CN211697813U - A adapter that is used for end carbon dioxide of exhaling of wearing formula to detect - Google Patents
A adapter that is used for end carbon dioxide of exhaling of wearing formula to detect Download PDFInfo
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- CN211697813U CN211697813U CN202020056282.8U CN202020056282U CN211697813U CN 211697813 U CN211697813 U CN 211697813U CN 202020056282 U CN202020056282 U CN 202020056282U CN 211697813 U CN211697813 U CN 211697813U
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- carbon dioxide
- drying tube
- adapter
- drying
- inner shell
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Abstract
The utility model discloses an adapter that is used for end carbon dioxide detection is breathed of wearing formula. It comprises a drying agent storage structure, an air path structure, a sealing cover, a detector chamber and an air outlet. The desiccant storage structure comprises two types, namely the center of the air path or the periphery of the air path, a proper ventilation structure is arranged on the wall of the desiccant storage structure, and the maximum distance of the gap is smaller than that of the desiccant. The gas path structure is a gas path selected during direct expiration, and can be a linear gas path structure and a shunt gas path structure. The sealing cover is designed according to the selection of the desiccant storage structure, and can seal the desiccant in the structure. The detector chamber has a specific sealed volume, and the two sides of the detector chamber are provided with circular hole-shaped structures so that the carbon dioxide detection sensor can detect the content of carbon dioxide. The air outlet is of a cubic structure, and air flows out from two sides. The utility model discloses can be used for daily family expenses, enlarged the application range who exhales last carbon dioxide detector, can carry out the drying to the gas through the adapter simultaneously, improve the interference killing feature who exhales last carbon dioxide measuring probe, obtain higher measurement accuracy.
Description
Technical Field
The utility model relates to an adapter that is used for end carbon dioxide of exhaling of wearing formula to detect belongs to physiological signal detection and medical instrument and equipment field.
Background
The respiratory function is one of the life functions of human body, and the condition of the lung function is generally known clinically by arterial blood-gas analysis (PaCO2) and end-tidal carbon dioxide partial pressure (PETCO 2). While PETCO2 has been considered as the sixth basic vital sign, in addition to body temperature, respiration, pulse, blood pressure, arterial oxygen saturation, the American Society of Anesthesiologists (ASA) has specified PETCO2 as one of the basic monitoring indicators during anesthesia.
Because of the cost and few manufacturers in China, the better technology for monitoring the end-tidal carbon dioxide of the patient to perform medical auxiliary diagnosis and ensure medical safety is limited in use, the detection content is not taken as the conventional monitoring content in China clinically, and the method is not widely applied to parameters such as electrocardio, blood oxygen, noninvasive blood pressure and the like. Therefore, in order to popularize the end-tidal carbon dioxide monitoring technology and reduce the use cost, the development of a light, portable and cheap wearable end-tidal carbon dioxide monitor is urgently needed, and the benefits of the majority of domestic patients are brought.
For the wearable end-expiratory carbon dioxide monitor, the wearable end-expiratory carbon dioxide adapter is more important because the direct breathing gas can cause great water-gas interference in the gas exchange of the human body in the lung, the anti-interference capability of the measuring probe can be improved, and higher measuring precision can be obtained.
Disclosure of Invention
The utility model aims at providing an adapter that is used for wearing formula exhale last carbon dioxide and detects can be used for daily family, has enlarged the application range who exhales last carbon dioxide detector, can carry out the drying to the gas through the adapter simultaneously, improves the interference killing feature who exhales last carbon dioxide measuring probe, obtains higher measurement accuracy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an adapter for wearable end-tidal carbon dioxide detection comprises a drying tube and a detection probe adapting device;
the drying tube comprises a drying tube outer shell and a drying tube inner shell which are nested in a double-layer mode, the drying tube outer shell and the drying tube inner shell are both hollow tubular shells, and the drying tube outer shell and the drying tube inner shell are fixed through fixing pieces and keep a distance, so that an annular drying agent storage cavity is formed; the bottom of the inner shell of the drying tube is sealed, the side wall of the inner shell of the drying tube is provided with a plurality of through holes, and the through holes are communicated with the inner cavity of the inner shell of the drying tube and the drying agent storage cavity;
the top end of the drying agent storage cavity is plugged through an annular sealing cover, and an air inlet through hole is formed in the sealing cover; the air inlet through hole and the inner cavity of the inner shell of the drying tube are communicated with the air inlet at the top end of the drying tube, the bottom end of the drying tube is sealed in a ventilation mode through a pore plate, and the bottom end of the drying tube is connected with a detection probe adapter device of the detector for detecting the final carbon dioxide through a gas collecting neck and an adapter ring in sequence.
Preferably, the detection probe adapter device comprises a detector chamber and an air outlet channel, wherein an air flow channel is arranged in the detector chamber, one end of the air flow channel is communicated with the adapter ring, the other end of the air flow channel is communicated with the air outlet channel, and a detection hole is formed in a flow path of the air flow channel and used for inserting the probe of the detector for detecting the end-tidal carbon dioxide.
Furthermore, a buckle is arranged on the detector chamber and used for assembling a probe of the detector for detecting the expired carbon dioxide.
Preferably, the top end of the drying tube shell is recessed relative to the top end of the drying tube shell, and the air inlet is located in the recessed area.
Preferably, the outer drying tube shell and the inner drying tube shell are both in a hollow round tube shape and are coaxially arranged.
Preferably, the fixing pieces are a plurality of supporting columns which are circumferentially distributed in the drying agent storage cavity.
Preferably, the gas collecting neck is in a shape of a circular truncated cone, and the cross section of the gas collecting neck is gradually reduced from the connecting end of the drying tube to the connecting section of the detection probe adapter device.
Preferably, the pore plate is fixed at the bottom of the outer shell of the drying tube, and a distance is kept between the bottom of the inner shell of the drying tube and the pore plate.
Preferably, the pores surrounding all of the structures forming the desiccant storage chamber are no larger than the particle size of the internal desiccant.
Preferably, the openings on the inner shell of the drying tube and the sealing cover are uniformly distributed on the ventilation surface.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a set up coaxial nested double-deck casing to place the drier in between the double-deck casing, changed the route of original gas circuit, increased with the contact surface area of drier and strengthened the drying effect who exhales last carbon dioxide adapter, improve the anti steam interference ability of exhaling last carbon dioxide measuring probe simultaneously, what make the rear end exhale last carbon dioxide measuring probe can obtain higher measurement accuracy.
(2) The utility model discloses enlarged the application range who exhales last carbon dioxide detector, enlarged daily wearing formula from clinical monitoring device and exhale last carbon dioxide detection.
Drawings
FIG. 1 is a cross-sectional view of an adapter for a wearable end-tidal carbon dioxide detection of the present invention;
FIG. 2 is another cross-sectional view (perpendicular to the cross-sectional view of FIG. 1) of the adapter of the present invention for use in a wearable end-tidal carbon dioxide detection;
FIG. 3 is a schematic view of the gas flow direction inside the adapter;
fig. 4 is a perspective view of the adapter for wearable end-tidal carbon dioxide detection of the present invention;
reference numbers in the figures: the device comprises an air inlet 1, a drying tube outer shell 2, a sealing cover 3, a fixing piece 4, an air collecting neck 5, an adapting ring 6, a detector chamber 7, a detection hole 7a, a buckle 7b, an air outlet channel 8, a drying tube inner shell 9, a drying agent storage cavity 10 and a pore plate 11.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses a in a preferred embodiment, an adapter for end carbon dioxide detection is exhaled of wearing formula is provided, the major structure of this adapter can be divided into including drying tube and test probe adapter device two parts, and wherein the drying tube is used for going on the drying to admitting air, and test probe adapter device is used for assembling with the probe of the end carbon dioxide detector exhales of rear end, makes the probe can acquire the dry back and waits to detect the air current.
As shown in fig. 1 and 2, the drying tube comprises a drying tube outer shell 2 and a drying tube inner shell 9 which are nested in a double-layer manner, and both the drying tube outer shell 2 and the drying tube inner shell 9 are hollow tubular shells which are fixed and kept at intervals by a fixing piece 4, and a space formed by the two shells is clamped to be used as an annular drying agent storage cavity 10. In the device, the bottom (namely the upper end in fig. 1) of the inner drying tube shell 9 is sealed, a plurality of through holes are uniformly formed in the side wall, and the through holes are communicated with the inner cavity of the inner drying tube shell 9 and the drying agent storage cavity 10. In addition, the top end of the inner drying tube housing 9 is recessed at a distance from the top end of the outer drying tube housing 2, in which recessed area the air inlet 1 of the entire adapter is located. The top end of the drying agent storage cavity 10 is plugged through an annular sealing cover 3, and air inlet through holes are uniformly formed in the sealing cover 3. The air inlet through hole in the sealing cover 3 and the inner cavity of the inner shell 9 of the drying tube are both communicated with the air inlet 1 at the top end of the drying tube, so that air flow entering from the air inlet 1 can be divided into two paths, one path enters the drying agent storage cavity 10 through the air inlet through hole in the sealing cover 3, and the other path enters the drying agent storage cavity 10 through the through hole in the inner shell 9 of the drying tube. The function of the through holes on the inner shell 9 of the drying tube is to provide a larger air inlet surface area for the desiccant storage chamber 10, so as to reduce the air flow resistance and improve the contact area and drying effect of the desiccant.
The sealing cover 3 and the pore plate 11 are matched with the drying agent storage cavity 10 and are responsible for fixing the drying agent in the drying agent storage cavity 10, so that the drying agent can not move greatly and is not spilled to cause danger. Meanwhile, in order to prevent the desiccant from being blown out, the pores surrounding all the structures forming the desiccant storage chamber 10 are not larger than the particle size of the internal desiccant. The desiccant storage cavity 10 is in a ring column structure, is coaxial with the drying pipe, and is provided with a ventilation structure on a gas passing path to block the desiccant and pass gas.
In addition, the bottom end of the drying tube is sealed in a ventilation mode through a pore plate 11, and is connected with a detection probe adapter device of the detector for detecting the carbon dioxide at the end of expiration through a gas collecting neck 5 and an adapter ring 6 in sequence.
In the present exemplary embodiment, the drying tube outer shell 2 and the drying tube inner shell 9 are each in the form of a hollow round tube, which are arranged coaxially, whereby the drying agent storage chamber 10 is also annular. Meanwhile, in order to maximize the air outlet area of the desiccant storage cavity 10, the pore plate 11 is fixed at the bottom of the drying tube outer shell 2, a space is kept between the bottom of the drying tube inner shell 9 and the pore plate 11, and the space area is also filled with desiccant. The openings in the inner shell 9 of the drying duct and the sealing cover 3 are evenly distributed over the ventilation surface to further reduce the ventilation resistance.
In this embodiment, the fixing member 4 is 3 support columns, and is circumferentially distributed in the drying agent storage cavity 10, so that the occupied space is reduced as much as possible while the structural stability is ensured.
In the present exemplary embodiment, the gas collecting neck 5 is in the form of a circular truncated cone, the cross section of which tapers from the drying tube connection end to the detection probe adapter connection section. Therefore, the structural space in the drying tube can be designed to be larger, and the dried gas only needs to form airflow through the collecting neck, so that the gas path and the contact area are enlarged, and the gas drying effect and the smaller breathing resistance are ensured.
In addition, the specific form of the detection probe adapter device can be determined according to the structure of the carbon dioxide detector which needs to be assembled. In one embodiment, the detection probe adapter device comprises a detector chamber 7 and an air outlet channel 8, an air flow channel is arranged in the detector chamber 7, one end of the air flow channel is communicated with the adapter ring 6, the other end of the air flow channel is communicated with the air outlet channel 8, and a detection hole 7a is formed in a flow path of the air flow channel and used for inserting a probe of the detector for detecting the carbon dioxide at the end of breath. Meanwhile, a buckle 7b can be arranged on the detector chamber 7 and used for assembling a probe of the detector for detecting the expired carbon dioxide.
The last terminal outlet passage 8 is the cube structure, makes it expand to daily wearing formula exhale end carbon dioxide and detect the use from clinical monitoring device.
As shown in fig. 3, the airflow paths in the adapter are: the air enters from the air inlet 1, enters the drying agent storage cavity 10 through the straight line air path structure and the shunt air path in two paths to be contacted with the drying agent, is discharged through the pore plate 11, is collected to the detector chamber 7 through the truncated cone-shaped air collecting neck 5, and finally flows out from two sides of the air outlet, so that the adapter can be used for daily wearing, and the air path on the surface of the skin is smooth.
The adapter is to be assembled in a form shown in fig. 4, and the end-expiratory carbon dioxide detection probe is clamped in from one side of the buckle 7 b. Therefore, the utility model discloses enlarged the application range who exhales last carbon dioxide detector, it breathes last carbon dioxide detection to expand daily wearing formula from clinical monitoring device. Meanwhile, the path of the original gas circuit is changed, the contact surface area with the drying agent is increased, the drying effect of the exhaling carbon dioxide adapter is enhanced, the steam interference resistance of the exhaling carbon dioxide measuring probe is improved, and higher measuring precision is obtained.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. An adapter for wearable breath end carbon dioxide detection, characterized in that: comprises a drying tube and a detection probe adapter device;
the drying tube comprises a drying tube outer shell (2) and a drying tube inner shell (9) which are nested in a double-layer mode, the drying tube outer shell (2) and the drying tube inner shell (9) are both hollow tubular shells, and the drying tube outer shell and the drying tube inner shell are fixed through a fixing piece (4) and keep a distance, so that an annular drying agent storage cavity (10) is formed; the bottom of the drying tube inner shell (9) is sealed, the side wall of the drying tube inner shell is provided with a plurality of through holes, and the through holes are communicated with the inner cavity of the drying tube inner shell (9) and the drying agent storage cavity (10);
the top end of the drying agent storage cavity (10) is plugged through an annular sealing cover (3), and an air inlet through hole is formed in the sealing cover (3); the air inlet through hole and the inner cavity of the drying tube inner shell (9) are communicated with the air inlet (1) at the top end of the drying tube, the bottom end of the drying tube is sealed in a ventilation mode through a pore plate (11), and the bottom end of the drying tube is connected with a detection probe adapting device of the detector for detecting the final carbon dioxide through a gas collecting neck (5) and an adapting ring (6) in sequence.
2. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the detection probe adapter device comprises a detector chamber (7) and an air outlet channel (8), wherein an air flow channel is arranged in the detector chamber (7), one end of the air flow channel is communicated with an adapter ring (6), the other end of the air flow channel is communicated with the air outlet channel (8), and a detection hole (7a) is formed in the flow path of the air flow channel and used for inserting a probe of the detector for detecting the final carbon dioxide.
3. The adapter for wearable end-tidal carbon dioxide detection according to claim 2, wherein: and a buckle (7b) is arranged on the detector chamber (7) and is used for assembling a probe of the detector for detecting the carbon dioxide at the end of expiration.
4. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the top end of the drying tube inner shell (9) is sunken relative to the top end of the drying tube outer shell (2), and the air inlet (1) is located in the sunken area.
5. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the drying tube outer shell (2) and the drying tube inner shell (9) are both in a hollow round tube shape and are coaxially arranged.
6. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the fixing piece (4) is a plurality of supporting columns which are circumferentially distributed in the drying agent storage cavity (10).
7. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the gas collecting neck (5) is in a circular truncated cone shape, and the cross section of the gas collecting neck is gradually reduced from the connecting end of the drying tube to the connecting section of the detection probe adapting device.
8. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the pore plate (11) is fixed at the bottom of the drying tube outer shell (2), and a distance is kept between the bottom of the drying tube inner shell (9) and the pore plate (11).
9. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the pores surrounding all the structures forming the desiccant storage chamber (10) are not larger than the particle size of the internal desiccant.
10. The adapter for wearable end-tidal carbon dioxide detection according to claim 1, wherein: the openings on the inner shell (9) of the drying tube and the sealing cover (3) are uniformly distributed on the ventilation surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020056282.8U CN211697813U (en) | 2020-01-10 | 2020-01-10 | A adapter that is used for end carbon dioxide of exhaling of wearing formula to detect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020056282.8U CN211697813U (en) | 2020-01-10 | 2020-01-10 | A adapter that is used for end carbon dioxide of exhaling of wearing formula to detect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211697813U true CN211697813U (en) | 2020-10-16 |
Family
ID=72800645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020056282.8U Expired - Fee Related CN211697813U (en) | 2020-01-10 | 2020-01-10 | A adapter that is used for end carbon dioxide of exhaling of wearing formula to detect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211697813U (en) |
-
2020
- 2020-01-10 CN CN202020056282.8U patent/CN211697813U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310058 Yuhang Tang Road, Xihu District, Hangzhou, Zhejiang 866 Patentee after: ZHEJIANG University Patentee after: Honghe innovation and Technology Research Institute Co.,Ltd. Address before: 310058 Yuhang Tang Road, Xihu District, Hangzhou, Zhejiang 866 Patentee before: ZHEJIANG University Patentee before: HONGHE INNOVATION TECHNOLOGY Research Institute |
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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: 20201016 Termination date: 20220110 |