Anesthetic atomizing device for anesthesia in operating room

Abstract

The invention discloses an anesthetic atomizing device for anesthesia in an operating room, and relates to the technical field of medical instruments. The device comprises an atomizing chamber, a protective sleeve is arranged on the periphery of the atomizing chamber and connected with the atomizing chamber in a sealed mode, a storage chamber is arranged above the atomizing chamber, a feeding pipe is arranged at the feeding end of the storage chamber, a plurality of feeding pipes are arranged below the storage chamber, and feeding adjusting assemblies are arranged at the joints of the feeding pipes and the storage chamber. The lower end of the feeding pipe is arranged at the bottom of an inner cavity of the atomizing chamber, and a one-way film is arranged in the feeding pipe. An atomizing nozzle is arranged at the bottom of the atomizing chamber and is connected with an oxygen conveying pipe; a second one-way valve is arranged at the outlet end of the upper side of the atomizing chamber, an air outlet pipe is arranged at the outlet end of the second one-way valve, and the other end of the air outlet pipe is connected with the mask. The device is convenient to use, high in atomization efficiency, capable of conveniently regulating and controlling the anesthetic dosage and the gas flow and suitable for being used in multiple scenes.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an anesthetic atomizing device for operating room anesthesia. Background Technology

[0002] Anesthetics are drugs or non-drug methods that cause temporary and reversible loss of sensation and pain in the body or a localized area. They are often used in surgery or the treatment of certain diseases. Types of anesthetics include inhaled anesthetics, intravenous anesthetics, and combined anesthetics for animals.

[0003] Inhaled anesthetics are a class of volatile liquids or gases primarily used for general and continuous anesthesia. They enter the body through the respiratory tract, inhibiting the cerebral cortex from superficial to deep, causing loss of consciousness. Inhaled anesthetics offer advantages such as stable anesthesia, good muscle relaxation, and ease of surgery. Inhaled anesthetics require a nebulizer to atomize the prepared anesthetic so that it can be inhaled.

[0004] Using conventional nebulizers to atomize anesthetics results in low atomization efficiency and is very inconvenient to operate; while dedicated anesthetic nebulizers are bulky, expensive, and inconvenient for medical work. Therefore, there is a need for a small, easy-to-use nebulizer with high atomization efficiency. Summary of the Invention

[0005] To address the aforementioned shortcomings, this invention provides an anesthetic nebulizer for operating room anesthesia, which is convenient to use, has high nebulization efficiency, and allows for easy adjustment of anesthetic dosage and gas flow rate, making it suitable for use in various scenarios.

[0006] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is as follows: An anesthetic nebulizer for operating room anesthesia is provided, comprising a nebulizing chamber, a protective sleeve surrounding the nebulizing chamber, the protective sleeve being sealed to the nebulizing chamber, a storage chamber above the nebulizing chamber, a feed pipe at the feed inlet end of the storage chamber, several feeding pipes below the storage chamber, a feeding adjustment component at the connection between the feeding pipes and the storage chamber, the lower end of the feeding pipes being located at the bottom of the nebulizing chamber cavity, and a one-way membrane being installed inside the feeding pipes; a nebulizing nozzle is located at the bottom of the nebulizing chamber, and the nebulizing nozzle is connected to an oxygen delivery pipe; a second one-way valve is located at the upper outlet end of the nebulizing chamber, an outlet pipe is located at the outlet end of the second one-way valve, the other end of the outlet pipe is connected to a face mask, and a flow adjustment component is installed inside the outlet pipe;

[0007] The feeding adjustment component includes an electromagnet, which is installed on the storage chamber. The output end of the electromagnet is connected to the connecting block via a reset spring. An iron ring is installed inside the connecting block, and a trapezoidal piston is installed at the bottom of the connecting block. The upper width of the trapezoidal piston is the same as the diameter of the feeding pipe, and the lower width of the trapezoidal piston is smaller than the diameter of the feeding pipe. The electromagnet can attract the connecting block with the iron ring to move upward.

[0008] The beneficial effects of adopting the present invention are as follows: Before nebulization, the anesthetic is introduced into the storage chamber through the feed tube, and then the anesthetic flows into the nebulization chamber through the feeding tube. Oxygen enters from the oxygen delivery tube and is nebulized through the nebulizer nozzle, carrying the anesthetic into the outlet tube through the one-way valve two, and is finally inhaled by the patient through the mask. During this process, the feeding adjustment component works, adjusting the electromagnet's attraction force to move the connecting block with the iron ring upward and compress the return spring. At this time, part of the trapezoidal piston is pulled out of the feeding tube, and the anesthetic is fed into the feeding tube through the gap between the trapezoidal piston and the feeding tube opening. The electromagnet's attraction force can be further increased to widen the gap between the trapezoidal piston and the feed tube opening, thereby increasing the feeding speed. After feeding is complete, the electromagnet is turned off, and the connecting block moves downward under the action of the return spring and gravity, eventually completely blocking the feed tube with the trapezoidal piston. While the width of the two base surfaces of the trapezoidal piston is fixed, the size of its waist can be controlled; a larger waist results in higher feeding control precision. Simultaneously, the flow rate of the atomized gas can be adjusted via the flow regulating component to regulate the dosage of anesthetic and the gas flow rate. The entire device is compact, easy to move, and suitable for various medical scenarios. A protective sleeve is installed around the atomization chamber to protect the entire atomization device and prevent leakage of atomized gas and anesthetic, avoiding safety hazards. A one-way membrane is installed inside the feed tube, allowing only anesthetic to be delivered from the feed tube into the atomization chamber, preventing atomized gas from flowing back into the storage chamber. One-way valve two allows only atomized gas to exit from the atomization chamber into the outlet pipe.

[0009] Furthermore, the flow regulating component includes a fixed plate and a movable plate that match each other. The fixed plate is located inside the air outlet pipe near the one-way valve. The movable plate has several through holes and can slide left and right on the air outlet pipe. A slider connected to the movable plate is provided on the air outlet pipe, and the movable plate and the slider are sealed to the air outlet pipe. The fixed plate has several air outlet holes, and the movable plate has several adjusting blocks that match the air outlet holes. The adjusting blocks have a triangular cross-section, and the bottom width of the adjusting block is the same as the diameter of the air outlet hole.

[0010] The beneficial effects of adopting the above-mentioned further solution are as follows: When the nebulized gas enters the outlet pipe through the one-way valve, the slider is moved towards the outlet end of the outlet pipe, causing the movable plate to slide towards the outlet end. At this time, the adjusting block slides towards the outlet end and exposes a gap with the outlet hole. The nebulized gas passes through the outlet hole, the gap between the outlet hole and the adjusting block, the through hole on the movable plate, and the remaining outlet pipe, and finally enters the mask for the patient to inhale. When the movable plate and the fixed plate are completely close together, the bottom width of the triangular adjusting block is the same as the diameter of the outlet hole, which can completely block the outlet hole, so no nebulized gas will pass through. During the process of sliding the movable block towards the outlet end, a gap is exposed between the adjusting block and the outlet hole. The larger the sliding distance, the larger the gap. By controlling the sliding distance, the flow rate of other nebulization components can be controlled, thereby achieving control of the nebulization flow rate. Moreover, the larger the height value of the triangular adjusting block, the smaller the adjustment range when moving the same distance, and the higher the precision. The movable plate and the slider are all sealed to the outlet pipe to avoid the leakage of nebulized gas and avoid safety hazards.

[0011] Furthermore, the lengths of the fixed plate and the movable plate are the same as the inner diameter of the air outlet pipe.

[0012] The advantages of adopting the above-mentioned further solution are: it makes it easier for the fixed plate to completely seal the air outlet pipe, and the atomized gas only passes through the air outlet hole on the fixed plate. It also makes it easier for the movable plate to slide freely in the air outlet pipe.

[0013] Furthermore, a one-way valve and a pressure relief valve are installed on the lower side wall of the atomization chamber, with the outlet end of the one-way valve leading into the atomization chamber.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the one-way valve leads to the inside of the atomizing chamber, which facilitates the recovery of atomized material in case of emergency where it overflows into the protective sleeve, thus avoiding safety hazards; similarly, the pressure relief valve is used for emergency release when the pressure in the atomizing chamber is too high.

[0015] Furthermore, the lower outlet of the feed pipe is lower than the atomizing nozzle.

[0016] The beneficial effects of adopting the above-mentioned further solution are: to prevent the atomized gas generated by the atomizing nozzle from directly entering the feeding pipe, and to directly prevent other atomized gases from entering the storage chamber through the feeding pipe in reverse through the feeding pipe, combined with the one-way membrane in the feeding pipe.

[0017] Furthermore, a heating tube is provided on the outer sleeve of the feeding tube, and a heating wire is wound around the feeding tube.

[0018] The beneficial effects of adopting the above-mentioned further solution are: if it is necessary to heat or accelerate the atomization of the anesthetic gas, it can be heated by a heating wire; the heating wire is set inside the heating tube, which can also heat and diffuse the atomized gas around the heating tube.

[0019] Furthermore, a drain pipe is installed at the bottom of the atomization chamber.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the drain pipe is used for drainage after use, and to remove residual liquid in the atomization chamber.

[0021] Furthermore, the anesthetic nebulizer for operating room anesthesia also includes a control device, with the electromagnet and nebulizer nozzle both connected to the control device.

[0022] The beneficial effects of adopting the above-mentioned further solution are: by controlling the electromagnet and atomizing nozzle and other components through the control device, the automation level of the device is improved, and it is also easier to control and adjust, saving manpower and material resources. Attached Figure Description

[0023] Figure 1 A schematic diagram of an anesthetic nebulizer used in the operating room.

[0024] Figure 2 This is a schematic diagram of the feed tube;

[0025] Figure 3 This is a schematic diagram of an electromagnet;

[0026] Figure 4 This is a schematic diagram of the air outlet pipe;

[0027] Figure 5 This is a schematic diagram of the adjustment block;

[0028] The components are as follows: 1. Atomizing chamber; 2. Protective cover; 3. Pressure relief valve; 4. Atomizing nozzle; 5. Oxygen supply pipe; 6. Drain pipe; 7. One-way valve one; 8. Face mask; 9. Air outlet pipe; 10. One-way valve two; 11. Storage chamber; 12. Feed pipe; 13. Electromagnet; 14. Feeding pipe; 15. Heating tube; 16. Heating wire; 17. One-way membrane; 18. Return spring; 19. Connecting block; 20. Trapezoidal piston; 21. Fixed plate; 22. Movable plate; 23. Sliding block; 24. Air outlet; 25. Adjusting block. Detailed Implementation

[0029] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0030] In one embodiment of the present invention, such as Figure 1-5As shown, an anesthetic nebulizer for operating room anesthesia is provided, including a nebulizing chamber 1, a protective sleeve 2 surrounding the nebulizing chamber 1, the protective sleeve 2 being sealed to the nebulizing chamber 1, a storage chamber 11 above the nebulizing chamber 1, a feed pipe 12 at the feed inlet end of the storage chamber 11, several feeding pipes 14 below the storage chamber 11, a feeding adjustment component at the connection between the feeding pipes 14 and the storage chamber 11, the lower end of the feeding pipes 14 being located at the bottom of the inner cavity of the nebulizing chamber 1, and a one-way membrane 17 being installed inside the feeding pipes 14; a nebulizing nozzle 4 at the bottom of the nebulizing chamber 1, the nebulizing nozzle 4 being connected to an oxygen delivery pipe 5; and an outlet end on the upper side of the nebulizing chamber 1. A one-way valve 2 10 is provided, and an air outlet pipe 9 is provided at the outlet end of the one-way valve 2 10. The other end of the air outlet pipe 9 is connected to the mask 8. A flow regulating component is provided inside the air outlet pipe 9. The feeding regulating component includes an electromagnet 13, which is provided on the storage chamber 11. The output end of the electromagnet 13 is connected to the connecting block 19 through a reset spring 18. An iron ring is provided inside the connecting block 19. A trapezoidal piston 20 is provided at the lower part of the connecting block 19. The upper width of the trapezoidal piston 20 is the same as the diameter of the feeding pipe 14, and the lower width of the trapezoidal piston 20 is smaller than the diameter of the feeding pipe 14. The electromagnet 13 can attract the connecting block 19 with the iron ring to move upward.

[0031] Before nebulization, the anesthetic is introduced into the storage chamber 11 through the feed tube 12. Then, the anesthetic flows into the nebulization chamber 1 through the feed tube 14. Oxygen enters from the oxygen supply tube 5 and is nebulized through the nebulizer nozzle 4, carrying the anesthetic through the one-way valve 10 into the outlet tube 9, and finally inhaled by the patient through the mask 8. During this process, the feeding adjustment component operates, adjusting the suction force of the electromagnet 13 to move the connecting block 19 with the iron ring upwards and compress the return spring 18. At this time, part of the trapezoidal piston 20 is pulled out of the feed tube 14, and the anesthetic enters the feed tube 14 through the gap between the trapezoidal piston 20 and the opening of the feed tube 14. The suction force of electromagnet 13 is further increased to increase the gap between trapezoidal piston 20 and the opening of feeding tube 14, thereby increasing the feeding speed. After feeding is completed, electromagnet 13 is turned off, and connecting block 19 moves downward under the action of return spring 18 and gravity, until trapezoidal piston 20 completely blocks feeding tube 14. The width of the two bottom surfaces of trapezoidal piston 20 is fixed, but the size of its waist can be controlled. The larger the waist, the higher the control accuracy of feeding. At the same time, the flow rate of atomized gas can be adjusted by the flow regulating component to achieve the adjustment of anesthetic dosage and gas flow rate. The whole device is small in size, easy to move, and suitable for medical work in multiple scenarios. The atomization chamber 1 is surrounded by a protective sleeve 2 to protect the entire atomization device and to prevent leakage of atomized gas and anesthetics, thus avoiding safety hazards. A one-way membrane 17 is installed inside the feed pipe 14 to allow anesthetics to be delivered from the feed pipe 14 into the atomization chamber 1, while preventing atomized gas from flowing back from the feed pipe 14 into the storage chamber 11. One-way valve 10 allows atomized gas to flow from the atomization chamber 1 into the outlet pipe 9.

[0032] The flow regulating assembly includes a fixed plate 21 and a movable plate 22 that are matched with each other. The fixed plate 21 is disposed inside the air outlet pipe 9 near the one-way valve 10. The movable plate 22 is provided with several through holes and can slide left and right on the air outlet pipe 9. The air outlet pipe 9 is provided with a slider 23 connected to the movable plate 22, and the movable plate 22 and the slider 23 are sealed to the air outlet pipe 9. The fixed plate 21 is provided with several air outlet holes 24, and the movable plate 22 is provided with several adjusting blocks 25 that match the air outlet holes 24. The adjusting block 25 has a triangular cross section, and the bottom width of the adjusting block 25 is the same as the diameter of the air outlet hole 24. When the atomized gas enters the outlet pipe 9 through the one-way valve 210, the slider 23 is moved towards the outlet end of the outlet pipe 9, causing the movable plate 22 to slide towards the outlet end. At this time, the adjusting block 25 slides towards the outlet end and exposes a gap with the outlet hole 24. The atomized gas passes through the outlet hole 24, the gap between the outlet hole 24 and the adjusting block 25, the through hole on the movable plate 22, and the remaining outlet pipe 9, and finally enters the mask 8 for the patient to inhale. When the movable plate 22 and the fixed plate 21 are completely close together, the bottom width of the triangular-shaped adjusting block 25 is perpendicular to the outlet hole 24. With the same diameter, the air outlet 24 can be completely blocked, preventing any atomized gas from passing through. As the movable block slides towards the outlet, a gap is exposed between the adjusting block 25 and the air outlet 24. The larger the sliding distance, the larger the gap. By controlling the sliding distance, the flow rate of other atomized components can be controlled, thus controlling the atomization flow rate. Furthermore, the larger the height value of the triangular adjusting block 25, the smaller the adjustment range and the higher the precision when moving the same distance. The movable plate 22 and the slider 23 are all sealed to the air outlet pipe 9 to prevent atomized gas from overflowing and to avoid safety hazards.

[0033] Meanwhile, the lengths of the fixed plate 21 and the movable plate 22 are the same as the inner diameter of the outlet pipe 9; this allows the fixed plate 21 to completely seal the outlet pipe 9, with the atomized gas passing only through the outlet hole 24 on the fixed plate 21, and also allows the movable plate 22 to slide freely within the outlet pipe 9. A one-way valve 7 and a pressure relief valve 3 are installed on the lower side wall of the atomization chamber 1. The outlet of the one-way valve 7 leads into the atomization chamber 1; the one-way valve 7 leads into the interior of the atomization chamber 1, facilitating the recovery of atomized gas in case of overflow into the protective sleeve 2, thus preventing safety hazards. Similarly, the pressure relief valve 3 is used for emergency release when the pressure in the atomization chamber 1 is too high. The lower outlet of the feed pipe 14 is lower than that of the atomizing nozzle 4; this prevents the atomized gas generated by the atomizing nozzle 4 from directly entering the feed pipe 14. Combined with the one-way membrane 17 in the feed pipe 14, this directly prevents atomized gas from flowing back into the storage chamber 11 via the feed pipe 14. A heating tube 15 is fitted over the feeding tube 14, and a heating wire 16 is wound around the feeding tube 14. Heating of the nebulized gas containing anesthetic agents, or acceleration of nebulization, can be achieved through the heating wire 16. The heating wire 16, located inside the heating tube 15, can also heat and diffuse the nebulized gas surrounding the heating tube 15. A drain pipe 6 is located at the bottom of the nebulization chamber 1; the drain pipe 6 is used for draining residual liquid after use. The anesthetic nebulizer for operating room anesthesia also includes a control device. The electromagnet 13 and the nebulizing nozzle 4 are connected to the control device, which is an Omron CP1H-X40DT-D PLC controller. The control device controls the electromagnet 13 and the nebulizing nozzle 4, improving the automation level of the device, facilitating control and adjustment, and saving manpower and resources.

[0034] Although specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims are still within the scope of protection of this patent.

Claims

1. A device for nebulizing anesthetic agents for use in operating rooms, characterized in that, The device includes an atomizing chamber surrounded by a protective sleeve that is sealed to the chamber. A storage chamber is located above the atomizing chamber, with a feed pipe at its inlet end and several feeding pipes below. A feeding adjustment assembly is located at the connection point between the feeding pipes and the storage chamber. The lower end of each feeding pipe is located at the bottom of the atomizing chamber's interior, and a one-way membrane is installed inside each feeding pipe. An atomizing nozzle is located at the bottom of the atomizing chamber and connected to an oxygen delivery pipe. A second one-way valve is located at the upper outlet end of the atomizing chamber, with an outlet pipe at its outlet end. The other end of the outlet pipe is connected to a face mask, and a flow adjustment assembly is installed inside the outlet pipe. The feeding adjustment assembly includes an electromagnet, which is mounted on the storage chamber. The output end of the electromagnet is connected to a connecting block via a reset spring. An iron ring is provided inside the connecting block, and a trapezoidal piston is provided at the lower part of the connecting block. The upper width of the trapezoidal piston is the same as the diameter of the feeding pipe, and the lower width of the trapezoidal piston is smaller than the diameter of the feeding pipe. The electromagnet can attract the connecting block with the iron ring to move upward.

2. The anesthetic nebulizer for operating room anesthesia as described in claim 1, characterized in that, The flow regulating assembly includes a fixed plate and a movable plate that match each other. The fixed plate is disposed inside the air outlet pipe near the one-way valve. The movable plate has several through holes and can slide left and right on the air outlet pipe. A slider connected to the movable plate is disposed on the air outlet pipe, and the movable plate and the slider are sealed to the air outlet pipe. The fixed plate has several air outlet holes, and the movable plate has several adjusting blocks that match the air outlet holes. The adjusting blocks have a triangular cross-section, and the bottom width of the adjusting block is the same as the diameter of the air outlet hole.

3. The anesthetic nebulizer for operating room anesthesia as described in claim 2, characterized in that, The lengths of the fixed plate and the movable plate are the same as the inner diameter of the air outlet pipe.

4. The anesthetic nebulizer for operating room anesthesia as described in claim 1, characterized in that, A one-way valve and a pressure relief valve are provided on the lower side wall of the atomizing chamber, with the outlet end of the one-way valve leading into the atomizing chamber.

5. The anesthetic nebulizer for operating room anesthesia as described in claim 1, characterized in that, The lower outlet of the feed pipe is lower than the atomizing nozzle.

6. The anesthetic nebulizer for operating room anesthesia as described in claim 1, characterized in that, The feeding tube is fitted with a heating tube, and a heating wire is wound around the feeding tube.

7. The anesthetic nebulizer for operating room anesthesia as described in claim 1, characterized in that, A drain pipe is installed at the bottom of the atomization chamber.

8. The anesthetic nebulizer for operating room anesthesia as described in claim 1, characterized in that, It also includes a control device, and the electromagnet and the atomizing nozzle are both connected to the control device.

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