A visible laryngeal mask with an attracting function

Abstract

The present invention discloses a visible laryngeal mask with an aspiration function, which includes a laryngeal mask body, a bent tube, a camera, a flushing tube and an aspiration tube. The laryngeal mask body is connected to one end of the bent tube, and the laryngeal mask body is formed with a recessed part. The bent tube has a first channel, a second channel and a third channel. The recessed part is formed with a ventilation port communicated with the first channel. The flushing tube and the aspiration tube pass through the second channel and extend out of the recessed part. The camera is installed on one side of the ventilation port. The head end of the flushing tube faces the camera. The aspiration tube is used to aspirate the liquid for flushing the secretions of the camera. When it is convenient for medical staff to observe through the camera that there is liquid accumulation in the recessed part of the laryngeal mask body, the present invention can suck out the secretions through the aspiration tube located in the second channel, without disconnecting the visible laryngeal mask from the ventilator and inserting the aspiration tube for aspiration operation.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to a visual laryngeal mask with a suction function. Background Art

[0002] During general anesthesia surgery, doctors will use laryngeal masks to establish artificial ventilation tubes for patients. Due to various reasons, the laryngeal masks may be improperly inserted, offset, shifted, and other abnormalities during use. Most of the laryngeal masks on the market now still use ordinary laryngeal masks. When an abnormality occurs, it is necessary to use an endoscope to check the cause of the abnormality, and then the doctor can deal with it. However, these processes are complicated, the operation time is long, and the cost is high. The visual laryngeal mask is to add a camera to the ordinary laryngeal mask, so that the laryngeal mask insertion process, the surgical process and the replacement process of the tracheal intubation after the operation can be observed and monitored in real time, thereby reducing the time of laryngeal mask insertion and improving the success rate of laryngeal mask insertion, monitoring various abnormalities of the artificial airway during the operation, and reducing the time and cost of processing.

[0003] Existing video laryngeal masks generally suffer from poor observation quality, lack of secretion suction and camera flushing functions, resulting in poor camera observation during use. Furthermore, if excessive patient secretions are observed, the mask must be disconnected from the ventilator before the patient's secretions can be suctioned through the ventilation channel. This increases the difficulty for medical staff and can also cause harm to the patient due to hypoxia. Therefore, resolving the challenges of poor observation quality and the need to disconnect the mask from the ventilator to suction patient secretions has become a pressing technical issue in the field. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a visual laryngeal mask with suction function.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A visual laryngeal mask with a suction function comprises a laryngeal mask body, a curved tube, a camera, a flushing tube and a suction tube, wherein the laryngeal mask body is connected to one end of the curved tube, and a recessed portion is formed on the laryngeal mask body, the curved tube has a first channel, a second channel and a third channel, the recessed portion is formed with an air vent connected to the first channel, the flushing tube and the suction tube pass through the recessed portion through the second channel, the camera is installed on one side of the air vent, the head end of the flushing tube faces the camera, and the suction tube is used to attract liquid for flushing secretions from the camera.

[0007] In some embodiments of the present application, the laryngeal mask body includes a fixing seat and an airbag. The recessed portion is formed on the fixing seat, and the airbag is installed on the outer circle of the recessed portion. The fixing seat is connected to one end of the elbow tube, and the airbag is successively connected with an inflation tube, an indicating airbag and a one-way valve.

[0008] In some embodiments of the present application, a flushing port is provided on one side of the camera. The flushing port communicates with the second channel. The head end of the flushing tube is fixed to the flushing port, and there is a groove connected to the flushing port for fixing the flushing angle of the flushing tube.

[0009] In some embodiments of the present application, a suction port is provided at the lowest position of the recessed portion. The suction port communicates with the second channel. The head end of the suction tube is fixed to the suction port.

[0010] In some embodiments of the present application, a groove for drainage is provided between the camera and the suction port.

[0011] In some embodiments of the present application, a drainage hole communicating with the lowest part of the recessed portion is provided in the ventilation port.

[0012] In some embodiments of the present application, the recessed portion is provided with a high platform, and the suction port and the ventilation port are respectively arranged on both sides of the high platform.

[0013] In some embodiments of the present application, a visual channel communicating with the second channel is provided in the recessed portion. The camera is installed in the outlet of the visual channel, and the wire electrically connected to the camera passes through the visual channel and the second channel and exits. One end of the wire is a Type-C head, and the camera has its own light source.

[0014] In some embodiments of the present application, one end of the flushing tube is connected with a flushing head, and one end of the suction tube is connected with a suction head. The flushing head and the suction head respectively have a socket for connecting a syringe.

[0015] In some embodiments of the present application, the included angle between the center line of the camera after being fixed and the center line of the first channel is between 10° and 35°.

[0016] The beneficial effects of the present invention are:

[0017] 1). By observing through the front camera whether there is secretion accumulation in the recessed portion of the laryngeal mask body, it is convenient for medical staff to suck out the secretion through the suction tube located in the second channel when seeing liquid accumulation, without disconnecting the laryngeal mask from the ventilator to insert the suction tube for suction operation;

[0018] 2). By providing a suction port at the lowest position of the recessed portion, it is convenient to suck the liquid gathered here;

[0019] 3), By providing a groove for drainage between the camera and the suction port, it is beneficial to directly drain the liquid for flushing the camera to the suction port. Description of the Drawings

[0020] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0021] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0022] Figure 2 is Figure 1 a partial enlarged view of B in

[0023] Figure 3 is Figure 1 a partial enlarged view of C in

[0024] Figure 4 is Figure 1 a partial enlarged view of A in

[0025] Figure 5 is Figure 1 a schematic structural diagram from another perspective;

[0026] Figure 6 is Figure 1 a cross-sectional view of

[0027] Reference numerals in the drawings:

[0028] 6. Connector; 11. Airbag; 12. Inflation tube, 13. Indicator airbag; 14. Check valve; 21. First channel; 22. Third channel, 23. Second channel; 24. Fixed seat; 25. Drainage hole; 26. High platform; 27. Groove; 31. Camera; 32. Electric wire; 33. Type-C head; 34. Suction head; 42. Suction tube; 43. Suction port; 421. Head end of the suction tube; 51. Flushing head; 52. Flushing tube; 53. Flushing port; 521. Groove; 522. Head end of the flushing tube. Detailed Embodiments

[0029] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and not for limiting the present invention.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are used to explain the structure and movement of various elements of the present invention, which are not absolute but relative. When these elements are in the positions shown in the drawings, these descriptions are appropriate. If the descriptions of the positions of these elements change, the indications of these directions will also change accordingly.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0032] The following further elaborates in detail on the preferred embodiments of the present invention in conjunction with the drawings of this specification.

[0033] Please refer to Figure 1 and Figure 2 and in conjunction with Figure 5 and Figure 6 A visible laryngeal mask with an aspiration function provided by an embodiment of the present invention includes a laryngeal mask body, a bent tube, a camera 31, a flushing tube 52, and an aspiration tube 42. The laryngeal mask body is connected to one end of the bent tube, and the laryngeal mask body is formed with a recess. The bent tube has a first channel 21, a second channel 23, and a third channel 22. The recess is formed with a ventilation port communicating with the first channel 21. A connector 6 connected to a ventilator is installed at the air inlet end of the first channel 21. When artificial ventilation is performed, the gas supplied by the ventilator to the patient enters the patient's airway through the first channel 21. The flushing tube 52 and the aspiration tube 42 pass out of the recess through the second channel 23. The camera 31 is installed on one side of the ventilation port. The head end 522 of the flushing tube faces the camera 31 for flushing the secretions at the front end of the camera 31. The aspiration tube 42 is used to aspirate the liquid for flushing the secretions of the camera 31. A drainage port communicating with the channel is provided on the back of the laryngeal mask body opposite to the recess for draining gastric reflux.

[0034] Please refer to Figure 2, the laryngeal mask body includes a fixing seat 24 and an airbag 11. A recessed portion is formed on the fixing seat 24, and the airbag 11 is installed on the outer ring of the recessed portion. The fixing seat 24 is connected to one end of a bent tube. The airbag 11 is sequentially connected with an inflation tube 12, an indicating airbag 13, and a one-way valve 14. The one-way valve 14 is used to connect to an inflation device, which can realize the control of inflating and deflating the airbag 11. During use, first deflate the airbag 11 inside the airbag 11 through the inflation device. During the air extraction process, press the shape of the airbag 11 by hand so that the airbag 11 becomes spoon-shaped after the air inside the airbag 11 is exhausted, which is convenient for inserting into the upper larynx of the patient. After inserting into the upper larynx of the patient, inflate the airbag 11 through the inflation device to achieve the sealing of the upper larynx. In this way, after the laryngeal mask is connected to the ventilator, normal artificial ventilation of the patient can be ensured.

[0035] Please refer to Figure 1 and Figure 3 , a flushing port 53 is provided on one side of the camera 31. The flushing port 53 communicates with the second channel 23. The head end 522 of the flushing tube is fixed to the flushing port 53, and there is a groove 521 connected to the flushing port 53 for fixing the flushing angle of the flushing tube 52.

[0036] Please refer to Figure 1 and Figure 4 , a suction port 43 is provided at the lowest position of the recessed portion. The suction port 43 communicates with the second channel 23. The head end 421 of the suction tube is fixed to the suction port 43.

[0037] It should be understood that the flushing port 53 and the suction port 43 are respectively merged into the second channel 23 through the flushing channel and the suction channel, that is, the front end of the second channel 23 bifurcates into three channels, one for writing back to the camera 31, one for fixing the flushing tube 52, and the other for fixing the suction tube 42.

[0038] Please refer to Figure 1 , in some embodiments of the present application, a groove 27 for drainage is provided between the camera 31 and the suction port 43, which is used to drain the liquid for flushing the camera 31 to the lowest suction port 43. After that, the groove 27 can quickly and completely drain the liquid for flushing the camera 31 in time, and prevent the occurrence of accidental aspiration of the patient due to the accumulation of liquid.

[0039] Please refer to Figure 1 and Figure 4, a drainage hole 25 communicating with the lowest point of the concave portion is provided in the ventilation port. A high platform 26 is provided in the concave portion. The suction port 43 and the ventilation port are respectively arranged on both sides of the high platform 26. Since the outlet of the first channel 21 is separated from the lowest position of the concave portion by a high platform 26, and the high platform 26 and the first channel 21 gradually raise the height of the outlet of the first channel 21 through a slope. After the outlet of the first channel 21 is raised by this high platform 26, the replacement of the laryngeal mask and the tracheal intubation can be completed during or after the operation; the lowest point of the concave portion is separated from the lowest position of the outlet of the first channel 21 by the high platform 26. Therefore, the two sides of the high platform 26 are the positions where liquid accumulation is most likely to occur. So a drainage hole 25 is provided here for the connection of both sides of the high platform 26, so as to drain the liquid accumulated on both sides of the high platform 26.

[0040] Please refer to Figure 1 and Figure 3 , a visual channel communicating with the second channel 23 is provided in the concave portion. The camera 31 is installed in the outlet of the visual channel, and the wire 32 electrically connected to the camera 31 passes through the visual channel and the second channel 23. One end of the wire 32 is a Type-C head 33. The camera 31 has its own light source to provide illumination for observing the larynx.

[0041] Please refer to Figure 1 , one end of the flushing tube 52 is connected with a flushing head 51, one end of the suction tube 42 is connected with a suction head 34. The flushing head 51 and the suction head 34 respectively have a jack for connecting a syringe. During use, a syringe filled with water is used to clean the camera 31 through the flushing tube 52, and the other syringe is an empty tube for sucking the liquid accumulated at the lowest position of the concave portion through the suction tube 42.

[0042] When the rear end of the suction tube 42 is fixedly assembled with the suction head 34, it extends 68 - 10 cm beyond the joint 68. The front end of the suction tube 42 is fixed at the suction port 43 in an inclined shape. The lowest point of the concave portion is convenient for collecting the liquid for flushing the secretions of the camera 31. The suction port 43 is opened here and the suction tube 42 is in an inclined shape, so as to achieve the best suction effect on the liquid. The front end of the flushing tube 52 is closed, and a row of flushing holes are drilled at a position 3 - 8 mm away from the closed end. The number of flushing holes is between 2 and 6 according to the size of the camera 31 and the fixed position.

[0043] It should be noted that the included angle between the center line of the fixed camera 31 and the center line of the first channel 21 is between 10° and 35°. Since the camera 31 has a certain field of view, there are certain position requirements for the visible channel for fixing the camera 31. Only when fixed at the optimal field of view position can it provide the best view for the insertion of the laryngeal mask and intraoperative monitoring. Considering the performance of the selected camera 31 and the design of the laryngeal mask, when the included angle between the axis line of the visible channel and the axis line of the second channel 23 is between 10° and 35°, the distance between the front end of the camera 31 and the outlet of the visible channel is within the range of -5 to 5 mm, which can provide the best observation view for medical staff, that is, it can maximize the exposure view of the glottis. At the same time, during the insertion and use of the laryngeal mask, since secretions will continuously be produced in the patient's oral cavity, esophagus or airway, after the front end of the camera 31 comes into contact with these secretions, it will affect the observation effect of the camera 31. In this case, it is necessary to flush the front end of the camera 31. During intraoperative flushing, the amount of flushing fluid must be strictly controlled. Excessive flushing will increase the risk of patient aspiration; therefore, there are strict requirements for the relative position between the flushing port 53 and the camera 31 and the structure of the flushing tube 52. Only when both the relative position and the structure of the flushing tube 52 meet the flushing requirements can the amount of flushing fluid be minimized and the flushing effect be optimal; the flushing tube 52 is a flexible capillary catheter with a closed front end. After passing through the flushing port 53, it is fixed above the side of the camera 31. When the multiple flushing nozzles on the flushing tube 52 form an included angle of 15° to 30° with the front end of the camera 31, the best flushing effect can be achieved.

[0044] The present invention observes whether there is a accumulation of secretions in the concave part of the laryngeal mask body through the front-end camera 31, which is convenient for medical staff to suck out the secretions through the suction tube 42 located in the second channel 23 when seeing liquid accumulation, without disconnecting the laryngeal mask from the ventilator to insert the suction tube 42 for suction operation.

[0045] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the protection scope of the appended claims of the present invention.

Claims

1. A visible laryngeal mask with an attracting function, characterized in that, It includes a laryngeal mask body, a bent tube, a camera, a flushing tube and a suction tube. The laryngeal mask body is connected to one end of the bent tube, and the laryngeal mask body is formed with a recess. The bent tube has a first channel, a second channel and a third channel. The recess is formed with a ventilation port communicating with the first channel. The flushing tube and the suction tube pass through the second channel and extend out of the recess. The camera is installed on one side of the ventilation port. The head end of the flushing tube faces the camera. The suction tube is used to suck and flush the liquid of the secretions of the camera. A flushing port is provided on one side of the camera. The flushing port communicates with the second channel. The head end of the flushing tube is fixed to the flushing port, and there is a groove connected to the flushing port for fixing the flushing angle of the flushing tube. A suction port is provided at the lowest position of the recess. The suction port communicates with the second channel. The head end of the suction tube is fixed to the suction port. A groove for drainage is provided between the camera and the suction port. The ventilation port is provided with a drainage hole communicating with the lowest part of the recess. The recess is provided with a high platform. The suction port and the ventilation port are respectively arranged on both sides of the high platform. The outlet of the first channel and the lowest position of the recess are separated by the high platform. The high platform and the first channel gradually raise the height of the outlet of the first channel through a slope. The lowest part of the recess and the lowest position of the outlet of the first channel are separated by the high platform. Drainage holes are provided on both sides of the high platform for the communication on both sides of the high platform.

2. The visible laryngeal mask with an attracting function according to claim 1, characterized in that, The laryngeal mask body includes a fixing seat and an airbag. The recess is formed on the fixing seat. The airbag is installed on the outer circle of the recess. The fixing seat is connected to one end of the bent tube. The airbag is sequentially connected with an inflation tube, an indicating airbag and a one-way valve.

3. The visual laryngeal mask with an attraction function according to claim 1, characterized in that, A visual channel communicating with the second channel is provided in the recess. The camera is installed at the outlet of the visual channel, and the wire electrically connected to the camera passes through the visual channel and the second channel and extends out. One end of the wire is a Type-C head. The camera has its own light source.

4. The visible laryngeal mask with an attraction function according to claim 1, characterized in that, One end of the flushing tube is connected with a flushing head, and one end of the suction tube is connected with a suction head. The flushing head and the suction head respectively have a socket for connecting a syringe.

5. The visual laryngeal mask with an attracting function according to claim 1, characterized in that, The included angle between the center line of the fixed camera and the center line of the first channel is between 10° and 35°.

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