An electronic laryngoscope with adjustable adsorption force and an adsorption force adjusting method

Abstract

The present application relates to the adjustable adsorption force electronic laryngoscope, including hand-held part, the hand-held part is connected with detection tube, the detection tube is formed with detection channel and adsorption channel, the detection channel is provided with light source and acquisition camera, the adsorption channel is communicated with buffer air pipe, the buffer air pipe end is connected with hard tube, the hard tube is provided with movable air plug, the hard tube is provided with plug body away from the buffer air pipe, the plug body is provided with air hole and spring connected with movable air plug;Plug body and buffer air pipe are friction damping cooperation, and the deformation amount of spring caused by tension of movable air plug reaches 1 / 3-2 / 3, drives plug body to move;The adsorption pressure in the adsorption channel can be self-adapted multiple buffering, so that it is kept in a safe range, and the intelligent alarm mechanism based on hall induction principle is arranged, so that the operator has sufficient reaction time to adjust the pressure, greatly reduces the operation difficulty, and also greatly improves the safety performance level of electronic laryngoscope.

Description

Technical Field

[0001] This invention relates to the field of electronic laryngoscope technology, and more specifically, to an electronic laryngoscope with adjustable adsorption force and a method for adjusting the adsorption force. Background Technology

[0002] Because electronic laryngoscopes are lightweight, thin, and flexible, the examination range covers the nasal cavity, nasopharynx, oropharynx, hypopharynx, and larynx, and can even reach deep into the trachea to understand the condition of the trachea, providing a clearer basis for the inner and lower boundaries of laryngeal tumor lesions;

[0003] Most currently used electronic laryngoscopes do not have foreign body suction functions. The very few electronic laryngoscopes with foreign body suction functions often have difficulty in adaptively adjusting the suction force during setup. The manual adjustment method is not flexible enough, often resulting in situations where excessive suction can cause local damage to the body, while insufficient suction makes it difficult to remove foreign bodies. In particular, existing equipment cannot provide a reaction time for situations where the suction force is suddenly too high (such as a sudden increase in suction force caused by blockage of the suction port or a sudden increase in suction force caused by misoperation). This makes the operation completely dependent on the operator's experience, which greatly increases the difficulty of operating the equipment. There is a need for an electronic laryngoscope with adaptively adjustable suction force and a suction force adjustment method. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electronic laryngoscope with adjustable adsorption force and a method for adjusting adsorption force, in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] An adjustable adsorption force electronic laryngoscope is constructed, comprising a handheld part, a detection tube connected to the handheld part, a detection channel and an adsorption channel formed within the detection tube, a light source and a camera for acquisition are provided on the detection channel, a buffer air tube is connected to the adsorption channel, a rigid tube is connected to the end of the buffer air tube, a movable air plug is provided inside the rigid tube, a plug body is provided at the end of the rigid tube opposite to the buffer air tube, the plug body is provided with a vent hole and a spring connecting the movable air plug; the plug body and the buffer air tube are in frictional damping engagement, and the spring moves the plug body when the deformation caused by the tension of the movable air plug reaches 1 / 3-2 / 3; a magnet is provided on the plug body, and multiple Hall devices that sense the magnet are arranged along the length of the rigid tube; a processing unit is provided on the handheld part to receive signals from the multiple Hall devices, and the processing unit emits a corresponding preset alarm sound when it receives a signal from the Hall devices.

[0007] The adjustable adsorption force electronic laryngoscope of the present invention includes a non-locking reset motor at the end of the rigid tube, a winding reel connected to the movable end of the reset motor, a pull rope wound on the winding reel, and the pull rope connected to the plug body; the reset motor is electrically connected to and controlled by the processing unit.

[0008] The adjustable suction force electronic laryngoscope of the present invention includes a torque sensor connected to the movable end of the reset motor via a first coupling, and the end of the torque sensor away from the reset motor connected to the winding reel via a second coupling. The torque sensor is electrically connected to the processing unit. If the torque sensor data exceeds the normal threshold during the traction reset of the plug, a fault is identified and maintenance is required.

[0009] The adjustable suction force electronic laryngoscope of the present invention includes a connecting rod on the outer surface of the handheld part, a C-shaped claw at the end of the connecting rod for engaging the rigid tube, multiple electrical connectors on the C-shaped claw, and electrical sockets on the rigid tube for engaging with the electrical connectors. The electrical connectors are electrically connected to the processing unit, and the multiple electrical sockets are electrically connected to the reset motor, the Hall effect device, and the torque sensor in a corresponding manner.

[0010] The adjustable adsorption force electronic laryngoscope of the present invention comprises a plurality of electrical connectors arranged laterally and forming a plane that divides the C-shaped claws in two equal parts.

[0011] The adjustable adsorption force electronic laryngoscope of the present invention includes an L-shaped connector on the adsorption channel for connecting to the buffer air tube.

[0012] The adjustable adsorption force electronic laryngoscope of the present invention is wherein the connection point between the adsorption channel and the buffer air tube is located at one end near the handheld part.

[0013] A method for adjusting the adsorption force of an adjustable adsorption force electronic laryngoscope, applied to the aforementioned adjustable adsorption force electronic laryngoscope, is implemented as follows:

[0014] A buffer gas tube is used to connect to the existing adsorption channel, and a rigid tube is connected to one end of the buffer gas tube. A movable gas plug, a spring and a plug body are installed in sequence inside the rigid tube.

[0015] When air is drawn from the adsorption channel and the negative pressure inside the adsorption channel is used to adsorb dirt in the human trachea, if the negative pressure inside the adsorption channel increases to the first trigger value range, the movable air plug will move along the rigid tube and drive the spring to stretch, thus buffering the negative pressure inside the adsorption channel.

[0016] If the negative pressure inside the adsorption channel continues to increase to the second trigger value range, causing the spring deformation to reach 1 / 3-2 / 3, the spring will pull the plug to move along the rigid tube, thereby allowing the movable air plug to move further to buffer the negative pressure inside the adsorption channel a second time, so that the air pressure inside the adsorption channel is maintained within a safe value range.

[0017] When the plug moves, it triggers the corresponding Hall effect device. After receiving the signal from the Hall effect device, the processing unit emits a corresponding alarm tone to remind the operator.

[0018] The beneficial effects of this invention are as follows: A buffer tube is used to connect to the existing adsorption channel, and a rigid tube is connected to one end of the buffer tube. A movable air plug, a spring, and a plug body are sequentially connected inside the rigid tube. When air is drawn into the adsorption channel to adsorb impurities from the human trachea using the negative pressure inside the adsorption channel, if the negative pressure inside the adsorption channel increases to a first trigger value range, the movable air plug will move along the rigid tube and stretch the spring, buffering the negative pressure inside the adsorption channel. If the negative pressure inside the adsorption channel continues to increase to a second trigger value range, causing the spring deformation to reach 1 / 3-2 / 3, the spring will pull the plug body along the rigid tube, thereby allowing the movable air plug to move. The movable air plug can further buffer the negative pressure in the adsorption channel, maintaining the air pressure within the adsorption channel within a safe range. When the plug moves, it triggers a corresponding Hall effect device. Upon receiving the signal from the Hall effect device, the processing unit emits a corresponding alarm tone to alert the operator. By applying the method of this application, the adsorption pressure in the adsorption channel can be adaptively buffered multiple times to maintain it within a safe range. At the same time, an intelligent alarm mechanism based on the Hall effect sensing principle is set up, giving the operator sufficient reaction time to adjust the pressure, greatly reducing the difficulty of operation, and also significantly improving the safety performance level of the electronic laryngoscope. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0020] Figure 1 This is a schematic diagram of the structure of the adjustable adsorption force electronic laryngoscope according to a preferred embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of the rigid tube of an electronic laryngoscope with adjustable adsorption force according to a preferred embodiment of the present invention.

[0022] Figure 3 This is a block diagram illustrating the principle of an adjustable adsorption force electronic laryngoscope according to a preferred embodiment of the present invention.

[0023] Figure 4 This is a flowchart of the method for adjusting the adsorption force of an adjustable electronic laryngoscope according to a preferred embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0025] The preferred embodiment of the present invention is an electronic laryngoscope with adjustable adsorption force, such as... Figure 1 As shown, see also Figure 2 and Figure 3 The device includes a handheld part 1, a detection tube 2 connected to the handheld part 1, a detection channel 20 and an adsorption channel 21 formed inside the detection tube 2, a light source and a camera for acquisition are provided on the detection channel, a buffer air tube 3 is connected to the adsorption channel, a rigid tube 4 is connected to the end of the buffer air tube 3, a movable air plug 40 is provided inside the rigid tube 4, a plug body 41 is provided at the end of the rigid tube 4 away from the buffer air tube 3, a vent hole 410 and a spring 42 connected to the movable air plug 40 are provided on the plug body 41; the plug body 41 and the buffer air tube 3 are in friction damping cooperation, and when the deformation of the spring 42 caused by the tension of the movable air plug 40 reaches 1 / 3-2 / 3, it drives the plug body 41 to move; a magnet 411 is provided on the plug body 41, and multiple Hall devices 43 with sensing magnets are arranged along the length direction on the rigid tube 4; a processing unit 10 is provided on the handheld part 1 to receive signals from multiple Hall devices, and the processing unit 10 emits a corresponding set alarm sound when it receives a signal from the Hall device 43.

[0026] A buffer gas tube 3 is used to connect to the existing adsorption channel, and a rigid tube 4 is connected to one end of the buffer gas tube 3. A movable gas plug 40, a spring 42 and a plug body 41 are connected in sequence inside the rigid tube 4.

[0027] When the adsorption channel is evacuated and the negative pressure inside the adsorption channel is used to adsorb dirt in the human trachea, if the negative pressure inside the adsorption channel increases to the first trigger value range, the movable air plug 40 will move along the rigid tube 4 and drive the spring 42 to stretch, thus buffering the negative pressure inside the adsorption channel.

[0028] If the negative pressure inside the adsorption channel continues to increase to the second trigger value range, causing the deformation of the spring 42 to reach 1 / 3-2 / 3, the spring 42 will pull the plug 41 to move along the rigid tube 4, thereby allowing the movable air plug 40 to move further to buffer the negative pressure inside the adsorption channel a second time, so that the air pressure inside the adsorption channel is maintained within a safe value range.

[0029] When the plug 41 moves, it will trigger the corresponding Hall device 43. After receiving the signal from the Hall device 43, the processing unit 10 will issue a corresponding alarm sound to remind the operator.

[0030] By applying the method of this application, the adsorption pressure in the adsorption channel can be adaptively buffered multiple times to keep it within a safe range. At the same time, an intelligent alarm mechanism based on the Hall effect sensing principle is set up, which gives the operator sufficient reaction time to adjust the pressure, greatly reducing the difficulty of operation and significantly improving the safety performance level of the electronic laryngoscope.

[0031] Preferably, the end of the rigid tube 4 is provided with a non-self-locking reset motor 5, the movable end of the reset motor 5 is connected to a winding wheel 6, a pull rope 60 is wound on the winding wheel 6, and the pull rope 60 is connected to the plug body 41; the reset motor 5 is electrically connected to and controlled by the processing unit 10.

[0032] When the plug body 41 needs to be reset, the processing unit 10 controls the reset motor 5 to rotate, and the pull rope 60 pulls the plug body 41 back to the initial position.

[0033] When the plug body 41 moves in a buffered manner, the non-self-locking performance of the reset motor allows the pull rope 60 to be pulled out of the winding reel 6 with almost no resistance.

[0034] Preferably, the movable end of the reset motor 5 is connected to a torque sensor 51 via a first coupling 50. The end of the torque sensor 51 facing away from the reset motor 5 is connected to the winding reel 6 via a second coupling 52. The torque sensor 51 is electrically connected to the processing unit 10. If the data of the torque sensor 51 exceeds the normal threshold (the standard range measured under normal operation) when the plug 41 is pulled and reset, it is determined that there is a fault and maintenance is required.

[0035] When the plug 41 is pulled and reset, there is no negative pressure in the adsorption channel. If the value detected by the torque sensor 51 is abnormal, the friction between the plug 41 and the rigid tube 4 will change. This change may increase, for example, due to the entry of dust or other impurities, or it may decrease, for example, due to a certain degree of wear. In either case, the secondary buffering effect will be worse, so maintenance is required.

[0036] It should be noted that using a reset motor will increase the weight of the handheld part to some extent, but since it does not require a high-power motor and a micro motor is sufficient, the actual increase in weight is small and has little impact on short-term operation. Of course, it is also possible to use a method without a reset motor and manually pull the cord to reset the plug, which can also achieve the reset operation, but the torque sensor function mentioned above to detect whether the reset force is normal will not be available.

[0037] Preferably, a connecting rod 7 is provided on the outer surface of the handheld part 1, and a C-shaped claw 70 for engaging a rigid tube is provided at the end of the connecting rod 7. The C-shaped claw 70 is provided with multiple electrical connectors 71, and the rigid tube 4 is provided with electrical sockets 44 that mate with the electrical connectors 71. The electrical connectors 71 are electrically connected to the processing unit 10, and the multiple electrical sockets 44 are electrically connected to the reset motor 5, the Hall effect device 43, and the torque sensor 51 in a one-to-one correspondence.

[0038] The electrical connection is achieved by plugging in the electrical connector 71 and the battery socket 44, which also serves as a positioning function. During installation, the rigid tube 4 can be directly snapped onto the C-type claw 70 under the positioning function to complete the assembly. It is easy to assemble and disassemble and has good reliability.

[0039] Preferably, multiple electrical connectors 71 are arranged horizontally to form a planar bisecting C-shaped claw 70, and an L-shaped connector 8 for connecting a buffer gas tube is provided on the adsorption channel. The connection point between the adsorption channel and the buffer gas tube is located at one end near the handheld part for easy connection.

[0040] A method for adjusting the adsorption force of an adjustable adsorption force electronic laryngoscope, applied to the aforementioned adjustable adsorption force electronic laryngoscope, such as... Figure 4 As shown, its implementation method is as follows:

[0041] S01: A buffer gas tube is used to connect to the existing adsorption channel, and a rigid tube is connected to one end of the buffer gas tube. A movable gas plug, a spring and a plug body are connected in sequence inside the rigid tube.

[0042] S02: When the adsorption channel is evacuated and the negative pressure inside the adsorption channel is used to adsorb dirt in the human trachea, if the negative pressure inside the adsorption channel increases to the first trigger value range, the movable air plug will move along the rigid tube and drive the spring to stretch, thus buffering the negative pressure inside the adsorption channel.

[0043] S03: If the negative pressure inside the adsorption channel continues to increase to the second trigger value range, causing the spring deformation to reach 1 / 3-2 / 3, the spring will pull the plug body to move along the rigid tube, thereby allowing the movable air plug to move further to buffer the negative pressure inside the adsorption channel a second time, so that the air pressure inside the adsorption channel is maintained within a safe value range.

[0044] S04: When the plug moves, it will trigger the corresponding Hall device. After receiving the Hall device signal, the processing unit will issue the corresponding set alarm sound to remind the operator.

[0045] By applying the method of this application, the adsorption pressure in the adsorption channel can be adaptively buffered multiple times to keep it within a safe range. At the same time, an intelligent alarm mechanism based on the Hall effect sensing principle is set up, which gives the operator sufficient reaction time to adjust the pressure, greatly reducing the difficulty of operation and significantly improving the safety performance level of the electronic laryngoscope.

[0046] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electronic laryngoscope with adjustable adsorption force, comprising a hand-held part, a detection tube is connected to the hand-held part, a detection channel and an adsorption channel are formed in the detection tube, a light source and a collection camera are arranged on the detection channel, characterized in that, The adsorption channel is connected with a buffer air pipe, the end of the buffer air pipe is connected with a hard pipe, the hard pipe is provided with a movable air plug, the end of the hard pipe away from the buffer air pipe is provided with a plug body, the plug body is provided with a gas permeable hole and a spring connected with the movable air plug; the plug body is in friction damping cooperation with the buffer air pipe, and the spring is deformed by 1 / 3-2 / 3 when the deformation amount caused by the pulling force of the movable air plug drives the plug body to move; the plug body is provided with a magnet, and the hard pipe is provided with a plurality of Hall devices in the length direction and inducting the magnet; the handheld part is provided with a processing unit receiving signals of the plurality of Hall devices, and the processing unit sends a corresponding set alarm sound when receiving the Hall device signal.

2. The electronic laryngoscope according to claim 1, wherein The end of the hard pipe is provided with a non-self-locking reset motor, the movable end of the reset motor is connected with a winding wheel, the winding wheel is provided with a pull rope, and the pull rope is connected with the plug body; the reset motor is electrically connected with the processing unit and is controlled by the processing unit.

3. The electronic laryngoscope of claim 2, wherein, The movable end of the reset motor is connected with a torsion sensor through a first coupling, one end of the torsion sensor away from the reset motor is connected with the winding wheel through a second coupling; the torsion sensor is electrically connected with the processing unit, and if the data of the torsion sensor exceeds the normal threshold value when the plug body is pulled back, it is determined that there is a fault and maintenance is needed.

4. The electronic laryngoscope according to claim 3, wherein The outer surface of the handheld part is provided with a connecting rod, the end of the connecting rod is provided with a C-shaped clamping claw clamping the hard pipe, the C-shaped clamping claw is provided with a plurality of electrical connectors, and the hard pipe is provided with an electrical socket matched with the electrical connector; the electrical connector is electrically connected with the processing unit, and a plurality of electrical sockets are electrically connected with the reset motor, the Hall device and the torsion sensor one by one.

5. The electronic laryngoscope of claim 4, wherein the suction force adjustment unit comprises a suction force adjustment knob. The plurality of electrical connectors are arranged transversely and form a plane bisecting the C-shaped clamping claw.

6. The electronic laryngoscope with adjustable adsorbing force according to any one of claims 1-5, characterized in that, The adsorption channel is provided with an L-shaped joint connected with the buffer air pipe.

7. The electronic laryngoscope of any one of claims 1 to 5, wherein, The connection point of the adsorption channel and the buffer air pipe is located near the end of the handheld part.

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