CN214906900U - Breathing sampling device for lung cancer diagnosis - Google Patents
Breathing sampling device for lung cancer diagnosis Download PDFInfo
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- CN214906900U CN214906900U CN202120824372.1U CN202120824372U CN214906900U CN 214906900 U CN214906900 U CN 214906900U CN 202120824372 U CN202120824372 U CN 202120824372U CN 214906900 U CN214906900 U CN 214906900U
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- lung cancer
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a respiratory sampling device for lung cancer diagnosis, which comprises a sampling pipe and an air inlet pipe, wherein one end of the sampling pipe is communicated with a connecting pipe, the other end of the sampling pipe is hermetically connected with a collecting device, one side of the sampling pipe is communicated with the air inlet pipe, a one-way conduction structure is arranged in the sampling pipe, and the one-way conduction structure can prevent gas from flowing back in the sampling pipe; the inside gas of sampling pipe will be analyzed in being got into analytical instrument through the connecting pipe, breathe the sampling and accomplish the back, under compression spring's elasticity effect, seal ring again is sealed in the seal groove to prevent that gas is palirrhea.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a breathe sampling device for lung cancer diagnosis.
Background
Numerous studies have shown that there are volatile organic compounds in the exhaled breath of patients suffering from lung cancer, which are derived from the oxidation of unsaturated fatty acids during carcinogenesis and can therefore be used as biomarkers to identify cancer.
The doctor often uses gas detection analysis instrument to detect the gas of patient's exhalation to can diagnose lung cancer disease, gas detection analysis instrument when using, needs the patient to blow to gas detection analysis instrument's input, so that gas enters into gas detection analysis instrument's air inlet chamber. However, when the patient breathes and samples, the patient expired gas stops the expired gas along with the patient after getting into analytical instrument, and the patient can subconsciously inhale, leads to partial expired gas to be siphoned away, leads to the accuracy of detected data to reduce to make the diagnosis of lung cancer have certain error.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defect that the gas exhaled by the patient is sucked away again in the prior art, and providing a respiratory sampling device for lung cancer diagnosis.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the respiratory sampling device for lung cancer diagnosis comprises a sampling pipe and an air inlet pipe, wherein one end of the sampling pipe is communicated with a connecting pipe, the other end of the sampling pipe is connected with a collecting device in a sealing mode, one side of the sampling pipe is communicated with the air inlet pipe, a one-way conduction structure is arranged in the sampling pipe, and gas can be prevented from flowing back in the sampling pipe through the one-way conduction structure;
the one-way conduction structure includes valve plate and apron, the shape of valve plate with the inside shape phase-match of sampling tube, valve plate sealing connection is in inside the sampling tube, annular seal groove has been seted up to the valve plate up end, the inside through-hole that is used for holding the air current and passes through of seting up of seal groove, the guiding hole has been seted up at the valve plate middle part, apron bottom surface rigid coupling has the guide bar, guide bar slidable connects in the guiding hole, the rigid coupling has annular seal ring on the apron bottom surface, seal ring's shape with the shape phase-match of seal groove, seal ring slidable connects in the seal groove, guide bar bottom rigid coupling has the screw rod, screw rod bottom spiro union has the nut, the cover is equipped with compression spring on the screw rod, the compression spring cover is established on the guide bar.
Preferably, the collection device includes first baffle, second baffle and collecting box, collecting box detachable connects the sampling tube bottom, the collecting box with the sampling tube is linked together, the rigid coupling of first baffle rigid coupling slope is in the sampling tube is inside, first baffle is located one-way conduction structure with between the intake pipe, the rigid coupling of second baffle slope is in on the sampling tube inner wall, the second baffle is located one-way conduction structure with between the first baffle.
Preferably, the air inlet pipe is detachably connected with a blowing nozzle.
Preferably, the mouthpiece comprises a disposable mouthpiece.
The utility model provides a breathe sampling device for lung cancer diagnosis, beneficial effect lies in: this a breathe sampling device for lung cancer diagnosis when the sampling, patient is gaseous through the intake pipe internal call to the sampling pipe, the inside entering pressure increase along with gas of sampling pipe, seal ring receives also can increase gradually, when pressure is greater than compression spring's elasticity, compression spring can be compressed, seal ring also can break away from in the seal groove, at this moment, connecting pipe and valve plate below intercommunication, the inside gas of sampling pipe will be analyzed in getting into analytical instrument through the connecting pipe, breathe the sampling completion after, under compression spring's elastic force effect, seal ring can be sealed again in the seal groove, in order to prevent that the gas is palirrhea.
Drawings
Fig. 1 is a schematic structural diagram of a breath sampling device for lung cancer diagnosis according to the present invention.
Fig. 2 is a cross-sectional view of a breath sampling device for lung cancer diagnosis according to the present invention.
Fig. 3 is a schematic structural diagram of a one-way conduction structure of a respiratory sampling device for lung cancer diagnosis according to the present invention.
Fig. 4 is a cross-sectional view of the one-way conduction structure of the breath sampling device for lung cancer diagnosis provided by the present invention.
In the figure: the device comprises a sampling pipe 1, an air inlet pipe 2, a blowing nozzle 3, a first baffle 4, a second baffle 5, a connecting pipe 6, a one-way conduction structure 7, a valve plate 701, a sealing groove 702, a through hole 703, a cover plate 704, a sealing gasket 705, a guide rod 706, a screw 707, a guide hole 708, a compression spring 709, a nut 710 and a collecting box 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a breathe sampling device for lung cancer diagnosis, including sampling pipe 1 and intake pipe 2, 1 one end intercommunication of sampling pipe has connecting pipe 6, and connecting pipe 6 is used for the input of connecting instrument, and sampling pipe 1 one side is linked together with intake pipe 2, and the cover is established mouthpiece 3 on the intake pipe 2, and mouthpiece 3 chooses the disposable mouthpiece of silica gel material for use, changes after the sampling at every turn, takes place cross infection when preventing patient from breathing the sampling.
The sampling tube 1 is internally provided with a one-way conduction structure 7, the one-way conduction structure 7 can prevent gas from flowing back in the sampling tube 1, the one-way conduction structure 7 comprises a valve plate 701 and a cover plate 704, the shape of the valve plate 701 is matched with that of the sampling tube 1, the valve plate 701 is hermetically connected with the inside of the sampling tube 1, the upper end surface of the valve plate 701 is provided with an annular sealing groove 702, the inside of the sealing groove 702 is provided with a through hole 703 for accommodating airflow, the middle part of the valve plate 701 is provided with a guide hole 708, the bottom surface of the cover plate 704 is fixedly connected with a guide rod 706, the guide rod 706 is matched with the guide hole 708 and is used for guiding the moving direction of the cover plate 704, the bottom surface of the cover plate 704 is fixedly connected with an annular sealing gasket 705, the shape of the sealing gasket 705 is matched with that of the sealing groove 702, the sealing gasket is slidably connected in the sealing groove 702, the bottom of the guide rod 706 is fixedly connected with a screw 707, and a nut 710 is screwed at the bottom of the screw 707, the screw 707 is sleeved with a compression spring 709, and the compression spring 709 is sleeved on the guide rod 706. The cover plate 704 is abutted to the upper surface of the valve plate 701 under the action of the elastic force of the compression spring 709, the sealing washer 705 is sealed in the sealing groove 702, when sampling is performed, a patient inhales gas into the sampling pipe 1 through the gas inlet pipe 2, the pressure inside the sampling pipe 1 is increased along with the entering of the gas, the pressure applied to the sealing washer 705 is gradually increased, when the pressure is greater than the elastic force of the compression spring 709, the compression spring 709 is compressed, the sealing washer 705 is separated from the sealing groove 702, at the moment, the connecting pipe 6 is communicated with the lower part of the valve plate 701, the gas inside the sampling pipe 1 is analyzed by entering the analyzer through the connecting pipe 6, after breath sampling is completed, under the action of the elastic force of the compression spring 709, the sealing washer 705 is sealed in the sealing groove 702 again to prevent the backflow of the gas.
Sampling pipe 1's other end sealing connection has collection device, collection device includes first baffle 4, second baffle 5 and collecting box 8, 8 spiro unions of collecting box are in sampling pipe 1 bottom, collecting box 8 is linked together with sampling pipe 1, the rigid coupling of 4 rigid couplings slopes of first baffle is inside sampling pipe 1, first baffle 4 is located between one-way conduction structure 7 and the intake pipe 2, the rigid coupling of 5 slopes of second baffle is on 1 inner wall of sampling pipe, second baffle 5 is located between one-way conduction structure 7 and first baffle 4. During the breathing sampling, contain a large amount of vapor in the gas of patient's exhalation, when the air current that gets into sampling pipe 1 inside from intake pipe 2 flows, can be blockked by first baffle 4 and second baffle 5 and carry out buffering, cooling, vapor in the gas can be attached to and form the water droplet on first baffle 4 and 5 bottom surfaces of second baffle, can be collected by collecting box 8 after the water droplet drips under the effect of gravity, carries out centralized processing after the collection.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The respiratory sampling device for lung cancer diagnosis is characterized by comprising a sampling tube (1) and an air inlet tube (2), wherein one end of the sampling tube (1) is communicated with a connecting tube (6), the other end of the sampling tube (1) is hermetically connected with a collecting device, one side of the sampling tube (1) is communicated with the air inlet tube (2), a one-way conducting structure (7) is arranged in the sampling tube (1), and the one-way conducting structure (7) can prevent gas from flowing back in the sampling tube (1);
the one-way conduction structure (7) comprises a valve plate (701) and a cover plate (704), the shape of the valve plate (701) is matched with the shape of the interior of the sampling tube (1), the valve plate (701) is connected with the interior of the sampling tube (1) in a sealing manner, an annular sealing groove (702) is formed in the upper end face of the valve plate (701), a through hole (703) for accommodating airflow to pass through is formed in the sealing groove (702), a guide hole (708) is formed in the middle of the valve plate (701), a guide rod (706) is fixedly connected to the bottom face of the cover plate (704), the guide rod (706) is slidably connected into the guide hole (708), an annular sealing gasket (705) is fixedly connected to the bottom face of the cover plate (704), the shape of the sealing gasket (705) is matched with the shape of the sealing groove (702), and the sealing gasket (705) is slidably connected into the sealing groove (702), the utility model discloses a lead screw, including guide bar (706), screw rod (707) are connected to guide bar (706) bottom rigid coupling, screw rod (707) bottom spiro union has nut (710), the cover is equipped with compression spring (709) on screw rod (707), compression spring (709) cover is established on guide bar (706).
2. The breath sampling device for lung cancer diagnosis according to claim 1, wherein the collecting device comprises a first baffle (4), a second baffle (5) and a collecting box (8), the collecting box (8) is detachably connected to the bottom of the sampling tube (1), the collecting box (8) is communicated with the sampling tube (1), the first baffle (4) is fixedly connected and obliquely fixed inside the sampling tube (1), the first baffle (4) is located between the one-way conducting structure (7) and the air inlet tube (2), the second baffle (5) is fixedly connected and obliquely connected to the inner wall of the sampling tube (1), and the second baffle (5) is located between the one-way conducting structure (7) and the first baffle (4).
3. The breath sampling device for lung cancer diagnosis according to claim 1, wherein a mouthpiece (3) is detachably connected to the air inlet tube (2).
4. The breath sampling device for lung cancer diagnosis according to claim 3, wherein the mouthpiece (3) comprises a disposable mouthpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120824372.1U CN214906900U (en) | 2021-04-21 | 2021-04-21 | Breathing sampling device for lung cancer diagnosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120824372.1U CN214906900U (en) | 2021-04-21 | 2021-04-21 | Breathing sampling device for lung cancer diagnosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214906900U true CN214906900U (en) | 2021-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120824372.1U Active CN214906900U (en) | 2021-04-21 | 2021-04-21 | Breathing sampling device for lung cancer diagnosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214906900U (en) |
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2021
- 2021-04-21 CN CN202120824372.1U patent/CN214906900U/en active Active
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