Monitoring device for clinical internal medicine
By incorporating a safety lock and a bidirectional check valve, the design solves the problems of inconvenient operation and unstable connection of clinical internal medicine monitoring devices, achieving precise airflow control and reliable detection data, and improving the stability and accuracy of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN UNIV OF SCI & TECH
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-17
AI Technical Summary
Existing clinical internal medicine monitoring devices are inconvenient to operate, have unstable connections, and lack precise airflow control, which affects test results.
The design incorporates a safety latch and a bidirectional check valve to ensure a secure connection between the gas tube and the detector. The airflow can be reliably locked and unlocked by adjusting the sliding of the locking block with a knob, while the bidirectional check valve controls the unidirectional flow of gas.
It improves connection stability and airflow control precision, ensures continuous testing and data accuracy, reduces testing errors caused by connection problems, and enhances the ease of equipment maintenance.
Smart Images

Figure CN224125940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a monitoring device for clinical internal medicine. Background Technology
[0002] A wide variety of monitoring devices are commonly used in clinical internal medicine, covering the detection of multiple physiological systems to assist physicians in accurately diagnosing diseases, assessing the severity of conditions, and monitoring treatment effectiveness. These devices include, but are not limited to, electrocardiographs, blood pressure monitors, blood glucose meters, blood gas analyzers, and electroencephalograms (EEGs). They play a crucial role in their respective fields, providing important evidence for clinical diagnosis and treatment. Among them, pulmonary function testing devices, as one of the commonly used monitoring devices in clinical internal medicine, focus on assessing lung ventilation function and gas exchange capacity. Their test results have an irreplaceable role in the diagnosis and management of respiratory diseases.
[0003] A Chinese patent with publication number CN220655574U discloses a filter for a disposable pulmonary function testing device, including a testing instrument, a handle, an insertion port, and the filter. During operation, a protective cover is first placed over the end of the filter that the user's mouth contacts. A protrusion engages in a slot, and a locking block, under elastic force, engages at the through-hole, ensuring a stable cover. The filter with the protective cover is then inserted into the insertion port on the testing instrument's handle. During testing, the user's hand contacts the protective cover but not directly the filter, ensuring hygiene. During testing, the user presses the locking block to remove the obstruction between the protrusion and the slot, lifts the protective cover upwards, and then blows air into the filter, allowing the airflow to enter the testing instrument to assess lung function. However, this design requires pressing the locking block when installing and removing the protective cover, which may be difficult for patients with poor hand dexterity or those using it for the first time, potentially affecting the ease and efficiency of operation. In addition, the part of the filter tip that connects to the detector inside the socket is not protected, and in actual use, this part may still come into contact with external pollutants.
[0004] In response to the aforementioned technologies, a clinical internal medicine monitoring device is now provided that can eliminate the drawbacks of existing devices. Utility Model Content
[0005] The purpose of this invention is to provide a monitoring device for clinical internal medicine. By using this device, problems such as inconvenient operation, unstable connection, and inaccurate airflow control affecting test results can be solved.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a monitoring device for clinical internal medicine, including a detector, a display screen fixedly mounted on the detector, symmetrical handle slots on both sides of the detector, a trachea fixedly connected to one outer wall of the detector, a mouthpiece detachably connected to the other end of the trachea, a safety lock provided at the fixed connection between the trachea and the detector, and a male and female bidirectional check valve provided at the connection between the trachea and the mouthpiece.
[0007] The safety lock includes a lock frame with an irregular groove inside. Two locking blocks are slidably connected inside the irregular groove. A lead screw is rotatably connected to the inner walls on both sides of the lock frame. A knob is fixedly installed at one end of the lead screw that extends out of the lock frame. The lead screw has two threaded sections with opposite directions of rotation. The two locking blocks are screwed onto the two threaded sections of the lead screw respectively.
[0008] Preferably, the end of the air tube connected to the safety lock is screwed with an air tube connector.
[0009] Preferably, the male and female bidirectional check valve consists of a male head check valve and a female head check valve. One end of the male head check valve is screwed with a nozzle, and the other end of the male head check valve is snapped and fixed to the female head check valve. The other end of the female head check valve is screwed to one end of the air tube.
[0010] Preferably, both locking blocks have slots that fit properly into the air pipe connector.
[0011] Preferably, the locking block has symmetrically opened circular holes below the slot, and a reset spring is fixedly connected inside the circular holes.
[0012] Preferably, the two locking blocks are connected by a lead screw and a return spring.
[0013] Preferably, the mouthpiece is connected to the male and female bidirectional check valves, air pipes, and air pipe connectors in pairs.
[0014] Preferably, the end of the locking block away from the slot has a through hole that communicates with the air inlet interface of the detector.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model proposes a clinical internal medicine monitoring device that significantly improves connection stability through an innovative safety lock design. Its internal structure works in synergy, allowing the user to precisely control the sliding of the locking blocks by turning a knob, achieving reliable locking or convenient unlocking of the trachea and related components. This effectively eliminates the risk of accidental trachea dislodgement, ensuring continuous monitoring and accurate data. Simultaneously, the connecting components between the locking blocks enhance movement stability and controllability, reducing detection errors caused by connection problems. Furthermore, the trachea connector facilitates equipment maintenance and component replacement. This effectively solves the problems of unstable connections, difficulty in controlling gas flow, and inconvenient operation associated with traditional similar devices.
[0017] 2. The clinical internal medicine monitoring device proposed in this utility model has a unique structure with male and female bidirectional check valves to ensure unidirectional gas flow, effectively prevent leakage and backflow, ensure stable airflow transmission during detection, make the detection data more accurate and reliable, and help doctors accurately assess the patient's lung function. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the installation structure of the air tube, mouthpiece, and locking block of this utility model;
[0020] Figure 3 This is a schematic diagram of the safety lock structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the locking block, slot, and reset spring structure of this utility model.
[0022] In the diagram: 1. Detector; 10. Handle slot; 11. Display; 2. Air tube; 3. Mouthpiece; 4. Safety lock; 41. Lock frame; 410. Irregular groove; 42. Lock block; 43. Lead screw; 44. Knob; 20. Air tube connector; 5. Male and female bidirectional connector with check valve; 51. Male connector with check valve; 52. Female connector with check valve; 420. Slot; 4210. Round hole; 422. Return spring; 4220. Through hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0025] Combination Figures 1-4 A clinical internal medicine monitoring device includes a detector 1, on which a display 11 is fixedly mounted. The display 11 can intuitively display test data and related information, making it convenient for medical staff to obtain test results in a timely manner and helping to improve diagnostic efficiency. The detector 1 has symmetrical handle slots 10 on both sides of the display 11, which makes it easy for users to hold the detector 1, making the operation more stable and comfortable. A trachea 2 is fixedly connected to one outer wall of the detector 1. The other end of the trachea 2 is detachably connected to a mouthpiece 3. A safety lock 4 is provided at the fixed connection between the trachea 2 and the detector 1. The safety lock 4 can ensure that the connection between the trachea 2 and the detector 1 is stable and prevent the trachea 2 from falling off due to accidental pulling or other situations during the test, thus ensuring the continuity and accuracy of the test. A male and female bidirectional check valve 5 is provided at the connection between the trachea 2 and the mouthpiece 3, which can effectively control the flow of gas, prevent gas backflow, ensure the unidirectional flow of air during the test, and improve the reliability of the test data.
[0026] The safety lock 4 includes a lock frame 41 with a shaped groove 410 inside. Two locking blocks 42 are slidably connected in the shaped groove 410. A lead screw 43 is rotatably connected to the inner walls on both sides of the lock frame 41. A knob 44 is fixedly installed at one end of the lead screw 43 that extends out of the lock frame 41. The lead screw 43 has two threaded sections with opposite directions of rotation. The two locking blocks 42 are screwed onto the two threaded sections of the lead screw 43 respectively. By rotating the knob 44, the lead screw 43 can be rotated, thereby driving the two locking blocks 42 to slide in opposite directions in the shaped groove 410, thereby locking or unlocking the air pipe connector 20. The operation is convenient and the tightness of the lock can be flexibly adjusted.
[0027] One end of the air pipe 2 is connected to the safety lock 4 and is screwed with an air pipe connector 20, which facilitates the connection and disassembly of the air pipe 2 with other components, and is beneficial for the maintenance and replacement of parts of the equipment.
[0028] The male-female bidirectional check valve 5 consists of a male check valve 51 and a female check valve 52. One end of the male check valve 51 is screwed with a nozzle 3, and the other end of the male check valve 51 is snapped and fixed to the female check valve 52. The other end of the female check valve 52 is screwed to one end of the air tube 2. This structural design makes the connection of the male-female bidirectional check valve 5 tighter and more reliable. The male check valve 51 and the female check valve 52 work together to more accurately control the gas flow direction, effectively avoid gas leakage and backflow, and ensure the accuracy and safety of the detection.
[0029] Both locking blocks 42 have slots 420 that fit snugly into the air tube connector 20. The engagement of the slots 420 with the air tube connector 20 ensures a secure lock, preventing accidental loosening of the air tube 20 during use and further enhancing connection security. Symmetrical circular holes 4210 are located below the slots 420 of the locking blocks 42. A return spring 422 is fixedly connected within each hole 4210. The return spring 422 also helps maintain the stability of the locking blocks 42 under normal conditions, ensuring accurate engagement between the slots 420 and the air tube connector 20. The two locking blocks 42 are connected by a lead screw 43 and the return spring 422. The combined action of the lead screw 43 and the return spring 422 makes the movement of the locking blocks 42 more stable and controllable, achieving both precise locking and smooth unlocking when needed, thus improving the overall performance of the safety lock 4. The locking block 42 has a through hole 4220 at the end away from the slot 420, which is connected to the air inlet interface of the detector. The through hole 4220 allows gas to smoothly enter the air inlet of the detector 1 from the air pipe 2, ensuring that the transmission channel of the gas required for detection is unobstructed and helps to obtain accurate detection data.
[0030] The nozzle 3 is connected to the male and female bidirectional check valve 5, the air pipe 2, and the air pipe connector 20 in pairs, ensuring that the gas can flow smoothly throughout the system. It enters from the nozzle 3, passes through the male and female bidirectional check valve 5, the air pipe 2, and the air pipe connector 20, and enters the detector 1, ensuring the normal operation of the detection process, and also facilitating the assembly and debugging of the system.
[0031] Working Principle: During use, the patient blows air through the mouthpiece 3. The air enters the bidirectional check valve 5 through the mouthpiece 3. The male head check valve 51 and the female head check valve 52 work together to ensure unidirectional airflow to the trachea 2. The air in the trachea 2 is transmitted through the trachea connector 20, which engages with the slot 420 on the locking block 42. Rotating the knob 44 drives the lead screw 43 to rotate, causing the locking block 42 to slide within the irregular groove 410 to lock or unlock, making adjustment convenient and stable. The air then enters the detector 1 through the through hole 4220 of the locking block 42. The display 11 on the detector 1 shows the test data in real time. The unique connection between the safety lock 4 and the trachea connector 20, along with the precise airflow control of the bidirectional check valve 5, ensures stable and reliable testing.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A monitoring device for clinical internal medicine, comprising a detector (1), wherein a display (11) is fixedly mounted on the detector (1), and handle slots (10) are symmetrically opened on the detector (1) on both sides of the display (11), and a trachea (2) is fixedly connected to one outer wall of the detector (1), wherein a mouthpiece (3) is detachably connected to the other end of the trachea (2), characterized in that: The air tube (2) is provided with a safety lock (4) at the fixed connection between the air tube (2) and the detector (1), and the air tube (2) is provided with a male and female bidirectional check valve (5) at the connection between the air tube (2) and the mouthpiece (3). The safety lock (4) includes a lock frame (41), a groove (410) is opened in the lock frame (41), two locking blocks (42) are slidably connected in the groove (410), a screw rod (43) is rotatably connected on the inner walls of both sides of the lock frame (41), a knob (44) is fixedly installed at one end of the screw rod (43) that extends out of the lock frame (41), and two threaded sections with opposite directions are provided on the screw rod (43), and the two locking blocks (42) are respectively screwed onto the two threaded sections of the screw rod (43).
2. The clinical internal medicine monitoring device according to claim 1, characterized in that One end of the air tube (2) connected to the safety lock (4) is screwed with an air tube connector (20).
3. The clinical internal medicine monitoring device according to claim 1, characterized in that: The male and female bidirectional check valve (5) consists of a male head check valve (51) and a female head check valve (52). One end of the male head check valve (51) is screwed with a nozzle (3), and the other end of the male head check valve (51) is snapped and fixed on the female head check valve (52). The other end of the female head check valve (52) is screwed to one end of the air pipe (2).
4. The clinical internal medicine monitoring device according to claim 1, characterized in that: Both locking blocks (42) have slots (420) that fit properly into the air pipe connector (20).
5. A clinical internal medicine monitoring device according to claim 4, characterized in that: The locking block (42) has symmetrically opened round holes (4210) below the slot (420), and a return spring (422) is fixedly connected inside the round hole (4210).
6. The clinical internal medicine monitoring device according to claim 5, characterized in that The two locking blocks (42) are connected by a lead screw (43) and a return spring (422).
7. The clinical internal medicine monitoring device according to claim 2, characterized in that The mouthpiece (3) is connected to the male and female bidirectional check valve (5), the air pipe (2), and the air pipe connector (20) in pairs.
8. The clinical internal medicine monitoring device according to claim 4, characterized in that: The locking block (42) has a through hole (4220) at one end away from the slot (420) that communicates with the air inlet interface of the detector.
Citation Information
Patent Citations
Disposable filter tip for lung function instrument
CN220655574U