Portable medical gas flow dynamic meter

Abstract

The utility model discloses a portable medical gas flow dynamic metering appearance belongs to medical instrument field, including organism and mounting seat, organism installs the top of mounting seat, and the lower middle part of mounting seat is equipped with round hole, and the lower round hole and organism are communicated, in the scheme, the protection cover is fixed below mounting seat, its inside not only accommodates worm, worm wheel, still reserves sufficient space for outer tube storage, drives worm rotation through the rotation knob, and worm engages worm wheel and drives rotating cylinder to rotate in the round hole of mounting seat, and the spiral groove of rotating cylinder outer wall cooperates with the limiting block of outer tube, under the direction of limiting groove, and outer tube can be along rotating cylinder axial steady retraction, and finally completely stores to the inside of protection cover, compared with outer tube exposed state, and the overall radial dimension of equipment after storage is compressed, need not extra occupy storage space, and it is easier to put into first-aid kit, diagnosis and treatment bag etc. portable container, satisfies the carrying demand of mobile scene such as outpatient service, ambulance etc.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to a portable medical gas flow dynamic meter. Background Technology

[0002] Dynamic measurement of the flow rate of medical gases (such as oxygen and compressed air) is an integral part of the clinical diagnosis and treatment process, and is related to the safety and effectiveness of procedures such as respiratory support and nebulization therapy.

[0003] In the prior art, such as Chinese patent "CN222617959U", a "portable gas flow metering device" is proposed, which includes a device body, with an inlet end and an outlet end for gas flow respectively provided on the bottom two sides of the device body, and a display for displaying data provided on the front side of the device body.

[0004] However, in the aforementioned patents, both the air inlet and outlet are fixed and exposed structures, which cannot be stored when the device is not in use. This design causes the air inlet and outlet to occupy additional storage space during the carrying process. At the same time, the exposed ports also increase the overall size of the device, making it easy for medical staff to hold it unsteadily when carrying or transferring it with one hand. This is especially true in mobile scenarios with limited space, such as ambulances and bedside clinics, where the convenience of carrying and placing the device decreases. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a portable medical gas flow dynamic meter to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A portable medical gas flow dynamic meter includes a body and a mounting base. The body is mounted on top of the mounting base. A circular hole is formed in the center of the lower part of the mounting base, and the circular hole communicates with the lower part of the body. A telescopic soft sleeve is installed in the center of the lower part of the body. The telescopic soft sleeve is located inside the circular hole. An outer cylinder is fixedly connected to one end of the telescopic soft sleeve. A rotating cylinder is rotatably connected inside the circular hole. The outer cylinder is slidably connected inside the rotating cylinder. A spiral groove is formed on the outer wall of the rotating cylinder.

[0010] Furthermore, a limiting groove is formed inside the mounting base, the limiting groove is connected to the circular hole, and a limiting block is fixedly connected to the outer wall of the outer cylinder. The limiting block is slidably connected to the limiting groove and the spiral groove.

[0011] Furthermore, an air inlet and an air outlet are respectively installed on both sides of the outer wall of the outer cylinder.

[0012] Furthermore, a worm gear is fixedly connected to the outer wall of one end of the rotating cylinder located outside the mounting base, and a protective cover is fixedly connected to the lower part of the mounting base.

[0013] Furthermore, a worm gear is rotatably connected inside the protective cover, the worm gear meshes with a worm wheel, and a knob is fixedly connected to one end of the worm gear located outside the protective cover.

[0014] Furthermore, a handle is installed on the outer side of the mounting base, and the upper end of the handle is fixedly connected to the outside of the machine body.

[0015] Furthermore, a display screen is installed on the top of the machine body.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] In this design, the protective cover is fixed below the mounting base. Its interior not only accommodates the worm gear and worm wheel but also provides ample space for storing the outer cylinder. By rotating the knob, the worm gear is driven to rotate, and the worm gear meshes with the worm wheel to drive the rotating cylinder to rotate within the circular hole of the mounting base. The spiral groove on the outer wall of the rotating cylinder cooperates with the limiting block of the outer cylinder. Guided by the limiting groove, the outer cylinder can smoothly retract along the axial direction of the rotating cylinder and finally be completely stored inside the protective cover. Compared with the exposed state of the outer cylinder, the overall radial dimension of the device is compressed after storage, eliminating the need for additional storage space. It is easier to put into portable containers such as first aid kits and medical kits, meeting the carrying needs of mobile scenarios such as clinics and ambulances. Attached Figure Description

[0019] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0021] Figure 3 This is a schematic diagram showing the positional relationship between the rotating cylinder and the limiting block in this utility model;

[0022] Figure 4 for Figure 2 Enlarged structural diagram of region A in the middle;

[0023] Figure 5 This is a schematic diagram showing the connection relationship between the outer cylinder and the rotating cylinder in this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Body; 11. Handle; 12. Display screen; 13. Mounting base; 14. Protective cover; 15. Worm gear; 16. Knob; 17. Round hole; 18. Limiting groove; 19. Telescopic soft sleeve; 2. Outer cylinder; 21. Air inlet; 210. Air outlet; 22. Limiting block; 23. Rotating cylinder; 24. Spiral groove; 25. Worm gear. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Please see Figures 1-5A portable medical gas flow dynamic meter includes a body 1 and a mounting base 13. The body 1 is mounted on top of the mounting base 13. A circular hole 17 is provided in the middle of the lower part of the mounting base 13, and the circular hole 17 is connected to the lower part of the body 1. A telescopic soft sleeve 19 is installed in the middle of the lower part of the body 1. The telescopic soft sleeve 19 is located inside the circular hole 17. An outer cylinder 2 is fixedly connected to one end of the telescopic soft sleeve 19. A rotating cylinder 23 is rotatably connected inside the circular hole 17. The outer cylinder 2 is slidably connected inside the rotating cylinder 23. A spiral groove 24 is provided on the outer wall of the rotating cylinder 23. A limiting groove 18 is provided inside the mounting base 13, and the limiting groove 18 is connected to the circular hole 17. A limiting block 22 is fixedly connected to the outer wall of the outer cylinder 2. The limiting block 22 is slidably connected to the limiting groove 18 and the spiral groove 24. An air inlet 21 and an air outlet 210 are respectively installed on both sides of the outer wall of the outer cylinder 2.

[0031] In this embodiment, the storage and adjustment of the outer cylinder 2 is achieved through the linkage structure of the rotating cylinder 23, the spiral groove 24, and the limiting block 22: the rotating cylinder 23 is rotatably connected to the inside of the circular hole 17 of the mounting base 13, and the spiral groove 24 on its outer wall slides in cooperation with the limiting block 22 fixed on the outer wall of the outer cylinder 2. The limiting block 22 is also embedded in the limiting groove 18 of the mounting base 13. When the outer cylinder 2 needs to be stored, medical staff do not need to use additional tools such as wrenches and screwdrivers. They only need to manually rotate the rotating cylinder 23. The spiral groove 24 will transmit axial force through the limiting block 22. Under the rotation restriction of the limiting block 22 by the limiting groove 18, the outer cylinder 2 can be smoothly retracted along the axial direction of the rotating cylinder 23 until it is completely stored inside the rotating cylinder 23 or reaches the preset storage position. The entire storage process only requires one person to operate with one hand. The steps are simple and easy to understand, which greatly reduces the operation threshold and is especially suitable for the need for quick equipment organization in clinical scenarios.

[0032] Example 2:

[0033] Please see Figures 1-5 A portable medical gas flow dynamic meter has a worm gear 25 fixedly connected to the outer wall of one end of the rotating cylinder 23 outside the mounting base 13. A protective cover 14 is fixedly connected to the lower part of the mounting base 13. A worm 15 is rotatably connected inside the protective cover 14. The worm 15 and the worm gear 25 mesh. A knob 16 is fixedly connected to one end of the worm 15 outside the protective cover 14. A handle 11 is installed on one side of the outer side of the mounting base 13. The upper end of the handle 11 is fixedly connected to the outside of the body 1. A display screen 12 is installed on the top of the body 1.

[0034] In this embodiment, a worm gear 25 is fixedly connected to the outer wall of one end of the rotating cylinder 23 located outside the mounting base 13. A worm 15 is rotatably connected inside the protective cover 14 below the mounting base 13, and the worm 15 meshes with the worm gear 25. A knob 16 is fixedly connected to one end of the worm 15 extending outside the protective cover 14. This worm-worm gear transmission structure has the characteristic of "reduction and torque amplification": when medical staff turn the knob 16, they do not need to apply excessive force, and the torque can be amplified by the worm 15 and transmitted to the worm gear 25, thereby driving the rotating cylinder 23 to rotate smoothly. Compared with directly manually turning the rotating cylinder 23, the design of the knob 16 not only increases the convenience of the operation point, but also makes the extension and retraction adjustment of the outer cylinder 2 more effortless through the optimization of the mechanical transmission ratio. At the same time, the self-locking nature of the worm 15 and worm gear 25 structure, that is, the worm gear 25 can only be driven by the worm 15 and cannot be transmitted otherwise, can ensure that the rotating cylinder 23 can stably maintain the current angle after being adjusted to the position, and avoid the outer cylinder 2 from shifting due to equipment vibration or accidental contact.

[0035] Working principle: Medical staff rotate the knob 16 installed at the end of the worm gear 15, which is rotatably connected to the inside of the protective cover 14. The protective cover 14 is fixed below the mounting base 13, which drives the worm gear 15 to rotate around its own axis. Since the worm gear 15 meshes with the worm wheel 25 fixed on the outer wall of the rotating cylinder 23, which is rotatably connected to the circular hole 17 of the mounting base 13, the rotational power of the worm gear 15 is converted into the circular motion of the worm wheel 25, which in turn drives the rotating cylinder 23 to rotate synchronously in the circular hole 17.

[0036] The outer wall of the rotating cylinder 23 is provided with a spiral groove 24. The limiting block 22 fixed on the outer wall of the outer cylinder 2 is simultaneously embedded in the spiral groove 24 and the limiting groove 18 inside the mounting base 13. The limiting groove 18 communicates with the round hole 17. When the rotating cylinder 23 rotates, the spiral groove 24 applies an axial force through the limiting block 22, while the limiting groove 18 restricts the limiting block 22 from rotating synchronously with the rotating cylinder 23, allowing it to slide axially along the limiting groove 18. Ultimately, this drives the outer cylinder 2 to stably extend and retract inside the rotating cylinder 23 until the air inlet 21 and air outlet 210 reach the position that is compatible with the external gas pipeline.

[0037] Stability adjustment guarantee: The worm gear 15-worm wheel 25 structure has a self-locking characteristic. After adjustment, the worm gear 15 can drive the worm wheel 25. Otherwise, it cannot drive in the reverse direction. This can prevent the outer cylinder 2 from shifting due to accidental rotation of the rotating cylinder 23, and ensure that the outer cylinder 2 remains stable during use.

[0038] External medical gases, such as oxygen and compressed air, enter the interior of the outer cylinder 2 through the air inlet 21 on the outer wall of the outer cylinder 2. They flow along the cavity of the outer cylinder 2 to the telescopic soft sleeve 19, which is fixedly connected to the outer cylinder 2. The telescopic soft sleeve 19 is installed in the middle of the lower part of the body 1, located in the round hole 17. Because the telescopic soft sleeve 19 has flexible sealing characteristics, it can smoothly introduce the gas into the metering module inside the body 1 without affecting the telescopic movement of the outer cylinder 2. After metering, the gas flows in the reverse direction along the original path and is delivered to the target medical equipment, such as a ventilator or nebulizer, through the air outlet 210 of the outer cylinder 2, thus completing the closed loop of gas flow.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A portable medical gas flow dynamic meter, comprising a body (1) and a mounting base (13), characterized in that: The body (1) is mounted above the mounting base (13). A circular hole (17) is provided in the middle of the lower part of the mounting base (13). The circular hole (17) is connected to the lower part of the body (1). A telescopic soft sleeve (19) is installed in the middle of the lower part of the body (1). The telescopic soft sleeve (19) is located inside the circular hole (17). An outer cylinder (2) is fixedly connected to one end of the telescopic soft sleeve (19). A rotating cylinder (23) is rotatably connected inside the circular hole (17). The outer cylinder (2) is slidably connected inside the rotating cylinder (23). A spiral groove (24) is provided on the outer wall of the rotating cylinder (23).

2. The portable medical gas flow dynamic meter according to claim 1, characterized in that: The mounting base (13) has a limiting groove (18) inside, which is connected to the circular hole (17). The outer wall of the outer cylinder (2) is fixedly connected to a limiting block (22), which is slidably connected to the limiting groove (18) and the spiral groove (24).

3. A portable medical gas flow dynamic meter according to claim 2, characterized in that: An air inlet (21) and an air outlet (210) are respectively installed on both sides of the outer wall of the outer cylinder (2).

4. A portable medical gas flow dynamic meter according to claim 3, characterized in that: A worm gear (25) is fixedly connected to the outer wall of one end of the rotating cylinder (23) located outside the mounting base (13), and a protective cover (14) is fixedly connected to the bottom of the mounting base (13).

5. A portable medical gas flow dynamic meter according to claim 4, characterized in that: The protective cover (14) is rotatably connected to a worm gear (15), which meshes with a worm wheel (25). A knob (16) is fixedly connected to one end of the worm gear (15) located outside the protective cover (14).

6. A portable medical gas flow dynamic meter according to claim 1, characterized in that: A handle (11) is installed on the outer side of the mounting base (13), and the upper end of the handle (11) is fixedly connected to the outside of the body (1).

7. A portable medical gas flow dynamic meter according to claim 1, characterized in that: A display screen (12) is installed on the top of the body (1).

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