Visual sputum removal device based on ultrasound guidance

Abstract

The present invention relates to the technical field of medical devices, and specifically to a visualized expectoration instrument based on ultrasound guidance, comprising a handle, an ultrasonic probe disposed at the first end of the handle, a vibration unit disposed on the handle, and an external visualization unit, wherein the vibration unit comprises an annular electromagnet fixedly connected to the handle and an annular iron core slidably connected to the handle, a first elastic member is disposed between the annular electromagnet and the annular iron core to elastically connect the annular iron core to the annular electromagnet, the visualization unit comprises a controller and a display, the controller is electrically connected to the annular electromagnet for controlling the frequency and magnitude of the pulse current flowing through the annular electromagnet, and the display is electrically connected to the ultrasonic probe for displaying the detection status of the ultrasonic probe. This solution can more intuitively observe and accurately locate the position of sputum, improve the efficiency of expectoration, reduce the number of expectoration times and alleviate the pain of patients, and is conducive to the rapid recovery of patients.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a visualized expectorant based on ultrasound guidance. Background Art

[0002] After surgery, thoracic surgery patients cannot form a strong cough due to the viscosity of sputum and the pain of chest wounds. Therefore, the sputum in the respiratory tract, lungs and other places of the patients cannot be effectively expelled by strong spontaneous coughing. Excessive accumulation of sputum in the respiratory tract, lungs and other places can cause pulmonary complications such as chest tightness, dyspnea, atelectasis, respiratory failure, etc. Therefore, such patients need to use a sputum expeller to expel sputum. However, during use, the existing external sputum expellers mostly rely on the experience of medical staff, chest and lung imaging data, and lung auscultation to roughly determine the location of sputum and then perform external sputum expulsion. The sputum expulsion accuracy is not very good, which is not conducive to the patient's effective sputum expulsion, increases the number of sputum expulsions and the patient's pain, and is not conducive to the patient's rapid recovery. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a visualized expectorant based on ultrasound guidance to achieve accurate positioning and expectoration of sputum in a patient's body.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a visualized sputum removal instrument based on ultrasound guidance, including a handle, an ultrasonic detection head arranged at the first end of the handle, a vibration part arranged on the handle and an external visualization part, the vibration part includes an annular electromagnet fixedly connected to the handle and an annular iron core slidably connected to the handle, a first elastic member is arranged between the annular electromagnet and the annular iron core to elastically connect the annular iron core to the annular electromagnet, the visualization part includes a controller and a display, the controller is electrically connected to the annular electromagnet for controlling the frequency and size of the pulse current flowing through the annular electromagnet, and the display is electrically connected to the ultrasonic detection head for displaying the detection status of the ultrasonic detection head.

[0005] In the above scheme, the position of sputum is detected by an ultrasonic detection head and displayed on a display. When sputum is observed on the display, the operating controller controls the size and frequency of the pulse current passed into the annular electromagnet. With the cooperation of the first elastic member, the annular electromagnet drives the annular iron core to slide back and forth on the handle to pat the patient's body surface where the sputum is, thereby loosening the sputum in the patient's body, which is beneficial for the patient to expel the sputum in the body by coughing. Since an ultrasonic detection head and a display are provided, the position of the sputum can be observed and accurately located more intuitively, thereby improving the efficiency of sputum discharge, reducing the number of sputum discharges and alleviating the patient's pain, which is beneficial for the patient to recover quickly.

[0006] Furthermore, a mounting hole is provided at the first end of the handle, and the ultrasonic detection head is arranged in the mounting hole and fixedly connected to the handle.

[0007] Furthermore, the handle is provided with a fluid replenishment mechanism, which includes a fluid storage tank arranged at the second end of the handle, a liquid flow channel arranged in the handle, a cut-off unit for controlling the on / off of the liquid flow channel, and a driving unit for driving the flow of liquid in the liquid flow channel, the first end of the liquid flow channel is connected to the inner cavity of the fluid storage tank, the second end of the liquid flow channel passes through the second end of the handle, and the cut-off unit includes a first cross channel arranged along the radial direction of the handle and cross-connected with the liquid flow channel, and a first sliding column slidably connected to the first cross channel, the diameter of the first sliding column is larger than the inner diameter of the liquid flow channel, the first cross channel is a blind hole, the middle part of the first sliding column is set to have a diameter smaller than the detail of other parts of the first sliding column, a second elastic member is arranged between the first sliding column and the blind end of the first cross channel so that the first sliding column blocks the liquid flow channel and makes the first end of the first sliding column extend out of the handle, and the driving unit includes a first cross channel arranged along the radial direction of the handle The cam is provided with a second cross channel, a second sliding column slidably connected to the second cross channel, and an elastic tube arranged in the liquid flow channel corresponding to the second cross channel, the second cross channel is arranged in the handle between the annular electromagnet and the annular iron core, the first end of the second cross channel is communicated with the external space of the handle, the second end of the second cross channel is communicated with the liquid flow channel, a third elastic member is arranged in the second cross channel so that the first end of the second sliding column extends out of the second cross channel, the end face of the first end of the second sliding column is arranged as an inclined surface inclined downward toward the handle, the elastic tube is arranged coaxially with the liquid flow channel, the outer wall of the elastic tube is attached to the inner wall of the liquid flow channel, the outer wall of the elastic tube away from the second cross channel is fixedly connected to the inner wall of the liquid flow channel, the first end of the liquid flow channel is provided with a first one-way valve that only allows fluid to enter the liquid flow channel, and the second end of the liquid flow channel is provided with a second one-way valve that only allows fluid to flow out of the liquid flow channel.

[0008] In order to make the image in the display clearer, it is necessary to apply a coupling agent for ultrasonic detection between the ultrasonic probe and the patient's skin. In the above scheme, the coupling agent is filled in the liquid storage tank. At this time, the first slide column blocks the liquid flow channel under the elastic force of the second elastic member. The patient lies flat, holds the handle so that the first end of the handle is facing downward and presses the first slide column so that the details on the first slide column are aligned with the liquid flow channel. The coupling agent in the liquid storage tank flows to the first end face of the handle through the liquid flow channel under the action of gravity. After applying the coupling agent on the patient's skin, the ultrasonic probe is pressed against the patient's skin and the handle is moved to find the sputum position. The detection situation of the ultrasonic probe is displayed on the display screen in real time. After finding the sputum position, the patient sits up, and the handle is placed horizontally at this time. The coupling agent in the liquid storage tank cannot automatically flow to the first end of the handle. The controller is operated to pass a pulse current into the annular electromagnet so that the annular iron core slides back and forth and slaps the patient's body to loosen the sputum. During the process of the annular iron core repeatedly sliding on the handle to pat the patient, the handle can be moved to track the position of sputum. When the annular iron core slides, the annular iron core repeatedly squeezes the inclined surface of the first end of the second sliding column. With the cooperation of the third elastic member, the second sliding column slides back and forth in the second horizontal channel. The second end of the second sliding column slides back and forth to squeeze the elastic tube to continuously open and close the elastic tube. With the cooperation of the first one-way valve and the second one-way valve, the coupling agent in the liquid storage tank continuously flows to the first end of the handle to fill the space between the ultrasonic detection head and the patient's skin. When the coupling agent does not need to flow out, stop pressing the first sliding column. Under the elastic force of the second elastic member, the first sliding column slides to block the liquid flow path.

[0009] Furthermore, the first elastic member is a first spring, the first spring is sleeved outside the handle, one end of the first spring is fixedly connected to the annular electromagnet, and the other end of the first spring is fixedly connected to the annular iron core.

[0010] Furthermore, the second elastic member is a second spring, the second spring is horizontally arranged, one end of the second spring is fixedly connected to the second end of the first sliding column, and the other end of the second spring is fixedly connected to the blind end of the first cross track.

[0011] Further, the second cross channel is a stepped hole, the first end of the second cross channel is a large hole section, the second end of the second cross channel is a small hole section, the second slide column is a stepped shaft slidably matched with the second cross channel, the second slide column includes a large diameter section and a small diameter section, the third elastic member is a third spring, the third spring is arranged in the large hole section, the third spring is sleeved on the small diameter section of the second slide column, one end of the third spring is fixedly connected to the end face of the large diameter section of the second slide column, and the other end of the third spring is fixedly connected to the bottom of the large hole section of the second cross channel.

[0012] Furthermore, in order to enable the elastic tube to rebound quickly following the movement of the second sliding column, the second end of the second sliding column is fixedly connected to the elastic tube.

[0013] Furthermore, the handle is provided with a shell covering the annular electromagnet and the annular iron core.

[0014] Compared with the existing method of roughly determining the location of sputum by relying on the experience of medical staff, chest and lung imaging data and lung auscultation, and then performing external sputum removal, the present invention has at least the following beneficial effects:

[0015] 1. The present invention can intuitively display and accurately locate the position of sputum in the patient's body through the cooperation of an ultrasonic detection head and a display, thereby improving the efficiency of sputum discharge, reducing the number of sputum discharges and alleviating the patient's pain, and is conducive to the patient's rapid recovery.

[0016] 2. The present invention can add coupling agent to the ultrasound probe at any time while vibrating to expel sputum, so that the tiny gap between the ultrasound probe and the patient's skin is completely filled with the coupling agent, avoiding the tiny gap from affecting the penetration of ultrasound, and is more conducive to improving the clarity of imaging. At the same time, the coupling agent moistens the skin to reduce the acoustic impedance difference between the probe and the skin, which is conducive to the sliding of the ultrasound probe and reduces the wear on the ultrasound probe.

[0017] 3. The coupling agent in the present invention passes through the handle, which can take away the heat generated by the sliding friction between the annular iron core and the handle, preventing the handle from being overheated, and can heat the coupling agent to make it closer to the human body temperature, thereby improving the patient's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of the present invention in a usage state.

[0020] Figure 2 for Figure 1 Enlarged view of part A in .

[0021] Figure 3 It is a structural schematic diagram of the present invention in another use state.

[0022] Figure 4 for Figure 3 Enlarged view of part B in .

[0023] The meanings of the symbols in the accompanying drawings are:

[0024] Handle 10, mounting hole 101, liquid storage tank 102, liquid flow channel 103, ultrasonic probe 20, first cable 201, annular electromagnet 301, annular core 302, first spring 303, second cable 304, first cross channel 401, first slide column 402, detail 4021, second spring 403, second cross channel 404, second slide column 405, third spring 406, elastic tube 407, first one-way valve 408, second one-way valve 409, housing 50. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] The ultrasound-guided visual expectoration device of this embodiment is as follows: Figures 1 to 4 As shown, it includes a handle 10, an ultrasonic probe 20 arranged at the first end of the handle 10, a vibration part arranged on the handle 10 and an external visualization part, the vibration part includes an annular electromagnet 301 fixedly connected to the handle 10 and an annular iron core 302 slidably connected to the handle 10, a first elastic member is arranged between the annular electromagnet 301 and the annular iron core 302 to elastically connect the annular iron core 302 to the annular electromagnet 301, the visualization part includes a controller (not shown) and a display (not shown), the controller is electrically connected to the annular electromagnet 301 through a second cable 304 for controlling the frequency and size of the pulse current flowing through the annular electromagnet 301, and the display is electrically connected to the ultrasonic probe 20 through a first cable 201 for displaying the detection status of the ultrasonic probe 20.

[0028] like Figure 1The first end of the handle 10 is provided with a mounting hole 101, and the ultrasonic probe 20 is arranged in the mounting hole 101 and fixedly connected to the handle 10. Specifically, the ultrasonic probe 20 can be fixed to the handle 10 by plugging, snapping, etc., and the first cable 201 passes through the handle 10 to electrically connect the ultrasonic probe 20 to the display. The first elastic member is a first spring 303, which is sleeved outside the handle 10, one end of the first spring 303 is fixedly connected to the annular electromagnet 301, and the other end of the first spring 303 is fixedly connected to the annular core 302. A rubber layer is applied on the end surface of the annular core 302 that contacts the patient's skin.

[0029] The handle 10 is provided with a shell 50 covering the annular electromagnet 301 and the annular iron core 302, and the handle 10 is also provided with a liquid replenishing mechanism, which includes a liquid storage tank 102 arranged at the second end of the handle 10, a liquid flow channel 103 arranged in the handle 10, a cut-off unit for controlling the on / off of the liquid flow channel 103, and a driving unit for driving the flow of liquid in the liquid flow channel 103.

[0030] The first end of the liquid flow channel 103 is connected to the inner cavity of the liquid storage tank 102, and the second end of the liquid flow channel 103 passes through the second end of the handle 10. The intercepting unit includes a first cross channel 401 arranged along the radial direction of the handle 10 and cross-connected with the liquid flow channel 103, and a first sliding column 402 slidably connected to the first cross channel 401. The diameter of the first sliding column 402 is larger than the inner diameter of the liquid flow channel 103. The axis of the first sliding column 402 is coplanar with the axis of the liquid flow channel 103. The first cross channel 401 is a blind hole. The first sliding column 402 The middle part is set as a detail 4021 with a diameter smaller than that of other parts of the first sliding column 402, and a second elastic member is set between the first sliding column 402 and the blind end of the first cross channel 401 so that the first sliding column 402 blocks the liquid flow channel 103 and makes the first end of the first sliding column 402 extend out of the handle 10. Specifically, the second elastic member is a second spring 403, and the second spring 403 is horizontally arranged. One end of the second spring 403 is fixedly connected to the second end of the first sliding column 402, and the other end of the second spring 403 is fixedly connected to the blind end of the first cross channel 401.

[0031] The driving unit includes a second transverse channel 404 arranged along the radial direction of the handle 10 , a second sliding column 405 slidably connected to the second transverse channel 404 , and an elastic tube 407 arranged in the liquid flow channel 103 corresponding to the second transverse channel 404 .

[0032] The second cross channel 404 is arranged in the handle 10 between the annular electromagnet 301 and the annular core 302, the first end of the second cross channel 404 is communicated with the external space of the handle 10, the second end of the second cross channel 404 is communicated with the liquid flow channel 103, a third elastic member is arranged in the second cross channel 404 so that the first end of the second slide column 405 extends out of the second cross channel 404, and the end surface of the first end of the second slide column 405 is arranged as an inclined surface inclined downward toward the direction close to the handle 10, specifically, the second cross channel 404 is a step The first end of the second cross channel 404 is a large hole section, the second end of the second cross channel 404 is a small hole section, the second slide column 405 is a stepped shaft including a large diameter section and a small diameter section that slides with the second cross channel 404, the third elastic member is a third spring 406, the third spring 406 is arranged in the large hole section, the third spring 406 is sleeved on the small diameter section of the second slide column 405, one end of the third spring 406 is fixedly connected to the end face of the large diameter section of the second slide column 405, and the other end of the third spring 406 is fixedly connected to the bottom of the large hole section of the second cross channel 404.

[0033] like Figure 1-Figure 4 As shown, the elastic tube 407 is arranged at the connection point between the second cross channel 404 and the liquid flow channel 103, the elastic tube 407 and the liquid flow channel 103 are coaxially arranged, the elastic tube 407 is an elastic rubber tube, the outer wall of the elastic tube 407 is attached to the inner wall of the liquid flow channel 103, the outer wall of the elastic tube 407 away from the second cross channel 404 and the outer edge of the elastic tube 407 close to the two ends are fixedly connected to the inner wall of the liquid flow channel 103, and the second end of the second sliding column 405 is fixedly connected to the outer wall of the elastic tube 407.

[0034] A first one-way valve 408 that only allows fluid to enter the liquid flow channel 103 is disposed at the first end of the liquid flow channel 103 , and a second one-way valve 409 that only allows fluid to flow out of the liquid flow channel 103 is disposed at the second end of the liquid flow channel 103 .

[0035] The working principle of this scheme is:

[0036] The position of sputum is detected by the ultrasonic detection head 20 and displayed on the display. When sputum is observed on the display, the operation controller controls the size and frequency of the pulse current passed into the annular electromagnet 301. With the cooperation of the first spring 303, the annular electromagnet 301 drives the annular iron core 302 to slide back and forth on the handle 10 to pat the patient's sputum surface, thereby loosening the sputum in the patient's body, which is beneficial for the patient to expel the sputum in the body by coughing. Due to the provision of the ultrasonic detection head 20 and the display, the position of the sputum can be observed and accurately located more intuitively, thereby improving the efficiency of sputum discharge, reducing the number of sputum discharges and alleviating the patient's pain, which is beneficial for the patient to recover quickly.

[0037] In order to make the image in the display clearer, it is necessary to apply a coupling agent for ultrasonic detection between the ultrasonic probe 20 and the patient's skin. In the present invention, the coupling agent is filled in the liquid storage tank 102. At this time, the first slide column 402 blocks the liquid flow channel 103 under the elastic force of the second spring 403. The patient lies flat, holds the handle 10 with the first end of the handle 10 facing downward and presses the first slide column 402 so that the detail 4021 on the first slide column 402 is aligned with the liquid flow channel 103. The coupling agent in the liquid storage tank 102 flows to the first end face of the handle 10 through the liquid flow channel 103 under the action of gravity. After the coupling agent is applied to the patient's skin, the ultrasonic probe 20 is placed close to the patient's skin and the handle 10 is moved to find the sputum position. The detection situation of the ultrasonic probe 20 is displayed on the display screen in real time. After finding the sputum position, the patient takes a sitting posture. At this time, the handle 10 is placed horizontally, and the coupling agent in the liquid storage tank 102 cannot automatically flow to the first end of the handle 10.

[0038] By operating the controller to pass a pulse current through the annular electromagnet 301, the annular electromagnet 301 generates intermittent magnetic force. With the cooperation of the first spring 303, the annular iron core 302 slides back and forth on the handle 10 to slap the patient's body to loosen the sputum. The frequency and current magnitude of the pulse current passed through the annular electromagnet 301 can be controlled by operating the controller to control the frequency and force of the annular iron core 302 slapping the patient. In the process of the annular iron core 302 repeatedly sliding on the handle 10 to slap the patient, the handle 10 can be moved to track the position of the sputum. Figure 2-Figure 4 As shown, when the annular core 302 slides, the annular core 302 repeatedly squeezes the inclined surface of the first end of the second sliding column 405, and the second sliding column 405 slides back and forth in the second cross channel 404 with the cooperation of the third spring 406. The second end of the second sliding column 405 slides back and forth to squeeze the elastic tube 407, so that the elastic tube 407 is continuously opened and closed. When the second sliding column 405 moves to squeeze the elastic tube 407, the elastic tube 407 is squeezed and contracted, so that the volume of the inner cavity space of the liquid flow channel 103 decreases and the pressure increases, and the liquid The coupling agent in the flow channel 103 is squeezed and flows out from the first end of the handle 10. When the second slide 405 moves away from the liquid flow channel 103, the elastic tube 407 opens to increase the volume of the inner cavity of the liquid flow channel 103 and reduce the pressure. The coupling agent is sucked into the liquid flow channel 103 from the liquid storage tank 102. Under the continuous opening and closing of the first one-way valve 408, the second one-way valve 409 and the elastic tube 407, the coupling agent in the liquid storage tank 102 continuously flows to the first end of the handle 10 and fills between the ultrasonic probe 20 and the patient's skin. When it is not necessary to make the coupling agent flow out from the first end of the handle 10, the first slide 402 can be stopped from being pressed. Under the elastic force of the second spring 403, the first slide 402 slides to block the liquid flow channel 103, and the coupling agent in the liquid storage tank 102 cannot flow into the liquid flow channel 103.

[0039] The above are only embodiments of the present invention, and the common knowledge such as the known specific structures and characteristics in the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Visual sputum removal instrument based on ultrasound guidance, characterized by: The ultrasonic probe comprises a handle, an ultrasonic probe disposed at a first end of the handle, a vibration part disposed on the handle, and an external visualization part, wherein the vibration part comprises an annular electromagnet fixedly connected to the handle and an annular iron core slidably connected to the handle, a first elastic member is disposed between the annular electromagnet and the annular iron core to elastically connect the annular iron core to the annular electromagnet, the visualization part comprises a controller and a display, the controller is electrically connected to the annular electromagnet for controlling the frequency and magnitude of the pulse current flowing through the annular electromagnet, and the display is electrically connected to the ultrasonic probe for displaying the detection status of the ultrasonic probe; The first end of the handle is provided with a mounting hole, the ultrasonic probe is arranged in the mounting hole and fixedly connected to the handle, the handle is provided with a liquid replenishing mechanism, the liquid replenishing mechanism comprises a liquid storage tank arranged at the second end of the handle, a liquid flow channel arranged in the handle, a flow cut-off unit for controlling the on / off of the liquid flow channel, and a driving unit for driving the liquid in the liquid flow channel to flow; The first end of the liquid flow channel is in communication with the inner cavity of the liquid storage tank, and the second end of the liquid flow channel passes through the second end of the handle; The intercepting unit includes a first cross channel arranged along the radial direction of the handle and cross-connected with the liquid flow channel, and a first sliding post slidably connected to the first cross channel, the diameter of the first sliding post is larger than the inner diameter of the liquid flow channel, the first cross channel is a blind hole, the middle part of the first sliding post is arranged to have a diameter smaller than the fine part of other parts of the first sliding post, and a second elastic member is arranged between the first sliding post and the blind end of the first cross channel so that the first sliding post blocks the liquid flow channel and the first end of the first sliding post extends out of the handle; The driving unit includes a second cross-track arranged along the radial direction of the handle, a second sliding column slidably connected to the second cross-track, and an elastic tube arranged in the liquid flow channel corresponding to the second cross-track, the second cross-track is arranged in the handle between the annular electromagnet and the annular core, the first end of the second cross-track is communicated with the external space of the handle, the second end of the second cross-track is communicated with the liquid flow channel, a third elastic member is arranged in the second cross-track so that the first end of the second sliding column extends out of the second cross-track, and the end surface of the first end of the second sliding column is arranged as an inclined surface inclined downward toward the direction close to the handle; The elastic tube is coaxially arranged with the liquid flow channel, the outer wall of the elastic tube is in contact with the inner wall of the liquid flow channel, the outer wall of the elastic tube away from the second transverse channel is fixedly connected with the inner wall of the liquid flow channel, the first end of the liquid flow channel is provided with a first one-way valve that only allows fluid to enter the liquid flow channel, and the second end of the liquid flow channel is provided with a second one-way valve that only allows fluid to flow out of the liquid flow channel.

2. The ultrasound-guided visualized sputum removal device according to claim 1, characterized in that: The first elastic member is a first spring, which is sleeved outside the handle, one end of the first spring is fixedly connected to the annular electromagnet, and the other end of the first spring is fixedly connected to the annular iron core.

3. The ultrasound-guided visualized sputum removal device according to claim 1, characterized in that: The second elastic member is a second spring, which is horizontally arranged, one end of the second spring is fixedly connected to the second end of the first sliding column, and the other end of the second spring is fixedly connected to the blind end of the first cross track.

4. The ultrasound-guided visualized sputum removal device according to claim 1, characterized in that: The second cross channel is a stepped hole, the first end of the second cross channel is a large hole section, the second end of the second cross channel is a small hole section, the second slide column is a stepped shaft slidably matched with the second cross channel, the second slide column includes a large diameter section and a small diameter section, the third elastic member is a third spring, the third spring is arranged in the large hole section, the third spring is sleeved on the small diameter section of the second slide column, one end of the third spring is fixedly connected to the end face of the large diameter section of the second slide column, and the other end of the third spring is fixedly connected to the bottom of the large hole section of the second cross channel.

5. The ultrasound-guided visualized sputum removal device according to claim 1, characterized in that: The second end of the second sliding column is fixedly connected to the elastic tube.

6. The ultrasound-guided visualized sputum removal device according to any one of claims 1 to 5, characterized in that: The handle is provided with a shell covering the annular electromagnet and the annular iron core.

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