CN113226420B

CN113226420B - Respiratory nasal obstruction, nasal obstruction fitting and respiratory system

Info

Publication number: CN113226420B
Application number: CN201980083045.0A
Authority: CN
Inventors: 蔡琨
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2024-02-20
Anticipated expiration: 2039-01-22
Also published as: CN113226420A; WO2020150901A1

Abstract

A respiratory nasal obstruction, a nasal obstruction accessory and a respiratory system, wherein the respiratory nasal obstruction comprises a respirator connecting piece (1), a first nasal obstruction tube (3) and a second nasal obstruction tube (4); the breathing machine connecting piece (1) is provided with an air inlet channel (101), a first air outlet channel (103) and a second air outlet channel (104), the air inlet channel (101) is communicated with the first air outlet channel (103) and the second air outlet channel (104), and the air inlet channel (101) is used for being communicated with a breathing machine; the first nasal obstruction tube (3) is communicated with the first air outlet channel (103), and the second nasal obstruction tube (4) is communicated with the second air outlet channel (104); the first nasal obstruction tube (3) and/or the second nasal obstruction tube (4) can move, so that the interval distance between the first nasal obstruction tube (3) and the second nasal obstruction tube (4) can be adjusted. The first nasal obstruction tube (3) and/or the second nasal obstruction tube (4) can move relatively, so that the interval distance between the first nasal obstruction tube (3) and the second nasal obstruction tube (4) can be adjusted, the use of patients with different nostril intervals can be met, and the comfort level of the patients is improved.

Description

Respiratory nasal obstruction, nasal obstruction fitting and respiratory system

Technical Field

The application relates to the technical field of medical equipment, in particular to a respiratory nasal obstruction, a nasal obstruction fitting and a respiratory system.

Background

When a patient suffers from a disease such as respiratory distress or respiratory failure, respiratory support is often required. The means of respiratory support include non-invasive ventilation and invasive ventilation. In order to minimize complications of invasive mechanical ventilation while effectively treating respiratory diseases, clinicians tend to prefer non-invasive ventilation to be applied, and decide whether to administer invasive mechanical ventilation based on the non-invasive ventilation support effect.

Because the nasal cavity dimensions of the patient vary widely, including the nostril aperture and the nostril spacing. Whether the size of the nasal obstruction is proper relates to the comfort of the patient and the air tightness of ventilation. At the same time, the treatment period of the breathing machine is longer, possibly up to several weeks to several months. The improper size of the nasal obstruction can cause facial skin crush injury and nasal septum injury of a patient, so for the treatment of long-term use of the breathing machine, medical staff can be suggested clinically, the contact between the patient and the nasal obstruction is loosened periodically, the comfort level is improved, and the injury is reduced. In addition, for the nasal obstruction, a manufacturer provides nasal obstruction of different types in a matching way through proper material selection and material hardness adjustment, so that medical staff can select the size of the nasal obstruction relatively proper.

How the same respiratory nasal obstruction is adapted to different nostril spacing of a patient, the existing product has no good method, and the method is a main reason for causing the nasal septum crush injury of the patient.

Disclosure of Invention

In order to solve the technical problems, the respiratory nasal obstruction, nasal obstruction fittings and respiratory system are provided, and the interval distance between the first nasal obstruction tube and the second nasal obstruction tube is adjustable, so that the nasal obstruction fitting can be suitable for patients with different nostril intervals.

In a first aspect, embodiments of the present application provide a respiratory nasal obstruction, including a ventilator connection, a first nasal obstruction tube, and a second nasal obstruction tube; the breathing machine connecting piece is provided with an air inlet channel, a first air outlet channel and a second air outlet channel, the air inlet channel is communicated with the first air outlet channel and the second air outlet channel, and the air inlet channel is used for being communicated with a breathing machine; the first nasal obstruction tube is communicated with the first air outlet channel, and the second nasal obstruction tube is communicated with the second air outlet channel; the first nasal obstruction tube and/or the second nasal obstruction tube can move, so that the interval distance between the first nasal obstruction tube and the second nasal obstruction tube can be adjusted.

The respiratory nasal obstruction comprises a first adjusting piece, wherein the first adjusting piece is used for moving the first nasal obstruction tube and/or the second nasal obstruction tube so as to adjust the interval distance between the first nasal obstruction tube and the second nasal obstruction tube.

The ventilator connecting piece comprises a cavity, one side of the cavity is a top plate, the first air outlet channel and the second air outlet channel are arranged on the top plate, and the air inlet channel, the first air outlet channel and the second air outlet channel are communicated with the cavity; the first adjusting piece drives the first nasal obstruction tube and/or the second nasal obstruction tube to move relative to the top plate.

The first adjusting piece is any one or a combination of a plurality of connecting rods, gears, racks, cams, turbines and worms.

The side, opposite to the top plate, of the cavity is a bottom plate, and the surface, connecting the top plate and the side plate, of the cavity is a side plate; the top plate or the side plate is connected with an extension plate, and the extension plate protrudes relative to the surface of the top plate, which is opposite to the bottom plate.

The respiratory nasal plug further comprises an outer edge plate and a cover plate, wherein the outer edge plate is connected to one side of the side plate, which is opposite to the cavity, or the end part of the top plate, the extending direction of the outer edge plate is parallel to the extending direction of the top plate, and the extending plate is connected to the outer edge plate; the cover plate is connected to one end of the extension plate, which is far away from the top plate.

The first adjusting piece is movably connected to the top plate or the extension plate and connected to the first nasal obstruction tube so as to drive the first nasal obstruction tube to move.

The first adjusting piece is movably connected to the outer edge plate or the cover plate and connected to the first nasal obstruction tube so as to drive the first nasal obstruction tube to move.

The extension plate is provided with a first connecting hole, the first adjusting piece comprises an adjusting rod and a linkage block connected with the adjusting rod, the adjusting rod is arranged in the first connecting hole in a penetrating mode, the first nasal obstruction tube is connected with a first adjusting block matched with the linkage block, and the adjusting rod drives the first adjusting block to move relative to the second nasal obstruction tube through the linkage block.

Wherein the extension of the adjusting rod is intersected with the axes of the first nasal obstruction tube and the second nasal obstruction tube.

The cover plate of the respiratory nasal plug is provided with a first through hole and a second through hole, the first nasal plug tube extends out through the first through hole, the second nasal plug tube extends out through the second through hole, and the diameter of the first through hole is not smaller than the limiting distance of movement of the first nasal plug tube.

The first adjusting block is tightly attached to the cover plate so as to limit the first nasal obstruction tube to move along the axial direction of the first nasal obstruction tube.

The respiratory nasal obstruction further comprises a spacing mark for marking the relative distance between the first nasal obstruction tube and the second nasal obstruction tube.

The respiratory nasal obstruction further comprises a graduated scale for indicating the relative distance between the first nasal obstruction tube and the second nasal obstruction tube.

The first nasal obstruction tube and the second nasal obstruction tube respectively comprise a bottom tube, a middle tube and a top tube which are connected in sequence, the bottom tube is communicated with the first air outlet channel, the diameter of the periphery of the middle tube gradually decreases from one end connected with the bottom tube to one end connected with the top tube, and the diameter of the periphery of the top tube gradually increases from one end connected with the middle tube to one end far away from the middle tube.

The first nasal obstruction tube and the second nasal obstruction tube are respectively arranged in a close fit with the top plate, the size of the first air outlet channel is smaller than the inner diameter of the bottom tube, and the projections of the first nasal obstruction tube and the second nasal obstruction tube on the top plate always cover the first air outlet channel at any moving position of the first nasal obstruction tube and/or the second nasal obstruction tube.

The end, connected with the top plate, of the bottom pipe is further provided with a rim platform, the rim platform protrudes relative to the outer peripheral surface of the bottom pipe, and the rim platform is used for limiting the displacement of the first nasal obstruction pipe in the axial direction of the first nasal obstruction pipe.

The top plate is provided with a first air outlet pipe, the first air outlet pipe encloses the first air outlet channel, the first nasal obstruction pipe is connected with the first air outlet pipe, the first nasal obstruction pipe is of a bendable structure, and the first adjusting piece moves to drive the first nasal obstruction pipe to be bent, so that the interval distance between the first nasal obstruction pipe and the second nasal obstruction pipe is adjusted.

The respiratory nasal obstruction is also provided with a position limiting structure for limiting the movement range of the first nasal obstruction tube.

The respiratory nasal obstruction is also provided with a position locking structure for fixing the first nasal obstruction tube at any position.

The respiratory nasal obstruction further comprises a second adjusting piece, wherein the second adjusting piece is used for moving the second nasal obstruction tube so as to be matched with the first adjusting piece to adjust the interval distance between the first nasal obstruction tube and the second nasal obstruction tube.

In a second aspect, embodiments of the present application provide a nasal prong fitting comprising a first adjustment member, a first nasal prong tube, and a second nasal prong tube; the first nasal obstruction tube and the second nasal obstruction tube are arranged side by side, and the first adjusting piece is connected with the first nasal obstruction tube and/or the second nasal obstruction tube; the first adjusting piece is used for adjusting the interval distance between the first nasal obstruction tube and the second nasal obstruction tube.

Wherein the nasal prong fitting further comprises an extension plate for connection to a ventilator connection.

Wherein, the nasal prong fitting further includes an outer rim plate, the extension plate is connected to the outer rim plate, the outer rim plate is configured to be connected to the ventilator connection.

The nose plug accessory further comprises a cover plate, the cover plate is connected to the extension plate, a first through hole and a second through hole are formed in the cover plate, the first nose plug is sleeved in the first through hole, the second nose plug is sleeved in the second through hole, and the diameter of the first through hole is not smaller than the limit distance of movement of the first nose plug pipe.

The first adjusting piece is movably connected to the extending plate and connected to the first nasal obstruction tube so as to drive the first nasal obstruction tube to move.

The extension plate is provided with a first connecting hole, the first adjusting piece comprises an adjusting rod and a linkage block connected with the adjusting rod, the adjusting rod is arranged in the first connecting hole in a penetrating mode, the first nasal obstruction tube is connected with the first adjusting block, and the adjusting rod is adjusted, so that the linkage block drives the first adjusting block to move relative to the second nasal obstruction tube.

The extension plate is provided with a first connecting hole, the first adjusting piece comprises an adjusting rod and a linkage block connected with the adjusting rod, the adjusting rod is arranged in the first connecting hole in a penetrating mode, the first nasal obstruction tube is connected with a first adjusting block, the second nasal obstruction tube is connected with a second adjusting block, and the adjusting rod is adjusted, so that the linkage block drives the first adjusting block and the second adjusting block to move relatively.

The nasal obstruction fitting further comprises a spacing mark for marking the relative distance between the first nasal obstruction tube and the second nasal obstruction tube.

The nasal obstruction fitting further comprises a graduated scale for indicating the relative distance between the first nasal obstruction tube and the second nasal obstruction tube.

In a third aspect, the present application provides a respiratory system comprising a ventilator in communication with an air intake passage of a ventilator connection of the respiratory nasal obstruction and any of the various embodiments of the first aspect.

In a fourth aspect, the present application provides a respiratory system comprising a ventilator, a ventilator connector, and a nasal prong fitting according to any of the various embodiments of the second aspect, the nasal prong fitting being mounted to the ventilator connector, the ventilator connector being connected to the ventilator.

According to the nasal obstruction tube and/or the nasal obstruction tube, the first nasal obstruction tube and/or the second nasal obstruction tube can move relatively, so that the interval distance between the first nasal obstruction tube and the second nasal obstruction tube is adjustable, the use of patients with different nostril intervals can be met, the ventilation air tightness and the comfort level of the patients are improved, and especially for neonatal patients, the damage caused by improper nasal obstruction size, such as nasal septum damage, facial skin crush injury and the like can be effectively reduced.

Drawings

Fig. 1 is a schematic perspective view of a respiratory nasal obstruction of an embodiment.

Fig. 2 is a schematic top view of a respiratory nasal obstruction of an embodiment.

Fig. 3 is a schematic cross-sectional view of the respiratory nasal obstruction of one embodiment of fig. 2 taken along the direction A-A.

Fig. 4 is a schematic perspective view of a first adjusting block according to an embodiment.

Fig. 5 is a schematic perspective view of another view of the first adjustment block of one embodiment.

Fig. 6 is a schematic cross-sectional view of the respiratory nasal obstruction of the alternative embodiment of fig. 2 taken along the direction A-A.

Fig. 7 is a schematic perspective view of a first nasal obstruction tube according to one embodiment.

Fig. 8 is a schematic elevational view of the first nasal prong of an embodiment.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Referring to fig. 1 to 3, an embodiment of the present application provides a respiratory nasal obstruction, including a respiratory machine connecting piece 1, a first nasal obstruction tube 3 and a second nasal obstruction tube 4. The ventilator connection 1 is provided with an inlet channel 101, a first outlet channel 103 and a second outlet channel 104. The inlet channel 101 communicates with a first outlet channel 103 and a second outlet channel 104, the inlet channel 101 being adapted to communicate with a ventilator (not shown). The first nasal obstruction tube 3 is communicated with the first air outlet channel 103, and the second nasal obstruction tube 4 is communicated with the second air outlet channel 104. The first nasal prong 3 and/or the second nasal prong 4 may be movable such that the separation distance of the first nasal prong 3 and the second nasal prong 4 may be adjustable.

The first nasal obstruction tube 3 and/or the second nasal obstruction tube 4 can move relatively, so that the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4 can be adjusted, the use of patients with different nostril intervals can be met, and the comfort level of the patients is improved.

In this embodiment, the first nasal prongs 3 and/or the second nasal prongs 4 may be moved using a suitable tool such that the separation distance of the first nasal prongs 3 and the second nasal prongs 4 may be adjusted. Suitable means may be forceps, swabs, etc., or may be finger-poked.

In one embodiment, the respiratory nasal obstruction comprises a first adjusting piece 7, wherein the first adjusting piece 7 is used for moving the first nasal obstruction tube 3 and/or the second nasal obstruction tube 4 so as to adjust the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4.

In this embodiment, the first adjusting member 7 may be connected to the first nasal prong 3 or the second nasal prong 4, and individually move one nasal prong. And the device can also be arranged on the breathing machine connecting piece 1 and positioned between the first nasal obstruction tube 3 and the second nasal obstruction tube 4, and can move the first nasal obstruction tube 3 and the second nasal obstruction tube 4 at the same time.

The respirator connecting piece 1 is of a hollow structure and is communicated with the outside through an air inlet channel 101, a first air outlet channel 103 and a second air outlet channel 104. The air inlet channel 101 may be provided at one end of the ventilator connection piece 1, and the first air outlet channel 103 and the second air outlet channel 104 are preferably provided at the other end opposite to the air inlet channel 101. In other words, the first gas outlet channel 103 and the second gas outlet channel 104 are preferably in the same extending direction as the gas inlet channel 101, so that the gas entering from the gas inlet channel 101 can smoothly flow to the first gas outlet channel 103 and the second gas outlet channel 104, and the obstruction of the gas flow is reduced.

Specifically, the ventilator connection 1 includes an air inlet pipe 11, and opposite bottom and top plates 12 and 16, and a side plate 13 connected between the bottom and top plates 12 and 16, the bottom, top and side plates 12 and 16 and 13 enclosing a chamber 102. The intake pipe 11 is connected to the bottom plate 12, and an intake passage 101 surrounded by the intake pipe 11 communicates with the chamber 102. A first gas outlet passage 103 and a second gas outlet passage 104 are provided in the top plate 16 in communication with the chamber 102.

Preferably, the width (or length) dimension of the chamber 102 is greater than the width (or diameter) dimension of the inlet channel 101, and the gas entering the inlet channel 101 may be redistributed uniformly within the chamber 102 such that the gas flow out through the first outlet channel 103 and the second outlet channel 104 is substantially the same. Of course, the width (or length) of the chamber 102 may be the same as the width (or diameter) of the intake passage 101, as long as the gas can flow therethrough.

In other embodiments, the inlet channel 101, the first outlet channel 103, and the second outlet channel 104 may be disposed at other positions. For example, the air inlet channel 101 is provided on the side plate 13, and the first air outlet channel 103 and the second air outlet channel 104 are provided on the top plate 16; or the inlet channel 101, the first outlet channel 103, and the second outlet channel 104 are all provided on the top plate 16, etc.

In this embodiment, the first air outlet channel 103 and the second air outlet channel 104 are through holes formed in the top plate 16, the surface of the top plate 16 facing away from the bottom plate 12 is a plane, and the first nasal obstruction tube 3 and/or the second nasal obstruction tube 4 are movable on the plane of the top plate 16. The first air outlet channel 103 and the second air outlet channel 104 are spaced apart by a predetermined distance. Taking the example that the first air outlet channel 103 and the second air outlet channel 104 are circular through holes on the top plate 16, the preset distance is the distance between the centers of the two circles, the range is preferably 5-20mm, and different preset distances can be made into different models. According to the patients of different ages, different models are selected, for example, infants can select 5-10mm models, minors can select 10-15mm models, adults can select 10-20mm models, and the like, and the application range is wide.

The surface of the side plate 13 facing away from the chamber 102 is connected with an outer edge plate 14, the outer edge plate 14 is connected with an extension plate 15, and the extension plate 15 protrudes relative to the surface of the top plate 16 facing away from the bottom plate 12. The outer rim plate 14 may be flush with the top plate 16, i.e., the plane of extension of the outer rim plate 14 is parallel to the plane of extension of the top plate 16, and the upper surface of the outer rim plate 14 has a common surface with the surface of the top plate 16 facing away from the bottom plate 12. The end of the extension plate 15 remote from the top plate 16 is also connected with a cover plate 2.

In other embodiments, the outer edge plate 14 may be omitted, and the extension plate 15 may be directly connected to the side plate 13 or the top plate 16, where the extension plate 15 protrudes opposite the surface of the top plate 16 facing away from the bottom plate 12.

In one embodiment, the first adjusting member 7 is movably connected to the top plate 16 or the extension plate 15 and is connected to the first nasal prongs 3 to move the first nasal prongs 3.

In another embodiment, the first adjusting member 7 is movably connected to the outer edge plate 14 or the cover plate 2 and connected to the first nasal obstruction tube 3 to move the first nasal obstruction tube 3.

The first adjusting piece 7 can be directly connected with the first nasal obstruction tube 3, and can also be connected with the first nasal obstruction tube 3 through a transmission structure, wherein the transmission structure can be any one or a combination of a plurality of connecting rods, gears, racks, cams, turbines and worms. Alternatively, the first adjusting member 7 may be any one or a combination of a plurality of links, gears, racks, cams, worm gears, and worms.

In one embodiment, the extension plate 15 is provided with a first connecting hole, the first adjusting member 7 is connected to and matched with the first connecting hole, and the first adjusting member 7 can linearly reciprocate relative to the extension plate 15 in a connecting direction from the first air outlet channel 103 to the second air outlet channel 104. The first nasal prongs 3 and the second nasal prongs 4 are connected to the surface of the top plate 16 facing away from the bottom plate 12, and the first nasal prongs 3 are movable on the surface of the top plate 16 facing away from the bottom plate 12. The first adjusting piece 7 is connected to the first nasal obstruction tube 3, and the first adjusting piece 7 can move relative to the extension plate 15 to drive the first nasal obstruction tube 3 to move relative to the top plate 16, so as to adjust the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4.

In this embodiment, the first connecting hole is a threaded hole, the first adjusting member 7 is provided with a threaded structure corresponding to the threaded hole, and the first adjusting member 7 rotates, and the threaded structure is matched with the threaded hole, so that the first adjusting member 7 moves relative to the extension plate 15.

In another embodiment, the first connecting hole is a light hole, and the first adjusting member 7 can slide along a straight line relative to the first connecting hole, so that the first nasal obstruction tube 3 can be moved relatively by pushing and pulling the first adjusting member 7.

The first adjusting member 7 may include an operating handle 71 and an adjusting rod 72 connected in sequence, the operating handle 71 being fixedly connected to one end of the adjusting rod 72, and threads being provided on an outer circumferential surface of the adjusting rod 72 for connection engagement with the first connection hole such that the adjusting rod 72 moves relative to the extension plate 15 when rotated. The other end of the adjusting lever 72 opposite to the operation handle 71 is for connection to the first nasal obstruction tube 3. The operation lever 71 is an alternative arrangement, and if the operation lever 71 is not provided, the first regulating member 7 is moved by regulating the regulating lever 72.

In other embodiments, other transmission engagement patterns, such as shaft hole engagement, rack and pinion engagement, worm and gear engagement, cam and link engagement, etc., may be provided between the first adjustment member 7 and the extension plate 15. The first adjusting piece 7 can only slide relatively to the extension plate 15, so that the first adjusting piece 7 can drive the first nasal obstruction tube 3 to move relatively to the second nasal obstruction tube 4.

In one embodiment, one end of the adjusting rod 72 is further connected with a linkage block 74 matched with the first adjusting block 5, and the first nasal obstruction tube 3 is connected with the first adjusting block 5. The operation handle 71 or the adjusting rod 72 is rotated or pushed to drive the linkage block 74 to move relative to the extension plate 15, and the linkage block 74 drives the first adjusting block 5 to move, so as to drive the first nasal obstruction tube 3 to move. Thus, adjusting the first adjusting member 7 can cause the first nasal obstruction tube 3 to move relative to one another.

In another embodiment, which is substantially the same as the previous embodiment, except that the first nasal prong 3 is connected to the first adjusting block 5, while the second nasal prong 4 is connected to the second adjusting block 6, the adjusting lever 72 is adjusted, so that the linkage block 74 drives the first adjusting block 5 and the second adjusting block 6 to move relatively. Adjusting the first adjusting piece 7 can enable the first nasal obstruction tube 3 and the second nasal obstruction tube 4 to move simultaneously, and the first nasal obstruction tube and the second nasal obstruction tube move relatively, so that the interval distance between the first nasal obstruction tube and the second nasal obstruction tube is adjusted.

In one embodiment, the first adjusting block 5 includes a main body plate 51, a first limiting block 52 and a second limiting block 53, a limiting hole 502 is formed in the main body plate 51, the first limiting block 52 and the second limiting block 53 are disposed on the same side of the limiting hole 502 on the main body plate 51, the second limiting block 53 is disposed on one side, away from the limiting hole 502, of the first limiting block 52, the first limiting block 52 and the second limiting block 53 are disposed at intervals to form a limiting groove 504, and a groove 503 is formed in the second limiting block 53. The linkage block 74 is clamped in the limiting groove 504, preferably is tightly attached to the first limiting block 52 and the second limiting block 53, and the adjusting rod 72 is accommodated in the groove 503. The limiting hole 502 is used for being sleeved on the periphery of the first nasal obstruction tube 3, and the linkage blocks 74 are all accommodated in the space of the limiting groove 504 in the rotating process. When the operation handle 71 rotates to drive the adjusting rod 72 to move in a telescopic manner, the linkage block 74 rotates and moves along with the adjusting rod 72, and the linkage block 74 applies a pushing force to the first limiting block 52 or a pulling force to the second limiting block 53, so as to drive the first adjusting block 5 to move along with the adjusting rod 72 and further drive the first nasal obstruction tube 3 to move.

In a preferred embodiment, the adjusting rod 72 is further provided with a circumferential connecting groove 701, and the part provided with the connecting groove 702 forms an extension rod 73, and the extension rod 73 is fixedly connected with the linkage block 74. When the linkage block 74 is clamped in the limiting groove 504, the bottom wall of the groove 503 on the second limiting block 53 is connected with the extension rod 73. In other words, the groove 503 is opened to a position having a certain height from the main body plate 51, the bottom wall of the groove 503 of the second stopper 53 protrudes with respect to the main body plate 51, and a protrusion 531 is formed, and the protrusion 531 is adapted to extend into the connection groove 702 and connect with the extension rod 73.

In a preferred embodiment, the main body plate 51 is fixedly connected with a reinforcing ring 54, and the reinforcing ring 54 is disposed along the periphery of the limiting hole 502, so that a space formed by enclosing the reinforcing ring 54 is the limiting hole 502, and the reinforcing ring 54 is used for increasing the contact area between the first adjusting block 5 and the first nasal obstruction tube 3, and enhancing the connection stability.

In a preferred embodiment, the main body plate 51 is in a rectangular plate shape, the first limiting block 52 and the second limiting block 53 are in a plate shape extending linearly, the second limiting block 53 is arranged at one side edge of the main body plate 51, and the extending direction of the first limiting block 53 is the same as the extending direction of the second limiting block 52, so that the width of the limiting groove 504 is always consistent. The reinforcing ring 54 has a circular ring shape, the reinforcing ring 54 is disposed on the same side surface of the body plate 51 opposite to the first stopper 52 and the second stopper 53, an outer circumferential surface of the reinforcing ring 54 may be connected to the first stopper 52, and a height of the reinforcing ring 54 in a direction perpendicular to the body plate 51 may be the same as that of the first stopper 52. The central line of the groove 503 on the second limiting block 53 intersects with the axis of the limiting hole 502, so that when the linkage block 74 is arranged in the limiting groove 504, the axis of the adjusting rod 72 extending through the limiting hole 502 intersects with the axis of the first nasal obstruction tube 3, and stability of the first nasal obstruction tube 3 during movement is maintained. Further, the extension of the adjusting rod 72 is intersected with the axes of the first nasal obstruction tube 3 and the second nasal obstruction tube 4, and the three can be in the same plane, so that when the adjusting rod 72 moves in a telescopic way, the first nasal obstruction tube 3 is always close to or far away from the second nasal obstruction tube 4, and the structure is simple.

The adjusting rod 72, the extension rod 73, and the linkage block 74 may all be cylindrical in shape, and the diameter of the linkage block 74 may be the same as the diameter of the adjusting rod 72. In order to facilitate the manufacture of the connecting groove 701, a complete cylindrical rod member may be used to form the connecting groove 701 along the circumferential direction, so as to obtain the adjusting rod 72, the extending rod 73 and the linkage block 74. The operation handle 71 may be cylindrical, and may be provided with a pattern on the outer periphery to enhance friction force, thereby facilitating operation.

Further, the respiratory nasal obstruction may further include a spacing mark that marks the relative distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4. The interval marks may include a first scale mark 501 and a second scale mark 601.

In one embodiment, the first adjusting block 5 is provided with a first scale mark 501, the second adjusting block 6 is provided with a second scale mark 601, and the relative distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4 can be known by measuring the distance between the first scale mark 501 and the second scale mark 601.

Preferably, the surface of the main body plate 51 facing away from the first limiting block 52 may be further provided with a first scale mark 501, and the first scale mark 501 may be an elongated groove and may be painted for marking. The second scale mark 601 is similar to the first scale mark 501 and is referred to. The first scale mark 501 extends through the axis of the limit hole 502, so that after the first nasal obstruction tube 3 is installed in the limit hole 502, the first scale mark 501 is used for marking the center of the first nasal obstruction tube 3 and comparing and measuring with the second scale mark 601, and the moving distance of the first nasal obstruction tube 3 can be obtained; or knowing the target distance to be adjusted, it can be known whether the target distance has been reached by measuring the distance between the first scale mark 501 and the second scale mark 601.

In another embodiment, the first scale mark 501 is disposed on the outer surface of the first nasal obstruction tube 3, and the second scale mark 601 is disposed on the outer surface of the second nasal obstruction tube 4, so that the distance measurement can be realized.

After the first nasal obstruction tube 3 is arranged in the limiting hole 502, the first nasal obstruction tube 3 is limited by the first regulating block 5, so that the tight connection with the top plate 16 of the breathing machine connecting piece 1 is always kept, and the air tightness of the first air outlet channel 103 and the first nasal obstruction tube 3 is ensured.

Specifically, the first nasal obstruction tube 3 includes a bottom tube 31, a middle tube 32 and a top tube 33 which are sequentially connected, and the bottom tube 31, the middle tube 32 and the top tube 33 are enclosed together to form a first tube cavity 301, and the first tube cavity 301 is communicated with the first air outlet channel 103. One end of the bottom tube 31 is tightly attached to the top plate 16 of the ventilator connector 1, and the peripheral wall surface of the bottom tube 31 is cooperatively connected with the limiting hole 502 of the first adjusting block 5, preferably, the peripheral wall surface of the bottom tube 31 is tightly attached to the wall of the limiting hole 502, however, some gaps may be provided. The outer peripheral diameter of the bottom tube 31 remains uniform, facilitating engagement with the limiting aperture 502.

The diameter of the outer periphery of the middle tube 32 gradually decreases from the end connected to the bottom tube 31 to the end connected to the top tube 33, and the diameter of the outer periphery of the top tube 33 gradually increases from the end connected to the middle tube 32 to the end distant from the middle tube 32, so that the horn shape is narrowed at the position where the middle tube 32 and the top tube 33 are connected. The top tube 33 is used for extending into the nasal cavity of a patient, and the horn shape is beneficial to adapting to the nostril size in a certain range, ensuring good sealing connection, and being not easy to fall out of the nasal cavity of the patient, and being convenient to use.

When the first nasal obstruction tube 3 moves, in order to ensure air tightness all the time, the size of the first air outlet channel 103 is smaller than the inner diameter of the bottom tube 31, and the projection of the bottom tube 31 on the top plate 16 of the ventilator connecting piece 1 always covers the first air outlet channel 103 at any position of the movement of the first nasal obstruction tube 3. Where the first gas outlet channel 103 is a circular through hole, its size refers to the diameter, and when the first gas outlet channel 103 is of other shape, its size refers to the distance of the largest void, for example, when the first gas outlet channel is a rectangular hole, its size refers to the distance of the diagonal.

It will be appreciated that the movement of the first nasal prong 3 has a limit, that is, a distance closest and furthest from the second nasal prong 4. In order to limit the limit movement distance of the first nasal obstruction tube 3, a position limiting structure may be provided, which may be a blocking piece or the like provided on the first regulator 7, the ventilator connection 1 or the like, which is blocked from further movement when the first nasal obstruction tube 3 moves to the limit position. The specific structure of the position defining structure is not limited, and various structures can be adopted in the prior art.

It will be appreciated that the respiratory nasal obstruction may also be provided with a position locking structure, so that the first nasal obstruction tube 3 can be locked when moved to any position, for example, when the first nasal obstruction tube 3 and the second nasal obstruction tube 4 are just suitable for a patient to use, the position of the first nasal obstruction tube 3 is locked by the position locking structure, so that the use is prevented from being affected by the movement. The specific structure of the position locking structure is not limited, and various structures existing in the related art may be adopted.

The outer periphery of the end of the bottom tube 31 at the end connected with the top plate 16 is also provided with a rim 34, and the rim 34 protrudes relative to the outer peripheral surface of the bottom tube 31 for pressing the first nasal obstruction tube 3 against the top plate 16 in cooperation with the first adjusting block 5. In particular the end of the reinforcing ring 54 of the first adjusting block 5 remote from the main body plate 51 presses against the rim bed 34.

In one embodiment, referring to fig. 1 to 3, the respiratory nasal plug further comprises a cover plate 2, wherein the cover plate 2 is connected to the extension plate 15. The cover plate 2 is provided with a first through hole 21 and a second through hole 22, the first nasal obstruction tube 3 extends out through the first through hole 21, and the second nasal obstruction tube 4 extends out through the second through hole 22. The diameter of the first through hole 21 is larger than the outer peripheral diameter of the first nasal obstruction tube 3, and the diameter of the first through hole 21 is not smaller than the limit distance of movement of the first nasal obstruction tube 21.

The first adjusting block 5 is arranged on one side of the cover plate 2 facing the breathing machine connecting piece 1 and is pressed by the cover plate 2, the surface of the main body plate 51, which is opposite to the first limiting block 52, is tightly attached to the cover plate 2, and the cover plate 2 presses the main body plate 51 of the first adjusting block 5, so that the reinforcing ring 54 of the first adjusting block 5 presses the edge table 34 of the first nasal obstruction tube 3, and the first nasal obstruction tube 3 is limited to move along the axial direction of the first nasal obstruction tube, namely, the first nasal obstruction tube cannot move in the direction perpendicular to the top plate 16 of the breathing machine connecting piece 1. The size of the main body plate 51 of the first adjusting block 5 is larger than the diameter of the first through hole 21, so that the first adjusting block 5 cannot pop out of the first through hole 21 when moving and is always limited by the cover plate 2, and the structure is stable.

Since the diameter of the first through hole 21 is larger than the outer peripheral diameter of the first nasal obstruction tube 3, the first scale mark 501 can be observed through the gap between the inner wall of the first through hole 21 of the cover plate 2 and the outer peripheral surface diameter of the first nasal obstruction tube 3, so that measurement can be performed.

Further, the respiratory nasal obstruction may further comprise a graduated scale indicating the relative distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4. A graduated scale (not shown in the figure) may be disposed on the cover plate 2, the extending direction of the graduated scale is parallel to the connecting line of the axes of the first nasal obstruction tube 3 and the second nasal obstruction tube 4, the first graduated mark 501 and the second graduated mark 601 point to the graduated scale, and the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4 is obtained by reading the values of the graduated scales pointed to by the first graduated mark 501 and the second graduated mark 601.

The cover plate 2 may be attached to the extension plate 15 in various possible ways, such as gluing, screwing, fastening, etc., and preferably the cover plate 2 is provided in a detachable connection, facilitating the removal of the cover plate 2 for replacement of the first and second nasal prongs 3, 4, and other components.

In one embodiment, the bottom panel 12, side panels 13, outer edge panel 14, extension panel 15, and top panel 16 may be integrally formed such that the ventilator connection 1 includes the bottom panel 12, side panels 13, outer edge panel 14, extension panel 15, and top panel 16.

In another embodiment, the bottom plate 12, the side plates 13, and the top plate 16 may be integrally formed to form the ventilator connection member 1, and the outer edge plate 14 and the extension plate 15 may be integrally connected to the ventilator connection member 1. Alternatively, the cover plate 2, the outer rim plate 14 and the extension plate 15 may be integrally connected to the ventilator connection 1

In one embodiment, the second nasal prongs 4 are secured to the top plate 16 and the separation distance between the first nasal prongs 3 and the second nasal prongs 4 is adjusted by moving the first nasal prongs 3.

In another embodiment, the movement of the second nasal prongs 4 may be regulated by a second regulator 8, similar to the first regulator 7. Referring to fig. 1 to 3, the ventilator connection member 1 is provided with another outer edge plate and extension plate opposite to the outer edge plate 14 and extension plate 15. The extension board is provided with a second connecting hole 106, and the second adjusting piece 8 is connected and matched with the second connecting hole 106 and can move relative to the extension board. The second adjusting piece 8 can also be connected with a second adjusting block 6, and the second adjusting block 6 is used for fixedly connecting the second nasal obstruction tube 4. The second adjusting piece 8 is adjusted to drive the second adjusting block 6 to move, so that the second nasal obstruction tube 4 is driven to move.

In this embodiment, the structure of the second adjusting member 8 may be the same as that of the first adjusting member 7, the structure of the second adjusting block 6 may be the same as that of the first adjusting block 5, and the structure of the second nasal obstruction tube 4 may be the same as that of the first nasal obstruction tube 3, which are all referred to herein, and will not be described again.

In this embodiment, the second air outlet channel 104 is configured in a similar manner to the first air outlet channel 103, so that the second lumen 401 of the second nasal obstruction 4 is always in communication with the second air outlet channel 104.

The materials of the ventilator connecting piece 1, the first adjusting piece 7, the second adjusting piece 8, the first adjusting block 5 and the second adjusting block 6 provided by the embodiment of the application can be plastics, and have good strength, rigidity and lighter weight. The materials of the first nasal obstruction tube 3 and the second nasal obstruction tube 4 can be rubber or silica gel, are softer and are convenient to contact with the nose of a patient, and have good comfort level.

The breathing machine connecting piece 1 can be further connected with a binding band or provided with a binding band mounting hole, so that the whole breathing nasal obstruction can be conveniently fixed on the face or the head of a patient through a head cap, a head band and the like, stable fixation is carried out, and the breathing stability is ensured.

When the breathing nasal plug is used, the air inlet pipe 11 of the breathing machine connecting piece 1 is connected with a breathing machine, and the breathing machine is started by extending the first nasal plug pipe 3 and the second nasal plug pipe 4 into left and right nasal cavities of a patient through pipeline connection, air or oxygen is input, and the air or oxygen enters the nasal cavities of the patient through the air inlet channel 101, the cavity 102, the first air outlet channel 103, the second air outlet channel 104, the first pipe cavity 301 and the second pipe cavity 401, so that the patient can inhale; after inhalation is completed, the waste gas exhaled by the patient is exhaled along the reverse path, and the process of one breath is completed. The process of inhaling and exhaling is repeated for a plurality of times, thereby achieving the purpose of assisting breathing.

Referring to fig. 6 to 8, in another embodiment, a top plate 16 of the ventilator connector 1 is provided with a first air outlet pipe 17 and a second air outlet pipe 18, the first air outlet pipe 17 encloses a first air outlet channel 103, the second air outlet pipe 18 encloses a second air outlet channel 104, the first nasal obstruction tube 3 is connected with the first air outlet pipe 17, and the second nasal obstruction tube 4 is connected with the second air outlet pipe 18. The first nasal obstruction tube 4 is arranged to be of a bendable structure, and the first nasal obstruction tube 4 is driven to be bent by the movement of the first adjusting piece 7, so that the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4 is adjusted.

Specifically, the first air outlet pipe 17 and the second air outlet pipe 18 are disposed on the surface of the top plate 16 facing away from the bottom plate 12. The first nasal obstruction tube 3 further comprises an elastic portion 35 and a connecting tube 36, wherein the elastic portion 35 is connected to one end of the bottom tube 31 far away from the middle tube 32, and the connecting tube 36 is connected to one end of the elastic portion 35 far away from the bottom tube 31. The connecting pipe 35 is used for connecting with the first air outlet pipe 17, and is preferably sleeved on the periphery of the first air outlet pipe 17. The elastic portion 35 has elasticity, is bendable and extensible, and is extendable by a tensile force, and is retractable by releasing the tensile force. The material of the elastic portion 35 may be a material having a preferable elasticity, such as rubber, silicone, plastic, etc. The structure and arrangement of the second nasal obstruction tube 4 can be the same as those of the first nasal obstruction tube 3, and the description thereof will not be repeated here.

In one embodiment, the second nasal obstruction tube 4 may be of a non-movable construction, and the distance between the two may be adjusted by adjusting the first nasal obstruction tube 3.

In another embodiment, the structure of the second nasal obstruction tube 4 may be the same as that of the first nasal obstruction tube 3, so that the position of the second nasal obstruction tube 4 may be adjusted by adjusting the second adjusting member 8, so that the positions of the first nasal obstruction tube 3 and the second nasal obstruction tube 4 may be adjusted simultaneously.

The embodiment of the application also provides a respiratory system, including breathing machine and the breathing nasal obstruction that this application embodiment provided, breathing machine and breathing machine connecting piece's of breathing nasal obstruction inlet channel intercommunication realizes the purpose of assisting patient's breathing.

The embodiment of the application also provides a nasal obstruction fitting, please refer to fig. 1 to 3, which comprises a first adjusting piece 7, a first nasal obstruction tube 3 and a second nasal obstruction tube 4. The first nasal obstruction tube 3 and the second nasal obstruction tube 4 are arranged side by side, and the first adjusting piece 7 is connected with the first nasal obstruction tube 3 and/or the second nasal obstruction tube 4. The first adjusting piece 7 is used for adjusting the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4.

In this embodiment, the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4 is adjustable, so that the use of patients with different nostril intervals can be satisfied, and the comfort level of the patients is improved. The first nasal obstruction tube 3 and the second nasal obstruction tube 4 can be connected with a breathing machine to ventilate, thereby achieving the purpose of assisting breathing.

Further, the first adjusting member 7 is any one or a combination of a plurality of connecting rods, gears, racks, cams, turbines and worms.

In one embodiment, the nasal prong fitting further includes an extension plate 15, the extension plate 15 being adapted to be connected to the ventilator connection 1.

In this embodiment, the ventilator connection member 1 may include an air inlet pipe 11, a bottom plate 12, a side plate 13, and a top plate 16, and the extension plate 15 is connected to the top plate 16. Alternatively, the ventilator connection 1 comprises an air inlet duct 11, a bottom panel 12, side panels 13 and top panel 16 and an outer rim panel 14, with an extension panel 15 attached to the outer rim panel 14.

In one embodiment, the nasal prong fitting further includes an outer rim plate 14, with an extension plate 15 attached to the outer rim plate 14, the outer rim plate 14 being adapted to be connected to the ventilator connection 1. At this time, the extension plate 15 is indirectly connected to the ventilator connection 1 through the outer edge plate 14.

In this embodiment, the ventilator connection member 1 includes an air inlet pipe 11, a bottom plate 12, a side plate 13, and a top plate 16, and an outer edge plate 14 is connected to the side plate 13.

In one embodiment, the nasal plug fitting further comprises a cover plate 2, the cover plate 2 is connected to the extension plate 15, a first through hole 21 and a second through hole 22 are formed in the cover plate 2, the first nasal plug tube 3 is sleeved in the first through hole 21, the second nasal plug tube 4 is sleeved in the second through hole 22, and the diameter of the first through hole 21 is not smaller than the movement limit distance of the first nasal plug tube 3.

In this embodiment, the extension board 15 is connected to the cover board 2, and may be specifically formed integrally, bonded, connected by a connection structure, or the like. The second nasal cannula 4 may be fixed within the second through-hole 22 or may be movable in space within the second through-hole 22 similar to the first nasal cannula 3.

In one embodiment, the first adjusting member 7 is movably connected to the extension plate 15 and connected to the first nasal obstruction tube 3 to move the first nasal obstruction tube 3.

In one embodiment, the extending plate 15 is provided with a first connecting hole, the first adjusting piece 7 includes an adjusting rod 72 and a linkage block 74 connected with the adjusting rod 72, the adjusting rod 72 is arranged in the first connecting hole in a penetrating manner, the first nasal obstruction tube 3 is connected with the first adjusting block 5, and the adjusting rod 72 is adjusted, so that the linkage block 74 drives the first adjusting block 5 to move relative to the second nasal obstruction tube 4.

The second nasal obstruction tube 4 of the embodiment is fixed, and the first adjusting piece 7 adjusts the movement of the first nasal obstruction tube 3, so that the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4 is adjustable.

In another embodiment, the extending plate 15 is provided with a first connecting hole, the first adjusting member 7 includes an adjusting rod 72 and a linkage block 74 connected with the adjusting rod 72, the adjusting rod 72 is inserted into the first connecting hole, the first nasal obstruction tube 3 is connected with the first adjusting block 5, the second nasal obstruction tube 4 is connected with the second adjusting block 6, and the adjusting rod 72 is adjusted, so that the linkage block 74 drives the first adjusting block 5 and the second adjusting block 6 to move relatively.

The first adjusting piece 7 of the embodiment can simultaneously adjust the first nasal obstruction tube 3 and the second nasal obstruction tube 4, so that the interval distance between the first nasal obstruction tube 3 and the second nasal obstruction tube 4 can be adjusted.

In one embodiment, the extension of the adjustment rod 72 intersects the axis of the first nasal prongs 3 and the second nasal prongs 4.

In one embodiment, the nasal prong fitting further includes a spacing marking that marks the relative distance between the first nasal prong 3 and the second nasal prong 4.

In one embodiment, the nasal prong fitting further includes a graduated scale indicating the relative distance between the first nasal prong 3 and the second nasal prong 4.

Compared with the respiratory nasal obstruction in the previous embodiment, the nasal obstruction fitting in the present embodiment is different in that: the ventilator connection 1 is not included. The nasal prong fitting of the present embodiment may form the respiratory nasal prong of the previous embodiment by being mounted to the ventilator connection 1.

The other structure of the nasal obstruction fitting of this embodiment is substantially the same as that of the respiratory nasal obstruction of the foregoing embodiment, and reference should be made to the structure of the respiratory nasal obstruction described above.

The embodiment of the application also provides a respiratory system, including breathing machine, breathing machine connecting piece and the nasal plug accessory that this application embodiment provided, the nasal plug accessory is installed on the breathing machine connecting piece, and the breathing machine connecting piece is connected to the breathing machine, realizes the purpose of assisting patient's breathing.

The foregoing has described in detail a respiratory nasal obstruction, nasal obstruction fitting and respiratory system provided by embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, the description of the foregoing embodiments being merely intended to assist in understanding the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have modifications in specific embodiments and application scope in accordance with the ideas of the present application, the present disclosure should not be construed as limiting the present application in view of the above description.

Claims

1. The respiratory nasal obstruction is characterized by comprising a respiratory machine connecting piece, a first nasal obstruction tube, a second nasal obstruction tube and a first adjusting piece; the breathing machine connecting piece is provided with an air inlet channel, a first air outlet channel and a second air outlet channel, the air inlet channel is communicated with the first air outlet channel and the second air outlet channel, and the air inlet channel is used for being communicated with a breathing machine;

the ventilator connecting piece comprises a cavity, one side of the cavity is a top plate, and the first air outlet channel and the second air outlet channel are arranged on the top plate;

the first nasal obstruction tube and the second nasal obstruction tube are respectively clung to the top plate, so that the first nasal obstruction tube is communicated with the first air outlet channel, and the second nasal obstruction tube is communicated with the second air outlet channel;

The first adjusting piece is connected with the first nasal obstruction tube and/or the second nasal obstruction tube, and the distance between the first nasal obstruction tube and the second nasal obstruction tube can be adjusted by moving the first adjusting piece;

the first nasal obstruction tube and/or the second nasal obstruction tube respectively comprise a bottom tube, a middle tube and a top tube which are sequentially connected and coaxially arranged, a first adjusting block is connected to the periphery of the bottom tube of the first nasal obstruction tube and/or the second nasal obstruction tube, the first adjusting block is connected with a first adjusting piece, one end of the bottom tube of the first nasal obstruction tube and/or the bottom tube of the second nasal obstruction tube is clung to the top plate, and the movement of the first adjusting piece can drive the bottom tube of the first nasal obstruction tube and/or the bottom tube of the second nasal obstruction tube to move relative to the top plate; or,

the first nasal obstruction tube is of a bendable structure, and the first adjusting piece moves to drive the first nasal obstruction tube to bend, so that the interval distance between the first nasal obstruction tube and the second nasal obstruction tube is adjusted.

2. The respiratory nasal obstruction of claim 1, wherein the first adjustment member is configured to move the first nasal obstruction tube and/or the second nasal obstruction tube to adjust a separation distance of the first nasal obstruction tube and the second nasal obstruction tube.

3. The respiratory nasal plug of claim 2, wherein the inlet passageway, the first outlet passageway, and the second outlet passageway are all in communication with the chamber; the first adjusting piece drives the first nasal obstruction tube and/or the second nasal obstruction tube to move relative to the top plate.

4. The respiratory nasal obstruction of claim 3, wherein the first adjustment member is any one or a combination of a linkage, a gear, a rack, a cam, a worm gear, a worm.

5. The respiratory nasal plug of claim 3, wherein a side of the chamber opposite the top plate is a bottom plate, and a face of the chamber connecting the top plate and the side plate is a side plate; the top plate or the side plate is connected with an extension plate, and the extension plate protrudes relative to the surface of the top plate, which is opposite to the bottom plate.

6. The respiratory nasal plug according to claim 5, further comprising an outer edge plate and a cover plate, wherein the outer edge plate is connected to a side of the side plate facing away from the chamber or an end of the top plate, an extension direction of the outer edge plate is parallel to an extension direction of the top plate, and the extension plate is connected to the outer edge plate; the cover plate is connected to one end of the extension plate, which is far away from the top plate.

7. The respiratory nasal obstruction of claim 6, wherein the first adjustment member is movably coupled to the top plate or the extension plate and is coupled to the first nasal obstruction tube to move the first nasal obstruction tube.

8. The respiratory nasal obstruction of claim 6, wherein the first adjustment member is movably coupled to the peripheral plate or the cover plate and is coupled to the first nasal obstruction tube to move the first nasal obstruction tube.

9. The respiratory nasal obstruction of claim 7, wherein the extension plate is provided with a first connecting hole, the first adjusting piece comprises an adjusting rod and a linkage block connected with the adjusting rod, the adjusting rod is arranged in the first connecting hole in a penetrating way, the first nasal obstruction tube is connected with the first adjusting block matched with the linkage block, and the adjusting rod drives the first adjusting block to move relative to the second nasal obstruction tube through the linkage block.

10. The respiratory nasal plug of claim 9, wherein the extension of the adjustment stem intersects an axis of the first nasal plug tube and the second nasal plug tube.

11. The respiratory nasal plug according to claim 6, wherein a first through hole and a second through hole are formed in a cover plate of the respiratory nasal plug, the first nasal plug tube extends out through the first through hole, the second nasal plug tube extends out through the second through hole, and the diameter of the first through hole is not smaller than the limit distance of movement of the first nasal plug tube.

12. The respiratory nasal obstruction of claim 9, wherein the first adjustment block is disposed in close proximity to the cover plate to limit axial movement of the first nasal obstruction tube along the first nasal obstruction tube.

13. The respiratory nasal obstruction of claim 1, further comprising a spacing marker that marks the relative distance between the first nasal obstruction tube and the second nasal obstruction tube.

14. The respiratory nasal obstruction of claim 1, further comprising a graduated scale indicating a relative distance between the first nasal obstruction tube and the second nasal obstruction tube.

15. The respiratory nasal plug according to claim 1, wherein the top tube is configured to extend into a nasal cavity of a patient, the middle tube is a portion of the first nasal plug tube or the second nasal plug tube other than the bottom tube and the top tube, a diameter of an outer periphery of the middle tube gradually decreases from an end connected to the bottom tube to an end connected to the top tube, and a diameter of an outer periphery of the top tube gradually increases from an end connected to the middle tube to an end distant from the middle tube.

16. The respiratory nasal obstruction of claim 3, wherein one end of the first nasal obstruction tube and one end of the second nasal obstruction tube are respectively and closely attached to the top plate, the size of the first air outlet channel is smaller than the inner diameter of the bottom tube, and the projection of the first nasal obstruction tube and the second nasal obstruction tube on the top plate always covers the first air outlet channel at any position where the first nasal obstruction tube and/or the second nasal obstruction tube move.

17. The respiratory nasal plug according to claim 16, wherein an end of the bottom tube connected to the top plate is further provided with a rim protruding with respect to an outer peripheral surface of the bottom tube, the rim being for restricting displacement of the first nasal plug tube in an axial direction thereof.

18. The respiratory nasal plug of claim 3, wherein a first outlet tube is disposed on the top plate, the first outlet tube encloses the first outlet channel, and the first nasal plug tube is connected to the first outlet tube.

19. The respiratory nasal plug according to any one of claims 1 to 18, further provided with a position defining structure that limits a range of movement of the first nasal plug tube.

20. The respiratory nasal plug according to any one of claims 1 to 18, further provided with a position locking structure to fix the first nasal plug tube in any position.

21. The respiratory nasal obstruction according to any one of claims 2 to 18, wherein the first adjustment member is configured to move the first nasal obstruction tube, the respiratory nasal obstruction further comprising a second adjustment member configured to move the second nasal obstruction tube to adjust a separation distance of the first nasal obstruction tube and the second nasal obstruction tube in cooperation with the first adjustment member.

22. The nasal obstruction fitting is characterized by comprising an extension plate, a first adjusting piece, a second adjusting piece, a first nasal obstruction tube and a second nasal obstruction tube; the extension plate is used for being connected to a breathing machine connecting piece, the first nasal obstruction tube and the second nasal obstruction tube are arranged side by side, the first adjusting piece and the second adjusting piece are movably connected to the extension plate, the first adjusting piece is connected with the first nasal obstruction tube, and the second adjusting piece is connected with the second nasal obstruction tube; the distance between the first nasal obstruction tube and the second nasal obstruction tube can be adjusted by moving the first adjusting piece and/or the second adjusting piece;

the first nasal obstruction tube and/or the second nasal obstruction tube respectively comprise a bottom tube, a middle tube and a top tube which are sequentially connected and coaxially arranged, wherein the periphery of the bottom tube of the first nasal obstruction tube is connected with a first adjusting block, the first adjusting block is connected with a first adjusting piece, the periphery of the bottom tube of the second nasal obstruction tube is connected with a second adjusting block, the second adjusting block is connected with a second adjusting piece, the movement of the first adjusting piece can independently drive the first nasal obstruction tube to move, and the movement of the second adjusting piece can independently drive the second nasal obstruction tube to move; or,

The first nasal obstruction tube can be independently driven to bend by the movement of the first adjusting piece, and the second nasal obstruction tube can be independently driven to bend by the movement of the second adjusting piece, so that the interval distance between the first nasal obstruction tube and the second nasal obstruction tube is adjusted.

23. The nasal prong fitting of claim 22, wherein the first adjustment member is any one or a combination of a link, a gear, a rack, a cam, a worm gear, a worm.

24. The nasal prong fitting of claim 22, further comprising an outer rim plate, wherein the extension plate is coupled to the outer rim plate, wherein the outer rim plate is configured to couple to the ventilator coupling.

25. The nasal prong fitting of claim 24, further comprising a cover plate coupled to the extension plate, the cover plate having a first through hole and a second through hole, the first nasal prong being disposed within the first through hole, the second nasal prong being disposed within the second through hole, the first through hole having a diameter not less than a limiting distance of movement of the first nasal prong.

26. The nasal prong fitting of claim 22, wherein the first adjustment member is movably coupled to the extension plate and coupled to the first nasal prong to move the first nasal prong.

27. The nasal prong fitting of claim 25, wherein the first adjustment member is movably coupled to the peripheral plate or the cover plate and coupled to the first nasal prong to move the first nasal prong.

28. The nasal plug fitting of claim 26, wherein the extension plate is provided with a first connecting hole, the first adjusting member comprises an adjusting rod and a linkage block connected with the adjusting rod, the adjusting rod is arranged in the first connecting hole in a penetrating manner, the first nasal plug tube is connected with the first adjusting block, and the adjusting rod is adjusted so that the linkage block drives the first adjusting block to move relative to the second nasal plug tube.

29. The nasal plug fitting of claim 26, wherein the extension plate is provided with a first connecting hole, the first adjusting member comprises an adjusting rod and a linkage block connected with the adjusting rod, the adjusting rod is arranged in the first connecting hole in a penetrating way, and the linkage block of the first adjusting member is connected with the first adjusting block; and adjusting the adjusting rod so that the linkage block drives the first adjusting block to move relative to the second adjusting block.

30. The nasal prong fitting of claim 28 or 29, wherein the extension of the adjustment stem intersects the axes of the first nasal prong and the second nasal prong.

31. The nasal prong fitting of claim 22, further comprising a spacing marking the relative distance between the first nasal prong and the second nasal prong.

32. The nasal prong fitting of claim 22, further comprising a graduated scale indicating the relative distance between the first nasal prong and the second nasal prong.

33. A respiratory system comprising a ventilator and a respiratory nasal obstruction according to any one of claims 1 to 21, the ventilator in communication with an inlet passage of a ventilator connection of the respiratory nasal obstruction.

34. A respiratory system comprising a ventilator, a ventilator connection and a nasal prong fitting according to any of claims 22 to 32, the nasal prong fitting being mounted to the ventilator connection, the ventilator connection being connected to the ventilator.