阅读说明：本技术 一种同轴加热呼吸管路 (Coaxial heating breathing pipeline ) 是由 吴玉平 刘瑞花 于 2019-10-21 设计创作，主要内容包括：本发明涉及一种同轴加热呼吸管路,包括进气管、呼气管、第一连接件以及第二连接件,进气管同轴心穿设呼气管管,第一连接件同时连接进气管以及呼气管的同一端,第二连接件同时连接进气管以及呼气管的另一端,其中进气管外壁绕设有加热丝。本发明的同轴加热呼吸管路同轴心设置有进气管以及呼气管,其中进气管上绕设有加热丝,通过加热丝对输送给患者的温湿气体进行加热实现温度补偿,保证进气管内不产生冷凝水,同时进气管的散热还能对呼气管内气体进行加热,实现对呼气管进行温度补偿,减少呼气管冷凝水的产生,使得同轴加热呼吸管路既能保证进气管不产生冷凝水,提高通气质量,又同时能减少呼气管冷凝水的产生,减少了临床护理工作量。(The invention relates to a coaxial heating breathing pipeline which comprises an air inlet pipe, an expiration pipe, a first connecting piece and a second connecting piece, wherein the air inlet pipe coaxially penetrates through the expiration pipe, the first connecting piece is simultaneously connected with the same end of the air inlet pipe and the same end of the expiration pipe, the second connecting piece is simultaneously connected with the other end of the air inlet pipe and the other end of the expiration pipe, and a heating wire is wound on the outer wall of the air inlet pipe. The coaxial heating breathing pipeline is provided with the air inlet pipe and the expiratory pipe coaxially, wherein the air inlet pipe is wound with the heating wire, the warm and humid air delivered to a patient is heated through the heating wire to realize temperature compensation, condensed water is not generated in the air inlet pipe, meanwhile, the heat dissipation of the air inlet pipe can also heat the air in the expiratory pipe, the temperature compensation of the expiratory pipe is realized, and the generation of the expiratory pipe condensed water is reduced, so that the coaxial heating breathing pipeline can ensure that the air inlet pipe does not generate the condensed water, the ventilation quality is improved, the generation of the expiratory pipe condensed water can be reduced, and the clinical nursing workload is reduced.)

1. A coaxially heated breathing circuit, comprising: the respirator comprises an air inlet pipe for supplying air, an expiration pipe for discharging waste gas, a first connecting piece for connecting a breathing equipment end and a second connecting piece for connecting a patient end, wherein the air inlet pipe coaxially penetrates through the expiration pipe, the first connecting piece is simultaneously connected with the same end of the air inlet pipe and the expiration pipe, the second connecting piece is simultaneously connected with the other end of the air inlet pipe and the other end of the expiration pipe, and heating wires are wound on the outer wall of the air inlet pipe.

2. The coaxial heating breathing circuit of claim 1 wherein the exhalation tube is made of a thermally insulating material.

3. The coaxial heating breathing circuit of claim 2 wherein the exhalation tube comprises two exhalation sub-tubes, a first T-shaped connector and a water receiving cup, one end of each exhalation sub-tube is connected to the first connector and the second connector, the other end of each exhalation sub-tube is connected to the first T-shaped connector through a connector, and the water receiving cup is connected to the bottom of the first T-shaped connector.

4. The coaxial heated breathing circuit of claim 3 wherein the first T-shaped connector is rotatably connected to the connector.

5. The heated coaxial breathing circuit of any of claims 1-4 wherein the first connector comprises a second T-shaped connector and an inlet connection tube and an outlet connection tube, the inlet connection tube and the outlet connection tube being in communication with the second T-shaped connector, respectively, the inlet tube passing through the second T-shaped connector and being in communication with the inlet connection tube, the outlet tube being in communication with the second T-shaped connector and being in communication with the outlet connection tube.

6. The coaxial heated breathing circuit of claim 5 wherein the second T-shaped connector has a socket on an outer wall thereof for electrically connecting to the heater wire.

7. The coaxial heating breathing circuit of any one of claims 1 to 4, wherein the second connecting member comprises an exchange tube and a fixed tube, the exchange tube and the fixed tube are coaxially arranged, one end of the exhalation tube is sleeved on the outer wall of the exchange tube, one end of the fixed tube is connected with the inner wall of the exchange tube, the other end of the fixed tube is connected with the air inlet tube, and a hollow part is arranged on the fixed tube.

8. The coaxial heating respiratory line of claim 7 wherein the inner wall of the exchange tube has a limiting protrusion and a plurality of limiting stops corresponding to the limiting protrusion, the outer wall of the fixed tube has a retaining protrusion, and the retaining protrusion is retained between the limiting protrusion and the limiting stops.

9. The coaxial heating breathing circuit of claim 7 wherein the outer wall of the exchange tube is provided with a sealing groove, the end of the exhalation tube is provided with an inner concave portion, and the inner wall of the inner concave portion abuts against the sealing groove.

10. The coaxial heated breathing circuit of claim 9 wherein the exchanger tube outer wall is surrounded by a limiting baffle, the limiting baffle abutting the seal groove.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a coaxial heating breathing pipeline.

Background

The heating breathing pipeline is often used in cooperation with a breathing machine in medicine, wherein the heating breathing pipeline has the clinical effect that dry and cold medical air, medical oxygen or mixed gas of the dry and cold medical air and the medical oxygen are supplied with power through the breathing machine, and then the passing gas is heated and humidified by a humidifier and then is conveyed to an airway of a patient, so that a comfortable breathing environment is created for the patient. The heating breathing pipeline generally comprises an air inlet pipe and an expiration pipe, wherein air supplied by the breathing machine is input to the humidifier for heating and humidifying through the air inlet pipe and then output to the breathing end of a patient, and air expired by the patient is output to the breathing machine through the expiration pipe.

The heating breathing pipelines used in the market have two types, one is an internal winding heating pipeline which is mainly formed by inserting a straight or winding heating guide wire into the pipeline, but the processing of the internal winding heating pipeline heating guide wire is complex, the purchasing cost is high, and the heating guide wire is not uniformly distributed in the pipeline, after the heating breathing pipeline is used for a long time, condensed water formed in an air inlet pipe of the heating breathing pipeline is slowly gathered on the inner wall of the pipeline, and accumulated water is formed, if medical care personnel do not pour out the accumulated water in time, the conveyed gas rushes into the airway of a patient, and suffocation of the patient can be caused; the other is an externally wound heating pipeline, which mainly wraps the heating wire uniformly on the pipe wall of the breathing pipeline, although the externally wound heating pipeline can solve the problem of water accumulation of the pipeline, the externally wound heating wire is on the outer surface of the pipe wall, most of the heat emitted by the externally wound heating wire is dispersed into the peripheral air, and the heat of the warm and humid gas in the pipeline is also diffused outwards, so that the temperature and humidity of the gas finally conveyed to a patient are low under the conditions of low flow and high flow, and the performance of the gas cannot meet the clinical use requirement.

Therefore, there is a need for a heated breathing circuit that effectively reduces the production of stagnant water and ensures the proper temperature and humidity for delivery to the patient.

Disclosure of Invention

In order to solve the technical problem, the invention provides a coaxial heating breathing pipeline which can effectively reduce the generation of the ponding and can ensure the proper temperature and humidity for the patient.

The invention discloses a coaxial heating breathing pipeline, which comprises: the breathing device comprises an air inlet pipe for supplying air, an expiration pipe for discharging waste gas, a first connecting piece for connecting a breathing device end and a second connecting piece for connecting a patient end, wherein the air inlet pipe coaxially penetrates through the expiration pipe, the first connecting piece is simultaneously connected with the same end of the air inlet pipe and the expiration pipe, the second connecting piece is simultaneously connected with the other end of the air inlet pipe and the other end of the expiration pipe, and a heating wire is wound on the outer wall of the air inlet pipe.

According to one embodiment of the present invention, the exhalation tube is made of a heat insulating material.

According to one embodiment of the invention, the exhalation tube comprises two exhalation sub-tubes, a first T-shaped connecting piece and a water receiving cup, one ends of the two exhalation sub-tubes are respectively connected with the first connecting piece and the second connecting piece, the other ends of the two exhalation sub-tubes are communicated with the first T-shaped connecting piece through a connecting piece, and the water receiving cup is communicated with the bottom of the first T-shaped connecting piece.

According to an embodiment of the present invention, the first T-shaped connecting member is rotatably connected to the connecting head.

According to an embodiment of the present invention, the first connecting member includes a second T-shaped connecting member, and an air inlet connecting tube and an exhalation connecting tube respectively communicated with the second T-shaped connecting member, the air inlet tube is disposed through the second T-shaped connecting member and is communicated with the air inlet connecting tube, and the exhalation tube is connected with the second T-shaped connecting member and is communicated with the exhalation connecting tube.

According to an embodiment of the present invention, a socket electrically connected to the heating wire is disposed on an outer wall of the second T-shaped connector.

According to an embodiment of the present invention, the second connecting member includes an exchange tube and a fixed tube, the exchange tube and the fixed tube are coaxially disposed, one end of the exhaling tube is sleeved on an outer wall of the exchange tube, one end of the fixed tube is connected to an inner wall of the exchange tube, the other end of the fixed tube is connected to the air inlet tube, and the fixed tube is provided with a hollow portion.

According to an embodiment of the invention, the inner wall of the exchange tube is annularly provided with a limit protrusion and a plurality of limit stops corresponding to the limit protrusion, the outer wall of the fixed tube is annularly provided with a clamping protrusion, and the clamping protrusion is clamped between the limit protrusion and the limit stops.

According to one embodiment of the invention, the outer wall of the exchange tube is annularly provided with a sealing groove, the tail end of the exhaling tube is annularly provided with an inner concave part, and the inner wall of the inner concave part is abutted against the sealing groove.

According to an embodiment of the invention, the outer wall of the exchange tube is annularly provided with a limit baffle, and the limit baffle is adjacent to the sealing groove.

The coaxial heating breathing pipeline is provided with the air inlet pipe and the expiratory pipe coaxially, wherein the air inlet pipe is wound with the heating wire, the warm and humid air delivered to a patient is heated through the heating wire to realize temperature compensation, condensed water is not generated in the air inlet pipe, meanwhile, the heat dissipation of the air inlet pipe can also heat the air in the expiratory pipe, the temperature compensation of the expiratory pipe is realized, and the generation of the expiratory pipe condensed water is reduced, so that the coaxial heating breathing pipeline can ensure that the air inlet pipe does not generate the condensed water, the ventilation quality is improved, the generation of the expiratory pipe condensed water can be reduced, and the clinical nursing workload is reduced.

Drawings

Fig. 1 is an exploded view of a coaxial heating breathing circuit according to the present invention.

FIG. 2 is a schematic view of the structure of the exhalation tube of the present invention.

Figure 3 is a cross-sectional view of an exhalation tube of the present invention.

Fig. 4 is a schematic structural diagram of a first connecting member according to the present invention.

Fig. 5 is a schematic view of the air flow direction of the first connecting member of the present invention.

Fig. 6 is a schematic structural view of a second connector according to the present invention.

Fig. 7 is a schematic view of the air flow direction of the second connector of the present invention.

Detailed Description

The coaxial heating breathing circuit of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

Fig. 1 is an exploded view of a coaxial heating breathing circuit according to the present invention.

The invention provides a coaxial heating breathing pipeline which is mainly used for heating dry and cold medical air, medical oxygen or mixed gas of the dry and cold medical air and the medical oxygen to be supplied to a patient for inhalation, and conveying exhaust gas exhaled by the patient to breathing equipment. The coaxial heating breathing circuit mainly comprises an air inlet pipe 10 for supplying air, an air outlet pipe 20 for discharging waste air, a first connecting piece 30 for connecting with the breathing equipment end and a second connecting piece 40 for connecting with the patient end. The air inlet pipe 10 coaxially penetrates through the exhalation pipe 20, the first connecting piece 30 is simultaneously connected with the same ends of the air inlet pipe 10 and the exhalation pipe 20, the second connecting piece 40 is simultaneously connected with the other ends of the air inlet pipe 10 and the exhalation pipe 20, and the outer wall of the air inlet pipe 10 is wound with a heating wire 101. In this application, exhale pipe 20 and adopt the heat preservation material, improve the heat preservation effect of exhale pipe 20 to gas.

When the coaxial heating breathing pipeline works, medical gas supplied by a breathing equipment end is sequentially output from a patient end through the first connecting piece 30, the air inlet pipe 10 and the second connecting piece 40 to be sucked by the patient, when the patient exhales, exhaled waste gas is sequentially output to the breathing equipment end through the second connecting piece 40, the exhalation pipe 20 and the first connecting piece 30 to be recycled, wherein the heating wire 101 uniformly heats the air inlet pipe 10, so that the medical gas in the air inlet pipe 10 is subjected to temperature compensation, condensation water in the air inlet pipe 10 is avoided, the air inlet pipe 10 and the exhalation pipe 20 are coaxially arranged, the heat dissipation of the air inlet pipe 10 uniformly heats the gas in the exhalation pipe 20, the condensation water generation in the exhalation pipe 20 is reduced, the heated warm gas in the exhalation pipe 20 isolates the air inlet pipe 10 from the external use environment, a buffer zone is formed, and the heat dissipation of the gas in the air inlet pipe is effectively reduced, more effectively ensures that the temperature and humidity of the gas delivered to the patient are of the clinically intended use.

Please refer to fig. 2 and fig. 3, which are a schematic structural diagram and a sectional view of the exhalation tube of the present invention, because the outer wall of the expiration pipe 20 is directly contacted with the outside, a small amount of condensed water is easily generated in the expiration pipe 20, in order to prevent the condensed water from flowing into the breathing apparatus or flowing back into the respiratory tract of the patient, the exhalation tube 20 mainly comprises two exhalation sub-tubes 201, a first T-shaped connector 202 and a water cup 203, wherein one end of each of the two exhalation sub-tubes 201 is connected to the first connecting member 30 and the second connecting member 40, the other end of each of the two exhalation sub-tubes 201 is connected to the first T-shaped connecting member 202 through a connecting joint 204, the water receiving cup 203 is connected to the bottom of the first T-shaped connecting member 202, so that the water receiving cup 203 collects the condensed water in the exhalation tube 20, wherein the water receiving cup 203 is detachably connected with the first T-shaped connecting piece 202, so that accumulated water in the water receiving cup 203 can be poured conveniently.

In an embodiment, as shown in fig. 2 and 3, the first T-shaped connector 202 is rotatably connected to the connector 204, for example, the first T-shaped connector 202 is connected to the connector 204 by a snap fit, so that the water receiving cup 203 can rotate relative to the exhalation tube 201, and the position of the water receiving cup 203 can be adjusted during the use of the coaxial heating respiratory tube of the present invention, so that the bottom of the water receiving cup 203 always faces the bottom surface, which not only ensures the water receiving effect of the water receiving cup 203, but also facilitates the installation of clinical tubes.

In an embodiment, referring to fig. 1, fig. 4 and fig. 5, wherein fig. 4 and fig. 5 are a schematic structural view and a schematic flow direction of a first connecting member according to the present invention, respectively, the first connecting member 30 includes a second T-shaped connecting member 301, and an air inlet connecting tube 302 and an exhalation connecting tube 303 respectively communicated with the second T-shaped connecting member 301, wherein the air inlet connecting tube 302 is mainly used for connecting with an air supply device, wherein the air inlet tube 10 penetrates through the second T-shaped connecting member 301 and is communicated with the air inlet connecting tube 302, so as to input medical gas into the air inlet tube 10, and the exhalation tube 20 is connected with the second T-shaped connecting member 301 and is communicated with the exhalation connecting tube 303, so that the first connecting member 30 has functions of supplying gas and removing waste gas, and has a simplified design and a. Wherein the outer wall of the second T-shaped connector 301 is provided with a socket 304 electrically connected with the heating wire 101, and the socket 304 is connected to a power supply to realize the power-on work of the heating wire 101, so that the use convenience of the heating function of the air inlet pipe 10 is improved.

In an embodiment, please refer to fig. 1, fig. 6 and fig. 7, wherein fig. 6 and fig. 7 are a schematic structural diagram and a schematic airflow direction diagram of a second connector according to the present invention, respectively, the second connector 40 includes an exchange tube 401 and a fixed tube 402, which are coaxially disposed, wherein the exchange tube 401 is mainly used for connecting with a patient end to realize exchange between supplied air and exhaled waste air, one end of the exhalation tube 20 is sleeved on an outer wall of the exchange tube 401, the fixed tube 402 is mainly used for fixing the air inlet tube 10 and communicating the air inlet tube 10 with the exchange tube 401, one end of the fixed tube 402 is connected with an inner wall of the exchange tube 401, and the other end is connected with the air inlet tube 10, wherein the fixed tube 402 is provided with a hollow portion 4021, and the exhalation tube 20 is communicated with the exchange tube 401 through the hollow portion 4021. When the coaxial heating breathing pipeline works, medical gas is output to the exchange pipe 401 through the fixed pipe 402 through the air inlet pipe 10, the medical gas heated by the air inlet pipe 10 is inhaled into a body of a patient when the patient inhales, the exhaled gas enters the exchange pipe 401 when the patient exhales, the air is continuously supplied through the air inlet pipe 10, the gas exhaled by the patient enters the exhalation pipe 20 through the hollow part 4021, and through the mode, the patient can exchange supplied gas and exhaled gas through the second connecting piece 40 at the same time, and the convenience of breathing of the patient is effectively improved. It should be noted that, in order to further facilitate the installation and use of the second connector 40, the end of the exchange tube 401 away from the fixed tube 402 is rotatably sleeved with an installation connector 403, wherein the installation connector 403 is rotatable relative to the exchange tube 401 and is communicated with the exchange tube 401, thereby further facilitating the installation of the coaxial heating breathing circuit of the present invention.

In an embodiment, please refer to fig. 6 again, the inner wall of the exchange tube 401 is annularly provided with a limiting protrusion 4011 and a plurality of limiting stoppers 4012 corresponding to the limiting protrusion 4011, wherein a limiting slot is formed between the limiting protrusion 4011 and the limiting stoppers 4012, the outer wall of the fixed tube 402 is annularly provided with a fastening protrusion 4022, and the fastening protrusion 4022 is fastened between the limiting protrusion 4011 and the limiting stoppers 4012, so that the exchange tube 401 and the fixed tube 402 are assembled more rapidly and effectively, thereby improving the assembly efficiency of the coaxial heating breathing circuit of the present invention.

In an embodiment, please refer to fig. 6 again, a sealing groove 4013 is annularly arranged on an outer wall of the exchange tube 401, an inner concave portion 205 is annularly arranged at the end of the exhalation tube 20, and an inner wall of the inner concave portion 205 abuts against the sealing groove 4013, so that the exhalation tube 20 and the exchange tube 401 are sealed, the exhaled air of the patient is recovered, and the heat preservation effect of the exhalation tube 20 is effectively ensured.

In an embodiment, as shown in fig. 6, a limiting baffle 4014 is further disposed around the outer wall of the exchange tube 401, wherein the limiting baffle 4014 is adjacent to the sealing groove 4013, so that the exhaling tube 20 is limited by the limiting baffle 4014, and the exhaling tube 20 can be quickly positioned during the installation process in the exchange tube 401, thereby further improving the assembly efficiency of the coaxial heating breathing circuit of the present invention.

In conclusion, the coaxial heating breathing pipeline is provided with the air inlet pipe and the expiratory pipe coaxially, wherein the air inlet pipe is wound with the heating wire, the warm and humid air delivered to a patient is heated through the heating wire to realize temperature compensation, condensed water is not generated in the air inlet pipe, meanwhile, the heat dissipation of the air inlet pipe can also heat the air in the expiratory pipe, the temperature compensation of the expiratory pipe is realized, and the generation of the condensed water of the expiratory pipe is reduced, so that the coaxial heating breathing pipeline can not only ensure that the air inlet pipe does not generate the condensed water, improve the ventilation quality, but also reduce the generation of the condensed water of the expiratory pipe, and reduce the workload of clinical care.

In the description of the present invention, it is to be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships, are used based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and for the simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are intended to be included within the spirit and scope of the present invention.