A mixed oxygen system

Abstract

The present invention discloses an oxygen mixing system, comprising an oxygen control module, an oxygen mixing module connected to the oxygen control module, and a gas release device; the oxygen control module comprises an oxygen seat; the oxygen seat is connected to an oxygen control valve, and is connected to the oxygen mixing module after passing through the oxygen control valve; the gas release device covers an interface on the oxygen control module, and an air guide hole is arranged on the gas release device; the oxygen mixing module comprises an oxygen mixing chamber, a blower is arranged in the oxygen mixing chamber, and an oxygen inlet and an air inlet connected to the oxygen seat are arranged on the oxygen mixing module; the oxygen inlet is connected to the oxygen mixing chamber through an oxygen channel, the air inlet is connected to the oxygen mixing chamber through an air channel, and the oxygen mixing chamber is connected to a conveying channel. The oxygen mixing system of the present invention is easy to operate and simple to replace, and its manufacturing process is simple in actual manufacturing and has high stability.

Description

Technical Field

[0001] The present invention relates to a device in the technical field of heated and humidified respiratory equipment, and in particular to an oxygen mixing system. Background Art

[0002] In the field of respiratory equipment, in the instruments for oxygen mixing, the current technology has two structures: manual adjustment and automatic adjustment. Manual adjustment is to refer to the adjustment table, find the oxygen supply flow target value under the corresponding total output flow, adjust the knob of the float flowmeter to make the indicated value reach the target value, wait for some time, read the oxygen concentration displayed by the machine to see if it reaches the target value, and make adjustments if there is a deviation; this adjustment method has a long waiting time and a relatively large error range for the target oxygen concentration; automatic control adjustment, and adding a proportional valve at the high-pressure oxygen input end, according to the set oxygen concentration and flow, the controller intelligently adjusts the opening of the proportional valve and monitors the target oxygen concentration in real time.

[0003] Compared with the above two forms of oxygen regulation, the automatic control structure is more intelligent and easier to operate and use in actual clinical practice. It is found from the prior art that the existing connection methods and adapters are inconvenient to operate, laborious to assemble and disassemble, and complex and difficult to manufacture. In actual use, the oxygen source connected to the air inlet of the oxygen module is high-pressure oxygen, and the oxygen control module is placed outside, but its assembly structure is complex, the oxygen mixing path is extended, and the response speed is not timely.

[0004] Compared with the patent CN205759083U, there are multiple joint connection points in the connection of the components of the regulating device, and these joint connection points are all mechanical connections; and in use, there is a risk of oxygen leakage at these joints. There are many electronic control components in the machine, and the joints are all exposed in the machine. Once a leak occurs, all the oxygen will be discharged into the machine, which will cause great safety hazards to the machine; Summary of the invention

[0005] In view of the above technical problems, the present invention provides a new oxygen mixing system, which is easy to operate and simple to replace. In actual manufacturing, the manufacturing process is simple and the stability is high.

[0006] To achieve the above object, the technical solution adopted by the present invention is: an oxygen mixing system, including an oxygen control module, an oxygen mixing module connected to the oxygen control module, and a gas release device;

[0007] The oxygen control module includes an oxygen seat, which is connected to the oxygen control valve and is connected to the oxygen mixing module through the oxygen control valve;

[0008] The air release device covers the interface on the oxygen control module, and an air guide hole is arranged on the air release device, and the air guide hole can guide the gas leakage inside the air release device to the outside;

[0009] The oxygen mixing module includes an oxygen mixing chamber, in which a blower is arranged, and the oxygen mixing module is provided with an oxygen inlet and an air inlet connected to the oxygen seat, the oxygen inlet is connected to the oxygen mixing chamber through an oxygen channel, the air inlet is connected to the oxygen mixing chamber through an air channel, and the oxygen mixing chamber is connected to the conveying channel.

[0010] Furthermore, the oxygen seat is connected to the oxygen mixing module through an air pipe, and an oxygen control valve is installed between the oxygen seat and the air pipe through a pneumatic joint. In practical applications, in order to prevent a single failure, leakage at any of the above connection nodes will be led out of the oxygen mixing system from the air release device, thereby preventing oxygen from being released into the breathing device and causing danger in the event of oxygen leakage.

[0011] Furthermore, the oxygen inlet is arranged on the wall of the oxygen mixing chamber around the air inlet end of the blower, and is communicated with the oxygen inlet through an oxygen channel arranged at the bottom of the oxygen mixing chamber.

[0012] Furthermore, in order to enhance the reliability of the system, the oxygen control module is connected to the oxygen mixing module via a pressure plate.

[0013] Furthermore, the oxygen control module also includes a control panel for detecting relevant parameters.

[0014] Furthermore, the oxygen channel and the air channel of the oxygen mixing module are sealed by means of sealing software and a cover plate to ensure that the gas flows in the specified channel.

[0015] Furthermore, a bypass sensor is provided in the delivery channel, the blower outlet is connected to the delivery gas path, the bypass sensor is connected to the delivery gas path through the delivery gas pipe, and at the same time, the bypass sensor is connected to the oxygen mixing body through the delivery gas pipe. The bypass sensor detects relevant parameters of the output gas.

[0016] Furthermore, a gas resistance device is provided in the conveying channel to sense the flow rate and pressure of the gas and realize the control of the target value.

[0017] As another preferred embodiment, the oxygen control valve is fixed on the oxygen seat, and the deflation device is covered outside the oxygen seat and the oxygen control valve. Preferably, one interface of the deflation device is sealed and fixed with the oxygen interface, and the other interface is connected with the oxygen mixing module to achieve deflation safety control of the entire oxygen control module.

[0018] The working principle of the present invention is: oxygen O 2Enter the oxygen inlet at the bottom of the oxygen mixing body, enter the oxygen channel, and enter the oxygen mixing chamber through the oxygen inlet; the oxygen inlet is set near the air inlet end of the blower; similarly, the air flow path is to enter the air inlet on the oxygen mixing body, flow through the air channel, and enter the oxygen mixing chamber through the air inlet of the oxygen mixing chamber; the control board is set in the oxygen control module to detect relevant parameters; through the blower set in the oxygen mixing chamber, the blower outlet enters the outlet of the delivery channel, and is structurally connected with the respiratory equipment to humidify and heat the target mixed gas and send it to the patient end, that is, to complete the working process of the entire machine. Send the mixed gas to the patient end.

[0019] The invention has the following beneficial effects: integrated assembly, convenient manufacturing; simple process and high yield rate in the actual production process. The invention adopts a safety technical solution for oxygen leakage, thereby improving the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of an oxygen mixing system according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of an oxygen control module according to an embodiment of the present invention;

[0022] Figure 3 A top view of an oxygen mixing system according to an embodiment of the present invention (partial structure omitted);

[0023] Figure 4 It is a bottom three-dimensional schematic diagram of the oxygen mixing system of an embodiment of the present invention (partial structure is omitted);

[0024] Figure 5 A partial cross-sectional view of an oxygen mixing system according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of another oxygen control module structure according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] To facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings.

[0027] like Figure 1 The figure is a three-dimensional schematic diagram of the oxygen mixing system 11; the oxygen mixing system 11 is provided with an oxygen control module 11-1 and an oxygen mixing module 11-2. The oxygen control module 11-1 includes an oxygen interface 110, an oxygen seat 111, an oxygen control valve 112, and a gas release device 113 which are connected in sequence. The oxygen interface 110 is connected to the oxygen connecting pipe on the wall of the oxygen seat 111 to transfer oxygen O 2It is connected to the oxygen control module 11-1; the oxygen seat 111 is connected to the oxygen control valve 112, and the oxygen control valve 112 adjusts the opening of its internal valve seat until the target setting value; the oxygen control module 11-1 is connected to the oxygen mixing module 11-2, and the output oxygen is sent to the oxygen mixing chamber 1148; a blower is set in the oxygen mixing chamber 1148.

[0028] like Figure 2 As shown, the oxygen control module 11-1 is removed from the air release device 113 to show a schematic diagram of the structural connection; wherein the oxygen seat 111 is connected to the oxygen control valve 112 by a pneumatic connector 122, and the oxygen control valve 112 is connected to the air pipe 123 by a pneumatic connector 122, thereby connecting the oxygen mixing module 11-2; in actual application, in order to prevent leakage at any of the above-mentioned connection nodes under a single fault, the leakage will be Figure 1 The air release device 113 is led out of the machine to prevent oxygen from being released into the machine to the greatest extent possible in the event of oxygen leakage, thereby causing danger.

[0029] In the oxygen mixing system 11, Figure 3 As shown, an oxygen inlet 1141 is arranged around the motor air inlet at the bottom of the oxygen mixing chamber 114. Figure 4 As shown, an oxygen channel 1143 communicating with the oxygen inlet 1141 is provided.

[0030] like Figure 4 and Figure 5 As shown, the air guide hole 1131 is provided on the air release device 113, and the air guide hole 1131 is connected to the air guide groove 118, so that leakage at any point inside can be guided from the air guide groove 118 to the outside of the machine and discharged into the atmosphere. The air guide groove 118 can be connected to the housing of the breathing device alone, or it can become a part of the housing of the breathing device, as a passage for discharging leaked gas.

[0031] like Figure 3 , Figure 4 As shown, the working principle of the oxygen mixing module, the oxygen flow path and the air flow path are specifically described; the oxygen control module 11-1 is connected to the machine oxygen mixing module 11-2 through the pressure plate 126, and the oxygen O 2 The air enters the oxygen through hole 1142 at the bottom of the oxygen mixing body 114, enters the oxygen channel 1143, and enters the oxygen mixing chamber 1148 through the oxygen inlet 1141; the oxygen inlet 1141 is arranged near the air inlet end of the blower; similarly, the air flows through the air inlet 1146 on the oxygen mixing body 114, flows through the air channel 1145, and enters the oxygen mixing chamber 1148 through the air inlet 1147 of the oxygen mixing chamber; the control board 115 is arranged in the oxygen control module 11-1 to detect relevant parameters; a blower is arranged in the oxygen mixing chamber 1148 to deliver the mixed gas to the patient end.

[0032] like Figure 5 As shown, the oxygen mixing module 11-2 is provided with an oxygen mixing body 114, an upper sealing software 117, an upper cover plate 116, a lower sealing software 125, and a lower cover plate 124, which makes a closed loop of the gas path of the oxygen mixing module to ensure that the gas flows within the prescribed path; a blower is arranged in the oxygen mixing chamber 1148 of the oxygen mixing body 114 to output the mixed gas, which enters the delivery channel outlet 127 from the blower outlet 121; the delivery channel outlet 127 is structurally connected to the respiratory equipment to humidify and heat the target mixed gas and deliver it to the patient end, thus completing the working process of the entire machine.

[0033] like Figure 5 As shown, a bypass sensor 119 is provided in the delivery channel, which is connected to the first delivery gas pipe 120 and the second delivery gas pipe 129 respectively to detect relevant parameters of the output gas, and a gas resistance device 128 is provided in the delivery channel to sense the flow and pressure of the gas to achieve control of the target value.

[0034] like Figure 3 and Figure 5 As shown, the oxygen-mixed gas is output from the fan outlet 121, enters the delivery gas path 1149, and is delivered to the equipment outlet from the delivery channel outlet 127; a connecting port 1150 is provided on the delivery gas path 1149, and the connecting port 1150 is connected to and communicated with one end of the first delivery gas pipe 120, and the other end of the first delivery gas pipe 120 is connected to and communicated with the bypass sensor inlet; the bypass sensor outlet is connected to and communicated with the second delivery gas pipe 129;

[0035] like Figure 4 As shown, the other end of the second gas delivery pipe 129 is connected to the communication port 1151 on the oxygen mixing body 114 to achieve the measurement action of the bypass sensor;

[0036] like Figure 2 The oxygen control valve 112 of the oxygen control module 11-2 shown in the figure is connected by means of the air pipe joint 122 according to its structure, so it is necessary to make a corresponding connection node. Figure 1 , Figure 3 , Figure 4 , Figure 5 The exhaust device 113 is shown to exhaust to the outside of the machine.

[0037] like Figure 6 As shown, another implementation case of the oxygen control module is described, and the application of the gas release device is further described; according to the structure of the gas control valve 130, it is directly fixed on the oxygen seat 111, so the gas release device 113 is covered outside the oxygen seat 111 and the gas control valve 130, and is sealed and fixed to the oxygen interface 110, and the other end is connected to the oxygen mixing module 11-2; the gas release safety control of the entire oxygen module 11-1 is realized.

[0038] The above examples only illustrate the oxygen mixing system, and the structural form of its air release device is not limited to this, mainly to illustrate the air release principle; other connection methods are also within the protection scope of this patent; including the description of the flow path of the entire oxygen mixing system, it is only an explanation of one of the implementation cases. Any changes made on the basis of the technical solution in accordance with the technical ideas proposed by the present invention fall within the protection scope of the present invention.

Claims

1. An oxygen mixing system, characterized in that: It includes an oxygen control module, an oxygen mixing module connected to the oxygen control module, and a gas release device; The oxygen control module includes an oxygen seat; the oxygen seat is connected to the oxygen control valve, and is connected to the oxygen mixing module through the oxygen control valve; The air release device covers the interface on the oxygen control module, and an air guide hole is arranged on the air release device; the air guide hole is connected with the air guide groove, and is used to guide the leakage at any point inside from the air guide groove to the outside of the machine and discharge it into the atmosphere; The oxygen mixing module includes an oxygen mixing chamber, in which a blower is arranged, and the oxygen mixing module is provided with an oxygen inlet and an air inlet connected to the oxygen seat; the oxygen inlet is connected to the oxygen mixing chamber through an oxygen channel, the air inlet is connected to the oxygen mixing chamber through an air channel, and the oxygen mixing chamber is connected to the conveying channel.

2. The oxygen mixing system according to claim 1, characterized in that: The oxygen seat is connected to the oxygen mixing module through an air pipe, and an oxygen control valve is installed between the oxygen seat and the air pipe through a pneumatic joint.

3. The oxygen mixing system according to claim 1, characterized in that: The oxygen inlet is arranged on the wall of the oxygen mixing chamber around the air inlet end of the blower, and is communicated with the oxygen inlet through an oxygen channel arranged at the bottom of the oxygen mixing chamber.

4. The oxygen mixing system according to claim 1, characterized in that: The oxygen control module is connected to the oxygen mixing module through a pressure plate.

5. The oxygen mixing system according to claim 1, characterized in that: The oxygen channel and air channel of the oxygen mixing module are sealed by sealing software and a cover plate.

6. The oxygen mixing system according to claim 1, characterized in that: The oxygen control module also includes a control panel for detecting relevant parameters.

7. The oxygen mixing system according to claim 1, characterized in that: A bypass sensor is arranged in the conveying channel, the blower outlet is connected to the conveying gas path, the bypass sensor is connected to the conveying gas path through the conveying gas pipe, and at the same time, the bypass sensor is connected to the oxygen mixing body through the conveying gas pipe.

8. The oxygen mixing system according to claim 1 or 7, characterized in that: An air resistance device is set in the conveying channel to sense the gas flow and pressure to achieve control of the target value.

9. The oxygen mixing system according to claim 1, characterized in that: The oxygen control valve is fixed on the oxygen seat, and the air release device is covered outside the oxygen seat and the oxygen control valve.

10. The oxygen mixing system according to claim 1, characterized in that: One interface of the air release device is sealed and fixed to the oxygen interface, and the other interface is connected to the oxygen mixing module.

Images