CN110897641A - Vital capacity tester - Google Patents
Vital capacity tester Download PDFInfo
- Publication number
- CN110897641A CN110897641A CN201911298907.XA CN201911298907A CN110897641A CN 110897641 A CN110897641 A CN 110897641A CN 201911298907 A CN201911298907 A CN 201911298907A CN 110897641 A CN110897641 A CN 110897641A
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- measuring cylinder
- base
- side wall
- fixedly connected
- volume
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
- A61B5/093—Measuring volume of inspired or expired gases, e.g. to determine lung capacity the gases being exhaled into, or inhaled from, an expansible chamber, e.g. bellows or expansible bag
- A61B5/095—Measuring volume of inspired or expired gases, e.g. to determine lung capacity the gases being exhaled into, or inhaled from, an expansible chamber, e.g. bellows or expansible bag within a rigid container, e.g. the boundary being formed by a liquid surface
Abstract
The invention discloses a vital capacity tester which comprises a base, wherein a measuring cylinder is fixedly connected to the base, scale stripes are arranged on the outer side wall of the measuring cylinder, a piston is connected in the measuring cylinder in a sliding mode, and a pressure balancing device is arranged at one end, far away from the base, of the measuring cylinder. The invention evenly divides the air blown out by the user, collects one of the air flows and measures the volume of the air flow, and the total volume of the air blown out by the user is equivalent to the volume of the air blown out by the user, so the volume of a container for measuring the volume is greatly reduced, the carrying and the transportation are convenient, the value is read according to the scale of the measuring cylinder and the position of the piston, and then the scaling ratio is multiplied, the lung capacity of the user can be obtained, the error is small, the use is not influenced, in addition, the whole tester does not need power supply, the use site is not limited by a power supply, and the cost is greatly reduced.
Description
Technical Field
The invention relates to the technical field of vital capacity testing, in particular to a vital capacity tester.
Background
The vital capacity refers to the volume of the breath that is exhausted after the maximum inspiration, and is influenced by factors such as age, sex, stature, respiratory muscle strength, lung and thoracic elasticity, and the like, with large individual differences. Generally, the stronger the body, the greater the vital capacity, and studies have shown that it is highly correlated with the maximum oxygen uptake, and thus is often used as an index for evaluating the physical quality as well as the height, weight, and the like.
The existing spirometry testers can be roughly divided into two types, namely an electronic spirometry tester for measuring by using a sensor and a simple spirometry tester for measuring the volume of blown gas, wherein the measuring result of the electronic spirometry tester is accurate but the cost is relatively high and power supply is needed, so that the use site is limited by the power supply, and the use site of the simple spirometry tester is not limited by the cost, but the normal spirometry of adults is about 3500ml, and the larger spirometry of some adults can even reach 4000 plus 5000ml, so that a volume measuring container needs to be very large and is inconvenient to carry and transport.
Therefore, in order to solve the above problems, we propose a spirometer herein.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: the existing spirometry testers can be roughly divided into two types, namely an electronic spirometry tester for measuring by using a sensor and a simple spirometry tester for measuring the volume of blown gas, wherein the measuring result of the electronic spirometry tester is accurate but the cost is relatively high and power supply is needed, so that the use site is limited by the power supply, and the use site of the simple spirometry tester is not limited by the cost, but the normal spirometry of adults is about 3500ml, and the larger spirometry of some adults can even reach 4000 plus 5000ml, so that a volume measuring container needs to be very large and is inconvenient to carry and transport.
In order to achieve the purpose, the invention adopts the following technical scheme:
the spirometric capacity tester comprises a base, a measuring cylinder is fixedly connected to the base, scale stripes are arranged on the outer side wall of the measuring cylinder, a piston is connected in the measuring cylinder in a sliding manner, a pressure balancing device is arranged at one end, far away from the base, of the measuring cylinder, two connecting pipes extending into the measuring cylinder are symmetrically arranged on the outer side wall of one end, close to the base, of the measuring cylinder, a catheter is arranged in one of the connecting pipes, a grab handle is arranged at one end, far away from the connecting pipes, of the catheter, a cavity is arranged in the grab handle, a jack is arranged in one end, far away from the catheter, of the grab handle, a blowing nozzle is inserted in the jack, a plurality of through holes are formed in one end, far away from the blowing nozzle, of the grab handle, check valves are arranged in the plurality of through holes, a mounting pipe is fixedly connected to one side, and a pressure reducing ball is arranged at one end of the other connecting pipe, which is far away from the measuring cylinder.
Preferably, the pressure balance device comprises a balance pipe, the balance pipe is fixedly connected to a side wall of the measuring cylinder far away from the base, a plurality of air holes are symmetrically formed in the outer side wall of the balance pipe, and one end of the balance pipe far away from the measuring cylinder is fixedly connected with a baffle.
Preferably, the inner side wall of the cavity is fixedly connected with a flow gathering block, the center of the flow gathering block is provided with a flow gathering hole, and the side walls of two ends of the flow gathering block are both in inclined converging shape.
Preferably, a handle is fixedly connected to the outer side wall of the grab handle.
Preferably, the outer side wall of the piston is coated with red paint.
The invention has the beneficial effects that:
1. the gas that blows out the user evenly shunts, then collect one of them air current and carry out the volume measurement to it, because the gas total volume that the user blew out is equivalent to being scaled, consequently the container volume of measurement volume can reduce by a wide margin, thereby conveniently carry and transport, read out the numerical value according to the position of graduated flask scale and piston, then multiply and scale the ratio, can obtain user's vital capacity size, although the measuring result has the error, the error is very little, do not influence the use, in addition, whole tester does not need power supply, consequently, the use place is not restricted by the power supply, and the cost has obtained reduction by a wide margin.
2. Along with the increase of the through-hole quantity that sets up, in certain measuring range, the volume of required graduated flask can reduce gradually, thereby make the volume of this device can reduce along with the increase of the through-hole quantity that sets up, thereby portable, although measuring error also can increase along with the increase of the through-hole quantity that sets up, but judge that one person's lung is healthy generally mainly to see thousand and hundred numerical values according to vital capacity, the unit and ten numerical values of vital capacity test result do not have actual representative meaning, consequently, the change of error range on unit and ten can be ignored, make the user can independently select, the volume is big more, measuring accuracy is just higher, the volume is little, portable more, thereby can fully satisfy user's needs.
Drawings
Fig. 1 is a schematic front structural view of a spirometer according to the present invention;
fig. 2 is a sectional view showing an internal structure of the spirometer according to the present invention;
FIG. 3 is a schematic view of a flow-focusing block structure of the spirometer according to the present invention;
fig. 4 is a schematic diagram of a distribution structure of one-way valves of the spirometer according to the present invention.
In the figure: the device comprises a base 1, a measuring cylinder 2, a piston 3, a balance tube 4, vent holes 5, a baffle 6, a connecting tube 7, a guide tube 8, a grab handle 9, a cavity 10, a jack 11, a blowing nozzle 12, a flow gathering block 13, a flow gathering hole 14, a check valve 15, a mounting tube 16, a handle 17 and a pressure reducing ball 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-4, the vital capacity tester, including base 1, fixedly connected with graduated flask 2 on the base 1, be equipped with the scale stripe on the lateral wall of graduated flask 2, sliding connection has piston 3 in the graduated flask 2, scribble red coating on the lateral wall of piston 3, red more obvious, thereby can promote the accuracy of reading, and made things convenient for the reading, graduated flask 2 keeps away from one of base 1 and serves and be equipped with pressure balance device, pressure balance device includes balance tube 4, balance tube 4 fixed connection is on a lateral wall that base 1 was kept away from to graduated flask 2, the symmetry is equipped with a plurality of bleeder vents 5 on balance tube 4's the lateral wall.
One of the end of graduated flask 2 is kept away from to balance pipe 4 is served fixedly connected with baffle 6, with the help of balance pipe 4 and bleeder vent 5, make the air pressure of 3 tops of piston keep level with the external world all the time, baffle 6's setting can be avoided having the foreign matter to fall into bleeder vent 5 and then get into graduated flask 2 in, graduated flask 2 is close to on the lateral wall of base 1 one end the symmetry be equipped with two connecting pipes 7 that extend into graduated flask 2, be equipped with pipe 8 in one of them connecting pipe 7, pipe 8 is kept away from one of connecting pipe 7 and is served and be equipped with grab handle 9, be equipped with cavity 10 in the grab handle 9, grab handle 9 is kept away.
There is the blow gun 12 in the jack 11 interpolation, one of blow gun 12 is kept away from to grab handle 9 serves and is equipped with a plurality of through-holes, all be equipped with check valve 15 in a plurality of through-holes, fixedly connected with gathers stream block 13 on the inside wall of cavity 10, the center department of gathering stream block 13 is equipped with gathers flow hole 14, the both ends lateral wall that gathers stream block 13 all is the convergence form setting of slope, with the help of gathering stream block 13 and gather flow hole 14, the air current that blows out to the user on the basis of blow gun 12 carries out further gathering redispersion, thereby make the stranded air current that passes through check valve 15 in a plurality of through-holes even, avoid the too fast phenomenon of air current velocity to appear in certain direction, with the gas that blows out to the user evenly shunts, thereby promote measuring accuracy nature.
That is, if the total volume of the gas blown out by the user is X and the number of the through holes is Y, the flow rate of the gas flowing through each check valve 15 is X/Y, which is equivalent to dividing X into Y parts for scaling, the gas flowing through one check valve 15 is collected to measure the volume, and the volume is multiplied by the scaling ratio Y/X according to the value, so that the value of X can be obtained.
For example, the minimum scale of the measuring cylinder 2 is 1ml, the total volume of the measuring cylinder 2 is 1L, and the number Y of the through holes is 5, so that the range of the measured lung capacity is 0-5000ml, and the error range is 0-5 ml.
A mounting tube 16 is fixedly connected to one side wall of the cavity 10 far away from the blowing nozzle 12, the mounting tube 16 is opposite to one-way valve 15, the one-way valve 15 is inserted into the mounting tube 16, one of the divided air flows is sent into the guide tube 8 by using the mounting tube 16 and then collected in the measuring cylinder 2, the piston 3 slides upwards under the air pressure jacking until the air blowing of a user is finished, then the corresponding scale value of the position of the piston 3 is read, and the vital capacity is calculated according to the scaling ratio.
Fixedly connected with handle 17 on the lateral wall of grab handle 9, another connecting pipe 7 is kept away from one of graduated flask 2 and is served and be equipped with decompression ball 18, decompression ball 18 is reequiped by medical pressurization ball and obtains, specifically is installed according to the opposite direction of former installation direction with two valves in the pressurization ball, like this, because the valve direction changes, when consequently repeatedly holding pressure decompression ball 18, just can take out the air of collecting in the graduated flask 2, piston 3 resets to carry out new round of measurement.
Example 2
Referring to fig. 1-4, the vital capacity tester, including base 1, fixedly connected with graduated flask 2 on the base 1, be equipped with the scale stripe on the lateral wall of graduated flask 2, sliding connection has piston 3 in the graduated flask 2, scribble red coating on the lateral wall of piston 3, red more obvious, thereby can promote the accuracy of reading, and made things convenient for the reading, graduated flask 2 keeps away from one of base 1 and serves and be equipped with pressure balance device, pressure balance device includes balance tube 4, balance tube 4 fixed connection is on a lateral wall that base 1 was kept away from to graduated flask 2, the symmetry is equipped with a plurality of bleeder vents 5 on balance tube 4's the lateral wall.
One of the end of graduated flask 2 is kept away from to balance pipe 4 is served fixedly connected with baffle 6, with the help of balance pipe 4 and bleeder vent 5, make the air pressure of 3 tops of piston keep level with the external world all the time, baffle 6's setting can be avoided having the foreign matter to fall into bleeder vent 5 and then get into graduated flask 2 in, graduated flask 2 is close to on the lateral wall of base 1 one end the symmetry be equipped with two connecting pipes 7 that extend into graduated flask 2, be equipped with pipe 8 in one of them connecting pipe 7, pipe 8 is kept away from one of connecting pipe 7 and is served and be equipped with grab handle 9, be equipped with cavity 10 in the grab handle 9, grab handle 9 is kept away.
There is the blow gun 12 in the jack 11 interpolation, one of blow gun 12 is kept away from to grab handle 9 serves and is equipped with a plurality of through-holes, all be equipped with check valve 15 in a plurality of through-holes, fixedly connected with gathers stream block 13 on the inside wall of cavity 10, the center department of gathering stream block 13 is equipped with gathers flow hole 14, the both ends lateral wall that gathers stream block 13 all is the convergence form setting of slope, with the help of gathering stream block 13 and gather flow hole 14, the air current that blows out to the user on the basis of blow gun 12 carries out further gathering redispersion, thereby make the stranded air current that passes through check valve 15 in a plurality of through-holes even, avoid the too fast phenomenon of air current velocity to appear in certain direction, with the gas that blows out to the user evenly shunts, thereby promote measuring accuracy nature.
That is, if the total volume of the gas blown out by the user is X and the number of the through holes is Y, the flow rate of the gas flowing through each check valve 15 is X/Y, which is equivalent to dividing X into Y parts for scaling, the gas flowing through one check valve 15 is collected to measure the volume, and the volume is multiplied by the scaling ratio Y/X according to the value, so that the value of X can be obtained.
For example, the measurement range is also controlled to be 0-5000ml, a measuring cylinder 2 with the minimum scale of 1ml is still selected, the number Y of the through holes is set to be 10, the required volume of the measuring cylinder 2 is only 0.5L, and the measurement error is 0-10ml, so that it can be seen that, in the same measurement range, along with the increase of the number of the through holes, the volume of the required measuring cylinder 2 is gradually reduced, that is, the volume of the device is reduced, so that a user can more conveniently carry the vital capacity tester, the corresponding error is increased, but generally, the vital capacity judgment of one person generally mainly looks at thousands and hundreds of values, and the ones and tens values of the vital capacity test result have no practical significance, so the tester has errors, but is completely applicable.
A mounting tube 16 is fixedly connected to one side wall of the cavity 10 far away from the blowing nozzle 12, the mounting tube 16 is opposite to one-way valve 15, the one-way valve 15 is inserted into the mounting tube 16, one of the divided air flows is sent into the guide tube 8 by using the mounting tube 16 and then collected in the measuring cylinder 2, the piston 3 slides upwards under the air pressure jacking until the air blowing of a user is finished, then the corresponding scale value of the position of the piston 3 is read, and the vital capacity is calculated according to the scaling ratio.
Fixedly connected with handle 17 on the lateral wall of grab handle 9, another connecting pipe 7 is kept away from one of graduated flask 2 and is served and be equipped with decompression ball 18, decompression ball 18 is reequiped by medical pressurization ball and obtains, specifically is installed according to the opposite direction of former installation direction with two valves in the pressurization ball, like this, because the valve direction changes, when consequently repeatedly holding pressure decompression ball 18, just can take out the air of collecting in the graduated flask 2, piston 3 resets to carry out new round of measurement.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The spirometry tester comprises a base (1) and is characterized in that a measuring cylinder (2) is fixedly connected onto the base (1), scale stripes are arranged on the outer side wall of the measuring cylinder (2), a piston (3) is connected into the measuring cylinder (2) in a sliding manner, a pressure balancing device is arranged at one end, far away from the base (1), of the measuring cylinder (2), two connecting pipes (7) extending into the measuring cylinder (2) are symmetrically arranged on the outer side wall, close to one end of the base (1), of the measuring cylinder (2), a conduit (8) is arranged in one of the connecting pipes (7), a grab handle (9) is arranged at one end, far away from the connecting pipe (7), of the conduit (8), a cavity (10) is arranged in the grab handle (9), a jack (11) is arranged in one end, far away from the conduit (8), a blowing nozzle (12) is inserted in the jack (11), one of grab handle (9) is kept away from blow gun (12) is served and is equipped with a plurality of through-holes, and is a plurality of all be equipped with check valve (15) in the through-hole, fixedly connected with installation pipe (16) on the lateral wall of blow gun (12) is kept away from in cavity (10), installation pipe (16) just set up one of them check valve (15), peg graft in installation pipe (16) check valve (15), another one of them serves and is equipped with decompression ball (18) connecting pipe (7) one of keeping away from graduated flask (2).
2. The spirometer according to claim 1, wherein the pressure balancing device comprises a balancing tube (4), the balancing tube (4) is fixedly connected to a side wall of the measuring cylinder (2) far away from the base (1), a plurality of air holes (5) are symmetrically formed in an outer side wall of the balancing tube (4), and a baffle (6) is fixedly connected to one end of the balancing tube (4) far away from the measuring cylinder (2).
3. The spirometer according to claim 1, characterized in that a flow gathering block (13) is fixedly connected to the inner side wall of the cavity (10), a flow gathering hole (14) is formed in the center of the flow gathering block (13), and the side walls of the two ends of the flow gathering block (13) are arranged in an inclined converging manner.
4. The spirometer according to claim 1, characterised in that a handle (17) is fixedly connected to the outer side wall of said grip (9).
5. The spirometer according to claim 1, characterised in that the outer side wall of said piston (3) is coated with a red paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911298907.XA CN110897641A (en) | 2019-12-17 | 2019-12-17 | Vital capacity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911298907.XA CN110897641A (en) | 2019-12-17 | 2019-12-17 | Vital capacity tester |
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|---|---|
| CN110897641A true CN110897641A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911298907.XA Pending CN110897641A (en) | 2019-12-17 | 2019-12-17 | Vital capacity tester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759309A (en) * | 2020-07-09 | 2020-10-13 | 深圳市则成电子股份有限公司 | Portable vital capacity tester |
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|---|---|---|---|---|
| US20040254491A1 (en) * | 2003-06-13 | 2004-12-16 | Cardiopulmonary Technologies, Inc. | Gas flow diverter for respiratory monitoring device |
| CN202051705U (en) * | 2011-03-26 | 2011-11-30 | 曹晓春 | Vital capacity detector |
| CN202875333U (en) * | 2012-10-29 | 2013-04-17 | 孔爱华 | Float type spirometer |
| CN203576504U (en) * | 2013-09-30 | 2014-05-07 | 嘉兴市欣欣仪器设备有限公司 | Lung capacity measurer |
| US20140224251A1 (en) * | 2013-02-13 | 2014-08-14 | Jessica Meyers | Spirometer device with visual aid for therapeutic breathing |
| CN104287736A (en) * | 2014-10-28 | 2015-01-21 | 无锡快邦医疗科技有限公司 | Vital capacity measurer |
| CN104337521A (en) * | 2014-08-27 | 2015-02-11 | 上海理工大学 | Totalizing flowmeter and operating method |
| CN204293158U (en) * | 2014-12-11 | 2015-04-29 | 杨峰 | A kind of New pattern chest surgery spirometric device |
| CN204562164U (en) * | 2015-04-27 | 2015-08-19 | 尹华 | Simple and easy tub vital capacity tester |
-
2019
- 2019-12-17 CN CN201911298907.XA patent/CN110897641A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040254491A1 (en) * | 2003-06-13 | 2004-12-16 | Cardiopulmonary Technologies, Inc. | Gas flow diverter for respiratory monitoring device |
| CN202051705U (en) * | 2011-03-26 | 2011-11-30 | 曹晓春 | Vital capacity detector |
| CN202875333U (en) * | 2012-10-29 | 2013-04-17 | 孔爱华 | Float type spirometer |
| US20140224251A1 (en) * | 2013-02-13 | 2014-08-14 | Jessica Meyers | Spirometer device with visual aid for therapeutic breathing |
| CN203576504U (en) * | 2013-09-30 | 2014-05-07 | 嘉兴市欣欣仪器设备有限公司 | Lung capacity measurer |
| CN104337521A (en) * | 2014-08-27 | 2015-02-11 | 上海理工大学 | Totalizing flowmeter and operating method |
| CN104287736A (en) * | 2014-10-28 | 2015-01-21 | 无锡快邦医疗科技有限公司 | Vital capacity measurer |
| CN204293158U (en) * | 2014-12-11 | 2015-04-29 | 杨峰 | A kind of New pattern chest surgery spirometric device |
| CN204562164U (en) * | 2015-04-27 | 2015-08-19 | 尹华 | Simple and easy tub vital capacity tester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759309A (en) * | 2020-07-09 | 2020-10-13 | 深圳市则成电子股份有限公司 | Portable vital capacity tester |
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Application publication date: 20200324 |