Handheld nasal resistance measuring device convenient to disinfect

Abstract

The invention discloses a handheld nasal resistance measuring device convenient to disinfect, which comprises a nasal resistance measuring instrument body and a cover body matched with the nasal resistance measuring instrument body, two groups of cleaning assemblies are arranged in the cover body, each group of cleaning assembly comprises a water blocking piston, a right-angle water pipe is arranged on the water blocking piston, and the right-angle water pipe is connected with the water blocking piston. The right-angle water pipe is provided with two first nozzles facing the inner wall of the olive head and the top end of the olive head, and the right-angle water pipe is connected with a second nozzle facing the inclined face of the olive head through a water hose. According to the olive head cleaning device, along with the change of a to-be-cleaned area of an olive head, different amounts of cleaning liquid are adopted, the cleaning liquid is utilized to the maximum extent, meanwhile, targeted cleaning is achieved, a good cleaning effect can be achieved by adopting a small amount of cleaning liquid, and during cleaning, medical workers only need to pull the pull disc and rotate the pull rod, so that the cleaning efficiency is greatly improved. And the cleaning workload of medical staff is greatly reduced.

Description

Technical Field

[0001] The invention mainly relates to the technical field of medical devices, and in particular to a handheld nasal resistance measuring device which is easy to disinfect. Background Art

[0002] Rhinometry is a method of testing the resistance to intranasal flow by measuring the pressure drop across each nostril and the associated nasal cavity (superior pharynx) during inspiration and expiration. These tests can be either active or passive. In order to determine the aerosol resistance of a nostril with an associated nasal cavity, it is necessary to determine the pressure difference generated from the nostril opening to the upper edge of the nose (nasal septum) during inspiration or expiration, simultaneously with the corresponding airflow.

[0003] With the advancement of technology, when using the existing nasal resistance measuring instrument for testing, it is only necessary to install an olive head on the nasal connecting head of the nasal resistance measuring instrument, and then insert the olive head into the patient's nostril for testing. After use, it is only necessary to replace or clean the olive head.

[0004] If the olive tip is constantly disassembled and replaced, the air tightness between the olive tip and the nasal tube will decrease after a long time. Therefore, existing medical staff will directly use cleaning fluid to disinfect and clean the olive tip for reuse.

[0005] The handheld nasal resistance measuring device is portable due to its handheld feature. In order to facilitate the disinfection of the handheld nasal resistance measuring device, most devices integrate a disinfectant tank into the handheld nasal resistance measuring device body, thereby avoiding the dilemma of the nasal resistance measuring device being unable to be recycled due to the lack of disinfectant. However, since the handheld nasal resistance measuring device is relatively small, the amount of cleaning liquid it can carry is also relatively small. If you do not pay attention to the use of the cleaning liquid during cleaning, the cleaning liquid will run out after two or three times of cleaning and need to be refilled, and the integrated disinfectant tank will become meaningless. Summary of the invention

[0006] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. Specifically, the present invention mainly provides a handheld nasal resistance measuring device that is easy to disinfect, so as to solve the technical problems raised in the above-mentioned background technology.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: A handheld nasal resistance measuring device that is easy to disinfect, comprising a nasal resistance measuring instrument body and a cover body adapted thereto, wherein the nasal resistance measuring instrument body is provided with two sets of nasal contact components, wherein the nasal contact components include an olive head and a straight tube that are rotatably connected to each other, and a telescopic gas pressure rod is provided on the opposite sides of the two olive heads; Two groups of cleaning components are arranged inside the cover body, one opposite to the two groups of nose contact components. Each group of cleaning components includes a water-blocking piston adapted to the inner wall of the straight tube. A right-angle water pipe is arranged on the water-blocking piston. Two first nozzles facing the inner wall of the olive head and the top of the olive head are installed on the right-angle water pipe. The right-angle water pipe is connected to a second nozzle facing the inclined surface of the olive head through a soft water pipe. The cleaning assembly also includes a mounting frame, a water storage pipeline and a swing sprocket; A pull plate is provided on one side of the cover body.

[0008] Preferably, two left and right detection channels are arranged at the upper inner end of the main body of the nasal resistance measuring instrument, and the two detection channels are connected to the two straight tubes in a one-to-one correspondence.

[0009] Preferably, when the telescopic pneumatic rod is extended or retracted, the movable end of the telescopic pneumatic rod slides on the inclined surface of the olive head, an adjusting chamber is provided between the two detection channels, and an adjusting screw is rotatably installed inside the adjusting chamber, an adjusting piston sliding inside the adjusting chamber is threadedly connected to the adjusting screw, the adjusting chamber is respectively connected to the two telescopic pneumatic rods through a three-way joint and an air hose, and the axis of the adjusting screw is connected to a friction wheel located outside the nasal resistance measuring instrument body.

[0010] Preferably, a liquid storage tank is arranged in the body of the nasal resistance measuring instrument, a quantitative component is arranged at the output end of the liquid storage tank, the quantitative component comprises an infusion cylinder, the infusion cylinder is provided with an infusion cavity and a limit cavity, the liquid inlet of the infusion cylinder is located in the infusion cavity and is connected to the liquid storage tank, the liquid outlet of the infusion cylinder is located in the infusion cavity and is connected to a three-way pipe, the liquid storage tank provides cleaning liquid to two groups of cleaning components through the three-way pipe, a suction and pressure piston is slidably arranged inside the infusion cavity, and a sliding sealing liquid inlet is connected to one side of the suction and pressure piston Or an arc sealing plate of the liquid outlet, a pull rod is rotatably connected between the suction and pressure piston and the pull plate, an extension block connected to the suction and pressure piston and a rotatably installed limit screw are arranged inside the limit cavity, and the limit screw is threadedly connected with a limit block, the limit block is located between the extension block and the suction and pressure piston, a limit rack connected to the slider on the mounting frame is slidably arranged inside the limit cavity, the limit rack is meshed with a limit gear, and the limit gear is transmission connected to the limit screw through two mutually meshing bevel gears, a sprocket and a chain belt.

[0011] Preferably, a slider connected to a spring is slidably arranged on the placement frame, and an extrusion telescopic rod with a built-in spring is installed on the side of the slider facing the water-blocking piston, a water-pressing piston is slidably arranged inside the water storage pipeline, one end of the water-pressing piston is connected to the slider through a connecting rod, a rotating joint is arranged at the axis of the swing sprocket, a placement cavity and a placement groove are respectively arranged on both sides of the rotating joint, a fixed water pipe is arranged inside the placement cavity, a lifting piston is slidably arranged on the fixed water pipe, a lifting frame is slidably arranged inside the placement groove, the lifting piston and the lifting frame are connected through a connecting rod, and the fixed water pipe is connected through a direct joint. and one end of the rotary joint, the water storage pipeline is connected to the other end of the rotary joint through a water hose, a spring is sleeved on the fixed water pipe, oil is filled between the water pressure piston and the lifting piston, the second nozzle is installed on the inner wall of the cover body through a rotating frame, a sliding frame is provided on one side of the second nozzle, and a sliding block slides on the sliding frame, a transmission rod is rotatably connected between the sliding block and the lifting frame, a transmission telescopic rod with a built-in spring is rotatably connected between the sliding block and the second nozzle, and when the cover body and the nasal resistance measuring instrument body are in contact, the movable end of the extrusion telescopic rod slides on the inclined surface of the olive head.

[0012] Preferably, as the swing sprocket rotates, the sliding block moves up and down back and forth with the middle end of the sliding frame as the center, and when the sliding block is located at the middle end of the sliding frame, the second nozzle faces the uppermost end of the olive head inclined surface, and a limit plate is provided above the second nozzle. When the second nozzle faces the uppermost end of the olive head inclined surface, the second nozzle is in contact with the limit plate.

[0013] Preferably, a driving assembly is provided on the nasal resistance measuring instrument body and the cover body, and the driving assembly includes a follower gear ring mounted on an olive head, and the two follower gear rings are commonly meshed with a center gear, and the center gear is provided with a plurality of blocks distributed in a circle around the axis of the center gear, and a cylindrical block is rotatably mounted on the lower end of the cover body, and a plurality of slots distributed in a circle around the axis of the cylindrical block are provided at the lower end of the cylindrical block, and the slots and blocks are matched.

[0014] Preferably, the pull plate is equipped with a driving rack located inside the cover body, the driving rack is meshed with a driving gear, and driving sprockets are axially connected to both sides of the driving gear, the driving sprocket and the swing sprocket are connected by a chain, and a driven gear is meshed at the lower end of the driving gear, and the driven gear is connected to the cylindrical block through two meshing bevel gears.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) When the cover body and the body of the nasal resistance measuring instrument are in contact, the movable end of the extrusion telescopic rod slides on the inclined surface of the olive head. As the body of the nasal resistance measuring instrument drives the olive head to go deeper into the cover body, the extrusion telescopic rod is continuously squeezed, which drives the slider on the mounting frame to slide and compresses the spring on the mounting frame. The water pressure piston moves with the slider on the mounting frame, and squeezes the oil inside the water storage pipeline into the mounting cavity of the swing sprocket through the water hose, the rotating joint and the fixed water pipe. The spring inside the mounting cavity contracts, and the lifting piston moves, changing the position of the lifting frame. When the swing sprocket rotates, it drives the sliding block to move back and forth on the sliding frame through the transmission rod, so that the second nozzle swings. If the lifting frame slides inside the mounting groove, the amplitude of the sliding block moving back and forth on the sliding frame will also change accordingly, and the swing amplitude range of the second nozzle will also change accordingly. The sliding block moves up and down with the middle end of the sliding frame as the center. When the sliding block moves upward, due to the obstruction of the limit plate, the second nozzle is always aimed at the uppermost end of the inclined surface of the olive head. When the sliding block moves downward, the second nozzle swings downward with the sliding block to clean the inclined surface of the olive head. To sum up: the nostrils of each patient are of different sizes, and the sizes of the olive head areas covered by their nostrils are also different, so only the area of ​​the olive head covered by the nostrils needs to be cleaned. Comprehensive cleaning and targeted cleaning of the olive head have the same cleaning effect, but the amount of cleaning used is different; the cleaning component of the present device can achieve targeted cleaning, and a good cleaning effect can be achieved with a small amount of cleaning liquid. During cleaning, medical staff only need to pull the pull plate and turn the pull rod, which greatly reduces the workload of medical staff in cleaning.

[0016] (2) When the cover body and the body of the nasal resistance measuring instrument are in contact, as the slider on the mounting frame slides, the limit rack moves with it and drives the limit gear to rotate, so that the limit screw drives the limit block to move; when the pull plate is pulled out, the suction and pressure piston moves with it until the limit block and the extension block are in contact. At this time, the pull rod is rotated so that the suction and pressure piston drives the arc sealing plate to rotate around the pull rod, and the arc sealing plate blocks the liquid inlet and becomes the liquid outlet. The cleaning liquid in the liquid storage tank enters the infusion tube. When the infusion tube is filled with cleaning liquid, the suction and pressure piston is rotated again to reset the arc sealing plate, and the cleaning liquid in the infusion tube will enter the two cleaning components through the liquid outlet; To sum up: the nostrils of each patient are of different sizes, and the sizes of the olive tip areas covered by their nostrils are also different. The larger the nostrils, the larger the olive tip area covered, and the larger the area of ​​the olive tip that needs to be cleaned. This quantitative component uses different amounts of cleaning solution as the area of ​​the olive tip that needs to be cleaned changes. The larger the area of ​​the olive tip that needs to be cleaned, the more cleaning solution is used, and the smaller the area of ​​the olive tip that needs to be cleaned, the less cleaning solution is used, thereby maximizing the utilization of a certain amount of cleaning solution.

[0017] (3) When the cover body and the body of the nasal resistance meter are in contact, the card slot and the card block are engaged, and as the driving rack drives the driving gear to rotate, the driving sprocket follows the rotation, driving the swing sprocket to rotate, and at the same time the driven gear also follows the driving gear to rotate, and the center gear is driven to rotate by driving the cylindrical block, so that the two olive heads can rotate during cleaning, further improving the cleaning effect.

[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the partial structure of the nasal resistance measuring instrument of the present invention; Figure 2 It is a schematic diagram of the structure of the nose contact component of the present invention; Figure 3 It is a schematic diagram of the local structure of the driving component of the present invention; Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the cover body of the present invention; Figure 6 It is a schematic diagram of the quantitative component structure of the present invention; Figure 7 It is a schematic diagram of the local structure of the driving component of the present invention; Figure 8 It is a schematic diagram of the structure of the cleaning component of the present invention; Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle.

[0020] In the figure: 1. Nasal resistance measuring instrument body; 2. Cover body; 201. Pull plate; 3. Detection channel; 4. Nose contact assembly; 401. Olive head; 402. Straight tube; 403. Telescopic gas pressure rod; 404. Adjusting screw; 405. Adjusting piston; 406. Friction wheel; 5. Liquid storage tank; 501. Infusion tube; 502. Pumping piston; 503. Arc sealing plate; 504. Pull rod; 505. Limiting block; 506. Limiting rack; 507. Limiting gear; 508. Extension block; 6. Driving assembly; 601. Follower gear ring; 602. Central gear; 603. Block; 604. Cylindrical block; 605. Driving rack; 606. Driving gear; 607. Driving sprocket; 608. Driven gear; 7. Cleaning assembly; 701. Water-blocking piston; 702. Right-angle water pipe; 703. First nozzle; 704. Second nozzle; 705. Mounting frame; 706. Water storage pipeline; 707. Swinging sprocket; 708. Extrusion telescopic rod; 709. Water pressure piston; 710. Rotating joint; 711. Fixed water pipe; 712. Lifting piston; 713. Lifting frame; 714. Sliding block; 715. Transmission rod; 716. Transmission telescopic rod; 717. Limiting plate. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0024] Example 1: Please refer to the attached Figure 5-Figure 9 As shown; A handheld nasal resistance measuring device that is easy to disinfect includes a nasal resistance measuring instrument body 1 and a cover body 2 that is compatible with the nasal resistance measuring instrument body 1. Two groups of nasal contact components 4 are arranged outside the nasal resistance measuring instrument body 1. The nasal contact component 4 includes an olive head 401 and a straight tube 402 that are rotatably connected to each other. Two left and right detection channels 3 are arranged at the upper end of the internal part of the nasal resistance measuring instrument body 1. The two detection channels 3 and the two straight tubes 402 are connected one by one. The nasal resistance measuring instrument body 1 used in this device can be the ZK-NR-100 series nasal resistance measuring instrument of Anhui Zhongke Medical Equipment Co., Ltd. For details, please refer to patent applications with application numbers 202022597760.9 and 202011491857.X. The innovation point of this application is the contact part between the nasal resistance measuring instrument and the human body. Therefore, this application will no longer give a detailed description of the internal mechanism of the nasal resistance measuring instrument body 1.

[0025] A telescopic pneumatic rod 403 is provided on the opposite side of the two olive heads 401. When the telescopic pneumatic rod 403 is extended or retracted, the movable end of the telescopic pneumatic rod 403 slides on the inclined surface of the olive head 401. An adjusting cavity is provided between the two detection channels 3, and an adjusting screw 404 is rotatably installed inside the adjusting cavity. An adjusting piston 405 sliding inside the adjusting cavity is threadedly connected to the adjusting screw 404. The adjusting cavity is connected to the two telescopic pneumatic rods 403 respectively through a three-way joint and an air hose. The axis of the adjusting screw 404 is connected to a friction wheel 406 located outside the nasal resistance measuring instrument body 1. When using the nasal resistance measuring device, the medical staff will first insert the olive head 401 into the patient's nostril. As the olive head 401 goes deeper into the patient's nostril, the inclined surface of the olive head 401 contacts the inner wall of the nostril, and the olive head 401 blocks the patient's nostril. At this time, the medical staff manually rotates the friction wheel 406, and the friction wheel 406 drives the adjusting screw 404 to rotate, so that the adjusting piston 405 slides inside the adjusting chamber, and the gas inside the adjusting chamber is pressed into the two telescopic pneumatic rods 403, so that the telescopic pneumatic rods 403 extend until the movable end of the telescopic pneumatic rods 403 contacts the outer wall of the patient's nostril, and the friction wheel 406 cannot rotate. By extending and shortening the telescopic pneumatic rods 403, the area of ​​the patient's nostrils covered by the olive head 401 can be clearly marked.

[0026] Two groups of cleaning components 7 are arranged inside the cover body 2, one-to-one with the two groups of nose contact components 4. Each group of cleaning components 7 includes a water-blocking piston 701 adapted to the inner wall of the straight tube 402. A right-angle water pipe 702 is arranged on the water-blocking piston 701. Two first nozzles 703 facing the inner wall of the olive head 401 and the top of the olive head 401 are installed on the right-angle water pipe 702. The right-angle water pipe 702 is connected to a second nozzle 704 facing the inclined surface of the olive head 401 through a soft water pipe. The water-blocking piston 701 can effectively prevent the cleaning liquid from entering the inside of the nose resistance measuring instrument body 1 through the nose contact component 4, thereby ensuring the effective use of the present nose resistance measuring device.

[0027] The cleaning assembly 7 also includes a mounting frame 705, a water storage pipeline 706 and a swing sprocket 707. A slider connected to a spring slides on the mounting frame 705, and an extrusion telescopic rod 708 with a built-in spring is installed on the side of the slider facing the water blocking piston 701. A water pressure piston 709 slides inside the water storage pipeline 706, and one end of the water pressure piston 709 is connected to the slider through a connecting rod. A rotating joint 710 is provided at the axis of the swing sprocket 707, and a mounting cavity and a mounting groove are respectively provided on both sides of the rotating joint 710. A fixed water pipe 711 is provided inside the mounting cavity, and a lifting piston 712 slides on the fixed water pipe 711. A lifting frame 713 slides inside the mounting groove, and the lifting piston 712 and the lifting frame 713 are connected by a connecting rod. 711 is connected to one end of the rotary joint 710 through a direct joint, and the water storage pipeline 706 is connected to the other end of the rotary joint 710 through a water hose. A spring is set on the fixed water pipe 711, and oil is filled between the water pressure piston 709 and the lifting piston 712. The second nozzle 704 is installed on the inner wall of the cover body 2 through a rotating frame. A sliding frame is provided on one side of the second nozzle 704, and a sliding block 714 slides on the sliding frame. A transmission rod 715 is rotatably connected between the sliding block 714 and the lifting frame 713. A transmission telescopic rod 716 with a built-in spring is rotatably connected between the sliding block 714 and the second nozzle 704. When the cover body 2 and the nasal resistance measuring instrument body 1 are in contact, the movable end of the extrusion telescopic rod 708 slides on the inclined surface of the olive head 401. As the swing sprocket 707 rotates, the sliding block 714 moves up and down with the middle end of the sliding frame as the center, and when the sliding block 714 is located at the middle end of the sliding frame, the second nozzle 704 faces the uppermost end of the inclined surface of the olive head 401, and a limiting plate 717 is provided above the second nozzle 704. When the second nozzle 704 faces the uppermost end of the inclined surface of the olive head 401, the second nozzle 704 is in contact with the limiting plate 717.

[0028] When the cover body 2 and the nasal resistance measuring instrument body 1 are in contact, the movable end of the extrusion telescopic rod 708 slides on the inclined surface of the olive head 401. As the nasal resistance measuring instrument body 1 drives the olive head 401 to go deeper into the cover body 2, the extrusion telescopic rod 708 is continuously squeezed, which drives the slider on the mounting frame 705 to slide and compress the spring on the mounting frame 705. The water pressure piston 709 moves with the slider on the mounting frame 705, and squeezes the oil inside the water storage pipeline 706 into the mounting cavity of the swing sprocket 707 through the water hose, the rotating joint 710 and the fixed water pipe 711. The spring inside the mounting cavity contracts, and the lifting piston 712 moves to change the position of the lifting frame 713. When the swing sprocket 707 rotates, it drives the sliding block 714 to move back and forth on the sliding frame through the transmission rod 715, so that the second nozzle 704 swings. If the lifting frame 713 slides inside the placement groove, the amplitude of the sliding block 714 moving back and forth on the sliding frame will also change accordingly, and the swing amplitude range of the second nozzle 704 will also change accordingly. The sliding block 714 moves up and down with the middle end of the sliding frame as the center. When the sliding block 714 moves upward, due to the obstruction of the limit plate 717, the second nozzle 704 is always aligned with the uppermost end of the inclined surface of the olive head 401. When the sliding block 714 moves downward, the second nozzle 704 swings downward with the sliding block 714 to clean the inclined surface of the olive head 401. The nostrils of each patient are of different sizes, and the sizes of the olive head 401 areas covered by their nostrils are also different, so only the area of ​​the olive head 401 covered by the nostrils needs to be cleaned. Therefore, comprehensive cleaning and targeted cleaning of the olive head 401 have the same cleaning effect, but the cleaning amounts used are different; the cleaning component 7 of the present device can achieve targeted cleaning, and a good cleaning effect can be achieved with a small amount of cleaning liquid.

[0029] Example 2: Based on Example 1, please refer to the attached Figure 5-Figure 9 As shown; A pull plate 201 is provided on one side of the cover body 2. A liquid storage tank 5 is provided in the body 1 of the nasal resistance measuring instrument. A quantitative component is provided at the output end of the liquid storage tank 5. The quantitative component includes an infusion tube 501. The infusion tube 501 has an infusion cavity and a limit cavity built therein. The infusion tube 501 has an infusion cavity and is connected to the liquid storage tank 5. The infusion tube 501 has an outlet located in the infusion cavity and is connected to a three-way pipe. The liquid storage tank 5 provides cleaning liquid to two groups of cleaning components 7 through the three-way pipe. A pumping and pressing piston 502 slides inside the infusion cavity. A circular arc sealing plate 503 that slides and blocks the inlet or outlet is connected to one side of the pumping and pressing piston 502. A pull rod 504 is rotatably connected between the plug 502 and the pull plate 201, and an extension block 508 connected to the suction and pressure piston 502 and a rotatably installed limit screw are arranged inside the limit cavity, and a limit block 505 is threadedly connected to the limit screw, and the limit block 505 is located between the extension block 508 and the suction and pressure piston 502. A limit rack 506 connected to the slider on the mounting frame 705 is slidably provided inside the limit cavity, and the limit rack 506 is meshed with a limit gear 507, and the limit gear 507 is connected to the limit screw through two mutually meshing bevel gears, a sprocket and a chain belt.

[0030] When the cover body 2 is in contact with the nasal resistance measuring instrument body 1, as the slider on the mounting frame 705 slides, the limit rack 506 follows the movement and drives the limit gear 507 to rotate, so that the limit screw drives the limit block 505 to move; when the pull plate 201 is pulled out, the suction and pressure piston 502 follows the movement until the limit block 505 and the extension block 508 are in contact. At this time, the pull rod 504 is rotated so that the suction and pressure piston 502 drives the arc sealing plate 503 to rotate around the pull rod 504, and the arc sealing plate 503 blocks the liquid inlet and becomes the liquid outlet. The cleaning liquid inside the liquid storage tank 5 enters the infusion cylinder 501. When the infusion cylinder 501 is full of cleaning liquid, the suction and pressure piston 502 is rotated again to reset the arc sealing plate 503, and the cleaning liquid inside the infusion cylinder 501 will enter the two cleaning components 7 through the liquid outlet. The nostrils of each patient are of different sizes, and the sizes of the areas of the olive head 401 covered by their nostrils are also different. The larger the nostrils, the larger the area of ​​the olive head 401 covered, and the larger the area of ​​the olive head 401 that needs to be cleaned. The quantitative component uses different amounts of cleaning liquid as the area of ​​the olive head 401 that needs to be cleaned changes. The larger the area of ​​the olive head 401 that needs to be cleaned, the more cleaning liquid is used, and the smaller the area of ​​the olive head 401 that needs to be cleaned, the less cleaning liquid is used, thereby maximizing the utilization of a certain amount of cleaning liquid.

[0031] Example 3: Based on Example 1, please refer to the attached Figure 1-Figure 4 As shown; A driving assembly 6 is provided on the nasal resistance measuring instrument body 1 and the cover body 2. The driving assembly 6 includes a follower gear ring 601 sleeved on the olive head 401. The two follower gear rings 601 are meshed with a central gear 602. The central gear 602 is provided with a plurality of blocks 603 distributed in a circle around the axis of the central gear 602. A cylindrical block 604 is rotatably installed at the lower end of the inner part of the cover body 2. The lower end of the cylindrical block 604 is provided with a plurality of slots distributed in a circle around the axis of the cylindrical block 604, and the slots and the blocks 603 are adapted to each other. A driving rack 605 located inside the cover body 2 is installed on the pull plate 201, and the driving rack 605 is meshed with a driving gear 606. A driving sprocket 607 is axially connected to both sides of the driving gear 606. The driving sprocket 607 and the swing sprocket 707 are connected by a chain. A driven gear 608 is meshed with the lower end of the driving gear 606. The driven gear 608 is connected to the cylindrical block 604 through two meshing bevel gears.

[0032] When the cover body 2 and the nasal resistance measuring instrument body 1 are in contact, the card slot and the card block 603 are engaged, and as the driving rack 605 drives the gear 606 to rotate, the active sprocket 607 follows the rotation, driving the swing sprocket 707 to rotate, and at the same time the driven gear 608 also follows the driving gear 606 to rotate, and drives the central gear 602 to rotate by driving the cylindrical block 604, so that the two olive heads 401 can rotate during cleaning, further improving the cleaning effect.

[0033] The specific operations are as follows: When using the nasal resistance measuring device, the medical staff will first insert the olive head 401 into the patient's nostril. As the olive head 401 goes deeper into the patient's nostril, the inclined surface of the olive head 401 contacts the inner wall of the nostril, and the olive head 401 blocks the patient's nostril. At this time, the medical staff manually rotates the friction wheel 406, and the friction wheel 406 drives the adjustment screw 404 to rotate, so that the adjustment piston 405 slides inside the adjustment chamber, and the gas inside the adjustment chamber is pressed into the two telescopic pneumatic rods 403, so that the telescopic pneumatic rods 403 are extended until the movable end of the telescopic pneumatic rods 403 contacts the outer wall of the patient's nostril, and the friction wheel 406 cannot rotate. Through the extension and shortening of the telescopic pneumatic rods 403, the area of ​​the patient's nostrils covered by the olive head 401 can be clearly determined. When the cover body 2 and the nose resistance measuring instrument body 1 are in contact, the movable end of the extrusion telescopic rod 708 slides on the inclined surface of the olive head 401. As the nose resistance measuring instrument body 1 drives the olive head 401 to go deeper into the cover body 2, the extrusion telescopic rod 708 is continuously squeezed, which drives the slider on the mounting frame 705 to slide and compresses the spring on the mounting frame 705 until the movable end of the extrusion telescopic rod 708 contacts the movable end of the telescopic gas pressure rod 403 and stops moving; the water pressure piston 709 moves following the slider on the mounting frame 705, and squeezes the oil inside the water storage pipeline 706 into the mounting chamber of the swing sprocket 707 through the water hose, the rotary joint 710 and the fixed water pipe 711, the spring inside the mounting chamber contracts, the lifting piston 712 moves, and the position of the lifting frame 713 is changed. At the same time, as the slider on the mounting frame 705 slides, the limit rack 506 moves and drives the limit gear 507 to rotate, so that the limit screw drives the limit block 505 to move; When the cover 2 is in contact with the body 1 of the nasal resistance measuring instrument, the pull plate 201 is pulled, and as the driving rack 605 drives the driving gear 606 to rotate, the active sprocket 607 rotates accordingly, driving the swing sprocket 707 to rotate. When the swing sprocket 707 rotates, it drives the sliding block 714 to move back and forth on the sliding frame through the transmission rod 715, so that the second nozzle 704 swings, and the sliding block 714 moves up and down with the middle end of the sliding frame as the center. When the sliding block 714 moves upward, due to the obstruction of the limiting plate 717, the second nozzle 704 is always aligned with the uppermost end of the inclined surface of the olive head 401. When the sliding block 714 moves downward, the second nozzle 704 04 As the sliding block 714 swings downward, the inclined surface of the olive head 401 is cleaned; at the same time, the suction and pressure piston 502 moves with the pull plate 201 until the limiting block 505 and the extension block 508 come into contact and stop. At this time, the pull rod 504 is rotated to make the suction and pressure piston 502 drive the arc sealing plate 503 to rotate around the pull rod 504, and the arc sealing plate 503 blocks the liquid inlet and turns to block the liquid outlet. The cleaning liquid inside the liquid storage tank 5 enters the infusion cylinder 501. When the infusion cylinder 501 is full of cleaning liquid, the suction and pressure piston 502 is rotated again to reset the arc sealing plate 503, and the cleaning liquid inside the infusion cylinder 501 will enter the two cleaning components 7 through the liquid outlet.

[0034] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A handheld nasal resistance measuring device that is easy to disinfect, comprising a nasal resistance measuring instrument body (1) and a cover body (2) adapted thereto, characterized in that: The nose resistance measuring instrument body (1) is provided with two sets of nose contact components (4) outside, and the nose contact components (4) include an olive head (401) and a straight tube (402) that are rotatably connected to each other, and a telescopic gas pressure rod (403) is provided on the opposite sides of the two olive heads (401); Two groups of cleaning components (7) are arranged inside the cover body (2) and are opposite to the two groups of nose contact components (4) one by one. Each group of cleaning components (7) comprises a water-blocking piston (701) adapted to the inner wall of the straight tube (402). A right-angle water pipe (702) is arranged on the water-blocking piston (701). Two first nozzles (703) facing the inner wall of the olive head (401) and the top of the olive head (401) are installed on the right-angle water pipe (702). The right-angle water pipe (702) is connected to a second nozzle (704) facing the inclined surface of the olive head (401) through a soft water pipe. The cleaning assembly (7) further comprises a mounting frame (705), a water storage pipeline (706) and a swing sprocket (707); A pull plate (201) is provided on one side of the cover body (2).

2. A handheld nasal resistance measuring device that is easy to disinfect according to claim 1, characterized in that: Two left and right detection channels (3) are arranged at the upper end of the interior of the nasal resistance measuring instrument body (1), and the two detection channels (3) and the two straight tubes (402) are connected in a one-to-one correspondence.

3. A handheld nasal resistance measuring device that is easy to disinfect according to claim 2, characterized in that: When the telescopic pneumatic rod (403) is extended or retracted, the movable end of the telescopic pneumatic rod (403) slides on the inclined surface of the olive head (401), an adjustment chamber is provided between the two detection channels (3), and an adjustment screw (404) is rotatably installed inside the adjustment chamber, and an adjustment piston (405) sliding inside the adjustment chamber is threadedly connected to the adjustment screw (404), and the adjustment chamber is connected to the two telescopic pneumatic rods (403) respectively through a three-way joint and an air hose, and the axis of the adjustment screw (404) is connected to a friction wheel (406) located outside the nasal resistance measuring instrument body (1).

4. The handheld nasal resistance measuring device that is easy to disinfect according to claim 3, characterized in that: The nasal resistance measuring instrument body (1) is provided with a liquid storage tank (5), and an output end of the liquid storage tank (5) is provided with a quantitative component, the quantitative component comprising an infusion cylinder (501), the infusion cylinder (501) having an infusion cavity and a limit cavity therein, the liquid inlet of the infusion cylinder (501) being located in the infusion cavity and connected to the liquid storage tank (5), the liquid outlet of the infusion cylinder (501) being located in the infusion cavity and connected to a three-way pipe, the liquid storage tank (5) providing cleaning liquid to two groups of cleaning components (7) via the three-way pipe, a suction piston (502) slidingly provided inside the infusion cavity, one side of the suction piston (502) being connected to a circular arc sealing plate (503) for slidingly sealing the liquid inlet or the liquid outlet, A pull rod (504) is rotatably connected between the suction and pressure piston (502) and the pull plate (201), an extension block (508) connected to the suction and pressure piston (502) and a rotatably installed limit screw are arranged inside the limit cavity, and a limit block (505) is threadedly connected to the limit screw, and the limit block (505) is located between the extension block (508) and the suction and pressure piston (502), and a limit rack (506) connected to a slider on the mounting frame (705) is slidably provided inside the limit cavity, and the limit rack (506) is meshed with a limit gear (507), and the limit gear (507) is connected to the limit screw through two mutually meshing bevel gears, a sprocket and a chain belt.

5. The handheld nasal resistance measuring device that is easy to disinfect according to claim 4, characterized in that: A slider connected to a spring slides on the placement frame (705), and an extrusion telescopic rod (708) with a built-in spring is installed on the side of the slider facing the water-blocking piston (701). A water-pressing piston (709) slides inside the water storage pipeline (706), and one end of the water-pressing piston (709) is connected to the slider via a connecting rod. A rotating joint (710) is provided at the axis of the swing sprocket (707), and a placement cavity and a placement groove are provided on both sides of the rotating joint (710). A fixed water pipe (711) is provided inside the placement cavity, and a lifting piston (712) slides on the fixed water pipe (711). A lifting frame (713) slides inside the placement groove. The lifting piston (712) and the lifting frame (713) are connected via a connecting rod. The fixed water pipe (711) is connected via a direct joint and a rotating joint (710). ) is connected at one end, the water storage pipeline (706) is connected at the other end through a water hose and a rotating joint (710), a spring is sleeved on the fixed water pipe (711), oil is filled between the water pressure piston (709) and the lifting piston (712), the second nozzle (704) is installed on the inner wall of the cover body (2) through a rotating frame, a sliding frame is provided on one side of the second nozzle (704), and a sliding block (714) slides on the sliding frame, a transmission rod (715) is rotatably connected between the sliding block (714) and the lifting frame (713), and a transmission telescopic rod (716) with a built-in spring is rotatably connected between the sliding block (714) and the second nozzle (704), and when the cover body (2) and the nasal resistance measuring instrument body (1) are in contact, the movable end of the extrusion telescopic rod (708) slides on the inclined surface of the olive head (401).

6. The handheld nasal resistance measuring device that is easy to disinfect according to claim 5, characterized in that: As the swing sprocket (707) rotates, the sliding block (714) moves up and down and back and forth with the middle end of the sliding frame as the center, and when the sliding block (714) is located at the middle end of the sliding frame, the second nozzle (704) faces the uppermost end of the inclined surface of the olive head (401), and a limiting plate (717) is provided above the second nozzle (704). When the second nozzle (704) faces the uppermost end of the inclined surface of the olive head (401), the second nozzle (704) and the limiting plate (717) are in contact.

7. The handheld nasal resistance measuring device that is easy to disinfect according to claim 6, characterized in that: The nasal resistance measuring instrument body (1) and the cover body (2) are provided with a driving assembly (6), the driving assembly (6) comprising a follower gear ring (601) sleeved on the olive head (401), the two follower gear rings (601) being meshed with a central gear (602), the central gear (602) being provided with a plurality of clamping blocks (603) distributed in a circle around the axis of the central gear (602), the lower end of the cover body (2) being rotatably mounted with a cylindrical block (604), the lower end of the cylindrical block (604) being provided with a plurality of clamping grooves distributed in a circle around the axis of the cylindrical block (604), and the clamping grooves and the clamping blocks (603) being matched with each other.

8. The handheld nasal resistance measuring device that is easy to disinfect according to claim 7, characterized in that: The pull plate (201) is provided with a driving rack (605) located inside the cover body (2); the driving rack (605) is meshed with a driving gear (606); driving sprockets (607) are axially connected to both sides of the driving gear (606); the driving sprocket (607) and the swing sprocket (707) are connected via a chain; a driven gear (608) is meshed at the lower end of the driving gear (606); the driven gear (608) is transmission-connected to the cylindrical block (604) via two meshing bevel gears.

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