Multi-channel laryngeal mask

Abstract

The multi-channel laryngeal mask comprises a tube body and a mask bag connected to the tube body, and a main ventilation channel and a temperature detection channel are arranged in the tube body at intervals; a ventilation opening and a temperature detection opening are formed in the mask bag. In the using process, the mask is placed in the upper respiratory tract of a patient, the mask bag is attached to the upper end of the epiglottis of the patient to achieve sealing, and the main ventilation channel on the tube body is connected with an air source to achieve ventilation operation on the patient. The esophagus of the patient can be connected with the atmosphere through the temperature detection channel, and adverse reactions such as gaseous distention in the ventilation process are effectively prevented. Meanwhile, the body temperature detection line can extend into the temperature detection channel, partially extends out through the ventilation opening and then is inserted into the esophagus of the patient, so that relevant operations such as body temperature detection are carried out. And the imbedded instrument does not need to be frequently inserted, pulled and replaced, so that the injury to a patient caused by repeatedly switching the imbedded instrument in an operation process can be effectively avoided. In addition, the operation complexity is reduced, and the operation convenience and the operation efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a multi-channel laryngeal mask. Background Art

[0002] The laryngeal mask is an airway device consisting of an inflatable leaf-shaped silicone mask and a rubber connecting tube. It can be inserted into the throat through the mouth blindly or with vision. When the laryngeal mask airbag is inflated, the expanded laryngeal mask can wrap around and seal the epiglottis and glottis, forming a low-pressure sealed mask around the larynx. The laryngeal mask connecting tube leads to the outside of the mouth and can be connected to a ventilator, allowing spontaneous breathing or positive pressure ventilation.

[0003] During the laryngeal mask surgery, other instruments are sometimes needed to assist the patient. Different instruments need to be inserted and replaced, which is cumbersome and has the risk of injury, and the surgery time is prolonged. Utility Model Content

[0004] Based on this, it is necessary to provide a multi-channel laryngeal mask to address the problem of cumbersome operation of existing laryngeal masks.

[0005] A multi-channel laryngeal mask, comprising:

[0006] The tube body has a main airway and a temperature detection channel arranged in the inner space of the tube body; the main airway is used to connect with the air source; the temperature detection channel is used to insert the body temperature detection line;

[0007] The cuff is connected to the tube body; a ventilation opening and a temperature detection opening are provided on the cuff, wherein the ventilation opening is communicated with the main airway; and the temperature detection opening is communicated with the temperature detection channel.

[0008] In one of the embodiments, the interior of the tube body is further provided with at least one side channel separated from the main airway, wherein one of the side channels is used for inserting a suction tube; and the mask bag is provided with at least one side opening, and each of the side openings is connected to one of the side channels in a one-to-one correspondence.

[0009] In one embodiment, the temperature detection channel and the side channel are arranged at intervals along the circumference of the tube body.

[0010] In one embodiment, the temperature detection channel and the side channel are respectively located on both sides of the main air passage along its own radial direction.

[0011] In one embodiment, the temperature detection opening is connected to the side opening; or

[0012] The temperature detection opening and the side opening are spaced apart; or

[0013] A plurality of the side openings are connected; or

[0014] The plurality of side openings are spaced apart.

[0015] In one embodiment, the extension direction of the main air passage is parallel to the extension direction of the temperature detection channel; or

[0016] An extension direction of the main air passage intersects with an extension direction of the temperature detection channel.

[0017] In one embodiment, the multi-channel laryngeal mask further comprises a ventilation connector connected to the tube body, and the ventilation connector is used to connect the main airway and the air source.

[0018] In one embodiment, the outer diameter of the vent connector is smaller than the outer diameter of the main vent channel.

[0019] In one embodiment, the tube is arc-shaped.

[0020] In one embodiment, the cuff is oval-shaped.

[0021] During use, the above-mentioned multi-channel laryngeal mask is inserted into the patient's upper respiratory tract, and a seal is achieved by fitting the mask bag to the upper end of the patient's epiglottis, and the main airway on the tube body is connected to the air source to achieve ventilation operation on the patient. The temperature detection channel opened on the tube body can connect the patient's esophagus to the atmosphere, which can effectively prevent the occurrence of adverse reactions such as flatulence during ventilation. At the same time, the temperature detection line can be extended into the temperature detection channel and extend a part through the ventilation opening, and then inserted into the patient's esophagus. The instrument is connected through the temperature detection line, and the insertion depth of the temperature detection line can be adjusted, so as to perform temperature detection and other related operations. There is no need to frequently plug and unplug the implanted instrument, which can effectively avoid the damage to the patient caused by repeated switching of the implanted instrument during the operation. It also reduces the cumbersomeness of the operation and improves the convenience and efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic diagram of a multi-channel laryngeal mask according to an embodiment of the present application.

[0023] FIG. 2 is a schematic diagram of the multi-channel laryngeal mask shown in FIG. 1 from another viewing angle.

[0024] FIG. 3 is a partial perspective view of the multi-channel laryngeal mask shown in FIG. 1 .

[0025] Figure numbers: 100, multi-channel laryngeal mask; 110, tube body; 111, main airway; 112, temperature detection channel; 113, side channel; 120, mask bag; 121, ventilation opening; 122, temperature detection opening; 123, side opening; 131, ventilation connector; 132, temperature detection connector; 133, suction connector; 141, temperature detection line; 142, suction tube. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0032] Existing laryngeal mask products only include a single channel. During the operation using the laryngeal mask, other instruments are sometimes needed to assist the patient. For the insertion of different instruments, plug-in and pull-out operations are required, which is cumbersome and has the risk of injury, and the operation time is prolonged.

[0033] Based on this, the present application provides a multi-channel laryngeal mask, which can solve the above technical problems. The multi-channel laryngeal mask provided by an embodiment of the present application will be described in detail below in conjunction with the accompanying drawings.

[0034] Referring to Figures 1 to 3, a multi-channel laryngeal mask 100 provided in an embodiment of the present application includes a tube body 110 and a mask bag 120 connected to the tube body 110; the internal interval of the tube body 110 is provided with a main airway 111 and a temperature detection channel 112; the main airway 111 is used to connect to an air source; the temperature detection channel 112 is used to insert a body temperature detection line 141; a ventilation opening 121 and a temperature detection opening 122 are opened on the mask bag 120, and the ventilation opening 121 is connected to the main airway 111; the temperature detection opening 122 is connected to the temperature detection channel 112.

[0035] The above-mentioned multi-channel laryngeal mask 100 is inserted into the patient's upper respiratory tract during use, and the mask bag 120 is fitted with the upper end of the patient's epiglottis to achieve sealing, and the main airway 111 on the tube body 110 is connected to the air source to achieve ventilation operation on the patient. The temperature detection channel 112 opened on the tube body 110 can connect the patient's esophagus with the atmosphere, which can effectively prevent the occurrence of adverse reactions such as flatulence during ventilation. At the same time, the body temperature detection line 141 can be inserted into the temperature detection channel 112 and extend a part through the ventilation opening 121, and then inserted into the patient's esophagus. The instrument is connected through the body temperature detection line 141, and the insertion depth of the body temperature detection line 141 can be adjusted, so as to perform related operations such as body temperature detection, thereby improving the safety of the patient during the operation. There is no need to frequently plug and unplug the implanted instrument, which can effectively avoid the damage to the patient caused by repeated switching of the implanted instrument during the operation. It also reduces the cumbersomeness of the operation and improves the convenience and efficiency of the operation.

[0036] Referring to FIG. 3 , in one embodiment, at least one side channel 113 spaced apart from the main airway 111 is further provided inside the tube body 110, and one of the side channels 113 is used to insert a sputum suction tube 142; at least one side opening 123 is provided on the mask bag 120, and each side opening 123 is connected to a side channel 113 in a one-to-one correspondence. In this way, the sputum suction tube 142 can be inserted into the side channel 113, and a portion of it can be extended through the side opening 123, and then can be inserted into the patient's esophagus. The sputum suction tube 142 is connected to a vacuum source, and sputum suction and other operations can be performed to suck out secretions in the patient's esophagus, thereby reducing surgical risks.

[0037] In other embodiments, there are at least two side channels 113, one of which is used to insert the sputum suction tube 142, and the other side channel 113 can be placed with a visual device such as a visual mirror or a camera for real-time observation, so as to realize visualization of the multi-channel laryngeal mask 100 and reduce the risk of blind insertion. Furthermore, a drainage channel can be provided for inserting a suction tube to realize drainage operation.

[0038] Referring to FIGS. 1 to 3 , in one embodiment, the temperature detection channel 112 and the side channel 113 are arranged at intervals along the circumference of the tube body 110. By arranging the temperature detection channel 112 and the side channel 113 at intervals along the circumference, the possibility of interference or entanglement between the body temperature detection line 141 and the sputum suction tube 142 can be reduced, the reliability of the use of the implanted device is ensured, and the reliability of the use of the multi-channel laryngeal mask 100 is improved.

[0039] Referring to Figures 1 to 3, in one embodiment, the temperature detection channel 112 and the side channel 113 are respectively located on both sides of the main airway 111 along its own radial direction. Such a configuration can reduce the possibility of interference between the instruments placed in the temperature detection channel 112 and the side channel 113, ensure the reliability of the placed instruments, and thus improve the reliability of the multi-channel laryngeal mask 100.

[0040] Referring to FIGS. 1 to 3 , in one embodiment, the temperature detection opening 122 and the side opening 123 are spaced apart, that is, the temperature detection opening 122 and the side opening 123 are in an 8-shape as a whole, so that the body temperature detection line 141 and the sputum suction tube 142 can extend from the temperature detection opening 122 and the side opening 123, respectively. Furthermore, the plurality of side openings 123 can also be spaced apart.

[0041] In other embodiments, the temperature detection opening 122 and the side opening 123 provided on the mask bag 120 are connected, that is, the temperature detection opening 122 and the side opening 123 are elliptical as a whole, so that the body temperature detection line 141 and the sputum suction tube 142 can extend from the elliptical opening. Furthermore, multiple side openings 123 can also be connected.

[0042] Referring to FIG. 3 , in one embodiment, the extension direction of the main airway 111 is parallel to the extension direction of the temperature detection channel 112. The main airway 111 and the temperature detection channel 112 are arranged almost straight, so that the implanted device can pass smoothly through the main airway 111 and the temperature detection channel 112 without being stuck in the middle, thereby ensuring the use effect and reducing the difficulty of operation.

[0043] In other embodiments, the extension direction of the main air passage 111 may intersect with the extension direction of the temperature detection channel 112 .

[0044] Referring to FIGS. 1 to 3 , in one embodiment, the multi-channel laryngeal mask 100 further includes a ventilation connector 131 connected to the tube body 110 , and the ventilation connector 131 is used to connect the main airway 111 to an external air source to achieve ventilation operation for the patient.

[0045] 1 to 3 , in one embodiment, the outer diameter of the vent connector 131 is smaller than the outer diameter of the main vent channel 111. Thus, when the vent connector 131 is connected to the tube body 110, quick plugging can be achieved, reducing the difficulty of operation.

[0046] It can be understood that, referring to Figures 1 to 3, in some embodiments, the multi-channel laryngeal mask 100 further includes a temperature detection connector 132, which is used to connect the body temperature detection line 141 to the instrument. Further, the multi-channel laryngeal mask 100 further includes a sputum suction connector 133 for connecting the sputum suction tube 142 and the vacuum source.

[0047] 1 to 3 , in one embodiment, the tube body 110 is arc-shaped, so that the multi-channel laryngeal mask 100 can be bent to fit the human body structure after being placed in the upper respiratory tract of the human body.

[0048] Furthermore, the tube body 110 adopts a bellows at the curvature design, so that the tube body 110 can be bent and twisted, so that after the laryngeal mask is placed in the upper respiratory tract of the human body, it can be bent to fit the human body structure. When it is necessary to insert an endoscope such as a fiber bronchoscope into the airway and lungs for observation or auxiliary surgery, it can reduce the possibility that the tube body 110 follows the fiber bronchoscope when the fiber bronchoscope is used and rotated, and keep the mask bag 120 immobile to close the airway, thereby ensuring the use effect of the laryngeal mask and reducing the probability of damage to the human body, which is conducive to the promotion and application of the laryngeal mask.

[0049] In some embodiments, the tube body 110 is made of a flexible material, such as polyvinyl chloride. The density of pure polyvinyl chloride is 1.4 g / cm 3 The density of PVC plastic parts with plasticizers and fillers is generally 1.15g / cm 3 -2.00g / cm 3 The softness, elongation at break and cold resistance of soft polyvinyl chloride will be increased, which can effectively ensure the service life of the laryngeal mask. The tube body 110 in this embodiment is made of silicone material with a hardness of 45 to 65 degrees, which makes the tube body 110 easier to bend and more convenient to operate.

[0050] Referring to Figures 1 to 3, in one embodiment, the cuff is elliptical, and the size of the cuff head changes gradually. This arrangement can reduce the difficulty of inserting the cuff 120 into the patient's body and improve the convenience of using the multi-channel laryngeal mask 100.

[0051] Among them, the cuff 120 is made of ultra-soft elastic material, such as medical soft rubber and other materials, so that the cuff 120 can be placed in the patient's upper respiratory tract through its own deformation, and fit well with the upper end of the patient's epiglottis to achieve sealing. At the same time, because the cuff is made of soft material, it alleviates the pressure and foreign body sensation of the cuff 120 on the throat to a certain extent, improving the patient's experience. Furthermore, the cuff 120 is an inflation-free cuff 120. In this way, during the insertion of the cuff 120, there is no need to perform inflation and deflation operations, thereby reducing pressure on the patient's mucosa and reducing the risk of injury; and it can also reduce preoperative preparations, thereby reducing the complexity and difficulty of operation, making the use of the laryngeal mask more convenient.

[0052] In some embodiments, the tube body 110 and the cover bag 120 include but are not limited to integral molding, secondary injection molding, and assembly molding. Both the tube body 110 and the cover bag 120 are provided with a lubricating layer for easy insertion.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A multi-channel laryngeal mask, characterized in that: The multi-channel laryngeal mask comprises: A tube body (110), wherein a main airway (111) and a temperature detection channel (112) are arranged in an internal interval of the tube body (110); the main airway (111) is used to connect to an air source; the temperature detection channel (112) is used to insert a body temperature detection line (141); The cover bag (120) is connected to the tube body (110); a ventilation opening (121) and a temperature detection opening (122) are provided on the cover bag (120); the ventilation opening (121) is in communication with the main air passage (111); and the temperature detection opening (122) is in communication with the temperature detection channel (112).

2. The multi-channel laryngeal mask according to claim 1, characterized in that: At least one side channel (113) spaced apart from the main airway (111) is further provided inside the tube body (110), wherein one of the side channels (113) is used for inserting a sputum suction tube (142); At least one side opening (123) is provided on the mask bag (120), and each of the side openings (123) is in one-to-one communication with one of the side channels (113).

3. The multi-channel laryngeal mask according to claim 2, characterized in that: The temperature detection channel (112) and the side channel (113) are arranged at intervals along the circumference of the tube body (110).

4. The multi-channel laryngeal mask according to claim 3, characterized in that: The temperature detection channel (112) and the side channel (113) are respectively located on two sides of the main air passage (111) along its own radial direction.

5. The multi-channel laryngeal mask according to claim 2, characterized in that: The temperature detection opening (122) and the side opening (123) are in communication; or The temperature detection opening (122) and the side opening (123) are spaced apart; or The plurality of side openings (123) are connected; or The plurality of side openings (123) are spaced apart.

6. The multi-channel laryngeal mask according to claim 1, characterized in that: The extension direction of the main air passage (111) is parallel to the extension direction of the temperature detection channel (112); or An extension direction of the main air passage (111) intersects with an extension direction of the temperature detection channel (112).

7. The multi-channel laryngeal mask according to claim 1, characterized in that: The multi-channel laryngeal mask further comprises a ventilation connector (131) connected to the tube body (110), wherein the ventilation connector (131) is used to connect the main airway (111) and the air source.

8. The multi-channel laryngeal mask according to claim 7, characterized in that: The outer diameter of the ventilation joint (131) is smaller than the outer diameter of the main ventilation channel (111).

9. The multi-channel laryngeal mask according to claim 1, characterized in that: The tube body (110) is arc-shaped.

10. The multi-channel laryngeal mask according to claim 1, characterized in that: The cuff (120) is elliptical in shape.

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