CN217430606U - Laryngeal mask assembly and suction device - Google Patents

Abstract

The application belongs to the technical field of medical supplies, and particularly provides a laryngeal mask assembly which comprises a bougie and a laryngeal mask, wherein the bougie comprises a catheter and a balloon, and the balloon is arranged on the outer wall of one end of the catheter; the laryngeal mask comprises a drainage tube and a laryngeal mask air bag, the drainage tube is sleeved on the catheter along the length direction of the catheter, and the laryngeal mask air bag is connected with one end of the drainage tube; one end of the drainage tube is close to the sacculus. The application also provides a suction device, which comprises a laryngeal mask assembly and a suction apparatus, wherein the suction apparatus is connected with the catheter. The utility model provides a laryngeal mask subassembly, simple structure, convenient operation once blindly send the bougie to put into the esophagus, just can realize guiding laryngeal mask, fixed laryngeal mask, shutoff esophagus, multiple functions such as deep attraction, adopt the sacculus to the esophagus shutoff, improved the precision of laryngeal mask location. The suction device formed by connecting the suction apparatus to the tail part of the catheter sucks out the content in the stomach, thereby reducing the risk of reflux aspiration.

Description

Laryngeal mask assembly and suction device

Technical Field

The application belongs to the technical field of medical supplies, and particularly relates to a laryngeal mask assembly and a suction device.

Background

During routine anesthesia work, the patient must be maintained with adequate ventilation and oxygenation. The proper artificial airway appliance can help doctors manage the airway, maintain the airway smooth and ensure the oxygen supply of the patient. The laryngeal mask is an effective means for establishing a safe airway, and can allow a patient to breathe independently and perform positive pressure ventilation. The laryngeal mask is convenient to use and wide in application. Compared with the endotracheal tube, the laryngeal mask reduces the damage to the glottis and the mucous membrane in the trachea, has less complications such as sore throat after operation, and has unique advantages.

The laryngeal mask is an artificial respiratory tract developed by anesthesia doctors in England in 1983 according to the anatomy of the throat structure of a human, is a special type of ventilation tube, and is a novel ventilation tool which is commonly used in clinic and is arranged between a mask and a trachea cannula. It is placed in the throat cavity, with the esophagus and the throat cavity closed with a balloon, and ventilated through the throat cavity, avoiding tracheal intubation, but more effective than a mask. The device has the advantages of simple and convenient operation, easy mastering, small injury, good tolerance of patients and the like, and is widely applied to general anesthesia, particularly to short and small general anesthesia operation breathing management and emergency airway opening during rescue.

The artificial airway is an air channel established by placing a catheter into the trachea through the upper respiratory tract or directly into the trachea. The artificial airway is an effective connection established between a physiological airway and air or other air sources for ensuring the smoothness of the airway, and provides conditions for effective drainage, smoothness, mechanical ventilation and treatment of lung diseases of the airway.

Positive pressure ventilation refers to ventilation provided by a ventilator at a pressure above atmospheric pressure during mechanical ventilation. Positive pressure ventilation changes the normal physiological condition of the body and therefore vital signs must be monitored for safety when applied.

Most of the existing laryngeal mask placement methods are blind probing methods, which utilize the fingers of a doctor to guide and place the laryngeal mask in a proper position. Or by using a laryngoscope to assist medical staff in inserting the laryngeal mask through a photopic method. The blind detection method (finger guide) is the most traditional and most clinical laryngeal mask placement method and is suitable for various laryngeal masks. The specific operation method comprises the following steps: the operator carries the glove and pushes the head of the patient lightly with the right hand to make the head of the patient slightly lean backwards. An operator uses the left thumb to probe into the oral cavity of a patient and pull the mandible of the patient to widen the oral cavity gap, the right hand holds the laryngeal mask by a pen, in order to facilitate force application, the finger tips of the forefinger and the middle finger can be abutted against the connecting part of the mask body of the laryngeal mask and the vent pipe, the lips of the patient are poked open by the left hand, the laryngeal mask is gently placed into the oral cavity from the center of the mouth or the corner of one side of the mouth by the right hand, the direction of the mask mouth is towards the mandible, the position of the mask body of the laryngeal mask is determined to be in the center of the oral cavity, after the air bag is flat, the laryngeal mask is tightly attached to the hard palate along the midline under the guidance of the forefinger, the soft palate and the rear wall of the pharynx are sequentially placed downwards until the laryngeal mask can not be pushed again, and finally, the air bag is inflated.

However, the prior art has the following defects:

(1) the position of the laryngeal mask is not easy to be accurately positioned, and the laryngeal mask cannot be fixed after being placed, so that the subsequent displacement possibility is high (long operation time, high airway pressure or position change).

(2) The esophagus shutoff is difficult to carry out after putting into the laryngeal mask again, and firstly the position is difficult accurate target in place, secondly put into the back laryngeal mask and receive the moulding pipe of being difficult for sending out through the esophagus drainage tube of the arc of oropharynx portion form influence, and practical meaning is not good enough. The clinical feasibility of placing the laryngeal mask and simultaneously closing the esophagus is not strong. Meanwhile, in order to prevent backflow and aspiration, a stomach tube needs to be additionally arranged for deep aspiration.

Reflux aspiration is a type of clinical manifestation of respiratory symptoms or complications caused by gastric contents flowing back to the oropharynx and then entering the respiratory tract. The reasons for this are: in the perianesthesia period, because the airway is blocked during general anesthesia induction, the patient forcibly inhales to obviously reduce the intrathoracic pressure; after anesthesia and operation operations and application of skeletal muscle relaxant, positive pressure ventilation of the mask leads to stomach expansion and increase of the pressure in the stomach; elevation of progesterone in the blood during pregnancy leading to relaxation of the sphincter; the use of certain drugs that affect sphincter function, such as opioids, etc. Patients with unclear consciousness and complete loss of protective reflex are more likely to develop the disease.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a laryngeal mask subassembly and suction device to solve the technical problem that the laryngeal mask position that exists among the prior art is difficult accurate in place, the esophagus shutoff is comparatively difficult to arouse palirrhea mistake to inhale easily.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a laryngeal mask assembly comprising:

the bougie comprises a catheter and a balloon, and the balloon is arranged on the outer wall of one end of the catheter; and

the laryngeal mask comprises a drainage tube and a laryngeal mask air bag, the drainage tube is sleeved on the catheter along the length direction of the catheter, and the laryngeal mask air bag is connected with one end of the drainage tube; one end of the drainage tube is close to the saccule.

Optionally, the conduit is a hollow tube with elasticity.

Optionally, one end of the catheter close to the balloon is a closed end, and a side hole is formed in the tube wall of the catheter close to one end of the balloon.

Optionally, the bougie further comprises a first inflation tube, one end of the first inflation tube being in communication with the balloon.

Optionally, the maximum outer diameter of the catheter is smaller than the size of the inner hole of the drainage tube, and the laryngeal mask and the bougie can be separated.

Optionally, the laryngeal mask further comprises a three-way joint, the three-way joint comprises a first joint, a second joint and a third joint, and the first joint is connected with one end, far away from the laryngeal mask air bag, of the drainage tube; the second joint is communicated with the first joint and is used for penetrating the bougie; the third joint is communicated with the first joint and is used for connecting an external breather pipe.

Optionally, the laryngeal mask further comprises a second inflation tube, and one end of the second inflation tube is communicated with the laryngeal mask airbag.

Optionally, one end of the catheter close to the balloon is a closed end, the laryngeal mask assembly further comprises a guide wire, the guide wire is arranged in an inner hole of the catheter along the length direction of the catheter, and one end of the guide wire is abutted to the closed end of the catheter.

Optionally, the guidewire is longer than the catheter, which is longer than the drain.

The application also provides a suction device, which comprises a suction apparatus and the laryngeal mask assembly, wherein the suction apparatus is connected with one end, far away from the balloon, of the catheter.

Optionally, a side hole is formed in the tube wall of the catheter close to one end of the balloon.

The application provides a laryngeal mask subassembly's beneficial effect lies in: compared with the prior art, this application laryngeal mask subassembly includes laryngeal mask and bougie, simple structure, and convenient operation once blindly send the bougie to put into the esophagus, just can realize guide laryngeal mask, fixed laryngeal mask, shutoff esophagus, multiple functions such as deep attraction. The balloon is arranged on the bougie, so that the esophagus can be blocked after the balloon is inflated, the drainage tube of the laryngeal mask can be guided to be sleeved on the catheter of the bougie, the laryngeal mask can be stably and effectively placed at the optimal position, the laryngeal mask is not easily affected by the operation time, the head position and the airway pressure, and the positioning accuracy of the laryngeal mask is improved. And the bougie guides the laryngeal mask to be placed into the esophagus without the aid of a laryngoscope, so that the damage to the oropharynx part and the esophagus wall can be reduced, and the use safety is improved.

The application provides a suction device's beneficial effect lies in: compared with the prior art, the suction device of this application through the bougie of taking the sacculus, before putting into the laryngeal mask in the esophagus, through aerifing for the sacculus, realizes the esophagus shutoff, puts into the back at the laryngeal mask, can avoid ventilating the laryngeal mask for a long time and cause gas overflow esophagus, has reduced the risk of backflowing mistake suction. The gas in the sacculus is put away, can send into the stomach with the bougie, need not to put in addition the stomach tube, and the tail end and the aspirator of pipe are connected simultaneously, and the appeal through the providing of aspirator can attract out the content inside the stomach to prevent that the palirrhea mistake from inhaling the emergence.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Figure 1 is a schematic perspective view of a laryngeal mask assembly according to an embodiment of the present application;

figure 2 is a schematic perspective view of a bougie in a laryngeal mask assembly according to an embodiment of the present application;

figure 3 is a schematic perspective view of a laryngeal mask in a laryngeal mask assembly according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1-bougie;

11-a catheter;

12-a balloon;

13-a first inflation tube;

14-side holes;

2-a laryngeal mask;

21-a drainage tube;

22-laryngeal mask balloon;

23-a three-way joint;

24-a second inflation tube.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3 together, the laryngeal mask assembly and the suction device according to the embodiment of the present application will be described. The laryngeal mask assembly comprises a bougie 1 and a laryngeal mask 2; the bougie 1 comprises a catheter 11 and a balloon 12, wherein the balloon 12 is arranged on the outer wall of one end of the catheter 11; the laryngeal mask 2 comprises a drainage tube 21 and a laryngeal mask air bag 22, the drainage tube 21 is sleeved on the catheter 11 along the length direction of the catheter 11, and the laryngeal mask air bag 22 is connected with one end of the drainage tube 21; one end of drainage tube 21 is adjacent to balloon 12.

The application provides a laryngeal mask subassembly compares with prior art, and this application laryngeal mask subassembly includes laryngeal mask 2 and bougie 1, simple structure, and convenient operation once blindly send bougie 1 to put into the esophagus, just can realize guiding multiple functions such as laryngeal mask 2, fixed laryngeal mask 2, shutoff esophagus, deep attraction. By arranging the balloon 12 on the bougie 1, when the balloon 12 is inflated, the esophagus can be blocked, the drainage tube 21 which is favorable for guiding the laryngeal mask 2 to be sleeved on the catheter 11 of the bougie 1 can be conveniently guided, the laryngeal mask 2 can be stably and effectively placed at the optimal position, the laryngeal mask is not easily influenced by the operation time, the head position and the airway pressure, and the positioning accuracy of the laryngeal mask 2 is improved. And through bougie 1 guide laryngeal mask 2 and put into the esophagus, need not be assisted with the aid of the laryngoscope, can reduce the damage to oropharynx portion and esophagus wall, improved the security of using.

In one embodiment of the present application, the conduit 11 is a hollow tube with elasticity. Pipe 11 has elasticity, can make pipe 11 adapt to the crooked environment of esophagus, makes things convenient for pipe 11 to lead into the esophagus, and pipe 11 adopts hollow body, can conveniently insert other appurtenance in pipe 11, for example: a guidewire may be inserted into the catheter 11.

In one embodiment of the present application, referring to fig. 1-3, the bougie 1 further comprises a first inflation tube 13, one end of the first inflation tube 13 being in communication with the balloon 12.

Specifically, the first inflation tube 13 may be a capillary tube, the first inflation tube 13 is attached to the outer wall of the catheter 11, the balloon 12 is a low-pressure high-capacity balloon, and after the balloon 12 is inflated, the volume of the balloon 12 is appropriate, so that the esophagus can be fully blocked, and the esophagus can be prevented from being damaged.

In one embodiment of the present application, referring to FIG. 1, the maximum outer diameter of catheter 11 is smaller than the size of the inner bore of drainage tube 21, and laryngeal mask 2 can be separated from bougie 1. To facilitate removal of the mask 2, the tube 11 is left in the esophagus or the mask 2 is again placed in emergency. A gap exists between the outer wall of the catheter 11 and the inner wall of the drainage tube 21, the non-integrated design of the bougie 1 and the laryngeal mask 2 is realized, the clinical acceptance is high, and the popularization and the use are facilitated.

In one embodiment of the present application, referring to fig. 1 and fig. 3, the laryngeal mask 2 further comprises a three-way joint 23, the three-way joint 23 comprises a first joint, a second joint and a third joint, and the first joint is connected with one end of the drainage tube 21 far away from the laryngeal mask balloon 22; the second joint is communicated with the first joint and is used for penetrating the bougie 1; the third joint is communicated with the first joint and is used for connecting an external breather pipe.

In one embodiment of the present application, referring to figures 1 and 3 together, the laryngeal mask 2 further includes a second inflation tube 24, one end of the second inflation tube 24 being in communication with the laryngeal mask balloon 22.

In one embodiment of the present application, referring to fig. 1 and 2, the end of the catheter 11 near the balloon 12 is a closed end, and the laryngeal mask assembly further includes a guide wire (not shown) disposed in the inner bore of the catheter 11 along the length of the catheter 11, with one end of the guide wire abutting the closed end of the catheter 11.

The seal wire is generally metal material, has certain intensity and certain compliance, and when inserting the seal wire in pipe 11, the one end butt of seal wire in the blind end of pipe 11, promotes the seal wire and just can drive pipe 11 and get into the esophagus, if set up the seal wire and can increase the propulsive force that pipe 11 got into the esophagus, make pipe 11 get into the esophagus more smooth and easy, be difficult to by the bending. And the bougie 1 can be sent into the esophagus by adopting the guide wire through a blind sending method without auxiliary equipment such as a laryngoscope and the like, so that the damage to the esophagus and the oropharynx is obviously reduced.

In one embodiment of the present application, the length of the guidewire is greater than the length of catheter 11, and the length of catheter 11 is greater than the length of drain tube 21. For adult patients, the length of the guidewire is typically 80 cm, the length of catheter 11 is 60-70 cm, and the length of drain tube 21 is only sufficient to allow balloon 12 to be positioned outside of drain tube 21. While for minor patients, the length of the guide wire, catheter 11, and drain tube 21 may be reduced appropriately.

The embodiment also provides a suction device which comprises a suction apparatus and the laryngeal mask assembly, wherein the suction apparatus is connected with one end of the catheter 11 far away from the balloon 12. The aspirator is used for aspirating and removing the contents of hemorrhage, exudate, pus and thoracic organs in the operation, so that the operation is clear, and the pollution chance is reduced. The principle of the suction apparatus is very simple, namely, the negative pressure state of the suction head is manufactured by a certain method, so that substances outside the suction head can be extruded to the suction head by atmospheric pressure, and the suction effect is achieved.

The application provides a suction device compares with prior art, the suction device of this application, through adopting bougie 1 of taking sacculus 12, puts into laryngeal mask 2 in the esophagus before, through aerifing for sacculus 12, realizes the esophagus shutoff, puts into the back at laryngeal mask 2, can avoid ventilating laryngeal mask 2 for a long time and cause gas overflow esophagus, has reduced the risk of resorption of backflowing. The gas in the sacculus 12 is put away, the bougie 1 can be sent into the stomach, no additional stomach tube is needed, meanwhile, the tail end of the catheter 11 is connected with the aspirator, and the content in the stomach can be sucked out through the suction force provided by the aspirator, so that the reflux aspiration is prevented.

In one embodiment of the present application, referring to fig. 1 and 2, a side hole 14 is formed on the wall of the catheter 11 near the end of the balloon 12. By forming the side holes 14 on the tube wall of the catheter 11, the suction device can conveniently suck the contents in the stomach out through the side holes 14 on the catheter 11, specifically, the number of the side holes 14 can be multiple, and the multiple side holes 14 are arranged along the circumferential direction of the tube wall of the catheter 11.

The laryngeal mask assembly and the suction device provided by the embodiment can be applied to various long-term surgical operations requiring ventilation of the laryngeal mask 2, and the specific using method is as follows:

inserting a guide wire into an inner hole of the catheter 11, placing the bougie 1 into the esophagus by means of the guide wire, and injecting gas into the first inflation tube 13 to expand the balloon 12 so as to realize the function of esophagus blockage; then the drainage tube 21 of the laryngeal mask 2 is sleeved on the catheter 11, so that the laryngeal mask 2 is placed in the throat, and the laryngeal mask air bag 22 is properly inflated to seal the laryngeal cavity; the gas in the saccule 12 is discharged to remove the blockage of the esophagus, the catheter 11 can be further sent to the tail part, and the end of the catheter 11 far away from the saccule 12 is connected with a suction apparatus, so that the suction of stomach contents can be realized.

It is worth noting that the bougie 1 can be left for 15-30 minutes in the waking observation period after the laryngeal mask 2 is pulled out, and the bougie 1 can be taken out after the patient is awake completely, so as to reduce the risk of backflow aspiration in the waking period or various special conditions (such as difficult airway, muscle relaxation recovery insufficiency, upper respiratory tract obstruction, airway hyperreactivity and the like) and prepare for the laryngeal mask 2 to be guided to be placed in the emergency ventilation again.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A laryngeal mask assembly, comprising:

the bougie comprises a bougie (1), wherein the bougie (1) comprises a catheter (11) and a balloon (12), and the balloon (12) is arranged on the outer wall of one end of the catheter (11); and

the laryngeal mask (2) comprises a drainage tube (21) and a laryngeal mask air bag (22), the drainage tube (21) is sleeved on the catheter (11) along the length direction of the catheter (11), and the laryngeal mask air bag (22) is connected with one end of the drainage tube (21); one end of the drainage tube (21) is close to the balloon (12).

2. A laryngeal mask assembly according to claim 1, characterised in that the tube (11) is a hollow tube with elastic properties.

3. A laryngeal mask assembly according to claim 1, characterised in that the bougie (1) further comprises a first inflation tube (13), one end of the first inflation tube (13) communicating with the balloon (12).

4. A laryngeal mask assembly according to claim 1, characterised in that the maximum outer diameter of the catheter tube (11) is smaller than the size of the inner bore of the draft tube (21), the laryngeal mask (2) being detachable from the bougie (1).

5. A laryngeal mask assembly according to claim 1, characterised in that the laryngeal mask (2) further comprises a three-way connection (23), which three-way connection (23) comprises a first connection, a second connection and a third connection, which first connection is connected to the end of the drain tube (21) remote from the laryngeal mask balloon (22); the second joint is communicated with the first joint and is used for penetrating the bougie (1); the third joint is communicated with the first joint and is used for connecting an external breather pipe.

6. A laryngeal mask assembly according to any one of claims 1-5, characterised in that the laryngeal mask (2) further comprises a second inflation tube (24), one end of the second inflation tube (24) communicating with the laryngeal mask balloon (22).

7. A laryngeal mask assembly according to claim 2, characterised in that the end of the tube (11) near the balloon (12) is closed, the laryngeal mask assembly further comprising a guide wire, which is arranged in the inner bore of the tube (11) along the length of the tube (11), one end of the guide wire abutting against the closed end of the tube (11).

8. A laryngeal mask assembly according to claim 7, characterised in that the length of the guide wire is greater than the length of the catheter tube (11), the length of the catheter tube (11) being greater than the length of the drain tube (21).

9. Suction device, characterized in that it comprises an aspirator connected to the end of the catheter tube (11) remote from the balloon (12), and a laryngeal mask assembly according to any one of claims 1-8.

10. The suction device as claimed in claim 9, characterized in that a side hole is made in the wall of said catheter (11) near the end of said balloon (12).

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