Method, device and system for assisting laryngeal mask insertion

Abstract

The present invention relates to a method, device and system for assisting the placement of a laryngeal mask, and belongs to the technical field of laryngeal masks. According to the technical solution provided by the present invention, the method for assisting the placement of a laryngeal mask provides a laryngeal mask body to be placed in the throat cavity and an insertion guide plate that can be matched with the laryngeal mask body; in the process of placing the laryngeal mask body into the throat cavity through the oral cavity, the insertion guide plate can be covered on the mask body cavity of the laryngeal mask body, so that the tongue can be blocked from entering the mask body cavity by the insertion guide plate, so that the laryngeal mask body can be smoothly placed in the throat cavity; after the mask body cavity of the laryngeal mask body is placed in the throat cavity, pulling the insertion guide plate can completely separate the insertion guide plate from the laryngeal mask body, and until the insertion guide plate is pulled out of the oral cavity. The present invention has a compact structure, can effectively improve the smoothness and efficiency of laryngeal mask placement, is easy to use, and is safe and reliable.

Description

Technical Field

[0001] The invention relates to an auxiliary device, in particular to a method, a device and a system for assisting the insertion of a laryngeal mask, belonging to the technical field of laryngeal masks. Background Art

[0002] As a medical device used to maintain the patient's breathing and ventilation, laryngeal mask is widely used in clinical anesthesia, emergency treatment or resuscitation due to its non-invasive airway characteristics. With the advancement of materials and technology, a variety of improved laryngeal masks have been used in clinical practice.

[0003] When using a laryngeal mask for breathing and ventilation, the laryngeal mask needs to be inserted into the laryngeal cavity through the mouth. However, during the insertion of the laryngeal mask, the patient's tongue will enter the laryngeal mask cavity. When the tongue enters the laryngeal mask cavity, it will hinder the process of inserting the laryngeal mask into the laryngeal cavity, affecting the smoothness and efficiency of the insertion of the laryngeal mask. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a method, device and system for assisting the insertion of a laryngeal mask. The method, device and system have a compact structure, can effectively improve the smoothness and efficiency of the insertion of the laryngeal mask, are easy to use, and are safe and reliable.

[0005] According to the technical solution provided by the present invention, the method for assisting laryngeal mask insertion provides a laryngeal mask body to be inserted into the pharyngeal cavity and an insertion guide plate that can be matched with the laryngeal mask body;

[0006] During the process of inserting the laryngeal mask body into the pharyngeal cavity through the oral cavity, the inserting guide plate can cover the mask body cavity of the laryngeal mask body, so that the inserting guide plate can block the tongue from entering the mask body cavity, so that the laryngeal mask body can be smoothly inserted into the pharyngeal cavity;

[0007] After the mask body cavity of the laryngeal mask body is placed in the throat cavity, pulling the insertion guide plate can completely separate the insertion guide plate from the laryngeal mask body, and until the insertion guide plate is pulled out of the oral cavity.

[0008] The laryngeal mask body comprises a mask body capable of covering the oral mucosa around the glottis and a mask body tube sealedly connected to the mask body; the mask body comprises a mask body bottom plate and a mask body arranged on the front side of the mask body bottom plate, the mask body cavity is located in the central area of ​​the mask body and the mask body cavity is connected to the mask body tube;

[0009] The insertion guide plate and the laryngeal mask body are detachably connected; when the insertion guide plate and the laryngeal mask body are connected to each other, the rear end of the insertion guide plate can correspond to the mask body tube, the insertion guide plate can at least cover the middle and rear part of the mask body cavity opening, and the insertion guide plate can follow the mask body through the oral cavity and be inserted into the throat cavity;

[0010] After the mask body is inserted into the throat cavity, the connection between the insertion guide plate and the laryngeal mask body can be released by manipulating the tail end of the insertion guide plate, and after pulling the insertion guide plate outward, the head end of the insertion guide plate can be withdrawn from the throat cavity, so that the insertion guide plate and the laryngeal mask body are completely separated.

[0011] The insertion guide plate includes an opening sealing plate and a tail end plate that can be adapted to the cover tube, and the tail end plate is connected to the opening sealing plate through a transition connecting plate;

[0012] When the guide plate is inserted and connected to the laryngeal mask body, the opening of the mask body cavity can be blocked by the opening sealing plate, and the transition connecting plate can be adapted to the rear end of the mask body and the joint between the mask body and the mask body tube; the rear end plate corresponds to the front side of the mask body tube, and an end plate connecting hole is provided at the end of the rear end plate, and the rear end plate can be snapped onto the tube handle at the rear of the mask body tube through the end plate connecting hole.

[0013] A sealing plate cover body mechanism is also provided on the opening sealing plate. When the opening sealing plate blocks the opening of the cover body cavity, the sealing plate cover body mechanism can extend into the cover body cavity, and the sealing plate cover body mechanism can prevent the opening sealing plate from moving toward the rear end close to the cover body, so as to keep the opening sealing plate covering the opening of the cover body cavity when the cover body is placed into the throat cavity.

[0014] The sealing plate cover body mechanism includes a blocking and locking block arranged on the opening sealing plate, and the blocking and locking block is located at the end of the opening sealing plate adjacent to the transition connecting plate. When the opening sealing plate closes the opening of the cover body cavity, the blocking and locking block can extend into the cover body cavity and is adjacent to the rear end of the cover body, and the end of the blocking and locking block extending into the cover body cavity is located below the upper edge of the rear end of the cover body.

[0015] The insertion guide plate also includes a front end plate connected to the opening sealing plate, and the front end plate and the transition connecting plate are respectively located at two ends of the opening sealing plate;

[0016] When the guide plate is inserted and connected to the laryngeal mask body, the front end plate can extend into the head end of the mask body cavity.

[0017] It also includes a front end plate connection locking mechanism, through which the front end plate inserted into the guide plate can be locked in the front end of the cover body cavity.

[0018] The front end plate connection locking mechanism comprises a locking bolt arranged in the front end of the cover body and a front end plate locking hole arranged on the front end plate, wherein the front end plate locking hole can allow the locking bolt to be embedded.

[0019] The locking bolt is obliquely distributed in the cover body, and an end plate locking step is arranged on the outer wall of the locking bolt. After the locking bolt is embedded in the locking hole of the front end plate, the locking bolt and the front end plate can be locked to each other by using the end plate locking step.

[0020] A device capable of assisting laryngeal mask insertion, comprising an insertion guide plate capable of being matched with a laryngeal mask body to be inserted, the insertion guide plate comprising an opening sealing plate and a tail end plate, the opening sealing plate being connected to the tail end plate via a transition connecting plate;

[0021] The opening sealing plate can be adapted to the opening of the mask body cavity of the laryngeal mask body, and the opening sealing plate can at least cover the middle and rear part of the mask body cavity opening. When the opening sealing plate covers the opening of the mask body cavity, the tail end plate can correspond to the mask body tube of the laryngeal mask body by using the transition connecting plate.

[0022] The laryngeal mask body comprises a mask body capable of covering the oral mucosa around the glottis and a mask body tube sealedly connected to the mask body; the mask body comprises a mask body bottom plate and a mask body arranged on the front side of the mask body bottom plate, the mask body cavity is located in the central area of ​​the mask body and the mask body cavity is connected to the mask body tube;

[0023] The insertion guide plate and the laryngeal mask body are detachably connected; when the insertion guide plate and the laryngeal mask body are connected to each other, the opening of the mask body cavity can be blocked by the opening sealing plate, and the transition connecting plate can be adapted to the rear end of the mask body and the joint between the mask body and the mask body tube; the rear end plate corresponds to the front side of the mask body tube, and an end plate connecting hole is provided at the end of the rear end plate, and the rear end plate can be snapped onto the tube handle at the rear of the mask body tube through the end plate connecting hole.

[0024] A sealing plate cover body mechanism is also provided on the opening sealing plate. When the opening sealing plate blocks the opening of the cover body cavity, the sealing plate cover body mechanism can extend into the cover body cavity, and the sealing plate cover body mechanism can prevent the opening sealing plate from moving toward the rear end close to the cover body, so as to keep the opening sealing plate covering the opening of the cover body cavity when the cover body is placed into the throat cavity.

[0025] The sealing plate cover body mechanism includes a blocking and locking block arranged on the opening sealing plate, and the blocking and locking block is located at the end of the opening sealing plate adjacent to the transition connecting plate. When the opening sealing plate closes the opening of the cover body cavity, the blocking and locking block can extend into the cover body cavity and is adjacent to the rear end of the cover body, and the end of the blocking and locking block extending into the cover body cavity is located below the upper edge of the rear end of the cover body.

[0026] The blocking and locking block is hook-shaped.

[0027] A video head assembly hole for assembling a video head is arranged on the opening sealing plate, and the video head assembly hole passes through the opening sealing plate. A line arrangement and storage mechanism for arranging and storing video lines is arranged on the back side of the closed opening.

[0028] The thread arranging and storing mechanism comprises a thread groove or a thread cylinder;

[0029] When the wire arranging and storing mechanism is a wire groove, the wire groove is arranged on the opening sealing plate, the transition connecting plate and the tail end plate, and the end of the wire groove adjacent to the video head assembly hole is connected to the video head assembly hole;

[0030] When the wire arrangement and storage mechanism is a wire tube, the wire tube is obliquely arranged on the back side of the opening sealing plate, and the wire tube is connected to the video head assembly hole.

[0031] A system capable of assisting laryngeal mask insertion comprises a laryngeal mask body, wherein the laryngeal mask body comprises a mask body capable of covering the oral mucosa around the glottis and a mask body tube sealedly connected to the mask body; the mask body comprises a mask body bottom plate and a mask body arranged on the front side of the mask body bottom plate, wherein a mask body cavity capable of communicating with the mask body tube is arranged in the central area of ​​the mask body,

[0032] It also includes an insertion guide plate that can be matched with the laryngeal mask body, and the insertion guide plate and the laryngeal mask body are detachably connected; when the insertion guide plate and the laryngeal mask body are connected to each other, the tail of the insertion guide plate corresponds to the mask body tube, the insertion guide plate can at least cover the middle and rear part of the mask body cavity opening, and the insertion guide plate can follow the mask body through the oral cavity and be inserted into the throat cavity;

[0033] After the mask body is inserted into the throat cavity, the connection between the insertion guide plate and the laryngeal mask body can be released by manipulating the tail end of the insertion guide plate, and after pulling the insertion guide plate outward, the head end of the insertion guide plate can be withdrawn from the throat cavity, and the insertion guide plate and the laryngeal mask body can be completely separated.

[0034] A breathing connector is arranged at the rear end of the cover body tube, and the breathing connector and the cover body tube can rotate relative to each other.

[0035] The insertion guide plate includes an opening sealing plate and a tail end plate that can be matched with the tube cover, and the tail end plate is connected to the opening sealing plate through a transition connecting plate;

[0036] When the guide plate is inserted and connected to the laryngeal mask body, the opening of the mask body cavity can be blocked by the opening sealing plate, and the transition connecting plate can be adapted to the rear end of the mask body and the joint between the mask body and the mask body tube; the rear end plate corresponds to the front side of the mask body tube, and an end plate connecting hole is provided at the end of the rear end plate, and the rear end plate can be snapped onto the tube handle at the rear of the mask body tube through the end plate connecting hole.

[0037] The advantages of the present invention are as follows: the insertion guide plate can be adaptably connected with the laryngeal mask body, and the opening of the mask body cavity can be blocked by the insertion guide plate, so as to avoid the laryngeal mask insertion failure due to the tongue extending into the mask body cavity during the laryngeal cavity insertion process, and the smoothness and insertion efficiency of the laryngeal mask can be effectively improved. After the laryngeal mask body is inserted into the laryngeal cavity, the insertion guide plate can be completely separated from the laryngeal mask body, and the normal breathing support of the laryngeal mask body will not be affected. The present invention is easy to use and safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 to Figure 4 is a schematic diagram of Example 1 of the present invention, wherein

[0039] Figure 1 It is a stereogram of embodiment 1 of the present invention.

[0040] Figure 2 It is a cross-sectional view of embodiment 1 of the present invention.

[0041] Figure 3 This is a back stereoscopic view of the guide plate inserted in Example 1 of the present invention.

[0042] Figure 4 This is a front stereoscopic view of the guide plate inserted in Example 1 of the present invention.

[0043] Figures 5 to 8 is a schematic diagram of Embodiment 2 of the present invention, wherein

[0044] Figure 5 It is a stereoscopic diagram of embodiment 2 of the present invention.

[0045] Figure 6 It is a cross-sectional view of embodiment 2 of the present invention.

[0046] Figure 7 This is a front stereoscopic view of the guide plate inserted in Example 2 of the present invention.

[0047] Figure 8 This is a back stereoscopic view of the guide plate inserted in Example 2 of the present invention.

[0048] Figures 9 to 12 is a schematic diagram of Embodiment 3 of the present invention, wherein

[0049] Fig. 9 It is a stereoscopic diagram of embodiment 3 of the present invention.

[0050] Fig.10 It is a cross-sectional view of embodiment 3 of the present invention.

[0051] Fig.11 This is a three-dimensional diagram of the guide plate inserted in Example 3 of the present invention.

[0052] Fig.12 It is a cross-sectional view of the guide plate inserted in Example 3 of the present invention.

[0053] Fig.13 It is a front stereoscopic view of the laryngeal mask body of the present invention.

[0054] Fig.14 It is a back stereoscopic view of the laryngeal mask body of the present invention.

[0055] Fig.15 It is an enlarged view of the cooperation between the front end plate and the locking bolt of the present invention.

[0056] Description of the accompanying drawings: 1-mask body, 2-mask body tube, 3-breathing connector, 4-tube body handle, 5-suction connecting tube, 6-insertion guide plate, 7-occlusal positioning area, 8-suction connecting head, 9-tail end plate positioning hole, 10-gastric tube groove, 11-side wall groove, 12-blocking locking block, 13-locking bolt, 14-pressure regulating port, 15-pressure regulating tube cavity, 16-side suction guide hole, 17-ventilation tube cavity, 1 8-front end plate, 19-front end plate locking hole, 20-opening sealing plate, 21-sealing plate arc concave surface, 22-transition connecting plate, 23-rear end plate, 24-end plate connecting hole, 25-line body groove protrusion, 26-video head assembly hole, 27-line body groove, 28-sealing plate hole, 29-line body tube, 30-hood body cavity, 31-gastric tube groove protrusion, 32-hood body bottom plate and 33-end plate locking step and 34-sealing membrane. DETAILED DESCRIPTION

[0057] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0058] In order to effectively improve the smoothness and efficiency of laryngeal mask insertion, the method of assisting laryngeal mask insertion of the present invention specifically includes providing a laryngeal mask body to be inserted into the pharyngeal cavity and an insertion guide plate 6 that can be adapted to the laryngeal mask body;

[0059] During the process of inserting the laryngeal mask body into the throat cavity through the oral cavity, the inserting guide plate 6 can cover the mask cavity 30 of the laryngeal mask body, so that the inserting guide plate 6 can prevent the tongue from entering the mask cavity 30, so that the laryngeal mask body can be smoothly inserted into the throat cavity;

[0060] After the mask body cavity 30 of the laryngeal mask body is placed in the throat cavity, pulling the insertion guide plate 6 can completely separate the insertion guide plate 6 from the laryngeal mask body, until the insertion guide plate 6 is pulled out of the oral cavity.

[0061] Specifically, the laryngeal mask body and the insertion guide plate 6 need to be made of materials that meet medical standards. The specific material type can be selected as needed, which will not be repeated here. The laryngeal mask body can adopt the existing commonly used form. Generally, the laryngeal mask body has a mask body cavity 30, and respiratory support can be achieved through the mask body cavity 30. The position of the mask body cavity 30 on the laryngeal mask body is consistent with the existing ones, which are specifically well known to those in the technical field and will not be repeated here. In addition, the part of the insertion guide plate 6 that cooperates with the mask body 1 can be made of a flexible material. After the insertion guide plate body 6 is connected and matched with the laryngeal mask body, it will not affect the process of the laryngeal mask body being placed in the throat cavity, thereby effectively improving the smoothness and efficiency of the laryngeal mask placement.

[0062] When the laryngeal mask body is placed into the throat cavity through the oral cavity, it generally refers to placing the mask cavity 30 of the laryngeal mask body into the throat cavity. The mask cavity 30 has an opening. During the placement of the laryngeal mask body, the tongue in the oral cavity may enter the mask cavity 30. When the tongue enters the mask cavity 30, it will block the placement of the mask cavity 30, and even cause the laryngeal mask body to fail to be placed. In the embodiment of the present invention, the insertion guide plate 6 can be adapted to the laryngeal mask body, specifically refers to that the insertion guide plate 6 can be adapted to the mask body cavity 30, so that the insertion guide plate 6 can cover the mask body cavity 30, and after the insertion guide plate 6 covers the mask body cavity 30, it will not affect the process of the mask body cavity 30 being placed into the throat cavity, that is, the width of the insertion guide plate 6 is smaller than the width of the laryngeal mask body. After the insertion guide plate 6 covers the mask body cavity 30, during the placement process, the insertion guide plate 6 can block the tongue from entering the mask body cavity 30. Since the obstruction generated when the tongue contacts the insertion guide plate 6 is smaller than the obstruction generated when the tongue enters the mask body cavity 30, the mask body cavity 30 of the laryngeal mask body can be smoothly placed in the throat cavity.

[0063] Generally, after the insertion guide plate 6 is covered on the mask body cavity 30, the insertion guide plate 6 can follow the insertion process of the mask body cavity 30, that is, the insertion guide plate 6 will also enter the throat cavity. In order not to affect the use of the laryngeal mask body for respiratory support, it is necessary to withdraw the insertion guide plate 6 that has entered the throat cavity from the throat cavity. In specific implementation, the insertion guide plate 6 can be completely separated from the laryngeal mask body by only pulling the insertion guide plate 6, and with the continuous pulling of the insertion guide plate 6, the insertion guide plate 6 can be pulled out of the oral cavity. After the insertion guide plate 6 is separated from the laryngeal mask body and is removed from the oral cavity, the method of using the laryngeal mask body to provide respiratory support is consistent with the existing method, which is well known to those skilled in the art and will not be described in detail here.

[0064] Furthermore, the laryngeal mask body comprises a mask body capable of covering the oral mucosa around the glottis and a mask body tube 2 sealedly connected to the mask body; the mask body comprises a mask body bottom plate 32 and a mask body 1 arranged on the front of the mask body bottom plate 32, the mask body cavity 30 is located in the central area of ​​the mask body 1 and the mask body cavity 30 is connected to the mask body tube 2;

[0065] The insertion guide plate 6 is detachably connected to the laryngeal mask body; when the insertion guide plate 6 is connected to the laryngeal mask body, the rear end of the insertion guide plate 6 can correspond to the mask body tube 2, the insertion guide plate 6 can at least cover the middle and rear part of the opening of the mask body cavity 30, and the insertion guide plate 6 can follow the mask body 1 through the oral cavity and be inserted into the throat cavity;

[0066] After the mask body 1 is inserted into the throat cavity, the connection between the insertion guide plate 6 and the laryngeal mask body can be released by manipulating the tail end of the insertion guide plate 6, and after pulling the insertion guide plate 6 outward, the head end of the insertion guide plate 6 can be withdrawn from the throat cavity, so that the insertion guide plate 6 is completely separated from the laryngeal mask body.

[0067] like Fig.13 and Fig.14 As shown, it is a specific implementation structure diagram of the existing laryngeal mask body, wherein the mask body of the laryngeal mask body can cover the oral mucosa around the glottis, and can be connected to a ventilator / anesthesia machine supporting breathing by using the mask body tube 2. The mask body cavity 30 is located in the central area of ​​the mask body 1, and the mask body cavity 30 is connected to the mask body tube 2, and the gas can enter the mask body cavity 30 through the mask body tube 2.

[0068] In order to achieve the purpose of assisting the insertion of the laryngeal mask, in an embodiment of the present invention, the insertion guide plate 6 and the laryngeal mask body are detachably connected, wherein when the insertion guide plate 6 and the laryngeal mask body are connected to each other, the tail of the insertion guide plate 6 can correspond to the mask body tube 2, and the insertion guide plate 6 can at least reach the middle and rear part of the opening of the mask body cavity 30; specifically, when the mask body cavity 30 is inserted into the pharyngeal cavity, the head of the mask body tube 2 adjacent to the mask body cavity 30 is located in the oral cavity, and the tail of the mask body tube 2 relatively away from the mask body cavity 30 is located outside the oral cavity. After the tail of the insertion guide plate 6 corresponds to the mask body tube 2, the tail of the insertion guide plate 6 can be conveniently pulled, so as to facilitate the separation of the insertion guide plate 6 from the laryngeal mask body after connection, and until the insertion guide plate 6 is completely pulled out of the pharyngeal cavity and the oral cavity. When the mask cavity 30 is inserted into the throat cavity, according to the relationship between the insertion process of the mask cavity 30 and the tongue, it is known that the insertion guide plate 6 is needed to block the middle and rear part of the opening of the mask cavity 30. The middle and rear part of the opening of the mask cavity 30 specifically refers to the part adjacent to the mask tube 2. Generally, the insertion guide plate 6 is used to block 1 / 3 to 2 / 3 of the opening of the mask cavity 30. At this time, the tongue can be prevented from entering the mask cavity 30, and the normal process of the mask cavity 30 entering the throat cavity will not be affected.

[0069] In the embodiment of the present invention, after the mask body 1 is inserted into the throat cavity, generally, the tail end of the insertion guide plate 6 is located outside the oral cavity, and the connection between the insertion guide plate 6 and the laryngeal mask body can be released by manipulating the tail end of the insertion guide plate 6. After the connection is released, by continuing to pull the tail end of the insertion guide plate 6, the head end of the insertion guide plate 6 can be withdrawn from the throat cavity, thereby achieving the purpose of completely separating the insertion guide plate 6 from the laryngeal mask body.

[0070] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, the insertion guide plate 6 includes an opening sealing plate 20 and a tail end plate 23 that can be adapted to the cover tube 2, and the tail end plate 23 is connected to the opening sealing plate 20 through a transition connecting plate 22;

[0071] When the guide plate 6 is inserted and connected to the laryngeal mask body, the opening of the mask cavity 30 can be blocked by the opening sealing plate 20, and the transition connecting plate 22 can be adapted to the rear end of the mask body 1 and the joint between the mask body 1 and the mask body tube 2; the rear end plate 23 corresponds to the front side of the mask body tube 2, and an end plate connecting hole 24 is provided at the end of the rear end plate 23, and the rear end plate 23 can be clamped on the tube handle 4 at the rear end of the mask body tube 2 through the end plate connecting hole 24.

[0072] In the embodiment of the present invention, the shape of the opening sealing plate 20 is adapted to the opening of the mask body cavity 30, and the shape of the opening sealing plate 20 can be an ellipse. The opening sealing plate 20, the transition connecting plate 22 and the tail end plate 23 are coaxially distributed. In specific implementation, the shape of the insertion guide plate 6 formed by the opening sealing plate 20, the transition connecting plate 22 and the tail end plate 23 is similar to the shape of the laryngeal mask body, so that when the insertion guide plate 6 and the laryngeal mask body are connected to each other, at least the middle and rear part of the opening of the mask body cavity 30 can be covered by the opening sealing plate 20. When the opening sealing plate 20 covers the opening of the mask body cavity 30, the opening sealing plate 20 can generally be pressed on the mask body cavity 30. The head end of the mask body 1 refers to the end away from the mask body tube 2, the tail end of the mask body 1 refers to the end adjacent to the mask body tube 2, and the front side of the mask body tube 2 corresponds to the front of the entire laryngeal mask.

[0073] In order to adapt to the tail end of the mask body 1 and the shape of the joint between the mask body 1 and the mask body tube 2, the opening sealing plate 20 is connected to the tail end plate 23 through the transition connecting plate 22, that is, the opening sealing plate 20 and the tail end plate 23 can be effectively fitted with the laryngeal mask body through the transition connecting plate 22, so as not to affect the process of inserting the laryngeal mask body into the throat cavity through the oral cavity. The tail end plate 23 can be matched with the mask body tube 2. Generally, the length of the tail end plate 23 can be less than the length of the mask body tube 2. The tail end plate 23 can be clamped on the tube handle 4 of the mask body tube 2 through the end plate connecting hole 24, so as to realize the effective connection and cooperation between the insertion guide plate 6 and the laryngeal mask body. In addition, a tail end plate positioning hole 9 is also provided at the end of the tail end plate 23, and the tail end plate positioning hole 9 passes through the tail end plate 23. The tail end plate positioning hole 9 is located at the tail end of the tail end plate 23. The tail end plate 23 can be conveniently manipulated through the tail end plate positioning hole 9, and the pulling of the tail end plate 23 can be realized.

[0074] In specific implementation, after the tail end plate 23 is clamped on the tube body handle 4 through the end plate connection hole 24, the insertion guide plate 6 and the laryngeal mask body can be basically connected to each other. When it is necessary to release the connection between the insertion guide plate 6 and the laryngeal mask body, it is only necessary to withdraw the tube body operating handle 4 from the end plate connection hole 24, and then pull the entire insertion guide plate 6 outward through the tail end plate 23, so that the insertion guide plate 6 can be withdrawn from the throat cavity, and finally the insertion guide plate 6 and the laryngeal mask body are completely separated.

[0075] Furthermore, a sealing plate cover body mechanism is also provided on the opening sealing plate 20. When the opening sealing plate 20 blocks the opening of the cover body cavity 30, the sealing plate cover body mechanism can extend into the cover body cavity 30, and the sealing plate cover body mechanism can prevent the opening sealing plate 20 from moving toward the rear end close to the cover body 1, so as to keep the opening sealing plate 20 covering the opening of the cover body cavity 30 during the process of the cover body 1 being placed into the throat cavity.

[0076] In the embodiment of the present invention, the reliability of the connection between the insertion guide plate 6 and the laryngeal mask body can be further improved by the locking mechanism for connecting the sealing plate and the mask body, thereby avoiding separation or displacement between the insertion guide plate 6 and the laryngeal mask body during the process of inserting the mask body 1 into the laryngeal cavity. Generally, after the insertion guide plate 6 is connected to the laryngeal mask body, the front side of the insertion guide plate 6 is relatively smooth, which reduces the friction resistance caused by contact with the tongue, etc., and can also facilitate the separation of the insertion guide plate 6 from the laryngeal mask body. The front side of the insertion guide plate 6 specifically refers to the surface of the insertion guide plate 6 away from the laryngeal mask body after being connected to the laryngeal mask body, and the back side of the insertion guide plate 6 specifically refers to the surface adjacent to the laryngeal mask body.

[0077] Furthermore, the sealing plate cover body mechanism includes a blocking and locking block 12 arranged on the opening sealing plate 20, and the blocking and locking block 12 is located at the end of the opening sealing plate 20 adjacent to the transition connecting plate 22. When the opening sealing plate 20 closes the opening of the cover body cavity 30, the blocking and locking block 12 can extend into the cover body cavity 30 and is adjacent to the rear end of the cover body 1, and the end of the blocking and locking block 12 extending into the cover body cavity 30 is located below the upper edge of the rear end of the cover body 1.

[0078] In the embodiment of the present invention, during the process of inserting the laryngeal mask body into the throat cavity, the blocking locking block 12 cooperates with the rear end of the mask body 1 to prevent the tongue or the like from pushing the opening sealing plate 20 toward the direction close to the mask body tube 2, thereby ensuring that the opening sealing plate 20 can always effectively cover the opening of the mask body cavity 30.

[0079] In specific implementation, the blocking and locking block 12 is hook-shaped. Generally, the depth of the blocking and locking block 12 extending into the mask body cavity 30 is small, so as not to affect the pulling out of the insertion guide plate 6 from the throat cavity. The insertion guide plate 6, the blocking and locking block 12 and the mask body 1 can generally be made of medical silicone, etc., so that when the tail end plate 23 is pulled hard, the deformation of the blocking and locking block 12 itself will not block the pulling of the insertion guide plate 6.

[0080] Furthermore, the insertion guide plate 6 further includes a front end plate 18 connected to the opening sealing plate 20, and the front end plate 18 and the transition connecting plate 22 are respectively located at two ends of the opening sealing plate 20;

[0081] When the guide plate 6 is inserted and connected to the laryngeal mask body, the front end plate 18 can extend into the head end of the mask body cavity 30.

[0082] In an embodiment of the present invention, the front end plate 18 is circular in shape, and the width of the front end plate 18 is smaller than the width of the opening sealing plate 20. Generally, the front end plate 18 is coaxially distributed with the opening sealing plate 20 and the rear end plate 23, and the front end plate 18 and the transition connecting plate 22 are respectively located at both ends of the opening sealing plate 20. When the insertion guide plate 6 includes the front end plate 18, when the insertion guide plate 6 and the laryngeal mask body are connected to each other, the front end plate 18 can extend into the head end of the mask body cavity 30. After the front end plate 18 extends into the head end of the mask body cavity 30, the end of the opening sealing plate 20 adjacent to the front end plate 18 will also be partially located in the mask body cavity 30, thereby enabling the matching transition between the front end plate 18 and the opening of the mask body cavity 30 to be achieved; at this time, the front end plate 18 cooperates with the opening sealing plate 20 to completely block the opening of the mask body cavity 30. Of course, when the front end plate 18 and the opening sealing plate 20 are used to block the opening of the mask body cavity 30, there may or is allowed to be a gap between the two sides of the front end plate 18 and the opening sealing plate 20 and the mask body 1. The size of the gap is based on being able to block the tongue, etc. from entering the mask body cavity 30, that is, it cannot affect the auxiliary insertion process of the mask body 1 using the insertion guide plate 6.

[0083] Furthermore, a front end plate connection locking mechanism is included, through which the front end plate 18 inserted into the guide plate 6 can be locked in the front end of the cover body cavity 30.

[0084] In the embodiment of the present invention, the front end plate connection locking mechanism includes a locking bolt 13 disposed in the front end of the cover body 1 and a front end plate locking hole 19 disposed on the front end plate 18, wherein the front end plate locking hole 19 allows the locking bolt 13 to be embedded.

[0085] In the embodiment of the present invention, the locking bolt 13 is located in the front end of the mask body 1. When the locking bolt 13 is embedded in the locking hole 19 of the front end plate, an effective connection between the locking bolt 13 and the front end plate 18 can be achieved. When the locking bolt 13 is effectively connected to the front end plate 18, the front end plate 18 can be prevented from falling out of the mask body cavity 30 during the process of the laryngeal mask body being placed in the throat cavity.

[0086] like Fig.15 As shown, the locking bolt 13 is obliquely distributed in the cover body 1, and an end plate locking step 33 is provided on the outer wall of the locking bolt 13. After the locking bolt 13 is embedded in the front end plate locking hole 19, the end plate locking step 33 can be used to lock the locking bolt 13 and the front end plate 18 with each other.

[0087] In the embodiment of the present invention, the locking bolt 13 is obliquely distributed in the mask body 1, and an end plate locking step 33 is provided on the outer wall of the locking bolt 13. After the locking bolt 13 is embedded in the front end plate locking hole 19, the locking bolt 13 and the front end plate 18 can be locked to each other by using the end plate locking step 33. In the embodiment of the present invention, the locking bolt 13, the end plate locking step 33 and the front end plate 18 are all made of flexible materials, such as medical silica gel, so that after the locking bolt 13 is connected to the front end plate 18, the front end plate 18 and the locking bolt 13 can be effectively separated by pulling the tail end plate 23, that is, it will not affect the separation of the insertion guide plate 6 and the laryngeal mask body.

[0088] In summary, the device for assisting laryngeal mask insertion of the present invention can be obtained, comprising an insertion guide plate 6 that can be adapted to the laryngeal mask body to be inserted, the insertion guide plate 6 comprising an opening sealing plate 20 and a tail end plate 23, the opening sealing plate 20 being connected to the tail end plate 23 via a transition connecting plate 22;

[0089] The opening sealing plate 20 can be adapted to the opening of the mask body cavity 30 of the laryngeal mask body. The opening sealing plate 20 can at least cover the middle and rear part of the opening of the mask body cavity 30. When the opening sealing plate 20 covers the opening of the mask body cavity 30, the tail end plate 23 can correspond to the mask body tube 2 of the laryngeal mask body by using the transition connecting plate 22.

[0090] In the embodiment of the present invention, the specific conditions between the opening sealing plate 20, the tail end plate 23 and the transition connecting plate 22 inserted into the guide plate 6, as well as the specific connection and coordination with the laryngeal mask body can all be referred to the above description and will not be repeated here.

[0091] Furthermore, a video head assembly hole 26 for assembling a video head is provided on the opening sealing plate 20 , and the video head assembly hole 26 passes through the opening sealing plate 20 . A line arranging and storing mechanism for arranging and storing video lines is provided on the back side of the opening sealing plate 20 .

[0092] In the embodiment of the present invention, a video head can be installed through the video head assembly hole 26. After the insertion guide plate 6 and the laryngeal mask body are connected to each other, the video head can obtain real-time video image information of the process of the laryngeal mask body being inserted into the throat cavity, so as to further improve the efficiency of the laryngeal mask body being inserted into the throat cavity. Figure 1 , Figure 2 , Figure 3 and Figure 4 In the embodiment 1, the video head assembly hole 26 is not provided on the opening sealing plate 20. Generally, the video head is connected to the external display screen by wires, so the wires connecting the video head and the display screen need to be stored and sorted by the wire arranging and storing mechanism.

[0093] Further, the thread arrangement and storage mechanism includes a thread groove 27 or a thread barrel 29;

[0094] When the wire arrangement and storage mechanism is a wire groove 27, the wire groove 27 is arranged on the opening sealing plate 20, the transition connecting plate 22 and the tail end plate 23, and the end of the wire groove 27 adjacent to the video head assembly hole 26 is connected to the video head assembly hole 26;

[0095] When the wire arrangement and storage mechanism is a wire barrel 29 , the wire barrel 29 is obliquely arranged on the back side of the opening sealing plate 20 , and the wire barrel 29 is connected to the video head assembly hole 26 .

[0096] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, it is an embodiment of the line body arrangement and storage mechanism using a line body groove 27, wherein the line body groove 27 is located on the back of the opening sealing plate 20, the transition connecting plate 22 and the tail end plate 23, one end of the line body groove 27 is connected to the video head assembly hole 26, the video head assembly hole 26 is generally located in the central area of ​​the opening sealing plate 20, and the arc-shaped concave surface 21 of the sealing plate is set on the front of the opening sealing plate 20. The line body groove protrusion 25 corresponding to the line body groove 27 is set on the front of the opening sealing plate 20, the transition connecting plate 22 and the tail end plate 23, and the arc-shaped concave surface 21 of the sealing plate can reduce the height of the line body groove protrusion 25 above the mask cavity 30, thereby reducing the impact on the laryngeal mask body being placed in the throat cavity. When in use, the video head can use a common camera, and the video head assembly hole 26 will not affect the video head's collection of video information, and the line body connected to the video head can be stored in the line body groove 27, that is, the line body of the video head can be stored between the insertion guide plate 6 and the mask tube 2. In addition, after the wire groove 27 is provided, two blocking locking blocks 12 can be provided on the back side of the opening sealing plate 20 , and the two blocking locking blocks 12 are symmetrically distributed on both sides of the wire groove 27 .

[0097] like Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, it is an embodiment of the line body arrangement and storage mechanism using a line body tube 29, wherein the line body tube 29 is obliquely distributed on the back of the opening sealing plate 20, and the sealing plate hole 28 on the opening sealing plate 20 can form a video head assembly hole 26, and the sealing plate hole 28 passes through the opening sealing plate 20 and can be interconnected with the line body tube 29. Generally, the length of the line body tube 29 is less than the depth of the cover body cavity 30. When the opening sealing plate 20 blocks the opening of the cover body cavity 30, the line body tube 29 is located in the cover body cavity 30, that is, it will not affect the cover body cavity 20, and when the tail end plate 23 is pulled, the pulling of the entire insertion guide plate 6 will not be affected by the length of the line body tube 29, thereby not affecting the separation of the insertion guide plate 6 and the laryngeal mask body. When used specifically, the end of the video head is installed in the video head assembly hole 26, and the line connected to the video head enters the cover body tube 2 through the line body tube 29 and passes through the end of the cover body tube 2 to facilitate the connection of the display screen, etc.

[0098] In the embodiment of the present invention, no matter what implementation form the wire arrangement and storage mechanism adopts, the video head needs to be removed after the laryngeal mask body is accurately placed in the throat cavity. In Example 2, when the wire arrangement and storage mechanism is a wire groove 27, the video head and the wire can move synchronously with the insertion guide plate 6, that is, when the insertion guide plate 6 is separated from the laryngeal mask body, the video head and the wire also withdraw from the throat cavity. For Example 3, that is, when the wire arrangement and storage mechanism is a wire tube 29, it is necessary to first separate the video head from the insertion guide plate 6, and after separation, the insertion guide plate 6 is completely separated from the laryngeal mask body.

[0099] In summary, the system capable of assisting laryngeal mask insertion of the present invention comprises a laryngeal mask body, wherein the laryngeal mask body comprises a mask body capable of covering the oral mucosa around the glottis and a mask body tube 2 sealedly connected to the mask body; the mask body comprises a mask body bottom plate 32 and a mask body 1 arranged on the front side of the mask body bottom plate 32, and a mask body cavity 30 capable of communicating with the mask body tube 2 is arranged in the central area of ​​the mask body 1.

[0100] It also includes an insertion guide plate 6 that can be matched with the laryngeal mask body, and the insertion guide plate 6 and the laryngeal mask body are detachably connected; when the insertion guide plate 6 and the laryngeal mask body are connected to each other, the tail of the insertion guide plate 6 corresponds to the mask body tube 2, the insertion guide plate 6 can at least cover the middle and rear part of the opening of the mask body cavity 30, and the insertion guide plate 6 can follow the mask body 1 through the oral cavity and be inserted into the throat cavity;

[0101] After the mask body 1 is inserted into the throat cavity, the connection between the insertion guide plate 6 and the laryngeal mask body can be released by manipulating the tail end of the insertion guide plate 6, and after pulling the insertion guide plate 6 outward, the head end of the insertion guide plate 6 can be withdrawn from the throat cavity, and the insertion guide plate 6 can be completely separated from the laryngeal mask body 1.

[0102] Specifically, the process of using the insertion guide plate 6 to assist in the insertion of the laryngeal mask can refer to the above description and will not be repeated here.

[0103] Furthermore, a breathing connector 3 is provided at the rear end of the cover body tube 2 , and the breathing connector 3 and the cover body tube 2 can rotate relative to each other.

[0104] In an embodiment of the present invention, the mask tube 2 can be adapted and connected to a ventilator or anesthesia machine through a breathing connector 3, so that the required respiratory support can be achieved. After being connected to a ventilator or anesthesia machine, due to the positional relationship between the laryngeal mask and the ventilator / anesthesia machine, etc., it is known that during use, the mask tube 2 is easily twisted. When the mask tube 2 is in a twisted state, it will affect the smoothness of the respiratory support and the effect of the respiratory support, and the problem cannot be effectively solved at present. In an embodiment of the present invention, the breathing connector 3 and the mask tube 2 can rotate relative to each other, that is, when the mask tube 2 and the laryngeal mask body remain stable, the breathing connector 3 can rotate at the end of the mask tube 2. When the breathing connector 3 rotates at the end of the mask tube 2, the positional influence between the ventilator / anesthesia machine and the laryngeal mask body can be eliminated, so that the mask tube 2 will not be twisted or the twisting of the mask tube 2 can be greatly reduced, thereby improving the smoothness of the respiratory support.

[0105] During specific implementation, the breathing connector 3 generally moves in a circular motion at the tail end of the cover body tube 2. The breathing connector 3 can use the calculation means commonly used in the technical field to realize the circular motion at the tail end of the cover body tube 2. For example, the breathing connector 3 is connected to the cover body tube 2 in the form of bearings, sealing rings, etc. After the connection, it can be ensured that the gas will not escape through the joint between the breathing connector 3 and the cover body tube 2, that is, the air tightness can be guaranteed. The specific connection form can be selected according to needs and will not be repeated here.

[0106] like Fig.13 and Fig.14 , which is a stereoscopic view of the laryngeal mask body of the present invention. Specifically, a sealing film 34 is provided on the upper edge of the inner circle of the mask body cavity 30. The shape of the sealing film 34 is consistent with the shape of the opening of the mask body cavity 30, generally in a heart shape or an ellipse, etc. The upper surface of the mask body can be formed by the sealing film 34. The inner circle of the mask body cavity 30 can be provided with one or more layers of sealing films 34, which can be selected according to needs, as long as the sealing film 34 can be used to seal the joint between the mask body 1 and the oral mucosa around the glottis. After the sealing film 34 is provided on the inner circle of the mask body cavity 30, the existing sealing airbag form can be omitted.

[0107] Furthermore, a side wall groove 11 is recessed on the side of the cover body 1, and the side wall groove 11 can be connected to the suction connecting tube 5. One end of the suction connecting tube 5 extends into the cover bottom plate 32, and the other end of the suction connecting tube 5 is located outside the cover bottom plate 32. A suction connecting head 8 is provided at the end of the suction connecting tube 5 located outside the cover bottom plate 32. The suction connecting head 8 can be connected to a negative pressure suction device, and the liquid guided in the side wall groove 11 can be sucked and discharged through the suction connecting tube 5.

[0108] In the embodiment of the present invention, the side wall groove 11 is recessed in the outer side wall of the mask body 1. Generally, the length of the side wall groove 11 is less than the length of the mask body 1, and the bottom wall of the side wall groove 11 protrudes from the inner wall of the mask body 1. The side wall groove 11 can provide the mask body 1 with the required elastic deformation capacity. During use, some secretions can be diverted under the action of the side wall groove 11 and the side wall groove 11 can be used to collect liquid secretions. After collection, the liquid in the side wall groove 11 can be sucked out through the suction connection tube 5. Generally, when it is necessary to suck the liquid in the side wall groove 11, the suction connection tube 5 is connected to the negative pressure device through the suction connection head 8.

[0109] In a specific implementation, the cross-sectional shape of the side wall groove 11 includes a wave shape, an M shape or a zigzag shape; the side wall groove 11 is located on one side of the cover body 1, or is symmetrically distributed on both side walls of the cover body 1, or is U-shaped on the cover body 1 and the bottom of the U-shape is adjacent to the cover body tube 2.

[0110] In the embodiment of the present invention, the cross-sectional shape of the side wall groove 11 can be wavy, M-shaped, Z-shaped, or zigzag-shaped. When the cross-sectional shape of the side wall groove 11 is M-shaped, the folded head end and tail end are located on the same side. The shape of the cross-sectional shape can be used to enable the side wall groove 11 to have both elastic deformation capability and to effectively guide the secretion liquid on the mask body 1. Of course, in a specific implementation, the side wall groove 11 can be provided on one side of the mask body 1, or the side wall groove 11 can be provided on both sides of the mask body 1, or a U-shaped form can be formed on the mask body 1, and the opening of the U-shape points to the head end of the mask body, that is, the bottom of the U-shape is adjacent to the mask body tube 2.

[0111] Further, a stomach tube groove 10 is provided on the back of the cover bottom plate 32. The stomach tube groove 10 is located on the cover bottom plate 32 at the head end of the cover bottom plate 32. The long axis direction of the stomach tube groove 10 is consistent with the long axis direction of the cover bottom plate 32. The stomach tube groove 10 is located in the central area of ​​the cover bottom plate 32, and the stomach tube groove 10 runs through the head end of the cover.

[0112] The stomach tube groove 10 can be connected with the side wall groove 11 through the side suction guide hole 16. The head end of the suction connecting tube 5 is buried in the cover bottom plate 32. The suction connecting tube 5 is directly connected with the stomach tube groove 10, and the suction connecting tube 5 is connected with the side wall groove 11 through the stomach tube groove 10 and the side suction guide hole 16.

[0113] In the embodiment of the present invention, the bottom of the stomach tube groove 10 is close to the mask body 1, that is, the stomach tube groove 10 is located on the back of the mask bottom plate 32. The stomach tube groove 10, the side suction guide hole 16 and the side wall groove 11 are all isolated from the mask cavity 30, that is, they will not affect the normal respiratory support of the mask cavity 30. The length of the stomach tube groove 10 is less than the length of the mask bottom plate 32, and the width of the stomach tube groove 10 is less than the width of the mask bottom plate 32. Generally, the size of the stomach tube groove 10 is adapted to the size of the stomach tube, that is, the stomach tube can be embedded in the stomach tube groove 10. The stomach tube groove 10 passes through the head end of the mask bottom plate 32, that is, the head end of the mask bottom plate 32 has an opening. When the stomach tube is placed in the stomach tube groove 10, it will not affect the stomach tube from entering the stomach, that is, the stomach tube can smoothly pass through the head end opening of the mask bottom plate 32 until it is inserted into the stomach tube.

[0114] After the stomach tube groove 10 is arranged on the back of the mask body bottom plate 32, in order to improve the convenience of suction of liquid secretions, the stomach tube groove 10 is connected with the side wall groove 11, that is, the stomach tube groove 10 can be connected with the side wall groove 11 through the side suction guide hole 16, and the side suction guide hole 16 is located between the stomach tube groove 10 and the side wall groove 11. The side wall groove 11 is connected with the side suction guide hole 16, and the secretions on the mask body 1 are guided to the stomach tube groove 10 through the side suction guide hole 16 and the side wall groove 11. The side wall groove 11 cooperates with the side suction guide hole 16 to prevent the secretions from blocking the side suction guide hole 16, and can provide the elastic deformation capacity required by the mask body 1, thereby improving the stability and reliability of secretion suction and diversion. The liquid diverted by the side wall groove 11 can enter the stomach tube groove 10 through the side suction diversion hole 16, the head end of the suction connection tube 5 is directly connected to the stomach tube groove 10, and the suction connection tube 5 can be connected to the side suction connection hole 19 and the side wall groove 11 through the stomach tube groove 10, so that the liquid in the stomach tube groove 10 and the side wall groove 11 can be sucked through the suction connection tube 5. The liquid is generally sputum.

[0115] During the air supply process of the laryngeal mask, in order to meet the need of negative pressure suction, the suction connection tube 5 can be connected to an external negative pressure suction device through the suction connection head 8, and the secretions in the oral cavity during the air supply process can be sucked out through the cooperation of the negative pressure device and the suction connection tube 5. Specifically, the head of the suction connection tube 5 connected to the suction mechanism is arranged in the bottom plate 32 of the mask body, and the end of the suction connection tube 5 close to the head end of the bottom plate 32 of the mask body is connected to the gastric tube groove 10, and the end of the suction connection tube 5 away from the bottom plate 32 of the mask body can be connected to the negative pressure suction device. After the suction connection tube 5 is connected to the negative pressure suction device, a negative pressure can be formed in the gastric tube groove 10 through the suction connection tube 5. After the gastric tube groove 10 has a negative pressure, the gas, gastric juice or oral secretions in the stomach can enter the gastric tube groove 10 and be sucked out.

[0116] In specific implementation, the suction connection tube 5 can be detachably connected to the negative pressure suction device through the suction connection head 8. The negative pressure suction device can adopt an existing commonly used structural form, which can be selected according to needs and will not be repeated here.

[0117] Furthermore, the mask body tube 2 includes a ventilation tube cavity 17 that can be communicated with the mask body cavity 30 and a pressure regulating tube cavity 15 that can be communicated with the gastric tube groove 10, the ventilation tube cavity 17 is connected to the breathing connector 3 at the end of the mask body tube 2, the pressure regulating tube cavity 15 is connected to the pressure regulating port 14 on the mask body tube 2, and the pressure regulating tube cavity 15 and the ventilation tube cavity 17 are isolated from each other.

[0118] In an embodiment of the present invention, the pressure regulating lumen 15 and the ventilation lumen 17 are two mutually isolated cavities, which can cooperate with the ventilator through the ventilation lumen 17 and the breathing connector 3 to achieve the required respiratory support. When used specifically, the pressure regulating lumen 15 and the gastric tube groove 10 can be adapted to the gastric tube; the gastric tube can be embedded in the gastric tube groove 10, or enter the pressure regulating lumen 15 through the pressure regulating port 14, and can be placed in the esophagus through the gastric tube groove 10 after being pushed. When the gastric tube is inserted into the stomach through the pressure regulating lumen 15 and the gastric tube groove 10, the gastric tube can be used to drain gastric juice to prevent gastric distension and reflux aspiration. The gastric tube groove 10 is adapted to the gastric tube. After the gastric tube is embedded in the gastric tube groove 10, the gastric tube and the gastric tube groove 10 cooperate to avoid affecting the positioning of the mask body 1 and the glottis after the gastric tube is inserted, and will not affect the sealing of the joint between the mask body 1 and the glottis.

[0119] In the embodiment of the present invention, after the pressure regulating lumen 15 is connected to the gastric tube groove 10, when no gastric tube is embedded in the pressure regulating lumen 15, the negative pressure state in the gastric tube groove 10 can be adjusted by the opening size of the pressure regulating port 14, that is, when the external negative pressure is constant, the negative pressure in the gastric tube groove 10 can be reduced to achieve the purpose of pressure reduction. The gastric tube groove 10 penetrates the head end of the cover bottom plate 32 on the back of the cover bottom plate 32, so that the gastric tube can be effectively embedded in the gastric tube groove 10 and achieve effective cooperation with the gastric tube groove 10.

[0120] In the embodiment of the present invention, the ventilation tube cavity 17 can be connected to an external ventilator through the breathing connector 3, and the gas provided by the ventilator can enter the mask body cavity 30 through the breathing tube cavity 17 to achieve the required breathing support. The mask body tube 2 can be conveniently held through the tube handle 4. The breathing connector 3 can specifically adopt a structural form adapted to the ventilator, which is well known to those skilled in the art and will not be described in detail here.

[0121] Furthermore, a supporting convex block is provided at the bottom of the cover body cavity 30 , and the supporting convex block includes a stomach tube groove protrusion 31 corresponding to the stomach tube groove 10 and a plurality of cavity reinforcing ribs distributed on the outside of the stomach tube groove protrusion 31 .

[0122] In the embodiment of the present invention, the support protrusion is located in the cover body cavity 30, and the support protrusion protrudes from the bottom wall of the cover body cavity 30. The gastric tube groove protrusion 31 corresponds to the gastric tube groove 10 on the back of the cover body bottom plate 32, and the cross section of the gastric tube groove protrusion 31 is arc-shaped. Of course, the gastric tube groove protrusion 31 and the gastric tube groove 10 can also adopt a non-corresponding position state. Generally, the length direction of the gastric tube groove protrusion 31 is consistent with the length direction of the cover body bottom plate 32.

[0123] Of course, since the head end of the suction connection tube 5 is buried in the cover bottom plate 32, the portion of the suction connection tube 5 buried in the cover bottom plate 32 forms a suction connection tube buried protrusion in the cover cavity 30, that is, the suction connection tube buried protrusion corresponds to the portion of the suction connection tube 5 buried in the cover bottom plate 32, and the suction connection tube buried protrusion is obliquely distributed in the cover bottom plate 32. Cavity reinforcement ribs can be provided on one side or both sides of the stomach tube groove protrusion 31, and the cavity reinforcement ribs are connected to the stomach tube groove protrusion 31 or the suction connection tube buried protrusion 13.

[0124] When the mask body 1 covers the oral mucosa around the glottis, the support protrusion cooperates with the epiglottis to prevent the epiglottis from blocking the connection between the mask body tube 2 and the mask body cavity 30, that is, the gas passage will not be blocked, ensuring the stability and reliability of ventilation.

[0125] Furthermore, an occlusal positioning portion 7 for tooth occlusal positioning is provided on the mask tube 2. In the embodiment of the present invention, the occlusal positioning portion 7 can facilitate the occlusion of the patient's upper and lower teeth during respiratory support, thereby avoiding damage to the mask tube 2 caused by tooth occlusion. Generally, the mask tube 2 is flat, and the occlusal positioning portions 7 are respectively located on the corresponding side walls of the mask tube 2. The occlusal positioning portion 7 can be formed by providing a plurality of strip-shaped protrusions on the outer wall surface of the mask tube 2. Of course, the occlusal positioning portion 7 can also be formed in other ways, which can be selected according to needs and will not be repeated here.

[0126] A temperature sensing probe for monitoring the temperature of the throat is buried at the head end of the cover bottom plate 32. In an embodiment of the present invention, the temperature sensing probe can be arranged on the side wall of the gastric tube groove 10 or on the cover bottom plate 32 outside the notch of the gastric tube groove 10, that is, when the gastric tube is embedded in the gastric tube groove 10, it will not affect the collection of the throat temperature by the temperature sensing probe. The temperature sensing probe can adopt the existing commonly used form, such as using a temperature sensor. The temperature collected by the temperature sensing probe can be transmitted by wired or wireless means. When the temperature collected by the temperature sensing probe is transmitted by wired means, a cable needs to be set on the temperature sensing probe. The cable can be buried in the cover bottom plate 32 and the cover tube 2, but it is necessary to ensure the stability of the cable transmission signal and avoid the safety problems caused by the cable during the use of the laryngeal mask. When the temperature sensing probe adopts a wireless method to transmit the temperature signal, the specific form of wireless transmission can be selected as needed, which will not be repeated here.

[0127] The temperature can be collected in real time by the temperature sensing probe, which can solve the problem that the throat temperature cannot be effectively collected during respiratory support or surgery. In the embodiment of the present invention, the temperature collected by the temperature sensing probe can be received and processed by a related processor. The processor can be a device with a display screen or an existing medical processing device. As long as it can receive, process and display the temperature data detected by the temperature sensing probe, the specific situation is well known to those skilled in the art and will not be described in detail here.

Claims

1. A device that can assist laryngeal mask insertion, characterized in that: It comprises an insertion guide plate (6) that can be matched with a laryngeal mask body to be inserted, the insertion guide plate (6) comprising an opening sealing plate (20) and a tail end plate (23), the opening sealing plate (20) being connected to the tail end plate (23) via a transition connecting plate (22); The opening sealing plate (20) can be adapted to the opening of the mask body cavity (30) of the laryngeal mask body, and the opening sealing plate (20) can at least cover the middle and rear part of the opening of the mask body cavity (30), wherein the inserted guide plate (6) can cover 1 / 3 to 2 / 3 of the area of ​​the mask body cavity (30); When the opening sealing plate (20) covers the opening of the mask body cavity (30), the tail end plate (23) can correspond to the mask body tube (2) of the laryngeal mask body by using the transition connecting plate (22); The laryngeal mask body comprises a mask body capable of covering the oral mucosa around the glottis, and a mask body tube (2) sealedly connected to the mask body; the mask body comprises a mask body bottom plate (32) and a mask body (1) arranged on the front side of the mask body bottom plate (32); the mask body cavity (30) is located in the central area of ​​the mask body (1), and the mask body cavity (30) is connected to the mask body tube (2); The insertion guide plate (6) and the laryngeal mask body are detachably connected; when the insertion guide plate (6) and the laryngeal mask body are connected to each other, the opening of the mask body cavity (30) can be blocked by the opening sealing plate (20), and the transition connecting plate (22) can be adapted to the rear end of the mask body (1) and the joint between the mask body (1) and the mask body tube (2); the rear end plate (23) corresponds to the front side of the mask body tube (2), and an end plate connecting hole (24) is provided at the end of the rear end plate (23), and the rear end plate (23) can be snap-connected to the tube handle (4) at the rear end of the mask body tube (2) through the end plate connecting hole (24).

2. The device for assisting laryngeal mask insertion according to claim 1, characterized in that: A sealing plate cover body mechanism is also provided on the opening sealing plate (20); when the opening sealing plate (20) blocks the opening of the cover body cavity (30), the sealing plate cover body mechanism can extend into the cover body cavity (30), and the sealing plate cover body mechanism can prevent the opening sealing plate (20) from moving toward the rear end close to the cover body (1), so that the opening sealing plate (20) can be kept blocking the opening of the cover body cavity (30) during the process of the cover body (1) being placed in the throat cavity.

3. The device for assisting laryngeal mask insertion according to claim 2, characterized in that: The sealing plate cover body mechanism comprises a blocking locking block (12) arranged on the opening sealing plate (20), wherein the blocking locking block (12) is located at an end of the opening sealing plate (20) adjacent to the transition connecting plate (22); when the opening sealing plate (20) closes the opening of the cover body cavity (30), the blocking locking block (12) can extend into the cover body cavity (30) and be adjacent to the rear end of the cover body (1); and the end of the blocking locking block (12) extending into the cover body cavity (30) is located below the upper edge of the rear end of the cover body (1).

4. The device for assisting laryngeal mask insertion according to claim 3, characterized in that: The blocking and locking block (12) is hook-shaped.

5. The device for assisting laryngeal mask insertion according to claim 1, characterized in that: A video head assembly hole (26) for assembling a video head is provided on the opening sealing plate (20), and the video head assembly hole (26) passes through the opening sealing plate (20). A line arrangement and storage mechanism for arranging and storing video lines is provided on the back of the opening sealing plate (20).

6. The device for assisting laryngeal mask insertion according to claim 5, characterized in that: The thread arranging and storing mechanism comprises a thread groove (27) or a thread cylinder (29); When the wire arrangement and storage mechanism is a wire groove (27), the wire groove (27) is arranged on the opening sealing plate (20), the transition connecting plate (22) and the tail end plate (23), and the end of the wire groove (27) adjacent to the video head assembly hole (26) is connected to the video head assembly hole (26); When the wire arrangement and storage mechanism is a wire barrel (29), the wire barrel (29) is arranged obliquely on the back side of the opening sealing plate (20), and the wire barrel (29) is communicated with the video head assembly hole (26).

7. A system capable of assisting laryngeal mask insertion, comprising a laryngeal mask body, the laryngeal mask body comprising a mask body capable of covering the oral mucosa around the glottis and a mask body tube (2) sealedly connected to the mask body; the mask body comprises a mask body bottom plate (32) and a mask body (1) arranged on the front side of the mask body bottom plate (32), a mask body cavity (30) capable of communicating with the mask body tube (2) being arranged in the central area of ​​the mask body (1), wherein: It also includes an insertion guide plate (6) that can be matched with the laryngeal mask body, wherein the insertion guide plate (6) and the laryngeal mask body are detachably connected; when the insertion guide plate (6) and the laryngeal mask body are connected to each other, the rear end of the insertion guide plate (6) corresponds to the mask body tube (2), the insertion guide plate (6) can at least cover the middle and rear part of the opening of the mask body cavity (30), and the insertion guide plate (6) can follow the mask body (1) through the oral cavity and be inserted into the pharyngeal cavity, wherein the insertion guide plate (6) is used to cover 1 / 3 to 2 / 3 of the opening of the mask body cavity (30); After the mask body (1) is placed in the throat cavity, the connection between the insertion guide plate (6) and the laryngeal mask body can be released by manipulating the rear end of the insertion guide plate (6), and after the insertion guide plate (6) is pulled outward, the head end of the insertion guide plate (6) can be withdrawn from the throat cavity, and the insertion guide plate (6) and the mask body (1) can be completely separated; The insertion guide plate (6) comprises an opening sealing plate (20) and a tail end plate (23) that can be matched with the cover tube (2), and the tail end plate (23) is connected to the opening sealing plate (20) via a transition connecting plate (22); When the insertion guide plate (6) is connected to the laryngeal mask body, the opening of the mask body cavity (30) can be blocked by the opening sealing plate (20), and the transition connecting plate (22) can be adapted to the rear end of the mask body (1) and the joint between the mask body (1) and the mask body tube (2); the rear end plate (23) corresponds to the front side of the mask body tube (2), and an end plate connecting hole (24) is provided at the end of the rear end plate (23), and the rear end plate (23) can be snap-connected to the tube handle (4) at the rear end of the mask body tube (2) through the end plate connecting hole (24).

8. The system for assisting laryngeal mask insertion according to claim 7, characterized in that: A breathing connector (3) is provided at the rear end of the cover body tube (2), and the breathing connector (3) and the cover body tube (2) are capable of relative rotation.

Images