Anesthesia medicine supply device for anesthesiology department

Abstract

The invention discloses an anesthesia medicine supply device for the anesthesiology department, and belongs to the technical field of medicine supply, the anesthesia medicine supply device comprises a base, a pressure gauge and a control button, the outer side of the base is connected with a box door through a hinge, an injection mechanism is arranged over the base, the injection mechanism divides oxygen into two groups or a single group of anesthetic gas and injects the anesthetic gas into the base, and the pressure gauge is connected with the control button. The injection mechanism is arranged on one side of the injection mechanism, the discharging mechanism is arranged on one side of the injection mechanism, mixed oxygen and anesthetic gas are discharged after being mixed through the discharging mechanism, pure oxygen is directly discharged through the discharging mechanism, and then guided-out gas is flexibly controlled and discharged; a control panel is arranged on the outer side of the discharging mechanism, a pressure gauge is arranged on the outer side of the control panel, and a plurality of sets of control buttons are arranged on the surface of the control panel. According to the scheme, through mechanical precise transmission, precise matching and quick response of anesthesia mixed gas are achieved, and the volume adjusting error of the mixing bin can be controlled within + / -0.5%.

Description

Technical Field

[0001] The present invention belongs to the technical field of drug supply, and in particular relates to an anesthesia drug supply device for anesthesia department. Background Art

[0002] The anesthesia delivery device uses a gas mixing and delivery system to deliver a proportional mixture of anesthetic gas and oxygen to the patient. The core process includes: gas source switching → gas mixing → filtration and purification → atomization and delivery. The anesthetic gas vaporizer is responsible for converting the liquid anesthetic into a vapor of controllable concentration, which is then mixed with oxygen to form the anesthetic gas mixture.

[0003] In the current use of anesthesia adjustment devices, the ratio of oxygen and anesthetic gas is mainly controlled by two valves, and the ratio of oxygen and anesthetic gas cannot be controlled more accurately. Each time the ratio of concentration is adjusted, the doctor needs to judge the adjustment of the anesthetic concentration based on the opening size of the valve. The ratio of oxygen and anesthetic gas cannot be accurately adjusted, which makes the anesthesia adjustment device inconvenient to use. Based on the above reasons, the present invention designs an anesthesia drug supply device for anesthesia department. Summary of the Invention

[0004] The purpose of the present invention is to provide an anesthetic drug supply device for anesthesia department to solve the problems in the prior art that the drying operation is relatively cumbersome and difficult to collect and preserve.

[0005] An anesthesia drug supply device for anesthesia department includes a base, a pressure gauge, a control button and an anesthesia concentration probe. The outer side of the base is hingedly connected to a box door. An injection mechanism is provided directly above the base. The injection mechanism injects oxygen into the device in two groups and a single group of anesthetic gas, thereby completing the preparation before the anesthetic agent is mixed. A discharge mechanism is provided on one side of the injection mechanism. The discharge mechanism discharges the mixed oxygen and anesthetic gas after mixing and directly discharges pure oxygen, thereby flexibly controlling and discharging the discharged gas. A control panel is provided on the outside of the discharge mechanism, a pressure gauge is provided on the outside of the control panel, and multiple groups of control buttons are provided on the surface of the control panel. The proportioning mechanism is provided on one side of the injection mechanism. The proportioning mechanism flexibly adjusts the proportioning space according to the use requirements and the one-time injection volume, thereby realizing continuous and precise adjustment of the gas chamber volume; A purification mechanism is provided on the other side of the proportioning mechanism. The purification mechanism is arranged inside the injection mechanism. The purification mechanism purifies the anesthetic gas after proportioning, blocks cross-infection of microorganisms, and ensures the stability of drug storage and delivery.

[0006] Preferably, the injection mechanism includes an oxygen interface 1, an oxygen interface 2, an anesthetic gas injection end, an equipment shell, a delivery pipe and a trigger gas circuit valve 1. The oxygen interface 1 and the oxygen interface 2 are arranged through one side of the equipment shell, one side of the oxygen interface 2 is connected to the delivery pipe, the anesthetic gas injection end is arranged through the top of the equipment shell, one end of the oxygen interface 1 is connected to one end of one group of trigger gas circuit valves 1 through a pipeline, one end of the anesthetic gas injection end is connected to another end of the other group of trigger gas circuit valves 1 through a pipeline, and the other ends of the two groups of trigger gas circuit valves 1 are connected to the mixing chamber input end.

[0007] Preferably, the second oxygen interface is connected to the discharge mechanism through a delivery pipe provided on one side, and the delivery pipe is connected to one group of discharge connectors.

[0008] Preferably, the discharge mechanism includes a second trigger air circuit valve, an oxygen concentration sensor, a solenoid valve, a drive shaft, a discharge joint and a servo motor. The second trigger air circuit valve is installed on one side of the mixing chamber, the oxygen concentration sensor is installed on the other end of the second trigger air circuit valve, the output end of the oxygen concentration sensor is connected to the discharge joint, the servo motor is installed on one side of the oxygen concentration sensor, and the output end of the servo motor is connected to the drive shaft.

[0009] Preferably, the servo motor is connected to the outer side of the ball screw via a driving shaft connected to the output end, and the ball screw is arranged through one end of the mixing chamber.

[0010] Preferably, the proportioning mechanism includes a mixing chamber, a ball screw, an impeller, a piston, a one-way electric valve, an air supply hose and a sealing rubber ring. The ball screw is arranged inside the mixing chamber, the outside of the ball screw is connected to the piston, and the sealing rubber ring is symmetrically arranged on the outside of the piston. The top rod part of the ball screw is connected to the impeller, and the impeller is arranged inside the mixing chamber. The one-way electric valve is arranged on one side of the piston, and the output end of the one-way electric valve is connected to one end of the air supply hose, and the other end of the air supply hose is connected to one side of the purification chamber.

[0011] Preferably, the purification mechanism includes a purification chamber, an ultraviolet lamp, a filter element support plate, a guide rod, a sealing gasket, a HEPA filter element and a glass panel. An ultraviolet lamp is arranged inside the purification chamber, a filter element support plate is arranged directly below the ultraviolet lamp, a HEPA filter element is arranged directly below the filter element support plate, another set of filter element support plates is arranged below the HEPA filter element, sealing gaskets are fitted on both sides of the filter element support plates, the guide rods are symmetrically arranged inside the purification chamber, the filter element support plate is connected to the outside of the guide rods, and a glass panel is fitted directly above the filter element support plate.

[0012] Preferably, the purification chamber is connected to the upper and lower sides of the HEPA filter element through a filter element support plate symmetrically arranged inside, and a top sampling rectangular opening structure of the filter element support plate is arranged at the top.

[0013] Preferably, the control button is connected to a PLC or a microcontroller through a low-voltage circuit and is respectively connected to trigger gas circuit valve 1 and trigger gas circuit valve 2.

[0014] The advantages of the present invention are: 1. This solution achieves precise proportioning and rapid response of anesthetic gas mixtures through mechanical precision transmission. The volume adjustment error of the mixing chamber can be controlled within ±0.5%. By adjusting the volume of the dispensing chamber, a precise ratio of oxygen and anesthetic gas can be mixed (e.g., continuously adjustable from 1:10 to 10:1), reducing the risk of single-drug overdose. While ensuring precise control of anesthesia depth, it also significantly reduces the incidence of adverse drug reactions. When the high refraction drives the piston to move, the light rod at the top of the ball screw drives the impeller to rotate, mixing the injected gas, improving the accuracy of anesthetic delivery, and avoiding the impact of uncontrollable anesthetic dosage on safety.

[0015] 2. This solution integrates multimodal disinfection technologies. Residual secretions and pathogens in the anesthesia machine's breathing circuit are intercepted in two stages (filter adsorption → UV inactivation). This not only meets the efficient purification needs of the anesthesia gas delivery system, but also avoids the limitations of a single technology (such as the inability of the filter to kill viruses and weak UV penetration), meeting the highest level of infection control requirements in the operating room. At the same time, the filter support plate is used to lift the bottom of the UV lamp, making it easier for the UV light generated by the UV lamp to irradiate the gaps between the filter elements.

[0016] 3. The support module enables equidistant arrangement of filter cartridges (spacing error ≤ 0.5mm) and precise alignment with UV lamps, integrating filtration and disinfection functions within a limited space. The system volume is compressed by more than 30%. The rigid aluminum alloy frame supports a maximum load of 15kg / m², ensuring the stability of high-density filter arrays (such as 6-layer HEPA) and UV lamps. The filter cartridge slots are designed with elastic sealing gaskets to improve airtightness and prevent unfiltered air bypass leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the discharge mechanism in the present invention.

[0019] Figure 3 Schematic diagram of the internal structure of the injection mechanism in the present invention.

[0020] Figure 4Schematic diagram of the internal structure of the proportioning mechanism in the present invention.

[0021] Figure 5 Schematic diagram of the internal structure of the purification chamber in the present invention.

[0022] Figure 6 It is an overall top view of the present invention.

[0023] Figure 7 It is a cross-sectional view of the purification mechanism itself in the present invention.

[0024] Figure 8 It is a top view of the filter element support plate in the present invention.

[0025] Figure 9 The figure is a schematic diagram of the ratio flow of oxygen and anesthetic gas in the present invention.

[0026] Including: 1. Base; 2. Door; 3. Injection mechanism; 301. Oxygen interface 1; 302. Oxygen interface 2; 303. Anesthetic gas injection port; 304. Equipment housing; 305. Delivery tube; 306. Trigger gas valve 1; 4. Discharge mechanism; 401. Trigger gas circuit valve 2; 402. Oxygen concentration sensor; 403. Solenoid valve; 404. Drive shaft; 405. Discharge connector; 406. Servo motor; 5. Control panel; 6. Proportioning mechanism; 601. Mixing chamber; 602. Ball screw; 603. Impeller; 604. Piston; 605. One-way electric valve; 606. Air supply hose; 607. Sealing rubber ring; 7. Purification mechanism; 701. Purification chamber; 702. UV lamp; 703. Filter element support plate; 704. Guide rod; 705. Sealing gasket; 706. HEPA filter element; 707. Glass panel; 8. Pressure gauge; 9. Control buttons. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figures 1 to 9As shown, an anesthesia drug supply device for anesthesia department includes a base 1, a pressure gauge 8, a control button 9 and an anesthesia concentration probe. The outer hinge of the base 1 is connected to a box door 2. An injection mechanism 3 is provided directly above the base 1. The injection mechanism 3 divides oxygen into two groups and a single group of anesthetic gas and injects them into the interior, thereby completing the preparation before the anesthetic agent is mixed. A discharge mechanism 4 is provided on one side of the injection mechanism 3. The discharge mechanism 4 discharges the mixed oxygen and anesthetic gas after mixing and directly discharges pure oxygen, thereby flexibly controlling and discharging the derived gas. The anesthesia concentration probe is a known technology. The anesthesia concentration probe is arranged inside the purification chamber 701. The probe emits infrared light of a specific wavelength (such as the 3.3-10.6μm band) to measure the light intensity attenuation after gas absorption and calculate the gas concentration. A control panel 5 is provided on the outside of the discharge mechanism 4. A pressure gauge 8 is provided on the outside of the control panel 5. A plurality of control buttons 9 are provided on the surface of the control panel 5. The proportioning mechanism 6 is provided on one side of the injection mechanism 3. The proportioning mechanism 6 flexibly adjusts the proportioning space according to the use requirements and the one-time injection volume, thereby realizing continuous and precise adjustment of the gas chamber volume. A purification mechanism 7 is provided on the other side of the proportioning mechanism 6. The purification mechanism 7 is provided inside the injection mechanism 3. The purification mechanism 7 purifies the proportioned anesthetic gas to prevent cross-infection of microorganisms and ensure the stability of drug storage and delivery.

[0029] The injection mechanism 3 includes an oxygen interface 1 301, an oxygen interface 2 302, an anesthetic gas injection end 303, an equipment shell 304, a delivery pipe 305 and a trigger gas circuit valve 1 306. The oxygen interface 1 301 and the oxygen interface 2 302 are arranged through one side of the equipment shell 304. One side of the oxygen interface 2 302 is connected to the delivery pipe 305. The anesthetic gas injection end 303 is arranged through the top of the equipment shell 304. One end of the oxygen interface 1 301 is connected to one end of one group of trigger gas circuit valves 1 306 by a pipeline, and one end of the anesthetic gas injection end 303 is connected to one end of another group of trigger gas circuit valves 1 306 by a pipeline. The other ends of the two groups of trigger gas circuit valves 1 306 are connected to the input end of the mixing chamber 601. The oxygen interface 2 302 is connected to the discharge mechanism 4 through the delivery pipe 305 arranged on one side, and the delivery pipe 305 is connected to one group of discharge joints 405.

[0030] The discharge mechanism 4 includes a second trigger gas circuit valve 401, an oxygen concentration sensor 402, a solenoid valve 403, a drive shaft 404, a discharge connector 405 and a servo motor 406. The second trigger gas circuit valve 401 is installed on one side of the mixing chamber 601, and the oxygen concentration sensor 402 is installed at the other end of the second trigger gas circuit valve 401. The output end of the oxygen concentration sensor 402 is connected to the discharge connector 405, and the servo motor 406 is installed on one side of the oxygen concentration sensor 402. The output end of the servo motor 406 is connected to the drive shaft 404. The servo motor 406 is connected to the outer side of the ball screw 602 through the drive shaft 404 connected to the output end. The ball screw 602 is arranged at one end of the mixing chamber 601, and is sensed by the solenoid valve 403 and the oxygen concentration sensor 402, so as to detect the proportioned gas, thereby ensuring the accuracy of the anesthesia supply process and avoiding affecting the safety of use.

[0031] The proportioning mechanism 6 includes a mixing chamber 601, a ball screw 602, an impeller 603, a piston 604, a one-way electric valve 605, an air supply hose 606, and a sealing rubber ring 607. The ball screw 602 is disposed inside the mixing chamber 601, and the piston 604 is connected to the outside of the ball screw 602. The sealing rubber ring 607 is symmetrically disposed on the outside of the piston 604. The top polished rod portion of the ball screw 602 is connected to the impeller 603, which is disposed inside the mixing chamber 601. The one-way electric valve 605 is disposed on one side of the piston 604. The output end of the one-way electric valve 605 is connected to one end of the air supply hose 606, and the other end of the air supply hose 606 is connected to one side of the purification chamber 701. The ball screw 602 drives the nut axially to move by rotating the screw, resulting in a linear displacement of the piston 604. At the same time, part of the rotational energy can be transferred to the impeller 603, realizing the rotational mixing function.

[0032] The purification mechanism 7 includes a purification chamber 701, an ultraviolet lamp 702, a filter element support plate 703, a guide rod 704, a sealing gasket 705, a HEPA filter element 706 and a glass panel 707. The ultraviolet lamp 702 is arranged inside the purification chamber 701, and a filter element support plate 703 is arranged directly below the ultraviolet lamp 702. A HEPA filter element 706 is arranged directly below the filter element support plate 703. Another set of filter element support plates 703 is arranged below the HEPA filter element 706. Sealing gaskets are fitted on both sides of the filter element support plates 703. 705, the guide rod 704 is symmetrically arranged inside the purification chamber 701, and the outer side of the guide rod 704 is connected with a filter element support plate 703, and a glass panel 707 is fitted just above the filter element support plate 703. The purification chamber 701 is connected to the upper and lower sides of the HEPA filter element 706 through the filter element support plate 703 symmetrically arranged inside. A top sampling rectangular opening structure of the filter element support plate 703 is set at the top to perform secondary sterilization on the gas passing through the HEPA filter element 706, killing viruses, bacteria and other microorganisms that the filter element fails to intercept.

[0033] The control button 9 is connected to the PLC or microcontroller through a low-voltage circuit and is respectively connected to the trigger gas circuit valve 1 306 and the trigger gas circuit valve 2 401. The trigger gas circuit valve 1 306 and the trigger gas circuit valve 2 401 are connected through independent output channels of the PLC (for example, Q0.0 and Q0.1), which can realize time-sharing or parallel control, avoid signal interference, and improve the system fault tolerance.

[0034] When the present invention is in operation, the operator first connects the oxygen interface 1 301 and the oxygen interface 2 302 to the oxygen tank, wherein the oxygen interface 2 302 is connected to the other end of the delivery tube 305, and the delivery tube 305 is connected to one set of discharge connectors 405. Pure oxygen is injected into the interior of the breathing mask through the discharge connector 405. By powering off or powering on the solenoid valve 403, the delivery tube 305 is closed, thereby facilitating the switching between pure oxygen and anesthetic gas. The control button 9 is used to open and close the trigger gas circuit valve 1 306 and the trigger gas circuit valve 306, thereby controlling the injection time of oxygen and anesthetic gas. The operator injects oxygen directly into the interior of the mixing chamber 601 provided on one side through another set of oxygen interface 1 301 and anesthetic gas injection port 303. A trigger gas valve 1 306 provided on one side controls the injection amount of oxygen interface 1 301 and anesthetic gas injection port 303 respectively. The internal volume of the mixing chamber 601 mixes and critically processes the gases, and then the impeller 603 drives the oxygen and anesthetic gas to mix and proportion them. During the mixing process, the servo motor 406 is turned on, which drives the drive shaft 404 to rotate, which drives the ball screw 602 provided on one side to rotate, which drives the piston 604 and the sealing rubber rings 607 provided on both sides to move, thereby adjusting and controlling the space of the mixing chamber 601. At the same time, the one-way electric valve 605 provided on one side is used to directly inject the mixed gas inside into the interior of the air supply hose 606 provided on one side, and then the air supply hose 606 is used to directly inject the anesthetic gas into the purification chamber 701. The number of HEPA filter elements 706 inside the purification chamber 701 is controlled, and the two sides of the two groups of filter element support plates 703 are guided and positioned by rectangular guide rods 704. At the same time, the filter element support plates 703 arranged at the top are used to lift the ultraviolet lamp 702. After the ultraviolet lamp 702 and the multiple groups of HEPA filter elements 706 are installed, the symmetrically arranged sealing rubber rings 607 are used to block the gaps to prevent gas from escaping from the gaps, thereby reducing the pressure during the filtration process. After the gas is injected into the purification chamber 701, it passes through the HEPA filter 706 to effectively intercept microbial aerosols and particulate matter with a diameter of 0.3 μm or more, blocking the risk of pathogens spreading through the respiratory circuit. The ultraviolet lamp 702 performs secondary sterilization on the gas passing through the HEPA filter 706. The glass panel 707 shields and isolates the bottom of the ultraviolet lamp 702 to prevent the anesthetic gas from escaping into the ultraviolet lamp 702 and affecting its purity. The ultraviolet lamp 702 kills viruses, bacteria and other microorganisms that the filter fails to intercept. The filtered anesthetic gas is then directly injected into the interior of the arc hood through the discharge connector 405 provided once. The internal pressure of the mixing chamber 601 is detected by the internal pressure gauge 8 to sense the anesthetic gas. Of course, the piston 604 is also driven by the servo motor 406 to move, thereby applying pressure to the space where the mixed anesthetic gas already exists, thereby accelerating the flow and discharge speed of the gas. After the delivery of the anesthetic gas is completed, the patient's condition is observed and the one-way electric valve 605 is closed to stop the outflow of the anesthetic gas. The anesthetic gas content is then controlled by the oxygen concentration sensor 402. By opening the trigger gas circuit valve 306 provided at one end of the delivery tube 305, pure oxygen is directly injected into the breathing mask to relieve the symptoms of anesthesia.

[0035] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. An anesthesia drug supply device for anesthesia department, comprising a base, a pressure gauge, a control button, and an anesthesia concentration probe. The base is hingedly connected to a door on the outside. An injection mechanism is provided directly above the base. The injection mechanism injects oxygen into the device in two groups and a single group of anesthetic gas, thereby completing the preparation of the anesthetic agent before mixing. A discharge mechanism is provided on one side of the injection mechanism. The discharge mechanism discharges the mixed oxygen and anesthetic gas after mixing and directly discharges pure oxygen. A control panel is provided on the outside of the discharge mechanism, a pressure gauge is provided on the outside of the control panel, and multiple groups of control buttons are provided on the surface of the control panel. The proportioning mechanism is provided on one side of the injection mechanism, and the proportioning mechanism adjusts the proportioning space according to the use requirements and the one-time injection volume; A purification mechanism is provided on the other side of the proportioning mechanism. The purification mechanism is provided inside the injection mechanism and purifies the proportioned anesthetic gas to prevent cross infection of microorganisms.

2. The anesthesia drug supply device for anesthesia department according to claim 1, characterized in that: The injection mechanism includes an oxygen interface 1, an oxygen interface 2, an anesthetic gas injection end, an equipment shell, a delivery pipe and a trigger gas circuit valve 1. The oxygen interface 1 and the oxygen interface 2 are arranged through one side of the equipment shell, one side of the oxygen interface 2 is connected to the delivery pipe, the anesthetic gas injection end is arranged through the top of the equipment shell, one end of the oxygen interface 1 is connected to one end of a group of trigger gas circuit valves 1 through a pipeline, one end of the anesthetic gas injection end is connected to another end of the group of trigger gas circuit valves 1 through a pipeline, and the other end of the group of trigger gas circuit valves 1 is connected to the input end of the mixing chamber.

3. The anesthesia drug supply device for anesthesia department according to claim 2, characterized in that: The second oxygen interface is connected to the discharge mechanism through a delivery pipe provided on one side, and the delivery pipe is connected to one group of discharge joints.

4. The anesthesia drug supply device for anesthesia department according to claim 3, characterized in that: The discharge mechanism includes a second trigger gas circuit valve, an oxygen concentration sensor, a solenoid valve, a drive shaft, a discharge joint and a servo motor. The second trigger gas circuit valve is installed on one side of the mixing chamber, the oxygen concentration sensor is installed on the other end of the second trigger gas circuit valve, the output end of the oxygen concentration sensor is connected to the discharge joint, the servo motor is installed on one side of the oxygen concentration sensor, and the output end of the servo motor is connected to the drive shaft.

5. The anesthesia drug supply device for anesthesia department according to claim 4, characterized in that: The servo motor is connected to the outer side of the ball screw through a driving shaft connected to the output end, and the ball screw is arranged through one end of the mixing chamber.

6. The anesthesia drug supply device for anesthesia department according to claim 5, characterized in that: The proportioning mechanism includes a mixing chamber, a ball screw, an impeller, a piston, a one-way electric valve, an air supply hose and a sealing rubber ring. The ball screw is arranged inside the mixing chamber, the outside of the ball screw is connected to the piston, and the sealing rubber ring is symmetrically arranged on the outside of the piston. The top polished rod part of the ball screw is connected to the impeller, and the impeller is arranged inside the mixing chamber. The one-way electric valve is arranged on one side of the piston, and the output end of the one-way electric valve is connected to one end of the air supply hose, and the other end of the air supply hose is connected to one side of the purification chamber.

7. The anesthesia drug supply device for anesthesia department according to claim 6, characterized in that: The purification mechanism includes a purification chamber, an ultraviolet lamp, a filter element support plate, a guide rod, a sealing gasket, a HEPA filter element and a glass panel. The ultraviolet lamp is arranged inside the purification chamber, the filter element support plate is arranged directly below the ultraviolet lamp, the HEPA filter element is arranged directly below the filter element support plate, another set of filter element support plates is arranged below the HEPA filter element, sealing gaskets are fitted on both sides of the filter element support plates, the guide rods are symmetrically arranged inside the purification chamber, the filter element support plate is connected to the outside of the guide rods, and a glass panel is fitted directly above the filter element support plate.

8. The anesthesia drug supply device for anesthesia department according to claim 7, characterized in that: The purification chamber is connected to the upper and lower sides of the HEPA filter element through a filter element supporting plate symmetrically arranged inside, and a top sampling rectangular opening structure of the filter element supporting plate is arranged at the top.

9. The anesthesia drug supply device for anesthesia department according to claim 8, characterized in that: The control button is connected to a PLC or a microcontroller through a low-voltage circuit and is respectively connected to the first triggering gas circuit valve and the second triggering gas circuit valve.

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