CN118807057A - A special-shaped tracheal tube - Google Patents

Abstract

The present invention relates to the technical field of medical devices, in particular to a special-shaped tracheal catheter, which comprises a tracheal assembly, including a tooth pad, an oxygen supply layer arranged on the inner wall of the tooth pad, an air bag sleeved on the outer wall of the oxygen supply layer and a catheter movably arranged on the inner wall of the tooth pad; and a fixing assembly, including a connector, a swivel sleeved on the outer wall of the connector and a push post movably arranged on the inner wall of the connector; the present invention fixes the catheter inside the patient's airway through the cooperation of the oxygen supply layer and the air bag, and through the oxygen side hole on the surface of the air bag, it can not only evenly and stably deliver oxygen, but also avoid the situation that the air bag is over-expanded and squeezes the patient's airway. When the connector is connected to an external device, the movement of the push post can be controlled through the external swivel, so that the elastic plate at the bottom of the push post is deformed, so that the elastic plate is close to the inner wall of the device interface, further fixing the connection between the two and improving the air tightness, and preventing leakage at the surface interface connection.

Description

A special-shaped tracheal tube

Technical Field

The invention relates to the technical field of medical instruments, in particular to a special-shaped tracheal tube.

Background Art

In the field of emergency and critical care, oropharyngeal and nasopharyngeal airways are important tools for maintaining airway patency and are widely used in patients with unconsciousness or breathing difficulties. However, traditional airways often shift or fall off during use due to changes in patient position, accumulation of secretions, or improper operation by medical staff, posing safety risks.

A Chinese patent with publication number CN110743071A discloses a tracheal tube, wherein the tip of the tube is designed to be streamlined like a half bullet head and has the ability to deform. When the tube core is installed, the dorsal side of the tube faces forward and the tip of the tube core reaches the rear edge of Murphy's foramen. After the tip of the tube enters the glottis, the tube core is held still and the tube is continuously pushed forward. When the tip of the tube reaches the front wall of the trachea, the tip is easy to bend backward, and the streamlined dorsal tube wall continues to slide into the axial direction of the trachea along the inner wall of the tube. At this time, the tube core is withdrawn and the tube is adjusted to a suitable depth. The tip of the catheter of the patent is always located on the center line of the catheter. When the intubation is guided by a bougie or a video soft mirror, the tip of the catheter is closely attached to the bougie or the mirror body to form a streamlined shape, which is convenient for assisting the tracheal tube to enter the glottis. The tracheal tube head end structure designed by the patent is streamlined with the tip centered and relatively soft, which is conducive to overcoming the shortcomings of conventional tracheal tubes and is convenient for intubation through a laryngeal mask and through the nose, so as to achieve the purpose of improving the success rate of intubation and reducing airway damage.

However, this technical solution still has some problems: the trachea is easy to enter the patient's airway, but after the trachea enters, the fixation of the trachea is not optimized, and the airbag may over-expand and squeeze the patient's airway after inflation. At the other end of the trachea, the connection with other equipment may also become loose due to external factors, such as a loose connection or unstable air pressure in the pipeline.

Summary of the invention

In view of the above problems in the prior art, the present invention is proposed.

In order to solve the above technical problems, the present invention provides the following technical solutions: a special-shaped tracheal tube, comprising a tracheal assembly, including a tooth pad, a fixed head arranged on the outer wall of the tooth pad, and a tube movably arranged on the inner wall of the fixed head;

The fixing assembly arranged on the inner wall of the conduit comprises a connector, a rotating ring sleeved on the outer wall of the connector and a push column movably arranged on the inner wall of the connector, a fixing block is arranged at the end of the push column, a push ring is arranged at one end of the push column away from the fixing block, and a push groove is opened on the outer wall of the push ring, and an elastic plate is fixed on the inner wall of the push groove;

The rotating ring is used to drive the push column to move on the inner wall of the connecting head. The push column moves axially on the inner wall of the connecting head to drive the push ring to squeeze the elastic plate to deform it. The deformed protrusion of the elastic plate abuts against the inner wall of the external device connector.

As a preferred embodiment of the special-shaped endotracheal tube of the present invention, the inner wall of the fixed head is provided with an oxygen supply interlayer and the outer wall of the oxygen supply interlayer is connected with an oxygen supply tube, the end of the oxygen supply tube extends to the outer wall of the fixed head and an oxygen supply connector is provided at the top.

As a preferred embodiment of the special-shaped endotracheal tube of the present invention, an opening is provided at the upper end of the oxygen supply connector, an array of vertical grooves is provided on the inner wall of the opening, a first elastic member is provided on the inner wall of the opening, a baffle is provided on the upper end of the first elastic member, and the baffle abuts against the inner wall of the opening.

As a preferred embodiment of the special-shaped tracheal tube of the present invention, an air bag is arranged on the outer wall of the oxygen supply interlayer and an air blocking block is arranged on the inner wall of the air bag, the air blocking block penetrates the outer wall of the oxygen supply interlayer and a flexible plate is arranged on the upper end surface, and an array of oxygen side holes is opened on the outer wall of the air bag.

As a preferred embodiment of the special-shaped tracheal tube of the present invention, the tube passes through the inner wall of the fixed head and the outer wall of the tube is fixed to the inner wall of the oxygen supply interlayer, and a carbon dioxide collection tube and a drainage tube are also fixed to the inner wall of the tube, and the front ends of the carbon dioxide collection tube and the drainage tube extend to the outer wall of the fixed head.

As a preferred solution of the special-shaped tracheal tube of the present invention, a connecting piece is fixed on the outer wall of the connector, and a placement groove is symmetrically opened on the outer wall of the connector at one end of the connecting piece.

As a preferred solution of the special-shaped tracheal tube of the present invention, wherein: a movable groove is provided on the outer wall of the top of the connector, a fixed groove is provided on the outer wall of the movable groove, a push groove is provided on the outer wall of one end of the connector close to the connecting piece, a circular groove is provided on the inner wall array of the push groove, a movable channel is also provided on the inner wall of the push groove, and two ends of the movable channel are respectively connected to the movable groove and the push groove.

As a preferred solution of the special-shaped tracheal tube of the present invention, the inner wall of the swivel is provided with a bump, the outer wall of the bump is provided with a flat path, the outer wall of one side of the bump is provided with a lifting slope, the top of the bump is provided with a fixing opening, and the outer wall of the other side of the bump is provided with a descending slope.

As a preferred solution of the special-shaped tracheal tube of the present invention, the push column cooperates with the movable channel, the fixing block at the end of the push column extends to the inner wall of the pushing groove, the end face of the fixing block is provided with an inclined surface, the outer wall of the inclined surface is provided with a tapered block, the outer wall of the fixing block is provided with a second elastic member, and the end of the second elastic member extends to the inner wall of the circular groove.

As a preferred solution of the special-shaped tracheal tube of the present invention, the push ring at the other end of the push column extends into the inside of the movable groove, and one end of the elastic plate is fixed to the inner wall of the fixed groove.

Beneficial effects of the present invention: The present invention fixes the catheter inside the patient's airway through the cooperation of the oxygen supply interlayer and the airbag, and through the oxygen side holes on the surface of the airbag, it can not only deliver oxygen evenly and stably, but also avoid the situation where the airbag is over-inflated and squeezes the patient's airway. When the connector is connected to an external device, the movement of the push column can be controlled by an external swivel, so that the elastic plate at the bottom of the push column is deformed, and the elastic plate is close to the inner wall of the device interface, which further fixes the connection between the two and improves the air tightness, avoiding leakage at the interface connection.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

FIG1 is a schematic diagram of the overall structure of a special-shaped endotracheal tube of the present invention;

FIG2 is a side cross-sectional view of the trachea assembly of the present invention;

FIG3 is a side cross-sectional view of the oxygen supply connector of the present invention;

FIG4 is a side cross-sectional view of the airbag of the present invention;

FIG5 is a schematic diagram of the deformation of the gas blocking block in the present invention;

FIG6 is a side cross-sectional view of the fixing assembly of the present invention;

FIG7 is a side cross-sectional view of the swivel in the present invention;

FIG8 is a schematic diagram of the inner wall structure of the rotating ring in the present invention;

FIG9 is an enlarged schematic diagram of the structure at A in FIG8 of the present invention;

FIG10 is a schematic diagram of the structure of the push column in the present invention;

FIG. 11 is a schematic diagram showing the deformation of the elastic plate in the present invention.

Reference numerals: 100, trachea assembly; 101, dental pad; 102, fixing head; 103, oxygen supply interlayer; 1031, oxygen supply tube; 1032, oxygen supply joint; 1033, opening; 1034, vertical groove; 1035, first elastic member; 1036, baffle; 104, air bag; 1041, air blocking block; 1042, flexible plate; 1043, oxygen side hole; 105, catheter; 1051, carbon dioxide collection tube; 1052, drainage tube;

200, fixed component; 201, connector; 2011, connecting piece; 2012, placement groove; 2013, movable groove; 2014, fixed groove; 2015, push groove; 2016, circular groove; 2017, movable channel; 202, swivel; 2021, convex block; 2022, flat road; 2023, lifting slope; 2024, fixed mouth; 2025, descending slope; 203, push column; 2031, fixed block; 2032, inclined surface; 2033, conical block; 2034, second elastic member; 2035, push ring; 2036, push groove; 2037, elastic plate.

DETAILED DESCRIPTION

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

Example 1

1 , 2 , 4 and 6 , which are the first embodiment of the present invention, a special-shaped endotracheal tube is provided.

Specifically, the trachea assembly 100 includes a tooth pad 101, a fixing head 102 disposed on the outer wall of the tooth pad 101, an oxygen supply layer 103 disposed on the inner wall of the fixing head 102, an air bag 104 sleeved on the outer wall of the oxygen supply layer 103, and a catheter 105 movably disposed on the inner wall of the fixing head 102, wherein the air bag 104 is used to be fixed to the inner wall of the patient's airway after being inflated;

The fixing assembly 200 includes a connector 201 , a swivel 202 sleeved on the outer wall of the connector 201 , and a push post 203 movably disposed on the inner wall of the connector 201 . The swivel 202 is used to drive the push post 203 to move on the inner wall of the connector 201 .

Among them, the tooth pad 101 is used to prevent unexpected occlusion of teeth. A through hole is opened in the middle of the fixed head 102 for the passage of the catheter 105 and the oxygen supply interlayer 103. The oxygen supply interlayer 103 is sleeved on the outside of the catheter 105. The top position of the oxygen supply interlayer 103 and the top position of the catheter 105 are both fixed inside the through hole of the fixed head 102. The airbag 104 is fixed on the outside of the oxygen supply interlayer 103, and is located at one end away from the fixed head 102.

The connector 201 is fixed to the inner wall of the catheter 105, and the connector 201 is located on the outside of the fixed head 102, and is used to connect with other equipment to facilitate the subsequent oxygen supply to the inside of the catheter 105. The swivel 202 is sleeved on the outside of the connector 201, and the swivel 202 can rotate on the outer wall of the connector 201. When the swivel 202 rotates, the push pin 203 located on the inner wall of the connector 201 is pushed by the swivel 202 to move on the inner wall of the connector 201.

In summary, when in use, the tooth pad 101 is used to prevent the patient from biting suddenly, which affects the overall use effect of the special-shaped endotracheal tube. The oxygen supply interlayer 103 is attached to the outer wall of the tube 105. The outer wall of the oxygen supply interlayer 103 is made of a flexible film. When there is no oxygen inside, the entire oxygen supply interlayer 103 is flat and attached to the outer wall of the tube 105. The overall tube diameter is relatively slender, which is convenient for the overall insertion into the patient's airway, thereby increasing the patient's comfort. At the same time, the airbag 104 fixed to the outer wall of the oxygen supply interlayer 103 is also made of a flexible material and is connected to the oxygen supply interlayer 103. When the oxygen supply interlayer 103 is inflated, the airbag 104 will also expand together. After the entire tube is filled, it fits against the inner wall of the patient's airway. The tube wall is soft and can deform with the shape of the airway, so it is not easy to crush the airway and also increases the patient's comfort.

Then, the push pin 203 is driven to move on the inner wall of the connector 201 by the rotation of the swivel 202. The movement of the push pin 203 makes the connection between the device interface on the outer wall of the connector 201 and the connector 201 tighter, preventing the device connector from accidentally falling off the connector 201.

Example 2

1 to 5 , a second embodiment of the present invention is shown, which is implemented based on the previous embodiment.

Specifically, the outer wall of the oxygen supply interlayer 103 is connected to an oxygen supply pipe 1031 , the end of the oxygen supply pipe 1031 extends to the outer wall of the fixed head 102 and an oxygen supply connector 1032 is provided at the top.

Among them, the oxygen supply interlayer 103 is made of a thin film with good flexibility and ductility. An oxygen supply tube 1031 is connected to the side outer wall of the oxygen supply interlayer 103. One end of the oxygen supply tube 1031 is connected to the oxygen supply interlayer 103, and the other end passes through the surface of the fixing head 102 and extends to the outside. An oxygen supply connector 1032 is fixed at the port outside the oxygen supply tube 1031. Air is inflated into the oxygen supply tube 1031 through the oxygen supply connector 1032 and finally reaches the inside of the oxygen supply interlayer 103, so that the oxygen supply interlayer 103 begins to fill and expand. After the outer wall of the interlayer is inflated, it fits the shape of the patient's airway, which can not only preliminarily fix the pipeline, but also does not make the patient feel uncomfortable.

Preferably, an opening 1033 is provided at the upper end of the oxygen supply connector 1032 , a vertical groove 1034 is provided in an array on the inner wall of the opening 1033 , a first elastic member 1035 is provided on the inner wall of the opening 1033 , a baffle 1036 is provided on the upper end of the first elastic member 1035 , and the baffle 1036 abuts against the inner wall of the opening 1033 .

Among them, an opening 1033 is opened at the top of the oxygen supply connector 1032. When the oxygen supply connector 1032 is connected to other equipment, external oxygen enters the interior of the oxygen supply connector 1032 through the opening 1033, and further enters the interior of the oxygen supply interlayer 103 through the oxygen supply tube 1031 to inflate the oxygen supply interlayer 103.

A plurality of vertical grooves 1034 are provided in an array inside the opening 1033, and the vertical grooves 1034 are a short distance away from the top of the opening 1033. Inside the opening 1033, the first elastic member 1035 pushes the upper baffle 1036 toward the top of the opening 1033. At this time, the baffle 1036 is located above the vertical grooves 1034. At this time, the interior of the oxygen supply connector 1032 is in a sealed state, and the internal gas cannot be released to the outside through the opening 1033, and the external gas cannot enter the interior of the oxygen supply connector 1032.

An air blocking block 1041 is arranged on the inner wall of the air bag 104 . The air blocking block 1041 penetrates the outer wall of the oxygen supply interlayer 103 and a flexible plate 1042 is arranged on the upper end face. An oxygen side hole 1043 is arranged in an array on the outer wall of the air bag 104 .

Among them, the airbag 104 and the oxygen supply interlayer 103 are made of the same flexible material and have good flexibility and ductility. A plurality of air blocking blocks 1041 are installed in an array inside the airbag 104. The air blocking block 1041 is fixed on the layer of tube wall between the airbag 104 and the oxygen supply interlayer 103. A plurality of flexible plates 1042 are arranged on the surface of the air blocking block 1041. The outer walls on both sides of each flexible plate 1042 are tightly fitted but not fixedly connected together. The outer walls on both sides of each flexible plate 1042 are squeezed and fitted against each other, so that the surface of the air blocking block 1041 is sealed to isolate the air circulation between the oxygen supply interlayer 103 and the airbag 104.

The outer wall array of the airbag 104 is provided with two rows of tiny oxygen side holes 1043. When the airbag 104 is inflated, the whole takes on a trapezoidal shape. The end of the airbag 104 close to the bottom of the oxygen supply interlayer 103 expands less, while the end of the airbag 104 close to the fixing head 102 expands a little more. At this time, the two rows of oxygen side holes 1043 are concentrated on the outside of the airbag 104 at the smaller end. Therefore, after the airbag 104 is inflated, the oxygen side holes 1043 will not fit the inner wall of the patient's airway.

Preferably, the catheter 105 passes through the inner wall of the fixed head 102 and the outer wall of the catheter 105 is fixed to the inner wall of the oxygen supply interlayer 103. The inner wall of the catheter 105 is also fixed with a carbon dioxide collection tube 1051 and a drainage tube 1052, and the front ends of the carbon dioxide collection tube 1051 and the drainage tube 1052 extend to the outer wall of the fixed head 102.

The catheter 105 extends from the through hole in the middle of the fixed head 102 into the patient's airway. The oxygen supply interlayer 103 located outside the catheter 105 and the air bag 104 outside the oxygen supply interlayer 103 enter the patient's airway along with the catheter 105, and then fill and expand. A carbon dioxide collection tube 1051 and a drainage tube 1052 are also fixed inside the catheter 105. The carbon dioxide collection tube 1051 fixed inside the catheter 105 collects gas samples exhaled by the patient, especially the carbon dioxide content therein. By collecting and analyzing the exhaled carbon dioxide gas, the doctor can understand the patient's respiratory function status. , thereby assisting in the diagnosis of respiratory diseases, and during surgery or intensive care, the carbon dioxide collection tube 1051 can be connected to the monitoring equipment to monitor the patient's respiratory waveform, end-tidal carbon dioxide concentration and respiratory rate in real time, providing doctors with timely physiological data support. When necessary, the pus, blood, and liquid accumulated between human tissues or in the body cavity can be guided out of the body through the drainage tube 1052 to prevent postoperative infection and promote wound healing. Through the drainage tube 1052, the doctor can observe the color, quantity and nature of the drainage fluid, whether there is active bleeding, etc., so as to judge the patient's condition and recovery.

In summary, when in use, the catheter 105 enters the patient's airway through the through hole in the middle of the fixed head 102, and the oxygen supply interlayer 103 on the outer wall of the catheter 105 and the airbag 104 fixed on the outside of the oxygen supply interlayer 103 enter the patient's airway together. At this time, the interior of the oxygen supply interlayer 103 is not inflated, and there is no oxygen inside the oxygen supply interlayer 103 and the airbag 104. The overall tube diameter is small, which is easy to operate.

When the catheter 105, together with the oxygen supply interlayer 103 and the airbag 104, enters the patient's airway, oxygen is filled into the interior through the oxygen supply connector 1032. The delivered oxygen impacts the baffle 1036 inside the opening 1033 or the external connection port will contact the baffle 1036, causing it to move downward and squeeze the first elastic member 1035, causing it to deform downward. At this time, as the baffle 1036 moves downward, the vertical groove 1034 located on the inner wall of the opening 1033 is exposed, and the external oxygen enters the oxygen supply tube 1031 below through the vertical groove 1034, and the oxygen enters the oxygen supply interlayer 103 through the oxygen supply tube 1031.

When the oxygen enters the oxygen supply interlayer 103, it gradually fills the oxygen supply interlayer 103, causing the oxygen supply interlayer 103 to slowly expand. Because of the air blocking block 1041 at the bottom of the airbag 104, the oxygen will not enter the airbag 104 at this time, and will only be supplied to the interior of the oxygen supply interlayer 103 first. When the interior of the oxygen supply interlayer 103 is full, the tube wall of the oxygen supply interlayer 103 at this time fits in the patient's airway, and the catheter 105 is initially fixed. Afterwards, as the oxygen continues to be delivered, the interior of the oxygen supply interlayer 103 can no longer accommodate more oxygen. At this time, the excess oxygen begins to impact the flexible plate 1042 on the surface of the air blocking block 1041 through the bottom of the air blocking block 1041. At this time, the flexible plate 1042 begins to expand upward under the air pressure inside the oxygen supply interlayer 103. At this time, oxygen begins to enter the interior of the airbag 104 through the gap after the flexible plate 1042 is expanded, causing the air The bag 104 begins to gradually expand and become larger. As the bag 104 expands, the expanded bag 104 further fixes the catheter 105 in the patient's airway. At the same time, a plurality of oxygen side holes 1043 are opened on the surface of the bag 104. Since the aperture of the oxygen side holes 1043 is small, when the bag 104 is inflated, although a part of the oxygen flows to the outside through the oxygen side holes 1043, the bag 104 will still be expanded and fixed in the patient's airway to further fix the catheter 105. When the external oxygen supply is stopped, the flexible plate 1042 will no longer be impacted by the air pressure inside the oxygen supply interlayer 103, and will return to its original state and close again. At this time, the upper surface of the air blocking block 1041 is sealed again, reducing the oxygen loss inside the oxygen supply interlayer 103, keeping the oxygen supply interlayer 103 filled, and fixing the oxygen supply interlayer 103 in the patient's airway.

Through the oxygen side holes 1043 opened on the surface of the airbag 104, excess oxygen in the airbag 104 can be discharged to the outside, so as to avoid deformation of the airbag 104 caused by excessive oxygen delivery to the inside, excessive expansion and squeezing of the patient's airway, and damage to the patient's airway. At the same time, the oxygen side holes 1043 on the surface of the airbag 104 can also be used as oxygen outlets, and oxygen is continuously supplied to the oxygen supply interlayer 103 through external equipment to keep the oxygen supply interlayer 103 continuously filled. While the catheter 105 is fixed inside the patient's airway, excess oxygen can also be evenly and stably delivered to the inside of the airway through the oxygen side holes 1043.

Furthermore, the carbon dioxide collection tube 1051 inside the catheter 105 can be used as a high-frequency oxygen supply pipeline when necessary to deliver oxygen to the patient's airway.

Example 3

4 and 6 to 11 , a third embodiment of the present invention is shown, which is implemented based on the previous embodiment.

Specifically, a connecting piece 2011 is fixed on the outer wall of the connecting head 201 , and a placement groove 2012 is symmetrically opened on the outer wall of the connecting head 201 located at one end of the connecting piece 2011 .

Among them, the connecting piece 2011 is fixed on the outside of the connecting head 201, a part of the connecting head 201 is fixed on the inner wall of the catheter 105, and the connecting piece 2011 is located on the outer part of the catheter 105. Two placement grooves 2012 are symmetrically opened on the outer wall of the connecting head 201 located on the inner part of the catheter 105. The front ends of the carbon dioxide collection tube 1051 and the drainage tube 1052 inside the catheter 105 extend from the placement groove 2012 to the outside of the catheter 105 and are connected to external equipment.

Preferably, a movable groove 2013 is provided on the outer wall of the top end of the connecting head 201, a fixed groove 2014 is provided on the outer wall of the movable groove 2013, a pushing groove 2015 is provided on the outer wall of the connecting head 201 close to the connecting piece 2011, a circular groove 2016 is provided on the inner wall array of the pushing groove 2015, and a movable channel 2017 is also provided on the inner wall of the pushing groove 2015, and both ends of the movable channel 2017 are respectively connected to the movable groove 2013 and the pushing groove 2015.

Among them, the movable groove 2013 is located outside the end of the connecting head 201 away from the connecting piece 2011, and a circle of fixed grooves 2014 is opened on the inner outer surface of the movable groove 2013. The pushing groove 2015 is the outer circle position of the connecting head 201 on the side close to the connecting piece 2011. A plurality of movable channels 2017 arrays are arranged on the outer surface of the connecting head 201. One end of the movable channel 2017 is connected to the movable groove 2013, and the other end is connected to the pushing groove 2015, forming a movable cavity.

A protrusion 2021 is provided on the inner wall of the swivel 202 , a flat path 2022 is provided on the outer wall of the protrusion 2021 , a lifting slope 2023 is provided on the outer wall on one side of the protrusion 2021 , a fixing opening 2024 is provided on the top of the protrusion 2021 , and a descending slope 2025 is provided on the outer wall on the other side of the protrusion 2021 .

The rotating ring 202 is installed on the outside of the connector 201 and is located outside the push slot 2015. The rotating ring 202 can be rotated outside the push slot 2015, and this action can be completed by manually turning the knob.

A plurality of protrusions 2021 are provided on the inner wall of the rotating ring 202, and a lifting slope 2023 and a descending slope 2025 are respectively provided on both sides of the protrusion 2021. In the middle of two adjacent protrusions 2021, they are connected by a flat road 2022, that is, there is an aisle between the lifting slope 2023 of the first protrusion 2021 and the descending slope 2025 of the next protrusion 2021, so that they are connected to each other to form a whole.

A fixing opening 2024 is provided at the top middle position of each protrusion 2021 .

The push column 203 cooperates with the movable channel 2017, one end of the push column 203 extends to the inner wall of the pushing groove 2015 and a fixed block 2031 is provided at the end, the end face of the fixed block 2031 is provided with a slope 2032, the outer wall of the slope 2032 is provided with a conical block 2033, the outer wall of the fixed block 2031 is provided with a second elastic member 2034, and the end of the second elastic member 2034 extends to the inner wall of the circular groove 2016.

The push column 203 slides in the middle of the movable channel 2017, and the fixed block 2031 at the top point of the push column 203 cooperates with the protrusion 2021 on the inner wall of the rotating ring 202. Each fixed block 2031 corresponds to a protrusion 2021 on the inner wall of the rotating ring 202. The initial position of the fixed block 2031 is located on the flat track 2022. The inclined surface 2032 on the surface of the fixed block 2031 fits with the lifting slope 2023 on the surface of the protrusion 2021. When the rotating ring 202 rotates, the inclined surface 2032 on the surface of the fixed block 2031 slides along the lifting slope 2023 on the surface of the protrusion 2021, and the fixed block 2031 moves from the flat track 2022 slides to the top of the protrusion 2021, at which time the conical block 2033 on the fixing block 2031 is engaged with the inside of the fixing opening 2024 at the top of the protrusion 2021, and when the fixing block 2031 at the top of the push column 203 is driven by the lifting slope 2023 on the surface of the protrusion 2021 and slides toward the top of the protrusion 2021, the second elastic member 2034 on the outer wall of the fixing block 2031 is squeezed and deformed, and the other end of the second elastic member 2034 is inside the circular groove 2016 opened on the surface of the pushing groove 2015, preventing the position of the second elastic member 2034 from shifting when it is squeezed and deformed.

When the conical block 2033 is engaged with the fixing opening 2024 at the top of the protrusion 2021 , the second elastic member 2034 is squeezed and deformed to push the conical block 2033 toward the fixing opening 2024 to fix it.

Preferably, the other end of the push column 203 extends into the movable groove 2013 and a push ring 2035 is fixed to the end. The outer wall of the push ring 2035 is provided with a push groove 2036. The inner wall of the push groove 2036 is fixed with an elastic plate 2037. The other end of the elastic plate 2037 is fixed to the inner wall of the fixed groove 2014.

Among them, the other end of the push column 203 extends to the interior of the movable groove 2013 and is connected to the push ring 2035. The push ring 2035 is sleeved inside the movable groove 2013. A circle of pushing groove 2036 is opened on the inner surface of the push ring 2035. The elastic plate 2037 is fixed in the middle of the pushing groove 2036 and the fixed groove 2014. When the fixed block 2031 at the top of the push column 203 is affected by the swivel 202 and moves inside the connector 201, the push ring 2035 is affected by the push column 203 and moves toward the direction of the fixed groove 2014. At this time, the elastic plate 2037 located in the middle is affected and deformed, and the middle part bulges outward.

In summary, during use, when the connector 201 is connected to an external device, the connector of the external device is sleeved on the outside of the connector 201. At this time, the swivel 202 is rotated, and the protrusion 2021 inside the swivel 202 rotates with the swivel 202. At this time, the fixed block 2031 located inside the push groove 2015 is affected by the movement of the protrusion 2021. The inclined surface 2032 of the fixed block 2031 is close to the lifting slope 2023 outside the protrusion 2021, and moves along the lifting slope 2023 until the conical block 2033 on the fixed block 2031 is engaged into the fixed port 2024 at the top of the protrusion 2021. At this time, the second elastic member 2034 on the outside of the fixed block 2031 pushes the fixed block 2031 to engage with the fixed port 2024 to fix the fixed block 2031.

When the fixed block 2031 slides inwardly under the influence of the swivel ring 202, the push ring 2035 on the other side of the push column 203 moves inside the movable groove 2013 together with the sliding of the push column 203. At this time, the push ring 2035 connected to the bottom of the push column 203 moves toward the direction of the fixed groove 2014. Through the movement of the push ring 2035, the elastic plate 2037 is squeezed to deform it, and the middle part bulges upward. Through the deformed elastic plate 2037, the connector 201 is further tightly connected to the connector of the external device for fixation. At the same time, the deformed elastic plate 2037 is tightly attached to the inner wall of the equipment connector to avoid loosening of the connection due to unstable pressure in the pipeline or mismatch of the equipment pipeline, and can also improve the air tightness of the connection between the two to prevent air leakage during use.

When it is necessary to release the deformation of the elastic plate 2037, it is only necessary to continue to rotate the swivel 202. At this time, the conical block 2033 can move out of the fixed port 2024 through the inclined surface 2032 on the surface of the fixed block 2031. Then the conical block 2033 moves along the descending slope 2025 to the flat path 2022 in the middle of the protrusion 2021. At this time, the push ring 2035 in the movable groove 2013 is reset, and the elastic plate 2037 is restored, losing the fit with the inner wall of the equipment joint.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims (10)

1. A special-shaped endotracheal tube, characterized in that it comprises: The trachea assembly (100) comprises a tooth pad (101), a fixed head (102) arranged on the outer wall of the tooth pad (101), and a conduit (105) movably arranged on the inner wall of the fixed head (102); A fixing assembly (200) disposed on the inner wall of the conduit (105), comprising a connector (201), a swivel (202) sleeved on the outer wall of the connector (201), and a push column (203) movably disposed on the inner wall of the connector (201), wherein a fixing block (2031) is disposed at the end of the push column (203), a push ring (2035) is disposed at one end of the push column (203) away from the fixing block (2031), and a push groove (2036) is formed on the outer wall of the push ring (2035), and an elastic plate (2037) is fixed to the inner wall of the push groove (2036); The rotating ring (202) is used to drive the push column (203) to move on the inner wall of the connecting head (201); the push column (203) moves axially on the inner wall of the connecting head (201) and is used to drive the push ring (2035) to squeeze the elastic plate (2037) to deform it; the deformed protrusion of the elastic plate (2037) abuts against the inner wall of the external device connector. 2. The special-shaped endotracheal tube according to claim 1, characterized in that: an oxygen supply interlayer (103) is provided on the inner wall of the fixing head (102), and an oxygen supply tube (1031) is connected to the outer wall of the oxygen supply interlayer (103), and an end of the oxygen supply tube (1031) extends to the outer wall of the fixing head (102) and an oxygen supply connector (1032) is provided at the top. 3. The special-shaped tracheal tube according to claim 2, characterized in that: an opening (1033) is provided at the upper end of the oxygen supply connector (1032), an array of vertical grooves (1034) are provided on the inner wall of the opening (1033), a first elastic member (1035) is provided on the inner wall of the opening (1033), a baffle (1036) is provided on the upper end of the first elastic member (1035), and the baffle (1036) abuts against the inner wall of the opening (1033). 4. The special-shaped tracheal tube according to claim 3, characterized in that: an air bag (104) is arranged on the outer wall of the oxygen supply interlayer (103) and an air blocking block (1041) is arranged on the inner wall of the air bag (104), the air blocking block (1041) penetrates the outer wall of the oxygen supply interlayer (103) and a flexible plate (1042) is arranged on the upper end surface, and an array of oxygen side holes (1043) are opened on the outer wall of the air bag (104). 5. The special-shaped tracheal tube according to claim 4, characterized in that: the tube (105) penetrates the inner wall of the fixed head (102) and the outer wall of the tube (105) is fixed to the inner wall of the oxygen supply interlayer (103), and a carbon dioxide collection tube (1051) and a drainage tube (1052) are also fixed to the inner wall of the tube (105), and the front ends of the carbon dioxide collection tube (1051) and the drainage tube (1052) extend to the outer wall of the fixed head (102). 6. The special-shaped tracheal tube according to claim 5, characterized in that: a connecting piece (2011) is fixed to the outer wall of the connecting head (201), and a placement groove (2012) is symmetrically opened on the outer wall of one end of the connecting piece (2011) of the connecting head (201). 7. The special-shaped tracheal tube according to claim 6, characterized in that: a movable groove (2013) is provided on the outer wall of the top end of the connector (201), a fixing groove (2014) is provided on the outer wall of the movable groove (2013), a pushing groove (2015) is provided on the outer wall of one end of the connector (201) close to the connecting piece (211), a circular groove (216) is provided in an array on the inner wall of the pushing groove (2015), a movable channel (2017) is also provided on the inner wall of the pushing groove (2015), and two ends of the movable channel (2017) are respectively connected to the movable groove (2013) and the pushing groove (2015). 8. The special-shaped tracheal tube according to claim 7, characterized in that: the inner wall of the swivel (202) is provided with a protrusion (2021), the outer wall of the protrusion (2021) is provided with a flat road (2022), the outer wall of one side of the protrusion (2021) is provided with a lifting slope (2023), the top of the protrusion (2021) is provided with a fixing opening (2024), and the outer wall of the other side of the protrusion (2021) is provided with a descending slope (2025). 9. The special-shaped tracheal tube according to claim 8, characterized in that: the push column (203) cooperates with the movable channel (2017), the fixed block (2031) at the end of the push column (203) extends to the inner wall of the pushing groove (2015), the end surface of the fixed block (2031) is provided with an inclined surface (2032), the outer wall of the inclined surface (2032) is provided with a conical block (2033), the outer wall of the fixed block (2031) is provided with a second elastic member (2034), and the end of the second elastic member (2034) extends to the inner wall of the circular groove (2016). 10. The special-shaped tracheal tube according to claim 9, characterized in that: the push ring (2035) at the other end of the push column (203) extends into the inside of the movable groove (2013), and one end of the elastic plate (2037) is fixed to the inner wall of the fixing groove (2014).