Anesthesia device with concentration adjustment function for anesthesiology department

Abstract

This invention discloses a concentration-adjustable anesthesia device for anesthesiology, comprising a first pipe and a second pipe connected together. The first pipe has a baffle that is movably installed inside for sealing it, and a delayed-action drive mechanism is installed inside the first pipe to drive the baffle to move. During inhalation anesthesia, pressing a lever causes the baffle to move downwards, opening the first pipe and charging the delayed-action drive mechanism. At its maximum opening, the first pipe output is at its maximum, providing the patient with the highest concentration of anesthetic gas. Then, the delayed-action drive mechanism causes the baffle to gradually rise, gradually narrowing the opening of the first pipe. Since the pressure of the anesthetic gas in the first pipe is constant, the amount of anesthetic gas output from the first pipe decreases, and the concentration of anesthetic gas inhaled by the patient also decreases, providing the best anesthetic effect.

Description

Technical Field

[0001] This invention relates to the field of anesthesia technology, and more specifically to a concentration-adjustable anesthesia device for use in anesthesiology departments. Background Technology

[0002] Inhalation anesthesia is a commonly used method of general anesthesia. It involves inhaling anesthetic drugs into the patient's body through respiration, which inhibits the patient's central nervous system, thereby achieving temporary loss of consciousness.

[0003] According to the publication (announcement) number CN114307766A, published (announcement) date 2022.04.12, a concentration-adjustable anesthesia device for anesthesiology is disclosed, including a protective cylinder and a mixing tank. The lower end face of the protective cylinder is provided with a water collection tank, and the lower end face of the water collection tank is connected to a drain pipe. The upper end of the protective cylinder is movably connected to a sealing cover, and the upper end face of the sealing cover has a water inlet. The upper end of the water inlet is connected to two branch pipes, and a flow meter is installed on the outer wall of each of the two branch pipes. A water pump is fixedly installed on the upper end face of the sealing cover, and a suction pipe is installed at the suction port of the water pump. The other end of the suction pipe passes through the sealing cover and extends into the interior of the protective cylinder. The lower end face of the protective cylinder is fixedly connected to an installation box, and a first motor is installed inside the installation box. The device connects the storage tanks for the diluent and anesthetic to two branch pipes, allowing the diluent and anesthetic to flow into the mixing tank. Two flow meters record the mixing amounts of the diluent and anesthetic, thus improving the accuracy of the mixing and facilitating recording by staff. Starting the first motor drives the mixing tank to rotate at a constant speed, causing the mixed solution to collide with the stirring rod, ensuring complete and uniform mixing. Starting the water pump allows the mixed solution to be extracted from the mixing tank for nebulized anesthesia or intravenous injection.

[0004] In the prior art, including the aforementioned patent, during inhalation anesthesia, anesthetic gas is generally mixed with oxygen and allowed to be slowly inhaled by the patient. Inhalation anesthesia also uses a mixing channel composed of two tubes, one of which pumps out oxygen at a constant pressure, and the other tube pumps out anesthetic gas at a constant pressure. The anesthetic gas is mixed with oxygen and then inhaled by the patient. During this process, the concentration of anesthetic gas is fixed. However, in actual inhalation anesthesia, a higher concentration of anesthetic gas is generally required at the beginning of the inhalation anesthesia, and the concentration of anesthetic gas is gradually reduced during the process to ensure the anesthetic effect while avoiding excessive inhalation of anesthetic gas. Summary of the Invention

[0005] The purpose of this invention is to provide a concentration-adjustable anesthesia device for anesthesiology, which aims to solve the problem that traditional inhalation anesthesia can only supply anesthetic gas at a fixed concentration, which is not conducive to the anesthesia process.

[0006] To achieve the above objectives, the present invention provides a concentration-adjustable anesthesia device for anesthesiology, comprising a first conduit and a second conduit connected to each other. The first conduit is movably provided with a baffle for sealing it, and the first conduit is provided with a time-delayed drive mechanism for driving the baffle to move. The time-delayed drive mechanism includes a pressure rod movably mounted on the first conduit, and the pressure rod moves to move the baffle relative to the first conduit.

[0007] Preferably, the delay drive mechanism includes a spring movably installed inside the first pipe, with a gear at one end of the spring and the other end fixed to the first pipe.

[0008] Preferably, the gear is rotatably mounted on the first pipe, and the baffle is provided with a rack that meshes with the gear.

[0009] Preferably, a pressure rod is rotatably mounted on the rack, and a threaded groove is formed on the pressure rod. A protrusion adapted to the threaded groove is provided on the first pipe.

[0010] Preferably, a stop block is movably disposed on the first pipe at the connection between the first pipe and the second pipe and moves with the baffle.

[0011] Preferably, the baffle moves down to open the first pipe so that the stop block moves and blocks part of the first pipe.

[0012] Preferably, a spring is provided between the stop block and the first pipe, and a pull rope is provided between the stop block and the rack.

[0013] Preferably, the inner wall of the first pipe is provided with a notch for the block to move, and a sealing plate for sealing the notch is slidably provided on the first pipe.

[0014] Preferably, a spring is provided between the sealing plate and the first pipe.

[0015] In the above technical solution, the present invention provides a concentration-adjustable anesthesia device for anesthesiology, which has the following beneficial effects: During inhalation anesthesia, pressing the lever causes the baffle to move down, opening the first pipe and accumulating power for the delayed drive mechanism. The oxygen pump pumps oxygen at a constant pressure into the second pipe, and the anesthetic gas pump pumps anesthetic gas at a constant pressure into the first pipe. At this time, the opening of the first pipe is at its maximum, and the output of the anesthetic gas is also at its maximum, providing the patient with the highest concentration of anesthetic gas. Then, the delayed drive mechanism causes the baffle to gradually rise, and the opening of the first pipe gradually narrows. Since the pressure of the anesthetic gas in the first pipe is fixed, the amount of anesthetic gas output from the first pipe also decreases, and the concentration of the anesthetic gas inhaled by the patient also decreases, providing the best anesthetic effect for the patient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure provided for an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. First pipe; 11. Baffle; 12. Stop block; 121. Sealing plate; 13. Delay drive mechanism; 131. Pressure rod; 132. Spring; 133. Gear; 134. Rack; 135. Pull rope; 136. Button; 2. Second pipe. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-2 As shown, an anesthesia device for concentration adjustment in anesthesiology includes a first pipe 1 and a second pipe 2 connected to each other. A baffle 11 for sealing the first pipe 1 is movably disposed inside the first pipe 1. A time-delay drive mechanism 13 for driving the baffle 11 to move is disposed inside the first pipe 1. The time-delay drive mechanism 13 includes a pressure rod 131 movably mounted on the first pipe 1. The pressure rod 131 moves to move the baffle 11 relative to the first pipe 1.

[0023] Specifically, during inhalation anesthesia, pressing the lever 131 causes the baffle 11 to move downward, opening the first pipe 1 and accumulating power for the delay drive mechanism 13. The oxygen pump pumps oxygen at a constant pressure into the second pipe 2, and the anesthetic gas pump pumps anesthetic gas at a constant pressure into the first pipe 1. At this time, the opening of the first pipe 1 is at its maximum, and the output of anesthetic gas is also at its maximum, providing the patient with the highest concentration of anesthetic gas. Then, the delay drive mechanism 13 causes the baffle 11 to gradually rise, and the opening of the first pipe 1 gradually narrows. Since the pressure of the anesthetic gas in the first pipe 1 is fixed, the amount of anesthetic gas output from the first pipe 1 also decreases, and the concentration of anesthetic gas inhaled by the patient also decreases, providing the best anesthetic effect for the patient.

[0024] In the above technical solution, during inhalation anesthesia, pressing the lever 131 causes the baffle 11 to move downward, opening the first pipe 1 and accumulating power for the delay drive mechanism 13. The oxygen pump pumps oxygen at a constant pressure into the second pipe 2, and the anesthetic gas pump pumps anesthetic gas at a constant pressure into the first pipe 1. At this time, the opening of the first pipe 1 is at its maximum, and the output of anesthetic gas is also at its maximum, providing the patient with the highest concentration of anesthetic gas. Then, the delay drive mechanism 13 causes the baffle 11 to gradually rise, and the opening of the first pipe 1 gradually narrows. Since the pressure of the anesthetic gas in the first pipe 1 is fixed, the amount of anesthetic gas output from the first pipe 1 also decreases, and the concentration of anesthetic gas inhaled by the patient also decreases, providing the best anesthetic effect for the patient.

[0025] As a further embodiment of the present invention, the delay drive mechanism 13 includes a spring 132 movably installed inside the first pipe 1. One end of the spring 132 is provided with a gear 133, and the other end is fixed to the first pipe 1. The gear 133 is rotatably installed on the first pipe 1. A rack 134 that meshes with the gear 133 is provided on the baffle 11. A pressure rod 131 is rotatably provided on the rack 134. A threaded groove is provided on the pressure rod 131. A protrusion that matches the threaded groove is provided on the first pipe 1. A button 136 is rotatably provided on the pressure rod 131. During inhalation anesthesia, pressing button 136 causes lever 131 to move downwards. A protrusion on the first conduit 1 moves along the threaded groove on lever 131, causing lever 131 to rotate. The protrusion and threaded groove only serve a guiding function and do not self-lock. Lever 131, via rack 134, causes baffle 11 to move downwards, opening the first conduit 1. Rack 134 pushes the meshing gear 133 to rotate, causing spring 132 to deform. Spring 132 accumulates elastic potential energy. Simultaneously, rack 134 and baffle 1... The pull cord 135 between pipes 2 and 2 is released, the spring pushes the stop block 12 upward, partially closing the first pipe 1. The oxygen pump pumps oxygen at a constant pressure into the second pipe 2, and the anesthetic gas pump pumps anesthetic gas at a constant pressure into the first pipe 1. At this time, the opening of the first pipe 1 is at its maximum, and the output of anesthetic gas is also at its maximum, providing the patient with the highest concentration of anesthetic gas. At the same time, the faster-flowing oxygen in the second pipe 2 will create a certain negative pressure around it, drawing out the anesthetic gas in the first pipe 1. The anesthetic gas and oxygen mix, and then the spring 132... The release of elastic potential energy drives gear 133 to rotate. Gear 133 drives baffle 11 to gradually rise through rack 134, and the opening of the first pipe 1 gradually narrows. Since the pressure of anesthetic gas in the first pipe 1 is fixed, the amount of anesthetic gas output from the first pipe 1 also decreases, and the concentration of anesthetic gas inhaled by the patient also decreases, which can provide the best anesthetic effect for the patient. During the upward movement of rack 134, it will push pressure rod 131 to move upward and be pushed to rotate by the protrusion. The rise of pressure rod 131 is restricted to a certain extent, which can prolong the time of rise of pressure rod 131.

[0026] As a further embodiment of the present invention, a stop block 12 is movably disposed on the first pipe 1 at the connection between the first pipe 1 and the second pipe 2 and moves with the baffle 11. The baffle 11 moves down to open the first pipe 1 so that the stop block 12 can move and block part of the first pipe 1. A spring is disposed between the stop block 12 and the first pipe 1, and a pull rope 135 is disposed between the stop block 12 and the rack 134. A notch is opened on the inner wall of the first pipe 1 for the stop block 12 to move. A sealing plate 121 for sealing the notch is slidably disposed on the first pipe 1, and a spring is disposed between the sealing plate 121 and the first pipe 1. The spring and sealing plate 121 can tightly abut against the stop block 12 to seal the gap on the inner wall of the first pipe 1, so as to allow the anesthetic gas to flow. During inhalation anesthesia, pressing the button 136 causes the pressure rod 131 to move downward. The protrusion on the first pipe 1 moves along the threaded groove on the pressure rod 131 and drives the pressure rod 131 to rotate. The protrusion and the threaded groove only serve as guides and do not have a self-locking function. The pressure rod 131 drives the baffle 11 to move downward through the rack 134 to open the first pipe 1. The rack 134 pushes the gear 133 that meshes with it to rotate. The gear 133 drives the spring 132 to rotate. As the spring changes, the spring 132 accumulates elastic potential energy, while the pull cord 135 between the rack 134 and the stop 12 relaxes. The spring pushes the stop 12 upward, partially closing the first pipe 1. The oxygen pump pumps oxygen at a constant pressure into the second pipe 2, and the anesthetic gas pump pumps anesthetic gas at a constant pressure into the first pipe 1. At this time, the opening of the first pipe 1 is at its maximum, and the output of anesthetic gas is also at its maximum, providing the patient with the highest concentration of anesthetic gas. At the same time, the faster-flowing oxygen in the second pipe 2 creates a certain negative pressure around it, drawing out the anesthetic gas from the first pipe 1. The anesthetic gas and... Oxygen is mixed, and then the spring 132 releases elastic potential energy, driving the gear 133 to rotate. The gear 133 drives the baffle 11 to gradually rise through the rack 134, and the opening of the first pipe 1 gradually narrows. Since the pressure of the anesthetic gas in the first pipe 1 is fixed, the amount of anesthetic gas output from the first pipe 1 also decreases, and the concentration of anesthetic gas inhaled by the patient also decreases, which can provide the best anesthetic effect for the patient. During the upward movement of the rack 134, it will push the pressure rod 131 to move upward and be pushed to rotate by the protrusion. The rise of the pressure rod 131 is restricted to a certain extent, which can prolong the time of the pressure rod 131 rising.

[0027] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Anesthesia device of the type having a concentration adjustment function, characterized in that, The device includes a first pipe (1) and a second pipe (2) that are connected to each other. The first pipe (1) is movably provided with a baffle (11) for blocking it. The first pipe (1) is provided with a time-delay drive mechanism (13) for driving the baffle (11) to move. The time-delay drive mechanism (13) includes a pressure rod (131) movably mounted on the first pipe (1). The pressure rod (131) moves to make the baffle (11) move relative to the first pipe (1). The delay drive mechanism (13) includes a spring (132) movably installed inside the first pipe (1), with a gear (133) provided at one end of the center of the spring (132) and the other end fixed to the first pipe (1). The gear (133) is rotatably mounted on the first pipe (1), and the baffle (11) is provided with a rack (134) that meshes with the gear (133). A pressure rod (131) is rotatably mounted on the rack (134), and a threaded groove is provided on the pressure rod (131). A protrusion adapted to the threaded groove is provided on the first pipe (1).

2. The concentration-adjustable anesthesia device for anesthesiology department according to claim 1, characterized in that, A stop (12) is movably disposed on the first pipe (1) at the connection between the first pipe (1) and the second pipe (2) and moves with the baffle (11).

3. The concentration-adjustable anesthesia device for anesthesiology according to claim 2, characterized in that, The baffle (11) moves down to open the first pipe (1) so that the stop block (12) moves and blocks part of the first pipe (1).

4. The concentration-adjustable anesthesia device for anesthesiology as described in claim 3, characterized in that, A spring is provided between the stop block (12) and the first pipe (1), and a pull rope (135) is provided between the stop block (12) and the rack (134).

5. The concentration-adjustable anesthesia device for anesthesiology according to claim 4, characterized in that, The inner wall of the first pipe (1) is provided with a notch for the movement of the stop (12), and a sealing plate (121) for sealing the notch is slidably provided on the first pipe (1).

6. The concentration-adjustable anesthesia device for anesthesiology according to claim 5, characterized in that, A spring is provided between the sealing plate (121) and the first pipe (1).

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