Anesthetic gas conveying device

Abstract

The utility model discloses an anesthetic gas conveying device which comprises a fixing frame, an oxygen bottle and an anesthetic gas bottle are arranged on the fixing frame, a mixing chamber is fixedly installed at the top of the fixing frame, a first conveying pipe is arranged at the top of the oxygen bottle, and one end of the first conveying pipe is communicated with the mixing chamber. The top of the anesthetic gas bottle is communicated with a second conveying pipe, and one end of the second conveying pipe is communicated with the mixing chamber; mixed gas is heated through the electric heating pipe and the heat conveying pipe, the temperature of output gas can be controlled, the situation that the body temperature of a patient is reduced in the operation process due to low-temperature anesthesia can be prevented, the flow and proportion of conveyed oxygen and anesthetic gas can be adjusted through the flow meter and the adjusting valve, and the optimal anesthetic effect is achieved; meanwhile, due to the adoption of the mixing device, the regulating valve and other control devices, waste of anesthetic gas can be reduced, and the anesthetic effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anesthetic gas, in particular to an anesthetic gas delivery device. Background Art

[0002] Inhaled anesthetics enter the human body through the respiratory tract in the form of volatile gases to form an anesthetic effect. This type of drug includes ether, isoflurane, nitrous oxide, etc. It enters the blood through the alveolar artery, passes through the blood-brain barrier with the blood circulation, and finally reaches the brain and enters the central nervous system. It can block the function of neurotransmission and play an anesthetic role.

[0003] The Chinese patent with the existing announcement number CN206228726U discloses a medical device, more specifically a constant pressure delivery device for anesthetic gas, which is not only simple in structure and easy to operate, but also can balance the flow rate of oxygen and anesthetic gas, and accurately control the output concentration of anesthetic. The oxygen inlet pipe and the anesthetic gas inlet pipe are both installed at the upper end of the mixing chamber, the oxygen inlet pipe is provided with a control valve I, the control valve I is provided with a bevel gear handwheel I, the anesthetic gas inlet pipe is provided with a control valve II, the control valve II is provided with a bevel gear handwheel II, and the bevel gear handwheel I and the bevel gear handwheel II are both meshed with a bevel gear. The bevel gear is installed at the upper end of the shaft rod, the rotating drum is installed at the lower end of the shaft rod, a bearing is provided between the shaft rod and the mixing chamber, and the bevel gear is located outside the mixing chamber, the rotating drum is located in the mixing chamber, a barometer is provided on the mixing chamber, one end of the exhaust pipe is connected to the mixing chamber, the other end of the exhaust pipe is connected to the mask, and a buffer pipe is provided on the exhaust pipe.

[0004] However, the above-mentioned delivery device has the following disadvantages: the device can accurately control the output concentration of anesthetics by setting a control valve and a bevel gear handwheel, but the device cannot control the temperature of the mixed anesthetic gas. For the severely cold winter in the north, the lower temperature of the anesthetic gas may cause the following problems: 1. If the temperature of the mixed anesthetic gas is too low, it may cause a decrease in body temperature or even hypothermia when it is supplied to the patient, which will affect the pharmacokinetics and efficacy of the anesthetic drugs and increase the risk of anesthesia; 2. The supercooled anesthetic gas is delivered to the patient's mouth and nose through the mask, which may irritate the respiratory tract and cause bronchial constriction, increasing the risk of complications during anesthesia; 3. Low temperature can cause inaccurate barometer readings, which will bring errors to the monitoring of anesthetic gas concentration.

[0005] Therefore, it is necessary to provide an anesthetic gas delivery device to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide an anesthetic gas delivery device which adopts an electric heating tube and a heating sleeve and has the effect of controlling the temperature of the mixed anesthetic gas.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: an anesthetic gas delivery device, comprising a fixing frame, on which an oxygen cylinder and an anesthetic gas cylinder are arranged, a mixing chamber is fixedly installed on the top of the fixing frame, an output pipe for communicating with a mask is arranged on one side of the mixing chamber, a first delivery pipe is arranged on the top of the oxygen cylinder, one end of the first delivery pipe is connected to the mixing chamber, a second delivery pipe is arranged on the top of the anesthetic gas cylinder, one end of the second delivery pipe is connected to the mixing chamber, flow meters are respectively arranged on the first delivery pipe and the second delivery pipe, regulating valves are respectively arranged on the first delivery pipe and the second delivery pipe, a heating box is fixedly installed on the top of the mixing chamber, a plurality of electric heating pipes are arranged inside the heating box, a fan is fixedly installed on one side of the heating box, and a heat transfer pipe acting on the mixing chamber or the output pipe is arranged on the other side of the heating box.

[0008] By adopting the above technical solution, the advantages brought by the structural design of the anesthetic gas delivery device are mainly reflected in the following aspects:

[0009] First, the flowmeter and valve can accurately measure and control the flow of oxygen and anesthetic gas, and achieve precise adjustment of their ratio and delivery volume, so that the anesthesiologist can choose the best gas ratio and flow according to the patient's condition and easily achieve the ideal anesthesia depth, which improves the accuracy and safety of anesthesia;

[0010] Second, the regulation of the valve can minimize the consumption and waste of anesthetic gas. The anesthesiologist only needs to adjust the flow rate to the minimum required by the patient to avoid excessive consumption caused by excessive flow rate, which is especially critical for expensive gases and also increases the utilization efficiency of anesthetic gas.

[0011] Third, the electric heating system can heat the anesthetic gas efficiently, and the heat generated can be easily and evenly transported through the heat transfer pipe. The heated anesthetic gas can flow and be inhaled more easily, which also reduces the discomfort of human inhalation and improves the speed and efficiency of its transmission and physiological effects, which is conducive to the rapid generation and recovery of the anesthetic state.

[0012] The utility model is further configured as follows: a handle is fixedly mounted on one side of the fixing frame.

[0013] By adopting the above technical solution, the fixing frame can be pushed to drive the oxygen cylinder and the anesthesia gas cylinder to move.

[0014] The utility model is further configured as follows: a heating jacket is provided at one end of the output pipe close to the mixing chamber, the heating jacket is hollow, and the heat transfer pipe is connected to the heating jacket.

[0015] By adopting the above technical solution, a heating sleeve can be set to directly heat the anesthetic gas in the output tube, so that the anesthetic gas can be maintained at a relatively high and stable temperature, providing the patient with warm and comfortable anesthetic gas, ultimately improving the patient's surgical experience and reducing the discomfort caused by inhalation of supercooled gas.

[0016] The utility model is further configured as follows: it also includes a temperature controller and a temperature sensor, the temperature sensor is arranged at the end of the output tube, and the temperature controller is electrically connected to the electric heating tube and the temperature sensor respectively.

[0017] By adopting the above technical solution, setting up a temperature controller, an electric heating tube and a temperature sensor at the end of the output tube, and using temperature closed-loop control, this design solution can achieve high-precision monitoring and control of the temperature of the delivered anesthetic gas, keeping it at a relatively stable level, which improves the safety, continuity and comfort of anesthesia.

[0018] The utility model is further configured as follows: two support plates are fixedly installed at the four corners of the bottom of the fixing frame, a rotating shaft is rotatably installed between the two support plates, and a roller is fixedly installed on the rotating shaft.

[0019] By adopting the above technical solution, the fixing frame can be driven to move.

[0020] The utility model is further configured as follows: a filter is arranged inside a side wall of the heating box close to the fan.

[0021] By adopting the above technical solution, dust can be prevented from entering the fan.

[0022] In summary, the utility model has the following beneficial effects: the mixed gas is heated by the electric heating tube and the heat transfer tube, the temperature of the output gas can be controlled, and hypothermia anesthesia can be prevented, which causes the patient's body temperature to drop during surgery. The flow rate and ratio of the delivered oxygen and anesthetic gas can be adjusted by the flow meter and the regulating valve to achieve the best anesthetic effect. At the same time, due to the use of control devices such as the mixing device and the regulating valve, the waste of anesthetic gas can be reduced and the anesthetic effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0025] Figure 3 It is a side view schematic diagram of the utility model;

[0026] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0028] Figure 6 It is the principle block diagram of the circuit part of the utility model.

[0029] In the figure: 1. fixing frame; 2. oxygen cylinder; 3. handle; 4. mixing chamber; 5. fan; 6. heating box; 7. heat transfer pipe; 8. heating sleeve; 9. output pipe; 10. anesthesia gas cylinder; 11. roller; 12. rotating shaft; 13. support plate; 14. first delivery pipe; 15. electric heating pipe; 16. second delivery pipe; 17. flow meter; 18. regulating valve; 19. filter; 20. thermostat; 21. temperature sensor. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] See also Figures 1 to 5In the embodiment of the utility model, an anesthetic gas delivery device includes a fixing frame 1, on which an oxygen cylinder 2 and an anesthetic gas cylinder 10 are arranged, a mixing chamber 4 is fixedly installed on the top of the fixing frame 1, and an output pipe 9 for communicating with a mask is arranged on one side of the mixing chamber 4, a first delivery pipe 14 is arranged on the top of the oxygen cylinder 2, one end of the first delivery pipe 14 is connected to the mixing chamber 4, a second delivery pipe 16 is arranged on the top of the anesthetic gas cylinder 10, and one end of the second delivery pipe 16 is connected to the mixing chamber 4, a flow meter 17 is arranged on the first delivery pipe 14 and the second delivery pipe 16, and a regulating valve 18 is arranged on the first delivery pipe 14 and the second delivery pipe 16, a heating box 6 is fixedly installed on the top of the mixing chamber 4, a plurality of electric heating pipes 15 are arranged inside the heating box 6, a fan 5 is fixedly installed on one side of the heating box 6, and a heat transfer pipe 7 acting on the output pipe 9 is arranged on the other side of the heating box 6; when in use, the oxygen cylinder 2 delivers oxygen into the mixing chamber 4 through the first delivery pipe 14 In the mixing chamber 4, the anesthetic gas bottle 10 delivers the anesthetic gas into the mixing chamber 4 through the second delivery pipe 16, and then the flow rate and ratio of the delivered oxygen and anesthetic gas are controlled according to the flow meter 17 and the regulating valve on the first delivery pipe 14 and the second delivery pipe 16 to achieve the best anesthetic effect. After the mixing in the mixing chamber 4 is completed, it can be delivered to the patient's mouth and nose through the output pipe 9, and the fan 5 is turned on to transmit the heat emitted by the electric heating pipe 15 in the heating box 6 to the heating jacket 8 through the heat transfer pipe 7 to heat the output mixed gas; the mixed gas is heated by the electric heating pipe 15 and the heat transfer pipe 7, and the temperature of the output gas can be controlled, which can prevent low-temperature anesthesia, thereby causing the patient's body temperature to drop during the operation. The flow rate and ratio of the delivered oxygen and anesthetic gas can be adjusted by the flow meter 17 and the regulating valve to achieve the best anesthetic effect. At the same time, due to the use of control devices such as a mixing device and a regulating valve, the waste of anesthetic gas can be reduced and the anesthetic effect can be improved.

[0032] In this embodiment, preferably, a handle 3 is fixedly installed on one side of the fixing frame 1, and the fixing frame 1 can be pushed to drive the oxygen cylinder 2 and the anesthetic gas cylinder 10 to move.

[0033] In this embodiment, preferably, a heating sleeve 8 is provided at one end of the output pipe 9 close to the mixing chamber 4. The heating sleeve 8 is hollow, and the heat transfer pipe 7 is connected to the heating sleeve 8, which can heat the mixed gas and prevent hypothermia anesthesia, thereby causing the patient's body temperature to drop during the operation.

[0034] In this embodiment, preferably, a temperature controller 20 and a temperature sensor 21 are further included. The temperature sensor 21 is arranged at the end of the output tube 9. The temperature controller 20 is electrically connected to the electric heating tube 15 and the temperature sensor 21 respectively.

[0035] See also Figure 1 , Figure 2 and Figure 3 In the embodiment of the utility model, two support plates 13 are fixedly installed at the four corners of the bottom of the fixing frame 1, a rotating shaft 12 is rotatably installed between the two support plates 13, and a roller 11 is fixedly installed on the rotating shaft 12 to drive the fixing frame 1 to move.

[0036] In this embodiment, preferably, a filter screen 19 is provided in a side wall of the heating box 6 close to the fan 5 to prevent dust from entering the fan 5 .

[0037] Working principle: When in use, the oxygen cylinder 2 delivers oxygen into the mixing chamber 4 through the first delivery pipe 14, and the anesthetic gas cylinder 10 delivers anesthetic gas into the mixing chamber 4 through the second delivery pipe 16. Then, according to the flow meter 17 and the regulating valve on the first delivery pipe 14 and the second delivery pipe 16, the flow rate and ratio of the delivered oxygen and anesthetic gas are controlled to achieve the best anesthetic effect. After mixing in the mixing chamber 4, it can be delivered to the patient's mouth and nose through the output pipe 9, and the fan 5 is turned on to transmit the heat emitted by the electric heating tube 15 in the heating box 6 to the heating sleeve 8 through the heat transfer pipe 7 to heat the output mixed gas.

[0038] The above are only preferred implementations of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles of the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An anesthetic gas delivery device, comprising a fixing frame (1), characterized in that: An oxygen cylinder (2) and an anesthetic gas cylinder (10) are arranged on the fixing frame (1); a mixing chamber (4) is fixedly mounted on the top of the fixing frame (1); an output pipe (9) for communicating with a mask is arranged on one side of the mixing chamber (4); a first delivery pipe (14) is arranged on the top of the oxygen cylinder (2); one end of the first delivery pipe (14) is communicated with the mixing chamber (4); a second delivery pipe (16) is arranged on the top of the anesthetic gas cylinder (10); one end of the second delivery pipe (16) is communicated with the mixing chamber (4) , a flow meter (17) is provided on the first delivery pipe (14) and the second delivery pipe (16), respectively; a regulating valve (18) is provided on the first delivery pipe (14) and the second delivery pipe (16), respectively; a heating box (6) is fixedly installed on the top of the mixing chamber (4), a plurality of electric heating pipes (15) are provided inside the heating box (6), a fan (5) is fixedly installed on one side of the heating box (6), and a heat transfer pipe (7) acting on the mixing chamber (4) or the output pipe (9) is provided on the other side of the heating box (6).

2. An anesthetic gas delivery device according to claim 1, characterized in that: A handle (3) is fixedly mounted on one side of the fixing frame (1).

3. An anesthetic gas delivery device according to claim 1, characterized in that: A heating jacket (8) is provided at one end of the output pipe (9) close to the mixing chamber (4); the heating jacket (8) is hollow, and the heat transfer pipe (7) is connected to the heating jacket (8).

4. An anesthetic gas delivery device according to claim 1, characterized in that: It also includes a temperature controller (20) and a temperature sensor (21), wherein the temperature sensor (21) is arranged at the end of the output tube (9), and the temperature controller (20) is electrically connected to the electric heating tube (15) and the temperature sensor (21) respectively.

5. An anesthetic gas delivery device according to claim 2, characterized in that: Two support plates (13) are fixedly mounted at the four corners of the bottom of the fixed frame (1), a rotating shaft (12) is rotatably mounted between the two support plates (13), and a roller (11) is fixedly mounted on the rotating shaft (12).

6. An anesthetic gas delivery device according to claim 3, characterized in that: A filter screen (19) is arranged in a side wall of the heating box (6) close to the fan (5).

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