CN111514420A - Laryngeal mask and its main body, video distal receiving structure - Google Patents

Abstract

The application provides a laryngeal mask and laryngeal mask main part, video distal end accommodate structure thereof, video distal end accommodate structure is including first chamber (15a) that is used for holding the distal end of video pipe (23) and second chamber (15b) that is used for holding the distal end of leaded light spare (11), the distal end of first chamber (15a) is formed with non-light tight first blind tip (103a), the distal end of second chamber (15b) is formed with non-light tight second blind tip (102a), first blind tip (103a) with the mutual separation of second blind tip (102a) sets up. In the embodiment of the application, the light emitted by the light guide member basically cannot directly enter the first blind end part from the second blind end part, namely, the light emitted by the light guide member basically cannot interfere with the image acquisition at the far end of the image tube, and the image tube is favorable for outputting high-quality images.

Description

Laryngeal mask and its main body, video distal receiving structure

technical field

The present application relates to the technical field of medical devices, and in particular, to a laryngeal mask, its main body, and a video distal accommodating structure.

Background technique

As a supraglottic ventilation device, the laryngeal mask belongs to the artificial airway. Since its invention in 1983, it has been widely used in clinical practice because of its advantages of simple operation, high success rate and small damage. A laryngeal mask is an artificial airway device between a mask and an endotracheal tube, which can not only allow patients to maintain spontaneous breathing, but also implement positive pressure ventilation.

A laryngeal mask without a visualization function is generally blindly inserted into the patient's body. Since the details of the throat cannot be seen during the operation, the operator can only blindly insert it based on hand feel and experience. Blind insertion is likely to lead to inaccurate placement of the laryngeal mask, and the inaccurate position may lead to a series of subsequent problems, such as the inability to effectively isolate the respiratory tract and digestive tract, resulting in incomplete sealing of the laryngeal mask, air leakage, bloating and reflux of the patient. , or even aspiration; inaccurate position also increases the possibility of laryngeal mask movement during surgery. In addition, blind insertion also increases the chance of choosing the wrong type of laryngeal mask. When one or more of the above problems occur, the operator has to readjust the angle of the laryngeal mask or insert it repeatedly, which may prolong the operation time and delay the rescue of critically ill patients. In addition, multiple trial insertions may also cause an increase in the patient's oral mucus, which increases the difficulty of the operation. Furthermore, repeated operations are likely to cause pharyngeal injury and hemorrhage in patients, large cardiovascular reactions, and increased surgical risks.

In order to ensure the accuracy of the placement of the laryngeal mask, operators often check through various indirect means, such as observing chest rise and fall, lung compliance, auscultation for air leakage, observing neck bulge, monitoring PetCO2 (end-tidal carbon dioxide) However, although various indirect inspection methods have played an important role in actual operation, they have inherent limitations and the risk of misjudgment. Therefore, if necessary, direct use of visual inspection methods Soft endoscopy. There are also some problems with the direct use of visual soft mirrors. First of all, the flexible visual mirror itself is a reusable instrument and directly contacts the internal tissue of the patient, so it needs to be strictly sterilized, and strict disinfection takes a certain amount of time. The anti-soaking performance requirements of the tube itself are also high. Furthermore, during the disinfection period, medical staff have to prepare spare equipment, which objectively increases the cost of use. Even so, there is a certain risk of cross-infection. It is relatively high and is not a spare device that can be obtained at will. For example, when performing some emergency airway treatment or in some primary medical institutions, there may be a lack of flexible visual endoscopes; thirdly, flexible visual endoscopes are mainly used for inspection after laryngeal mask insertion. Or guide the tracheal intubation through the laryngeal mask into the glottis, instead of achieving full visibility during the insertion of the laryngeal mask, so it is difficult to effectively reduce the repeated insertion of the laryngeal mask.

In view of this, it is necessary to realize the visual function of the laryngeal mask itself, and a series of video laryngeal mask designs have also appeared.

In order to solve the technical problems caused by the above-mentioned blind insertion, the related art improves the laryngeal mask, and adds a visualization device to the laryngeal mask. For example, in the utility model patent with publication number CN205814822U and titled "Visual Intubation Laryngeal Mask", the video device and cable are arranged along the inner wall of the trachea of the laryngeal mask, the image sensor outlet is flush with the outlet of the distal end of the trachea, and the cable is close to the trachea. There are ports at the end to connect the display and power supply. With this design, the image sensor can only be fixedly embedded in the laryngeal mask in advance, and the image sensor and cables and other components are difficult to be taken out and reused for other laryngeal masks, so the application cost of the laryngeal mask is high; and when the patient's epiglottis sags , the epiglottis may block the image sensor, and the operator cannot obtain a clear glottis image.

In order to solve the above-mentioned technical problems of the reusability of the video device and the occlusion of the image sensor by the epiglottis, the applicant of the present application attempts to make the following improvement design (the improved design has not been disclosed before this application) in view of the defects of the prior art: Pluggable insertion into the main body of the laryngeal mask, the distal end of the video tube is enclosed in the flexible light-transmitting member, and the distal end of the video tube is designed as a bendable structure, and the flexible light-transmitting member is driven to bend when the video tube is bent . However, the applicant found that there is a problem of reflection in this solution. Specifically, please refer to FIG. 1. The end of the video tube 1 is integrated with a light source 1a and an image sensor 1b. The optical component has a transparent window 3. When the video tube 1 moves, the light emitted by the light source 1a (shown by the arrow in the figure) will be reflected on the transparent window 3 at certain angles, and the reflected light will be directed to the image sensor 1b. This creates a reflective effect that interferes with imaging.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present application are expected to provide a laryngeal mask, its main body, and a video distal accommodating structure that can basically avoid imaging interference to improve imaging effects.

In order to achieve the above object, a first aspect of the embodiments of the present application provides a video distal end receiving structure for a laryngeal mask, the video distal end receiving structure includes a distal end for accommodating a video tube of the laryngeal mask. a first cavity and a second cavity for accommodating the distal end of the light guide member of the laryngeal mask, the distal end of the first cavity is formed with a first blind end portion that transmits light, the distal end of the second cavity A light-transmitting second blind end portion is formed, and the first blind end portion and the second blind end portion are arranged to block each other.

Further, the end surface of the first blind end portion is formed as a plane or an outwardly convex arc surface.

Further, along the direction from the proximal end to the distal end of the distal end receiving structure, the relative distance between the end face of the first blind end portion and the end face of the second blind end portion is less than or equal to a predetermined value .

Further, the material of the first blind end is polycarbonate or polymethyl methacrylate.

Further, the video distal accommodating structure includes a first hose and a second hose that are fixedly connected, the distal ends of the first hose and the second hose are both closed, and the inside of the first hose is closed. Formed as the first cavity, the distal end of the first hose is formed as the first blind end; the interior of the second hose is formed as the second cavity, and the second hose is formed as the second cavity. A distal end is formed as the second blind end.

Further, the first hose includes a first corrugated section and a first rib extending along the length direction of the first corrugated section, the inner wall of the first corrugated section is a smooth structure, and the first rib The thickness of the strip is greater than the corresponding thickness at the trough of the first corrugated section; the second hose includes a second corrugated section and a second rib extending along the length direction of the second corrugated section, the first The inner wall of the second corrugated section is a smooth structure, and the thickness of the second rib is greater than the corresponding thickness at the trough of the second corrugated section.

Further, the neutral layer of the first hose and the neutral layer of the second hose are located in the same neutral layer, and the first rib and the second rib are located in the neutral layer within the level.

Further, the first hose includes a hose body with open ends and a window portion connected to the distal end of the hose body, and the light transmission performance of the window portion is higher than that of the hose body. , the window portion is formed as the first blind end portion.

Further, the viewing window portion includes a cover body, a first socket portion and a second socket portion, the first socket portion extends from the edge of the cover body toward the hose body, and the hose The end of the body is in contact with the inner side of the cover, the first sleeve is sleeved on the outer surface of the hose body, and the second sleeve is sleeved on the second hose. the outer surface of the distal end.

Further, both ends of the second socket portion are formed in an open structure, and the distal end portion of the second blind end portion protrudes from the distal end portion of the second socket portion.

Further, the inner wall of the hose body is formed with a step away from the window portion, and the proximal end of the window portion is formed with an abutment structure, the abutment structure extends into the hose body and is connected to the The steps are in contact with each other, and the portion of the viewing window extending into the hose body is bonded to the hose body.

Further, the video distal accommodating structure includes a transition sleeve, and the transition sleeve is fixedly connected with the proximal end of the first flexible tube and with the proximal end of the second flexible tube.

A second aspect of the embodiments of the present application provides a laryngeal mask body, including a light guide, a conduit, a sealing seat connected to the distal end of the conduit, and any of the above-mentioned video distal accommodating structures, the laryngeal mask The main body is formed with an air guide channel, a video channel for accommodating the video tube, and a light guide channel for accommodating the light guide; the air guide channel, the video channel and the The light guide cavity extends to the distal end of the catheter, the first cavity is formed as the distal end of the video cavity, and the second cavity is formed as the distal end of the light guide cavity; the first cavity is formed as the distal end of the video cavity. A blind end portion and the second blind end portion extend at least partially into the seal seat.

Further, the conduit comprises a tube body and a first partition wall located in the tube body, the first partition wall divides the interior of the tube body into a compartment and the air guide channel; the laryngeal mask The main body includes a sealing portion, the sealing portion is located at the distal end of the compartment, and the sealing portion isolates the compartment and the space in the sealing seat from each other; a first through hole is formed on the sealing portion and a second through hole, the first cavity communicates with the compartment through the first through hole, and the second cavity communicates with the compartment through the second through hole.

Further, the conduit includes a second partition wall located inside the pipe body, the second partition wall divides the compartment into a first compartment and a second compartment, the first compartment is connected to the The first cavity is in communication, and the second compartment is in communication with the second cavity.

Further, the video distal accommodating structure includes a transition sleeve, the transition sleeve is fixedly connected with the proximal end of the first cavity and the proximal end of the second cavity; the throat The cover main body includes a transition joint that is sleeved with the transition sleeve; the transition joint is formed as a hollow structure with open ends, and the transition joint is fixedly connected with the sealing part; the proximal end of the first cavity passes through The transition joint communicates with the first through hole, and the proximal end of the second cavity communicates with the second through hole through the transition joint.

Further, the catheter comprises a first plastic tube, a second plastic tube and a third plastic tube which are independent of each other; the interior of the first plastic tube and the first cavity together form the video channel; the The inside of the second plastic tube and the second cavity together form the light guide cavity, and the inside of the third plastic tube forms the air guide channel.

A third aspect of the embodiments of the present application provides a laryngeal mask body, including a light guide, a conduit, a sealing seat connected to the distal end of the conduit, and any of the above-mentioned video distal accommodating structures, the laryngeal mask The main body is formed with an air guide channel, a video channel for accommodating a video tube and a light guide channel for accommodating a light guide; the air guide channel, the video channel and the light guide channel Extending to the distal end of the catheter, the first cavity is formed as the distal end of the video cavity, and the second cavity is formed as the distal end of the light guide cavity; the catheter includes a tube body, The first partition wall and the third partition wall located in the tube body, and the light-transmitting sealing portion, the first partition wall separates the interior of the tube body to form a compartment and the air guide channel, and the sealing portion The compartment is isolated from the space in the seal seat, the third partition wall extends a predetermined distance from the surface of the seal portion facing away from the seal seat toward the proximal end of the tube body, the seal Portions of the portion located on opposite sides of the third partition wall form an end face of the first blind end portion and an end face of the second blind end portion.

Further, the compartment and the air guide channel extend into the sealing seat, and the sealing portion is located in the sealing seat.

A fourth aspect of the embodiments of the present application provides a laryngeal mask, including a video device, and any one of the above-mentioned laryngeal mask main bodies, the video device including a display, a control part, and the video connected to the display A tube, the distal end of the video tube is configured with an image sensor, and the video tube is pluggably inserted into the video cavity.

Further, the light guide member is a plastic optical fiber, the control part includes a casing and a light source emitting member capable of emitting visible light disposed in the casing, a light output port is formed on the casing, and the light guide The proximal end of the piece is butted with the light output port.

Further, the light guide member includes an electroluminescent device and a wire connected to the electroluminescent device, the electroluminescent device is arranged at the distal end of the light guide cavity, and the wire is connected from the electroluminescent device. Extending to the proximal end of the light guide channel, the control part includes a wire, and the wire can be electrically connected to the wire.

Further, the distal end of the video tube can drive the distal end of the light guide to bend and reset synchronously.

Further, the distal end of the video tube is provided with a heating element capable of heating the distal end of the video channel; an anti-fog coating is formed on the outer surface of the first blind end.

In the embodiment of the present application, the first blind end and the second blind end are mutually blocked, the light in the light guide is emitted through the second blind end to illuminate a local area of the patient's tissue, and the light diffusely reflected by the patient's tissue enters the second blind end. At a blind end, the optical signal is collected by the image sensor to form an image signal and then transmitted to the display for display. That is to say, the distal end of the light guide and the distal end of the video tube do not have a common light-transmitting window in the prior art, so part of the light emitted by the light guide will not directly strike the image sensor, nor will it basically The light emitted from the first blind end portion is reflected to the image sensor after being emitted to the inner side of the end face of the first blind end. Therefore, the light emitted by the light guide will basically not interfere with the imaging of the distal end of the video tube.

Description of drawings

1 is a simplified structural schematic diagram of a video tube and a transparent window in the related art;

2 is a schematic structural diagram of a laryngeal mask according to an embodiment of the application;

3 is a schematic structural diagram of the main body of the laryngeal mask according to the first embodiment of the application;

FIG. 4 is a schematic structural diagram of a video device according to an embodiment of the present application;

5 is a schematic diagram 1 of the laryngeal mask according to the embodiment of the application being placed in a patient, wherein the distal end of the video tube bypasses the tip of the epiglottis and is not bent;

6 is a schematic diagram 2 of the laryngeal mask according to the embodiment of the application being placed in a patient, wherein the distal end of the video tube is bent upward to open the epiglottis;

Fig. 7 is a schematic cross-sectional view along the E-E direction in Fig. 2;

Figure 8 is a schematic cross-sectional view along the F-F direction in Figure 2;

9 is a cross-sectional view of the laryngeal mask shown in FIG. 2 (with the display omitted), wherein the cross-sectional section passes through the light guide;

FIG. 10 is a schematic diagram of the matching structure of the conduit, the transition joint and the sealing part according to the embodiment of the application;

FIG. 11 is a schematic structural diagram of the video remote accommodating structure according to the first embodiment of the application;

Fig. 12 is a symmetrical cross-sectional view of the video distal accommodating structure of the first embodiment shown in Fig. 11;

13 is a symmetrical cross-sectional view of the video distal end receiving structure according to the second embodiment of the present application;

14 is a symmetrical cross-sectional view of the video distal end receiving structure according to the third embodiment of the present application;

FIG. 15 is a symmetrical cross-sectional view of the video distal end receiving structure according to the fourth embodiment of the application;

16 is a schematic cross-sectional view of a part of the structure of the laryngeal mask according to the first embodiment of the application along the N-N direction in FIG. 9;

17 is a schematic cross-sectional view of a part of the structure of the laryngeal mask body according to the second embodiment of the application along the N-N direction in FIG. 9;

18 is a schematic cross-sectional view of a part of the structure of the laryngeal mask body according to the third embodiment of the application along the N-N direction in FIG. 9;

FIG. 19 is a schematic structural diagram of a video remote accommodating structure according to a fifth embodiment of the present application;

FIG. 20 is a symmetrical cross-sectional view of the video distal end receiving structure shown in FIG. 19 .

Description of reference numerals

10. Main body of laryngeal mask 11. Light guide 110. Plastic optical fiber 111. Electroluminescent device

112, electric wire 12, conduit 121, pipe body 122, first partition wall

123, the second partition wall 123a, the first partition chamber 123b, the second partition chamber 101, the air guide channel

102, light guide channel 103, video channel 102a, second blind end 152, first hose

103a, first blind end 13, sealing seat 13', airbag 13", airbag seat

14. Airbag 151, second hose 15, video distal end receiving structure 15a, first cavity

15b, second cavity 1521, hose body 1522, window portion 152a, step

152b, abutting structure 153, transition joint 154, sealing portion 155, transition sleeve

16. Connector 17. Stomach tube 20. Video device 21. Display

22, control part 23, video tube 231, image sensor 90, epiglottis

91, glottis 92, pharynx 93, esophagus 154a, first through hole

154b, second through hole 15210, first corrugated section 15211, first rib

1510, the second corrugated section 1511, the second rib 15221, the cover

15222, the first socket part 15223, the second socket part

Detailed ways

In the embodiments of the present application, the "proximal end" refers to the direction close to the operator, and the "distal end" refers to the direction away from the operator.

An embodiment of the present application provides a laryngeal mask. Please refer to FIGS. 2-4 . The laryngeal mask includes a laryngeal mask body 10 and a video device 20 .

Referring to FIG. 4 , the video device 20 includes a display 21 , a video tube 23 and a control unit 22 . The video tube 23 is in the shape of a slender tube. The distal end of the video tube 23 is provided with an image sensor 231 (refer to FIGS. 16-18 ). The video tube 23 is internally provided with a cable (not shown). The image signal collected by the image sensor 231 is transmitted to the display 21 . It should be noted that the display 21 may have its own signal processing capability and image display function, or may only have the image display function, and other components process the above-mentioned image signals and then display them through the display 21 .

Referring to FIG. 3 , the laryngeal mask body 10 includes a light guide 11 (refer to FIGS. 7 and 8 ), a catheter 12 , a sealing seat 13 , a gastric tube 17 and a video distal receiving structure 15 . The sealing seat 13 is connected to the distal outlet of the catheter 12 , the proximal end of the catheter 12 is used for connecting the video device 20 or the ventilator, and the gastric tube 17 extends from the proximal end of the catheter 12 to the distal end of the sealing seat 13 . It can be understood that the sealing seat 13 may be a one-piece structure, such as a soft structure formed by using silicone; the sealing seat 13 may also be in the form of an airbag seat 13' and an airbag 13". In this embodiment, the sealing seat 13 includes Airbag seat 13' and airbag 13".

Referring to FIGS. 11 and 12 , the video distal end accommodating structure 15 includes a first cavity 15 a for accommodating the distal end of the video tube 23 and a second cavity 15 b for accommodating the distal end of the light guide 11 . The distal end of the cavity 15a is formed with a first blind end 103a that can transmit light, that is, the distal end of the first cavity 15a is closed, and the distal end of the video tube 23 and the first blind end 103a Correspondingly arranged; the distal end of the second cavity 15b is formed with a second blind end portion 102a that transmits light, that is, the distal end of the second cavity 15b is closed, and the distal end of the light guide 11 is connected to the second blind end portion 102a. The end portions 102a are arranged correspondingly, and the first blind end portion 103a and the second blind end portion 102a are mutually blocked. In this embodiment, the first blind end portion 103a and the second blind end portion 102a are mutually blocked, which refers to the distal end of the light guide member 11 disposed in the second cavity 15b and the video tube disposed in the first cavity 15a 23 The far ends are isolated from each other, the light emitted by the far end of the light guide 11 will not directly enter the image sensor 231, and the light emitted by the far end of the light guide 11 will not be emitted to the inner side of the end face of the first blind end 103a. Then, it is reflected to the image sensor 231 . In this embodiment, a separate light guide 11 provides a light source for the video tube 23. Therefore, no light source is integrated at the distal end of the video tube 23. Please refer to FIGS. 16-18 for the light in the light guide 11. The light emitted by the second blind end 102a illuminates a local area of the patient's tissue, the light diffusely reflected by the patient's tissue enters the first blind end 103a, and the light signal is collected by the image sensor 231 to form an image signal and then transmitted to the display. That is to say, the distal end of the light guide member 11 and the distal end of the video tube 23 do not have a common transparent window in the prior art, so the light emitted by the light guide member 11 basically does not directly pass through the second blind end portion 102a. into the first blind end portion 103a, so that the image sensor 231 will not be disturbed basically when collecting the light signal diffusely reflected by the tissue in the patient.

The end surface of the first blind end portion 103a may be a flat surface or an outwardly convex arc surface, such as a spherical cap, an ellipsoid surface, and the like. For example, referring to FIGS. 11-14 , in the video distal end accommodating structure from the first embodiment to the third embodiment of the present application, the end surface of the first blind end portion 103a is formed as an outwardly convex arc surface, which can be understood It is to be noted that the first blind end portion 103a in the video distal receiving structures of the first to third embodiments may also be a plane; please refer to FIG. 15 and FIG. 20 , the fourth and fifth embodiments of the present application In the distal end-of-view accommodating structure of the fifth embodiment, the end face of the first blind end portion 103a is formed as a plane. It can be understood that the first blind end portion 103a in the distal end-of-view accommodating structure of the fifth embodiment may also be an arc. noodle.

In order to reduce the large attenuation of light incident on the first blind end 103a and thus affect the effect of image acquisition by the image sensor 231, the first blind end 103a can be made of a material with better light transmission performance, such as polycarbonate (PC for short) , polymethyl methacrylate (referred to as PMMA) and so on. Specifically, referring to FIGS. 11 to 15 , the distal end receiving structure 15 includes a first hose 152 , a second hose 151 and a transition sleeve 155 that are fixedly connected to each other. It can be understood that, the first hose 152 and the second hose 151 may be directly fixedly connected or indirectly fixedly connected. The inside of the first hose 152 is formed as the first cavity 15a, the distal end of the first hose 152 is formed as the first blind end 103a; the inside of the second hose 151 is formed as the second cavity 15b, and the second hose 151 The distal end of the is formed as a second blind end 102a. Specifically, the first hose 152 is made of a soft material, such as soft polyvinyl chloride (soft PVC for short), the proximal end of which is formed as an open end, and the distal end is closed and can transmit light. The second hose 151 is made of a soft material, such as PVC, the proximal end of which is formed as an open end, and the distal end is closed and transparent to light.

The transition sleeve 155 is fixedly connected with the proximal end of the first hose 152 and with the proximal end of the second hose 151 . Specifically, the transition sleeve 155 is integrally formed with the proximal ends of the first hose 152 and the second hose 151 , and the video distal receiving structure 15 can be conveniently and fixedly connected to the catheter 21 through the transition sleeve 155 .

In this embodiment, the first hose 152 and the second hose 151 at least partially protrude into the sealing seat 13 , that is, the distal end of the video tube 23 and the distal end of the light guide 11 are both located in the sealing seat 13 . inside the seat 13, so that the light guide 11 can illuminate the tissues inside the patient in a large range, especially the tissues such as the glottis 91 and the epiglottis 90, and at the same time, the distal end of the video tube 23 can also capture a large area image to enhance the visualization of the laryngeal mask.

It can be understood that the above-mentioned first cavity 15a and second cavity 15b may be communicated with each other or isolated from each other, as long as the first blind end portion 103a and the second blind end portion 102a are ensured to be blocked from each other. In the direction from the proximal end to the distal end of the laryngeal mask body 10, the relative distance along the length direction between the end face of the first blind end portion 103a and the end face of the second blind end portion 102a is less than or equal to a predetermined value, which may be determined according to The size of the first blind end portion 103a and the second blind end portion 102a is determined, for example, 1 mm, etc. It can be understood that, if the processing technology allows, the smaller the predetermined value, the better, that is, the size of the first blind end portion 103a The end face is substantially flush with the end face of the second blind end portion 102a, and the end face of the first blind end portion 103a may slightly exceed the end face of the second blind end portion 102a, or the end face of the second blind end portion 102a may slightly exceed the end face of the first blind end portion 102a. The end face of the blind end portion 103a.

11-12 , in the video distal end receiving structure 15 according to the first embodiment of the present application, the first cavity 15a and the second cavity 15b are isolated from each other. Further, in this embodiment, the first hose 152 It includes a hose body 1521 with open ends and a window portion 1522 covering the distal end of the hose body 1521. The light transmission performance of the window portion 1522 is higher than that of the hose body 1521, and the window portion 1522 is formed as described above. The first blind end 103a. Specifically, the window portion 1522 is made of a material with better light transmission performance, such as PC, PMMA, etc., to ensure that the image sensor 231 can collect light signals of sufficient intensity.

The proximal part of the window portion 1522 extends into the hose body 1521 and is bonded with the hose body 1521 to enhance the connection strength between the two. Further, the inner wall of the hose body 1521 is formed with a step 152a facing away from the window portion 1522, and the proximal end of the window portion 1522 is formed with an abutting structure 152b, and the abutting structure 152b extends into the hose body 1521 and abuts with the step 152a, and so on. When the video tube 23 is inserted into the first cavity 15a, the cooperation of the step 152a and the abutting structure 152b can prevent the window portion 1522 from being separated from the hose body 1521 under the force of the video tube 23. Since the step 152a is away from the window portion 1522, even if the window portion 1522 is detached from the hose body 1521 due to external force, the window portion 1522 will not fall off from the hose body 1521 to the patient's airway when blocked by the step 152a, which greatly improves the operation efficiency. Safety and avoid medical accidents. In this embodiment, the end face of the first blind end portion 103a exceeds the end face of the second blind end portion 102a. Of course, the end face of the first blind end portion 103a may not exceed the end face of the second blind end portion 102a.

Referring to FIG. 13 , in the video distal accommodating structure 15 of the second embodiment of the present application, the first cavity 15a and the second cavity 15b are also isolated from each other, which is different from the video distal accommodating structure of the first embodiment described above. The difference is that, in this embodiment, the first hose 152 has a one-piece structure, that is, the first hose 152 itself has better soft bending performance and better light transmission performance. Further, in this embodiment, the first hose 152 and the second hose 151 are integrally formed, which not only simplifies the difficulty of production and manufacture, but also facilitates simultaneous bending of the two. In this embodiment, the end face of the first blind end portion 103a exceeds the end face of the second blind end portion 102a. Of course, the end face of the first blind end portion 103a may not exceed the end face of the second blind end portion 102a.

Referring to FIG. 14 , in the video distal accommodating structure 15 of the third embodiment of the present application, the difference from the above-mentioned second embodiment is that the first cavity 15a and the second cavity 15b are partially communicated with each other. Further, in this embodiment, the first hose 152 and the second hose 151 are integrally formed, which not only simplifies the difficulty of production and manufacture, but also facilitates simultaneous bending of the two. Further, in the direction from the proximal end to the distal end, the end face of the first blind end portion 103a does not exceed the end face of the second blind end portion 102a, that is, the end face of the second blind end portion 102a is larger than the end face of the first blind end portion 103a The end face is closer to the distal end of the laryngeal mask body 10, so that the light emitted by the light guide 11 can be prevented from passing through the second blind end 102a and then entering the first blind end 103a obliquely, causing the image sensor 231 to be disturbed.

Referring to FIG. 15 , in the video distal end accommodating structure 15 of the fourth embodiment of the present application, different from the first embodiment described above, in this embodiment, the end face of the first blind end portion 103 a is a plane, and the first blind end portion 103 a is flat. The end face of the blind end portion 103a does not exceed the end face of the second blind end portion 102a.

Referring to FIGS. 19 and 20 , in the video distal end receiving structure 15 of the fifth embodiment of the present application, the difference from the first embodiment is that the first hose 152 includes a first corrugated section 15210 and along the first corrugated section The first rib 15211 extending along the length direction of the 15210, the thickness of the first rib 15211 is greater than the corresponding thickness at the trough of the first corrugated section 15210; the inner wall of the first corrugated section 15210 is a smooth structure. The second hose 151 includes a second corrugated section 1510 and a second rib 1511 extending along the length direction of the second corrugated section 1510. The inner wall of the second corrugated section 1510 is a smooth structure, and the thickness of the second rib 1511 is greater than The corresponding thickness at the trough of the second corrugated section 1510 . The first corrugated section 15210 has crests and troughs, and the inner wall is a smooth structure. The thickness at the crest will be greater than the thickness at the trough. Along the length of the first corrugated section 15210, the crests and troughs are alternately arranged, so that the thickness of the first corrugated section 15210 is The thickness of the second corrugated section 1510 is alternately arranged in the length direction, and the thickness of the second corrugated section 1510 is also alternately arranged in the length direction.

Taking the first corrugated section 15210 as an example, the smooth structure means that the inner wall of the first corrugated section 15210 has no stepped structure, and has nothing to do with the roughness of the inner wall of the first corrugated section 15210. The inner wall can be relatively rough, such as a frosted structure, or relatively smooth, which is not limited here.

It can be understood that in the forming process of the hose, when the thickness of the hose is thinner, the fluidity of the raw slurry in the mold will be worse, and the raw slurry cannot sufficiently flow to the end of the flow direction, resulting in soft There may be loopholes in the structure at the flow end of the raw slurry of the pipe, and the hose is a waste product; or the thickness is uneven, and the thin part is extremely thin, causing the hose to be easily damaged and unqualified. Therefore, in the present application, the thickness of the first rib 15211 is greater than the thickness corresponding to the trough of the first corrugated section 15210 . During the injection molding process of the first hose 152, the raw slurry flows in the direction of the mold corresponding to the position of the first rib 15211. The first rib 15211 is similar to the main flow channel. That is to say, the space of the mold corresponding to the position of the first ribs 15211 is large, which can reduce the flow resistance of the original slurry, and the original slurry can flow smoothly; It flows at the corresponding positions of the wave crests on both sides of the transverse direction. The wave crest is similar to the flow tributary. Because the thickness of the wave crest is thick, the flow resistance of the original slurry can also be reduced, so that the original slurry can fill the mold and the wave crest. At the same time, the original slurry at the crest of the mold can flow from the crest to both sides of the crest, the thickness of the trough is thinner, and the flow resistance of the original slurry in the mold is larger, but the two adjacent crests The slurry at the corresponding position at the trough can flow to the corresponding position in the middle of the trough at the same time. The distance of the original slurry flowing is short, and the original slurry can fully reach the corresponding position at the trough for molding.

Through the design of the first corrugated section 15210 and the second corrugated section 1510, the corrugated valley can have a thinner thickness and higher quality reliability. Since the thickness of the wave trough is relatively thin, the accommodating structure at the distal end of the video can have good flexibility, and can be bent and reset synchronously with the video tube. The thickness design of the first rib 15211, the second rib 1511 and the wave crest also increases the structural strength of the video distal accommodating structure, so that the video distal accommodating structure will not deform under the alternating action of positive and negative pressure and block the guide. Air channel 101 .

Further, the neutral layer of the first hose 152 and the neutral layer of the second hose 151 are located in the same neutral plane, and the first rib 15211 and the second rib 1511 are located in the neutral plane, so that the first rib The strip 15211 and the second rib 1511 substantially do not provide resistance to the bending of the first hose 152 and the second hose 151 . Among them, the neutral layer refers to: during the bending process of the material, the bending outer layer is stretched, and the bending inner layer is squeezed. The stress is almost equal to zero. This transition layer is called the neutral layer of the material. The length of the neutral layer during bending remains the same as before bending.

In the embodiment of the present application, the first hose 152 and the second hose 151 are integrally formed, the outer wall of the first hose 152 is connected with the outer wall of the second hose 151, the first corrugated section 15210 and the second corrugated section 1510 The same rib is sandwiched therebetween, that is, in this case, the first rib 15211 and the second rib 1511 are formed as the same rib.

In one embodiment, the window portion includes a cover body 15221, a first socket portion 15222 and a second socket portion 15223. The first socket portion 15222 extends from the edge of the cover body 15221 toward the first hose 152. The end of the hose 152 is in contact with the inner side of the cover 15221 , the first sleeve 15222 is sleeved on the outer surface of the first hose 152 , and the second sleeve 15223 is sleeved on the distal end of the second hose 151 the outer surface. The window part of the embodiment of the present application is sleeved on the outer surface of the second hose 151 through the second socket part 15223, which increases the bonding area of the window part, improves the connection reliability of the window part, and prevents the window part from falling off.

It should be noted that the first corrugated section 15210 in the fifth embodiment can be formed on the hose body 1521 in the above-mentioned first embodiment, the second embodiment and the third embodiment, and the second hose 151 can be formed on The second corrugated section 1510 in the fifth embodiment described above.

Please refer to FIGS. 7 and 8 , the main body 10 of the laryngeal mask is formed with an air guide channel 101 , a video channel 103 and a light guide channel 102 isolated from the air guide channel 101 , the air guide channel 101 and the video channel 103 , and the light guide cavity 102 extends along the extension direction of the catheter 12, which may extend from the proximal end of the catheter 12 to the distal end, or it may extend from a certain position along the length direction of the catheter 12 to the distal end, The video channel 103 and the light guide channel 102 are isolated from the air guide channel 101, and the airflow will not enter the video channel 103 and the light guide channel 102 during the process of being introduced into the sealing seat 13 through the air guide channel 101. The air guide channel 101 has better air tightness, so that the airflow can be efficiently introduced into the patient's lungs. The light guide cavity 102 is used for accommodating the light guide member 11, the proximal end of the light guide cavity 102 is formed as an open end, the second cavity 15b is formed as the distal end of the light guide cavity end 102, the light guide member 11 can be opened from the light guide cavity The proximal end of the channel 102 is pre-inserted into the light guide channel 102 and protrudes into the second blind end 102a in the second cavity 15b. The video channel 103 is used to accommodate the video tube 23, the proximal end of the video channel 103 is formed as an open end, the first cavity 15a is formed as the distal end of the video channel 103, and the video tube 23 can be used when needed The video tube 23 is then inserted into the video channel 103 from the proximal end of the video channel 103 to the position corresponding to the first blind end 103a of the first cavity 15a. After use, the video tube 23 can be pulled out from the video channel 103 . The video tube 23 is enclosed in the video channel 103 and will not contact with the internal tissue of the patient during use, and the video tube 23 can be reused relatively safely. According to the relevant national standards, if the reusable equipment during the operation is in contact with the patient's tissue, it needs to be sterilized at a high level after the operation. . In the prior art, the end of the video tube is exposed in the sealing seat, which may come into contact with the patient's body secretions, etc., and may also come into contact with the patient's epiglottis tissue. Therefore, high-level disinfection is required after surgery. In the embodiment of the present application, the video tube 23 is not in contact with the patient, and in the post-operative disinfection procedure, there is no need to go through a disinfection process such as immersion in disinfectant, and a lower-level disinfection method can be used, such as wiping, which is convenient, fast, and cost-effective. Low.

In the prior art, the position of the image sensor is at the junction of the sealing seat and the catheter. When the epiglottis droops, the epiglottis may completely or partially block the image sensor, so the display may not be able to display or only partially display the glottal and surrounding tissues. In the image, the operator may not be able to judge the exact position of the main body of the laryngeal mask. If the position is inaccurate, there may be the risk of air leakage and poor sealing of the laryngeal mask. The tube and monitor cannot function properly and thus cannot guide the intubation correctly. At this time, if intubation is performed, either blind intubation may be performed, which may cause damage to the patient's glottis, or the main body of the laryngeal mask may be re-pulled for repeated attempts. May prolong the operation time to establish the artificial airway. For this reason, in the embodiment of the present application, the distal end of the video tube 23 is formed with a bendable structure, so that the distal end of the video tube 23 can drive the distal end of the light guide 11 to synchronously bend and reset, so that the light guide 11 emits The direction of the light can always be changed synchronously with the viewing angle direction of the far end of the video tube 23 , and the illumination intensity required by the video tube sensor 231 is always guaranteed. When the laryngeal mask body 10 and the video tube 23 are inserted into the patient synchronously, please refer to FIG. 5 , the distal end of the video tube 23 bypasses the tip of the epiglottis 90, and the distal end of the video tube 23 can be bent without bending or moderately according to the actual situation to obtain With a better field of view, even if the epiglottis 90 sags, it will basically not interfere with the video tube 23 to obtain images of the patient’s glottis 91 and surrounding tissues; when the epiglottis 90 sags, please refer to FIG. 6 , the operator operates the control unit 22 to control the image The distal end of the tube 23 is bent upwards, and the epiglottis 90 can be deftly opened, without forcibly adjusting the relevant parts of the patient through rigid elements as in the prior art. Therefore, the present embodiment can operate in a gentler manner and reduce the difficulty of operation. In addition, the epiglottis can be opened through the video tube 23 itself, and the lateral size of the laryngeal mask will not be additionally increased. Therefore, during use, the patient's mouth opening is not too high. Adaptability is better.

Further, generally, after the laryngeal mask main body 10 is placed in the patient's body, when the temperature of the inner and outer sides of the first blind end 103a and the distal end of the video tube 23 is lower than the temperature in the patient's body for a short period of time, the above-mentioned interface is likely to condense into fine water. Therefore, in the embodiment of the present application, a heating element, such as one or more resistors, is formed at the distal end of the video tube 23, so that the first blind end 103a is timely The temperature of the inner side is heated to be approximately equal to the temperature in the patient's body to prevent the generation of condensation water droplets; in addition, the outer side of the first blind end 103a is coated with an anti-fog coating (not shown) to further prevent condensation water droplets production.

The video channel 103 and the light guide channel 102 can be completely isolated from each other, so that the insertion of the light guide 11 and the insertion of the video tube 23 do not interfere with each other, that is, the light guide 11 is inserted into the light guide channel 102 will not be inserted into the video channel 103. Similarly, when the video tube 23 is inserted into the video channel 103, it will not be inserted into the light guide channel 102, which can facilitate the light guide 11 and the video. The tube 23 is quickly inserted in place; since the video tube 23 is generally inserted at the preoperative site, saving the time for the video tube 23 to be inserted is also saving the preoperative preparation time. Time is very precious for surgery, especially in the case of emergency. , every second counts. Of course, the video channel 103 and the light guide channel 102 can also be partially isolated from each other, for example, only the distal end is isolated from each other, and the rest of the channels are connected to each other, that is, the video channel 103 is from the proximal end to the second blind end 102a. The cavity between the two and the cavity between the light guide cavity 102 from the proximal end to the first blind end 103a are connected.

It should be noted that, in order to ensure that the airflow can efficiently enter the sealing seat 13 through the air guide channel 101 and then enter the patient's lungs through the airway, it is necessary to ensure that the airflow entering the sealing seat 13 will not flow from the video channel 103, light guide. Air leaks in the gap between the cavity 102 and the air guide channel 101 , otherwise, the air flow will not be able to effectively enter the patient's lungs, resulting in insufficient oxygen supply to the patient and thus bringing danger to life. To this end, please refer to FIGS. 9 and 10 , the laryngeal mask body 10 of the embodiment of the present application includes a sealing portion 154 , and the sealing portion 154 may be arranged in the tube body 121 , in the sealing seat 13 , or in the The transition connection between the pipe body 121 and the sealing seat 13 . The sealing portion 154 is substantially perpendicular to the length direction of the tube body 121 , and a first through hole 154 a (not shown) and a second through hole 154 b (not shown) are formed on the sealing portion 154 , and the video channel 103 passes through the first through hole 154 a (not shown). A through hole 154a, through which the light guide channel 102 passes through the second through hole 154b.

Further, in order to facilitate the stable installation of the first hose 152 and the second hose 151 and prevent the first hose 152 and/or the second hose 151 from falling off due to the weak connection at the connection, please refer to FIG. 10 and FIG. 16 - Figure 18, the main body 10 of the laryngeal mask includes a transition joint 153, the transition joint 153 is formed into a hollow structure with open ends, the transition joint 153 is fixedly connected with the sealing part 154, for example, it can be an integrally formed structure, and the transition sleeve 155 is fixedly sleeved On the outer peripheral surface of the transition joint 153, for example, bonding. The proximal end of the first hose 152 is communicated with the first through hole 154 a through the transition joint 153 , and the proximal end of the second flexible tube 151 is communicated with the second through hole 154 b through the transition joint 153 . By arranging the transition joint 153 , the bonding area of the bonding place is increased, the bonding strength and sealing performance of the video distal receiving structure 15 and the sealing portion 154 are enhanced, and the manufacturing difficulty is reduced.

It can be understood that the space within the transition joint 153 that communicates with the first hose 152 and the space that communicates with the second hose 151 may be isolated from each other or communicated with each other.

Various embodiments of the laryngeal mask are described in detail below with reference to the accompanying drawings.

Laryngeal mask of the first embodiment

Referring to FIG. 7 , in the laryngeal mask according to the first embodiment of the present application, the conduit 12 includes a pipe body 121 , a first partition wall 122 and a second partition wall 123 . The tube body 121 is substantially in the shape of a hollow tube, the first partition wall 122 and the second partition wall 123 are located inside the tube body 121 and both extend along the length direction of the tube body 121 , wherein the first partition wall 122 corresponds to the tube body 121 The inner wall of the air guide is set as an air guide channel 101 . If the laryngeal mask needs to be designed as a laryngeal mask capable of tracheal intubation, the inner wall of the air guide channel 101 should be a smooth structure. It is necessary to ensure that the endotracheal intubation can be performed smoothly.

The corresponding part of the second partition wall 123 and the tube body 121 is surrounded by a first compartment 123a. Part of the structure of the video tube 23 is accommodated in the first compartment 123a, that is, the first compartment 123a belongs to the video tube 123a. Like part of the channel 103. In order to facilitate the rapid insertion of the video tube 23, the cross section of the first compartment 123a is substantially circular. It can be understood that the cross-sectional size of the first compartment 123a needs to ensure that the video tube can pass through smoothly.

Please continue to refer to FIG. 7 , the space in the tube body 121 except the first compartment 123 a and the air guide channel 101 is formed as the second compartment 123 b , that is, the corresponding first partition wall 122 , the second partition wall 123 and the tube body 121 A second compartment 123b is formed at the two parts together, and part of the structure of the light guide 11 is accommodated in the second compartment 123b.

Continuing to refer to FIG. 7 , the first partition wall 122 and the second partition wall 123 are generally arranged along opposite sides of the width direction of the tube body 121 , that is, the air guide channel 101 is located on one side of the tube body 121 in the width direction. The cavity 103 and the light guide cavity 102 are located on the other side of the tube body 121 in the width direction, so that the parts of the light guide 11 and the video tube 23 located in the sealing seat 13 will not affect the endotracheal intubation operation.

Referring to FIG. 9 , the sealing portion 154 is disposed at the distal end of the pipe body 121 , specifically, the sealing portion 154 is located at the distal ends of the first compartment 123 a and the second compartment 123 b . The inner wall is sealed and connected, for example, an integral molding structure, and the ends of the first partition wall 122 and the second partition wall 123 are in sealing abutment with the surface of the side of the sealing portion 154 facing away from the sealing seat 13 . A first through hole 154a and a second through hole 154b are formed on the sealing portion 154, the first through hole 154a communicates with the first compartment 123a, and the second through hole 154b communicates with the second compartment 123b. It should be noted that the structure of the sealing portion 154 is not limited, as long as the first accommodating chamber 123a and the space in the sealing seat 13 can be isolated from each other. For example, the sealing portion 154 may be an integrally formed structure; It may also be a split structure. For example, when a process hole is formed on a part of the sealing portion 154 , the process hole needs to be blocked with a plug. In this case, the plug is formed as a part of the sealing portion 154 .

In this embodiment, please refer to FIG. 16 , the light guide member 11 is formed as a plastic optical fiber 110 (Plastic Optical Fiber, POF for short) pre-placed in the light guide cavity 102 , and the plastic optical fiber 110 is made of a highly transparent polymer For example, any one or more of polystyrene (PS), polymethyl methacrylate (PMMA), polycarbonate (PC), etc. are used as the core material, and PMMA, fluoroplastic, etc. are used as one of the skin materials. optical fiber. The plastic optical fiber 110 is light in weight, soft, and more resistant to damage (such as vibration or bending); the simple drawing process of the polymer can be used, and the cost is relatively low; the flexibility is good, and it is easy to process and use. During the use of the laryngeal mask main body 10, the operator will bend the laryngeal mask main body 10 to varying degrees to smoothly insert it into the patient. , so that the light guide 11 will not be broken during the bending process of the laryngeal mask body 10, thereby ensuring the reliability and high-quality lighting performance of the light guide 11. Furthermore, the plastic optical fiber 110 of the present application has a high impact on the formula purity of raw materials, The frequency bandwidth requirements are not high, as long as the communication function is not required to guide light, the production cost can be greatly reduced, which is especially conducive to popularization and application.

In this embodiment, the control unit 22 includes a casing (not shown in the figure) and a light source emitting element (not shown in the figure) disposed in the casing capable of emitting visible light, and a light output port (not shown in the figure) is formed on the casing to guide The proximal end of the optical element 11 is connected to the light output port.

The operation process and working principle of the laryngeal mask of the first embodiment of the present application are as follows:

First, the video tube 23 is inserted into the video channel 103. When the video tube 23 is inserted in place, the video device 20 and the laryngeal mask body 10 are locked so that there is no relative movement between them. It has been considered that the locking of the video device 20 and the laryngeal mask main body 10 can ensure that the light output port and the proximal end of the light guide 11 are in the aligned position, and there is no need for deliberate docking, which saves time and is easy to operate; the laryngeal mask main body 10 and the video device 20 Connection ready. It can be understood that, referring to FIG. 3 , in order to facilitate the locking of the video device 20 and the laryngeal mask body 10 , a connecting piece 16 may be provided at the proximal end of the laryngeal mask body 10 .

Then, start the power supply of the video device, and the display 21 is on;

Then, the visualization function of the imaging device 20 is turned on, and the light source emitting element outputs visible light to the proximal end of the light guide element 11 , and finally emits it to the internal tissue of the patient through the distal end of the light guide element 11 . Then, referring to FIG. 5 , the operator gradually inserts the laryngeal mask body 10 from the patient's mouth until the distal end of the laryngeal mask body touches the entrance of the esophagus 93 , the image information collected by the image sensor 231 is transmitted to the display 21 , and the operator can According to the image displayed on the display 21, it is roughly judged whether the placement position of the distal end of the laryngeal mask body 10 is appropriate. If not, it needs to be adjusted in time to ensure that the distal end of the laryngeal mask body can seal the patient's esophagus 93 to prevent gas from entering. The patient's stomach; ensure that the balloon 14 fits and opens around the glottis 91 after the balloon 14 is inflated. The distal end of the video tube 23 bypasses the epiglottis 90. According to the actual situation, the distal end of the video tube 23 can be bent without bending or moderately to obtain a better field of view. Even if the epiglottis 90 sags, the video tube 23 will hardly be heard from the patient. The images of the door 91 and the surrounding tissue cause interference; when the epiglottis 90 sags, please refer to FIG. .

If endotracheal intubation is not required, the ventilator pipeline connector can be directly connected to the proximal end of the air guide channel 101 after removing the video device 20 .

If tracheal intubation is required, the trachea is gradually inserted from the proximal end of the airway 101 to the distal end, passing through the sealing seat 13 and the glottis 91 in turn, (the directions indicated by the arrows in FIGS. 5 and 6 indicate that the air flows to the patient’s lungs Section), endotracheal intubation was operated under visualization. It should be noted that in the process of tracheal intubation, a ventilator pipeline connector can be connected to the proximal end of the trachea, and the patient can be ventilated while intubating. After the trachea is inserted in place, first remove the ventilator pipeline connector, then remove the laryngeal mask body 10 and the video device, keep the trachea, and then connect the ventilator pipeline connector to the proximal end of the trachea.

In other not-shown embodiments, a light source emitter capable of emitting visible light can also be preset at the proximal end of the plastic optical fiber 110. After the imaging device 20 is connected to the laryngeal mask body 10, the wires in the imaging device 20 are connected to the When the light source emitting element is docked, and the video device 20 is activated, the visible light emitted by the light source emitting element is transmitted to the distal end through the near end of the plastic optical fiber 110 .

It can be understood that the laryngeal mask in this embodiment is illustrated by taking the video distal end receiving structure of the above-mentioned first embodiment as an example. It should be noted that the laryngeal mask can also use the above-mentioned second to fifth embodiments. The structure of the video remote accommodating structure in the method will not be repeated here.

Laryngeal mask of the second embodiment

Please refer to FIG. 17 , in the second embodiment of the present application, the difference from the first embodiment is that in the video channel 103 and the light guide channel 102 , except for the first blind end portion 103 a and the second blind end portion 102 a In addition to being mutually blocked, the remaining cavities communicate with each other, that is, the cavity between the video cavity 103 from the proximal end to the first blind end 103a and the light guide cavity 102 from the proximal end to the second blind end 102a communication between the cavities. Specifically, the tube body 121 is formed with a first partition wall 122 without the second partition wall in the first embodiment, and the interior of the tube body 121 is divided into two independent spaces by the first partition wall 122 , one of which is The air guide channel 101 , wherein another space is formed as a compartment for simultaneously accommodating the light guide member 11 and the video tube 23 .

Laryngeal mask of the third embodiment

Referring to FIGS. 16 and 18 , in the laryngeal mask of the third embodiment of the present application, the light guide 11 is different from the above-mentioned first embodiment in that the light guide 11 includes a wire 112 and an electro-illuminator 111 . Devices that emit light, such as LED lights. A lead wire (not shown) is provided in the control part 22 . The electroluminescent device 111 is placed at the distal end of the light guide cavity 102 , and the wire 112 is connected to the electroluminescent device 111 and extends along the length of the catheter 12 , so that the port of the wire 112 is exposed at the proximal end of the tube body 121 . When the video device 20 is connected to the main body 10 of the laryngeal mask, the wires in the video device 20 are connected to the wires 112, and when the video device 20 is activated, the electroluminescent device 111 is energized to emit light to illuminate the area at the far end of the light guide cavity 102 . It should be noted that, in order to facilitate the reliability of the electrical connection between the wires 112 and the wires, a quick-plug connector (not shown) can be provided at the end of the tube body 121. When the video device 20 is docked with the laryngeal mask body 10, the video The wires and wires 112 in the device 20 are automatically mated by means of a push-in connector. It can be understood that the structural form of the light guide member in the above-mentioned second embodiment may also be the structural form of the light guide member in the third embodiment.

In a not-shown embodiment, the conduit 12 includes a tube body 121, a first partition wall 122 and a third partition wall (not shown) located in the tube body 121, and a light-transmitting sealing portion 154. The partition wall 122 separates the interior of the tube body 121 to form a compartment and an air guide channel 101 , the sealing portion 154 isolates the compartment from the sealing seat 13 , and the third partition wall is directed from the surface of the sealing portion 154 away from the sealing seat 13 to the proximal end of the tube body 121 . The direction extends for a predetermined distance. It can be understood that the third partition wall may extend all the way to the proximal end of the tube body 121 , or may only extend to a certain intermediate position of the tube body 121 . Portions of the sealing portion 154 on opposite sides of the third partition wall form an end face of the first blind end portion 103a and an end face of the second blind end portion 102a. Further, the compartment and the air guide channel 101 extend into the sealing seat 13 along the proximal end of the tube body 121, and the sealing portion 154 is located in the sealing seat 13, so that the first blind end portion 103a and the second blind end portion are 102a are all located in the sealing seat 13, so as to increase the image capturing range of the distal end of the video tube 23.

In another not-shown embodiment, different from the catheter 12 of the laryngeal mask in the above-mentioned embodiment, in this not-shown embodiment, the catheter can also be formed by bundling a plurality of independent plastic tubes together, That is, the conduit includes a first plastic tube (not shown in the figure), a second plastic tube (not shown in the figure) and a third plastic tube (not shown in the figure), wherein the inside of the third plastic tube forms an air guide channel 101; The inside of a plastic tube and the first cavity 15a together form a video channel 103; the inside of the second plastic tube and the second cavity 15b together form a light guide channel 102.

The various embodiments/implementations provided in this application may be combined with each other under the condition that no contradiction arises.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (24)

1. A video distal accommodating structure for a laryngeal mask, characterized in that the video distal accommodating structure comprises a first cavity (15a) for accommodating the distal end of a video tube (23) of the laryngeal mask and a second cavity (15b) for accommodating the distal end of the light guide member (11) of the laryngeal mask, the distal end of the first cavity (15a) is formed with a light-transmitting first blind end portion (103a), A transparent second blind end portion (102a) is formed at the distal end of the second cavity (15b), and the first blind end portion (103a) and the second blind end portion (102a) are arranged to block each other. 2 . The video distal end receiving structure according to claim 1 , wherein the end surface of the first blind end portion ( 103 a ) is formed as a plane surface or an outwardly convex arc surface. 3 . 3. The video distal receiving structure according to claim 1, characterized in that, along the direction from the proximal end to the distal end of the video distal receiving structure, the end face of the first blind end portion (103a) The relative distance from the end face of the second blind end portion (102a) is less than or equal to a predetermined value. 4. The video distal end accommodating structure according to claim 1, wherein the material of the first blind end portion (103a) is polycarbonate or polymethyl methacrylate. 5. The video distal end receiving structure according to claim 1, wherein the video distal end receiving structure comprises a fixedly connected first hose (152) and a second hose (151), the The distal ends of both the first hose (152) and the second hose (151) are closed, the inside of the first hose (152) is formed as the first cavity (15a), the first hose (152) The distal end of 152) is formed as the first blind end (103a); the inside of the second hose (151) is formed as the second cavity (15b), The distal end is formed as the second blind end (102a). 6. The distal end receiving structure of claim 5, wherein the first hose (152) comprises a first corrugated section (15210) and a length along the first corrugated section (15210) The first rib (15211) extending in the direction, the inner wall of the first corrugated section (15210) is a smooth structure, and the thickness of the first rib (15211) is greater than the trough of the first corrugated section (15210) The thickness corresponding to the thickness of the second hose (151) includes a second corrugated section (1510) and a second rib (1511) extending along the length direction of the second corrugated section (1510). The inner wall of the second corrugated section (1510) is a smooth structure, and the thickness of the second rib (1511) is greater than the thickness corresponding to the trough of the second corrugated section (1510). 7. The video distal end receiving structure according to claim 6, wherein the neutral layer of the first hose (152) and the neutral layer of the second hose (151) are located in the same In the neutral plane, the first rib (15211) and the second rib (1511) are located in the neutral plane. 8. The video distal receiving structure according to claim 5, wherein the first hose (152) comprises a hose body (1521) with open ends and is connected to the hose body (1521) ) at the distal end of the window portion (1522), the light transmission performance of the window portion (1522) is higher than that of the hose body (1521), and the window portion (1522) is formed as the first blind end (103a). 9 . The video distal end receiving structure according to claim 8 , wherein the viewing window portion ( 1522 ) comprises a cover body ( 15221 ), a first socket portion ( 15222 ) and a second socket portion ( 15223 ). 10 . ), the first socket portion (15222) extends from the edge of the cover body (15221) toward the hose body (1521), and the end of the hose body (1521) is connected to the cover body The inner side of (15221) is abutted, the first socket part (15222) is socketed on the outer surface of the hose body (1521), and the second socket part (15223) is socketed with the second socket part (15223). The outer surface of the distal end of the hose. 10. The video distal end receiving structure according to claim 9, characterized in that, both ends of the second socket part (15223) are formed as open structures, and the distal end part of the second blind end part Protruding from the distal end of the second socket portion (15223). 11. The video distal end receiving structure according to claim 8, wherein the inner wall of the hose body (1521) is formed with a step (152a) facing away from the viewing window (1522), and the viewing window is The proximal end of (1522) is formed with an abutment structure (152b), the abutment structure (152b) extends into the hose body (1521) and abuts with the step (152a), and the window portion (1522) The part extending into the hose body (1521) is bonded to the hose body (1521). 12. The video distal accommodating structure according to claim 5, wherein the video distal accommodating structure comprises a transition sleeve (155), the transition sleeve (155) and the first soft The proximal end of the tube (152) and the proximal end of the second hose (151) are fixedly connected. 13. The main body of the laryngeal mask, characterized in that it comprises a light guide (11), a conduit (12), a sealing seat (13) connected to the distal end of the conduit (12), and any one of claims 1-12. In the described video distal accommodating structure, the laryngeal mask body (12) is formed with an air guide channel (101), a video channel (103) for accommodating the video tube (23), and a video channel (103) for accommodating the video tube (23). The light guide channel (102) of the light guide member (11); the air guide channel (101), the video channel (103) and the light guide channel (102) extend to the conduit (102). 12), the first cavity (15a) is formed as the distal end of the video channel (103), and the second cavity (15b) is formed as the distal end of the light guide channel (102). end; the first blind end portion (103a) and the second blind end portion (102a) at least partially protrude into the sealing seat (13). 14. The laryngeal mask body according to claim 13, wherein the conduit (12) comprises a tube body (121) and a first partition wall (122) located in the tube body (121), the The first partition wall (122) divides the inside of the tube body (121) into a compartment and the air guide channel (101); the laryngeal mask body includes a sealing part (154), and the sealing part (154) is located at the distal end of the compartment, and the sealing portion (154) isolates the compartment and the space in the sealing seat (13) from each other; a first through hole is formed on the sealing portion (154) (154a) and a second through hole (154b) through which the first cavity (15a) communicates with the compartment through which the second cavity (15b) passes (154b) communicates with the compartment. 15. The laryngeal mask body according to claim 14, wherein the conduit (12) comprises a second partition wall (123) located inside the tube body (121), the second partition wall (123) ) divides the compartment into a first compartment (123a) and a second compartment (123b), the first compartment (123a) communicates with the first cavity (15a), the second compartment (123b) communicates with the second cavity (15b). 16. The laryngeal mask body according to claim 14, wherein the video distal receiving structure comprises a transition sleeve (155), the transition sleeve (155) and the first cavity (15a) The proximal end of the laryngeal mask (15b) is fixedly connected with the proximal end of the second cavity (15b); the laryngeal mask body includes a transition joint (153) that is sleeved with the transition sleeve (155); the The transition joint (153) is formed into a hollow structure with open ends, the transition joint (153) is fixedly connected with the sealing part (154); the proximal end of the first cavity (15a) passes through the transition joint (153) ) communicates with the first through hole (154a), and the proximal end of the second cavity (15b) communicates with the second through hole (154b) through the transition joint (153). 17. The laryngeal mask body according to claim 13, wherein the conduit (12) comprises a first plastic tube, a second plastic tube and a third plastic tube which are independent of each other; the inner part of the first plastic tube The video channel (103) is formed together with the first cavity (15a); the interior of the second plastic tube and the second cavity (15b) together form the light guide channel (102), The inside of the third plastic tube forms the air guide channel (101). 18. The main body of the laryngeal mask, characterized in that it comprises a light guide (11), a conduit (12), a sealing seat (13) connected to the distal end of the conduit (12), and any one of claims 1-4. In the described video distal accommodating structure, the laryngeal mask body is formed with an air guide channel (101), a video channel (103) for accommodating a video tube (23) and a light guide (11) for accommodating The light-guiding channel (102) of the air-conducting channel (101), the video channel (103) and the light-guiding channel (102) extend to the distal end of the catheter (12), so The first cavity (15a) is formed as the distal end of the video channel (103), and the second cavity (15b) is formed as the distal end of the light guide channel (102); the catheter (12) ) comprises a tube body (121), a first partition wall (122) and a third partition wall located in the tube body (121), and a light-transmitting sealing portion (154), the first partition wall (122) The inner space of the pipe body (121) forms a compartment and the air guide channel (101), and the sealing part (154) isolates the compartment from the space in the sealing seat (13). The third partition wall extends a predetermined distance from the surface of the sealing portion (154) facing away from the sealing seat (13) toward the proximal end of the pipe body (121), and the sealing portion (154) is located in the first Parts of the three partition walls on opposite sides form the end face of the first blind end portion (103a) and the end face of the second blind end portion (102a). 19. The laryngeal mask body according to claim 18, wherein the compartment and the air guide channel (101) extend into the sealing seat (13), and the sealing portion (154) is located at the into the sealing seat (13). 20. A laryngeal mask, characterized in that it comprises a visual device (20) and the laryngeal mask body according to any one of claims 13-19, wherein the visual device (20) comprises a display (21), a control part ( 22) and the video tube (23) connected to the display (21), the distal end of the video tube (23) is provided with an image sensor (231), and the video tube (23) is pluggable Insert into the video channel (103) firmly. 21. The laryngeal mask according to claim 20, wherein the light guide member (11) is a plastic optical fiber (110), and the control part (22) comprises a housing and a capable For a light source emitting part that emits visible light, a light output port is formed on the casing, and the proximal end of the light guide (11) is butted with the light output port. 22. The laryngeal mask according to claim 20, characterized in that, the light guide member (11) comprises an electro-illuminator (111) and a wire (112) connected to the electro-illuminator (111), the The electroluminescent device (111) is arranged at the distal end of the light-guiding cavity (102), and the electric wire (112) extends from the electro-illuminating device (111) to the vicinity of the light-guiding cavity (102). At the end, the control part (22) includes a wire, and the wire can be electrically connected to the wire (112). 23. The laryngeal mask according to claim 20, wherein the distal end of the video tube (23) can drive the distal end of the light guide (11) to bend and reset synchronously. 24. The laryngeal mask according to claim 20, wherein the distal end of the video tube (23) is provided with a heating element (232) capable of heating the distal end of the video cavity (103); An anti-fog coating is formed on the outer surface of the first blind end portion (103a).

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