A visual suction device

Abstract

This utility model discloses a visual suction device, relating to the field of medical device technology. The device includes an insertion part and an operating part. A camera, a first cold light source, and a second cold light source are disposed at the distal end of the insertion part, distributed around the camera. The insertion part also has a suction channel. The operating part is connected to the proximal end of the insertion part and is electrically connected to the camera, the first cold light source, and the second cold light source. The suction channel extends from the distal end of the insertion part to the proximal end. When the insertion part is inserted into the patient's body, the first and second cold light sources illuminate the patient's body. Compared to hot light sources, cold light sources provide stable and uniform light, ensuring that medical personnel can clearly observe the lesion site through the camera in the insertion part during surgery or examination. The cooperation between the first and second cold light sources ensures sufficient illumination within the camera's field of view.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a visual sputum suction device. Background Technology

[0002] Suction catheters play a vital role in the medical field to clear postoperative respiratory secretions or to help patients keep their airways clear. They can remove large amounts of secretions that may be generated in the patient's airway, including sputum, blood, pus, etc.

[0003] Conventional tracheal suctioning uses a single-channel suction catheter for shallow tracheal suctioning, relying mainly on the operator's subjective feeling and experience for blind intubation. This can lead to problems such as tracheal mucosal damage, incomplete suctioning, and prolonged suctioning time. Visual suction catheters have emerged to address this need. They are typically equipped with cameras or video endoscopic chambers, enabling real-time visualization of the airway.

[0004] However, due to limitations in the lighting of the visual suction tube, the camera of the visual suction tube cannot clearly observe the lesion site and secretions, which affects the operation of medical staff and thus leads to poor suctioning effect. Utility Model Content

[0005] In view of the shortcomings of the aforementioned related technologies, this application provides a visual suction device to solve the above-mentioned technical problems.

[0006] This application provides a visual suction device, which includes an insertion part and an operation part. The distal end of the insertion part is provided with a camera, a first cold light source and a second cold light source. The first cold light source and the second cold light source are distributed around the camera. The insertion part also has a suction channel. The operation part is connected to the proximal end of the insertion part and is electrically connected to the camera, the first cold light source and the second cold light source. The suction channel extends from the distal end of the insertion part to the proximal end of the insertion part.

[0007] In one embodiment of this application, the camera and the suction channel are arranged adjacent to each other, and the first cold light source and the second cold light source are respectively arranged on both sides of the line connecting the camera and the suction channel.

[0008] In one embodiment of this application, a first cold light source is used to emit a first light ray, and a second cold light source is used to emit a second light ray. The first light ray and the second light ray intersect and form an intersection point, which is located within the field of view of the camera.

[0009] In one embodiment of this application, the intersection point is located within the depth of field of the camera and is located on the optical axis of the camera.

[0010] In one embodiment of this application, the intersection point is located on the axis of the suction channel.

[0011] In one embodiment of this application, the insertion part includes a bent part and a connecting part. One end of the connecting part is connected to the operating part, and the other end is connected to the bent part. There is an included angle between the bent part and the connecting part.

[0012] In one embodiment of this application, the included angle between the extension lines of the bent portion and the connecting portion is 15°-20°.

[0013] In one embodiment of this application, the operating unit has a controller connected to the suction channel, and the controller is used to adjust the pressure value in the suction channel.

[0014] In one embodiment of this application, the length direction of the operating part is in the same direction as the extension direction of the insertion part.

[0015] In one embodiment of this application, the thickness of the tube wall forming the suction channel is 0.25mm-0.3mm.

[0016] In one embodiment of this application, the operation unit has a transmission interface, which is electrically connected to a first cold light source, a second cold light source, and a camera. The visual suction device also includes a data cable, which has a first end and a second end that are far apart from each other. The first end is used to be detachably connected to the transmission interface, and the second end is provided with a first connecting line and a second connecting line that are electrically connected to the first end. The first connecting line is used to be electrically connected to a power supply device, and the second connecting line is used to transmit video signals.

[0017] In one embodiment of this application, the camera is configured as a CMOS camera with an angular resolution of 10mm.

[0018] In one embodiment of this application, a chamfer is provided on the peripheral side of the distal end of the insertion portion.

[0019] In one embodiment of this application, the field of view of the camera is 100°-110°.

[0020] In one embodiment of this application, the depth of field of the camera is 3mm-100mm.

[0021] The technical solution adopted in this invention achieves the following beneficial effects: the insertion part is inserted into the patient's body, and the first and second cold light sources illuminate the patient's body. Compared with hot light sources, cold light sources can provide stable and uniform light, ensuring that medical staff can clearly observe the lesion site through the camera of the insertion part during surgery or examination. Furthermore, cold light sources can produce light at lower temperatures, thereby reducing adverse effects on the patient. In addition, the first and second cold light sources are distributed around the camera, and their cooperation ensures sufficient illumination within the camera's field of view, avoiding interference with medical staff's operation due to lighting effects, and improving the suctioning effect of the visual suction device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a visual suction device shown in an exemplary embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the insertion part shown in an exemplary embodiment of this application;

[0025] Figure 3 This is a schematic diagram illustrating the structure of another insertion portion, as shown in an exemplary embodiment of this application;

[0026] Figure 4 This is a schematic diagram illustrating another insertion part structure in an exemplary embodiment of this application;

[0027] Figure 5 This is a schematic diagram illustrating yet another type of insertion part, as shown in an exemplary embodiment of this application;

[0028] Figure 6 This is a schematic diagram illustrating yet another type of insertion part, as shown in an exemplary embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the insertion part from another perspective, illustrating an exemplary embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the structure of a data line shown in an exemplary embodiment of this application.

[0031] In the diagram: 1. Visual suction device; 100. Insertion part; 110. Camera; 120. First cold light source; 130. Second cold light source; 140. Suction channel; 150. Bending part; 160. Connecting part; 200. Operation part; 210. Controller; 220. Transmission interface; 230. Suction connector; 300. Data cable; 310. First end; 320. Second end; 321. First connecting line; 322. Second connecting line. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0034] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".

[0035] Suction catheters play a vital role in the medical field to clear postoperative respiratory secretions or to help patients keep their airways clear. They can remove large amounts of secretions that may be generated in the patient's airway, including sputum, blood, pus, etc.

[0036] Conventional tracheal suctioning uses a single-channel suction catheter for shallow tracheal suctioning, relying mainly on the operator's subjective feeling and experience for blind intubation. This can lead to problems such as tracheal mucosal damage, incomplete suctioning, and prolonged suctioning time. Visual suction catheters have emerged to address this need. They are typically equipped with cameras or video endoscopic chambers, enabling real-time visualization of the airway.

[0037] However, due to limitations in the lighting of the visual suction tube, the camera of the visual suction tube cannot clearly observe the lesion site and secretions, which affects the operation of medical staff and thus leads to poor suctioning effect.

[0038] This application provides a visual suction device 1, please refer to... Figure 1 The visual suction device 1 includes an insertion part 100 and an operation part 200, with the operation part 200 connected to the proximal end of the insertion part 100.

[0039] like Figure 1As shown, the insertion part 100 can be a slender tubular structure, allowing it to extend into a human body cavity, such as a bronchus. The visual suction device 1 is connected to a negative pressure source, thereby enabling suctioning operations.

[0040] Please see Figure 2 The distal end of the insertion part 100 is provided with a camera 110, a first cold light source 120, and a second cold light source 130. The first cold light source 120 and the second cold light source 130 are distributed around the camera 110. The light emitted by the first cold light source 120 and the second cold light source 130 can be presented within the field of view of the camera 110, thereby improving the image acquisition effect of the camera 110. Unlike a single illumination source, the first cold light source 120 and the second cold light source 130 work together to eliminate blind spots within the field of view of the camera 110. For example, the first cold light source 120 and the second cold light source 130 are distributed on opposite sides of the camera 110 so that the camera 110 can obtain a clearer and brighter image.

[0041] Furthermore, the color temperature of the emitted light from the first cold light source 120 and the second cold light source 130 is 5000K-7000K, such as 5000K, 6000K, 7000K, etc., and this embodiment does not impose any limitation. This configuration of the first cold light source 120 and the second cold light source 130 ensures that the light within the field of view of the camera 110 is bright, clear, and has high color fidelity during suctioning surgery. Simultaneously, the emitted light from the first cold light source 120 and the second cold light source 130 has a pure color, no stray light, strong transparency, good color rendering, and a strong three-dimensional effect in the surgical field of view, helping doctors to more accurately assess the patient's condition.

[0042] In this embodiment, please continue to refer to Figure 2 The camera 110 is configured as a Complementary Metal-Oxide-Semiconductor (CMOS) camera. For example, the angular resolution of the camera 110 is configured to be 10mm, which determines the camera 110's ability to capture image details. Figure 3 As shown, the field of view of camera 110 (e.g.) Figure 3The angle α (as shown in the figure) can be configured to 100°-110°, such as 100°, 105°, 110°, etc., and this implementation does not impose any limitations. The field of view angle represents the angle formed by the two edges of the maximum range of the image of the measured target that can be seen through the lens with the camera 110 as the vertex. Understandably, by adjusting the internal structure of the camera 110 and other optical components, the specific parameters of the camera 110 can be changed to make it suitable for special implementation scenarios. This setting allows the camera 110 to capture higher resolution images, with clearer details in the image, reduced image distortion, and ensures a more realistic and accurate image. This setting also ensures optimal angular resolution at the center of the field of view, which is helpful for subsequent operations and processing.

[0043] In addition, please see Figure 3 The depth of field of the camera 110 is 3mm-100mm. Figure 3 The area between L1 and L2 in the diagram represents the approximate depth of field of camera 110. Depth of field refers to the relatively clear imaging range before and after the focus point of camera 110; it is a range value. When the depth of field is set too large, all parts within the field of view are clearly displayed, making it difficult to determine the distance within the cavity. When the depth of field is set too small, the observable range of camera 110 is narrow, reducing its application range. A camera 110 with an appropriate depth of field can better observe clear, layered images, assisting medical personnel in treatment procedures.

[0044] Preferably, the distal end of the insertion portion 100 has a circumferential chamfer, and further, the distal end of the insertion portion 100 has a circumferential rounded corner. For example, the distal end of the insertion portion 100 is cut or ground to form a smooth transition angle. This arrangement reduces friction and scratching between the endoscope and the inner wall of the cavity, thereby protecting the inner wall of the cavity from damage while ensuring smooth insertion and movement of the endoscope.

[0045] Understandably, to further improve the lighting effect, more cold light sources, such as a third cold light source, a fourth cold light source, etc., can be provided at the far end of the insertion part 100, but this embodiment will not elaborate on them.

[0046] In this embodiment, please refer to the previous section again. Figure 2 The insertion part 100 also has a suction channel 140, which extends from the distal end of the insertion part 100 to the proximal end. The suction channel 140 can be connected to a negative pressure source, including but not limited to a negative pressure suction pump, a vacuum generator, etc. The negative pressure source can provide a negative pressure environment for the suction channel 140. The distal end of the insertion part 100 directly contacts or is adjacent to the object to be suctioned, including but not limited to sputum and other secretions. The suction channel 140 can directly suction sputum out of the body, thereby maintaining airway patency.

[0047] Furthermore, please continue to refer to Figure 2 The camera 110 and the suction channel 140 are arranged adjacent to each other. This adjacent arrangement allows for a smaller size configuration of the insertion part 100, improving its passability. The first cold light source 120 and the second cold light source 130 are respectively disposed on both sides of the line connecting the camera 110 and the suction channel 140. For example, the first cold light source 120 and the second cold light source 130 are respectively disposed on both sides of the line connecting the optical axis of the camera 110 and the axis of the suction channel 140. The optical axis of the camera 110 (e.g., ...) Figure 3 As shown in L3, this refers to the line connecting the camera 110 and the subject (i.e., the object being photographed, such as sputum). It determines the path of light propagation from the lens into the camera 110, and its optical axis is parallel to the focal plane (e.g., the focal plane). Figure 3 (As shown in L4) Vertically. This arrangement allows the first cold light source 120 and the second cold light source 130 to be positioned on opposite sides of the camera 110 and the suction channel 140, respectively. The first cold light source 120 and the second cold light source 130 can clearly illuminate the area in front of the suction channel 140, eliminating blind spots in front of the suction channel 140. Furthermore, this arrangement also enables the camera 110 to capture brighter and clearer images for medical personnel, improving the user experience.

[0048] Please see Figure 4 The first cold light source 120 is used to emit the first light beam (such as...). Figure 4 As shown in L5), the second cold light source 130 is used to emit a second beam (as shown in L5). Figure 4 As shown in L6), both the first and second rays are cold light. Due to their low heat output, cold light sources can operate stably for a long time without causing significant temperature changes in the surrounding environment, ensuring the basic lighting needs of the target area. Furthermore, through their precise beam control, they reduce unnecessary light pollution, making observation clearer.

[0049] Please continue reading. Figure 4 The first cold light source 120 and the second cold light source 130 are tilted relative to the axis of the camera 110 so that the first and second light rays intersect and form an intersection point. This intersection point is located within the field of view of the camera 110, i.e., within the field of view angle of the camera 110. When the two light rays intersect, the light intensity at the intersection point is significantly enhanced due to the superposition of the two beams. Due to the interference and superposition effects of the light waves, the brightness at the intersection point is much higher than the surrounding area, creating a focused illumination effect. By placing the intersection point at the center of the field of view of the camera 110 or a key observation point, optimal illumination can be ensured for that area, facilitating detailed and accurate observation of the target by medical personnel. The key observation point can be located in front of the suction channel 140.

[0050] Furthermore, please continue to refer to Figure 4 The intersection point is located within the depth of field of the camera 110, which ensures that the intersection point of the focused illumination is within the clear imaging range of the camera 110. For example, the depth of field of the camera 110 can be 3mm-100mm, and the distance between the intersection point and the camera 110 along the axial direction of the insertion part 100 can be 50mm. While providing enhanced illumination at the intersection point, this arrangement allows the camera 110 to clearly acquire image information of the object to be aspirated located at the intersection point.

[0051] And please see Figure 5 , Figure 5 The intersection point can be located on the optical axis of camera 110. Due to the limitations of the magnification of the central and edge areas of the lens light's optical elements, the image around the perimeter of the field of view of camera 110 may be distorted, while the central image is usually better. This setting allows the intersection point to be located in the central area of ​​the field of view of camera 110, resulting in better image quality at the intersection point. In addition, the intersection point has enhanced illumination, further improving the acquisition effect of camera 110 and enhancing the usability of the visual suction device 1.

[0052] In another embodiment, please refer to Figure 6 , Figure 6 In this context, D1 refers to the intersection point between the first and second light rays. This intersection point is located within the field of view of the camera 110 and on the axis of the suction channel 140. Furthermore, the first cold light source 120 and the second cold light source 130 are positioned on opposite sides of the camera 110. This arrangement prevents interference between the first and second cold light sources 120 and 130 with the suction channel 140, ensuring a larger cross-sectional area for the suction channel 140. The first light ray emitted from the first cold light source 120 and the second light ray emitted from the second cold light source 130 intersect on the axis of the suction channel 140, with the intersection point located within the field of view of the camera 110. This arrangement allows for higher light intensity in front of the suction channel 140 compared to other locations, enabling medical personnel to determine the relative position between the distal end of the suction channel 140 and the object to be suctioned using image information from the camera 110, thus improving the effectiveness of the visualized suction catheter.

[0053] Furthermore, because the light intensity at the intersection point is significantly higher than at other locations, medical staff can clearly obtain the relative position of the intersection point through the camera 110. Therefore, the intersection point serves as an identifier; it can be located at the furthest point of the effective suction range of the suction channel 140, allowing medical staff to determine whether the suction channel 140 can aspirate the object. The effective suction range of the suction channel 140 can be designed and calculated based on specific suction pressure, the aperture and shape of the suction channel 140, etc., which will not be elaborated in this embodiment. When medical staff observe the object to be aspirated through the camera 110, they adjust the orientation and relative position of the distal end of the insertion part 100 so that the intersection point coincides with the object to be aspirated. At this point, the suction channel 140 can smoothly act on the object, enabling normal suctioning of the subsequent visual suction device 1. This setting clearly determines the effective range of the suction channel 140, allowing medical staff to perform corresponding operations based on this information.

[0054] Preferably, the distance between the distal end of the suction channel 140 and the intersection point is 5mm-20mm, such as 5mm, 10mm, 15mm, 20mm, etc., and this embodiment does not impose a limitation. If this distance is set too large, the suction range of the suction channel 140 will be limited, and the intersection point will be located outside the suction range of the suction channel 140, thus failing to serve an identification function. If this distance is set too small, the intersection point may be located outside the field of view of the camera 110, also failing to serve an identification function. An appropriate distance can effectively identify the suction range of the suction channel 140 and also allow the camera 110 to clearly observe the specific situation, improving the operational efficiency of medical personnel.

[0055] In another configuration, the camera 110 is tilted relative to the axis of the suction channel 140. The optical axis of the camera 110 intersects the axis of the suction channel 140 at a first point, and the emitted light rays from the first cold light source 120 and the second cold light source 130 intersect at a second point. The first and second points coincide. This configuration ensures that the second intersection point formed by the emitted light rays from the first cold light source 120 and the second cold light source 130 is located at the center of the field of view of the camera 110, allowing the camera 110 to observe a clear, undistorted image. It also serves to mark the maximum suction range of the suction channel 140.

[0056] The bronchus contains multiple curved cavities, and the insertion part 100 is inserted into the bronchus. Due to the limited fit between the inserted portion of the insertion part 100 and the cavities, the distal orientation of the insertion part 100 is not easily adjustable. In this embodiment, please refer to... Figure 7The insertion part 100 may include a bent part 150 and a connecting part 160. One end of the connecting part 160 is connected to the operating part 200, and the other end is connected to the bent part 150. An angle exists between the bent part 150 and the connecting part 160. Medical personnel can rotate the operating part 200, which in turn rotates the connecting part 160, thereby changing the distal orientation of the bent part 150 and adjusting the distal orientation of the insertion part 100. Furthermore, the bent part 150 can be configured to be shorter, with a smaller radius of rotation, thus avoiding interference with body cavities and improving the operational performance of the visual suction device 1.

[0057] Preferably, the included angle between the extensions of the bent portion 150 and the connecting portion 160 (e.g. Figure 7 The angle (β shown in the figure) can be 15°-20°, such as 15°, 18°, 20°, etc., and this embodiment does not impose any limitation. If the included angle is set too large, the passage of the insertion part 100 will be greatly reduced, making it difficult for the insertion part 100 to be smoothly inserted into the cavity. If the included angle is set too small, when medical staff rotate the operating part 200, the distal end of the insertion part 100 will rotate only slightly, resulting in poor operating effect. An appropriate included angle can improve the rotation effect of the insertion part 100 without reducing the passage of the insertion part 100.

[0058] In this embodiment, the wall thickness of the suction channel 140 can be 0.25mm-0.3mm, such as 0.25mm, 0.28mm, 0.3mm, etc., and this embodiment is not limited to this. It is understood that the suction channel 140 can be formed by a suction tube, and thus the wall thickness is the same as the wall thickness of the suction tube. When the wall thickness is too thin, the wall strength is low, and the wall is prone to collapse during suction, thus hindering subsequent suction operations. When the wall thickness is too thick, the size of the insertion part 100 is limited, resulting in a reduction in the cross-sectional area of ​​the suction channel 140 and a decrease in the suction effect of the suction channel 140. A suitable wall thickness can ensure the safety and suction effect of the suction channel 140, improving the performance of the visual suction device 1. Furthermore, the existing wall thickness is 0.4mm-0.5mm, and the wall thickness of this embodiment is significantly smaller than the existing wall thickness, resulting in a smaller wall thickness configuration, which can increase the cross-sectional area of ​​the suction channel 140.

[0059] In this embodiment, please refer to the previous section again. Figure 1The operating unit 200 may include an ergonomic handle. Furthermore, the handle has one or more grooves that can fit the hands of medical personnel, facilitating grip and increasing the contact area between the hand and the operating unit 200, thus improving the gripping effect. The operating unit 200 is electrically connected to the camera 110, the first cold light source 120, and the second cold light source 130. Specifically, the operating unit 200 supplies power to the camera 110, the first cold light source 120, and the second cold light source 130, and / or transmits signals between the operating unit 200 and the camera 110. For example, the operating unit 200 can acquire image signals from the camera 110 and display them on a display device.

[0060] For further details, please refer to Figure 1 as well as Figure 8 The operation unit 200 has a transmission interface 220, which is electrically connected to the first cold light source 120, the second cold light source 130 and the camera 110. The transmission interface 220 can integrate power supply and signal transmission functions. This setting can reduce the number of interfaces of the operation unit 200 and improve the ease of use of the operation unit 200.

[0061] The visual suction device 1 also includes a data cable 300, which has a first end 310 and a second end 320 that are spaced apart from each other. The first end 310 is detachably connected to the transmission interface 220. The second end 320 is equipped with a first connecting line 321 and a second connecting line 322 that are electrically connected to the first end 310. The first connecting line 321 is electrically connected to a power supply device, which supplies power to the transmission interface 220, and in turn to the first cold light source 120, the second cold light source 130, and the camera 110, ensuring that all three can function normally. The second connecting line 322 is used to transmit video signals and is electrically connected to a display device (not shown), such as a display screen or portable monitor. The data cable 300 can separate power supply and data transmission for different devices, improving the effectiveness of the data cable 300.

[0062] Preferably, the length direction of the operating part 200 is the same as the extension direction of the insertion part 100. This arrangement enables the operating part 200 and the insertion part 100 to be linked, allowing medical personnel to adjust the specific orientation of the distal end of the insertion part 100 simply by rotating their wrist, so that the insertion part 100 can enter narrower and more curved cavities, thereby improving the operational effectiveness of the visual suction device 1.

[0063] In this embodiment, please continue to refer to Figure 1The operating unit 200 includes a controller 210 connected to the suction channel 140. The controller 210 is used to adjust the pressure value within the suction channel 140. For example, the controller 210 is slidably disposed relative to the suction channel 140, and its end abuts against the wall forming the suction channel 140. Medical personnel operate the controller 210, which selectively squeezes or separates the wall to change the opening of the suction channel 140, thereby adjusting the pressure value within the suction channel 140. When there is no sputum awaiting suction, medical personnel close the suction channel 140 or reduce the pressure value within it using the controller 210 to reduce energy loss and prevent other substances from clogging the suction channel 140. When there is sputum awaiting suction, medical personnel open the suction channel 140 or increase the pressure value within it using the controller 210 to perform sputum suction.

[0064] In addition, the operating unit 200 is also provided with a suction connector 230, which is connected to the suction channel 140. The suction connector 230 is used to connect to the negative pressure device. When the negative pressure device starts to work, negative pressure can be generated in the suction channel 140.

[0065] The technical solution adopted in this utility model can achieve the following beneficial effects: the insertion part 100 is inserted into the patient's body, and the first cold light source 120 and the second cold light source 130 illuminate the patient's body. Compared with the hot light source, the cold light source can provide stable and uniform light, ensuring that medical staff can clearly observe the lesion site through the camera 110 of the insertion part 100 during surgery or examination. Furthermore, the cold light source can produce light at a lower temperature, thereby reducing adverse effects on the patient. In addition, the first cold light source 120 and the second cold light source 130 are distributed around the camera 110, and the cooperation between the two ensures sufficient illumination within the field of view of the camera 110, avoiding interference with the operation of medical staff due to lighting effects, and improving the suctioning effect of the visual suction device 1.

[0066] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0067] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0068] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A visualized sputum suction device, characterized by, include: The insertion part has a camera, a first cold light source and a second cold light source at its distal end. The first cold light source and the second cold light source are distributed around the camera. The insertion part also has a suction channel. as well as An operating unit is connected to the proximal end of the insertion unit and is electrically connected to the camera, the first cold light source, and the second cold light source. The suction channel extends from the distal end of the insertion part to the proximal end of the insertion part. The insertion part includes a bent part and a connecting part. One end of the connecting part is connected to the operating part, and the other end is connected to the bent part. There is an angle between the bent part and the connecting part, and the angle between the extension lines of the bent part and the connecting part is 15°-20°.

2. The visualizing sputum suction device according to claim 1, characterized in that, The camera and the suction channel are arranged adjacent to each other, and the first cold light source and the second cold light source are respectively located on both sides of the line connecting the camera and the suction channel.

3. The visualized suctioning device according to claim 1 or 2, characterized in that, The first cold light source is used to emit a first light ray, and the second cold light source is used to emit a second light ray. The first light ray and the second light ray intersect and form an intersection point, which is located within the field of view of the camera.

4. The visualized suctioning device of claim 3, wherein, The intersection point is located within the depth of field of the camera, and the intersection point is located on the optical axis of the camera, and / or the intersection point is located on the axis of the suction channel.

5. The visualizing sputum suction device of claim 1, wherein, The operating unit has a controller connected to the suction channel, and the controller is used to adjust the pressure value in the suction channel.

6. The visualized suctioning device of claim 5, wherein, The length direction of the operating part is the same as the extension direction of the insertion part; And / or, the thickness of the tube wall forming the suction channel is 0.25mm-0.3mm.

7. The visualizing sputum suction device of claim 1, wherein, The operating unit has a transmission interface, which is electrically connected to the first cold light source, the second cold light source, and the camera. The visual suction device also includes a data cable with a first end and a second end that are far apart from each other. The first end is detachably connected to the transmission interface, and the second end is provided with a first connecting line and a second connecting line that are electrically connected to the first end. The first connecting line is electrically connected to a power supply device, and the second connecting line is used to transmit video signals.

8. The visual suction device according to claim 1, characterized in that, The camera is configured as a CMOS camera, and the angular resolution of the camera is 10mm; And / or, the peripheral chamfer of the distal end of the insertion portion is provided; And / or, the field of view of the camera is 100°-110°; And / or, the depth of field of the camera is 3mm-100mm.

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