Breathing gas sampling device for lung cancer diagnosis

Abstract

The invention discloses a respiratory gas sampling device for lung cancer diagnosis, the respiratory gas sampling device comprises a collection tube, a pneumatic assembly, a gas collection assembly and a gas collection bag, the pneumatic assembly is arranged on the collection tube, the gas collection assembly is arranged above the pneumatic assembly, and the gas collection bag is arranged on the gas collection assembly. The invention belongs to the technical field of medical examination equipment. When different persons to be subjected to lung cancer screening collect breathing gas, only the disposable blowing nozzle, the filter element and the gas collecting bag need to be replaced, cross infection of the screened persons is prevented, a sliding plate of the gas collecting assembly is driven by the pneumatic assembly to reciprocate in the gas cylinder, then the volume and the pressure intensity of a cavity formed by the gas cylinder and a gas cavity of a silica gel bag opening are changed, and the breathing gas is collected. Therefore, the technical effect that the gas collecting bag collects the gas exhaled by the lung cancer screening person is achieved, the gas collecting bag collects the gas exhaled by the screening person for multiple times, the contingency of a single-time exhaling detection result is avoided, and the situation that the exhaling amount of the gas influences the accuracy of detection data is prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical examination equipment, and specifically refers to a respiratory gas sampling device for lung cancer diagnosis. Background Art

[0002] The exhaled gas of the human body contains volatile organic compounds (VOCs). In the body of lung cancer patients, due to the changes in the cytochrome P0 mixed enzyme system and the multi-family genes encoding this enzyme, it will lead to the degradation of oxidative stress metabolites such as alkanes and monomethyl alkanes, changing the VOCs composition of the human body. Therefore, by detecting the composition of VOCs in the exhaled gas of the human body, it has become an important method for early screening of lung cancer.

[0003] When doctors use common gas detection and analysis instruments to detect the exhaled gas of patients, the patients need to blow air into the input end of the gas detection and analysis instrument. Single exhalation detection has contingency, and when the exhaled gas volume is large or small during a single breath detection by the patient, it will reduce the accuracy of the detection data, thus causing certain errors in the diagnosis of lung cancer. When a large number of people are screened for lung cancer, the blowing detection also greatly affects the detection efficiency. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, the present invention provides a respiratory gas sampling device for lung cancer diagnosis, which quantitatively collects the gas exhaled by the screening personnel multiple times through a gas collection bag, and then detects the gas in the gas collection bag through a gas detection and analysis instrument, effectively solving the above problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a respiratory gas sampling device for lung cancer diagnosis, including a collection tube, a pneumatic component, a gas collection component, and a gas collection bag. The pneumatic component is arranged on the collection tube, the gas collection component is arranged above the pneumatic component, and the gas collection bag is arranged on the gas collection component; the collection tube includes a blowing tube and a disposable blowing nozzle. The long end of the blowing tube is the air inlet pipe, the short end of the blowing tube is the air outlet pipe, an impeller chamber is arranged between the air inlet pipe and the air outlet pipe, the disposable blowing nozzle is arranged at the end of the air inlet pipe, and the disposable blowing nozzle is threadedly connected to the air inlet pipe.

[0006] Further, the collection tube further includes a filter element and a sealing ring. The filter element is arranged in the disposable blowing nozzle, the sealing ring is arranged in the air inlet pipe, and the sealing ring is located between the disposable blowing nozzle and the air inlet pipe.

[0007] Further, a gas collection column is arranged at the top of the air inlet pipe. The gas collection column is communicated with the air inlet pipe, and fixing columns are symmetrically arranged on both sides of the air inlet pipe. The axis lines of the fixing columns and the gas collection column are in the same plane.

[0008] Further, the pneumatic component includes an impeller, an impeller gear, and a volute. The impeller rotates in the impeller chamber. The impeller gears are arranged on both sides of the impeller and are located on the outer sides of both sides of the impeller chamber. The volute rotates on a fixed column, and a volute gear is provided on the volute. The volute gear is meshed and connected with the impeller gear.

[0009] Further, the gas collection component includes an air cylinder, a sliding plate, and a tracheal slider assembly. The air cylinder is arranged on the gas collection column. The sliding plate slides inside the air cylinder. A central trachea is provided in the center of the air cylinder, and the tracheal slider assembly is arranged on the top of the central trachea.

[0010] Further, a blocking ring is further provided inside the air cylinder. Sliding grooves are symmetrically provided on the side wall of the air cylinder. An air column sleeve is provided at the bottom of the air cylinder, and the air column sleeve is arranged on the gas collection column. A deflation groove is provided at the top of the central trachea, and the blocking ring is located below the deflation groove.

[0011] Further, a central hole is provided in the center of the sliding plate. The central hole slides on the central trachea. Dialing columns are symmetrically provided on both sides of the sliding plate. The dialing columns slide in the sliding grooves, and the ends of the dialing columns slide on the edge of the volute. A sliding plate return spring is provided at the bottom center of the sliding plate, and the end of the sliding plate return spring is arranged at the inner bottom of the air cylinder.

[0012] Further, the tracheal slider assembly includes a plug column, a tracheal slider, and a slider spring. The slider spring is arranged between the plug column and the tracheal slider. The plug column is buckled on the top of the central trachea, and the tracheal slider slides inside the central trachea.

[0013] Further, the gas collection bag is provided with a silica gel bag mouth. An air cavity is provided in the center of the silica gel bag mouth. A silica gel airtight plate is provided above the air cavity. The silica gel bag mouth is arranged on the air cylinder, and the deflation groove is located inside the air cavity.

[0014] The beneficial effects achieved by the present invention with the above structure are as follows: The simple breathing gas sampling device is convenient to carry, and for the lung cancer screening of a large number of people, the detection efficiency is greatly improved. At the same time, the disposable mouthpiece and filter element prevent cross-infection of the screened personnel. The screened personnel blow air into the blowing tube through the disposable mouthpiece, driving the impeller in the impeller chamber to rotate, so that the impeller gear drives the volute to rotate. During the rotation of the volute, the sliding plate is driven to slide up and down inside the air cylinder, thereby changing the volume and pressure of the cavity formed by the air cylinder and the air cavity of the silica gel bag mouth, so as to achieve the technical effect of collecting the exhaled gas of the lung cancer screening personnel. As the personnel to be screened keep blowing, the gas collection bag collects the exhaled gas of the screening personnel multiple times until the gas collection bag is full, avoiding the contingency of the single exhalation detection result and preventing the exhaled gas volume from affecting the accuracy of the detection data. Description of the Drawings

[0015] Figure 1 A three-dimensional diagram of a respiratory gas sampling device for lung cancer diagnosis proposed by the present invention; Figure 2 An exploded diagram of a respiratory gas sampling device for lung cancer diagnosis proposed by the present invention; Figure 3 This is a front view of a respiratory gas sampling device for lung cancer diagnosis proposed by the present invention; Figure 4 A bottom view of a respiratory gas sampling device for lung cancer diagnosis proposed by the present invention; Figure 5 for Figure 3 A cross-sectional view along the cutting line AA; Figure 6 for Figure 4 A cross-sectional view along the cutting line BB; Figure 7 for Figure 4 A cross-sectional view along the cutting line CC; Figure 8 A schematic diagram of the structure of a gas cylinder of a respiratory gas sampling device for lung cancer diagnosis proposed by the present invention; Figure 9 This is a schematic structural diagram of a sliding plate of a respiratory gas sampling device for lung cancer diagnosis proposed by the present invention; Figure 10 A schematic diagram of the structure of a tracheal slider assembly of a respiratory gas sampling device for lung cancer diagnosis proposed by the present invention; Figure 11 for Figure 5 A partial enlarged view of point Ⅰ in the middle; Figure 12 for Figure 6 A partial enlarged view of point II in the middle.

[0016] Among them, 1. collection tube, 11. blow pipe, 111. air inlet pipe, 114. air collecting column, 115. fixed column, 112. air outlet pipe, 113. impeller chamber, 12. disposable blow nozzle, 13. filter element, 14. sealing ring, 2. pneumatic component, 21. impeller, 22. impeller gear, 23. volute, 231. volute gear, 3. air collecting component, 31. air cylinder, 311. central air pipe, 315. air release groove, 312. blocking ring, 313. slide groove, 314. air column sleeve, 32. sliding plate, 321. center hole, 322. toggle column, 323. sliding plate reset spring, 33. air pipe slider assembly, 331. plug column, 332. air pipe slider, 333. slider spring, 4. air collecting bag, 41. silicone bag mouth, 411. silicone airtight plate, 412. air cavity.

[0017] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0020] As Figures 1 - 12 shown, the present invention provides a respiratory gas sampling device for lung cancer diagnosis, including a collection tube 1, a pneumatic component 2, a gas collection component 3 and a gas collection bag 4. The pneumatic component 2 is arranged on the collection tube 1, the gas collection component 3 is arranged above the pneumatic component 2, and the gas collection bag 4 is arranged on the gas collection component 3; the collection tube 1 includes a blowing tube 11 and a disposable blowing nozzle 12. The long end of the blowing tube 11 is an air inlet tube 111, the short end of the blowing tube 11 is an air outlet tube 112, an impeller chamber 113 is arranged between the air inlet tube 111 and the air outlet tube 112, the disposable blowing nozzle 12 is arranged at the end of the air inlet tube 111, and the disposable blowing nozzle 12 is threadedly connected to the air inlet tube 111.

[0021] The collection tube 1 further includes a filter element 13 and a sealing ring 14. The filter element 13 is arranged in the disposable blowing nozzle 12, and the sealing ring 14 is arranged in the air inlet tube 111. The sealing ring 14 is located between the disposable blowing nozzle 12 and the air inlet tube 111.

[0022] A gas collection column 114 is arranged at the top of the air inlet tube 111. The gas collection column 114 communicates with the air inlet tube 111. Fixed columns 115 are symmetrically arranged on both sides of the air inlet tube 111. The axis lines of the fixed columns 115 and the gas collection column 114 are in the same plane.

[0023] The pneumatic component 2 includes an impeller 21, an impeller gear 22, and a volute member 23. The impeller 21 rotates in the impeller chamber 113. The impeller gears 22 are provided on both sides of the impeller 21, and the impeller gears 22 are located on both outer sides of the impeller chamber 113. The volute member 23 rotates on the fixed column 115, and a volute gear 231 is provided on the volute member 23. The volute gear 231 is meshed and connected with the impeller gear 22.

[0024] The air collecting component 3 includes an air cylinder 31, a sliding plate 32, and a tracheal slider assembly 33. The air cylinder 31 is provided on the air collecting column 114. The sliding plate 32 slides inside the air cylinder 31. A central trachea 311 is provided at the center of the air cylinder 31, and the tracheal slider assembly 33 is provided at the top of the central trachea 311.

[0025] A blocking ring 312 is further provided inside the air cylinder 31. Chute grooves 313 are symmetrically provided on the side wall of the air cylinder 31. An air column sleeve 314 is provided at the bottom of the air cylinder 31, and the air column sleeve 314 is provided on the air collecting column 114. A deflation groove 315 is provided at the top of the central trachea 311, and the blocking ring 312 is located below the deflation groove 315.

[0026] A central hole 321 is provided at the center of the sliding plate 32. The central hole 321 slides on the central trachea 311. Dialing columns 322 are symmetrically provided on both sides of the sliding plate 32. The dialing columns 322 slide in the chute grooves 313, and the ends of the dialing columns 322 slide on the edge of the volute member 23. A sliding plate return spring 323 is provided at the bottom center of the sliding plate 32, and the end of the sliding plate return spring 323 is provided at the inner bottom of the air cylinder 31.

[0027] The tracheal slider assembly 33 includes a plug column 331, a tracheal slider 332, and a slider spring 333. The slider spring 333 is provided between the plug column 331 and the tracheal slider 332. The plug column 331 is buckled at the top of the central trachea 311, and the tracheal slider 332 slides inside the central trachea 311.

[0028] The air collecting bag 4 is provided with a silica gel bag mouth 41. An air cavity 412 is provided at the center of the silica gel bag mouth 41. A silica gel airtight plate 411 is provided above the air cavity 412. The silica gel bag mouth 41 is provided on the air cylinder 31, and the deflation groove 315 is located inside the air cavity 412.

[0029] During specific use, different people who need lung cancer screening only need to replace the disposable mouthpiece 12, the filter element 13 and the air collection bag 4 when collecting respiratory gas. When collecting, a new disposable mouthpiece 12 is installed on the blowpipe 11, and a new air collection bag 4 is inserted into the air cylinder 31. The device is handed to the person who needs lung cancer screening. The person who needs lung cancer screening holds the air inlet pipe 111 of the blowpipe 11 and blows air into the disposable mouthpiece 12. The airflow passes through the impeller compartment 113, driving the impeller 21 in the impeller compartment 113 to rotate. The impeller gears 21 drive the impeller gears 22 on both sides to rotate, and the impeller gears 22 drive the volute 23 to rotate. During the rotation of the volute 23, the toggle post 322 of the sliding plate 32 is squeezed, thereby driving the sliding plate 32 to move up in the air cylinder 31. When the toggle post 322 passes the highest point of the volute 23, the volute 23 has a cliff, and the sliding plate return spring 323 drives the sliding plate 32 to move down quickly. At this time, the cavity formed by the air cylinder 31 and the air cavity 412 of the silicone bag opening 41 is enlarged, so that the air cylinder 31 and the silicone bag opening 41 are Negative pressure is generated at the bottom, which drives the air pipe slider 332 to squeeze the slider spring 333 and move upward, so that the central air pipe 311 is connected to the air cavity 412 through the air release groove 315, and then the air flow in the air intake pipe 111 enters the air cylinder 31 and the air cavity 412 from the top air collecting column 114. When the volute 23 pushes the sliding plate 32 to move upward, the cavity formed by the air cylinder 31 and the air cavity 412 is squeezed, causing its pressure to gradually increase. The air pipe slider 332 without negative pressure pushes the slider spring 333. The air bag 412 is reset under the action of the elastic force, so that the tracheal slider 332 blocks the central trachea 311, and the high pressure pushes the silicone airtight plate 411 upward. The gas in the air cavity 412 flows into the gas collecting bag 4 through the gap in the silicone airtight plate 411. As the person to be screened continues to blow, the gas collecting bag collects the gas exhaled by the screening person many times until the gas collecting bag is full. The medical staff records the information of the person to be screened and sticks it on the corresponding gas collecting bag. The gas collecting bag can be inserted into the gas detection and analysis instrument for detection later.

[0030] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

[0033] The present invention and its embodiments have been described above. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, creatively design a structural manner and embodiments similar to the technical solution, they shall fall within the protection scope of the present invention.

Claims

1. A respiratory gas sampling device for lung cancer diagnosis, characterized in that: It comprises a collection tube (1), a pneumatic component (2), a gas collection component (3) and a gas collection bag (4), wherein the pneumatic component (2) is arranged on the collection tube (1), the gas collection component (3) is arranged above the pneumatic component (2), and the gas collection bag (4) is arranged on the gas collection component (3); The collection tube (1) comprises a blow pipe (11) and a disposable blow nozzle (12); the long end of the blow pipe (11) is an air inlet pipe (111), the short end of the blow pipe (11) is an air outlet pipe (112), an impeller chamber (113) is provided between the air inlet pipe (111) and the air outlet pipe (112), the disposable blow nozzle (12) is provided at the end of the air inlet pipe (111), and the disposable blow nozzle (12) is connected to the air inlet pipe (111) via a thread.

2. A respiratory gas sampling device for lung cancer diagnosis according to claim 1, characterized in that: The collection tube (1) further comprises a filter element (13) and a sealing ring (14); the filter element (13) is arranged in the disposable mouthpiece (12); the sealing ring (14) is arranged in the air inlet pipe (111); and the sealing ring (14) is located between the disposable mouthpiece (12) and the air inlet pipe (111).

3. A respiratory gas sampling device for lung cancer diagnosis according to claim 2, characterized in that: A gas collecting column (114) is provided at the top of the air intake pipe (111), the gas collecting column (114) is connected to the air intake pipe (111), and fixing columns (115) are symmetrically provided on both sides of the air intake pipe (111), and the axis of the fixing columns (115) and the gas collecting column (114) are on the same plane.

4. A respiratory gas sampling device for lung cancer diagnosis according to claim 3, characterized in that: The pneumatic assembly (2) comprises an impeller (21), an impeller gear (22) and a volute (23); the impeller (21) rotates in an impeller chamber (113); the impeller gear (22) is arranged on both sides of the impeller (21); the impeller gear (22) is located on both sides of the outside of the impeller chamber (113); the volute (23) rotates on a fixed column (115); a volute gear (231) is arranged on the volute (23); and the volute gear (231) is meshedly connected with the impeller gear (22).

5. A respiratory gas sampling device for lung cancer diagnosis according to claim 4, characterized in that: The gas collection assembly (3) comprises a gas cylinder (31), a sliding plate (32) and a gas pipe slider assembly (33); the gas cylinder (31) is arranged on a gas collection column (114); the sliding plate (32) slides inside the gas cylinder (31); a central gas pipe (311) is arranged at the center of the gas cylinder (31); and the gas pipe slider assembly (33) is arranged at the top of the central gas pipe (311).

6. A respiratory gas sampling device for lung cancer diagnosis according to claim 5, characterized in that: A blocking ring (312) is further provided inside the gas cylinder (31), sliding grooves (313) are symmetrically provided on the side walls of the gas cylinder (31), a gas column sleeve (314) is provided at the bottom of the gas cylinder (31), the gas column sleeve (314) is arranged on the gas collecting column (114), a gas relief groove (315) is provided at the top of the central gas pipe (311), and the blocking ring (312) is located at the lower side of the gas relief groove (315).

7. A respiratory gas sampling device for lung cancer diagnosis according to claim 6, characterized in that: A center hole (321) is provided at the center of the sliding plate (32), and the center hole (321) slides on the center air pipe (311). Actuating columns (322) are symmetrically provided on both sides of the sliding plate (32), and the actuating columns (322) slide in the slide grooves (313). The ends of the actuating columns (322) slide on the edges of the volutes (23). A sliding plate return spring (323) is provided at the center bottom of the sliding plate (32), and the end of the sliding plate return spring (323) is provided at the inner bottom of the air cylinder (31).

8. A respiratory gas sampling device for lung cancer diagnosis according to claim 7, characterized in that: The air pipe slider assembly (33) comprises a plug post (331), an air pipe slider (332) and a slider spring (333); the slider spring (333) is arranged between the plug post (331) and the air pipe slider (332); the plug post (331) is buckled on the top of the central air pipe (311); and the air pipe slider (332) slides in the central air pipe (311).

9. A respiratory gas sampling device for lung cancer diagnosis according to claim 8, characterized in that: The air collecting bag (4) is provided with a silica gel bag opening (41), an air cavity (412) is provided at the center of the silica gel bag opening (41), a silica gel airtight plate (411) is provided above the air cavity (412), the silica gel bag opening (41) is provided on the air cylinder (31), and the air release groove (315) is located in the air cavity (412).

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