CN111407994B

CN111407994B - Laryngeal mask with telescopic tracheal catheter

Info

Publication number: CN111407994B
Application number: CN202010245149.1A
Authority: CN
Inventors: 姚优修; 徐懋
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2022-07-29
Anticipated expiration: 2040-03-31
Also published as: CN111407994A

Abstract

The invention discloses a laryngeal mask with a telescopic tracheal catheter, which comprises a cup, the tracheal catheter and a telescopic mechanism, wherein the cup is provided with a cup body; wherein, the contour edge of the cup is provided with an air bag, and a connecting part extends to one side far away from the air bag on the cup; the tracheal catheter is movably arranged in the cup in a penetrating way, and a cuff is arranged on the tracheal catheter; telescopic machanism's one end links to each other with the inner wall of connecting portion, and telescopic machanism's the other end links to each other with endotracheal tube's outer wall, and telescopic machanism is flexible at the arbitrary side of telescopic machanism and the hookup location department both sides of connecting portion. The laryngeal mask with the telescopic tracheal catheter provided by the invention realizes the integration of the laryngeal mask and the tracheal catheter, and can realize the quick switching of the laryngeal mask and the tracheal catheter in the pharyngeal cavity of a patient.

Description

Laryngeal mask with telescopic tracheal catheter

Technical Field

The invention relates to the technical field of medical instruments, in particular to a laryngeal mask with a telescopic tracheal catheter.

Background

The laryngeal mask is a supraglottic ventilation device, can meet the needs of most general anesthesia operations, but is not as exact as an endotracheal tube, for example, when the prone position and the body position change, or when the laryngeal mask is poorly sealed, the laryngeal mask needs to be replaced by the endotracheal tube, but the replacement is more inconvenient. Moreover, the inserted tracheal tube stimulates the trachea and the glottis, which causes severe cough, blood pressure increase, even abdominal pressure increase, wound dehiscence and other diseases during the patient recovery period. In order to overcome the medical difficulties, it is necessary to research a new integrated airway management tool combining a laryngeal mask and an endotracheal tube.

Disclosure of Invention

The invention aims to provide a laryngeal mask with a telescopic tracheal catheter, so that the laryngeal mask and the tracheal catheter can be quickly switched without being taken out of a pharyngeal cavity of a patient.

The invention provides a laryngeal mask with a telescopic tracheal catheter, which comprises:

the bra cup is characterized in that an air bag is arranged at the contour edge of the bra cup, and a connecting part extends to one side far away from the air bag;

the tracheal catheter is movably arranged in the cup in a penetrating way, and is provided with a cuff;

telescopic machanism, telescopic machanism's one end with the inner wall of connecting portion links to each other, telescopic machanism's the other end with endotracheal tube's outer wall links to each other, telescopic machanism is in telescopic machanism with arbitrary side of the hookup location department both sides of connecting portion is flexible.

The laryngeal mask with the telescopic endotracheal tube, as described above, preferably, the outer diameter of the endotracheal tube is smaller than the inner diameter of the connecting portion, and the space between the outer wall of the endotracheal tube and the inner wall of the connecting portion is sealed by the telescopic mechanism.

The laryngeal mask with the telescopic tracheal tube is characterized in that the telescopic mechanism is made of a flexible material such as TPE, PVC, POE or silicone.

The laryngeal mask with the retractable endotracheal tube as described above, wherein preferably, a first magnet is embedded in a side wall of the cup, a second magnet is embedded in a side wall of the endotracheal tube opposite to the side wall of the cup, and magnetic poles of sides of the first magnet and the second magnet which are close to each other are the same.

The laryngeal mask with the telescopic endotracheal tube as described above, wherein preferably, a camera assembly is disposed on the cup, and a projection direction of the camera assembly is consistent with a direction in which the endotracheal tube extends out of the cup or forms a preset included angle.

The laryngeal mask with the retractable tracheal tube as described above, wherein the fully extended length of the retractable mechanism is preferably 9cm to 12 cm.

The laryngeal mask with the telescopic tracheal catheter provided by the invention realizes the integration of the laryngeal mask and the tracheal catheter, and can realize the quick switching of the laryngeal mask and the tracheal catheter in the pharyngeal cavity of a patient. The laryngeal mask provided by the embodiment solves the problem that the laryngeal mask needs to be taken out and then intubated again when the body position of a patient changes or the laryngeal mask is poorly sealed, so that the intubatton times are reduced, and the waste of consumables is reduced; meanwhile, the severe cough and the blood pressure increase caused by the tracheal catheter during the recovery period of the patient are avoided, even the abdominal pressure is high, the wound is cracked and the like. In addition, when in use, the tracheal catheter can be directly placed in a complete forward extension position and inserted through a glottis for prone position operation; this is particularly advantageous when the cuff is released or the endotracheal tube is pulled out of the patient's trachea by the time of the wake-up period to retain the laryngeal mask portion.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a laryngeal mask with a retractable endotracheal tube according to an embodiment of the present invention;

FIG. 2 is a view showing a laryngeal mask with a retractable endotracheal tube in use with a cup according to an embodiment of the present invention;

FIG. 3 is a view of a laryngeal mask with a retractable endotracheal tube in use with the endotracheal tube provided in accordance with an embodiment of the present invention;

figure 4 is a view of a laryngeal mask with a telescoping endotracheal tube according to another embodiment of the present invention in use;

FIG. 5 is a view of a laryngeal mask with a retractable endotracheal tube in accordance with another embodiment of the present invention, shown in use with the endotracheal tube;

figure 6 is a view of a laryngeal mask with a retractable endotracheal tube in accordance with yet another embodiment of the present invention, shown in use;

figure 7 is a view of a laryngeal mask with a retractable endotracheal tube in accordance with yet another embodiment of the present invention, shown in use with an endotracheal tube.

Description of reference numerals:

100-cup 110-balloon 120-connecting part

130-camera assembly 140-first magnet 150-connection

200-endotracheal tube 210-cuff 220-second magnet

300-telescoping mechanism

400-operating rod 410-arc segment 420-gap

430-third magnet 440-holding section 441-fixing part

442-rotating part 443-rotating connecting position

500-arc 600-fourth magnet

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

As used in this disclosure, "first", "second": and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

All terms including technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The drawings in the present disclosure are not drawn to scale, but are merely schematic illustrations of the arrangement of the components.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

As shown in fig. 1 to 3, the embodiment of the present invention provides a laryngeal mask with a retractable endotracheal tube, which includes a cup 100, an endotracheal tube 200, and a retractable mechanism 300; wherein, the contour edge of the cup 100 is provided with an air bag 110, and a connecting part 120 extends to one side far away from the air bag 110 on the cup 100; the tracheal tube 200 is movably arranged in the cup 100 in a penetrating way, and the tracheal tube 200 is provided with a cuff 210; one end of the telescopic mechanism 300 is connected to the inner wall of the connection part 120, the other end of the telescopic mechanism 300 is connected to the outer wall of the endotracheal tube 200, and the telescopic mechanism 300 is extended and contracted at either side of the connection position of the telescopic mechanism 300 and the connection part 120.

In use, when the endotracheal tube 200 is not required, but only a laryngeal mask is required for ventilation, the endotracheal tube 200 can be pulled, the endotracheal tube 200 moved away from the cuff 110, when the cuff 210 on the endotracheal tube 200 moves into the connection part 120, the endotracheal tube 200 stops being pulled, and the cuff 210 is inflated, so that the cuff 210 is tightly pressed against the inner wall of the connection part 120 after being inflated, so that the relative fixation of the cuff 210 and the connection part 120 can be achieved by the pressing force between the cuff 210 and the connection part 120, further, the cup 100 can be fed into the pharyngeal cavity of the patient by manipulating the endotracheal tube 200, and after the cup 100 is fed to a set position in the pharyngeal cavity of the patient, balloon 110 may be inflated to seal the patient's periglottic esophageal and pharyngeal tissues through balloon 110 and to ventilate the patient's trachea through the internal endotracheal tube 200. Meanwhile, since the cuff 210 is pressed against the inner wall of the connection part 120, the endotracheal tube 200 can be supported by the cuff 210, ensuring the stability of the endotracheal tube 200 in the cup 100.

When the body position of the patient changes to cause the sealing failure of the cup 100, the cuff 210 on the tracheal catheter 200 can be deflated, then the tracheal catheter 200 is pushed towards the direction of the air bag 110, the telescopic mechanism 300 is stretched towards the direction of the air bag 110 along with the tracheal catheter 200, when the telescopic mechanism 300 is stretched to the maximum length, one end of the tracheal catheter 200 with the cuff 210 extends out of the cup 100 and is inserted into the trachea of the patient, and at the moment, the cuff 210 can be inflated to complete the tracheal intubation. Wherein, under the state of tracheal intubation, the air bag 110 on the cup 100 can be kept in the inflation state all the time, when the tracheal catheter 200 completes the intubation, the air bag 110 on the cup 100 can be deflated, so as to reduce the oppression caused by the cup 100 abutting against the tissues around the glottis.

In the patient recovery period, the air bag 110 on the cup 100 can be inflated again, and then the tracheal tube 200 is pulled towards the direction of the connecting part 120, so that the tracheal tube 200 is separated from the trachea of the patient, and the patient can be switched to use the cup 100 for ventilation again, thereby avoiding severe cough and blood pressure rise, even abdominal pressure height, wound crack and other diseases caused by the tracheal tube 200 in the patient recovery period.

Wherein, when it is desired to remove the cup 100 from the patient's pharyngeal cavity, the cuff 210 may be inflated to recompress the cuff 210 in the inner wall of the connecting portion 120 and the balloon 110 is deflated so that the cup 100 may be pulled out of the patient's pharyngeal cavity by the compressive force between the cuff 210 and the connecting portion 120. Or directly deflating the balloon 110 without inflating the cuff 210, and then pulling the endotracheal tube 200 directly to take out the cup 100 by the traction of the retractable mechanism 300.

Therefore, compared with the prior art, the laryngeal mask with the telescopic tracheal catheter provided by the embodiment of the invention realizes the integration of the laryngeal mask and the tracheal catheter 200, and can realize the quick switching of the laryngeal mask and the tracheal catheter 200 in the pharyngeal cavity of a patient. The laryngeal mask provided by the embodiment solves the problem that the laryngeal mask needs to be taken out and then intubated again when the body position of a patient changes or the laryngeal mask is poorly sealed, and reduces the intubatton times and consumable waste of the patient; meanwhile, the severe cough and the blood pressure increase caused by the tracheal catheter 200 during the patient recovery period, even the abdominal pressure is high, the wound is cracked and the like are avoided.

In order to provide a sufficient working length for the endotracheal tube 200 during intubation, the fully extended length of the retractable mechanism 300 may be 9cm to 12 cm.

Further, the outer diameter of the endotracheal tube 200 is smaller than the inner diameter of the connection part 120, so that the movement of the endotracheal tube 200 in the connection part 120 can be facilitated, and particularly, the outer diameter of the endotracheal tube 200 is smaller than the inner diameter of the connection part 120 by 3 to 4 mm. In addition, the outer wall of the endotracheal tube 200 and the inner wall of the connection portion 120 are sealed by the retractable mechanism 300; wherein, after the telescopic mechanism 300 is respectively connected with the tracheal catheter 200 and the connecting part 120, the gas can not flow between the telescopic mechanism 300 and the cup 100, and the gas can only flow through the inner part of the tracheal catheter 200, so as to prevent the impurities such as fiber, dust and the like from entering the pharyngeal cavity of the patient through the position outside the tracheal catheter 200.

In order to realize that the retractable mechanism 300 can be pushed and pulled by the endotracheal tube 200 to retract and retract back and forth on both sides of the connecting position of the retractable mechanism 300 and the connecting portion 120, the material of the retractable mechanism 300 may be a flexible material such as TPE, PVC, POE, or silica gel, and in this embodiment, the material is preferably a TPE material. In another embodiment, the retractable mechanism 300 may also be a threaded retractable mechanism with a gradually increasing diameter.

Further, in the process that the endotracheal tube 200 is extended out of the cup 100, in order to prevent the end of the endotracheal tube 200 from interfering with the cup 100 during the movement, a first magnet 140 may be embedded in the sidewall of the cup 100, a second magnet 220 may be embedded in the sidewall of the endotracheal tube 200 opposite to the sidewall of the cup 100, and the magnetic poles of the sides of the first magnet 140 and the second magnet 220 close to each other are the same. Therefore, the first magnet 140 can generate repulsive force to the second magnet 220, so that the end of the endotracheal tube 200 is slightly far away from the side wall of the cup 100, and the endotracheal tube 200 can be ensured to complete intubation smoothly.

Wherein, an insertion hole may be provided in a sidewall of the cup 100, and the first magnet 140 may be fixedly inserted in the insertion hole. Of course, an insertion hole may be provided in the sidewall of the endotracheal tube 200 to facilitate the fixing of the second magnet 220.

Further, in order to facilitate monitoring of a movement path during the tracheal intubation and ensure the accuracy of the tracheal intubation, the cup 100 may be provided with a camera assembly 130, and a projection direction of the camera assembly 130 is consistent with a direction in which the tracheal catheter 200 extends out of the cup 100 or forms a preset included angle. The intubation status of the endotracheal tube 200 can thus be monitored in real time by the camera assembly 130.

It should be noted that after the cup 100 with the first magnet 140 and the second magnet 220 and the endotracheal tube 200 are inserted into the pharyngeal cavity of the patient, the medical staff can use other auxiliary magnets outside the patient to cooperate with the first magnet 140 or the second magnet 220 to adjust the posture of the cup 100 or the endotracheal tube 200 in the pharyngeal cavity of the patient by the mutual attraction between the auxiliary magnets and the first magnet 140 or the second magnet 220. Specifically, the camera assembly 130 may be externally connected to a display screen, so that the medical staff can directly observe the posture of the endotracheal tube 200 or the cup 100 in the pharyngeal cavity of the patient through the display screen, and generate an attractive force between the auxiliary magnet and the first magnet 140 or the second magnet 220 through the skin of the patient, thereby adjusting the posture of the endotracheal tube 200 or the cup 100.

In another embodiment, as shown in fig. 4 and 5, for convenience of operation, the laryngeal mask of the retractable endotracheal tube may further include an operation rod 400, the operation rod 400 is connected to the connection portion 120, a passage is formed in the operation rod 400, and the endotracheal tube 200 is movably inserted through the passage.

When only the laryngeal mask is needed for ventilation, the tracheal catheter 200 is not needed, the operating rod 400 can be held by hand to feed the cup 100 into the pharyngeal cavity of the patient, and meanwhile, the tracheal catheter 200 is pulled towards the direction far away from the cup 100, so that the telescopic mechanism 300 is extended towards the direction far away from the cup 100, and the end part of the tracheal catheter 200 completely enters the channel of the cup 100 or the operating rod 400.

Wherein, an arc part 500 is provided in the cup 100 to guide the endotracheal tube 200 to a preset direction.

Furthermore, the balloon 110 of the prior art laryngeal mask is generally directly connected to the edge of the cup 100, such that the balloon 110 directly abuts against the tissue surrounding the glottis after inflation and the balloon 110 cannot be folded over. In yet another embodiment of the present invention, as shown in fig. 6 and 7, a connecting portion 150 is further provided on the cup 100, wherein the connecting portion 150 may be in a ring shape, an outer edge of the connecting portion 150 is connected to the bladder 110, and an inner edge of the connecting portion 150 is connected to an edge of the cup 100 and the retractable mechanism 300, respectively.

It will be appreciated that the connecting portion 150 forms a cuff structure at the edge of the cup 100 and extends away from the cup 100, and the connecting portion 150 may be bent. Specifically, when the laryngeal mask needs to be used, the endotracheal tube 200 is pulled to retract the end of the endotracheal tube 200 into the cup 100 or the operation rod 400, at this time, the retractable mechanism 300 is pulled toward the inside of the connection portion 120, and since the retractable mechanism 300 is connected to the connection portion 150, the connection portion 150 is pulled by the retractable mechanism 300 to be deployed away from the connection portion 120, so that the air bag 110 at the outer edge of the connection portion 150 can be abutted against the tissue around the glottis, and sealing can be achieved.

When the endotracheal tube 200 is needed to be used without using a laryngeal mask, the endotracheal tube 200 can be pushed to enable the end portion of the endotracheal tube 200 to extend out of the cup 100, at this time, the telescopic mechanism 300 is stretched towards the direction close to the air bag 110, the connecting portion 150 is pulled by the telescopic mechanism 300 and has a straightening trend relative to the outer surface of the telescopic mechanism 300 due to the material characteristics of the connecting portion 150, the straightening trend refers to the fact that the surface of the connecting portion 150 and the outer side surface of the telescopic mechanism 300 are close to a plane, so that the connecting portion 150 can drive the air bag 110 to be bent towards the direction close to the connecting portion 120, namely, the air bag 110 can be separated from the tissues around the glottis, ventilation is achieved only through the intubation effect of the endotracheal tube 200 at this time, and the air bag 110 on the cup 100 cannot cause oppression on the tissues around the glottis.

Wherein, connecting portion 150's material can be the same with telescopic machanism 300's material, all can be one of the flexible material such as TPE, PVC, POE or silica gel, and it is preferred that connecting portion 150's material is the TPE material with telescopic machanism 300's material.

Further, the operating rod 400 may be provided with an arc-shaped segment 410, and a notch 420 may be formed on one side of the arc-shaped segment 410, which is concave or convex. In this embodiment, a notch 420 is preferably formed on the concave side of the arc segment 410.

In the using process of the laryngeal mask, the endotracheal tube 200 inside the operating rod 400 contacts with the inner wall of the arc section 410 to generate large friction, so that the endotracheal tube 200 can be pushed only by large external force, the endotracheal tube 200 is not easy to control, and meanwhile, the wear of the endotracheal tube 200 and the laryngeal mask is accelerated.

Therefore, in this embodiment, the position of the arc-shaped section 410 having the notch 420 provides the endotracheal tube 200 with a large movement space, and meanwhile, the endotracheal tube 200 is not easily contacted with the inner wall of the arc-shaped section 410 to generate friction, thereby ensuring smooth movement of the endotracheal tube 200 and enhancing controllability of the endotracheal tube 200.

Further, a third magnet 430 is embedded in the arc-shaped section 410, a fourth magnet 600 is embedded in the sidewall of the endotracheal tube 200 opposite to the arc-shaped section 410, and the magnetic poles of the adjacent sides of the third magnet 430 and the fourth magnet 600 are the same.

Because the magnetic poles of the sides of the third magnet 430 and the fourth magnet 600, which are close to each other, are the same, according to the principle that like poles of the magnets repel each other, the third magnet 430 can generate a repulsive force to the fourth magnet 600, so that the position of the tracheal catheter 200, which is aligned with the arc-shaped segment 410, slightly deviates to the side where the notch 420 is located, thereby avoiding the contact between the tracheal catheter 200 and the inner wall of the arc-shaped segment 410, and effectively eliminating the negative effects of friction on the movement and the manipulation of the tracheal catheter 200.

Further, in order to facilitate the operation of the laryngeal mask, the operating rod 400 may further be provided with a holding section 440, and the holding section 440 is connected to the arc-shaped section 410. It should be noted that the material of the holding section 440 is harder than the material of the arc-shaped section 410, and when the laryngeal mask is manipulated through the holding section 440, the side of the holding section 440 close to the arc-shaped section 410 can be used as a bite block.

Further, the holding section 440 includes a fixing portion 441 and a rotating portion 442, one side of the rotating portion 442 is rotatably connected to one side of the fixing portion 441, and the other side of the rotating portion 442 is connected to the other side of the fixing portion 441 by a locking mechanism.

When the rotating portion 442 and the fixing portion 441 are fastened by the locking mechanism, the rotating portion 442 and the fixing portion 441 form a cylindrical holding section 440, and an operator can hold the holding section 440 to operate the laryngeal mask, so as to insert the cup 100 into the pharyngeal cavity of the patient, thereby realizing ventilation of the trachea of the patient through the cup 100.

When the mode of trachea cannula is adopted, the posture of the trachea catheter 200 needs to be continuously adjusted to ensure that the trachea cannula is successfully inserted into the trachea, but the operation end of the trachea catheter 200 is restrained by the holding section 440, so that sufficient movable adjustment space cannot be obtained, the precision of the trachea cannula is influenced, and the error rate of the trachea cannula is improved. Therefore, in this embodiment, before the endotracheal intubation mode is adopted, the locking mechanism is released, and the rotating portion 442 is rotated and opened to release the inner space of the holding section 440, so that the moving space of the operating end of the endotracheal tube 200 is increased, and therefore the operating end of the endotracheal tube 200 can be swung in different directions, the adjustment of the insertion end of the endotracheal tube 200 is realized, the accuracy of the endotracheal intubation is ensured, and the success rate of the endotracheal intubation is increased.

Wherein, locking mechanism can include buckle and draw-in groove, and the buckle can set up on rotation portion 442, and the draw-in groove can be seted up on fixed part 441, has realized rotation portion 442 and fixed part 441's fastening connection through the cooperation of buckle and draw-in groove. Of course, the buckle may be disposed on the fixing portion 441, the slot is disposed on the rotating portion 442, and the positions of the buckle and the slot may be designed according to practical situations, which is not limited in this embodiment.

In addition, a slit is formed through the grip 440 at a position where the rotating portion 442 and the fixing portion 441 are coupled by the locking mechanism, and the slit communicates with the above-mentioned gap 420. When the rotating portion 442 is rotated to be opened, the inner space of the holding section 440 is communicated with the notch 420, and an adjustment space of the endotracheal tube 200 is formed.

The rotating connection portion 443 rotatably connected between the rotating portion 442 and the fixing portion 441 may have a thinner wall thickness than the rotating portion 442 or the fixing portion 441, so that the thinner wall thickness is easily bent to realize the rotation of the rotating portion 442 and the fixing portion 441. In addition, a conventional hinge connection or the like may be adopted, and this embodiment is not limited thereto.

The laryngeal mask with the telescopic tracheal catheter provided by the embodiment of the invention realizes the integration of the laryngeal mask and the tracheal catheter, and can realize the quick switching of the laryngeal mask and the tracheal catheter in the pharyngeal cavity of a patient. The laryngeal mask provided by the embodiment solves the problem that the laryngeal mask needs to be taken out and then intubated again when the body position of a patient changes or the laryngeal mask is poorly sealed, so that the intubatton times are reduced, and the waste of consumables is reduced; meanwhile, the severe cough and the blood pressure increase caused by the tracheal catheter during the recovery period of the patient are avoided, even the abdominal pressure is high, the wound is cracked and the like.

Thus far, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A laryngeal mask with a telescoping endotracheal tube, comprising:

the bra cup comprises a cup (100), wherein an air bag (110) is arranged at the contour edge of the cup (100), and a connecting part (120) extends to one side far away from the air bag (110) on the cup (100);

the tracheal catheter (200) is movably arranged in the cup (100) in a penetrating way, and a cuff (210) is arranged on the tracheal catheter (200);

One end of the telescopic mechanism (300) is connected with the inner wall of the connecting part (120), the other end of the telescopic mechanism (300) is connected with the outer wall of the tracheal catheter (200), and the telescopic mechanism (300) stretches out and draws back on any side of two sides of the connecting position of the telescopic mechanism (300) and the connecting part (120);

a first magnet (140) is embedded in the side wall of the cup (100), a second magnet (220) is embedded in the side wall of the tracheal catheter (200) opposite to the side wall of the cup (100), and the magnetic poles of the sides, close to each other, of the first magnet (140) and the second magnet (220) are the same;

still be provided with annular connecting portion (150) on cup (100), wherein, the outer fringe of annular connecting portion (150) with gasbag (110) link to each other, the inner fringe of annular connecting portion (150) respectively with the edge of cup (100) with telescopic machanism (300) link to each other.

2. The laryngeal mask with a retractable endotracheal tube according to claim 1, characterized in that the outer diameter of the endotracheal tube (200) is smaller than the inner diameter of the connection portion (120), and the outer wall of the endotracheal tube (200) and the inner wall of the connection portion (120) are sealed by the retractable mechanism (300).

3. The laryngeal mask with a retractable endotracheal tube according to claim 1, characterized in that the material of the retractable mechanism (300) is a flexible material of TPE, PVC, POE or silicone.

4. The laryngeal mask with the retractable endotracheal tube according to claim 1, characterized in that a camera assembly (130) is provided on the cup (100), the projection direction of the camera assembly (130) being in line with the direction of the endotracheal tube (200) extending out of the cup (100) or being at a preset angle.

5. The laryngeal mask with the retractable endotracheal tube according to claim 1, characterized in that the length of the retractable mechanism (300) after it is fully extended is between 9cm and 12 cm.