Novel laryngeal mask facilitating operation of bronchoscope

Abstract

The utility model discloses a novel laryngeal mask convenient for operation of a bronchoscope. The novel laryngeal mask comprises a mask part, wherein the mask part comprises a base and a mask bag; the base is provided with a plane, and the plane downwards and backwards forms a cover part channel communicated with the ventilation part; a mask bag is formed around the plane and is an inflatable and deflatable air bag, and the front end of the mask bag does not exceed the tip of the plane when the mask bag is inflated; the section of the ventilation part is oval, and the ventilation part is provided with a ventilation pipe and an inflation pipe; the upper end part of the ventilation part is provided with a connecting part, and the lower end part is connected with the cover part; the ventilation part is arc-shaped from the middle section to the lower section; a ventilation pipe with a gourd-shaped section is formed in the ventilation part in the length direction and connected with a cover part channel. The upper end of the inflation tube is provided with a mask bag ventilation valve; the connecting part comprises a main pipe and a side pipe; the bottom ends of the main pipe and the side pipe are communicated with the breather pipe; an openable sealing cover is arranged at the top end of the main pipe, and an openable sealing plug is further arranged on the sealing cover. The bronchoscope can move in the laryngeal mask conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, in particular to a novel laryngeal mask facilitating bronchoscope operation. BACKGROUND

[0002] Bronchoscope has been widely used in the diagnosis and treatment of airway and lung diseases, and is very popular in clinical application. In addition to great progress in the diagnosis of respiratory system diseases, the indications in treatment are also increasing, and it is not only applied to the treatment of various airway benign and malignant lesions, but also recognized in the treatment of peripheral lung lesions and chronic lung diseases.

[0003] With the further development of painless medicine, painless or general anesthesia bronchoscopy has become the main mode of bronchoscopy intervention. At present, most of the painless or general anesthesia bronchoscopy adopts laryngeal mask ventilation and operation mode, and general anesthesia bronchoscopy also adopts laryngeal mask ventilation during induction and postoperative recovery.

[0004] Therefore, the laryngeal mask is very important in bronchoscopy diagnosis and treatment, but at present, the laryngeal mask used in bronchoscopy diagnosis and treatment has the following shortcomings:

[0005] 1. Due to the insufficient size of the laryngeal mask lumen and the large bending angle, the bronchoscope is not smooth when inserted and operated, the mirror is too large when rubbed with the wall, the angle of entering the glottis is not enough, which affects the smoothness and efficiency of the operation, and the bronchoscope is also easily damaged;

[0006] 2. The short base and large front end of the laryngeal mask make it difficult to place the laryngeal mask in place, and the laryngeal mask often cannot be inserted into the esophageal entrance;

[0007] 3. The insufficient size of the ventilation tube and the connecting part lumen leads to poor ventilation when the bronchoscope is operated. CONTENT OF THE UTILITY MODEL

[0008] The utility model aims at solving one of the above technical problems at least to some extent. Therefore, the purpose of the utility model is to provide a laryngeal mask which is convenient for bronchoscope insertion and advancement and retreat, ensures smooth operation and good ventilation during operation, and is easy to place.

[0009] In order to achieve the above purpose, the embodiment of the utility model provides a novel laryngeal mask facilitating bronchoscope operation, which comprises:

[0010] The mask part comprises a base and a mask bag; the base has a plane, and the plane downward and rearward forms a mask part channel communicated with the ventilation part; the mask bag is formed around the plane, and the mask bag is a gas bag filled with gas, and the front end does not exceed the tip when filled with gas;

[0011] Ventilation part: the cross section is oval, and the ventilation pipe and the inflation pipe are arranged; the upper end of the ventilation part is provided with a connecting part, and the lower end is connected with the cover part; the upper section to the middle section of the ventilation part is straight, and the middle section to the lower section is curved; the ventilation pipe in the length direction of the ventilation part is formed in a gourd-shaped cross section, and the ventilation pipe is connected with the cover part channel; the inflation pipe is parallel to the ventilation pipe; the upper end of the inflation pipe is provided with a mask ventilation valve, and the lower end is connected with the mask;

[0012] Connecting part: including a main pipe and a side pipe, the main pipe and the bottom end of the side pipe are communicated with the ventilation pipe; the top end of the main pipe is provided with a sealable cover, and the sealable cover is further provided with a sealable plug.

[0013] The novel laryngeal mask convenient for bronchoscope operation has at least the following beneficial effects:

[0014] 1. The gourd-shaped cavity is larger than the space for the bronchoscope to pass through, so that the bronchoscope is more smooth when being inserted and operated, and the friction with the pipe wall is reduced.

[0015] 2. The front end of the base of the cover part is not hindered by the extension of the mask, and can more smoothly reach the esophageal entrance.

[0016] In addition, the novel laryngeal mask convenient for bronchoscope operation has the following additional technical features:

[0017] Optionally, the height of the mask gradually increases from the front end to the rear end.

[0018] Optionally, the widest part of the gourd-shaped cross section is located on the minor axis of the oval cross section of the ventilation pipe.

[0019] Optionally, the height of the gourd-shaped cross section is constant, and the width is wider closer to the cover part.

[0020] Optionally, the lower section of the inflation pipe is integrated into the oval cross section of the ventilation pipe, and the upper section has a free section separated from the ventilation pipe.

[0021] Optionally, the sealable cover and the sealable plug are made of elastic material, and the sealable cover is detachably connected with the main pipe. DRAWINGS

[0022] Figure 1 It is a structure front view according to an embodiment of the utility model;

[0023] Figure 2 It is a structure side view according to an embodiment of the utility model;

[0024] Figure 3 It is a structure cross-sectional view according to an embodiment of the utility model;

[0025] Figure 4A cross-sectional view of the connecting portion according to one embodiment of the present application;

[0026] Figure 5 A cross-sectional view of the ventilation portion along a reference plane of a long axis of an elliptical cross-section according to one embodiment of the present application;

[0027] Figure 6 A cross-sectional view of the ventilation portion near the upper end according to one embodiment of the present application;

[0028] Figure 7 A cross-sectional view of the ventilation portion near the lower end according to one embodiment of the present application.

[0029] Label explanation:

[0030] Cover portion 1 Base 11 Cover sac 12 Cover portion passage 13

[0031] Ventilation portion 2 Ventilation tube 21 Gourd-shaped inner cavity 211 Large end 2111 Small end 2112 Inflatable tube 22 Free section 221

[0032] Connecting portion 3 Main tube 31 Side tube 32 Sealing cover 33 Sealing plug 331. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0034] The present application, for bronchoscope intervention diagnosis and treatment of laryngeal mask must have wide and bending angle as small as possible lumen, good sealing after placement, easy to place in place and other characteristics. A new type of laryngeal mask is provided for convenient bronchoscope operation, and the problems existing in the laryngeal mask during the current bronchoscope diagnosis and treatment are improved, including:

[0035] 1. The lower end of the cover portion base extends to the cover portion tip, and the front end of the cover sac is designed to be narrow and flat, and is flush with the lower end of the base, so that the lower end of the laryngeal mask is placed at the esophageal inlet.

[0036] 2. The rear end of the cover sac of the cover portion is designed to be wide and high, so as to ensure good sealing after inflation, and the space inside is deep enough to facilitate bronchoscope operation.

[0037] 3. The laryngeal mask ventilation tube lumen is designed as a transverse gourd shape, and the upper end of the connecting portion has a main and side connecting port, and the lower end of the connecting portion lumen communicates with the entire gourd-shaped lumen of the ventilation tube, which can ensure smooth ventilation during bronchoscope operation.

[0038] 4. Ventilation tube lower section wide part tube cavity front and rear diameter gradually increases, to the place where the cover part is connected, the front and rear diameter is obviously enlarged (standard parameter increases 1cm), which facilitates the operation of bronchoscope, especially ultrasonic bronchoscope.

[0039] 5. Ventilation part appearance design is flat ellipse in horizontal section, which facilitates pipeline distribution and reduces the risk of lateral turning.

[0040] 6. Ventilation part upper section tube wall thickening ensures that bronchoscope is not damaged due to biting, and the middle and lower sections are slightly bent forward to facilitate the placement of the laryngeal mask.

[0041] 7. The main connecting port is equipped with a sealed soft cover, the soft cover has an endoscope insertion hole and a plug in the middle, which ensures that there is no air leakage during bronchoscope operation.

[0042] In order to better understand the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be fully conveyed to those skilled in the art.

[0043] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings and specific embodiments.

[0044] Figures 1 to 7 A new laryngeal mask for facilitating bronchoscope operation according to the embodiments of the present application, comprising:

[0045] Cover part 1: including base 11 and cover bag 12; base 11 has a plane, the plane downward and rearward forms a cover part channel 13 communicating with ventilation part 2, the outlet of cover part channel 13 is tapered, which facilitates the entry of bronchoscope into the glottis; cover bag 12 is formed around the plane, cover bag 12 is a gas-filled airbag, the front end does not exceed the tip of the plane when filled with gas; specifically, base 11 can be a hard structure with smooth surface, made of medical material;

[0046] From the top surface: base 11 has a plane, which can also be flat; from the front: the upper part is wide and the lower part is narrow, the cross section of base 11 is an arch shape with gradually increasing height; from the side: the tip of base 11 cover part 1 is backward, showing an acute triangle with the tip as an acute angle; combining the above characteristics with the smooth structure of base 11; base 11 can be easily inserted into the esophageal inlet.

[0047] Cover bag 12, specifically, the height gradually increases from the front end to the back;

[0048] From the top surface: the cover bag 12 is a ring-shaped air bag;

[0049] From the side: near the tip of the base 11, it is the lowest (standard parameter height 0.8 cm, which can be reduced or increased according to different specifications to achieve full adaptation from children to adult patients, the same below), and the rear end of the cover bag 12 is wide and high (standard parameter height 2.5 cm), which ensures good airtightness and sufficient space inside after inflation, facilitating bronchoscope operation.

[0050] The end surface of the front part of the cover bag 12 is flush with the front part of the tip of the base 11, that is, the cover bag 12 does not protrude forward relative to the base 11. As described above, some existing laryngeal masks have a cover bag 12 that protrudes from the base 11 and completely wraps the base 11. In actual operation, the cover bag 12 interferes with the insertion of the laryngeal mask (the cover bag 12 that is not inflated will slide and resist against soft tissue, forming an obstacle and blocking the line of sight). After using the structure of the present embodiment, the problem of smooth insertion in use can be effectively improved, and the cover bag 12 can still maintain the airtightness of the tracheal entrance.

[0051] The cover bag 12 gradually increases in height and width from front to back, which has the beneficial effect of reducing resistance and facilitating operation when deep into the throat. After the cover part 1 is in place, the cover bag 12 with different front and rear heights inflates and acts as a wedge, expanding the space between the soft tissue and the base 11, providing better space for the subsequent movement of the bronchoscope extending from the base 11 relative to existing laryngeal masks. The existing laryngeal mask is designed to maintain ventilation during anesthesia, so neither the thickness of the ventilation tube nor the structure of the cover bag takes into account the convenience of bronchoscope entry and exit. In actual use, problems such as bronchoscope being stuck in the inner wall of the laryngeal mask ventilation tube occur. The present embodiment can provide better convenience for the movement of the bronchoscope in the laryngeal mask ventilation tube through targeted design, without affecting the ventilation efficiency of the laryngeal mask.

[0052] The ventilation part 2 includes a ventilation tube 21 and an inflation tube 22; the upper end of the ventilation part 2 is provided with a connecting part 3, the upper segment is straight, the middle segment is curved, and the lower end is connected with the cover part 1;

[0053] Some existing laryngeal masks have a ventilation tube 21 that adopts a nearly right-angle bending radius. In actual use, this structure does not conform to the characteristics of human body structure and also limits the subsequent movement of the bronchoscope in it. Therefore, in the present embodiment, the ventilation tube 21 is transitioned with an arc shape from the middle segment to the lower end, and the angle of the arc is 135° or greater.

[0054] The cross section of the ventilation part 2 is oval, the long axis of the oval is the width direction of the ventilation pipe 21, and the inside of the cross section forms a cavity with a gourd-shaped cross section; the inflation pipe 22 is formed on one side of the ventilation pipe 21, the lower end is communicated with the cover capsule 12, and the upper end is provided with a cover capsule 12 ventilation valve; the oval cross section can avoid the ventilation pipe 21 from turning over in the inserted and used state, causing the internal cavity to be twisted and affecting ventilation and operation; the standard parameters of the oval are 1.8 cm in height and 2.5 cm in width.

[0055] In some embodiments, the ventilation pipe 21 is a gourd-shaped internal cavity 211, and some existing laryngeal masks have several independent circular pipe cavities in the internal cavity, which are independently responsible for different functions. This structure can meet the ventilation requirements during anesthesia, but when applied to a bronchoscope, the existing structure has low adaptability as a movement space because the bronchoscope needs to move radially and axially. In order to solve this problem, the utility model provides a gourd-shaped internal cavity 211: from the upper end to the lower section of the ventilation pipe 21, the small end 2112 of the gourd shape is located on the right side of the ventilation pipe 21, and the large end 2111 is located on the left side. The cavity of the large end 2111 of the gourd shape is used for inserting the bronchoscope, and the small end 2112 is used for ventilation. In actual use, the advantage of this scheme is that the gas can pass through the entire gourd shape during ventilation, and the movement of the bronchoscope does not affect the ventilation efficiency. Compared with the existing laryngoscope, when used directly, the bronchoscope may squeeze the adjacent cavity, causing the ventilation volume to decrease. Therefore, the utility model solves a risk factor in the use of the existing scheme.

[0056] In some embodiments, the widest part of the gourd shape is located on the minor axis of the oval cross section of the ventilation pipe 21, that is, the large end 2111 of the gourd shape is located at the center of the ventilation pipe 21.

[0057] In order to better adapt to the operation of the bronchoscope, in some embodiments, the height of the gourd shape remains unchanged, and the width is wider closer to the cover part 1. This structure makes full use of the space of the cross section of the ventilation pipe 21 and better adapts to the bronchoscope. As the bronchoscope extends, the control effect of the movement of the end part decreases, and it is easy to appear that the end part is stuck on the inner wall and has to be pulled out for a certain distance before being inserted again, which will damage the surrounding soft tissue during the operation process.

[0058] In addition, when the existing laryngeal mask is applied, the bronchoscope is not enough after being extended, and is stuck on the base 11. The shape of the gourd-shaped internal cavity 211 is changed, and after being connected with the base 11, a larger outlet is provided, thereby improving the problem that the bronchoscope is too small after being extended and is stuck on the base 11.

[0059] The gourd-shaped internal cavity 211 used in the above scheme has a standard parameter that the diameter of the large end 2111 is about 1.5 cm, and after being enlarged, the diameter of the large end 2111 is increased to about 2.5 cm.

[0060] The design of the inflation tube 22, in some existing laryngeal masks, has a separate pipe directly arranged outside the ventilation tube 21, or is connected with the mask cuff 12 separately, and the embodiment of the utility model provides a scheme, the lower section of the inflation tube 22 is incorporated into the oval cross section of the ventilation tube 21, and the upper section has a free section 221 separated from the ventilation tube 21; that is, the upper section is separated from the ventilation tube 21 to form a separate section with a length of about 8 cm, a valve is arranged at the end for connecting with external ventilation equipment, and the middle and lower sections are incorporated into the cross section of the ventilation tube 21, and the shape of the middle and lower sections of the whole ventilation tube 21 is kept as an oval cross section, thereby reducing the resistance when being inserted.

[0061] The connecting part 3 comprises a main pipe 31 and a side pipe 32, the main pipe 31 and the side pipe 32 are integrated at the bottom end, the bottom end is inserted into the ventilation tube 21, a sealable cover 33 is arranged at the top end, and a sealable plug 331 is further arranged on the sealable cover 33.

[0062] The design of some existing connecting parts 3 adopts a vertical pipe-horizontal branch pipe design, and the embodiment of the utility model is combined with the actual demand of bronchoscope operation, and the connecting mode between the side pipe 32 and the main pipe 31 is designed as being communicated at the bottom end, and the side pipe 32 is separated from the main pipe upwards, so that the bronchoscope operation can be better adapted, and the gas input from the side pipe 32 can obtain more ventilation cross sections and reduce the gas pressure loss caused by the bending;

[0063] Specifically, the main pipe 31 is used for inserting the bronchoscope, the side pipe 32 is used for inputting oxygen, and the main pipe 31 and the side pipe 32 are isolated from each other before entering the ventilation tube 21, so that no matter how the bronchoscope in the main pipe 31 moves radially, the gas inlet cross section of the side pipe 32 is always not affected, and after the oxygen enters the ventilation tube 21, the cross section of the bronchoscope is unchanged, so that the hidden danger that the bronchoscope may block the oxygen inlet is solved.

[0064] In some embodiments, the sealable cover 33 and the sealable plug 331 are made of elastic material, the sealable cover 33 is detachably connected with the main pipe 31, and the sealable cover 33 is used for sealing the main pipe 31 when the bronchoscope is not inserted into the main pipe 31, so as to not affect the ventilation effect of the side pipe 32, and when the sealable plug 331 is opened, the equipment enters from the hole, the elastic material wraps around the equipment, and the sealable plug 331 plays a role of sealing and not leaking.

[0065] The laryngeal mask of the embodiment of the utility model can be divided into four models according to the size and be suitable for the following: No. 1 children, No. 2 adult women, No. 3 adult men and No. 4 extra-large (adults with obvious hypertrophy and swelling of laryngeal soft tissues)

[0066] Laryngeal mask size: the laryngeal mask connecting part is the same for each model; the laryngeal mask cover part and the ventilation part of the No. 1 laryngeal mask are correspondingly reduced; the cover part and the ventilation part of the No. 3 laryngeal mask adopt standard parameters; the cover part of the No. 4 laryngeal mask is increased by 1cm than the No. 3 laryngeal mask, and the ventilation part is the same as the No. 3 laryngeal mask.

[0067] In the description of the utility model, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0068] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "upper" and "upper surface" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0069] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the description of the utility model, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the description.

[0070] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A new laryngeal mask for facilitating bronchoscopy, characterized in that: Comprising Cover part: comprising a base and a cover bag; the base has a plane, the plane downward and rearward forms a cover part channel communicating with the ventilation part; The cover bag is formed around the plane, and the cover bag is a gas-filled air bag, and the front end does not exceed the tip of the plane when filled with gas; Ventilation part: the cross section is oval, and the ventilation part is provided with a ventilation pipe and an inflation pipe; the upper end of the ventilation part is provided with a connecting part, and the lower end is connected with the cover part; the upper segment to the middle segment of the ventilation part is straight, and the middle segment to the lower segment is curved; the ventilation pipe is formed in the ventilation part along the length direction, and the cross section of the ventilation pipe is a gourd shape, and the ventilation pipe is connected with the cover part channel; the inflation pipe is parallel to the ventilation pipe; the upper end of the inflation pipe is provided with a cover bag ventilation valve, and the lower end is communicated with the cover bag; The connecting part comprises a main pipe and a side pipe, the bottom end of the main pipe and the side pipe is communicated with the ventilation pipe; the top end of the main pipe is provided with a sealable cover, and the sealable cover is further provided with a sealable plug.

2. The new laryngeal mask for convenient bronchoscope operation according to claim 1, wherein: The height of the cover bag gradually increases from the front end to the rear end.

3. The new laryngeal mask for convenient bronchoscope operation according to claim 1, wherein: The widest part of the gourd shape is located at the short axis of the oval cross section of the ventilation part.

4. The new laryngeal mask for convenient bronchoscope operation according to any one of claims 1 to 3, wherein: The height of the gourd shape is constant, and the width is wider closer to the cover part.

5. The new laryngeal mask for convenient bronchoscope operation according to claim 1, wherein: The lower segment of the inflation pipe is integrated into the oval cross section of the ventilation part, and the upper segment has a free segment separated from the ventilation pipe.

6. The new laryngeal mask for convenient bronchoscope operation according to claim 1, wherein: The sealable cover and the sealable plug are made of elastic material, and the sealable cover is detachably connected with the main pipe.

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