A hard intubation endoscope with sputum suction function

Abstract

The present invention discloses a new intubation hard mirror with a sputum suction function, which belongs to the field of medical devices, and specifically relates to: a display, a hard mirror handle, a disposable hard mirror special sputum suction tube and a hard mirror body; the hard mirror body is connected to the hard mirror handle; the hard mirror handle is provided with a sputum suction tube inlet, and the hard mirror handle is provided with a sputum suction tube control system; the front end of the hard mirror body is provided with a camera assembly, and a sputum suction tube channel is provided inside; the disposable hard mirror special sputum suction tube is inserted from the sputum suction tube inlet, passes through the sputum suction tube channel of the hard mirror body and passes out from the front end of the hard mirror body; the camera assembly collects images and transmits them to the display through a video transmission line. The present invention has a more reasonable structure, is more convenient and practical, has a more definite sputum suction effect, and can complete sputum suction and intubation operations with one hand.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to a novel intubation hard endoscope with a sputum suction function. Background Art

[0002] Endotracheal intubation is a medical procedure in which a tracheal tube is placed into the trachea through the mouth and glottis. This technology is widely used in emergency first aid, general anesthesia, ICU ventilator treatment and other fields. In the context of the COVID-19 epidemic, endotracheal intubation has played a vital role in the treatment of severe COVID-19 patients. The use of traditional laryngoscopes for intubation has the disadvantages of large operating stimulation, many secondary injuries, uncertain intubation, difficulty in learning, and low success rate of intubation in patients with difficult airways. Therefore, the core tube intubation technology has become more widely used in clinical practice. Rigid endoscopic intubation, as a core tube intubation technology, is becoming more and more popular among clinical physicians.

[0003] In clinical practice, many patients secrete a lot of sputum in the respiratory tract due to long-term smoking and inflammatory stimulation. The sputum can easily adhere to the end of the hard mirror and block the operator's field of vision. The presence of sputum seriously affects the operator's judgment of the local structure, prolongs the intubation time, and greatly reduces the success rate of hard mirror intubation. In addition, if the sputum in the mouth is brought into the trachea during the intubation process, it is easy to cause lung infection and affect the recovery of the patient's lung function after surgery. Therefore, timely suction during hard mirror intubation becomes particularly important. At present, ordinary suction tubes are mainly used in clinical practice, and suction operations are performed outside the tracheal tube. The main disadvantages of this suction method are: 1. Ordinary suction tubes require two hands to control the direction of the suction tube, and an assistant is required to assist in the suction operation during the intubation process; 2. The suction tube is directly inserted into the mouth and enters and exits outside the tracheal tube. The direction of the suction tube is poorly controllable and the suction site is not accurate; 3. It is difficult for the suction tube to attract sputum that has adhered to the hard mirror.

[0004] In recent years, some patents have proposed solutions to the above problems, and proposed a design scheme for a hard endoscope (visible tube core) that can suction sputum, but there are also some disadvantages and inconveniences that affect the suction and intubation effects. Currently, hard endoscopes for suctioning sputum can be roughly divided into the following two categories:

[0005] The first category is a hard endoscope for suctioning sputum between the endotracheal tube and the endoscope, such as: a video light stick with oxygen supply, airway drug administration and airway suction (authorization announcement number: CN209048838U authorization announcement date: 2019.07.02), and the side connection port 42 is connected to the external negative pressure to suck out the sputum in the trachea through the space between the endotracheal tube 5 and the stick body 1. Its main disadvantages are: 1. Sputum is sucked through the inner wall of the endotracheal tube, and much of the sputum will adhere to the inner wall of the endotracheal tube. After intubation, the endotracheal tube is connected to the ventilator, and the sputum adhered to the inner wall of the endotracheal tube will be sucked into the patient's lungs or cause contamination in the ventilator; 2. The tip of the endotracheal tube often has a side hole. When sputum is sucked through the space between the endotracheal tube 5 and the rod body 1, air will be sucked from the side hole, resulting in poor sputum suction effect at the tip of the endotracheal tube; 3. Sputum will adhere to the rod body 1 and the side connection port 42, and disinfection and cleaning are required again after the operation; 4. The equipment lacks a suction control switch, and the operator cannot directly control the start and stop of suction.

[0006] The second category is the hard endoscope for internal suction of sputum, such as the visual multifunctional endotracheal tube core (authorization announcement number: CN204092773U authorization announcement date: 2015.01.14). When establishing an artificial airway, the operator turns on the switches of the video signal transmission switch 6 and the display screen 7, and connects the negative pressure suction device to the suction connection joint 8, and then inserts the tube core body 1 into the endotracheal tube. During intubation, the right hand holds the tube core body 1 while sucking the patient's oral secretions while looking at the display screen 7, and at the same time slowly inserts the endotracheal tube along the patient's tongue surface into the airway, and the left hand presses the patient's tongue surface and lifts the patient's lower jaw, and the suction head 2 sucks the patient's oral secretions and enters the negative pressure suction device through the suction connection joint 8. Under the illumination of the light source head 4, the video file collected by the camera 3 is converted into a video signal by the video signal transmitter 5 and wirelessly transmitted, and the display screen 7 receives the wireless video signal transmitted by the video signal transmitter 5 and displays it. Its main disadvantages are: 1. The suction head 2 is designed to be flush with the camera 3 and the light source head 4. When the suction head is close to the sputum, part of the sputum will still adhere to the surface of the camera 3 and the light source head, affecting the operator's field of view; 2. The sputum is deformed in the pipe connecting the suction connection joint 8 and the suction head 2, which is easy to cause sputum residue and adhere to the pipe. It needs to be cleaned in time, otherwise it will contaminate and block the channel, affecting the suction effect; 3. During conventional rigid endoscope intubation, in order to avoid contamination and protect the rigid endoscope, the front end of the tracheal tube needs to exceed the front end of the rigid endoscope, and the rigid endoscope is completely wrapped in the tracheal tube. At this time, the sputum cannot be fully touched by the front end of the rigid endoscope; 4. The equipment lacks a suction control switch, and the operator cannot directly control the start or stop of suction.

[0007] In view of this, the present invention is proposed. Summary of the invention

[0008] The purpose of the present invention is to provide a hard intubation endoscope with a sputum suction function, which has a more reasonable structure, is more convenient and practical, has a more definite sputum suction effect, and can complete the sputum suction and intubation operations with one hand.

[0009] In order to achieve the above-mentioned objectives, the present invention provides an intubation rigid endoscope with a suction function, comprising: a display, a rigid endoscope handle, a disposable rigid endoscope special suction tube and a rigid endoscope body; the rigid endoscope body is connected to the rigid endoscope handle; a suction tube inlet is provided on the rigid endoscope handle, and a suction tube control system is provided inside the rigid endoscope handle; a camera assembly is provided at the front end of the rigid endoscope body, and a suction tube channel is provided inside; the disposable rigid endoscope special suction tube is inserted from the suction tube inlet, passes through the suction tube channel of the rigid endoscope body and passes out from the front end of the rigid endoscope body; the camera assembly captures images and transmits them to the display via a video transmission line.

[0010] Preferably, the suction tube control system consists of a suction tube adjustment wheel, a suction tube pressure roller, a pressure roller frame, a button linkage rod, a rubber band and a suction button; the suction tube adjustment wheel is a rough-surfaced cylindrical wheel and is rotatably fixed to the rear wall of the trial hard mirror handle through a metal shaft.

[0011] Preferably, the suction tube pressure roller is cylindrical with a rough surface and is rotatably fixed to the pressure roller frame via a metal shaft; the two suction tube pressure rollers are in contact with each other.

[0012] Preferably, the pressure roller frame is fixed in the hard mirror handle via a metal shaft, and two rubber bands are fixed to the cross beam at its upper end; one end of the rubber band is fixed to the rear wall of the hard mirror handle; in a natural state, the rubber band is in an elastic tension state.

[0013] Preferably, the disposable suction tube for hard mirror is a hollow tube, and a suction tube joint is provided at its tail end; the head end of the disposable suction tube for hard mirror is inserted from the suction tube entrance, passes through between the suction tube pressure roller and the sliding suction tube adjustment wheel, passes through the suction tube channel and passes out from the front end of the hard mirror body; in a natural state, the two suction tube pressure rollers flatten the disposable suction tube for hard mirror under the elastic force of the rubber band.

[0014] Preferably, when the suction tube adjusting wheel is slid up and down, the rotation of the suction tube adjusting wheel and the two suction tube pressure rollers drives the disposable hard endoscope-specific suction tube to extend and retract in the suction tube channel.

[0015] Preferably, the suction button is connected to the crossbeam at the lower end of the pressure roller frame via the button linkage rod; when the suction button is pressed, the two suction tube pressure rollers leave the surface of the suction tube adjusting wheel; when the suction button is released, under the elastic force of the rubber band, the suction tube pressure rollers flatten the disposable hard endoscope-specific suction tube again.

[0016] Preferably, the outer wall of the hard endoscope is composed of a stainless steel tube, on which a catheter positioning plug is provided, and inside which a video transmission line and a suction tube channel are arranged; the suction tube channel is a hollow circular tube for freely passing the disposable hard endoscope-specific suction tube.

[0017] The hard intubation endoscope with sputum suction function provided by the present invention has the following beneficial effects:

[0018] 1. The disposable hard endoscope dedicated sputum suction tube of the present invention can be extended from the front end of the endoscope body for suction, thereby avoiding the influence of sputum contacting the camera on the visual field.

[0019] 2. The sputum is sucked out through a disposable suction tube specially designed for the hard endoscope to avoid sputum contamination of the hard endoscope body, reduce the difficulty of disinfection and cleaning, and reduce the risk of cross-infection among patients.

[0020] 3. The handle of the present invention is provided with a suction tube adjustment wheel, and the sliding roller can control the in and out of the disposable hard endoscope dedicated suction tube, realizing the single-handed control of the suction operation.

[0021] 4. The handle of the present invention is provided with a sputum suction button, which can open or close the sputum suction function at any time.

[0022] 5. The disposable hard endoscope dedicated suction tube is always within the camera's field of view, and the suction position is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a hard intubation endoscope with sputum suction function of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of a hard intubation endoscope with sputum suction function of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of a sputum suction tube control system of a hard intubation endoscope with sputum suction function according to the present invention;

[0026] Figure 4 It is a cross-sectional view of the front end of the body of a hard intubation endoscope with sputum suction function according to the present invention;

[0027] Figure 5 It is a cross-sectional view of the front end of the scope body of a hard intubation scope with sputum suction function according to the present invention.

[0028] In the figure:

[0029] 1. Display; 101. Screen; 102. Power switch; 103. Charging port; 104. Display head; 2. Hard mirror handle; 201. Suction tube entrance; 202. Suction button; 203. Suction tube adjustment wheel; 204. Suction tube pressure roller; 205. Pressure roller frame; 206. Button linkage rod; 207. Rubber band; 208. Video transmission line; 3. Disposable hard mirror special suction tube; 301. Suction tube connector; 4. Hard mirror body; 401. Catheter positioning plug; 402. Stainless steel tube; 403. Camera assembly; 404. Suction tube channel. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0031] like Figure 1-5 As shown, the present invention provides an intubation hard endoscope with a sputum suction function, comprising: a display 1, a hard endoscope handle 2, a disposable hard endoscope special sputum suction tube 3 and a hard endoscope body 4.

[0032] The hard mirror handle 2 is provided with a suction tube inlet 201, a suction button 202 and a suction tube adjustment wheel 203, and a suction tube control system is provided inside. The hard mirror body 4 is connected to the hard mirror handle 2, and a camera assembly 403 is provided at the front end of the hard mirror body 4, and a suction tube channel 404 is provided inside. The disposable hard mirror dedicated suction tube 3 can be inserted through the suction tube inlet 201 on the hard mirror handle 2, move in the suction tube channel 404 and pass out from the front end of the hard mirror body 4. The camera assembly 403 can collect images and transmit them to the display 1 through the video transmission line 208 through the hard mirror body 4 and the hard mirror handle 2, and the collected images can be displayed on the screen 101 in real time.

[0033] The sputum suction tube control system consists of a sputum suction tube adjusting wheel 203, two sputum suction tube pressure rollers 204, a pressure roller frame 205, a button linkage rod 206, a rubber band 207 and a sputum suction button 202; the sputum suction tube adjusting wheel 203 has a rough cylindrical surface and is fixed to the rear wall of the hard mirror handle 2 via a metal shaft, with half of it protruding from the surface of the hard mirror handle 2, and the sputum suction tube adjusting wheel 203 can be slid by fingers, and the sliding sputum suction tube adjusting wheel 203 can rotate freely around the metal shaft; the sputum suction tube pressure roller 204 has a rough cylindrical surface and is fixed to the pressure roller frame 205 via a metal shaft, the two sputum suction tube pressure rollers 204 are in contact with each other, and the sputum suction tube pressure rollers 204 can rotate freely around the metal shaft; the pressure roller frame 205 is fixed in the hard mirror handle 2 via a metal shaft, and two rubber bands 207 are fixed to the crossbeam at its upper end; the other end of the rubber band 207 is fixed to the rear wall of the hard mirror handle 2.

[0034] In a natural state, the rubber band 207 is in an elastic tension state, pulling the pressure roller frame 205 to make the two suction tube pressure rollers 204 fit closely with the sliding suction tube adjusting wheel 203; when the suction tube adjusting wheel 203 is slid, the two suction tube pressure rollers 204 can be driven to rotate; the disposable hard mirror dedicated suction tube 3 is a hollow tube, which can be flattened after being compressed, and a suction tube connector 301 is provided at its tail end, and the head end can be inserted from the suction tube entrance 201 on the handle, and move between the suction tube pressure roller 204 and the sliding suction tube adjusting wheel 203, and then enter the suction tube channel 404 and pass through the front end of the mirror body.

[0035] In a natural state, under the elastic force of the rubber band 207, the two suction tube pressure rollers 204 flatten the disposable hard endoscope dedicated suction tube 3 and prevent suction; when the suction tube adjustment wheel 203 slides up and down, the rotation of the suction tube adjustment wheel 203 and the two suction tube pressure rollers 204 can drive the disposable hard endoscope dedicated suction tube 3 to extend and retract from the suction tube channel 404; the suction button 202 is connected to the lower end beam of the pressure roller frame 205 via the button linkage rod 206. When the suction button 202 is pressed, the button linkage rod 206 pushes the lower end beam of the pressure roller frame 205. The pressure roller frame 205 performs lever motion around the metal shaft, and the two suction tube pressure rollers 204 leave the surface of the sliding suction tube adjustment wheel 203, and the disposable hard endoscope dedicated suction tube 3 is relieved of pressure and resumes the suction function; when the suction button 202 is released, under the elastic force of the rubber band 207, the suction tube pressure roller 204 flattens the disposable hard endoscope dedicated suction tube 3 again, stopping the suction function; the outer wall of the hard endoscope body 4 is composed of a stainless steel tube 402, on which a catheter positioning plug 401 is provided for fixing the tracheal tube, and a video transmission line 208 and a suction tube channel 404 are arranged inside. The suction tube channel 404 is a hollow circular tube that runs through the hard endoscope body 4, and the disposable hard endoscope dedicated suction tube 3 can freely pass through.

[0036] The working process of using the intubation rigid endoscope with suction function of the present invention to perform suction and intubation operations on patients is as follows: insert the disposable rigid endoscope special suction tube 3 through the suction tube inlet 201 on the handle, press the suction button 202, and continuously feed the disposable rigid endoscope special suction tube 3 until the disposable rigid endoscope special suction tube 3 passes through the suction tube channel 404 at the head end of the rigid endoscope body 4, then release the suction button 202, slide the suction tube adjustment wheel 203 up and down, and adjust the length of the disposable rigid endoscope special suction tube 3 so that its tip slightly protrudes from the head end of the rigid endoscope body 4. Connect the suction tube connector 301 to the negative pressure suction tube. Select a suitable type of tracheal tube and put it on an intubation rigid endoscope with suction function, and adjust the catheter positioning plug 401 so that the front end of the tracheal tube slightly exceeds the front end of the rigid endoscope. During intubation, the left hand presses the patient's tongue surface and lifts the patient's mandible, and the right hand holds the tube hard mirror handle 2 to slowly insert the tracheal tube and hard mirror into the airway along the patient's hard palate surface. When it is found that there is a lot of sputum or the sputum blocks the field of vision, the right thumb slides the suction tube adjustment wheel 203 on the hard mirror handle 2 to make the disposable hard mirror special suction tube 3 extend to the vicinity of the sputum, and the index finger presses the suction button 202 to suction. After the suction is completed, release the suction button 202 to stop suction, continue to go deep into the hard mirror, find the glottis, if you encounter sputum again, repeat the above operation to repeatedly suction until the field of vision is clear. After finding the glottis, insert the hard mirror to the level of the vocal cords, fix the hard mirror, push the tracheal tube 2-3cm, fix the tracheal tube and withdraw the hard mirror, and the tracheal intubation operation is completed. After the operation is completed, use scissors to cut the disposable hard mirror special suction tube 3 at the suction tube entrance 201, press the suction button 202, and extract the used disposable hard mirror special suction tube 3 from the head end of the hard mirror body 4. This suction operation is more accurate and can be completed by one person with one hand, making the suction and intubation process simpler, further shortening the operation time and improving the success rate of intubation.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] The invention concept is described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the core idea of ​​the invention. It should be pointed out that any obvious modification, equivalent substitution or other improvement made by a person of ordinary skill in the art without departing from the invention concept should be included in the protection scope of the present invention.

Claims

1. A hard intubation endoscope with sputum suction function, characterized in that: include: A display, a hard mirror handle, a disposable hard mirror special suction tube and a hard mirror body; the hard mirror body is connected to the hard mirror handle; the hard mirror handle is provided with a suction tube inlet, and the hard mirror handle is provided with a suction tube control system; the front end of the hard mirror body is provided with a camera assembly, and a suction tube channel is provided inside; the disposable hard mirror special suction tube is inserted from the suction tube inlet, passes through the suction tube channel of the hard mirror body, and passes out from the front end of the hard mirror body; the camera assembly collects images and transmits them to the display through a video transmission line; The suction tube control system is composed of a suction tube adjustment wheel, a suction tube pressure roller, a pressure roller frame, a button linkage rod, a rubber band and a suction button; the suction tube adjustment wheel is a rough cylindrical wheel and is rotatably fixed to the rear wall of the hard mirror handle through a metal shaft; The suction button is connected to the crossbeam at the lower end of the pressure roller frame via the button linkage rod; when the suction button is pressed, the two suction tube pressure rollers leave the surface of the suction tube adjusting wheel; when the suction button is released, under the elastic force of the rubber band, the suction tube pressure rollers flatten the disposable hard endoscope-specific suction tube again.

2. The intubation hard endoscope with sputum suction function according to claim 1, characterized in that: The suction tube pressure roller is in the shape of a cylinder with a rough surface and is rotatably fixed on the pressure roller frame through a metal shaft; the two suction tube pressure rollers are in contact with each other.

3. The intubation hard endoscope with sputum suction function according to claim 1, characterized in that: The pressure roller frame is fixed in the hard mirror handle via a metal shaft, and two rubber bands are fixed on the upper crossbeam; one end of the rubber band is fixed to the rear wall of the hard mirror handle; in a natural state, the rubber band is in an elastic tension state.

4. The intubation hard endoscope with sputum suction function according to claim 3, characterized in that: The disposable suction tube for hard endoscope is in the shape of a hollow tube, and a suction tube joint is provided at its tail end; the head end of the disposable suction tube for hard endoscope is inserted from the suction tube entrance, passes through between the suction tube pressure roller and the sliding suction tube adjustment wheel, passes through the suction tube channel of the hard endoscope body, and passes out from the front end of the hard endoscope body; in a natural state, the two suction tube pressure rollers flatten the disposable suction tube for hard endoscope under the elastic force of the rubber band.

5. The intubation hard endoscope with sputum suction function according to claim 4, characterized in that: When the suction tube adjusting wheel is slid up and down, the rotation of the suction tube adjusting wheel and the two suction tube pressure rollers drives the disposable hard endoscope special suction tube to extend and retract in the suction tube channel.

6. The intubation hard endoscope with sputum suction function according to claim 1, characterized in that: The outer wall of the hard endoscope is composed of a stainless steel tube, on which a catheter positioning plug is provided, and inside which a video transmission line and a suction tube channel are arranged; the suction tube channel is a hollow circular tube, which is used for the disposable hard endoscope-specific suction tube to freely pass through.

Images