Laryngeal mask for painless bronchoscopy

Abstract

The utility model provides a painless bronchoscope special laryngeal mask, including ventilation pipe, casing, fixed base, the bottom of ventilation pipe is connected fixed base, casing surrounds setting on fixed base, be provided with ventilation cavity in ventilation pipe, the middle part of fixed base is cavity, ventilation cavity with the cavity of fixed base is linked together, the top of ventilation pipe is connected with joint, the joint with ventilation cavity is linked together, the joint includes insert, intubation joint, ventilation joint, the joint passes through insert and inserts ventilation pipe, intubation joint, ventilation joint fixed above insert and with ventilation pipe inside is linked together, the top of intubation joint is provided with buckle cover, be provided with gas source joint on ventilation joint. Laryngeal mask top is provided with ventilation joint and intubation joint simultaneously, can be inhaled simultaneously through laryngeal mask and insert bronchoscope, effectively prevent bronchoscope and directly enter throat and cause damage to throat.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a laryngeal mask for painless bronchoscopy. Background Technology

[0002] A bronchoscope is a medical instrument used to examine the lobes, segments, and subsegments of the lungs. It is usually inserted through one nostril or mouth using a fiberoptic bronchoscope, passing through the pharynx and glottis to reach the bronchus and further distal parts. It is easy to damage the larynx during use.

[0003] A laryngeal mask airway is a commonly used device in the medical field to establish an artificial airway for patients and to avoid damage to the mucous membranes of the pharynx and trachea. 。 CN215426731U discloses a visual laryngeal mask, including an endotracheal tube and a bag-shaped mask connected to the endotracheal tube via a seat. The endotracheal tube has a built-in ventilation channel and a camera channel. This laryngeal mask can be used to ventilate both lungs of a patient. However, during certain lung surgeries, it is necessary to ventilate one lung of the patient. The usual procedure is to use a double-lumen endotracheal tube. However, during the intubation process, when the tube passes through the larynx, it can cause damage to the larynx. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a painless laryngeal mask airway specifically for bronchoscopy, thereby resolving the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides a laryngeal mask airway specifically for painless bronchoscopy, comprising an airway tube, a cuff, and a fixing base. The bottom of the airway tube is connected to the fixing base, and the cuff is arranged around the fixing base. An airway cavity is provided inside the airway tube, and the middle part of the fixing base is a cavity. The airway cavity is connected to the cavity of the fixing base. A connector is connected to the top of the airway tube, and the connector is connected to the airway cavity. The connector includes an insert, a tube connector, and an air connector. The connector is inserted into the airway tube through the insert. The tube connector and the air connector are fixed above the insert and are connected to the inside of the airway tube. The axis of the tube connector is parallel to the length direction of the airway tube. A cap is provided at the top of the tube connector, and the cap is detachably connected to the tube connector. An air source connector is provided on the air connector, and the air source connector is detachably connected to the air connector.

[0006] The ventilation tube is also equipped with a camera cavity, which is a cavity with an open top and a bottom extending to the bottom of the mounting base. The closed end of the camera cavity is transparent, and the camera is located at the closed end at the bottom of the camera cavity and connected to the data cable entering the camera cavity.

[0007] The angle between the vent connector and the insertion connector is degrees.

[0008] The insert includes an insertion part and a handheld part. The top of the insertion part is connected to the handheld part. The bottom of the insertion part consists of two opposing arc-shaped insert blocks. The insertion part is provided with a tube hole and a camera hole. The tube connector and the vent connector are connected to the venting cavity through the tube hole. The camera hole is connected to the camera cavity. The handheld part is a plate-shaped structure that extends horizontally from the end away from the insertion part.

[0009] The buckle is made of elastic rubber and includes a connector, a connecting cover, and a connecting strap. The connector is connected to the connecting cover via the connecting strap, and the bottom of the connector is fitted onto the top of the insertion tube connector.

[0010] The connector has a fastening part at the top, and a socket is provided inside the fastening part. The socket is connected to the interior of the insertion part. The outer diameter of the top of the fastening part is larger than the outer diameter of the bottom of the fastening part. When the connecting cover is fastened to the fastening part, the inner diameter of the top is larger than the outer diameter of the top of the fastening part. When the connecting cover is fastened to the fastening part, the inner diameter of the bottom is larger than the outer diameter of the bottom of the fastening part, but smaller than the outer diameter of the top of the fastening part.

[0011] The inner wall of the fastening part is provided with a recessed platform, and the connecting cover is provided with a protrusion that fits therewith. The protrusion is provided with a plug rod that can be inserted into the socket.

[0012] The bottom of the gas source connector is sleeved on the top of the ventilation connector. The top of the gas source connector is provided with an oxygen supply interface and a detection interface. The oxygen supply interface and the detection interface are connected to the inside of the ventilation connector. The axis of the detection interface passes through the axis of the ventilation connector. The axis of the oxygen supply interface is perpendicular to the axis of the detection interface. The bottom of the detection interface is connected to a detection tube. The detection tube passes through the ventilation cavity and extends to the bottom of the ventilation cavity.

[0013] The bladder is an inflatable airbag, and an inflation tube is provided at the top of the bladder. The inside of the inflation tube is connected to the inside of the bladder, and a pressure indicator is connected to the other end of the inflation tube. The inflation device is connected to the inside of the inflation tube through the pressure indicator.

[0014] The bottom of the vent pipe is bent at an angle of 80-90 degrees.

[0015] The beneficial effects of the painless laryngeal mask airway for bronchoscopy obtained through the above technical solution are:

[0016] The laryngeal mask airway is equipped with both an airway connector and an intubation connector, allowing the bronchoscope to be inserted through the laryngeal mask airway while ventilation is in progress, effectively preventing the bronchoscope from directly entering the larynx and causing damage.

[0017] The laryngeal mask airway has both a ventilation connector and an intubation connector, which allows the endotracheal tube to be inserted into the required bronchus end while ventilation is being performed, thus completing unilateral lung ventilation and avoiding the damage to the larynx caused by direct intubation with a double-lumen endotracheal tube. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the painless bronchoscope-specific laryngeal mask described in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the vent pipe described in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connector described in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the buckle cover described in this utility model;

[0022] Figure 5 This is a schematic diagram of the gas source connector described in this utility model.

[0023] In the diagram, 1. Ventilation tube; 2. Cuff; 3. Fixing base; 4. Connector; 5. Camera; 6. Data cable; 7. Cover; 8. Gas source connector; 9. Inflation tube; 10. Pressure indicator; 11. Ventilation chamber; 12. Camera chamber; 41. Insert; 411. Insertion part; 411a. Insertion hole; 411b. Camera hole; 412. Handheld part; 42. Insertion connector; 43. Ventilation connector; 71. Connector; 711. Fastening part; 711a. Insertion hole; 711b. Recess; 72. Connecting cover; 72b. Insertion rod; 73. Connecting strap; 81. Oxygen inlet; 82. Detection interface; 82a. Detection tube. Detailed Implementation

[0024] Further embodiments of the present invention will be described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] like Figure 1-3As shown, a painless laryngeal mask airway for bronchoscopy includes an airway tube 1, a cuff 2, and a fixation base 3. The bottom of the airway tube 1 is connected to the fixation base 3, and the cuff 2 is arranged around the fixation base 3. An airway cavity 11 is provided inside the airway tube 1. The middle part of the fixation base 3 is a cavity, and the airway cavity 11 communicates with the cavity of the fixation base 3. A connector 4 is connected to the top of the airway tube 1, and the connector 4 communicates with the airway cavity 1. The connector 4 includes an insert 41, a tube connector 42, and an air connector 43. The connector 4 is inserted into the airway tube 1 through the insert 41. The tube connector 42 and the air connector 43 are fixed above the insert 41 and communicate with the inside of the airway tube 1. The axis of the tube connector 42 is aligned with the... The ventilation tube 1 is parallel in length and can be inserted into the intubation connector 42 inside the laryngeal mask as needed, which can effectively avoid damage to the larynx caused by direct intubation. The intubation connector 42 is provided with a cap 7 at the top, which is detachably connected to the intubation connector 42. The cap 7 can be used as needed. If intubation is required, the cap 7 can be removed to facilitate the insertion of the bronchoscope and endotracheal tube. If only the laryngeal mask is needed to establish an airway and intubation is not required through the laryngeal mask, the cap 7 can be directly fastened to the connecting cover 72 to prevent the gas inside the ventilation chamber 11 from flowing out through the intubation connector 42. The ventilation connector 43 is provided with a gas source connector 8, which is detachably connected to the ventilation connector 43.

[0026] The ventilation tube is also equipped with a camera cavity 12, which is a cavity with an open top and extends to the bottom of the fixing base 1. The closed end of the camera cavity 12 is transparent. The camera 5 is located at the closed end of the bottom of the camera cavity 12 and is connected to the data cable 6 that enters the camera cavity 12. The camera 5 can be used to observe the insertion of the laryngeal mask and the situation when the bronchoscope or endotracheal tube is inserted after the laryngeal mask is inserted, so as to avoid damage to the larynx and trachea caused by incorrect insertion position.

[0027] The angle between the vent connector 43 and the insertion connector 42 is 45 degrees.

[0028] The insert 41 includes an insertion part 411 and a handheld part 412. The top of the insertion part 411 is connected to the handheld part 412. The bottom of the insertion part 412 consists of two opposing arc-shaped insert blocks. The insertion part 411 is provided with an intubation hole 411a and a camera hole 411b. The intubation connector 42 and the ventilation connector 43 are connected to the ventilation chamber 1 through the intubation hole 411a. The camera hole 411b is connected to the camera chamber 12. The handheld part 411 is a plate-shaped structure that extends horizontally from the end away from the insertion part. During endotracheal tube intubation, the handheld part 411 can be grasped by hand to fix the ventilation tube 1 and prevent the ventilation tube 1 from shifting and causing damage to the larynx during insertion.

[0029] like Figure 4 As shown, the buckle 7 is made of elastic rubber. The buckle 7 includes a connector 71, a connecting cover 72, and a connecting strap 73. The connector 71 is connected to the connecting cover 72 through the connecting strap 73. The bottom of the connector 71 is fitted onto the top of the insertion tube connector 42.

[0030] The connector 71 has a fastening part 711 at its top, and a socket 711a is provided inside the fastening part 711. The socket 711a is connected to the inside of the insertion part 411. The outer diameter of the top of the fastening part 711 is larger than the outer diameter of the bottom of the fastening part 711. When the connecting cover 72 is fastened to the fastening part 711, the inner diameter of the top is larger than the outer diameter of the top of the fastening part 711. When the connecting cover 72 is fastened to the fastening part 711, the inner diameter of the bottom is larger than the outer diameter of the bottom of the fastening part 711, but smaller than the outer diameter of the top of the fastening part 711. Since the cover is elastic, when the connecting cover 72 is fastened to the fastening part 711, the bottom of the connecting cover 72 passes through the top of the fastening part 711 first. By pressing, the bottom of the connecting cover 72 can be pressed into the bottom of the fastening part 711. Without external force, the connecting cover 72 will not pop open and can be fastened to the outside of the fastening part 711.

[0031] The inner wall of the fastening part 711 is provided with a recess 711b, and the connecting cover 72 is provided with a protrusion 72a that fits therewith. The protrusion 72a is provided with a insertion rod 72b that can be inserted into the insertion hole 711a. Since the fastening cover is elastic, the outer diameter of the insertion rod 72b can be slightly larger than the diameter of the insertion hole 711a. When the insertion rod 72b is inserted, it can be pressed into the insertion hole 711a due to the elasticity of the insertion hole 711a, thus maintaining the sealing of the connecting cover 72.

[0032] like Figure 5As shown, the bottom of the gas source connector 8 is fitted onto the top of the ventilation connector 43. The top of the gas source connector 8 is provided with an oxygen supply interface 81 and a detection interface 82. The oxygen supply interface 81 and the detection interface 82 are connected internally to the ventilation connector 43. The axis of the detection interface 82 passes through the axis of the ventilation connector 43, and the axis of the oxygen supply interface 81 is perpendicular to the axis of the detection interface 82. A detection tube 82a is connected to the bottom of the detection interface 82, and the detection tube 82a passes through the ventilation chamber 11 and extends to the bottom of the ventilation chamber 11. The oxygen supply interface 81 is used to connect oxygen, and the detection interface 81 is used to connect a carbon dioxide content detector, which can effectively detect patient indicators and adjust the oxygen supply. Alternatively, the gas source connector 8 can be detached and directly connected to a ventilator.

[0033] The sleeve 2 is an inflatable airbag, and an inflation tube 9 is provided at the top of the sleeve 2. The inside of the inflation tube 9 is connected to the inside of the sleeve 2. The other end of the inflation tube 9 is connected to a pressure indicator 10. The inflation device is connected to the inside of the inflation tube 9 through the pressure indicator 10.

[0034] The bottom of the vent pipe 1 is provided with a bend, and the angle of the bend at the bottom of the vent pipe 1 is 80-90 degrees.

[0035] When a bronchoscope needs to be inserted, the cuff 2 below the laryngeal mask is first inserted into the patient's larynx. The inflation device inflates the cuff 2 through the inflation tube 9 and then fits it against the glottic opening. At this time, the oxygen supply device is connected to the ventilation connector 43 and delivers oxygen into the trachea. The bronchoscope is inserted through the intubation connector 42 and enters the ventilation chamber, and continues to be inserted downwards to the site to be examined.

[0036] When an endotracheal tube needs to be inserted, the cuff 2 below the laryngeal mask is first inserted into the patient's larynx. The inflation device inflates the cuff 2 through the inflation tube 9 and then fits it against the glottic opening. The endotracheal tube is then inserted through the intubation connector 42 and enters the ventilation chamber. It is then inserted further down into the bronchus where lung collapse is required. The inflation mask below the endotracheal tube is inflated to fit against the bronchial wall, blocking the connection between the bronchus and the trachea. The top of the endotracheal tube is also sealed to prevent the interior from communicating with the outside air. At this time, the oxygen supply device is connected to the ventilation connector 43, which can only connect the bronchus on the side where the endotracheal tube is not inserted, thus enabling one-lung ventilation.

[0037] When only a laryngeal mask airway is needed to establish an airway, first insert the cuff 2 below the laryngeal mask into the patient's larynx. The inflation device inflates the cuff 2 through the inflation tube 9 and then fits it against the glottic opening. The cap 7 is directly fastened onto the intubation connector 42 to seal the top of the intubation connector 42. Connect the oxygen supply device to the ventilation connector 43 to achieve normal two-lung ventilation.

[0038] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A laryngeal mask airway for painless bronchoscopy, comprising an airway (1), a cuff (2), and a fixing seat (3), wherein the bottom of the airway (1) is connected to the fixing seat (3), the cuff (2) is arranged around the fixing seat (3), the airway (1) is provided with an airway cavity (11) and a camera cavity (12), the fixing seat (3) is hollow in the middle, the airway cavity (11) is connected to the hollow of the fixing seat (3), the top of the airway (1) is connected to a connector (4), the connector (4) is connected to the airway cavity (11), and the connector (4) includes an insertion device. The device comprises an insert (41), a cannula connector (42), and a ventilation connector (43). The connector (4) is inserted into the ventilation tube (1) through the insert (41). The cannula connector (42) and the ventilation connector (43) are fixed above the insert (41) and communicate with the inside of the ventilation tube (1). The axis of the cannula connector (42) is parallel to the length direction of the ventilation tube (1). A cap (7) is provided on the top of the cannula connector (42). The cap (7) is detachably connected to the cannula connector (42). A bronchoscope or endotracheal tube is inserted into the cannula connector (42). The ventilation connector (43) is provided with an air source connector (8), which is detachably connected to the ventilation connector (43). The ventilation pipe is also provided with a camera cavity (12), which is a cavity with an open top. The bottom of the camera cavity (12) extends to the bottom of the fixed base (3), and the closed end of the camera cavity (12) is transparent. The camera (5) is located at the closed end of the bottom of the camera cavity (12) and is connected to the data line (6) that enters the camera cavity (12). The insert (41) includes an insertion part (411) and a hand. The holding part (412) has the top of the insertion part (411) connected to the handheld part (412), the bottom of the insertion part (411) has two opposing arc-shaped inserts, the insertion part (411) is provided with a tube hole (411a) and a camera hole (411b), the tube connector (42) and the ventilation connector (43) are connected to the ventilation cavity (11) through the tube hole (411a), the camera hole (411b) is connected to the camera cavity (12), and the handheld part (412) is a plate-shaped structure that extends horizontally from the end away from the insertion part.

2. The laryngeal mask airway for painless bronchoscopy according to claim 1, characterized in that, The angle between the vent connector (43) and the cannula connector (42) is 45 degrees.

3. The laryngeal mask airway for painless bronchoscopy according to claim 1, characterized in that, The buckle (7) is made of elastic rubber. The buckle (7) includes a connector (71), a connecting cover (72), and a connecting strap (73). The connector (71) is connected to the connecting cover (72) through the connecting strap (73). The bottom of the connector (71) is fitted onto the top of the insertion tube connector (42).

4. The laryngeal mask airway for painless bronchoscopy according to claim 3, characterized in that, The connector (71) has a fastening part (711) at the top, and a socket (711a) is provided inside the fastening part (711). The socket (711a) is connected to the inside of the insertion part (411). The outer diameter of the top of the fastening part (711) is larger than the outer diameter of the bottom of the fastening part (711). When the connecting cover (72) is fastened to the fastening part (711), the inner diameter of the top is larger than the outer diameter of the top of the fastening part (711). When the connecting cover (72) is fastened to the fastening part (711), the inner diameter of the bottom is larger than the outer diameter of the bottom of the fastening part (711) and smaller than the outer diameter of the top of the fastening part (711).

5. The laryngeal mask airway for painless bronchoscopy according to claim 4, characterized in that, The inner wall of the fastening part (711) is provided with a recess (711b), and the connecting cover (72) is provided with a protrusion (72a) that fits therewith. The protrusion (72a) is provided with a plug rod (72b) that can be inserted into the socket (711a).

6. The laryngeal mask airway for painless bronchoscopy according to claim 1, characterized in that, The bottom of the gas source connector (8) is fitted onto the top of the ventilation connector (43). The top of the gas source connector (8) is provided with an oxygen inlet (81) and a detection interface (82). The oxygen inlet (81) and the detection interface (82) are connected to the inside of the ventilation connector (43). The axis of the detection interface (82) passes through the axis of the ventilation connector (43). The axis of the oxygen inlet (81) is perpendicular to the axis of the detection interface (82). The bottom of the detection interface (82) is connected to a detection tube (82a). The detection tube (82a) passes through the ventilation chamber (11) and extends to the bottom of the ventilation chamber (11).

7. The laryngeal mask airway for painless bronchoscopy according to claim 1, characterized in that, The bladder (2) is an inflatable airbag. An inflation tube (9) is provided at the top of the bladder (2). The inside of the inflation tube (9) is connected to the inside of the bladder (2). The other end of the inflation tube (9) is connected to a pressure indicator (10). The inflation device is connected to the inside of the inflation tube (9) through the pressure indicator (10).

8. The laryngeal mask airway for painless bronchoscopy according to claim 1, characterized in that, The bottom of the ventilation pipe (1) is provided with a bend, and the angle of the bend at the bottom of the ventilation pipe (1) is 80-90 degrees.

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