CN208910262U - Filter structure, handle chassis and breathing detection handle - Google Patents
Filter structure, handle chassis and breathing detection handle Download PDFInfo
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- CN208910262U CN208910262U CN201821020019.2U CN201821020019U CN208910262U CN 208910262 U CN208910262 U CN 208910262U CN 201821020019 U CN201821020019 U CN 201821020019U CN 208910262 U CN208910262 U CN 208910262U
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Abstract
The utility model discloses a kind of filter structure, handle chassis and breathing detection handles, filter structure includes including filter core, filter core is equipped with first passage and second channel, nitric oxide absorbent and the first check valve are successively arranged in first passage, first check valve is the first side close to the side of nitric oxide absorbent, side of first check valve far from nitric oxide absorbent is second side, the ventilation direction of first check valve is the direction by the first side to second side, desiccant is equipped in second channel, second channel with tracheae for being connected to.Above-mentioned filter structure, is mountable in pipeline, then when by pipeline far from tracheae one end air-breathing when, air can enter first passage, and the nitric oxide in nitric oxide absorbent draw air is entered internal by the first check valve；When expiration, due to the blocking of the first check valve, intracorporal gas enters second channel, and enters tracheae by the drying of desiccant, and the precision of the nitric oxide concentration of measurement characteristics of contaminated respiratory droplets can be improved.
Description
Technical field
The utility model relates to technical field of medical equipment, more particularly to a kind of filter structure, handle chassis and breathing
Detect handle.
Background technique
The nitric oxide of characteristics of contaminated respiratory droplets is that arginine aoxidizes under the action of nitric oxide synthetase in airway cells
What deamination generated.Therefore nitric oxide production generation depends primarily on nitric oxide synthetase.According to molecule and biocytology
Studies have shown that inflammatory factor, especially anaphylactogen can promote the activity of nitric oxide synthetase, lead to an oxidation of characteristics of contaminated respiratory droplets
The concentration of nitrogen rises；And after drug anti-inflammatory, nitric oxide concentration decline.Therefore it can pass through the nitric oxide of measurement characteristics of contaminated respiratory droplets
Concentration the respiratory disorders such as asthma are diagnosed and are treated with evaluation, but since there are a certain amount of in the air of human body sucking
Nitric oxide can impact the nitric oxide production precision of measurement characteristics of contaminated respiratory droplets.
Summary of the invention
Based on this, the utility model lies in that overcoming the deficiencies of the prior art and provide a kind of expiratory measurements precision of can be improved
Filter structure, handle chassis and breathing detection handle.
Its technical solution is as follows:
A kind of filter structure, including filter core, the filter core is equipped with first passage and second channel, in the first passage
It is successively arranged nitric oxide absorbent and the first check valve, first check valve is close to the side of the nitric oxide absorbent
For the first side, side of first check valve far from the nitric oxide absorbent is second side, first check valve
Direction ventilate as by first side to the direction of described second side, the second channel is interior to be equipped with desiccant, and described second is logical
Road with tracheae for being connected to.
Above-mentioned filter structure, is mountable in pipeline, and second channel is connected to tracheae, then first passage and at this time
Two channels are mutually independent two channels by gas, when by pipeline far from tracheae one end air-breathing when, due to second logical
Road is connected to tracheae, and the ventilation direction of the first check valve is by aoxidizing close to the first side of nitric oxide absorbent to far from one
The direction of second side of nitrogen absorbent, then air can enter first passage, and by nitric oxide absorbent draw air
After nitric oxide, entered by the first check valve internal；When then exhaling, due to the blocking of the first check valve, intracorporal gas
Into second channel, and enter tracheae after the drying of desiccant, at this time using nitric oxide measuring instrument in tracheae
Gas measure.It, will not be to exhalation since during air enters intracorporal, the nitric oxide in air is absorbed
Nitric oxide production measurement of concetration in gas interferes, and check valve can stop the gas of exhalation, prevents exhalation
Nitric oxide in gas is absorbed by nitric oxide absorbent, while desiccant can inhale the moisture etc. in the gas of exhalation
It receives, prevents the measurement accuracy to nitric oxide measuring instrument from impacting.Therefore above-mentioned filter structure can be improved measurement human body and exhale
The precision of nitric oxide concentration out.
Further, above-mentioned filter structure further includes the second one-way valve in the first passage, and described first is single
The two sides of the nitric oxide absorbent, the second one-way valve and described first are respectively arranged on to valve and the second one-way valve
The ventilation direction of check valve is identical.
Further, the filter core includes main body, first end cover and second end cover, the main body be equipped with the first via hole and
Second via hole, the first end cover and the second end cover are covered on the both ends of the main body respectively, set in the first end cover
There are the first opening and the second opening, the second end cover is equipped with third and is open and the 4th opening, first opening, described the
One via hole and the third open communication form the first passage, and first opening is matched with first check valve, institute
It states third opening to match with the second one-way valve, second opening, second via hole and the 4th open communication shape
At the second channel.
Further, the first passage is at least two, and first passage described in two of them is respectively arranged on described second
The two sides in channel；Or the first passage is arranged around the second channel.
A kind of handle chassis, including handle casing and filter structure as described in any one of the above embodiments, in the handle casing
It is equipped with venthole equipped with the bottom surface with the matched mounting groove of the filter core, the mounting groove, the second channel is for passing through
The venthole is connected to tracheae, and the nitric oxide absorbent is set to first check valve close to the one of the venthole
Side, the handle casing are equipped with the inlet channel being connected to the first passage.
Above-mentioned handle chassis, can by the notch air-breathing of mounting groove, since second channel is connected to tracheae, at this time air by
Inlet channel enters in first passage, and after absorbing by nitric oxide absorbent the nitric oxide in air, into internal,
When then exhaling, the gas of the first non-return valve blocks exhalation makes the gas of exhalation enter second channel, and by the dry of desiccant
It is dry, entered in nitric oxide measuring instrument by tracheae, at this time since the nitric oxide in breathing process in air is absorbed, together
When exhalation process in there is no moisture etc. to influence an oxygen in nitric oxide in the gas that the breathes out gas that does not scatter and disappear, and breathe out
Change the impurity of nitrogen measuring instrument, it is ensured that more accurate to the measurement of nitric oxide concentration.
Further, the filter core is equipped with the intubation being connected to the second channel close to the end face of the venthole,
It is described intubation include the first pipeline section being connected to the second channel and with matched second pipeline section of the venthole, described first
The outer diameter of pipeline section is greater than the outer diameter of second pipeline section.
A kind of breathing detection handle, including blow gun and handle chassis as described in any one of the above embodiments, the blow gun are detachable
It is installed at the notch of the mounting groove, the blow gun is equipped with respiration channel, the respiration channel and the first passage, institute
Stating second channel can be connected to.
Above-mentioned breathing detection handle can be carried out in air-breathing and exhalation process by blow gun, and by the effect of filter structure,
Raising is accurate to the measurement of nitric oxide concentration in the gas of exhalation, while blow gun is detachably connected with handle casing, and convenient pair
Blow gun is replaced, it is ensured that the wholesomeness used.
Further, above-mentioned breathing detection handle further includes mounting base, and the mounting base is set to the filter core and blows with described
Between mouth, the mounting base be equipped with the matched lug boss of the respiration channel, the mounting base is close to the side of the blow gun
Face is equipped with annular outer plate, and the grafting space for blow gun insertion is formed between the annular outer plate and the lug boss.
Further, bacteriological filter layer is equipped in the respiration channel.
Detailed description of the invention
Fig. 1 is the cross-sectional view of breathing detection handle described in the utility model embodiment；
Fig. 2 is the enlarged diagram in Fig. 1 at A.
Description of symbols:
100, filter core, 110, nitric oxide absorbent, the 120, first check valve, 130, desiccant, 140, second one-way valve,
150, main body, 160, first end cover, 170, second end cover, 180, intubation, 200, handle casing, 210, inlet channel, 300, blow
Mouth, 310, respiration channel, 320, bacteriological filter layer, 330, contact pin, 400, mounting base, 410, lug boss, 420, annular outer plate,
10, tracheae.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this
The disclosure of type understands more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" packet
Include any and all combinations of one or more related listed items.
" first " described in the utility model, " second " do not represent specific quantity and sequence, are only used for title
It distinguishes.
In this specific embodiment, nitric oxide absorbent 110 is set, but not according to test object in above-mentioned first passage
Together, other also settable gas absorbents in above-mentioned first passage.
In this specific embodiment, desiccant 130 is set, but according to the difference of test request in above-mentioned second channel, it is above-mentioned
Other also settable reagents in channel.
As shown in Figure 1, an embodiment discloses a kind of filter structure, including filter core 100, it is logical that filter core 100 is equipped with first
Road and second channel are successively arranged nitric oxide absorbent 110 and the first check valve 120, the first check valve 120 in first passage
It is the first side, the first side of the check valve 120 far from nitric oxide absorbent 110 close to the side of nitric oxide absorbent 110
For second side, the ventilation direction of the first check valve 120 is the direction by the first side to second side, is equipped with desiccant in second channel
130, second channel with tracheae 10 for being connected to.
Above-mentioned filter structure, is mountable in pipeline, and second channel is connected to tracheae 10, then at this time first passage with
Second channel is mutually independent two channels by gas, when by pipeline far from tracheae 10 one end air-breathing when, due to the
Two channels are connected to tracheae 10, and the ventilation direction of the first check valve 120 is by close to the first side of nitric oxide absorbent 110
To the direction of second side far from nitric oxide absorbent 110, then air can enter first passage, and absorb by nitric oxide
After nitric oxide in 110 draw air of agent, entered by the first check valve 120 internal；When then exhaling, unidirectionally due to first
The blocking of valve 120, intracorporal gas enter second channel, and enter tracheae 10 after the drying of desiccant 130, at this time can benefit
The gas in tracheae is measured with nitric oxide measuring instrument.Due to during air enters intracorporal, in air
Nitric oxide is absorbed, and will not be interfered to the nitric oxide production measurement of concetration in the gas of exhalation, and check valve can be to exhaling
Gas out is stopped, and prevents the nitric oxide in the gas of exhalation from being absorbed by nitric oxide absorbent 110, while desiccant
130 can absorb the moisture etc. in the gas of exhalation, prevent the measurement accuracy to nitric oxide measuring instrument from impacting.
Therefore the precision of the nitric oxide concentration of measurement characteristics of contaminated respiratory droplets can be improved in above-mentioned filter structure.
Specifically, first passage and second channel are arranged in parallel or less parallel is arranged.
Specifically, filter core 100 is column, and first passage and second channel are arranged along the length direction of filter core 100.
Further, as shown in Figure 1, above-mentioned filter structure further includes the second one-way valve 140 in first passage, the
One check valve 120 is respectively arranged on the two sides of nitric oxide absorbent 110, second one-way valve 140 and first with second one-way valve 140
The ventilation direction of check valve 120 is identical.It can prevent nitric oxide absorbent 110 from absorbing the oxygen in air when not in use at this time
Change nitrogen, the assimilation effect including nitric oxide absorbent 110.
Further, as shown in Figure 1, filter core 100 includes main body 150, first end cover 160 and second end cover 170, main body
150 are equipped with the first via hole and the second via hole, and first end cover 160 and second end cover 170 are covered on the both ends of main body 150 respectively,
First end cover 160 is equipped with the first opening and the second opening, and second end cover 170 is open equipped with third and the 4th opening, and first
Opening, the first via hole and third open communication form first passage, and the first opening is matched with the first check valve 120, third opening
It is matched with second one-way valve 140, the second opening, the second via hole and the 4th open communication form second channel.Nitric oxide at this time
Absorbent 110 can be set in the first via hole, and desiccant 130 can be set in the second via hole, then main body 150 is mainly used for passing through
Gas is filtered, and first end cover 160, second end cover 170 cover the both ends for setting main body 150 respectively, can by main body 150 into
Row replacement, realizes the replacement to nitric oxide absorbent 110 and desiccant 130.
In other embodiments, filter core 100 can also be structure as a whole.
Further, first passage at least two, two of them first passage are respectively arranged on the two sides of second channel；Or
First passage is arranged around second channel.Air can be increased at this time into intracorporal channel, fill the middle nitric oxide of air more
That divides is absorbed by nitric oxide absorbent 110, and the subsequent measurement accuracy to nitric oxide concentration in exhaled gas can be improved.
Optionally, first passage being provided at circumferentially spaced along second channel；Or first passage is the ring around second channel
Shape channel.
As shown in Figure 1, an embodiment discloses a kind of handle chassis, including handle casing 200 and such as above-mentioned filtering knot
Structure, interior be equipped with of handle casing 200 are equipped with venthole with the matched mounting groove of filter core 100, the bottom surface of mounting groove, and second channel is used
Be connected in by venthole with tracheae 10, nitric oxide absorbent 110 set on the first check valve 120 close to the side of venthole,
Handle casing 200 is equipped with the inlet channel 210 being connected to first passage.
Above-mentioned handle chassis, can be by the notch air-breathing of mounting groove, since second channel is connected to tracheae 10, air at this time
By inlet channel 210 enter first passage in, and by nitric oxide absorbent 110 absorb air in nitric oxide after,
Into internal, when then exhaling, the first check valve 120 stops the gas of exhalation, so that the gas of exhalation is entered second channel, and pass through
The drying for crossing desiccant 130 is entered in nitric oxide measuring instrument by tracheae 10, at this time due in breathing process in air
Nitric oxide is absorbed, while the nitric oxide in the gas breathed out in exhalation process does not scatter and disappear, and in the gas breathed out not
There are the impurity that moisture etc. influences nitric oxide measuring instrument, it is ensured that more accurate to the measurement of nitric oxide concentration.
In addition, can replace according to service condition to filter core 100, guarantee the filter effect to sucking or exhaled gas.
In other embodiments, handle chassis can also be structure as a whole with filter core 100.
Optionally, handle casing 200 is cylindrical shape.It can facilitate at this time and handle casing 200 is held.
Further, as shown in Figure 1, filter core 100 is equipped with the intubation being connected with the second channel close to the end face of venthole
180, intubation 180 include the first pipeline section for being connected with the second channel and with matched second pipeline section of venthole, the first pipeline section it is outer
Diameter is greater than the outer diameter of the second pipeline section.The second pipeline section can be inserted into venthole at this time, while the outer diameter of the first pipeline section is greater than the second pipe
The outer diameter of section facilitates installation positioning when filter core 100 to be packed into mounting groove, while filter core 100 can be prevented too close to mounting groove
Bottom surface.
Optionally, intubation 180 is structure as a whole with first end cover 160.
As shown in Figure 1, an embodiment discloses a kind of breathing detection handle, including blow gun 300 and such as above-mentioned handle base
Seat, blow gun 300 is removably mounted at the notch of mounting groove, and blow gun 300 is equipped with respiration channel 310, respiration channel 310 and the
One channel, second channel can be connected to.
Above-mentioned breathing detection handle can be carried out in air-breathing and exhalation process by blow gun 300, and the work for passing through filter structure
With raising is accurate to the measurement of nitric oxide concentration in the gas of exhalation, while blow gun 300 detachably connects with handle casing 200
It connects, it is convenient that blow gun 300 is replaced, it is ensured that the wholesomeness used.
It optionally, is step structure at the notch of mounting groove, and the cascaded surface of above-mentioned step structure is equipped with jack,
Blow gun 300 is equipped with and the matched contact pin 330 of jack.Blow gun 300 and the installation of handle chassis are more stable at this time.
Further, as shown in Figures 1 and 2, above-mentioned breathing detection handle further includes mounting base 400, and mounting base 400 is set to
Between filter core 100 and blow gun 300, mounting base 400 is equipped with to be leaned on the matched lug boss 410 of respiration channel 310, mounting base 400
The side of nearly blow gun 300 is equipped with annular outer plate 420, is formed between annular outer plate 420 and lug boss 410 and is inserted into for blow gun 300
Grafting space.Blow gun 300 is inserted into grafting space at this time, is limited in grafting sky at the cooperation of blow gun 300 and mounting base 400
In, gas leakage effect test effect can be prevented.
Optionally, lug boss 410 surrounds groove far from the side of blow gun 300, and main body 150 is close to the first check valve 120
One end is equipped with the protruding portion for partially protruding into groove, and one end of second channel is located in protruding portion.It is logical for dry second at this time
The distance in road is longer, can adequately be dried to the gas of exhalation.
Optionally, as shown in Figure 1, the outer diameter at 300 middle part of blow gun is greater than the outer diameter at 300 both ends of blow gun.At this time blow gun 300 with
When handle chassis cooperates, it can be used for limiting in the middle part of blow gun 300, while one end outer diameter of the blow gun 300 far from handle chassis is smaller,
Personnel can be easy to use to contain blow gun 300.
Further, as shown in Figure 1, being equipped with bacteriological filter layer 320 in respiration channel 310.It at this time can be to air and exhalation
Gas in bacterium be filtered, prevent bacterium from breeding in filter core 100 or handle casing 200, while prevented also from bacterium
Into in nitric oxide measuring instrument, the measurement to nitric oxide concentration is influenced.
Specifically, bacteriological filter layer 320 is set to 300 middle part of blow gun.The area of bacteriological filter layer 320 is larger at this time, can fill
Divide and is contacted with air or the gas of exhalation, it is more preferable to the filter effect of bacterium.
Above-mentioned breathing detection handle can cooperate with nitric oxide measuring instrument, wherein have in nitric oxide measuring instrument
Tracheae 10, tracheae 10 are used to convey gas to be detected to nitric oxide measuring instrument, and tracheae 10 passes through venthole and second channel
Connection.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of filter structure, which is characterized in that including filter core, the filter core is equipped with first passage and second channel, described
Nitric oxide absorbent and the first check valve are successively arranged in first passage, first check valve is inhaled close to the nitric oxide
The side for receiving agent is the first side, and side of first check valve far from the nitric oxide absorbent is second side, described the
The ventilation direction of one check valve is that the second channel is interior to be equipped with desiccant by first side to the direction of described second side,
The second channel with tracheae for being connected to.
2. filter structure according to claim 1, which is characterized in that further include the second list in the first passage
To valve, first check valve and the second one-way valve are respectively arranged on the two sides of the nitric oxide absorbent, and described second
Check valve is identical as the ventilation direction of first check valve.
3. filter structure according to claim 2, which is characterized in that the filter core includes main body, first end cover and second
End cap, the main body are equipped with the first via hole and the second via hole, and the first end cover and the second end cover are covered on institute respectively
The both ends of main body are stated, the first end cover is equipped with the first opening and the second opening, the second end cover are open equipped with third
And the 4th opening, first opening, first via hole and the third open communication form the first passage, described the
One opening is matched with first check valve, and the third opening is matched with the second one-way valve, and described second is open, is described
Second via hole and the 4th open communication form the second channel.
4. filter structure according to claim 1-3, which is characterized in that the first passage is at least two,
First passage described in two of them is respectively arranged on the two sides of the second channel；Or the first passage surrounds the second channel
Setting.
5. a kind of handle chassis, which is characterized in that tied including handle casing and filtering according to any one of claims 1-4
Structure, the handle casing is interior to be equipped with venthole equipped with the bottom surface with the matched mounting groove of the filter core, the mounting groove, described
Second channel is used to be connected to by the venthole with tracheae, and it is close that the nitric oxide absorbent is set to first check valve
The side of the venthole, the handle casing are equipped with the inlet channel being connected to the first passage.
6. handle chassis according to claim 5, which is characterized in that the filter core is set on the end face of the venthole
Have an intubation being connected to the second channel, the intubation include the first pipeline section be connected to the second channel and with it is described out
Matched second pipeline section of stomata, the outer diameter of first pipeline section are greater than the outer diameter of second pipeline section.
7. a kind of breathing detection handle, which is characterized in that including blow gun and such as the described in any item handle bases of claim 5-6
Seat, the blow gun are removably mounted at the notch of the mounting groove, and the blow gun is equipped with respiration channel, the respiration channel
It can be connected to the first passage, the second channel.
8. breathing detection handle according to claim 7, which is characterized in that further include mounting base, the mounting base is set to
Between the filter core and the blow gun, the mounting base is equipped with and the matched lug boss of the respiration channel, the mounting base
It is equipped with annular outer plate close to the side of the blow gun, is formed between the annular outer plate and the lug boss and is inserted for the blow gun
The grafting space entered.
9. breathing detection handle according to claim 7, which is characterized in that be equipped with bacteriological filter in the respiration channel
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821020019.2U CN208910262U (en) | 2018-06-28 | 2018-06-28 | Filter structure, handle chassis and breathing detection handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821020019.2U CN208910262U (en) | 2018-06-28 | 2018-06-28 | Filter structure, handle chassis and breathing detection handle |
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| Publication Number | Publication Date |
|---|---|
| CN208910262U true CN208910262U (en) | 2019-05-31 |
Family
ID=66694920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821020019.2U Active CN208910262U (en) | 2018-06-28 | 2018-06-28 | Filter structure, handle chassis and breathing detection handle |
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| CN (1) | CN208910262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005405A1 (en) * | 2021-07-29 | 2023-02-02 | 广东邦普循环科技有限公司 | Gas absorption box |
-
2018
- 2018-06-28 CN CN201821020019.2U patent/CN208910262U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005405A1 (en) * | 2021-07-29 | 2023-02-02 | 广东邦普循环科技有限公司 | Gas absorption box |
| GB2621288A (en) * | 2021-07-29 | 2024-02-07 | Guangdong Brunp Recycling Technology Co Ltd | Gas absorption box |
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