Visualized sputum suction device and intelligent control system thereof

Abstract

A visual suction device and its intelligent control system include a slender suction catheter and a flexible first isolation sheath covering the suction catheter. The first isolation sheath is connected to a hollow distal connector and is connected to a matching artificial airway. The proximal connector of the first isolation sheath is sealed to at least one circumferential portion of the tail section of the suction catheter. An external force applied to the tail section of the suction catheter can drive the head section of the suction catheter to rotate and / or move forward and backward. The device also includes a bending component that drives the head section of the suction catheter to tilt at least to one side. The intelligent control system includes a main unit, a cantilever, a central processing unit, a guide rail, a display screen, and various drive units. The guide rail houses the suction catheter and the first isolation sheath covering the suction catheter. The central processing unit receives image information from the camera component on the suction catheter and / or the camera component on the artificial airway, and activates each drive unit to complete the suction action based on the sputum image analysis.

Description

Technical Field

[0001] This invention relates to a visual sputum suction device and its intelligent control system, belonging to the field of medical device manufacturing technology. Background Technology

[0002] Currently, most critically ill patients, especially those using artificial airways such as endotracheal intubation and tracheostomy tubes, undergo blind suctioning, which has the following significant drawbacks: 1. It is difficult to align the sputum inlet of the suction catheter with sputum clumps. The clinical routine is to rotate the suction catheter, increasing the probability of contact with sputum, which is extremely inefficient; 2. When there is no contact with sputum, the negative pressure is continuously maintained, which easily attracts tracheal mucosa, leading to mucosal damage, edema, and / or bleeding. All of these damage the integrity of the mucosa, reduce mucosal resistance, and worsen and make infection difficult to control; 3. The clinically established 15-second suctioning time per session is limited. 1. Most of the time is wasted searching for sputum, which increases respiratory resistance and aggravates patient hypoxia; 2. There is no individualized sputum suction warning mechanism. Suctioning is only initiated when sputum blockage occurs or blood oxygen saturation is below 90%, resulting in a serious delay in the suctioning operation; 3. The viscosity of sputum varies from patient to patient, and even for the same patient, the viscosity of sputum varies at different times and locations. Clinically, sputum suction is often performed at the same negative pressure value. If the negative pressure is set too low, it is difficult to remove viscous sputum. If the negative pressure is set too high, the mucosa will be severely damaged, making each suctioning attempt very likely to fail or cause additional damage; Even though closed suction tubing for the prevention of external infection has been widely used in recent years, the above-mentioned significant defects still exist.

[0003] Current technology is far from achieving timely, accurate, rapid, and low-damage suctioning, and it has not effectively achieved the coordinated operation of sputum expectoration and suctioning.

[0004] Currently, the only visual method of sputum suction is bronchoscopic suction, which requires a specialist doctor to operate. It is highly specialized and the equipment is expensive. When the endoscope enters the narrow bronchus inside the lung lobe, it can cause severe airway obstruction, greater airway damage, and more pain for the patient. However, it is still the best solution for bronchial obstruction caused by viscous sputum or sputum plugs.

[0005] Failure to promptly clear sputum from the trachea, left and right main bronchi can lead to insufficient airway humidification, impaired bronchial mucociliary function, and further stimulation of excessive sputum secretion, creating a vicious cycle. This is also a major cause of sputum plugs in the bronchi and sputum crusts at the distal opening of the artificial airway.

[0006] Failure to promptly clear sputum from the left and right main bronchuses and trachea can lead to rapid deterioration and death in critically ill patients. However, current sputum suction techniques are characterized by high cost, low efficiency, and high risk. Summary of the Invention

[0007] This invention provides a visual suction device and its intelligent control system.

[0008] The objective of this invention is achieved as follows:

[0009] A visual suction device includes a slender suction catheter and a flexible first isolation sheath covering the suction catheter. The first isolation sheath has a hollow distal connector that connects to a matching artificial airway. The tip and middle sections of the suction catheter can be completely or mostly covered by the extended first isolation sheath. When the moving part of the first isolation sheath is axially stacked and compressed, the tip of the suction catheter protrudes from the opening of the distal connector of the first isolation sheath, and the tail section of the suction catheter exits from the proximal connector of the first isolation sheath and is finally connected to a negative pressure container. The suction port is located at the tip of the suction catheter tip and communicates with the lumen of the suction catheter. The proximal connector of the first isolation sheath is sealed to at least one circumferential portion of the tail section of the suction catheter. The tail section of the suction catheter exits from the proximal connector of the first isolation sheath, and external force is applied to the tail section of the suction catheter. It can drive the suction catheter tip to rotate and / or move forward and backward; it also includes a bending assembly that drives the suction catheter tip to tilt at least to one side. The bending assembly consists of a bending body, a traction line, and a drive handle that are integrated together. The bending body is located at the suction catheter tip, the traction line is distributed along the suction catheter, the distal end of the traction line is connected to the bending body, and the proximal end of the traction line passes through the proximal connector area of ​​the first isolation sheath and connects to the drive handle. In order to eliminate sputum that may adhere to the suction catheter tip after each suctioning, the distal connector of the first isolation sheath is tubular and has an extension protruding distally. Each extension has a tubular branch with a blind end on the left and right sides. The tubular branch wall is provided with a liquid injection hole. The inner cavity of the tubular branch is a cleaning cavity for the suction catheter tip. The distal end of the extension is connected to a hollow artificial airway connector.

[0010] The tip of the suction catheter is equipped with a camera component and / or the tip of the artificial airway used in conjunction with it is equipped with a camera component.

[0011] Furthermore, the interior of the first isolation garment moving part is fixedly connected with multiple support sheets having central holes. The support sheets are arranged in a circular axially spaced manner to better maintain the consistency of the stacking and compression process of the first isolation garment moving part.

[0012] To ensure smooth assembly with the intelligent control system, it is essential to assemble the proximal end of the suction catheter first. During the assembly process, a long section of the suction catheter should extend out of the first isolation sleeve. The hollow distal connector or its extension area in the first isolation sleeve is fitted with a sealing bag that can accommodate at least the head section of the suction catheter. The sealing bag and the distal connector are easily detachable. The sealing bag ensures isolation from ambient air microorganisms during the assembly process.

[0013] Preferably, the bending body of the bending component is connected to two tension lines that are symmetrically distributed on the left and right sides.

[0014] Considering the potential disruption to the stability of the artificial airway caused by the patient's unconscious movements, a second isolation gown is connected to the distal connector of the tubular first isolation gown. The distal end of the second isolation gown is provided with an annular sleeve that communicates with the artificial airway. The connection strength between the annular sleeve and the artificial airway is greater than the connection strength between the distal connector of the first isolation gown and the artificial airway.

[0015] An artificial airway for use with the patient, and a camera unit may be installed at the distal end of the artificial airway.

[0016] It also includes a negative pressure container connected to the suction conduit, with one end of the negative pressure container connected to the suction conduit and the other end connected to the negative pressure source pipeline.

[0017] An intelligent control system for a visual suction device is provided for controlling the device. The system includes a main unit, a cantilever, a central processing unit, a guide rail, and one or more of a display screen, a first drive unit, a second drive unit, a third drive unit, a fourth drive unit, and a fifth drive unit. The guide rail houses the suction catheter and a first isolation sheath covering it. The first drive unit drives the guide rail to move, thereby displacing the visual suction device. The second drive unit acts on the tail end of the suction catheter to rotate it. The third drive unit acts on the drive handle proximal to the traction line. The fourth drive unit acts on the liquid inlet line to inject liquid into the cleaning chamber of the suction catheter head. The fifth drive unit determines whether external negative pressure is connected to the suction catheter lumen. The central processing unit receives image information from the suction catheter camera assembly and / or the camera assembly on the artificial airway, and activates each drive unit based on sputum image analysis to complete the suctioning action.

[0018] For better intelligent control, the second and third drive units are connected to the guide rail or to a circular base plate connected to the guide rail and move synchronously. The first drive unit acts on the circular base plate connected to the guide rail to drive the guide rail to rotate clockwise or counterclockwise.

[0019] To further enhance efficiency, the device also includes one or more of the following: a camera component for monitoring the cleaning chamber of the suction catheter tip; a camera component for monitoring the operation of the drive unit; a camera component for monitoring the liquid status in the negative pressure container; a camera component for monitoring the connection status of the first isolation gown and / or the second isolation gown with the artificial airway; a camera component for monitoring the patient's facial condition and changes in the position of the artificial airway; and a camera component for monitoring the surrounding environment of the intelligent control system of the visual suction device.

[0020] The beneficial effects of this invention are:

[0021] 1. Visualized suctioning under isolation protection: The visual camera component is set at the distal end of the artificial airway, such as the endotracheal tube or tracheostomy cannula. The first isolation sheath forms a microbial isolation combination between the suction catheter and the artificial airway. The camera component monitors the presence or absence of sputum in the trachea in real time, and the real-time artificial intelligence program analyzes the viscosity of the sputum and displays the location of the sputum. It provides an alarm prompt and / or judges and autonomously decides whether to start suctioning.

[0022] 2. Precise suctioning: Under the guidance of the image, the suction catheter is quickly inserted into the trachea through the artificial airway by the servo motor module of the first drive unit of the intelligent control system. The tip of the suction catheter is bent by the bending component and the suction port at the tip is precisely aligned with the sputum clump.

[0023] 3. Short-term negative pressure suction: Unlike traditional suctioning where negative pressure is continuously applied, the negative pressure of this invention is activated only after the suction port at the tip of the suction catheter is aligned with and in contact with the sputum clump, thus completely eliminating the risk of damage caused by negative pressure directly acting on the tracheal mucosa.

[0024] 4. Sputum-matched negative pressure suction: The negative pressure value is matched according to the sputum viscosity indicated by the image to avoid excessive air suction caused by excessive negative pressure, which may lead to alveolar ventilation / perfusion ratio disorder.

[0025] 5. The retention time of the suction catheter in the airway is significantly shortened, from the traditional 15 seconds to less than 8 seconds in many scenarios, greatly reducing the risk of hypoxia in human tissue cells caused by increased resistance due to the retention of the suction catheter in the airway.

[0026] 6. Visual suctioning can be initiated as soon as possible after sputum is diluted, in conjunction with existing clinical airway humidification procedures, to reduce the likelihood of viscous sputum formation and further shorten the time of a single suctioning session.

[0027] 7. The images of the airway and the suctioning procedure are displayed in real time on the screens at the bedside and / or nursing station, facilitating medical and nursing monitoring and analysis.

[0028] 8. The intelligent control system of the visual suction device of the present invention can be coupled with the vibration suction module. After vibration suction, suction is performed in time. The artificial intelligence program in the intelligent control system can not only direct the suction device to operate well, but also automatically evaluate the suction effect.

[0029] 9. A visual camera component is set at the tip of the suction catheter, becoming a flexible bronchoscope, which facilitates the insertion of the suction catheter into the bronchus to complete deep sputum suction. This can be done autonomously by an intelligent control system with implanted artificial intelligence, greatly improving efficiency and reducing the burden on medical staff.

[0030] 10. The distal connector of the first isolation gown is tubular, extending distally to at least one tubular cleaning chamber with a blind end. The two symmetrical cleaning chambers facilitate flexible operation when the patient turns to the left or right. The cleaning chamber, which is isolated from the outside, can clean and remove a small amount of sputum or other dirt adhering to the tip of the suction catheter.

[0031] 11. A second isolation gown is connected to the distal connector of the first isolation gown. The distal annular connector of the second isolation gown is connected to the artificial airway. When the patient or others unconsciously touch the first isolation gown and the suction catheter inside, even if the distal connector of the first isolation gown is dislodged from the inlet of the suction catheter in the artificial airway with great force, the second isolation gown will be stretched and extended, but the distal annular connector of the second isolation gown will still be connected to the artificial airway in a closed manner, eliminating the risk of harmful particles such as microorganisms in the external airway entering the artificial airway.

[0032] 12. In order to facilitate the use of the visual suction device of the present invention in conjunction with its intelligent control system, a sealing bag that can accommodate at least the tip of the suction catheter is fitted on the distal connector of the hollow first isolation gown or on the annular sleeve at the distal end of the second isolation gown.

[0033] 13. The intelligent control system of the visual suction device is equipped with a camera component for monitoring the cleaning chamber of the suction catheter tip, a camera component for monitoring the operation of the drive unit, a camera component for monitoring the liquid status in the negative pressure container, a camera component for monitoring the connection status of the first isolation gown and / or the second isolation gown with the artificial airway, a camera component for monitoring the patient's facial condition and changes in the position of the artificial airway, and a camera component for monitoring the surrounding environment of the intelligent control system of the visual suction device, which further ensures the good operation of the present invention. Attached Figure Description

[0034] The following figures are not limited to the present invention:

[0035] Figure 1A : A cross-sectional diagram of the existing suction catheter 01 perpendicular to the trachea B

[0036] Figure 1B A lateral sectional view of the existing suction catheter 01 entering the trachea B.

[0037] Figure 1C Schematic diagram of the existing suction catheter 01 entering the trachea B through the artificial airway 3.

[0038] Figure 1D Schematic diagram of partial cross-section of trachea B in Example 1

[0039] Figure 1E Partial cross-sectional diagram of Example 1

[0040] Figure 1F : Another partial cross-sectional schematic diagram of Example 1

[0041] Figure 1G Example 1: A schematic diagram showing the bending state and partial cross-section of the connecting artificial airway 3.

[0042] Figure 1H Schematic diagram of the suction catheter tip 11 entering the artificial airway lumen 30 in Example 1.

[0043] Figure 1I Schematic diagram of the suction catheter tip 11 of Example 1 bent towards the sputum S.

[0044] Figure 1J Schematic diagram of the suction catheter tip 11 in Example 1 starting to aspirate sputum S.

[0045] Figure 1K Schematic diagram of the suction catheter tip 11 entering the tracheal lumen B0 in Example 1.

[0046] Figure 1L Example 1: A schematic diagram showing the bent state of the suction catheter tip 11 in the display screen and the start of suctioning sputum S.

[0047] Figure 1M Example 2: Schematic diagram of a product with symmetrically distributed cleaning chambers 2110.

[0048] Figure 1N Schematic diagram of a partial cross-section of the cleaning chamber 2110 in Example 2

[0049] Figure 10 Schematic diagram of a partial cross-section of the suction catheter tip 11 entering the cleaning chamber 2110 in Example 2.

[0050] Figure 1P Schematic diagram of a partial cross-section of the distal connector 21 connecting to the sealing bag 26 in Example 2.

[0051] Figure 2A : A cross-sectional view of the second isolation gown 4 in Example 2, showing its connection with the artificial airway 3.

[0052] Figure 2B Schematic diagram of the cross-section of the second isolation gown 4 in Example 2, separated from the artificial airway 3.

[0053] Figure 2C Partial cross-sectional diagram of Example 2

[0054] Figure 3A 3D schematic diagram of the overall layout of Example 3

[0055] Figure 3B A schematic diagram from one perspective of Embodiment 3 shows the first driving unit 51.

[0056] Figure 3C: Another perspective schematic diagram of Embodiment 3, showing the second driving unit 52

[0057] Figure 3D : Another perspective schematic diagram of Embodiment 3, showing the fourth driving unit 54

[0058] Figure 3E : Partial sectional schematic diagram from another perspective of Embodiment 3, showing the third driving unit 53

[0059] Figure 3F : Schematic diagram of component decomposition from one perspective of Embodiment 3

[0060] Figure 3G : Schematic diagram of the visual suction device supporting the intelligent control system in Embodiment 3

[0061] Figure 3H : Schematic diagram of the separation of the visual suction device in Embodiment 3 from the guide rail 50 on the circular base plate Detailed implementation manners

[0062] The embodiments of the present invention are not limited as follows:

[0063] Embodiment 1:

[0064] First, after the existing suction catheter 01 enters the trachea B lumen B0, as Figure 1A shown, the suction catheter 01 cannot accurately reach the adherent sputum S above and on the side of the trachea B lumen B0. Except for the tip suction port 011, a conventional lateral suction port 012 is provided (as Figure 1B ). The setting of the double suction ports will cause the negative pressure to be dispersed, resulting in insufficient attraction to the sputum S, and it is difficult for the sputum to be fully inhaled into the inner cavity 010 of the suction catheter 01, affecting the suction efficiency; due to the blind suction without image guidance, it is easy to damage the tracheal mucosa. The clinical guidelines can only emphasize that after the suction catheter 01 enters the trachea B, start the negative pressure and rotate and withdraw while increasing the chance of touching the sputum S, and one operation should be completed within 15 seconds. Often, the sputum S has not been touched yet, and the suction catheter 01 has withdrawn from the trachea B; Figure 1C Show the existing suction catheter 01 entering the trachea B lumen B0 through the artificial airway 3. A fixed airbag 31 is provided in the area of the distal opening 301 of the artificial airway. The fixed airbag 31 is connected to an airbag filling catheter (not shown in the figure). The suction catheter 01 enters the artificial airway lumen 30 from the suction catheter inlet 302 at the proximal end of the artificial airway and then enters the tracheal lumen B0 through the distal opening 301. The proximal opening 013 of the suction catheter 01 is connected to a negative pressure pipeline or a negative pressure container (not shown in the figure).

[0065] Some structures of the present invention are as Figure 1D , Figure 1E , Figure 1FAs shown, a visual suction device includes a slender suction catheter 1 and a flexible first isolation gown 2 covering the suction catheter 1. The hollow distal connector 21 of the first isolation gown 2 is connected to a matching artificial airway 3. The head section 11 and the middle section 12 of the suction catheter 1 can be covered by the first isolation gown 2 in an extended state. When the first isolation gown 2 is compressed, the head section 11 of the suction catheter 1 protrudes from the opening 210 of the distal connector 21 of the first isolation gown 2, and the tail section 13 of the suction catheter 1 exits from the proximal connector 23 of the first isolation gown 2 and is finally connected to a negative pressure container. The suction port 101 is located at the tip 111 of the head section 11 of the suction catheter 1 and communicates with the lumen 10 of the suction catheter. 2. The proximal connector 23 is sealed to at least one circumferential portion of the tail section 13 of the suction catheter 1, allowing the proximal connector 23 of the first isolation sheath 2 and the suction catheter 1 to move axially synchronously. A partially rotatable sealed connection facilitates free rotation of the suction catheter 1 while the first isolation sheath 2 is stationary. The tail section 13 of the suction catheter 1 extends from the proximal connector 23 of the first isolation sheath 2. External force applied to the distal tail section 13 can drive the head section 11 of the suction catheter 1 to rotate and / or move forward and backward. The end of the tail section 13 is the external interface 102 of the suction catheter 1, which is connected to a negative pressure pipeline or negative pressure container (not shown) during use. The system also includes a bend that drives the head section 11 of the suction catheter 1 to tilt at least to one side. The bending assembly 14 consists of an integrally connected bending body 141, a traction wire 142, and a drive handle 143. The bending body 141 is located at the head section 11 of the suction catheter 1. The traction wire 142 is distributed along the suction catheter 1. The distal end of the traction wire 142 is connected to the bending body 141, and the proximal end of the traction wire 142 passes through the proximal connector 23 of the first isolation sheath 2 and connects to the drive handle 143. In this example, a snake-bone tube is used as the bending body 141, which can be made of thin-walled stainless steel by laser cutting or medical resin molding. The main body of the suction catheter 1 consists of a thin-walled inner tube and an outer tube, and the snake-bone tube bending body 141 is sandwiched between the inner tube and the outer tube of the main body of the suction catheter 1. The traction wires 142 are arranged symmetrically. Two wires extend from the notch 130 at the tail section 13 of the suction conduit 1 and connect to a disc-shaped drive handle 143; the traction wire 142 can be an independent metal wire segment, a polymer wire segment, or it can be combined with the conduit for better drive bending body 141. The illustration of this invention shows the traction wire 142 used in combination with the conduit; the drive handle 143 may have a central hole 1430, a mounting buckle 1431, or other structures to facilitate finger operation or to be combined with the drive unit of the intelligent control system (see embodiment 3). When in use, rotating the disc-shaped drive handle 143 with a finger operates the traction wire 142, which can cause the snake bone tube bending body 141 to bend to one side or the opposite side. The artificial airway 3 with the matching device has a camera component A2 at its tip 31 (see embodiment 3). Figure 1I , Figure 1J This allows the suction port 101 of the suction catheter 1 to accurately reach the sputum S (e.g., under visual guidance) Figure 1J , Figure 1LThe first isolation jacket 2 has connecting parts 24 at both ends, which are respectively sealed to the proximal connector 23 and the distal connector 21. The main body of the first isolation jacket 2 is made of film. The middle part of the first isolation jacket 2 is a movable part 25 that can be stacked or extended axially. In this example, multiple support sheets 251 with central holes 250 are fixedly connected inside the movable part 25 of the first isolation jacket 2. The support sheets 251 are arranged in a circular axially spaced manner to ensure the radial stability of the first isolation jacket 2 during the stacking, compression or extension process. In this example, the proximal connector 23 and the distal connector 21 of the first isolation jacket 2 are each composed of two components that fit together. The connecting part 24 of the first isolation jacket 2 is squeezed and fixed between the two components, eliminating the welding or bonding steps. The connecting part 24 of the first isolation jacket 2 can also be sealed to a component (figure omitted).

[0066] Figure 1G , Figure 1H The visualized suction device shown in a bent state also includes an artificial airway 3 for use. The artificial airway 3 is provided with a suction tube inlet 302 and a side ventilator 303. When in use, the side ventilator 303 is connected to the ventilator tubing (not shown). The distal opening 301 of the artificial airway is located in the trachea when in use. A fixation cuff 31 is provided in the area of ​​the distal opening 301 of the artificial airway. In this example, the tip 111 of the suction tube 1 head section 11 is provided with a camera component A1. The signal line A10 of the camera component A1 passes through the tail section 13 of the suction tube 1 and connects to the corresponding receiving and display device (not shown).

[0067] Figure 1I , Figure 1J This illustrates the case where the artificial airway 3 tip 31 is equipped with a camera component A2, and the sputum S image information acquired by the camera component A2 is displayed on the display screen 58 in real time. Figure 1K , Figure 1L The display screen 58 can be located on a mobile electronic terminal for easy handheld use. The camera component A2 detects sputum S in the tracheal lumen B0 and alerts the nursing staff through alarm sounds, image flashing, etc. The nursing staff holds the artificial airway 3 with one hand and quickly pushes the suction tube 1 into the artificial airway lumen 30 with the other hand. Figure 1H Afterwards, the suction catheter enters the tracheal lumen B0 through the distal opening 301. Following the image instructions, the drive handle 143 is operated to bend the suction catheter tip 11 towards the sputum S. Figure 1I After the negative pressure is turned on, the sputum S is accurately aspirated through the suction port 101. Figure 1J The sputum S is quickly removed from the tracheal lumen B0 through the suction catheter 10, ensuring unobstructed breathing and eliminating the inefficiency and risks of blind suctioning. The first isolation gown 2 isolates the head section 11 and part of the middle section 12 of the suction catheter 1 from contact with the outside air, making it a closed, visual suction device that can be used multiple times for a single patient, significantly saving costs.

[0068] like Figure 1M , Figure 1N , Figure 10 As shown, to further ensure closed-loop, visualized multiple suctioning, after each suctioning operation, a small amount of sputum or other contaminants will adhere to the area near the tip 111 of the suction catheter head section 11 to varying degrees. Therefore, this invention also provides two symmetrical cleaning chambers, specifically structured as follows: The distal connector 21 of the first isolation gown 2 is tubular, with an extension 212 protruding distally. The hollow extension 212 has symmetrical tubular branches 211 with blind ends 2111 extending outwards. Liquid injection holes 2112 are provided on the walls of the tubular branches 211 of the extension 212. The inner cavity of the tubular branches 211 is the cleaning chamber 2110 of the suction catheter head section 11. The distal end of the distal connector 21 of the first isolation gown 2 is connected to an artificial airway connector 22. The hollow artificial airway connector 22 connects to the artificial airway suction catheter inlet 302 during use. In this example, the connection is sealed by inserting the protruding section 221 of the artificial airway connector 22 into the artificial airway suction catheter inlet 302. The extension 212 contains… The cavity 2120 is connected to the inner cavity 30 of the artificial airway. In this structure, the distal connector 21 opening 210 is located at the farthest end of the protruding section 221 of the artificial airway connector 22. In specific use, it is preferred to connect to the liquid input pipeline W1 through the extension section 2113 of the liquid injection hole 2112. Sterile liquid W, such as physiological saline or sterile purified water, enters the cleaning cavity 2110 through the liquid injection hole 2112 to dilute and clean the suction catheter 1 head section 11 located in the cleaning cavity 2110 with adhering sputum and other dirt. Turning on the negative pressure can remove the washed sputum and other dirt with the water flow to ensure the cleanliness of the suction catheter 1 head section 11 when it re-enters the respiratory tract. In this embodiment, there are two symmetrical cleaning cavities 2110 to facilitate flexible operation when the patient turns over. For example, when the patient is in the left lateral decubitus position, the left cleaning cavity 2110 can be used to clean the suction catheter 1 head section 11. However, when the patient is in the right lateral decubitus position, the left cleaning cavity 2110 cannot be used, otherwise the sterile liquid is very likely to flow into the trachea through the artificial airway 3 due to the tilt of the position. Figure 10 The cleaning fluid W used for cleaning is shown in the cleaning chamber 2110 on one side, which submerges the tip 111 of the suction catheter 1. When negative pressure is activated, the cleaning fluid W in the cleaning chamber 2110, along with the area near the tip 111 of the suction catheter 1, will have a small amount of sputum or other dirt adhering to it to varying degrees, which can be quickly removed. Because the bending component 14 of the present invention can bend the tip 11 of the suction catheter 1 towards the cleaning chamber 2110 on one side to facilitate its smooth entry.

[0069] like Figure 1PAs shown, the artificial airway connector 22 at the farthest end of the first isolation gown 2's distal connector 21 is fitted with a cylindrical thin-walled sealing bag 26 that can accommodate at least the head section 11 of the suction catheter 1. The sealing bag 26 and the artificial airway connector 22 are easily detachable. The inner surface of the sealing bag 26 is sealed to the artificial airway connector 22 by weak welding or other methods. The distal end 261 of the sealing bag 26 is a blind end. The inner cavity 260 of the sealing bag can accommodate the head section 11 and part of the middle section 12 of the suction catheter 1, which facilitates the first isolation gown 2 to be combined with the intelligent control system in a stacked and compressed state. When operating in the ward environment, the sealing bag 26 protects the suction catheter 1 from contamination by microorganisms in the air. The sealing bag 26 is removed when finally docked with the artificial airway 3. The extension section 2113 of the liquid injection hole 2112, which communicates with the cleaning chamber 2110, can be sealed with a sealing cap 2114 before use.

[0070] Example 2:

[0071] like Figure 2A , Figure 2B As shown, considering that the artificial airway 3 is mostly used for patients in a coma or under anesthesia, during which the patient usually does not react violently, but once the patient is awake, they may unconsciously touch the visual suction device of this invention. If the visual suction device is too tightly connected to the artificial airway 3, the patient's unconscious "removal" action will affect the stability of the artificial airway 3 in the trachea. Therefore, the distal connector 21 of the tubular first isolation sleeve 2 of this invention is also connected to the second isolation sleeve 4. In this example, based on the structure of embodiment 2, the proximal end of the second isolation sleeve 4 is sealed to the artificial airway connector 22, and the distal end of the second isolation sleeve 4 is connected to the annular connector 41 that fits onto the outside of the artificial airway 3. In use, the artificial airway connector 22 of the first isolation sleeve 2 is connected to the inlet 302 of the artificial airway suction catheter, and the protruding section 221 of the artificial airway connector 22 is inserted into the inlet 302 of the artificial airway suction catheter. The annular connector 41 at the distal end of the second isolation sleeve 4 is connected to the artificial airway connector 22. 41 is positioned at the distal end of the suction catheter inlet 302 of the artificial airway 3. The connection strength between the protruding section 221 of the artificial airway connector 22 of the first isolation gown 2 and the suction catheter inlet 302 of the artificial airway 3 is lower than the connection strength between the annular sleeve 41 at the distal end of the second isolation gown 4 and the outer wall of the artificial airway 3. When the patient or others unknowingly touch the first isolation gown 2 and the suction catheter 1 inside it, even if the protruding section 221 of the artificial airway connector 22 of the first isolation gown 2 is pulled out from the suction catheter inlet 302 of the artificial airway 3 with a large force, the second isolation gown 4 will be stretched and extended, and the annular sleeve 41 at the distal end of the second isolation gown 4 will still be tightly connected to the outer wall of the artificial airway 3, so there is no risk of harmful particles such as microorganisms in the external air entering the inner cavity 30 of the artificial airway 3. The cross-section of this example shows that the signal line A20 of the distal camera component A2 of the artificial airway passes through the proximal tube wall of the artificial airway, and the signal line A20 is connected to the corresponding receiving and display device (figure omitted).

[0072] To facilitate the use of the visual suction device of the present invention in conjunction with its intelligent control system, the annular sleeve 41 at the distal end of the second isolation gown 4 is fitted with a cylindrical thin-walled sealing bag 26 that can at least accommodate the tip section 11 of the suction catheter 1. The sealing bag 26 and the annular sleeve 41 are connected in a way that allows for easy detachment. Figure 2C The second isolation gown 4 shows a sealing bag 26 fitted onto the annular sleeve 41 at the distal end. The sealing bag 26 can accommodate a portion of the head section 11 and the middle section 12 of the suction catheter 1. The inner surface of the sealing bag 26 is sealed to the outer surface of the annular sleeve 41 by means of weak welding or other methods. The distal end 261 of the sealing bag 26 is a blind end. The inner cavity 260 of the sealing bag can accommodate the head section 11 and part of the middle section 12 of the suction catheter 1, which facilitates the first isolation gown 2 to be combined with the intelligent control system in a stacked and compressed state. When operating in the ward environment, the sealing bag 26 protects the suction catheter 1 from contamination by microorganisms in the air. The sealing bag 26 is removed when finally docked with the artificial airway 3. The axial length of the second isolation gown 4 of the present invention is less than that of the first isolation gown 2.

[0073] Example 3:

[0074] like Figures 3A-3H As shown, a visual suction device and its intelligent control system are presented.

[0075] Figure 3A The overall layout of Embodiment 3 is shown. Patient P lies supine on bed D with his head tilted forward. The intelligent control system host 5 of the visual suction device is suspended above the patient's head via a cantilever 56. The cantilever 56 is multi-stage and can move in all directions. After stopping, it stably suspends the intelligent control system host 5 in a stationary state. The suspension load is about 2-8 kg. The cantilever 56 is connected to the column 561 on the ground base 560. The camera component A4, which monitors the surrounding environment of the intelligent control system of the visual suction device, is located on the column 561. The display screen 58 is connected to the intelligent control system host 5 via wiring (not shown) inside the cantilever 56. The artificial airway 3 is inserted into the patient P's airway. Inside the tube, the air inlet 71 and air circuit 72 of the bedside ventilator 7 are connected to the artificial airway 3; the liquid bag W0 is suspended above the infusion hanger F under the slide M, and the liquid input line W1 is connected to the intelligent control system host 5; it also includes a negative pressure container 6 connected to the suction tube, one end of the negative pressure container 6 is connected to the suction tube, and the other end is connected to the negative pressure source line N1. In this example, the negative pressure source line N1 is connected to the central negative pressure system interface N0 that opens on the device belt A; the fifth drive unit 55 is located between the negative pressure source line N1 and the negative pressure container 6. The fifth drive unit 55 of this invention is set for negative pressure control, according to the central processing unit 57 of the intelligent control system (see Figure 3D The command adjusts the negative pressure of the connected negative pressure container 6.

[0076] like Figure 3BRemove the housings 5a and 5b of the intelligent control system host 5. The first isolation gown 2 of the visual suction device is mounted on the arc-shaped guide rail 50. The guide rail is located at the edge of the integrated circular base 501. The first drive unit 51 is connected to the central area of ​​the circular base 501. The servo motor in the first drive unit 51 can drive the circular base 501 to rotate clockwise or counterclockwise, thereby synchronously driving the first isolation gown 2 of the visual suction device to stack and compress or extend and lengthen. The circular base 501 rotates clockwise. When the needle rotates, the first isolation sheath 2 is stacked and compressed, and the suction catheter tip moves into the inner lumen of the artificial airway 3. After the suctioning operation is completed in the trachea, the circular base plate 501 immediately rotates counterclockwise, the first isolation sheath 2 inside the guide rail 50 extends and elongates, and the suction catheter tip retracts into the first isolation sheath 2, isolating it from the outside throughout the process, completely eliminating the risk of airborne microorganisms contaminating the suction catheter; during use, the housing 5a is assembled outside the guide rail 50 to prevent the first isolation sheath 2 and the suction catheter located inside it from falling off, ensuring its stable operation.

[0077] Figure 3C As shown, by removing the housing 5c ​​of the intelligent control system host 5, the second drive unit 52 mounted on the circular base 501 can move synchronously with the first isolation gown 2 of the visual suction device within the circular base 501 and the guide rail 50. The power component 521 of the second drive unit 52 directly acts on the external force bearing component 1311 on the assembly 131 at the beginning of the suction catheter tail section 13 (see...). Figure 3F The external force bearing component 1311 includes a structure including gears, push rods, and grooves. In this example, it is a gear-shaped external force bearing component 1311. The external force bearing component 1311 and the corresponding area of ​​the suction catheter tail section 13 are fixedly connected to each other by welding, bonding, interference fit, etc. The second drive unit 52 can drive the suction catheter head section to rotate in the artificial airway and trachea. Figure 3C A magnified view shows the camera component A2 at the tip of the artificial airway 3. The camera component A2 can be configured to move back and forth for better observation of sputum in the trachea. The signal line A20 of the distal camera component A2 of the artificial airway passes through the proximal wall of the artificial airway and is connected to the host 5 of the intelligent control system. The negative pressure container 6 is provided with an inlet pipe 61 and an outlet pipe 62. The inlet pipe 61 is connected to the external interface 102 of the suction catheter, and the outlet pipe 62 is connected to the fifth drive unit 55. The circular traction wire 142 drive handle 143 is also mounted on the circular base plate 501.

[0078] like Figure 3DRemove the housing 5d of the intelligent control system host 5 to reveal two sets of fourth drive units 54. In this example, the fourth drive unit 54 is a peristaltic pump structure. It receives instructions from the central processing unit 57 and acts on the liquid input pipeline W1 to drive liquid injection into the tubular branch 211 to clean the suction catheter head section located therein. The openable housing 5e fixes the tubular branch 211 area to the intelligent control system host 5. The camera component A3 installed on the intelligent control system host 5 monitors the cleaning of the suction catheter head section inside the transparent tubular branch 211 to prevent abnormal situations such as liquid overflow.

[0079] Figure 3E A partial cross-section of the circular base plate 501 mounted on the intelligent control system host 5 reveals the third drive unit 53. The third drive unit 53 is mounted on the circular base plate 501 and rotates synchronously with it. The third drive unit 53 acts on the drive handle 143 at the proximal end of the traction wire 142, adjusting the relative position of the two traction wires 142 and transmitting it to the bending body of the suction catheter head section, driving the suction catheter head section to bend and more accurately contact the sputum (see the description of the aforementioned embodiment). In order to better fix the suction catheter tail section 13, the circular base plate 501 is provided with a guide rail end section 502 that is continuous with the guide rail 50 body. A part of the suction catheter tail section 13 is embedded in the groove-shaped guide rail end section 502.

[0080] like Figure 3F The positioning block 213 protruding on the distal connector 21 of the first isolation sleeve 2 is shown. The positioning block 213 is used to fix the position in cooperation with the corresponding structure of the housing of the intelligent control system host 5. When the housing 5f is removed, it can be seen that the power component 521 of the second drive unit 52 directly acts on the gear-shaped external force bearing component 1311 on the assembly 131 at the beginning of the suction conduit tail section 13. The assembly 131 is fixedly connected to the circular base plate 501 or the housing of the second drive unit 52, which is a connection that is easy to separate.

[0081] Figure 3G This shows the full view of the visual suction device that is paired with the intelligent control system. Figure 3H This is a schematic diagram showing the separation of the visual suction device from the guide rail 50 on the circular base. The proximal connector 23 of the first isolation gown 2 is connected to the assembly 131. The assembly 131 has a window 1310 and an assembly boss 1312 that matches the corresponding part of the intelligent control system host 5. The gear-shaped external force bearing component 1311 is fixedly connected to the tail section 13 of the suction catheter and is partially located in the window 1310 of the assembly, so as to facilitate interaction with the power output component of the second drive unit 52. A cylindrical thin-walled sealing bag 26 is separated from the artificial airway connector 22 on the distal connector 21 of the first isolation gown 2.

[0082] When the camera component A2 observes sputum in the trachea, the signal is transmitted to the intelligent control system host 5. The artificial intelligence program in the central processing unit 57 autonomously determines whether the sputum needs to be cleared in time based on clinical big data analysis. If it is determined that it needs to be cleared, the instruction is sent to the first drive unit 51, and the suction catheter tip 11 enters the tracheal lumen B0 (see the attached figure of the aforementioned embodiment). At the same time, according to the position of the sputum, the second drive unit 52 instructs the suction catheter tip 11 to rotate a certain angle to facilitate the bending component 14 to be aligned with the direction of the sputum. At this time, the third drive unit drives the suction catheter tip 11 to rotate. 11 bends towards and contacts the sputum S. Based on the sputum characteristics data obtained from image analysis, such as the thickness, shape, color, production rate, and changes with respiration, the artificial intelligence program activates the fifth drive unit 55 to open a moderate negative pressure to suction out the sputum S, thereby achieving visualized, timely, accurate, rapid, and low-damage suctioning. When the intelligent control system host 5 receives a signal from a sputum suction garment, sputum suction blanket, or other sputum suction device (not shown), the present invention can also realize the linkage operation of sputum suction and sputum removal, and evaluate the sputum suction effect in real time based on image analysis, and automatically optimize the parameters of the sputum suction device.

[0083] After each suctioning, the small amount of sputum adhering to the suction catheter tip 11 is removed by the cleaning chamber 2110 structure of the present invention, avoiding drying, crusting, and microbial growth. The artificial intelligence program in the central processing unit 57 can first instruct the third driving unit to bend the suction catheter tip 11, and the first driving unit to make the bent suction catheter tip 11 enter the tubular branch 211 at the distal connector 21 of the first isolation gown 2. Then, it instructs the fourth driving unit 54 to pump liquid into the cleaning chamber 2110 of the tubular branch 211, and then instructs the fifth driving unit 55 to open a moderate negative pressure to suction out the liquid along with the small amount of sputum adhering to the suction catheter tip 11. The intelligent control system can also add ultrasonic or other vibration modules to make it easier for the small amount of sputum adhering to the suction catheter tip 11 to fall off and be removed.

[0084] Unlike traditional suctioning where negative pressure is continuously applied, the suction catheter of this invention activates negative pressure only after the tip of the suction port is aligned with and in contact with the sputum clump. This completely eliminates the risk of damage to the tracheal mucosa caused by negative pressure. The negative pressure value can be matched according to the sputum viscosity indicated by the image, avoiding excessive suction of gas and alveolar ventilation / perfusion ratio disturbances caused by excessive negative pressure. Due to the visualization, automation, and intelligent control, the residence time of the suction catheter 1 in the airway of this invention is greatly shortened, from the traditional 15 seconds to less than 8 seconds in many scenarios, greatly reducing the risk of hypoxia in human tissue cells caused by increased resistance due to the suction catheter remaining in the airway.

[0085] This invention can be combined with existing clinical airway humidification procedures to initiate visual suctioning as soon as possible after sputum is diluted, reducing the probability of viscous sputum formation and further shortening the time of a single suctioning session; the images in the airway and the suctioning operation are displayed in real time on the nursing station display screen, which is convenient for medical staff to monitor and analyze, and the visual suctioning device can also be controlled manually via the display screen or buttons.

[0086] The visualization camera component is set at the tip of the suction catheter, becoming a flexible bronchoscope, which facilitates the insertion of the suction catheter into the bronchus to complete deep sputum suction. It can also be completed autonomously by an intelligent control system with implanted artificial intelligence, which greatly improves efficiency and reduces the burden on medical staff.

[0087] In the embodiment of the present invention, where the distal connector of the first isolation gown is connected to the second isolation gown, the second isolation gown is connected to the artificial airway through the distal annular sleeve. When the patient or others unknowingly touch the first isolation gown and the suction catheter inside it, even if the force is strong enough to dislodge the distal connector of the first isolation gown from the inlet of the suction catheter in the artificial airway, the second isolation gown is stretched and extended, and the distal annular sleeve of the second isolation gown is still connected to the artificial airway in a closed manner, eliminating the risk of harmful particles such as microorganisms in the external air entering the artificial airway.

[0088] The intelligent control system of the visual suction device is equipped with camera components for monitoring the cleaning chamber of the suction catheter tip, camera components for monitoring the operation of the drive unit, camera components for monitoring the liquid status in the negative pressure container, camera components for monitoring the connection status of the first isolation gown and / or the second isolation gown with the artificial airway, camera components for monitoring the patient's facial condition and changes in the position of the artificial airway, and camera components for monitoring the surrounding environment of the intelligent control system of the visual suction device, which further ensure the good operation of the present invention.

Claims

1. A visual suction device, comprising a slender suction catheter (1) and a flexible first isolation sheath (2) covering the suction catheter (1), the first isolation sheath (2) being connected to a hollow distal connector (21) for use with an artificial airway, the head section (11) and middle section (12) of the suction catheter (1) being completely or mostly covered by the first isolation sheath (2) in an extended state, the head section (11) of the suction catheter (1) protruding from the opening (210) of the distal connector (21) of the first isolation sheath (2) when the moving part (25) of the first isolation sheath (2) is axially stacked and compressed, the tail section (13) of the suction catheter (1) protruding from the proximal connector (23) of the first isolation sheath (2) and finally connected to a negative pressure container (6), the suction port (101) being located at the tip (111) of the head section (11) of the suction catheter (1) and communicating with the lumen (10) of the suction catheter, characterized in that, The proximal connector (23) of the first isolation sheath (2) is sealed to at least one circumferential portion of the tail section (13) of the suction catheter (1). The tail section (13) of the suction catheter (1) extends out from the proximal connector (23) of the first isolation sheath (2). An external force applied to the tail section (13) of the suction catheter can drive the head section (11) of the suction catheter (1) to rotate and / or move forward and backward. It also includes a bending assembly (14) that drives the head section (11) of the suction catheter (1) to tilt at least to one side. The bending assembly (14) is composed of a bending body (141), a traction line (142), and a drive handle (143) that are integrated together. The bending body (141) is located at the head section (11) of the suction catheter (1). The traction line (142) is distributed along the suction catheter (1). The distal end of the traction line (142) is connected to the bending body (141). The proximal end of the line (142) extends from the proximal connector (23) area of ​​the first isolation sheath (2) and connects to the drive handle (143); the distal connector (21) of the first isolation sheath (2) is tubular and protrudes into an extension (212) in the distal direction. The extension (212) has a tubular branch (211) with a blind end (2111) on each side. The tubular branch (211) has a liquid injection hole (2112) on its wall. The inner cavity of the tubular branch (211) is the cleaning chamber (2110) of the head section (11) of the suction conduit (1). The distal end of the extension (212) is connected to a hollow artificial airway connector (22); the tip (111) of the head section (11) of the suction conduit (1) is provided with a camera component (A1) and / or the tip of the artificial airway (3) is provided with a camera component (A2).

2. The visual suction device according to claim 1, characterized in that, The first isolation cover (2) has multiple support sheets (251) with central holes (250) fixedly connected inside the moving part (25), and the support sheets (251) are arranged in a circular axial interval.

3. The visual suction device according to claim 1, characterized in that, The hollow distal connector (21) or its extension area of ​​the first isolation sheath (2) is fitted with a sealing bag (26) that can at least accommodate the head section (11) of the suction catheter (1), and the sealing bag (26) and the distal connector (21) are connected in an easily detachable manner.

4. The visual suction device according to claim 1, characterized in that, The bending body (141) of the bending component (14) is connected to two tension lines (142) that are symmetrically distributed on the left and right sides.

5. A visual suction device according to claim 1, characterized in that, The first isolation sleeve (2) which is tubular is connected to a second isolation sleeve (4) at its distal end connector (21). The distal end of the second isolation sleeve (4) is provided with an annular sleeve (41) that communicates with the artificial airway (3).

6. The visual suction device according to claim 1, characterized in that, It also includes an artificial airway (3), with a camera component (A2) at the distal end of the artificial airway.

7. A visual suction device according to claim 1, characterized in that, It also includes a negative pressure container (6) connected to the suction conduit (1), with one end of the negative pressure container (6) connected to the suction conduit (1) and the other end connected to the negative pressure source pipeline (N1).

8. An intelligent control system for a visual suction device, used to control the visual suction device according to any one of claims 1-7, characterized in that, The system includes a control system host (5), a cantilever (56), a central processing unit (57), a guide rail (50), and one or more of the following: a display screen (58), a first drive unit (51), a second drive unit (52), a third drive unit (53), a fourth drive unit (54), and a fifth drive unit (55). The guide rail (50) accommodates the suction catheter (1) and a first isolation gown (2) covering the suction catheter (1). The first drive unit (51) drives the guide rail (50) to move, thereby driving the visual suction device to move. The second drive unit (52) acts on the tail section (13) of the suction catheter (1) to drive... The suction catheter (1) rotates, the third drive unit (53) acts on the drive handle (143) at the proximal end of the traction wire (142), the fourth drive unit (54) acts on the liquid input line (W1) to drive the liquid to be injected into the cleaning chamber (2110) of the head section (11) of the suction catheter (1), and the fifth drive unit (55) determines whether the external negative pressure is connected to the lumen (10) of the suction catheter; the central processing unit (57) receives image information from the camera component (A1) of the suction catheter (1) and / or the camera component (A2) on the artificial airway (3), and starts each drive unit to complete the suction action based on the sputum (S) image analysis.

9. The intelligent control system for the visual suction device according to claim 8, characterized in that, The guide rail (50) is integrated with the circular base plate (501). The second drive unit (52) and the third drive unit (53) are directly connected to the guide rail (50) and / or connected to the circular base plate (501) and move synchronously. The first drive unit (51) acts on the circular base plate (501) connected to the guide rail (50) to drive the guide rail (50) to rotate clockwise or counterclockwise.

10. The intelligent control system for the visual suction device according to claim 8, characterized in that, It also includes one or more of the following: a camera assembly (A3) for monitoring the cleaning chamber (2110) of the tip (11) of the suction catheter (1); a camera assembly for monitoring the operation of the drive unit; a camera assembly for monitoring the liquid status in the negative pressure container (6); a camera assembly for monitoring the connection status of the first isolation gown (2) and / or the second isolation gown (4) with the artificial airway (3); a camera assembly for monitoring the patient's facial condition and changes in the position of the artificial airway (3); and a camera assembly (A4) for monitoring the surrounding environment of the control system of the visual suction device.

Images