Anesthesia spraying device

Abstract

The invention relates to the technical field of anesthesia spraying devices, and discloses an anesthesia spraying device which comprises a shell and further comprises a connecting piece and a quantifying assembly, a communicating pipe is arranged in the shell, the quantifying assembly is arranged in the shell, and a gas storage cavity, a medicine storage cavity, a quantifying cavity and an atomizing cavity are formed in the shell; the quantifying assembly comprises a first spring, a first piston, a separation membrane, a second spring, a push rod and a second piston, the first piston is arranged in the air storage cavity, the first spring is arranged between the first piston and the air storage cavity, the separation membrane is arranged in the communicating pipe, a manual one-way valve is arranged between the medicine storage cavity and the quantifying cavity, and the second piston is arranged in the quantifying cavity; the push rod is arranged at one end of the second piston, a positioning ring is arranged in the quantifying cavity, the second spring sleeves the outer wall of the push rod, and a pressure one-way valve is arranged between the atomizing cavity and the quantifying cavity; a certain amount of anesthetic can be conveyed into the spraying cavity when a medical worker pushes the push rod once, so that the medical worker can accurately control the anesthetic, and the safety of an anesthesia operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of anesthetic spray devices, and particularly relates to an anesthetic spray device. Background Art

[0002] Before performing anesthetic surgery using an anesthetic nebulizer, it is necessary to use the anesthetic nebulizer to perform multiple anesthetic operations on the throat area. Because if only a single spray is performed, it may not cover all the areas that need to be anesthetized, affecting the normal progress of the surgery. By performing multiple sprays, it can ensure that the drug continuously acts on the target area, gradually enhancing the anesthetic effect and ensuring the normal progress of the surgery.

[0003] The prior art discloses (Publication No.: CN108096691B) a nebulizer for the anesthesiology department, including a connecting tube and a liquid medicine bottle. The bottle mouth of the liquid medicine bottle is hermetically connected with an atomizing tube. The bottom end of the atomizing tube extends into the interior of the liquid medicine bottle and is fixedly connected to the bottom of the liquid medicine bottle. And the top wall of the atomizing tube is engraved with threads that cooperate with the second internal threaded tube. A plurality of liquid inlet holes are opened on the bottom wall of the atomizing tube. And an ultrasonic atomizing sheet is installed at the bottom end inside the atomizing tube. The tail end of the connecting tube is connected with a first internal threaded tube. A purification device is arranged below the first internal threaded tube. The middle section bottom of the connecting tube is connected with a second internal threaded tube. The front end of the connecting tube is provided with a sealing device. The connecting tube is connected to a fog transmission hose through the sealing device. The front end of the fog transmission hose is connected with a nozzle. The nebulizer of the prior art has a simple structure and outstanding operation stability effect, which helps to improve work efficiency and medical quality.

[0004] The prior art enables the nebulizer to continuously spray by arranging the ultrasonic atomizing sheet at the bottom of the liquid medicine bottle. However, since anesthetic surgery requires multiple sprays, and the amount of each spray may be different. If the amount of each anesthetic spray cannot be accurately controlled, there may be a situation where the anesthetic dosage is too much or too little. An excessive anesthetic dosage may affect the patient's postoperative recovery. An insufficient anesthetic dosage may not effectively relieve pain and affect the normal operation of the surgery. For this reason, we propose an anesthetic spray device to solve the above problems. Summary of the Invention

[0005] The present invention aims to provide an anesthetic spray device to solve the problem that the existing anesthetic nebulizer cannot accurately control the amount of each anesthetic spray.

[0006] To achieve the above object, the present invention adopts the following technical solution: An anesthetic spray device includes a housing, the housing is provided with a mist discharge port, a mist discharge pipe and a power component are arranged in the housing, the mist discharge pipe is communicated with the mist discharge port, and further includes a connecting piece and a metering component. The connecting piece can be connected to the mist discharge port, a communicating pipe is arranged in the housing, the metering component is arranged in the housing, an air storage cavity, a medicine storage cavity, a metering cavity and an atomization cavity are formed in the housing, and the air storage cavity, the medicine storage cavity, the metering cavity and the atomization cavity are sequentially communicated through the communicating pipe. An ultrasonic atomization sheet is arranged in the atomization cavity. The metering component includes a first spring, a first piston, a separation membrane, a second spring, a push rod and a second piston. The first piston is arranged in the air storage cavity, the first spring is arranged between the first piston and the air storage cavity, the separation membrane is arranged in the communicating pipe between the air storage cavity and the medicine storage cavity, a manual one-way valve is arranged in the communicating pipe between the medicine storage cavity and the metering cavity, the second piston is arranged in the metering cavity, the push rod is arranged at one end of the second piston, and the end of the push rod away from the second piston penetrates out of the outer shell. A positioning ring is arranged in the metering cavity, the second spring is sleeved on the outer wall of the push rod and is located between the second piston and the metering cavity. A pressure one-way valve is arranged in the communicating pipe between the atomization cavity and the metering cavity, and the opening pressure of the pressure one-way valve is greater than the maximum pressure of the air storage cavity.

[0007] The beneficial effect of this solution is that when the first piston pushes gas into the medicine storage cavity, it promotes the anesthetic agent to enter the metering cavity through the manual one-way valve. Under the action of the pressure provided by the air storage cavity, the second piston moves towards the positioning ring until it abuts against the positioning ring. And under the action of the pressure one-way valve, the medicine in the metering cavity cannot enter the atomization cavity. At this time, the amount of anesthetic agent entering the metering cavity is certain. Then the medical staff apply pressure to the metering cavity by pushing the push rod, so that the pressure in the metering cavity is greater than the opening pressure of the pressure one-way valve, and then push the anesthetic agent into the spray cavity for spraying. When all the anesthetic agent in the metering cavity is completely pushed into the spray cavity, the medical staff release the push rod. At this time, the air storage cavity continues to apply pressure to the medicine storage cavity, promoting the anesthetic agent in the medicine storage cavity to enter the metering cavity, and then pushing the push rod to abut against the positioning ring again, which is convenient for the medical staff to continue to push the anesthetic agent. During this process, every time the medical staff pushes the push rod, a fixed amount of anesthetic agent can be delivered into the spray cavity, which is convenient for the medical staff to accurately control the anesthetic agent and improve the safety of the anesthetic operation.

[0008] Preferably, as an improvement, the power component includes an installation shell, an air pump and a filter screen. The installation shell is arranged at one end of the housing away from the mist discharge port, and the installation shell is communicated with the mist discharge pipe. The air pump is arranged in the installation shell. An air inlet is arranged at one end of the installation shell away from the mist discharge port, and the filter screen is arranged in the air inlet.

[0009] The beneficial effect is that the installation shell is used to install the air pump, the air pump is used to blow the atomized anesthetic agent out of the housing, and the filter screen can filter bacteria and impurities in the air to avoid the influence of bacteria and impurities on the efficacy of the anesthetic agent.

[0010] Preferably, as an improvement, the connecting member includes a docking pipe, an atomizing hose, and a fixing ring. The docking pipe is arranged in a ring shape and can be docked with the mist exhaust port. A plurality of rubber strips are provided on the inner wall of the docking pipe, and an installation groove is formed in the docking pipe. The fixing ring is arranged in the installation groove.

[0011] The beneficial effects are as follows: The docking pipe is used to dock with the mist exhaust port, the atomizing hose is used to transport the atomized anesthetic agent to the place where the patient needs anesthesia, the fixing ring is used to squeeze the rubber strip to cause the rubber strip to deform, and the installation groove is used to install the fixing ring. When the docking pipe is docked with the mist exhaust port, the rubber strip is squeezed and deformed, so as to fix the docking pipe on the outer wall of the mist exhaust port.

[0012] Preferably, as an improvement, a first groove is formed at one end of the docking pipe close to the mist exhaust port.

[0013] The beneficial effects are as follows: The first groove is used to reduce the distance between the outer wall of the docking pipe and the installation groove, so as to facilitate medical staff to use sharp objects to break the fixing ring, so that the fixing ring no longer squeezes the rubber strip, and it is convenient for medical staff to separate the docking pipe from the mist exhaust port.

[0014] Preferably, as an improvement, a trigger cavity and a firing cavity are formed in the shell, and the firing cavity is communicated with the trigger cavity. An impact assembly is arranged between the trigger cavity and the firing cavity. The impact assembly includes a third spring, a moving pin, a moving rod, a trigger block, and an impact rod. The moving rod is arranged at one end of the first piston, and the end of the moving rod away from the first piston penetrates out of the air storage cavity and extends into the trigger cavity. The trigger block is arranged at the end of the moving rod away from the first piston. One end of the trigger block away from the axis of the moving rod is set as an inclined surface. The moving pin is arranged in the trigger cavity. The third spring is arranged between the moving pin and the trigger cavity. A trapezoidal groove is formed in the middle of the moving pin. The trapezoidal groove is set as a right trapezoid, and the inclined surface of the trigger block abuts against the inclined surface of the trapezoidal groove. An irregular-shaped block is arranged at one end of the moving pin away from the third spring. The impact rod is arranged in the firing cavity, and the end of the impact rod close to the mist exhaust port penetrates out of the shell. A limiting ring is arranged in the firing cavity. An installation ring is arranged on the outer wall of the impact rod. A fourth spring is arranged between the installation ring and the limiting ring, and the fourth spring is sleeved on the outer wall of the impact rod. A frustum is arranged at the end of the impact rod away from the mist exhaust port, and the frustum can abut against the irregular-shaped block. A through groove communicated with the trigger cavity is formed in the shell, and the trigger block can move into the through groove.

[0015] The beneficial effects are as follows: The medical staff presses the impact rod downward into the firing chamber until the frustum at the lower end of the impact rod contacts the inclined surface of the special-shaped block. As the impact rod continues to descend, the arc surface of the frustum presses the special-shaped block downward, causing the moving pin to press the third spring and move into the trigger chamber until the frustum and the special-shaped block are completely staggered. Subsequently, the moving pin moves into the firing chamber under the action of the third spring to reset. At this time, the special-shaped block is located above the frustum. Then, the medical staff releases the impact rod, causing the impact rod to move upward under the action of the fourth spring until the frustum at the lower end of the impact rod abuts against the special-shaped block. At this time, the impact rod does not contact the fixed ring, and the fourth spring is in a compressed state. When all the air in the air storage chamber is completely delivered to the medicine storage chamber, that is, all the anesthetic in the medicine storage chamber enters the metering chamber. At this time, the special-shaped block is separated from the frustum, causing the fourth spring to be quickly released from the compressed state, thereby pushing the impact rod upward until the impact rod collides with the fixed ring, prompting the fixed ring to break. After the fixed ring breaks, it will no longer squeeze the rubber strip, and the medical staff can easily separate the docking tube from the spray port, facilitating the replacement of the connecting piece and saving the time required for disassembly. At the same time, the impact force of the impact rod on the fixed ring will also be transmitted to the housing. After receiving the impact force, the housing vibrates, thereby converging the anesthetic attached to the inner walls of the atomizing chamber and the mist discharge pipe, causing the condensed anesthetic to flow back to the ultrasonic atomizing sheet in the atomizing chamber, thereby making full use of the anesthetic and preventing the insufficient amount of anesthetic during anesthesia spraying from affecting the normal progress of the operation.

[0016] Preferably, as an improvement, a semi-circular groove is formed on the outer wall of the docking tube. A second groove symmetrical to the first groove is formed at one end of the docking tube close to the mist discharge port, and both ends of the semi-circular groove are respectively communicated with the first groove and the second groove. An arc-shaped block is arranged in the semi-circular groove, and the impact rod can extend into the semi-circular groove and abut against the arc-shaped block.

[0017] The beneficial effects are as follows: The semi-circular groove is used to install the arc-shaped block. The rotating docking tube can push the impact rod into the firing chamber, thereby putting the impact assembly into the state of being ready to fire. At the same time, the rotating docking tube can further squeeze the rubber strip, causing the rubber strip to twist in the rotating direction, increasing the friction between the rubber strip and the outer wall of the mist discharge pipe. The formation of the second groove facilitates the contact between the impact rod and the fixed ring.

[0018] Preferably, as an improvement, the fixed ring is made of ceramic or glass material.

[0019] Preferably, as an improvement, the impact rod is made of tungsten steel, and the end of the impact rod close to the mist discharge port is conical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the anesthesia spraying device according to Embodiment 1 of the present invention;

[0021] Figure 2 Schematic cross-sectional structure diagram of the housing of Embodiment 1 of the present invention;

[0022] Figure 3 Schematic cross-sectional structure diagram of the docking tube of Embodiment 1 of the present invention;

[0023] Figure 4 Three-dimensional structure diagram of the docking tube of Embodiment 1 of the present invention;

[0024] Figure 5 Three-dimensional structure diagram of the moving tip of Embodiment 1 of the present invention. Detailed implementation manners

[0025] The following is a further detailed description through specific implementation manners:

[0026] The reference numerals in the accompanying drawings of the specification include: housing 1, mist exhaust port 2, mist exhaust pipe 3, communicating pipe 4, air storage cavity 5, medicine storage cavity 6, metering cavity 7, atomization cavity 8, ultrasonic atomization sheet 9, first spring 10, first piston 11, separation membrane 12, second spring 13, push rod 14, second piston 15, manual one-way valve 16, positioning ring 17, pressure one-way valve 18, mounting shell 19, air pump 20, filter net 21, docking tube 22, atomization hose 23, fixing ring 24, rubber strip 25, mounting groove 26, first groove 27, trigger cavity 28, third spring 29, moving tip 30, moving rod 31, trigger block 32, impact rod 33, trapezoidal groove 34, special-shaped block 35, limiting ring 36, mounting ring 37, fourth spring 38, frustum 39, through groove 40, semi-circular groove 41, second groove 42, arc-shaped block 43, medicine delivery pipe 44, one-way valve 45, firing cavity 46.

[0027] Embodiment 1

[0028] Embodiment 1 is basically as shown in the attached Figures 1-5 shown, such as Figure 1 and Figure 2 shown, an anesthetic spraying device includes a housing 1, a mist exhaust port 2 is integrally formed at the left end of the housing 1, a mist exhaust pipe 3 is horizontally and fixedly installed in the housing 1, and the mist exhaust pipe 3 is communicated with the mist exhaust port 2. A power member is provided at the right end of the housing 1. The power member includes a mounting shell 19, an air pump 20 and a filter net 21. The mounting shell 19 is fixedly installed at the right end of the housing 1, and the left end of the mounting shell 19 is communicated with the right end of the mist exhaust pipe 3. The air pump 20 is fixedly installed in the mounting shell 19, and by starting the air pump 20, an air flow can be generated in the mist exhaust pipe 3 to blow out the atomized anesthetic agent from the housing 1. An air inlet is formed at the right end of the mounting shell 19, and the filter net 21 is fixedly installed on the inner wall of the air inlet. The filter net 21 can filter bacteria and impurities in the air to avoid the influence of bacteria and impurities on the efficacy of the anesthetic agent. It further includes a connecting member and a metering assembly. The connecting member can be connected to the mist exhaust port 2, such as Figure 1 andFigure 3 As shown, the connecting member includes a docking pipe 22, an atomizing hose 23 and a fixing ring 24. The docking pipe 22 is arranged in a ring shape and can be docked with the mist exhaust port 2. A plurality of rubber strips 25 are uniformly and fixedly installed on the inner wall of the docking pipe 22. An installation groove 26 is annularly formed in the docking pipe 22. The fixing ring 24 is embedded in the installation groove 26. The fixing ring 24 is made of ceramic or glass material. A plurality of connecting pipes 4 are fixedly installed in the housing 1. The quantitative assembly is arranged in the housing 1;

[0029] As Figure 2A gas storage cavity 5, a medicine storage cavity 6, a metering cavity 7 and an atomization cavity 8 are formed inside the shown housing 1. The medicine storage cavity 6 is located at the lower side of the middle part of the housing 1, the gas storage cavity 5 is located on the left side of the medicine storage cavity 6, the atomization cavity 8 is located on the right side of the medicine storage cavity 6, the metering cavity 7 is located below the atomization cavity 8, and the gas storage cavity 5, the medicine storage cavity 6, the metering cavity 7 and the atomization cavity 8 are sequentially communicated through a communication pipe 4. An ultrasonic atomization sheet 9 is fixedly installed on the lower wall of the atomization cavity 8. The metering assembly includes a first spring 10, a first piston 11, a separation membrane 12, a second spring 13, a push rod 14 and a second piston 15. The first piston 11 is slidably installed in the gas storage cavity 5, and the first piston 11 is in precise fit with the inner wall of the gas storage cavity 5 to ensure that gas will not leak during movement. The first spring 10 is fixedly installed between the first piston 11 and the gas storage cavity 5, and the upper end of the first spring 10 is fixedly connected to the lower end of the first piston 11, and the lower end of the first spring 10 is fixedly connected to the lower wall of the gas storage cavity 5. The separation membrane 12 is fixedly installed on the inner wall of the communication pipe 4 between the gas storage cavity 5 and the medicine storage cavity 6. The separation membrane 12 is used to separate the anesthetic agent and the gas. When the anesthetic agent enters the medicine storage cavity 6, the gas flows into the communication pipe 4 through the separation membrane 12, while the anesthetic agent cannot pass through the separation membrane 12 and remains in the medicine storage cavity 6. In this embodiment, the separation membrane 12 is fixedly installed on the inner wall of the communication pipe 4 at the upper end of the medicine storage cavity 6, and the separation membrane 12 is flush with the inner wall of the upper end of the medicine storage cavity 6, so as to ensure that the anesthetic agent cannot enter the communication pipe 4. A manual one-way valve 16 is fixedly installed in the communication pipe 4 between the medicine storage cavity 6 and the metering cavity 7, and the control end of the manual one-way valve 16 is arranged at the lower end of the housing 1. The second piston 15 is slidably installed on the inner wall of the metering cavity 7, and the second piston 15 is in precise fit with the inner wall of the metering cavity 7 to ensure that the anesthetic agent will not leak during movement. The push rod 14 is fixedly installed at the lower end of the second piston 15, and the lower end of the push rod 14 penetrates out of the outer shell. A push handle is fixedly installed at the lower end of the push rod 14, and the push handle facilitates the medical staff to push the push handle. A positioning ring 17 is fixedly installed on the inner wall of the metering cavity 7. The movable distance of the second piston 15 is limited by the positioning ring 17, so that the volume of the anesthetic agent flowing into the metering cavity 7 each time is certain. The second spring 13 is sleeved on the outer wall of the push rod 14, and the upper end of the second spring 13 is fixedly connected to the lower end of the second piston 15, and the lower end of the second spring 13 is fixedly connected to the lower wall of the metering cavity 7. A pressure one-way valve 18 is fixedly installed in the communication pipe 4 between the atomization cavity 8 and the metering cavity 7, and the opening pressure of the pressure one-way valve 18 is greater than the maximum pressure that the gas storage cavity 5 can provide. When the first piston 11 pushes the gas into the medicine storage cavity 6, it prompts the anesthetic agent to enter the metering cavity 7 through the manual one-way valve 16. Under the action of the pressure provided by the gas storage cavity 5, the second piston 15 moves towards the positioning ring 17 until it abuts against the positioning ring 17, and under the action of the pressure one-way valve 18, the medicine in the metering cavity 7 cannot enter the atomization cavity 8. At this time, the anesthetic agent entering the metering cavity 7 is certain. Then the medical staff applies pressure to the metering cavity 7 by pushing the push rod 14,Thus, the pressure in the metering chamber 7 is greater than the opening pressure of the pressure check valve 18, and then the anesthetic agent is pushed into the spray chamber for spraying. When all the anesthetic agent in the metering chamber 7 is completely pushed into the spray chamber, the medical staff releases the push rod 14. At this time, the air storage chamber 5 continues to apply pressure to the medicine storage chamber 6, prompting the anesthetic agent in the medicine storage chamber 6 to enter the metering chamber 7, thereby pushing the push rod 14 again to abut against the positioning ring 17, facilitating the medical staff to continue pushing the anesthetic agent. During this process, each time the medical staff pushes the push rod 14, a fixed amount of anesthetic agent can be delivered into the spray chamber, which is convenient for the medical staff to accurately control the anesthetic agent and improve the safety of the anesthesia operation.

[0030] A trigger chamber 28 and a firing chamber 46 are formed in the housing 1. The trigger chamber 28 is horizontally arranged, and the firing chamber 46 is vertically arranged. The cross-sections of the trigger chamber 28 and the firing chamber 46 are both circular and communicate with each other. An impact assembly is arranged between the trigger chamber 28 and the firing chamber 46. The impact assembly includes a third spring 29, a moving pin 30, a moving rod 31, a trigger block 32 and an impact rod 33. The moving rod 31 is fixedly installed at the middle lower end of the first piston 11, and the lower end of the moving rod 31 penetrates out of the air storage chamber 5 and extends into the trigger chamber 28. The trigger block 32 is fixedly installed at the lower end of the moving rod 31. The trigger block 32 is arranged as a cuboid, and the left end of the trigger block 32 is provided with an inclined surface. The moving pin 30 is slidably installed in the trigger chamber 28, and the moving pin 30 is arranged as a cylinder and is in close fit with the inner wall of the trigger chamber 28. The third spring 29 is fixedly installed between the moving pin 30 and the trigger chamber 28. A trapezoidal groove 34 is formed through the middle of the moving pin 30. The trapezoidal groove 34 is arranged as a right trapezoid. The upper base of the trapezoidal groove 34 is arranged at the end close to the air storage chamber 5, and the lower base of the trapezoidal groove 34 is arranged at the end far from the air storage chamber 5. The inclined surface of the trigger block 32 abuts against the inclined surface of the trapezoidal groove 34, as Figure 5The left end of the moving tip 30 shown is fixedly installed with a special-shaped block 35, the impact rod 33 is slidably installed in the firing chamber 46, and the upper end of the impact rod 33 passes through the shell 1, the impact rod 33 is set to tungsten steel, and the upper end of the impact rod 33 is set to a cone, and its upper end is chamfered, a limit ring 36 is fixedly installed on the inner wall of the firing chamber 46, a mounting ring 37 is fixedly installed on the outer wall of the impact rod 33, a fourth spring 38 is fixedly installed between the mounting ring 37 and the limiting ring 36, and the fourth spring 38 is sleeved on the outer wall of the impact rod 33, a frustum 39 is fixedly installed on the lower end of the impact rod 33, the upper bottom diameter of the frustum 39 is larger than the lower bottom diameter, and the arc surface of the frustum 39 can abut against the inclined surface of the special-shaped block 35, and the lower end of the special-shaped block 35 is The shell 1 is set to be a plane, and the plane of the lower end of the special-shaped block 35 can abut against the upper bottom surface of the truncated cone 39. The lower end of the shell 1 is provided with a through groove 40 connected to the trigger chamber 28. The trigger block 32 can move into the through groove 40. The through groove 40 is used to increase the moving distance of the trigger block 32, thereby ensuring that the gas storage chamber 5 can completely accommodate the gas in the drug storage chamber 6. The lower end of the shell 1 is provided with an exhaust hole connected to the through groove 40. The exhaust hole is used to ensure the normal movement of the moving tip 30 and the first piston 11. The lower end of the shell 1 is provided with a drug delivery tube 44 connected to the lower end of the drug storage chamber 6. A one-way valve 45 is fixedly installed in the drug delivery tube 44. Medical staff use a needle to connect with the drug delivery tube 44 and inject the anesthetic into the drug storage chamber 6 through the drug delivery tube 44.

[0031] like Figure 3 and Figure 4 As shown, a first groove 27 is formed on the upper side of the right end of the butt joint pipe 22, and a second groove 42 symmetrical to the first groove 27 is formed on the lower side of the right end of the butt joint pipe 22. A contact groove is formed on one end of the second groove 42 close to the mounting groove 26, and an elastic membrane is fixedly installed in the contact groove. The elastic membrane is made of a polymer material with good elasticity and flexibility. When the end of the impact rod 33 hits the elastic membrane, the elastic membrane is deformed to make the end of the impact rod 33 hit the fixing ring 24, thereby causing the fixing ring 24 to break, and the fixing ring 24 is still in the mounting cavity after breaking, and the elastic membrane The fragments of the fixing ring 24 are blocked in the installation groove 26 to prevent the fragments of the fixing ring 24 from leaking. A semicircular groove 41 is annularly opened on the outer wall of the butt tube 22. The semicircular groove 41 is set in a semicircular arc shape, and the two ends of the semicircular groove 41 are respectively connected with the first groove 27 and the second groove 42. An arc block 43 is fixedly installed in the semicircular groove 41. The diameter of the arc block 43 gradually increases when it extends in the opposite direction of the first groove 27 to the second groove 42. The impact rod 33 can pass through the first groove 27 and the second groove 42 into the semicircular groove 41 and abut against the outer wall of the arc block 43.

[0032] The specific implementation process is as follows:

[0033] When in use, the medical staff closes the manual one-way valve 16, and uses a needle to connect the drug delivery tube 44, and injects the anesthetic into the drug storage chamber 6 through the drug delivery tube 44. When the anesthetic is injected into the drug storage chamber 6, the air in the drug storage chamber 6 enters the air storage chamber 5, thereby causing the first piston 11 in the air storage chamber 5 to move downward, and then the moving rod 31 drives the trigger block 32 to move downward. During this process, the moving pin 30 moves toward the firing chamber 46 under the action of the third spring 29. When the anesthetic is completely injected into the drug storage chamber 6, the medical staff aligns the first groove 27 of the docking tube 22 with the impact rod 33, and then connects the docking tube 22 with the mist exhaust port 2. During the docking process, the rubber strip 25 provided on the inner wall of the docking tube 22 is squeezed and deformed under the action of the fixing ring 24, so that the docking tube 22 is firmly fixed at the mist exhaust port 2, and then the medical staff moves the docking tube 22 along the semi-circular shape. The circular groove 41 rotates toward the second groove 42. During the rotation of the butt joint 22, the end of the impact rod 33 abuts against the outer wall of the arc block 43, and presses the impact rod 33 downward until the cone 39 at the lower end of the impact rod 33 contacts the inclined surface of the special-shaped block 35, and as the impact rod 33 continues to descend, the arc surface of the cone 39 presses the special-shaped block 35 downward, so that the moving pin 30 squeezes the third spring 29 and moves to the right until the cone 39 and the special-shaped block 35 are completely offset, and then the moving pin 30 moves to the left under the action of the third spring 29 to reset, at which time the special-shaped block 35 is located above the cone 39, and when the second groove 42 rotates to the upper end of the impact rod 33, the impact rod 33 moves upward under the action of the fourth spring 38 until the cone 39 at the lower end of the impact rod 33 abuts against the special-shaped block 35, at which time the impact rod 33 is not in contact with the fixing ring 24, and the fourth spring 38 is in a compressed state;

[0034] Subsequently, the medical staff opens the manual one-way valve 16. When the first piston 11 pushes the gas into the medicine storage chamber 6, the anesthetic agent is thus promoted to enter the metering chamber 7 through the manual one-way valve 16. Under the action of the pressure provided by the gas storage chamber 5, the second piston 15 moves towards the positioning ring 17 until it abuts against the positioning ring 17. And under the action of the pressure one-way valve 18, the medicine in the metering chamber 7 cannot enter the atomizing chamber 8. At this time, the amount of anesthetic agent entering the metering chamber 7 is certain. Then, the medical staff applies pressure to the metering chamber 7 by pushing the push rod 14, so that the pressure in the metering chamber 7 is greater than the opening pressure of the pressure one-way valve 18, and then the anesthetic agent is pushed into the spray chamber for spraying. When all the anesthetic agent in the metering chamber 7 is completely pushed into the spray chamber, the medical staff releases the push rod 14. At this time, the gas storage chamber 5 continues to apply pressure to the medicine storage chamber 6, promoting the anesthetic agent in the medicine storage chamber 6 to enter the metering chamber 7, thus pushing the push rod 14 to abut against the positioning ring 17 again, facilitating the medical staff to continue pushing the anesthetic agent. During this process, each time the medical staff pushes the push rod 14, a certain amount of anesthetic agent can be delivered to the spray chamber, which is convenient for the medical staff to accurately control the anesthetic agent and improves the safety of the anesthesia operation;

[0035] During the spraying process, each time the medical staff pushes the push rod 14, the first piston 11 in the gas storage chamber 5 will move upward by a certain distance under the action of the first spring 10, thus pushing the anesthetic agent in the medicine storage chamber 6 into the metering chamber 7 and then reaching equilibrium. During the upward movement of the first piston 11, the inclined surface at the right end of the contact block will abut against the trapezoidal groove 34, and the inclined surface at the right end of the contact block will squeeze the trapezoidal groove 34, causing the moving pin 30 to move to the right end, and then driving the special-shaped block 35 to move to the right. When all the air inside the gas storage chamber 5 is completely delivered to the medicine storage chamber 6, that is, all the anesthetic agent in the medicine storage chamber 6 has entered the metering chamber 7, at this time, the special-shaped block 35 is separated from the frustum 39, causing the fourth spring 38 to be quickly released from the compressed state, thus pushing the impact rod 33 upward. When the end of the impact rod 33 hits the elastic membrane, the elastic membrane deforms and the end of the impact rod 33 hits the fixed ring 24, thus causing the fixed ring 24 to break. And after the fixed ring 24 breaks, it still remains in the installation cavity. The elastic membrane blocks the fragments of the fixed ring 24 in the installation groove 26 to prevent the leakage of the fragments of the fixed ring 24. After the fixed ring 24 breaks, it will no longer squeeze the rubber strip 25. The medical staff can easily separate the docking pipe 22 from the spray port, which is convenient for replacing the connector and saves the time required for disassembly.

[0036] Embodiment 2

[0037] Example 2 is generally the same as Example 1 in principle, except that: a controller is provided in the installation shell 19, the controller is electrically connected to the air pump 20, a pressure sensor is provided at one end of the first piston 11 away from the first spring 10, the pressure sensor can monitor the air pressure change in the air storage cavity 5, and the controller is in telecommunication connection with the pressure sensor. Since the anesthetic dosage required for each anesthetic spray is different, the time required for each spray is also different. When the anesthetic dosage for spraying is small and the spraying time is too long, too much gas will be blown into the patient's body. If the anesthetic dosage for spraying is large and the spraying time is insufficient, the spraying effect will be poor, affecting the normal operation of the operation. By providing a pressure sensor on the first piston 11, detecting the change in pressure in the air storage cavity 5 through the pressure sensor, identifying the number of times the medical staff push the push rod 14, thereby determining the anesthetic dosage for each spray, and then controlling the working time of the air pump 20 through the controller, the spraying time can be accurately controlled, reducing the discomfort of the patient.

[0038] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics known in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. An anesthetic spray device, comprising a housing, the housing being provided with a mist exhaust port, a mist exhaust pipe and a power member being provided inside the housing, the mist exhaust pipe being connected to the mist exhaust port, characterized in that: The invention also includes a connecting piece and a quantitative component, the connecting piece can be connected to the mist exhaust port, a connecting pipe is provided in the shell, the quantitative component is arranged in the shell, an air storage chamber, a medicine storage chamber, a quantitative chamber and an atomization chamber are opened in the shell, and the air storage chamber, the medicine storage chamber, the quantitative chamber and the atomization chamber are connected in sequence through the connecting pipe, an ultrasonic atomization sheet is arranged in the atomization chamber, the quantitative component includes a first spring, a first piston, a separation membrane, a second spring, a push rod and a second piston, the first piston is arranged in the air storage chamber, the first spring is arranged between the first piston and the air storage chamber, the separation membrane is arranged in the connecting pipe between the air storage chamber and the medicine storage chamber, the connecting pipe between the medicine storage chamber and the quantitative chamber is provided with a manual one-way valve, the second piston is arranged in the quantitative chamber, the push rod is arranged at one end of the second piston, and the end of the push rod away from the second piston passes through the shell, a positioning ring is arranged in the quantitative chamber, the second spring is sleeved on the outer wall of the push rod, and is located between the second piston and the quantitative chamber, the connecting pipe between the atomization chamber and the quantitative chamber is provided with a pressure one-way valve, and the opening pressure of the pressure one-way valve is greater than the maximum pressure of the air storage chamber.

2. An anesthetic spray device according to claim 1, characterized in that: The power part includes a mounting shell, an air pump and a filter. The mounting shell is arranged at one end of the shell body away from the mist exhaust port, and the mounting shell is connected to the mist exhaust pipe. The air pump is arranged in the mounting shell. An air inlet is arranged at one end of the mounting shell away from the mist exhaust port, and the filter is arranged in the air inlet.

3. An anesthetic spray device according to claim 2, characterized in that: The connecting piece includes a butt joint, an atomizing hose and a fixing ring. The butt joint is arranged in a ring shape and can be connected with the mist exhaust port. A plurality of rubber strips are arranged on the inner wall of the butt joint. An installation groove is opened in the butt joint and the fixing ring is arranged in the installation groove.

4. An anesthetic spray device according to claim 3, characterized in that: A first groove is formed at one end of the butt joint pipe close to the mist outlet.

5. An anesthetic spray device according to claim 4, characterized in that: A trigger chamber and a firing chamber are provided in the shell, and the firing chamber is communicated with the trigger chamber, and an impact assembly is provided between the trigger chamber and the firing chamber, and the impact assembly includes a third spring, a moving pin, a moving rod, a trigger block and an impact rod, the moving rod is provided at one end of the first piston, and the end of the moving rod away from the first piston passes through the gas storage chamber and extends into the trigger chamber, the trigger block is provided at the end of the moving rod away from the first piston, the end of the trigger block away from the axis of the moving rod is provided as an inclined surface, the moving pin is provided in the trigger chamber, the third spring is provided between the moving pin and the trigger chamber, and a trapezoidal The groove is arranged as a right-angled trapezoid, and the inclined surface of the trigger block abuts against the inclined surface of the trapezoidal groove, a special-shaped block is arranged at the end of the moving pin away from the third spring, the impact rod is arranged in the firing chamber, and the end of the impact rod close to the mist exhaust port passes through the shell, a limiting ring is arranged in the firing chamber, a mounting ring is arranged on the outer wall of the impact rod, a fourth spring is arranged between the mounting ring and the limiting ring, and the fourth spring is sleeved on the outer wall of the impact rod, a frustum is arranged at the end of the impact rod away from the mist exhaust port, and the frustum can abut against the special-shaped block, a through groove connected with the trigger chamber is opened in the shell, and the trigger block can pass through the through groove.

6. An anesthetic spray device according to claim 5, characterized in that: A semicircular groove is provided on the outer wall of the butt joint tube, and a second groove symmetrical to the first groove is provided on one end of the butt joint tube close to the mist exhaust port, and the two ends of the semicircular groove are respectively connected to the first groove and the second groove. An arc block is provided in the semicircular groove, and the impact rod can extend into the semicircular groove and abut against the arc block.

7. An anesthetic spray device according to claim 6, characterized in that: The retaining ring is made of ceramic or glass material.

8. An anesthetic spray device according to claim 7, characterized in that: The impact rod is made of tungsten steel, and one end of the impact rod close to the mist exhaust port is in a cone shape.

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