Laryngeal mask for bronchoscopy

Abstract

According to the laryngeal mask for bronchoscopy, a bronchoscope intubation tube and a drainage tube intubation tube are arranged, and a drainage tube can be inserted on the premise that it is guaranteed that a bronchoscope can enter the trachea, so that gastric juice of a patient can be drained; in addition, the device is provided with a first bag sleeve, a second bag sleeve and a third bag sleeve, air inflation can be conducted separately according to different parts of the throat of the patient, the device can be fully attached to and seal the esophagus of the patient, and meanwhile a more rapid and stable channel is constructed for entering of a bronchoscope and a drainage tube; in addition, the device is provided with the breathing machine connector and the piston connecting hole in a matched mode, so that connection of a breathing machine does not affect use of the bronchoscope, the piston connecting hole can improve leakproofness between the bronchoscope and a bronchoscope cannula, and therefore air flow escape is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a laryngeal mask for bronchoscopy examination. Background Art

[0002] A laryngeal mask, full name laryngeal mask airway, is an artificial airway that forms an airway seal through an annular inflatable mask placed in the pharynx; with the continuous popularization and development of bronchoscopy technology, the laryngeal mask has gradually shown its advantages in bronchoscopy examination. It can significantly reduce the time for the bronchoscope to enter the glottis and ensure effective oxygen supply during the operation, thereby reducing the operation pause caused by hypoxia. Secondly, the laryngeal mask improves the patient's tolerance and surgical safety, significantly shortening the operation time. In addition, the use of the laryngeal mask reduces the incidence of postoperative pharyngeal discomfort and abnormal voice sensation.

[0003] However, during bronchoscopy examination, since the patient is in a sedated state, the patient's pharyngeal reflex may be inhibited, which may cause the reflux of oral secretions or gastric juice and gastric contents and accidental inhalation into the respiratory tract, resulting in aspiration pneumonia. Once vomiting occurs, the patient needs to be immediately placed in the lateral position, the back is patted, the vomitus in the oropharynx is promptly cleaned, and the vital signs are observed, especially the oxygenation status. If necessary, an endotracheal tube is inserted and endotracheal irrigation and suction are performed under the bronchoscope, which poses a great safety hazard.

[0004] In addition, currently during bronchoscopy examination, using a Y-shaped interface for laryngeal mask ventilation is a commonly used ventilation method. However, when using the Y-shaped interface ventilation method, on the one hand, since the pipeline becomes more tortuous, it is more troublesome for the bronchoscope to enter, prolonging the examination time; on the other hand, due to the diameter difference between the bronchoscope and the Y-shaped interface, when using a ventilator, some airflows will escape from the Y-shaped interface at the end where the bronchoscope is located, affecting the actual oxygen supply effect for the patient.

[0005] To solve these problems, there is now a need for a laryngeal mask specifically designed for bronchoscopy examination. This laryngeal mask can, on the premise of ensuring that the bronchoscope can enter the trachea, be provided with another guiding tube leading to the patient's esophagus at the same time, so as to drain the patient's gastric juice and prevent the occurrence of the above problems. In addition, this laryngeal mask is provided with a special interface for connecting a ventilator to ensure smooth breathing of the patient and enable the bronchoscope to smoothly enter the trachea. In addition, the traditional laryngeal mask only has a single balloon setting. Since the pharyngeal structures of different patients are different, even using laryngeal masks of different models will result in poor sealing of the esophagus during use, and there is a possibility of aspiration for patients who are full and vomiting blood. Therefore, this device is provided with multiple balloons, which can further expand and provide support for the front end and the rear end of the cuff, thereby strengthening the sealing of the esophagus by this device. Summary of the Invention

[0006] To solve the above technical problems, the present invention designs a laryngeal mask for bronchoscopy. By separately providing a bronchoscope cannula and a drainage tube cannula, on the premise that the bronchoscope can enter the trachea, the drainage tube can be inserted simultaneously, so as to drain the gastric juice of the patient; in addition, the device is respectively provided with a first cuff, a second cuff, and a third cuff, which can be inflated separately according to the different parts of the patient's throat, so that the device can fully adhere to and seal the patient's esophagus, and at the same time build a faster and more stable channel for the entry of the bronchoscope and the drainage tube; in addition, the device is cooperatively provided with a ventilator interface and a piston connection hole, so that the connection of the ventilator will not affect the use of the bronchoscope, and the piston connection hole can improve the tightness between the bronchoscope and the bronchoscope cannula, thereby reducing the escape of air flow.

[0007] To achieve the above technical effects, the present invention discloses a laryngeal mask for bronchoscopy, including: a first cuff, a second cuff, a third cuff, a bronchoscope cannula, a drainage tube cannula, a ventilator interface, and a piston connection hole; the second cuff is fixedly arranged at the front end inside the first cuff; the third cuff is fixedly arranged at the rear end inside the first cuff; the bronchoscope cannula is fixedly arranged to penetrate through the inside of the third cuff; the drainage tube cannula is fixedly arranged to penetrate through the inside of the second cuff; the ventilator interface is fixedly arranged at the top of the bronchoscope cannula, and the piston connection hole is fixedly arranged at the top of the ventilator interface;

[0008] Further, the first cuff includes: a laryngeal mask airbag and a first inflation tube; the laryngeal mask airbag is a U-shaped hollow silicone airbag, and the laryngeal mask airbag is provided with a first inflation port; the first inflation port is fixedly connected to the first inflation tube;

[0009] Further, the second cuff includes: a drainage tube airbag and a second inflation tube; the drainage tube airbag is a hollow silicone airbag, and a drainage tube cannula channel is arranged inside; the drainage tube airbag is provided with a second inflation port; the second inflation port is fixedly connected to the second inflation tube;

[0010] Further, the third cuff includes: a bronchoscope airbag and a third inflation tube; the bronchoscope airbag is a hollow silicone airbag, and a bronchoscope cannula channel is arranged inside; the bronchoscope airbag is provided with a third inflation port; the third inflation port is fixedly connected to the third inflation tube;

[0011] Further, the second inflation tube is fixedly connected to the inside of the third cuff;

[0012] Further, the bronchoscope cannula, the drainage tube cannula, the first inflation tube, and the third inflation tube are externally fixedly provided with sleeves for wrapping;

[0013] Further, the ventilator interface has a three-way structure. One end of the ventilator interface is fixedly connected to the bronchoscope intubation tube, and the other end is fixedly connected to the respiratory connection hole; the outer diameter of the middle end of the ventilator interface is 15 mm and is used for connecting an external ventilator.

[0014] Further, a rubber inspection hole is fixedly arranged inside the piston connection hole; a cover is arranged outside the piston connection hole.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present invention discloses a laryngeal mask for bronchoscopy examination. First, by providing independent bronchoscope intubation tube and drainage tube intubation tube, the device can effectively drain the gastric juice of the patient during bronchoscopy examination, avoiding complications that may be caused by gastric juice reflux. Secondly, the three independent cuffs in the device can be inflated separately according to the different parts of the patient's throat, ensuring the fitting and airtightness between the device and the throat, thereby providing a fast and stable channel for the insertion of the bronchoscope and the drainage tube. In addition, the ventilator interface and piston connection hole designed in the device enable the connection of the ventilator not to interfere with the operation of the bronchoscope, and at the same time, the setting of the piston connection hole improves the airtightness between the bronchoscope and the intubation tube, reducing the escape of air flow and ensuring the patency and safety of the airway. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below.

[0018] Figure 1 is a schematic diagram of the overall structure of a laryngeal mask for bronchoscopy examination;

[0019] Figure 2 is another schematic diagram of the overall structure of a laryngeal mask for bronchoscopy examination;

[0020] Figure 3 is a semi-sectional view of a laryngeal mask for bronchoscopy examination;

[0021] Figure 4 is a schematic diagram of the structure of the laryngeal mask airbag of a laryngeal mask for bronchoscopy examination;

[0022] Figure 5 is a schematic diagram of the structure of the bronchoscope airbag of a laryngeal mask for bronchoscopy examination;

[0023] Figure 6 is a schematic diagram of the structure of the drainage tube airbag of a laryngeal mask for bronchoscopy examination;

[0024] Figure 7 is a schematic diagram of the structure of the ventilator interface and piston connection hole of a laryngeal mask for bronchoscopy examination;

[0025] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0026] 1 - First cuff, 2 - Second cuff, 3 - Third cuff, 4 - Bronchoscope cannula, 5 - Drainage tube cannula, 6 - Ventilator interface, 7 - Piston connection hole, 8 - Sleeve, 101 - Laryngeal mask cuff, 102 - First inflation tube, 103 - First inflation port, 201 - Drainage tube cuff, 202 - Second inflation tube, 203 - Drainage tube cannula channel, 301 - Bronchoscope cuff, 302 - Third inflation tube, 303 - Bronchoscope cannula channel, 304 - Third inflation port, 601 - Middle end of the ventilator interface, 701 - Rubber inspection hole, 702 - Cover. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Embodiment 1

[0029] The present invention discloses a laryngeal mask for bronchoscopy examination. Refer to Figures 1 to 7 , including: First cuff 1, Second cuff 2, Third cuff 3, Bronchoscope cannula 4, Drainage tube cannula 5, Ventilator interface 6, Piston connection hole 7; the Second cuff 2 is fixedly arranged at the front end inside the First cuff 1; the Third cuff 3 is fixedly arranged at the rear end inside the First cuff 1; the Bronchoscope cannula 4 is fixedly arranged through the inside of the Third cuff 3; the Drainage tube cannula 5 is fixedly arranged through the inside of the Second cuff 2; the Ventilator interface 6 is fixedly arranged at the top of the Bronchoscope cannula 4, and the Piston connection hole 7 is fixedly arranged at the top of the Ventilator interface 6.

[0030] The First cuff 1 includes: Laryngeal mask cuff 101, First inflation tube 102; the Laryngeal mask cuff 101 is a U-shaped hollow silicone cuff, and the Laryngeal mask cuff 101 is provided with a First inflation port 103; the First inflation port 103 is fixedly connected to the First inflation tube 102.

[0031] The Second cuff 2 includes: Drainage tube cuff 201, Second inflation tube 202; the Drainage tube cuff 201 is a hollow silicone cuff, and a Drainage tube cannula channel 203 is arranged inside; the Drainage tube cuff 201 is provided with a Second inflation port; the Second inflation port is fixedly connected to the Second inflation tube 202;

[0032] The third cuff 3 includes: a bronchoscope balloon 301 and a third inflation tube 302; the bronchoscope balloon 301 is a hollow silicone balloon with a bronchoscope intubation channel 303 provided inside; the bronchoscope balloon 301 is provided with a third inflation port 304; the third inflation port 304 is fixedly connected to the third inflation tube 302.

[0033] The second inflation tube 202 is fixedly connected to the inside of the third cuff 3.

[0034] The bronchoscope intubation tube 4, the drainage tube intubation tube 5, the first inflation tube 102, and the third inflation tube 302 are externally fixedly provided with a sleeve 8 for wrapping.

[0035] The ventilator interface 6 is a three-way structure. One end of the ventilator interface 6 is fixedly connected to the bronchoscope intubation tube 4, and the other end is fixedly connected to the breathing connection hole; the outer diameter of the middle end 601 of the ventilator interface is 15 mm, which is used to connect an external ventilator.

[0036] A rubber inspection hole 701 is fixedly provided inside the piston connection hole 7; a cover 702 is provided outside the piston connection hole 7.

[0037] Embodiment 2

[0038] In this embodiment, the ventilator interface 6 is designed with a three-way structure. Specifically, one end of the ventilator interface 6 is fixedly connected to the top of the bronchoscope intubation tube 4, and the other end is fixedly connected to the piston connection hole 7. Thus, during bronchoscopy, it can stably provide the required respiratory support. In addition, the middle end 601 of the ventilator interface is designed with an interface having an outer diameter of 15 mm. This size is to match the standard connector of the external ventilator, thereby achieving a seamless connection between the ventilator and the laryngeal mask device. It ensures the universality and compatibility of the device, and also ensures that during bronchoscopy, it can provide continuous and stable respiratory support for the patient, optimize the patient's respiratory management, and ensure the smooth progress of the examination process.

[0039] Embodiment 3

[0040] In this embodiment, a rubber inspection hole 701 is fixedly provided inside the piston connection hole 7. The material of the rubber inspection hole 701 has good elasticity and flexibility, which can provide a necessary sealing effect when the bronchoscope is inserted, and at the same time will not cause any damage to the bronchoscope. Its design reduces gas leakage during the insertion and operation of the bronchoscope, thereby maintaining the airtightness of the airway. It ensures the patency and stability of the airway during bronchoscopy. The doctor can easily insert the bronchoscope and perform the examination without worrying about the escape of air flow or the instability of the device. In addition, a cover 702 is provided outside the piston connection hole 7. When bronchoscopy is not performed, the cover 702 can cover the piston connection hole 7 to prevent the overflow of air flow.

[0041] The working principle and usage process of this device are as follows:

[0042] When using this device, first place the patient in the supine position and keep the patient's head in a natural position. The doctor deflates the cuffs of the laryngeal mask: the first cuff 1, the second cuff 2, and the third cuff 3 (the second cuff 2 and the third cuff 3 share the third inflation tube 302 for inflation) appropriately and lubricates the laryngeal mask assembly with the corresponding lubricant to reduce possible injuries when inserting the laryngeal mask; at this time, insert the laryngeal mask into the patient's oral cavity and gradually push it down to the base of the patient's tongue to ensure that the base of the tongue does not block the respiratory tract, then lift the patient's mandible. During the insertion process, the doctor can push the patient's chin with a finger to make the patient's mouth open wider for the insertion of the laryngeal mask. When the laryngeal mask reaches the appropriate position, inflate it appropriately according to the specific situation of the patient's throat through a syringe. The laryngeal mask airbag 101 of the first cuff 1 is inflated to fit the patient's throat to ensure the stable fixation of the device. Then, the doctor inflates the second cuff 2 and the third cuff 3 through the third inflation tube 302 to ensure sufficient support for the bronchoscope intubation 4 and the drainage tube intubation 5.

[0043] After the cuff inflation is completed, the doctor connects an external ventilator to the ventilator interface 6 of the device, and then inserts and fixes the drainage tube through the drainage tube intubation 5 to achieve effective drainage of gastric juice; then inserts the bronchoscope through the piston interface through the bronchoscope intubation 4. Due to the design of the device, the insertion of the bronchoscope and the drainage tube becomes fast and stable, reducing the discomfort of the patient. In addition, the setting of the piston connection hole 7 further enhances the sealing between the bronchoscope and the intubation, reduces the escape of air flow, and ensures the patency and safety of the airway.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described.

Claims

1. A laryngeal mask for bronchoscopy, characterized in that: include: The first cuff, the second cuff, the third cuff, the bronchoscope cannula, the drainage tube cannula, the ventilator interface, and the piston connection hole; the second cuff is fixedly arranged at the front end inside the first cuff; the third cuff is fixedly arranged at the rear end inside the first cuff; the bronchoscope cannula is fixedly penetrated inside the third cuff; the drainage tube cannula is fixedly penetrated inside the second cuff; the ventilator interface is fixedly arranged at the top of the bronchoscope cannula, and the piston connection hole is fixedly arranged at the top of the ventilator interface.

2. A laryngeal mask for bronchoscopy according to claim 1, characterized in that: The first bag includes: a laryngeal mask airbag and a first inflation tube; the laryngeal mask airbag is a U-shaped hollow silicone airbag, and the laryngeal mask airbag is provided with a first inflation port; the first inflation port is fixedly connected to the first inflation tube.

3. A laryngeal mask for bronchoscopy according to claim 1, characterized in that: The second cuff includes: a drainage tube airbag and a second inflation tube; the drainage tube airbag is a hollow silicone airbag with a drainage tube insertion channel arranged inside; the drainage tube airbag is provided with a second inflation port; the second inflation port is fixedly connected to the second inflation tube.

4. A laryngeal mask for bronchoscopy according to claim 1, characterized in that: The third cuff comprises: a bronchoscope airbag and a third inflation tube; the bronchoscope airbag is a hollow silicone airbag with a bronchoscope intubation channel arranged inside; the bronchoscope airbag is provided with a third inflation port; the third inflation port is fixedly connected to the third inflation tube.

5. A laryngeal mask for bronchoscopy according to claim 3, characterized in that: The second inflation tube is fixedly connected to the interior of the third cuff.

6. A laryngeal mask for bronchoscopy according to claim 1, characterized in that: The bronchoscope cannula, the drainage tube cannula, the first inflation tube, and the third inflation tube are fixedly provided with sleeves on the outside for wrapping.

7. A laryngeal mask for bronchoscopy according to claim 1, characterized in that: The ventilator interface is a three-way structure, one end of the ventilator interface is fixedly connected to the bronchoscope cannula, and the other end is fixedly connected to the breathing connection hole; the outer diameter of the middle end of the ventilator interface is 15mm, which is used to connect an external ventilator.

8. A laryngeal mask for bronchoscopy according to claim 1, characterized in that: A rubber inspection hole is fixedly arranged inside the piston connection hole; and a sealing cover is arranged outside the piston connection hole.

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