedly provided with sealing strips.

[0009] In one example, the upper edges of one side of the inner walls of the two air inlet grooves are hingedly provided with sealing flaps, the inner walls of the two ends of the four sealing flaps are fixedly provided with torsional springs, and the outer walls of one ends of the eight torsional springs are fixedly connected with the inner walls of the two sides of the two air inlet grooves.

[0010] In one example, the upper edge of the inner wall of the air inlet pipe is fixedly provided with filter cotton, and the lower edge of one side of the gas collecting tank is provided with an air outlet pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: when collecting exhaled air, two different exhaled air devices are connected through the tap, the two exhaled air modes of nasal exhalation and oral exhalation can be collected at one time, the exhaled air device does not need to be replaced in the middle, and the breathing gas is sealed and blocked in different directions through the air guide mechanism, so that the collected gas in the collecting tank does not flow away when the user inhales involuntarily, the gas collection efficiency is improved, and the use cost of the exhaled air collection is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structural schematic view of the utility model;

[0013] Figure 2 It is the structural schematic view of the exhaled air mechanism of the utility model;

[0014] Figure 3 It is the structural schematic view of the inside of the connecting head of the utility model;

[0015] Figure 4 It is the structural schematic view of the inside of the connecting head of the utility model; Figure 2 It is the structural schematic view of the inside of the connecting head of the utility model;

[0016] Figure 5 It is the structural schematic view of the air guide mechanism of the utility model;

[0017] Figure 6 It is the structural schematic view of the inside of the connecting head of the utility model;

[0018] Figure 7 It is the structural schematic view of the inside of the connecting head of the utility model; Figure 6 It is the structural schematic view of the inside of the connecting head of the utility model;

[0019] In the figure: 1, gas collecting tank; 2, tap; 3, exhalation mechanism; 301, butt joint pipe; 302, connecting head; 303, through hole; 304, one-way valve; 305, sealing ball; 306, double-way pipe; 307, hose; 308, nasal tube; 309, sealing plug; 310, breathing mask; 4, air guiding mechanism; 401, connecting pipe; 402, air inlet pipe; 403, air inlet groove; 404, sealing strip; 405, sealing sheet; 406, torsion spring; 5, filter cotton; 6, air outlet pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-7 The present application provides a technical solution: an exhalation collecting device, comprising a gas collecting tank 1, a tap 2, an exhalation mechanism 3 installed on the upper end of the tap 2, and an air guiding mechanism 4 installed on the upper end of the gas collecting tank 1.

[0022] The exhalation mechanism 3 comprises a butt joint pipe 301 threadedly connected to one end of the tap 2, the butt joint pipe 301 being connected with a connecting head 302 at one end, two through holes 303 being formed on both sides of one end of the connecting head 302, a one-way valve 304 being installed on one side of the connecting head 302, a sealing ball 305 being installed at the edge of one end of the one-way valve 304, a double-way pipe 306 being installed at one end of the connecting head 302, the inner wall of one end of the double-way pipe 306 being in communication with the inner walls of the two through holes 303, two hoses 307 being connected to the other two ends of the double-way pipe 306, one end of one of the two hoses 307 being installed with a nasal tube 308, the outer walls of both ends of the nasal tube 308 being sleeved with sealing plugs 309, and one end of the other hose 307 being connected with a breathing mask 310.

[0023] In use, by connecting the adapter pipe 301 with one end of the tap 2, the whole exhalation mechanism is connected with the collecting device. When collecting exhaled breath, the nose pipe 308 is inserted into the user's nasal cavity, and the sealing plug 309 on the outer wall can realize tight adhesion to the inside of the nasal cavity after insertion, thereby sealing to prevent air leakage. The breathing mask 310 is normally worn, and then the one-way valve 304 at the upper end of the connector 302 is rotated to make the sealing ball 305 at the upper end thereof be rotated and blocked in the through hole 303 communicating with the breathing mask 310, thereby sealing. At this time, the exhaled gas of the breathing mask 310 cannot enter the connector 302, and only the exhaled gas of the nasal cavity can be guided into the connector 302, and then into the tap 2 through the adapter pipe 301, and finally into the gas collecting tank 1 through the tap 2 for collection and discharge through the exhaust pipe 6 for detection. After the nasal cavity exhalation collection is completed, the one-way valve 304 is rotated in the opposite direction to make the sealing ball 305 at the upper end thereof be rotated and blocked in the other through hole 303, at this time, the exhaled gas of the nasal cavity cannot enter the connector 302, and the exhaled gas of the breathing mask 310 normally enters the connector 302 and then enters the gas collecting tank 1 for discharge for detection. During the collection process, different exhalation devices do not need to be replaced, and the exhaled gas of two exhalation modes can be collected at one time, thereby improving the collection efficiency and reducing the use cost of exhalation collection.

[0024] Further, the air guide mechanism 4 includes a connecting pipe 401 inserted and installed at the top of the gas collecting tank 1, and the tap 2 is installed at the top of the gas collecting tank 1 through the connecting pipe 401, and the tap 2 is connected with the gas collecting tank 1 through the connecting pipe 401 and communicates with the inside of the gas collecting tank 1 through the connecting pipe 401.

[0025] Further, the tap 2 is connected with an air inlet pipe 402 at one side of the top thereof, and the inner wall of the connecting pipe 401 and the inner wall of the air inlet pipe 402 are both provided with air inlet grooves 403, and the middle positions of the upper edges of the inner walls of the two air inlet grooves 403 are both fixedly provided with sealing strips 404.

[0026] The upper edges of one side of the inner walls of the two air inlet grooves 403 are both hingedly connected with sealing lamellas 405, the inner walls of the two ends of the four sealing lamellas 405 are both fixedly provided with torsional springs 406, and the outer walls of one ends of the eight torsional springs 406 are respectively fixedly connected with the inner walls of the two sides of the two air inlet grooves 403.

[0027] In the gas collecting process, the user's exhaled breath can normally pass through the connector 302 and the connecting pipe 301 into the sub-connector 2, and blow into the gas inlet groove 403 in the connecting pipe 401, which will impact the sealing sheet 405 and make it rotate to open the gas inlet groove 403, so that the exhaled gas can normally enter the gas collecting tank 1 for collection. The exhaled gas entering the gas inlet pipe 402 cannot open the gas inlet groove 403 in the gas inlet pipe 402 because the rotating direction of the sealing sheet 405 is opposite to the direction of gas flow, so that the exhaled gas is not easily lost and is fully collected in the gas collecting tank 1. When the user inhales involuntarily, the sealing sheet 405 in the gas inlet pipe 402 is pressed and rotated by the external air pressure drop due to the decrease of internal pressure, which opens the gas inlet groove 403 in the gas inlet pipe 402, so that air enters and is inhaled by the user. The rotating direction of the sealing sheet 405 in the connecting pipe 401 at this time is consistent with the pressure difference direction, and it cannot be opened due to the limiting of the sealing strip 404, so that the gas collected in the gas collecting tank 1 cannot be sucked out, which does not affect the normal gas collection in the whole gas collection process, improves the gas collection quality, and the sealing sheet 405 is pressed and rotated. When the user does not breathe, the sealing sheet 405 is rotated and contacted with the sealing strip 404 under the action of the torsional spring 406, so as to keep the two gas inlet grooves 403 in a sealed state;

[0028] Further, the upper edge of the inner wall of the gas inlet pipe 402 is fixedly provided with filter cotton 5, and the lower edge of one side of the gas collecting tank 1 is provided with an exhaust pipe 6. Before the external air is inhaled, it passes through the filter cotton 5 for filtration, so that the inhaled gas of the user is clean and sanitary.

Claims

1. An exhaled breath collection device, comprising a gas collecting tank (1), a tap (2), and an exhaled breath mechanism (3) mounted on the upper end of the tap (2) and an air guide mechanism (4) mounted on the upper end of the gas collecting tank (1); Its characteristics are: The exhalation mechanism (3) comprises a butt joint (301) threadedly connected to one end of the tap (2), one end of the butt joint (301) being connected to a connector (302), both sides of one end of the connector (302) being provided with through holes (303), one side of the connector (302) being provided with a one-way valve (304), an edge of one end of the one-way valve (304) being provided with a sealing ball (305), one end of the connector (302) being provided with a two-way tube (306), and the inner wall of one end of the two-way tube (306) being respectively communicated with the inner walls of the two through holes (303), the other two ends of the two-way tube (306) being connected to hoses (307), one end of one of the hoses (307) being provided with a nasal tube (308), the outer walls of both ends of the nasal tube (308) being provided with sealing plugs (309), and one end of the other hose (307) being provided with a breathing mask (310).

2. The breath collection device according to claim 1, characterized in that: The gas guide mechanism (4) comprises a connecting pipe (401) installed through the top of the gas collecting tank (1), and the tap (2) is installed on the top of the gas collecting tank (1) through the connecting pipe (401).

3. The breath collection device according to claim 2, characterized in that: An air intake pipe (402) is inserted and connected to one side of the top of the tap (2), and an air intake groove (403) is provided on the inner wall of the connecting pipe (401) and the inner wall of the air intake pipe (402), and a sealing strip (404) is fixedly provided at the middle position of the upper edge of the inner wall of the two air intake grooves (403).

4. The breath collection device according to claim 3, characterized in that: A sealing sheet (405) is hinged at the upper edge of one side of the inner wall of the two air inlet grooves (403), and a torsion spring (406) is fixedly provided on the inner wall at both ends of the four sealing sheets (405), and the outer wall of one end of the eight torsion springs (406) is fixedly connected to the inner wall at both sides of the two air inlet grooves (403).

5. The breath collection device according to claim 4, characterized in that: A filter cotton (5) is fixedly provided at the upper edge of the inner wall of the air inlet pipe (402), and an exhaust pipe (6) is inserted through the lower edge of one side of the air collecting tank (1).

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