CN109966617B

CN109966617B - Breathing machine joint and breathing machine

Info

Publication number: CN109966617B
Application number: CN201910204449.2A
Authority: CN
Inventors: 颜辉; 刘建军; 刘金伟
Original assignee: Xiaoniu Technology Hebei Co ltd
Current assignee: Xiaoniu Technology Hebei Co ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2021-07-02
Anticipated expiration: 2039-03-18
Also published as: CN109966617A

Abstract

The invention discloses a breathing machine connector and a breathing machine, wherein the breathing machine connector is used for connecting a main machine of the breathing machine and an external guide pipe. The breathing machine connects includes: outer tube coupling, insert and sleeve pipe. The outer pipe joint has first end and second end, and the first end of outer pipe joint is used for connecting the breathing machine host computer. The insert is used for setting up and detecting components and parts, and the insert is established on the second end of outer tube coupling. The sleeve is used for connecting an external guide pipe and is connected to the second end of the outer pipe joint to limit the insert. The respirator joint provided by the embodiment of the invention can be used for respectively processing the outer pipe joint, the insert and the sleeve, and then assembling and fixing the outer pipe joint, the insert and the sleeve after processing, all parts are easy to process, the integrity is good after connection, the appearance is flat, and air and oxygen mixed gas can be smoothly introduced and heated to a proper temperature. The detection components are arranged on the insert in a centralized manner, so that the processing is easy, and the space is saved.

Description

Breathing machine joint and breathing machine

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a respirator connector and a respirator.

Background

In a nasal high flow rate oxygen therapy (HFNC) device of a medical apparatus, two air paths of air and oxygen are generally provided, and the two gases respectively flow out from the respective air paths according to a certain proportion and finally are merged into a mixed gas with a certain oxygen concentration. The prepared mixed gas is supplied to a patient through an external breathing pipeline, so that a joint is needed to connect the main body equipment with the external breathing pipeline.

Most of the current joints can be divided into two types in the market, the first type is that a contact pin and a sensor are directly embedded in a pipe joint and are integrated with the joint to form a built-in integrated joint assembly, but the processing difficulty is high, and the product yield is low. The second type is that a layer of plastic is wrapped outside the contact pin and is arranged in the connector, then a hole is formed outside the connector, the sensor is arranged in the connector and then is covered, and the sensor is covered on the hole.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the respirator joint which is easy to process and high in yield.

The invention also aims to provide a respirator with the respirator connector.

According to the embodiment of the invention, the respirator connector is used for connecting a main machine of a respirator and an external guide pipe, and comprises: the outer pipe joint is provided with a first end and a second end, and the first end of the outer pipe joint is used for connecting the main machine of the respirator; the insert is used for arranging a detection component and is arranged at the second end of the outer pipe joint; a sleeve for connecting to the external lead, the sleeve being connected to the second end of the outer coupling to restrain the insert.

According to the respirator connector provided by the embodiment of the invention, the outer pipe connector, the insert and the sleeve are respectively processed, and finally the complete respirator connector is combined, and the processing manufacturability of each part is good. Especially, the detection components are intensively arranged on the insert, so that the processing is easy, the installation is convenient, the space is saved, and the qualification rate of finished products is greatly improved. The sleeve pipe can form spacingly to the mold insert after being connected with outer tube end fitting, makes the detection components and parts job stabilization when detecting, and the contact is better, and connects good, the outward appearance is succinct as the breathing machine.

According to the respirator connector disclosed by the embodiment of the invention, part of the pipe wall of the outer pipe connector protrudes outwards to form a mounting table, the insert is arranged on the mounting table, and part of the pipe wall of the sleeve protrudes outwards to form a pressing table, and the pressing table is connected to the mounting table.

According to a further embodiment of the present invention, a notch is formed on a tube wall of the second end of the outer tube joint, a portion of the tube wall of the second end of the outer tube joint, excluding the notch, is a first arc-shaped piece, and the mounting platform is arranged on a tube wall of the outer tube joint, which is located at the notch and faces the first end; and one end connected with the outer pipe joint is provided with a second arc-shaped sheet formed on one part of the pipe wall of the sleeve, a pressing table formed on the other part of the pipe wall, the second arc-shaped sheet is sleeved on the first arc-shaped sheet, and the pressing table is in butt joint with the mounting table along the axial direction of the respirator joint.

According to an optional embodiment of the invention, two convex strips are arranged on the peripheral wall of the sleeve and positioned in the circumferential direction of the pressing table, the two convex strips are respectively connected with the edges of the two circumferential ends of the first arc-shaped piece, and a contact surface between each convex strip and the first arc-shaped piece is a step surface.

According to the optional embodiment of the invention, the outer edge of the mounting table is provided with an outward flange, and the end face of the pressing table is provided with an inward flange attached to the inner side of the outward flange.

According to the respirator connector disclosed by the embodiment of the invention, the connecting structure adopted by the sleeve and the outer pipe connector is at least one of glue connection, snap connection or interference connection.

According to a further embodiment of the invention, the first arc-shaped piece is sleeved on the outer side of the second arc-shaped piece, a clamping protrusion is arranged on the inner wall of the outer pipe joint, and a clamping piece matched with the clamping protrusion is arranged on the second arc-shaped piece.

According to the respirator connector disclosed by the embodiment of the invention, the second end pipe wall of the outer pipe connector is provided with a mounting groove, and at least part of the insert is matched in the mounting groove.

According to an alternative embodiment of the invention, the insert comprises an axial plate fitted in the mounting groove and a radial plate extending from one end of the axial plate towards the axis of the ventilator connector, the detection element being provided on the radial plate.

According to the respirator connector disclosed by the embodiment of the invention, the detection component comprises a plurality of contact pins and a temperature sensor, and at least two contact pins are connected with the temperature sensor.

According to the respirator connector disclosed by the embodiment of the invention, the outer pipe connector comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe, the outer pipe is connected with the inner pipe through a connecting ring, the sleeve is connected with the connecting ring, and the inner pipe is used for being connected with a main machine of the respirator.

According to an alternative embodiment of the invention, the tube surface of the inner tube for cooperation with the ventilator main unit is tapered.

According to the respirator connector disclosed by the invention, the pipe surface of the sleeve, which is used for being matched with the external guide pipe, is provided with a taper.

According to the respirator connector provided by the embodiment of the invention, the heating element is arranged in the respirator connector.

A ventilator according to an embodiment of the present invention includes: the main machine of the respirator is provided with a main machine port; the breathing machine joint is the breathing machine joint, and the breathing machine joint is matched on the main machine port; an external lead tube connected to the ventilator head.

According to the respirator provided by the embodiment of the invention, the mixed gas of oxygen and air in the respirator main machine can be stably guided into the external guide pipe through the respirator joint, the gas transmission is stable, the connection and installation of the respirator joint are easy, and the air tightness is good after the connection.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of a ventilator adapter according to an embodiment of the present invention.

FIG. 2 is a longitudinal cross-sectional view through an insert of a ventilator adapter according to one embodiment of the present invention.

FIG. 3 is a longitudinal cross-sectional view of a ventilator adapter of one embodiment of the present invention through the face of the clasp.

Fig. 4 is a schematic structural diagram of an insert and a detection component according to an embodiment of the present invention.

Fig. 5 is a longitudinal cross-sectional view of a cannula according to one embodiment of the invention.

Fig. 6 is a schematic structural diagram of a main unit, a connector and an external guide tube of a ventilator according to an embodiment of the present invention.

Reference numerals:

a ventilator connector 100;

an outer pipe joint 1;

an outer tube 11; a mounting table 111; a notch 112; a first arc piece 113; a flange 114; a mounting groove 115;

an inner tube 12; a snap projection 121;

a connecting ring 13;

an insert 2; an axial plate 21; a radial plate 22;

a sleeve 3; a second arc piece 31; a convex strip 311; a press table 32; an inner flange 321; a fastener 33; a locking pin 331; a fitting groove 332;

a detection component 4; a pin 41; a temperature sensor 42;

a ventilator main unit 200;

an outer lead 300.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A ventilator fitting 100 according to an embodiment of the present invention is described below with reference to fig. 1-6.

According to an embodiment of the invention, as shown in fig. 6, the ventilator connector 100 is used for connecting a ventilator main unit 200 and an external lead 300.

As shown in fig. 1-3, the ventilator adapter 100 includes: outer pipe joint 1, insert 2 and sleeve 3.

As shown in fig. 1, 2 and 6, the outer pipe joint 1 has a first end and a second end, and the first end of the outer pipe joint 1 is used for connecting the ventilator host 200.

As shown in fig. 1 and 4, the insert 2 is used for mounting the detection component 4, and the insert 2 is disposed at the second end of the outer tube end fitting 1.

As shown in fig. 1, 5 and 6, a sleeve 3 is used to connect an external lead pipe 300, and the sleeve 3 is connected to a second end of the outer pipe joint 1 to restrain the insert 2.

The respirator connector 100 of the embodiment of the invention mainly comprises three parts: outer pipe joint 1, insert 2 and sleeve 3. The three parts are processed respectively and finally combined to form the complete respirator connector 100, and the parts are convenient to process and good in processing manufacturability.

Wherein, because detect components and parts 4 and all concentrate on setting up on mold insert 2 for mold insert 2 and detection components and parts 4 are comparatively easy when processing with integrated the setting, simple to operate has saved and has detected components and parts 4 and arrange the inside gaseous space of circulation at breathing machine joint 100.

When assembling the respirator joint 100, only the sleeve 3 and the insert 2 provided with the detection component 4 are required to be installed at the second end of the outer pipe joint 1, and the sleeve 3 is used for limiting the insert 2, so that the main body part of the respirator joint 100 can be formed, the assembly is simple, and the qualification rate of the assembled respirator joint 100 is greatly improved.

In addition, because sleeve pipe 3 can form spacingly to mold insert 2 after connecting with outer tube joint 1, make mold insert 2 difficult for rocking for outer tube joint 1, the detection components and parts 4 of establishing in mold insert 2 can be better with the contact of outside line, and detection components and parts 4 job stabilization when detecting, breathing machine joint 100 wholeness is good, the outward appearance is succinct.

It can be understood that the detection component 4 of the present invention is disposed on the insert 2 without occupying internal airflow passage space, as compared to the prior art in which the detection component is disposed in the airflow passage of the ventilator connector 100. Compared with the prior art that the detection devices are arranged at a plurality of positions inside and outside the respirator joint 100, the respirator joint 100 is simpler in appearance and better in integrity.

The transverse cross-sectional shape of the ventilator adapter 100 of the present invention may be circular or non-circular, or may be a portion of which is circular and another portion of which is non-circular, and is not limited herein.

The ventilator connector 100 of the present invention has a gas flow channel inside for the mixed gas of air and oxygen derived from the ventilator to flow through, and the central point connecting line of the flow cross section of the gas flow channel is the axis of the ventilator connector 100, that is, the inner cross section of the ventilator connector 100 is not limited to be circular.

Here, the "outer" and "inner" in the present invention are: the end facing the axis is inner and the end away from the axis is outer.

Hereinafter, the "air" and "oxygen" mixed gas, collectively referred to as "air-oxygen mixed gas", refer to air-oxygen mixed gas having a certain oxygen concentration and ratio.

In some embodiments of the present invention, as shown in fig. 1, a portion of the wall of the outer pipe joint 1 protrudes outward to form a mounting table 111, the insert 2 is provided on the mounting table 111, a portion of the wall of the sleeve 3 protrudes outward to form a pressing table 32, and the pressing table 32 is connected to the mounting table 111. The mounting table 111 provides support for the insert 2 and the sleeve 3, so that after the pressing table 32 is connected with the mounting table 111, the insert 2 can be just limited on the mounting table 111, and the insert 2 is not easy to shake. The installation platform 111 is arranged to protrude out of the outer pipe joint 1, and the corresponding pressing platform 32 protrudes out of the pipe wall of the sleeve 3, so that the insert 2 does not occupy the gas flow channel inside the ventilator joint 100 at the position where the insert is located, and therefore, the insert 2 is convenient to install, saves space, and is smooth in air-oxygen mixed gas flowing through the gas flow channel and large in flow cross section area.

Optionally, as shown in fig. 1, a notch 112 is formed on a wall of the second end of the outer pipe joint 1, a portion of the wall of the second end of the outer pipe joint 1, excluding the notch 112, is a first arc-shaped piece 113, and a mounting platform 111 is disposed on a wall of the outer pipe joint 1, which is located at the notch 112 and faces the first end.

Correspondingly, on one end connected with the outer pipe joint 1, a part of pipe wall of the sleeve 3 is formed into a second arc-shaped sheet 31, the other part of pipe wall is formed into a pressing platform 32, and the second arc-shaped sheet 31 is sleeved on the first arc-shaped sheet 113.

A notch 112 is arranged on the outer pipe joint 1, and an installation table 112 is arranged near the notch 112, so that the insert 2 is convenient to install on one hand, and a visual effect is formed; on the other hand, the positioning and limiting device is also convenient for the butt joint installation of the pressing table 32 and the installation table 111, so that the pressing table 32, the insert 2 and the installation table 111 are convenient to install and good in installation effect.

Advantageously, the platen 32 interfaces with the mounting block 111 along the axis of the ventilator attachment 100. The axial abutment increases the pressing and limiting action of the pressing table 32 and the mounting table 111 on the insert 2 in the middle. Of course, in other examples, the abutment between the pressing platform 32 and the mounting platform 111 may also be along the radial direction of the ventilator connector 100, that is, a part of the side of the pressing platform 32 covers the outside of the mounting platform 111, and is not limited herein.

Optionally, the second arc-shaped piece 31 is sleeved in the first arc-shaped piece 113, and the pressing platform 32 is inserted into the notch 112 and then is in butt joint with the mounting platform 111. The two arc-shaped pieces which are sleeved with each other increase the radial matching degree between the outer pipe joint 1 and the sleeve 3, and the sealing effect and the positioning effect are increased to a certain extent. Of course, the second arc-shaped piece 31 can also be sleeved outside the first arc-shaped piece 113, and different sleeving sequence and sleeving structure can be selected according to specific needs.

Advantageously, as shown in fig. 1, two convex strips 311 are arranged on the outer circumferential wall of the sleeve 3 at the circumferential direction of the pressing platform 32, and the two convex strips 311 are respectively connected with the circumferential two end edges of the first arc-shaped piece 113. The convex strip 311 forms a limiting effect for the installation of the pressing platform 32 and the installation platform 111, so that the local strength between the pressing platform 32 and the second arc-shaped piece 31 is increased, and the circumferential joint between the second arc-shaped piece 31 and the first arc-shaped piece 113 is tighter.

Optionally, a contact surface between each protruding strip 311 and the first arc-shaped piece 113 is a step surface. The matching of the step surfaces can enhance the matching air tightness between the first arc-shaped sheets 113 and the convex strips 311, and prevent the air-oxygen mixture gas from leaking from the gaps.

In some examples, as shown in fig. 1, the outer edge of the mounting platform 111 is provided with a flange 114, and the end surface of the pressing platform 32 is provided with an inner flange 321 attached to the inner side of the flange 114. The outer flange 114 and the inner flange 321 are buckled to form axial sealing, so that the mounting table 111 and the pressing table 32 can be conveniently in axial butt joint, meanwhile, the integrity of the respirator joint 100 is improved, the appearance is smooth, and the air tightness is good.

Optionally, the outer edge of the pressing platform 32 near the inner flange 321 is flush with the outer flange 114 of the mounting platform 111, which is beneficial to further enhance the flatness of the joint.

In some embodiments of the present invention, the connection structure of the sleeve 3 and the outer pipe joint 1 is a glue joint. I.e. a fixed glue is formed between the sleeve 3 and the outer pipe fitting 1.

Or the sleeve 3 and the outer pipe joint 1 adopt a snap connection structure. The buckle connection is convenient to disassemble and assemble.

Or the sleeve 3 and the outer pipe joint 1 are in interference connection by adopting a connection structure. The air-tightness is good because the air-tightness is not easy to be separated after the interference fit.

Or, the connection structure of the sleeve 3 and the outer pipe joint 1 is any two combinations of glue joint, buckle joint and interference joint, so long as the final connection between the sleeve 3 and the outer pipe joint 1 is ensured to have good air tightness and is not easy to disintegrate in the use process.

In some embodiments of the present invention, as shown in fig. 1 and 3, the first arc-shaped piece 113 is sleeved on the outer side of the second arc-shaped piece 31, the inner wall of the outer pipe joint 1 is provided with a locking protrusion 121, and the second arc-shaped piece 31 is provided with a locking member 33 engaged with the locking protrusion 121. After the fastener 33 is matched with the clamping protrusion 121, the sleeve 3 and the inner part of the outer pipe joint 1 form stable clamping matching, and a better air tightness is formed at the matching part, so that air and oxygen mixed gas is not easy to leak when flowing through an airflow circulation channel in the respirator joint 100.

Alternatively, as shown in fig. 5, the latch 33 extends downward from the bottom of the second arc-shaped piece 31, the bottom of the latch 33 has a latch 331 extending outward in the radial direction, the outer side wall of the latch 33 has a fitting groove 332, the latch 331 fits in the bottom of the latch 121, and the inner end of the latch 121 fits in the fitting groove 332, so that a double-latch fit is formed, and the latch has excellent fixing performance and good air tightness.

Advantageously, as shown in fig. 5, the wall thickness of the latch 33 from the second arc-shaped piece 31 to the wall surface between the latch 331 is gradually reduced, and a fitting groove 332 is formed between the upper portion of the latch 331 and the wall surface. In this way, the engagement between the locking member 33 and the locking protrusion 121 is facilitated. The fastener 33 also has a certain elastic deformation force, so that the material is saved.

Optionally, the locking protrusions 121 and the locking members 33 are arranged in a one-to-one correspondence, and the plurality of locking protrusions 121 are uniformly arranged on the inner wall of the outer pipe joint 1. The stability of circumferential connection is improved when the sleeve 3 and the outer pipe joint 1 are connected inside.

In some embodiments of the present invention, as shown in fig. 2, a mounting groove 115 is provided on the wall of the second end tube of the outer tube joint 1, and at least a portion of the insert 2 is fitted in the mounting groove 115. The mounting slot 115 receives a portion of the insert 2, provides a fixed mounting location for the insert 2, and facilitates mating of the detection component 4 on the insert 2 with other circuitry to form an electrical connection.

Alternatively, as shown in fig. 2 and 4, the insert 2 includes an axial plate 21 and a radial plate 22, the axial plate 21 is fitted in the mounting groove 115, the radial plate 22 extends from one end of the axial plate 21 toward the axis of the ventilator connector 100, and the detection component 4 is disposed on the radial plate 22. The L-shaped insert 2 increases the stability of assembly on the one hand, and increases the bearing table and space required for assembling the detection component 4 on the other hand.

The heating element is coiled in the internal gas circulation channel in the respirator connector 100 and can be a PTC heating device or a plurality of circles of resistance wires, and the heating element can heat the air-oxygen mixed gas passing through the respirator connector 100 to a temperature suitable for human body inhalation, such as 25-37 ℃.

As shown in fig. 4, the detecting component 4 of the present invention includes a plurality of pins 41 and a temperature sensor 42, where at least two pins 41 are connected to the temperature sensor 42. The temperature sensor 42 is used to detect the temperature of the gas in the internal flow channel, or the temperature sensor 42 directly detects the temperature of the heating element and transmits it to the external monitoring control terminal through the contact pin 41.

In some embodiments of the present invention, as shown in fig. 2 and 3, the outer pipe joint 1 includes an outer pipe 11 and an inner pipe 12, the inner pipe 12 is disposed inside the outer pipe 11, and the outer pipe 11 and the inner pipe 12 are connected by a connection ring 13. Thus, a slot is formed between the tube walls of the outer tube 11 and the inner tube 12, which is convenient for connecting with the respirator 200.

As shown in fig. 3, the sleeve 3 is connected to the connection ring 13. The contact has been formed between the diapire of the roof of go-between 13 and second arc piece 31, and go-between 13 has formed better supporting effect and limiting displacement to second arc piece 31 on the one hand, and on the other hand has increased the inside gas tightness after each parts assembly.

Advantageously, gluing may be performed between the connection ring 13 and the second arc 31, further enhancing the tightness.

Optionally, the outer wall of the outer tube joint 1 corresponding to the connection ring 13 forms a tapered section, that is, the outer tube joint 1 forms a tapered section from a first end to a second end, the inner wall of the second end of the outer tube joint 1 contacts with the inner wall of the sleeve 3, and the inner wall of the first end of the outer tube joint 1 forms a locking protrusion 121 to cooperate with the locking member 33.

In some examples, the inner tube 12 is used to connect to the main ventilator 200, that is, the inner tube 12 is inserted into the interface of the main ventilator 200, and the wall of the interface falls into the slot, so that the air-oxygen mixture is smoothly introduced into the main ventilator 100.

Of course, the inner wall of the inner tube 12 of the ventilator adapter 100 may be fitted on the outer wall of the interface to form a connection, and is not particularly limited herein.

Advantageously, the face of the inner tube 12 that is intended to mate with the ventilator host 200 is tapered. The inner tube 12 can be conveniently inserted into or pulled out from the main machine 200 of the respirator.

Advantageously, the face of the sleeve 3 intended to cooperate with the external lead 300 is tapered. The sleeve 3 is convenient to insert and pull out from the external guide pipe 300.

Optionally, the slot is in communication with the mounting slot 115. Thus, the socket can be provided with a circuit electrically connected to the pins 41 of the mounting groove 115. Alternatively, the pins 41 extend downward through the slots and are electrically connected to corresponding pins on the ventilator host 200.

A ventilator according to an embodiment of the present invention, as shown in fig. 6, includes: a main respirator 200, a respirator joint 100 and an external guide pipe 300.

The ventilator main unit 200 has a main unit port through which the air-oxygen mixture can be introduced and which forms a certain interface.

The breathing machine connects 100 and is above-mentioned breathing machine connects 100, and its structure is no longer described any more, and breathing machine connects 100 cooperation on the host computer mouth, and outside guide tube 300 is connected on breathing machine connects 100, and breathing machine connects 100 and has connected breathing machine host computer 200 and outside guide tube 300, and exports empty oxygen gas mixture.

The respirator of the embodiment of the invention can stably lead the mixed air-oxygen mixed gas in the main machine 200 of the respirator to the external guide pipe 300 through the respirator joint 100, the gas transmission is stable, the connection and the installation of the respirator joint 100 are easy, the air tightness after the joint is good, and in addition, the air-oxygen mixed gas passing through the respirator joint 100 can be heated to the temperature suitable for the breathing of the human body.

To better understand the aspects of the embodiments of the present invention, the structure of the ventilator adapter 100 and ventilator in one embodiment of the present invention is described below in conjunction with fig. 1-6.

As shown in fig. 1-6, a ventilator adapter 100 comprises: the breathing machine connector 100 comprises an outer pipe connector 1, an insert 2, a sleeve 3, a detection component 4 and a heating element (not shown), wherein a gas circulation channel is formed inside the breathing machine connector 100, and the heating element is arranged on the inner wall of the breathing machine connector 100 and is used for heating air-oxygen mixed gas in the gas circulation channel. The detection component 4 includes a pin 41 and a temperature sensor 42 for detecting the temperature of the air-oxygen mixture gas.

As shown in fig. 1, 2 and 6, the outer pipe joint 1 has a first end and a second end, and the first end of the outer pipe joint 1 is used for connecting the ventilator host 200. As shown in fig. 3, the outer pipe joint 1 includes an outer pipe 11, an inner pipe 12, and a connecting ring 13, and the outer pipe 11 and the inner pipe 12 are connected by the connecting ring 13. The second end of the outer pipe fitting 1 is formed with a notch 112. A step surface is formed on the peripheral wall of the notch 112. The portion of the tube wall corresponding to the notch 112 protrudes outward to form a mounting platform 111, and the portion of the tube wall at the second end excluding the notch 112 is a first arc-shaped piece 113. The outer edge of the mounting platform 111 is formed upwardly with a flange 114. The second end wall of the outer pipe joint 1 is provided with an installation groove 115 along the axial direction. The inner tube 12 has a snap projection 121 formed in the wall thereof projecting inwardly.

As shown in fig. 1 and 4, the insert 2 is provided with a pin 41 and a temperature sensor 42. The insert 2 comprises an axial plate 21 and a radial plate 22, the axial plate 21 being fitted in a mounting groove 115, the radial plate 22 extending from one end of the axial plate 21 towards the axis of the ventilator attachment 100, the axial plate 21 being arranged in the mounting groove 115, the bottom surface of the radial plate 22 being in contact with the upper surface of the mounting table 111. A plurality of pins 41 are provided through the axial plate 21, and a temperature sensor 42 is provided on the radial plate 22, the temperature sensor 42 being connected to two of the pins 41.

As shown in fig. 1, 5, and 6, the sleeve 3 is used to connect an external lead 300. A sleeve 3 is attached to the second end of the outer pipe fitting 1 to restrain the insert 2. The sleeve 3 comprises a second arc-shaped sheet 31, a pressing platform 32 and a fastener 33. Part of the wall of the sleeve 3 protrudes outwards to form a pressure table 32, and the lower surface of the pressure table 32 contacts with the upper surface of the radial plate 22 to form an axial limit. The outer edge of the pressing platform 32 forms an inward flange 321 downwards, and the inward flange 321 and the outward flange 114 form a snap fit. Two convex strips 311 are arranged on the circumferential direction of the pressing platform 32, and the convex strips 311 are matched with the step surface. The pipe wall of the sleeve 3 except the pressing platform 32 forms a second arc-shaped sheet 31, and the second arc-shaped sheet 31 is sleeved in the first arc-shaped sheet 113. The bottom of the second arc-shaped piece 31 extends downwards to form a fastener 33. The locking member 33 includes a locking leg 331 and a fitting groove 332, the locking leg 331 is located at an end of the locking member 33, and the fitting groove 332 is formed between the locking leg 331 and a wall surface of the locking member 33. The fitting groove 332 is fitted with the catching protrusion 121, and the catching leg 331 is caught at the bottom of the catching protrusion 121. In addition, in order to enhance the sealing property and the connection stability, the adhesion is performed between the surfaces of the sleeve 3 and the outer joint 1 which are in contact with each other.

As shown in fig. 6, a ventilator comprises: a main respirator 200, a respirator joint 100 and an external guide pipe 300.

The ventilator main unit 200 has a main unit port through which the air-oxygen mixture can be introduced and which forms a certain interface. The inner tube 12 of the ventilator connector 100 is inserted into the main port, and the outer lead tube 300 is inserted into the ventilator connector 100.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "thickness," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Four pins 41 are shown in fig. 1, two snaps 33 and two tabs 121 are shown in fig. 3 for illustrative purposes, but it will be apparent to one of ordinary skill after reading the above disclosure that the present disclosure may be applied to other numbers of component embodiments and still fall within the scope of the present disclosure.

The ventilator connector and other components of the ventilator according to embodiments of the present invention, such as the arrangement of the heating elements inside the ventilator connector 100, the heating principle of the heating elements, the principle of temperature measurement by the temperature sensor 42, and the structure of the electrical connection are well known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a breathing machine connects, breathing machine connects and is used for connecting breathing machine host computer and outside guide pipe, its characterized in that, breathing machine connects and includes:

the outer pipe joint is provided with a first end and a second end, and the first end of the outer pipe joint is used for connecting the main machine of the respirator; part of the pipe wall of the outer pipe joint protrudes outwards to form an installation platform, a notch is formed in the pipe wall of the second end of the outer pipe joint, the part of the pipe wall of the second end of the outer pipe joint, excluding the notch, is a first arc-shaped sheet, and the installation platform is arranged on the pipe wall, located at the notch, of the outer pipe joint and facing the first end;

the insert is used for arranging a detection component, is arranged at the second end of the outer pipe joint and is arranged on the mounting table;

the sleeve is used for being connected with the external guide pipe, the sleeve is connected to the second end of the outer pipe joint to limit the insert, one end of the sleeve connected with the outer pipe joint is provided with a second arc-shaped sheet, the other part of the pipe wall of the sleeve is provided with a pressing table, the second arc-shaped sheet is sleeved on the first arc-shaped sheet, and the pressing table is in butt joint with the mounting table along the axial direction of the respirator joint.

2. The connector of claim 1, wherein two protruding strips are disposed on the outer peripheral wall of the sleeve in the circumferential direction of the pressing table, the two protruding strips are respectively connected to the edges of the two circumferential ends of the first arc-shaped piece, and a contact surface between each protruding strip and the first arc-shaped piece is a step surface.

3. The respirator connector according to claim 1, wherein an outer flange is arranged on the outer edge of the mounting table, and an inner flange attached to the inner side of the outer flange is arranged on the end face of the pressing table.

4. The connector of claim 1, wherein the connection structure of the sleeve and the outer tube connector is at least one of a glue connection, a snap connection or an interference connection.

5. The respirator connector according to claim 1, wherein the first arc-shaped piece is sleeved on the outer side of the second arc-shaped piece, a clamping protrusion is arranged on the inner wall of the outer tube connector, and a fastener matched with the clamping protrusion is arranged on the second arc-shaped piece.

6. The connector of claim 1, wherein a mounting groove is formed on a wall of the second end of the outer tube connector, and at least a portion of the insert is fitted in the mounting groove.

7. The ventilator adapter of claim 6 wherein said insert comprises an axial plate and a radial plate, said axial plate fitting within said mounting slot, said radial plate extending from an end of said axial plate toward an axis of said ventilator adapter, said detection element being provided on said radial plate.

8. The connector of any one of claims 1-7, wherein the detection component comprises a plurality of pins and a temperature sensor, and at least two pins are connected to the temperature sensor.

9. The connector of any one of claims 1-7, wherein the outer tube connector comprises an outer tube and an inner tube, the inner tube is disposed in the outer tube, the outer tube is connected to the inner tube through a connecting ring, the sleeve is connected to the connecting ring, and the inner tube is configured to be connected to the ventilator main unit.

10. The ventilator adapter of claim 9 wherein said inner tube has a tapered surface for mating with said ventilator main body.

11. The ventilator adapter of any one of claims 1-7 wherein a face of said sleeve for mating with said external lead is tapered.

12. A ventilator connection according to any one of claims 1-7 wherein a heating element is provided within said ventilator connection.

13. A ventilator, comprising:

the main machine of the respirator is provided with a main machine port;

a ventilator connector according to any one of claims 1-12 fitted over the main port;

an external lead tube connected to the ventilator head.