CN113226420A

CN113226420A - Breathing nasal plug, nasal plug accessory and respiratory system

Info

Publication number: CN113226420A
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: 2021-08-06
Anticipated expiration: 2039-01-22
Also published as: WO2020150901A1; CN113226420B

Abstract

A breathing nasal plug, a nasal plug accessory and a breathing system, wherein the breathing nasal plug comprises a breathing machine connecting piece (1), a first nasal plug tube (3) and a second nasal plug tube (4); the respirator 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 communicated with a respirator; the first nasal plug tube (3) is communicated with the first air outlet channel (103), and the second nasal plug tube (4) is communicated with the second air outlet channel (104); the first nasal plug tube (3) and/or the second nasal plug tube (4) are movable, so that the separation distance between the first nasal plug tube (3) and the second nasal plug tube (4) can be adjusted. But through setting up first nasal plug pipe (3) and/or second nasal plug pipe (4) relative movement for the spacing distance of first nasal plug pipe (3) and second nasal plug pipe (4) is adjustable, can satisfy the use of the patient of different nostril intervals, improves patient's comfort level.

Description

Breathing nasal plug, nasal plug accessory and respiratory system

Technical Field

The application relates to the technical field of medical equipment, in particular to a breathing nasal plug, a nasal plug accessory and a breathing system.

Background

Respiratory support is often required when a patient develops respiratory distress or respiratory failure. Modes of respiratory support include non-invasive ventilation and invasive ventilation. In order to minimize the complications of invasive mechanical ventilation and to effectively treat respiratory diseases, clinicians tend to prefer noninvasive ventilation, which is used to determine whether invasive mechanical ventilation is to be administered based on the supporting effect of noninvasive ventilation.

Because the nasal cavities of patients vary widely in size, including nostril aperture and nostril spacing. The size of the nasal plug is proper or not, and the comfort and the ventilation airtightness of the patient are related. At the same time, the treatment period of the ventilator is long, possibly several weeks to several months. Improper size of the nasal plug may cause facial skin crush and nasal septum injury of the patient, and therefore, for treatment with a ventilator for a long time, medical personnel may be clinically advised to periodically loosen contact between the patient and the nasal plug, improve comfort and reduce injury. In addition, for the nasal plug, manufacturers can provide a plurality of nasal plugs with different types through proper material selection, material hardness adjustment and matching, so that medical personnel can select a relatively proper size of the nasal plug.

How the same breathing nasal plug can adapt to different nasal intervals of a patient has no good method for the existing product, and the good method is the main reason for the nasal septum pressure injury of the patient.

Disclosure of Invention

In order to solve the technical problem, the breathing nasal plug, the nasal plug accessory and the breathing system are provided, and the breathing nasal plug can adapt to patients with different nostril intervals by setting the first nasal plug tube and the second nasal plug tube to be adjustable in spacing distance.

In a first aspect, an embodiment of the present application provides a respiratory nasal plug, including a ventilator connector, a first nasal plug tube, and a second nasal plug tube; the respirator 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 respirator; the first nasal plug tube is communicated with the first air outlet channel, and the second nasal plug tube is communicated with the second air outlet channel; the first nasal prong and/or the second nasal prong are movable such that a separation distance between the first nasal prong and the second nasal prong is adjustable.

Wherein the respiratory nasal plug comprises a first adjusting member for moving the first nasal prong and/or the second nasal prong to adjust a separation distance of the first nasal prong and the second nasal prong.

The breathing machine connecting piece comprises a cavity, a top plate is arranged on one side of the cavity, 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 plug tube and/or the second nasal plug tube to move relative to the top plate.

Wherein, the first adjusting piece is any one or combination of a plurality of connecting rods, gears, racks, cams, worm wheels and worms.

One side of the cavity opposite to the top plate is a bottom plate, and the surface of the cavity connecting the top plate and the side plate is a side plate; the top plate or the side plates are connected with extension plates, and the extension plates protrude relative to the surface of the top plate, which is back 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 faces away from 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, far away from the top plate, of the extension plate.

The first adjusting piece is movably connected to the top plate or the extension plate and connected to the first nasal plug tube so as to drive the first nasal plug 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 plug tube so as to drive the first nasal plug 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 penetrates through the first connecting hole, the first nasal plug 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 plug tube through the linkage block.

Wherein an extension of the adjustment rod intersects an axis of the first nasal prong and the second nasal prong.

The cover plate of the breathing 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 moving limit distance 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.

Wherein the respiratory nasal prong further comprises a spacing mark marking a relative distance between the first nasal prong tube and the second nasal prong tube.

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

The first nasal plug tube and the second nasal plug tube respectively comprise a bottom tube, a middle tube and a top tube which are sequentially connected, the bottom tube is communicated with the first air outlet channel, the diameter of the periphery of the middle tube is gradually reduced 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 is gradually increased from one end connected with the middle tube to the end far away from the middle tube.

One end of the first nasal plug tube and one end of the second nasal plug tube are respectively tightly 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 projections of the first nasal plug tube and the second nasal plug tube on the top plate always cover the first air outlet channel at any position where the first nasal plug tube and/or the second nasal plug tube move.

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

The first air outlet pipe is arranged on the top plate, the first air outlet pipe surrounds the first air outlet channel, the first nasal plug pipe is connected with the first air outlet pipe, the first nasal plug pipe is of a bendable structure, and the first adjusting piece moves to drive the first nasal plug pipe to be bent, so that the spacing distance between the first nasal plug pipe and the second nasal plug pipe is adjusted.

The respiratory nasal plug is further provided with a position limiting structure for limiting the moving range of the first nasal plug tube.

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

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

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

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

Wherein the nasal prong fitting further comprises a peripheral plate, the extension plate being connected to the peripheral plate, the peripheral plate being for connection to the ventilator connector.

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 pipe is sleeved in the first through hole, the second nose plug pipe is sleeved in the second through hole, and the diameter of the first through hole is not smaller than the moving limit distance of the first nose plug pipe.

The first adjusting piece is movably connected to the extending plate and connected to the first nasal plug tube so as to drive the first nasal plug 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 penetrates through the first connecting hole, the first nasal plug tube is connected with a 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.

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 penetrates through the first connecting hole, the first nasal plug pipe is connected with a first adjusting block, the second nasal plug pipe is connected with a second adjusting block, and the adjusting rod is adjusted to enable the linkage block to drive the first adjusting block and the second adjusting block to move relatively.

Wherein the nasal prong fitting further comprises spacing indicia marking a relative distance between the first and second nasal prong tubes.

Wherein the nasal prong fitting further comprises a graduated scale indicating the relative distance between the first nasal prong tube and the second nasal prong tube.

In a third aspect, the present application provides a respiratory system comprising a ventilator and the respiratory prong of any of the various embodiments of the first aspect, the ventilator being in communication with an air inlet passage of a ventilator connector of the respiratory prong.

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

This application embodiment is through setting up first nasal obstruction pipe and/or second nasal obstruction pipe relative movement for the spacing distance of first nasal obstruction pipe and second nasal obstruction pipe is adjustable, can satisfy the patient's of different nostril intervals use, improves the gas tightness of ventilating and patient's comfort level, especially to neonate's patient, can effectively reduce because of nasal obstruction size improper damage such as nasal septum damage, facial skin crush injury that causes.

Drawings

Fig. 1 is a schematic perspective view of a respiratory nasal plug according to an embodiment.

Fig. 2 is a schematic top view of the respiratory nasal plug according to an embodiment.

FIG. 3 is a schematic cross-sectional view of the nasal respiratory plug of the embodiment of FIG. 2 taken along 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 angle of the first adjusting block according to an embodiment.

FIG. 6 is a schematic cross-sectional view of the nasal plug of FIG. 2 in the direction A-A.

FIG. 7 is a perspective view of a first nasal prong of an embodiment.

FIG. 8 is a front view of a first nasal prong of an embodiment.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Referring to fig. 1 to 3, the present application provides a nasal respiratory plug, which includes a ventilator connector 1, a first nasal plug tube 3 and a second nasal plug tube 4. The respirator connector 1 is provided with an inlet passage 101, a first outlet passage 103 and a second outlet passage 104. Inlet channel 101 is in communication with first outlet channel 103 and second outlet channel 104, and inlet channel 101 is adapted to be in communication with a ventilator (not shown). First nasal prong 3 is in communication with first outlet passage 103, and second nasal prong 4 is in communication with second outlet passage 104. The first nasal prong 3 and/or the second nasal prong 4 are movable such that a separation distance between the first nasal prong 3 and the second nasal prong 4 is adjustable.

But through setting up first nasal plug pipe 3 and/or second nasal plug pipe 4 relative movement for first nasal plug pipe 3 is adjustable with second nasal plug pipe 4's interval distance, can satisfy the use of the patient of different nostril intervals, improves patient's comfort level.

In this embodiment, the first nasal prong 3 and/or the second nasal prong 4 may be moved using a suitable tool such that the separation distance between the first nasal prong 3 and the second nasal prong 4 is adjustable. Suitable tools may be tweezers, swabs, etc., or may be finger-activated.

In one embodiment, the nasal prong includes a first adjustment member 7, and the first adjustment member 7 is used to move the first nasal prong 3 and/or the second nasal prong 4 to adjust the separation distance between the first nasal prong 3 and the second nasal prong 4.

In this embodiment, the first adjustment member 7 can be attached to either the first nasal prong 3 or the second nasal prong 4 to move one of the nasal prongs individually. Or can be arranged on the respirator connecting piece 1 and positioned between the first nasal plug tube 3 and the second nasal plug tube 4, and the first nasal plug tube 3 and the second nasal plug tube 4 can be moved simultaneously.

The respirator connector 1 is 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. An inlet channel 101 may be provided at one end of the respirator connector 1, and a first outlet channel 103 and a second outlet channel 104 are preferably provided at the opposite end to the inlet channel 101. In other words, first gas outlet channel 103 and second gas outlet channel 104 preferably extend in the same direction as gas inlet channel 101, so that the gas entering from gas inlet channel 101 can smoothly flow to first gas outlet channel 103 and second gas outlet channel 104, and the obstruction of gas flow is reduced.

Specifically, the ventilator attachment 1 includes an inlet tube 11, and opposing bottom and

top plates

12, 16, and a side plate 13 connected between the bottom and

top plates

12, 16, the bottom, top and

side plates

12, 16, 13 enclosing a chamber 102. The air inlet pipe 11 is connected with the bottom plate 12, and an air inlet channel 101 enclosed by the air inlet pipe 11 is communicated with the chamber 102. A first outlet channel 103 and a second outlet channel 104 are provided in the top plate 16, communicating with the chamber 102.

Preferably, the width (or length) dimension of chamber 102 is larger than the width (or diameter) dimension of inlet channel 101, and the gas entering inlet channel 101 can be redistributed uniformly within chamber 102, so that the gas flow exiting through first outlet channel 103 and 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 gas inlet passage 101, as long as gas can flow therethrough.

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

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 plug tube 3 and/or the second nasal plug tube 4 are movable on the plane of the top plate 16. First outlet gas channel 103 and second outlet gas channel 104 are separated by a predetermined distance. Taking the first air outlet channel 103 and the second air outlet channel 104 as circular through holes on the top plate 16 as an example, the preset distance is a distance between centers of the first air outlet channel and the second air outlet channel, the range of the preset distance is preferably 5-20mm, and different preset distances can be made into different models. Different models can be selected according to patients of different ages, for example, the infant can be selected to be 5-10mm, the minor can be selected to be 10-15mm, the adult can be selected to be 10-20mm, and the like, so that the application range is wide.

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

In other embodiments, the outer edge panel 14 may be omitted and the extension panel 15 may be directly attached to the side panel 13 or the top panel 16, with the extension panel 15 protruding relative to the surface of the top panel 16 facing away from the bottom panel 12.

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

The first adjusting member 7 can be directly connected with the first nasal plug tube 3, and can also be connected with the first nasal plug tube 3 through a transmission structure, and the transmission structure can be any one or combination of a connecting rod, a gear, a rack, a cam, a turbine and a worm. Alternatively, the first adjusting member 7 itself is any one or more combination of a connecting rod, a gear, a rack, a cam, a worm wheel and a worm.

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

In this embodiment, the first connecting hole is a threaded hole, the first adjusting member 7 is provided with a corresponding threaded structure, 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 extending plate 15.

In another embodiment, the first connecting hole is a light hole, and the first adjusting member 7 can slide linearly relative to the first connecting hole, so that the first nasal plug tube 3 can move 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 is fixedly connected to one end of the adjusting rod 72, and threads are formed on an outer circumferential surface of the adjusting rod 72 for being coupled with the first connecting hole, so that the adjusting rod 72 moves relative to the extension plate 15 when rotating. The other end of the adjustment lever 72 opposite the lever 71 is adapted to be connected to the first nasal prong 3. The operating handle 71 is an alternative arrangement, and if the operating handle 71 is not provided, the first adjusting part 7 is moved by adjusting the adjusting lever 72.

In other embodiments, the first adjusting member 7 and the extension plate 15 may have other transmission fit types, such as a shaft hole fit transmission, a rack and pinion transmission, a worm and gear transmission, a cam link transmission, and the like. The first adjusting member 7 can only slide relative to the extending plate 15, so that the first adjusting member 7 can drive the first nasal plug tube 3 to move relative to the second nasal plug tube 4.

In one embodiment, a linkage block 74 is connected to one end of the adjustment rod 72 and cooperates with the first adjustment block 5, and the first nasal prong 3 is connected to the first adjustment block 5. The operation handle 71 or the adjustment 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 adjustment block 5 to move, so as to drive the first nasal cannula 3 to move. Thus, adjustment of the first adjustment member 7 causes relative movement of the first nasal prong 3.

In another embodiment, the same as the previous embodiment, except that the first nasal prong 3 is connected with the first adjusting block 5, and the second nasal prong 4 is connected with the second adjusting block 6, 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. Adjusting the first adjustment member 7 can cause the first nasal prong 3 and the second nasal prong 4 to move simultaneously and to move relatively, thereby adjusting the separation distance therebetween.

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 in the main body plate 51, the second limiting block 53 is disposed on one side of the first limiting block 52 away from the limiting hole 502, 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, the linkage block is closely 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 plug tube 3, and the linkage block 74 is accommodated in the space of the limiting groove 504 in the rotating process. When the operating handle 71 rotates to drive the adjusting rod 72 to move telescopically, 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 plug tube 3 to move.

In a preferred embodiment, the adjusting rod 72 is further provided with a circumferential connecting groove 701, a portion provided with the connecting groove 702 forms an extending rod 73, and the extending 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 recess 503 is opened to a position having a certain height from the main body plate 51, and the bottom wall of the recess 503 of the second stopper 53 protrudes relative to the main body plate 51 to form a protrusion 531, and the protrusion 531 is used to extend into the connecting groove 702 and connect with the extension rod 73.

In a preferred embodiment, the main body plate 51 is further fixedly connected with a reinforcing ring 54, the reinforcing ring 54 is disposed along the periphery of the limiting hole 502, so that a space enclosed by 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 plug tube 3, and enhancing the connection stability.

In a preferred embodiment, the main body plate 51 is a rectangular plate, the first stopper 52 and the second stopper 53 are linearly extended, the second stopper 53 is disposed on one side edge of the main body plate 51, and the extending direction of the first stopper 53 is the same as the extending direction of the second stopper 52, so that the width of the stopper groove 504 is always the same. The reinforcing ring 54 is shaped like a circular ring, the reinforcing ring 54 is disposed on the same side surface of the first stopper 52 and the second stopper 53 with respect to the main body plate 51, the outer circumferential surface of the reinforcing ring 54 may be connected to the first stopper 52, and the height of the reinforcing ring 54 in the direction perpendicular to the main body plate 51 may be the same as 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 disposed 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 plug tube 3, which is beneficial to maintaining the stability of the first nasal plug tube 3 during movement. Furthermore, the extension of the adjusting rod 72 is intersected with the axes of the first nasal plug tube 3 and the second nasal plug tube 4, and the extension of the adjusting rod 72, the first nasal plug tube 3 and the second nasal plug tube 4 can be in the same plane, so that when the adjusting rod 72 moves in a telescopic mode, the first nasal plug tube 3 is always close to or far away from the second nasal plug tube 4, and the structure is simple.

The adjustment 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 adjustment rod 72. In order to facilitate the manufacturing of the connection groove 701, a complete cylindrical rod member may be used to open the connection groove 701 along the circumferential direction, so as to obtain the adjustment rod 72, the extension rod 73, and the linkage block 74. The handle 71 may also be cylindrical and may be patterned on its outer periphery to enhance friction and facilitate handling.

Further, the respiratory prongs may also include spacing indicia that mark the relative distance between the first and second

nasal prong tubes

3, 4. The spacing indicia may comprise a first scale mark 501 and a second scale mark 601.

In one embodiment, the first scale mark 501 is arranged on the first adjusting block 5, the second scale mark 601 is arranged on the second adjusting block 6, 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 stopper 52 may further be provided with a first scale mark 501, and the first scale mark 501 may be an elongated groove and may be colored to mark. The second scale markings 601 are similar to the first scale markings 501, and may be referred to. The extension of the first scale mark 501 can pass through the axis of the limiting hole 502, so that after the first nasal plug tube 3 is installed in the limiting hole 502, the first scale mark 501 is used for marking the center of the first nasal plug tube 3, and is compared and measured with the second scale mark 601, and the moving distance of the first nasal plug tube 3 can be obtained; or the target distance to be adjusted is known, whether the target distance is reached can be known 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 arranged on the outer surface of the first nasal plug tube 3, and the second scale mark 601 is arranged on the outer surface of the second nasal plug tube 4, so that distance measurement can be realized.

First nose cock pipe 3 is installed in spacing hole 502 back, and first nose cock pipe 3 is by the limiting position of first regulating block 5, remains throughout the zonulae occludens with roof 16 of breathing machine connecting piece 1, guarantees first outlet channel 103 and first nose cock pipe 3's gas tightness.

Specifically, the first nasal plug tube 3 comprises a bottom tube 31, a middle tube 32 and a top tube 33 which are connected in sequence, the bottom tube 31, the middle tube 32 and the top tube 33 jointly enclose 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 outer peripheral wall surface of the bottom tube 31 is fittingly connected to the limiting hole 502 of the first adjusting block 5, preferably, the outer peripheral wall surface of the bottom tube 31 is tightly attached to the hole wall of the limiting hole 502, but of course, there may be some gaps. The outer diameter of the bottom tube 31 is kept consistent, so that the bottom tube can be matched with the limiting hole 502 conveniently.

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

When the first nasal plug tube 3 moves, in order to always ensure the air tightness, the size of the first air outlet channel 103 is set to be smaller than the inner diameter of the bottom tube 31, and at any position of the movement of the first nasal plug tube 3, the projection of the bottom tube 31 on the top plate 16 of the respirator connector 1 always covers the first air outlet channel 103. The size of the first air outlet channel 103 refers to the diameter when the first air outlet channel 103 is a circular through hole, and the size of the first air outlet channel 103 is the distance of the largest gap when the first air outlet channel is in other shapes, for example, the size of the first air outlet channel refers to the distance of the diagonal line when the first air outlet channel is a rectangular hole.

It will be appreciated that there are limits to the movement of the first nasal prong 3, that is, the closest and farthest distances 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 stop block or the like provided on the first adjustment member 7, the ventilator attachment member 1 or the like, which is stopped from further movement when the first nasal obstruction tube 3 is moved to the limit position. The specific structure of the position restricting structure is not limited, and various existing structures can be adopted.

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

The outer periphery of the end of the bottom tube 31 at the end connected to the top plate 16 is further provided with a rim 34, and the rim 34 protrudes relative to the outer peripheral surface of the bottom tube 31 for cooperating with the first adjusting block 5 to press the first snuffle tube 3 against the top plate 16. And in particular the reinforcing ring 54 of the first adjustment block 5, is pressed against the rim platform 34 away from the end of the body plate 51.

In one embodiment, referring to fig. 1 to 3, the nasal breathing plug further comprises a cover plate 2, and the cover plate 2 is connected to the extension plate 15. Be equipped with first through-hole 21 and second through-hole 22 on the apron 2, first nose cock pipe 3 stretches out through first through-hole 21, and second nose cock pipe 4 stretches out through second through-hole 22. The diameter of the first through hole 21 is larger than the peripheral diameter of the first nasal plug tube 3, and the diameter of the first through hole 21 is not smaller than the limit distance of the movement of the first nasal plug tube 21.

The first adjusting block 5 is disposed on one side of the cover plate 2 facing the connecting part 1 of the breathing machine and pressed by the cover plate 2, the surface of the main body plate 51 facing away from 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 rim 34 of the first nasal plug tube 3, thereby limiting the axial movement of the first nasal plug tube 3 along itself, i.e. the movement cannot be performed in the direction perpendicular to the top plate 16 of the connecting part 1 of the breathing machine. 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 from the first through hole 21 when moving, is always limited by the cover plate 2, and has a stable structure.

Since the diameter of the first through hole 21 is larger than the outer circumferential diameter of the first nasal prong 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 circumferential surface diameter of the first nasal prong 3, so that measurement can be performed.

Further, the respiratory nasal prongs may also include a graduated scale that indicates the relative distance between the first nasal prong tube 3 and the second nasal prong tube 4. The graduated scale (not shown in the figure) can set up on apron 2, and the extending direction of graduated scale is parallel with the line of the axle center of first nasal plug pipe 3 and second nasal plug pipe 4, and the directional graduated scale of first scale mark 501 and second scale mark 601 obtains the spacing distance of first nasal plug pipe 3 and second nasal plug pipe 4 through reading the numerical value of the first scale mark 501 and the directional graduated scale of second scale mark 601.

The cover plate 2 can be connected to the extension plate 15 by various feasible manners, such as gluing, screwing, fastening, etc., preferably, the cover plate 2 is provided with a detachable connection form, so that the cover plate 2 can be conveniently detached to replace the first nasal plug tube 3 and the second nasal plug tube 4, and other components.

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

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

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

In another embodiment, the second nasal prong 4 may be adjusted for movement by a second adjustment member 8 similar to the first adjustment member 7. Referring to fig. 1 to 3, the respirator connector 1 is provided with another outer edge plate and an extension plate opposite to the outer edge plate 14 and the extension plate 15. The extension plate is provided with a second connecting hole 106, and the second adjusting member 8 is connected and matched with the second connecting hole 106 and can move relative to the extension plate. The second adjusting piece 8 can also be connected with a second adjusting block 6, and the second adjusting block 6 is used for connecting and fixing the second nasal obstruction tube 4. The second adjusting block 6 is driven to move by adjusting the second adjusting piece 8, and then the second nasal plug tube 4 is driven to move.

In this embodiment, the structure of the second adjusting part 8 may be the same as the first adjusting part 7, the structure of the second adjusting block 6 may be the same as the structure of the first adjusting block 5, and the structure of the second nasal obstruction tube 4 may be the same as the structure of the first nasal obstruction tube 3, which is referred to and is not repeated.

In this embodiment, second outlet channel 104 is arranged in a manner similar to first outlet channel 103, such that second lumen 401 of second nasal plug tube 4 is always in communication with second outlet channel 104.

The material of the breathing machine 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 plastic, and the breathing machine connecting piece has good strength and rigidity and lighter weight. The materials of the first nasal obstruction tube 3 and the second nasal obstruction tube 4 can use rubber or silica gel, and are soft, so that the nasal obstruction tube can be conveniently contacted with the nose of a patient and has good comfort.

The breathing machine connecting piece 1 can also be connected with a binding belt or provided with a mounting hole of the binding belt, so that the whole breathing nasal plug 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, specifically, the first nasal plug pipe 3 and the second nasal plug pipe 4 can be connected through a pipeline to extend into the left nasal cavity and the right nasal cavity of a patient, the breathing machine is started, air or oxygen is input, 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 tube cavity 301 and the second tube cavity 401, and the patient can inhale air; after inspiration is completed, the exhaust gas exhaled by the patient is exhaled along a reverse path, and the process of one-time respiration is completed. The processes of inhaling and exhaling are repeated for a plurality of times, so as to achieve the purpose of assisting breathing.

Referring to fig. 6 to 8, in another embodiment, a top plate 16 of the connecting piece 1 of the breathing machine 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 plug tube 3 is connected with the first air outlet pipe 17, and the second nasal plug tube 4 is connected with the second air outlet pipe 18. The first nasal plug tube 4 is arranged to be of a bendable structure, and the first nasal plug tube 4 is driven to bend by the movement of the first adjusting piece 7, so that the spacing distance between the first nasal plug tube 3 and the second nasal plug tube 4 is adjusted.

Specifically, a first outlet pipe 17 and a second outlet pipe 18 are protrudingly provided on the surface of the top plate 16 facing away from the bottom plate 12. The first nasal plug tube 3 further comprises an elastic part 35 and a connecting tube 36, the elastic part 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 part 35 far away from the bottom tube 31. The connecting pipe 35 is used for connecting with the first air outlet pipe 17, and preferably is sleeved on the periphery of the first air outlet pipe 17. The elastic part 35 has elasticity, can be bent and extended, can be extended under the action of tensile force, and can be retracted to an original shape after the tensile force is relieved. The material of the elastic portion 35 may be a material having better elasticity, such as rubber, silicone, plastic, etc. The structure and arrangement of the second nasal plug tube 4 can be the same as the first nasal plug tube 3, and the detailed description is omitted here.

In one embodiment, the second nasal prong 4 can be an immovable structure, and the separation distance between the first nasal prong 3 and the second nasal prong can be adjusted by adjusting the two.

In another embodiment, the second nasal prong 4 can have the same structure as the first nasal prong 3, so that the position of the second nasal prong 4 can be adjusted by adjusting the second adjustment member 8, and the positions of the first nasal prong 3 and the second nasal prong 4 can be adjusted at the same time.

The embodiment of the application also provides a respiratory system, which comprises a breathing machine and the breathing nasal plug provided by the embodiment of the application, wherein the breathing machine is communicated with the air inlet channel of the breathing machine connecting piece of the breathing nasal plug, so that the aim of assisting the breathing of a patient is fulfilled.

The present embodiment also provides a nasal prong fitting, please refer to fig. 1 to 3, including a first adjusting member 7, a first nasal prong 3, and a second nasal prong 4. First nasal plug tube 3 and second nasal plug tube 4 set up side by side, and first adjusting part 7 is connected with first nasal plug tube 3 and/or second nasal plug tube 4. The first adjustment member 7 is used to adjust the separation distance between the first and second

nasal prong tubes

3, 4.

In this embodiment, the spacing distance between the first nasal plug tube 3 and the second nasal plug tube 4 is adjustable, so that the use of patients with different nostril intervals can be satisfied, and the comfort of the patients is improved. The first nasal plug tube 3 and the second nasal plug tube 4 can be communicated with a breathing machine to ventilate, so that the purpose of auxiliary breathing is achieved.

Further, the first adjusting member 7 is any one or combination of a connecting rod, a gear, a rack, a cam, a worm wheel and a worm.

In one embodiment, the nasal prong fitting further comprises an extension plate 15, the extension plate 15 being for connection to the ventilator attachment 1.

In this embodiment, the ventilator attachment 1 may include an inlet tube 11, a bottom plate 12, side plates 13, and a top plate 16, and an extension plate 15 is attached to the top plate 16. Alternatively, the ventilator attachment 1 comprises an inlet tube 11, a bottom plate 12, side plates 13 and top and

outer edge plates

16, 14, and an extension plate 15 is attached to the outer edge plate 14.

In one embodiment, the nasal prong fitting further comprises a peripheral plate 14, an extension plate 15 is attached to the peripheral plate 14, and the peripheral plate 14 is adapted to be connected to the ventilator attachment 1. At this point, the extension panel 15 is indirectly connected to the ventilator attachment 1 via the peripheral panel 14.

In this embodiment, the ventilator attachment 1 includes an inlet tube 11, a bottom plate 12, a side plate 13, and a top plate 16, and an outer edge plate 14 is attached to the side plate 13.

In one embodiment, the nasal plug accessory further comprises a cover plate 2, 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 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 limit distance of movement of the first nasal plug tube 3.

In this embodiment, the extension plate 15 is connected to the cover plate 2, and may be integrally formed, adhered, connected through a connecting structure, or the like. The second nasal plug tube 4 may be fixed within the second through hole 22 and may also be movable within the second through hole 22 similar to the first nasal plug tube 3.

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

In one embodiment, the extension 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 to the adjusting rod 72, the adjusting rod 72 is inserted into the first connecting hole, the first nasal obstruction tube 3 is connected to 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 plug tube 4 of this embodiment is fixed, and first adjusting part 7 adjusts first nasal plug tube 3 and removes for the separation distance of first nasal plug tube 3 and second nasal plug tube 4 is adjustable.

In another embodiment, the extension 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 to the adjusting rod 72, the adjusting rod 72 is inserted into the first connecting hole, the first nasal plug tube 3 is connected to the first adjusting block 5, the second nasal plug tube 4 is connected to 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 member 7 of the present embodiment can simultaneously adjust the first nasal plug tube 3 and the second nasal plug tube 4, so that the separation distance between the first nasal plug tube 3 and the second nasal plug tube 4 can be adjusted.

In one embodiment, the extension of the adjustment rod 72 intersects the axis of the first and second

nasal prong

3, 4.

In one embodiment, the nasal prong fitting further includes spacing indicia that mark the relative distance between the first and second

nasal prong tubes

3, 4.

In one embodiment, the nasal prong fitting further includes a graduated scale that indicates the relative distance between the first and second

nasal prong tubes

3, 4.

Compared with the respiratory nasal plug in the previous embodiment, the nasal plug fitting in the present embodiment is different in that: without the ventilator attachment 1. The nasal prong fitting of the present embodiment may form the respiratory prongs of the previous embodiments by being mounted to the ventilator connector 1.

Other structures of the nasal prong fitting of the present embodiment are substantially the same as those of the respiratory nasal prong in the previous embodiments, and reference may be made to the structure of the respiratory nasal prong described above.

The embodiment of the application also provides a respiratory system, which comprises a breathing machine, a breathing machine connecting piece and the nasal plug accessory provided by the embodiment of the application, wherein the nasal plug accessory is arranged on the breathing machine connecting piece, and the breathing machine connecting piece is connected to the breathing machine, so that the aim of assisting the breathing of a patient is fulfilled.

The present invention provides a nasal respiratory plug, a nasal plug accessory and a respiratory system, which are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the description of the above embodiments is only used to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

The breathing nasal plug is characterized by comprising a breathing machine connecting piece, a first nasal plug tube and a second nasal plug tube; the respirator 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 respirator; the first nasal plug tube is communicated with the first air outlet channel, and the second nasal plug tube is communicated with the second air outlet channel; the first nasal prong and/or the second nasal prong are movable such that a separation distance between the first nasal prong and the second nasal prong is adjustable.
The respiratory prong of claim 1, wherein the respiratory prong comprises a first adjustment member for moving the first nasal prong and/or the second nasal prong to adjust a separation distance of the first nasal prong and the second nasal prong.
The nasal prong according to claim 2, wherein the breathing machine connector comprises a cavity, a top plate is disposed on one side of the cavity, the first outlet channel and the second outlet channel are disposed on the top plate, and the inlet channel, the first outlet channel and the second outlet channel are all communicated with the cavity; the first adjusting piece drives the first nasal plug tube and/or the second nasal plug tube to move relative to the top plate.
The nasal prong according to claim 3, wherein the first adjustment member is any one or more of a combination of a linkage, a gear, a rack, a cam, a worm gear, and a worm.
The nasal prong according to claim 3, wherein the side of the chamber opposite to the top plate is a bottom plate, and the side of the chamber connecting the top plate and the side plate is a side plate; the top plate or the side plates are connected with extension plates, and the extension plates protrude relative to the surface of the top plate, which is back to the bottom plate.
The nasal respiratory plug of claim 5, wherein the nasal respiratory plug further comprises a peripheral edge plate and a cover plate, wherein the peripheral edge plate is connected to one side of the side plate facing away from the chamber or the end of the top plate, the extension direction of the peripheral edge plate is parallel to the extension direction of the top plate, and the extension plate is connected to the peripheral edge plate; the cover plate is connected to one end, far away from the top plate, of the extension plate.
The nasal prong according to claim 5 or 6, wherein the first adjustment member is movably connected to the top plate or the extension plate and to the first prong tube to move the first prong tube.
The nasal prong according to claim 6, wherein the first adjustment member is movably coupled to the outer edge plate or the cover plate and to the first prong tube to move the first prong tube.
The nasal prong according to claim 7, wherein the extension plate has a first connecting hole, the first adjustment member comprises an adjustment rod and a linkage block connected to the adjustment rod, the adjustment rod is inserted into the first connecting hole, the first prong tube is connected to a first adjustment block cooperating with the linkage block, and the adjustment rod drives the first adjustment block to move relative to the second prong tube via the linkage block.
The respiratory nasal prong of claim 9, wherein an extension of the adjustment lever intersects an axis of the first nasal prong and the second nasal prong.
The nasal prong according to claim 6, wherein the cover plate of the nasal prong is provided with a first through hole and a second through hole, the first nasal prong tube extends through the first through hole, the second nasal prong tube extends through the second through hole, and a diameter of the first through hole is not less than a limit distance for the movement of the first nasal prong tube.
The nasal prong according to claim 9, wherein the first adjustment block is disposed against the cover plate to limit axial movement of the first prong.
The respiratory nasal prong of claim 1, wherein the respiratory nasal prong further comprises spacing indicia that mark a relative distance between the first nasal prong tube and the second nasal prong tube.
The respiratory nasal prong of claim 1, wherein the respiratory nasal prong further comprises a graduated scale indicating a relative distance between the first nasal prong tube and the second nasal prong tube.
The nasal plug according to claim 1, wherein the first nasal plug tube and the second nasal plug tube respectively comprise a bottom tube, a middle tube and a top tube which are sequentially connected, the bottom tube is communicated with the first air outlet channel, the diameter of the periphery of the middle tube is gradually reduced from the end connected with the bottom tube to the end connected with the top tube, and the diameter of the periphery of the top tube is gradually increased from the end connected with the middle tube to the end far away from the middle tube.
The nasal plug according to claim 3, wherein one end of each of the first nasal plug tube and the second nasal plug tube is tightly 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 first air outlet channel is always covered by the projections of the first nasal plug tube and the second nasal plug tube on the top plate at any position where the first nasal plug tube and/or the second nasal plug tube move.
The nasal prong according to claim 16, wherein the end of the bottom tube connected to the top plate is further provided with a rim protruding relative to the outer circumferential surface of the bottom tube, the rim being configured to limit the displacement of the first nasal prong in the axial direction thereof.
The nasal plug according to claim 3, wherein the top plate has a first air outlet tube, the first air outlet tube surrounds the first air outlet channel, the first nasal plug tube is connected to the first air outlet tube, the first nasal plug tube is a bendable structure, and the first adjusting member moves to bend the first nasal plug tube, so as to adjust the distance between the first nasal plug tube and the second nasal plug tube.
The nasal prong according to any one of claims 1 to 18, wherein the nasal prong is further provided with a position limiting structure that limits a range of movement of the first prong tube.
The nasal prong according to any one of claims 1 to 18, wherein the nasal prong is further provided with a position locking structure for fixing the first prong tube at any position.
The nasal prong according to any one of claims 2 to 18, wherein the nasal prong further comprises a second adjustment member for moving the second nasal prong to cooperate with the first adjustment member to adjust a separation distance between the first and second nasal prong.
A nasal prong accessory comprising a first adjustment member, a first nasal prong and a second nasal prong; the first nasal plug tube and the second nasal plug tube are arranged side by side, and the first adjusting piece is connected with the first nasal plug tube and/or the second nasal plug tube; the first adjusting piece is used for adjusting the spacing distance between the first nasal plug tube and the second nasal plug tube.
The nasal prong fitting of claim 22, wherein said first adjustment member is any one or combination of a linkage, a gear, a rack, a cam, a worm gear, and a worm.
The nasal prong fitting of claim 22, further comprising an extension plate for connecting to a ventilator connector.
The nasal prong fitting of claim 24, further comprising a peripheral edge plate, wherein the extension plate is connected to the peripheral edge plate, and wherein the peripheral edge plate is configured to connect to the ventilator connector.
The nasal prong fitting of claim 24 or claim 25, further comprising a cover plate coupled to the extension plate, wherein the cover plate defines a first through hole and a second through hole, wherein the first nasal prong is sleeved within the first through hole, wherein the second nasal prong is sleeved within the second through hole, and wherein a diameter of the first through hole is not less than a limit distance for movement of the first nasal prong.
The nasal prong fitting of claim 24, wherein said first adjustment member is movably coupled to said extension plate and to said first prong tube to move said first prong tube.
The nasal prong fitting of claim 26, wherein said first adjustment member is movably coupled to said outer edge plate or said cover plate and to said first prong tube to move said first prong tube.
The nasal prong assembly of claim 27, wherein the extension plate has a first connecting hole, the first adjustment member comprises an adjustment rod and a linkage block connected to the adjustment rod, the adjustment rod is inserted into the first connecting hole, the first prong tube is connected to a first adjustment block, and the adjustment rod is adjusted such that the linkage block drives the first adjustment block to move relative to the second prong tube.
The nasal prong assembly of claim 27, wherein the extension plate has a first connecting hole, the first adjustment member comprises an adjustment rod and a linkage block connected to the adjustment rod, the adjustment rod is inserted into the first connecting hole, the first nasal prong tube is connected to a first adjustment block, the second nasal prong tube is connected to a second adjustment block, and the adjustment rod is adjusted such that the linkage block drives the first adjustment block and the second adjustment block to move relative to each other.
The nasal prong fitting of claim 29 or claim 30, wherein an extension of said adjustment lever intersects an axis of said first and second nasal prong.
The nasal prong fitting of claim 22, further comprising spacing indicia marking a relative distance between the first and second nasal prong tubes.
The nasal prong fitting of claim 22, further comprising a graduated scale indicating a relative distance between the first and second nasal prong tubes.
A respiratory system comprising a ventilator and a nasal respiratory plug according to any one of claims 1 to 21, the ventilator being in communication with an air inlet passage of a ventilator connector of the nasal respiratory plug.
A respiratory system comprising a ventilator, a ventilator connector to which the nasal prong fitting is mounted, and a nasal prong fitting as claimed in any one of claims 22 to 33 connected to a ventilator.