Anesthetic quantitative injection device for anesthesiology department

Abstract

The anesthetic quantitative injection device for the anesthesiology department relates to the technical field of anesthesia instruments and is characterized in that the anesthetic quantitative injection device comprises a needle cylinder and a liquid storage cylinder, an injection opening is formed in the tail of the needle cylinder, a piston is movably connected into the needle cylinder, a baffle is arranged in the piston and fixedly connected with a push rod, and the push rod is fixedly connected with the liquid storage cylinder. A handle is arranged at the top of the push rod; a first fixing ring is arranged outside the needle cylinder, a connecting plate is arranged on one side of the first fixing ring, the other end of the connecting plate is fixedly connected with a second fixing ring, the second fixing ring surrounds the outer wall of the liquid storage cylinder, the position, close to the top, of the liquid storage cylinder is movably connected with a blocking ring, and the liquid storage cylinder is detachably connected with a quantitative liquid taking structure. According to the device, the liquid taking amount of the anesthetic can be rapidly determined, and the adjusting method is very simple and can be adjusted at any time according to use requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of anesthesia equipment, and more specifically, to an anesthetic quantitative injection device for anesthesia department. Background Art

[0002] During some surgeries or treatments, the patient's anesthesia or sedation state needs to be maintained, so the patient needs to be given multiple anesthetic injections. The amount of anesthetic injection varies depending on the different surgical requirements. Although some surgeries are injected in batches, the amount of each injection is the same; for some surgeries, there are certain differences in the amount of anesthetic injected each time.

[0003] The existing quantitative injection devices for anesthetics in the prior art have relatively complicated ways of adjusting the quantitative amount, and are not very practical during surgery. In addition, a large number of quantitative injection devices can only provide a fixed dose of anesthetics. Summary of the invention

[0004] The purpose of the present invention is to provide an anesthetic quantitative injection device for anesthesia department to solve the problems existing in the prior art.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an anesthetic quantitative injection device for anesthesia department, comprising a syringe and a liquid storage cylinder, the tail of the syringe is provided with an injection port, a piston is movably connected inside the syringe, a baffle is provided inside the piston, a push rod is fixedly connected to the baffle, and a handle is provided on the top of the push rod;

[0006] A fixing ring 1 is provided on the outside of the syringe, a connecting plate is provided on one side of the fixing ring 1, and a fixing ring 2 is fixedly connected to the other end of the connecting plate. The fixing ring 2 surrounds the outer wall of the liquid storage cylinder, and a blocking ring is movably connected to the liquid storage cylinder near the top. The liquid storage cylinder is detachably connected to a quantitative liquid extraction structure.

[0007] By adopting the above technical solution, a syringe is provided for injecting anesthetics, and a liquid storage barrel is provided for storing the configured anesthetics. The injection port at the tail of the syringe is used to connect the needle for injection, the piston is used to push the anesthetic, the baffle is fixedly connected to the push rod and can be moved by the push rod, and the handle facilitates the operator to push the piston.

[0008] The first fixing ring is connected to the outer wall of the syringe, the second fixing ring is connected to the outer wall of the liquid storage cylinder, and the first fixing ring and the second fixing ring are connected by a connecting plate to realize the connection between the syringe and the liquid storage cylinder. A quantitative liquid extraction structure is provided to facilitate the extraction of a fixed amount of anesthetic for injection. The setting of the blocking ring can assist the quantitative liquid extraction structure in controlling the amount of extraction.

[0009] The present invention is further configured as follows: the quantitative liquid extraction structure includes a connecting cover, a liquid dispensing tube and a dosing device, a accommodating chamber is provided on the top of the connecting cover, a pressing pump is provided inside the accommodating chamber, a liquid extraction tube is connected to the top of the pressing pump, the liquid extraction tube passes through the accommodating chamber, a pressing port is connected to the top of the liquid extraction tube, the liquid extraction tube is connected to the liquid dispensing tube through the pressing port, a transfer main pipe is connected to the bottom of the pressing pump, an auxiliary pipe is connected to the transfer main pipe near the middle, the dosing device is also connected to a liquid suction tube, a hanging line is provided on one side of the bottom of the liquid suction tube, a float is hung on the hanging line.

[0010] By adopting the above technical solution, the connecting cover is used to connect the liquid storage cylinder and the quantitative liquid extraction structure, the liquid dispensing tube transfers the anesthetic absorbed by the quantitative liquid extraction structure to the syringe, and the doser is used to store a fixed amount of anesthetic. A pressing pump is provided inside the accommodating chamber. The user drives the liquid extraction tube by pressing the pressing port, and then squeezes the pressing pump. The gas in the pressing pump is discharged through the auxiliary tube. At this time, the interior is in a negative pressure state. During the process of the pressing pump restoring its shape, the transfer main pipe absorbs the anesthetic inside the doser, and then transfers it to the syringe through the liquid extraction tube, the liquid dispensing tube, etc. After the anesthetic in the doser is sucked away, the liquid level drops, the float falls, and after the opening of the liquid pipette is opened, the anesthetic in the liquid storage cylinder will enter the doser through the liquid pipette during the process of the pressing pump restoring its shape.

[0011] The present invention is further configured as follows: the baffle plate is rotatable relative to the piston, a first injection hole is provided on the piston, a second injection hole is provided on the baffle plate, and the first injection hole is matched with the second injection hole in size.

[0012] By adopting the above technical solution, the baffle is inside the piston, and when the injection hole 1 set on the piston is aligned with the injection hole 2 set on the baffle, the anesthetic can be smoothly transferred into the syringe. When injection is needed, the handle is turned to drive the baffle to move, so that the baffle can block the position of the injection hole 1, and the anesthetic can be smoothly pushed for injection.

[0013] The present invention is further configured such that the top view of the handle is an equilateral triangle, a rectangle or a regular hexagon.

[0014] By adopting the above technical solution, when the top view of the handle is a special shape such as an equilateral triangle, rectangle, regular hexagon, etc. in which each internal angle is equal, the user can see the approximate angle of rotation more intuitively when turning the handle to align injection hole one with injection hole two, and when turning the baffle to close injection hole one after taking liquid. The user can align injection hole one with injection hole two very quickly during the next adjustment to achieve liquid taking.

[0015] The present invention is further configured such that: the auxiliary tube passes through the dosing device and extends to the top wall inside the dosing device.

[0016] By adopting the above technical solution, the auxiliary pipe is used for exhausting gas, and it does not pass into the liquid, so the gas in the pressing pump can be better exhausted.

[0017] The present invention is further configured such that: the tail of the transfer main pipe passes through the dosing device and extends to the bottom plate inside the dosing device.

[0018] By adopting the above technical solution, the transfer main pipe is extended to the bottom of the dosing device so that the liquid inside the dosing device can be more effectively absorbed.

[0019] The present invention is further configured as follows: a limiting rod is provided on the side of the pressing port away from the syringe, the limiting rod is in an "L" shape, and a limiting disk is fixedly connected to the tail of the limiting rod.

[0020] By adopting the above technical solution, the limiting rod is used to connect the pressing port and the limiting disk. The length of the limiting rod is fixed. When the pressing port is pressed, when the limiting disk touches the blocking ring, it can no longer be pressed down. Therefore, the position of the blocking ring can determine the amount of liquid absorbed each time it is pressed.

[0021] The present invention is further configured such that: the blocking ring is movably connected to the liquid storage cylinder via a thread.

[0022] By adopting the above technical solution, the blocking ring and the liquid storage cylinder are movably connected through threads, so that the position of the blocking ring can be adjusted to facilitate the regulation of the height to which the pressing port can be pressed, thereby adjusting the amount of liquid taken.

[0023] The present invention is further configured as follows: the liquid storage cylinder is provided with scale lines for marking the amount of liquid that can be taken out by pressing the pressing port once.

[0024] By adopting the above technical solution, a scale line is marked on the liquid storage cylinder, and the blocking ring is adjusted to the position of the scale line mark. The liquid taken out after pressing the pressing port is the amount indicated by the scale line, and the anesthetic taken can be quantified quickly.

[0025] In summary, the present invention has the following beneficial effects: the present invention adjusts the relative position of the blocking ring and the liquid storage cylinder to adjust the pressing height of the pressing port, thereby adjusting the amount of liquid taken, and at the same time directly transports the liquid into the syringe through the liquid dispensing tube, thereby reducing the transfer steps and speeding up the liquid taking speed.

[0026] By setting a baffle in the piston, the opening of the injection hole 1 on the piston is adjusted by the baffle, and the control method is set on the handle. The basic determination of the relative position of the injection hole 1 and the baffle can be achieved simply by the shape of the handle, which helps the operator to quickly align the injection hole 2 and the injection hole 1 on the baffle.

[0027] Based on the above two aspects, the device can quickly determine the amount of anesthetic liquid taken, and its adjustment method is also very simple and can be adjusted at any time according to usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the device in the present invention;

[0029] Figure 2 It is a schematic diagram of the quantitative liquid extraction structure in the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the shielding part inside the syringe in the present invention;

[0031] Figure 4 is a schematic diagram of the interior of the accommodation chamber in the present invention;

[0032] Figure 5 It is the internal schematic diagram of the quantitative device in the present invention;

[0033] Figure 6 It is a schematic diagram of the connection between the piston and the baffle in the present invention;

[0034] Figure 7 It is a top view of the baffle in the present invention.

[0035] In the figure: 1. injection port; 2. syringe; 3. fixing ring 1; 4. push rod; 5. handle; 6. dispensing tube; 7. limiting disk; 8. connecting cover; 9. accommodating chamber; 10. liquid taking tube; 11. pressing port; 12. connecting plate; 13. liquid storage cylinder; 14. fixing ring 2; 15. blocking ring; 16. limiting rod; 17. dosing device; 18. suction tube; 19. auxiliary tube; 20. piston; 21. injection hole 1; 22. baffle; 23. transfer main pipe; 24. pressing pump; 25. float; 26. hanging line; 27. injection hole 2. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-7 The present invention is described in further detail.

[0037] Embodiment 1: A quantitative injection device for anesthesia, such as Figure 1-7 As shown, it includes a syringe 2 and a liquid storage cylinder 13. The rear part of the syringe 2 is provided with an injection port 1. A piston 20 is movably connected inside the syringe 2. A baffle 22 is provided inside the piston 20. The baffle 22 is fixedly connected to a push rod 4. A handle 5 is provided on the top of the push rod 4. Based on the above structure, a basic syringe 2 is constructed for connecting a needle for anesthesia injection.

[0038] In addition, a fixing ring 13 is provided outside the syringe 2, a connecting plate 12 is provided on one side of the fixing ring 13, and a fixing ring 2 14 is fixedly connected to the other end of the connecting plate 12. The fixing ring 2 14 surrounds the outer wall of the liquid storage cylinder 13, and a blocking ring 15 is movably connected to the liquid storage cylinder 13 near the top. The blocking ring 15 is movably connected to the liquid storage cylinder 13 through a thread (the thread is not shown in the figure, and if it is modified to other connection methods similar to the thread, this function can also be achieved). The liquid storage cylinder 13 is detachably connected to a quantitative liquid extraction structure.

[0039] The quantitative liquid extraction structure includes a connecting cover 8, a liquid dispensing tube 6 and a quantitative device 17. A receiving chamber 9 is provided on the top of the connecting cover 8. A pressing pump 24 is provided inside the receiving chamber 9. A liquid extraction tube 10 is connected to the top of the pressing pump 24. The liquid extraction tube 10 runs through the receiving chamber 9. A pressing port 11 is connected to the top of the liquid extraction tube 10. A limiting rod 16 is provided on the side of the pressing port 11 away from the syringe 2. The limiting rod 16 is "L"-shaped, and a limiting disk 7 is fixedly connected to the tail of the limiting rod 16. The relative position of the limiting disk 7 and the blocking ring 15 determines the height of the pressing port 11, and further determines the amount of liquid extracted. A scale line is provided on the liquid storage cylinder 13 to mark the amount of liquid that can be obtained by pressing the pressing port 11 once. When the blocking ring 15 is moved to the position of the scale line, the corresponding amount of anesthetic can be taken out into the syringe 2.

[0040] The liquid collection tube 10 passes through the pressing port 11 and is connected to the liquid dispensing tube 6. The bottom of the pressing pump 24 is connected to a transfer main tube 23. The transfer main tube 23 is connected to an auxiliary tube 19 near the middle. The tail of the transfer main tube 23 passes through the quantitative device 17 and extends to the bottom plate inside it; the auxiliary tube 19 passes through the quantitative device 17 and extends to the top wall inside it. The quantitative device 17 is also connected to a liquid suction tube 18. A hanging line 26 is provided on one side of the bottom of the liquid suction tube 18. A floating ball 25 is hung on the hanging line 26. The transfer of the anesthetic is achieved based on the above structure.

[0041] The baffle plate 22 is arranged inside the piston 20 and can rotate relative to the piston 20. The piston 20 is provided with a liquid injection hole 1 21, and the baffle plate 22 is provided with a liquid injection hole 27. The liquid injection hole 1 21 and the liquid injection hole 27 are adapted in size. The position of the liquid injection hole 1 21 is always aligned with the opening of the liquid dispensing tube 6. The diameters of the liquid injection hole 1 21 and the liquid injection hole 27 are larger than the diameter of the outer wall of the liquid dispensing tube 6. It is best that the opening of the liquid dispensing tube 6 is slightly higher than the top wall of the liquid injection hole 27. By rotating the control handle 5, the baffle plate 22 can be driven to rotate relative to the piston 20, thereby aligning or misaligning the liquid injection hole 1 21 and the liquid injection hole 27.

[0042] Embodiment 2. Based on the embodiment, the top view of the handle 5 is set to an equilateral triangle, a rectangle or a regular hexagon. When the injection hole 1 21 and the injection hole 2 27 are aligned, the internal angles of special figures such as equilateral triangles, rectangles, regular hexagons, etc. are equal. When the baffle 22 is rotated to close the injection hole 1 21 after taking the liquid, the user can intuitively see the approximate angle of rotation. For example, it is relatively easy to judge that the rectangle rotates about 90° at a time. When adjusting next time, rotating 90° in the opposite direction can quickly align the injection hole 1 21 and the injection hole 2 27 to achieve liquid taking. In order to better remember the direction of rotation, arrows, pointers, etc. can also be marked on its surface.

[0043] Working principle: During use, the device does not need to draw liquid from other containers for injection through a needle like a traditional syringe 2. The user needs to adjust the blocking ring 15 to a suitable position according to the required injection amount, and rotate the handle 5 at the same time so that the injection hole 1 21 is aligned with the injection hole 2 27, and the mouth of the liquid dispensing tube 6 is also aligned with it. Press the pressing port 11 until it can no longer be pressed down, release the pressing port 11, and wait for it to automatically rise. At this time, the anesthetic is transferred to the inside of the syringe 2 through the liquid dispensing tube 6, and the handle 5 is turned so that the baffle 22 closes the injection port 1. At this time, pushing the handle 5 to drive the piston 20 can achieve anesthetic injection.

[0044] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A quantitative anesthetic injection device for anesthesia, characterized by: The invention comprises a syringe (2) and a liquid storage cylinder (13), wherein the tail of the syringe (2) is provided with an injection port (1), the inside of the syringe (2) is movably connected with a piston (20), the inside of the piston (20) is provided with a baffle (22), the baffle (22) is fixedly connected with a push rod (4), and the top of the push rod (4) is provided with a handle (5); A fixing ring (3) is provided on the outside of the syringe (2), a connecting plate (12) is provided on one side of the fixing ring (3), a fixing ring (14) is fixedly connected to the other end of the connecting plate (12), the fixing ring (14) surrounds the outer wall of the liquid storage cylinder (13), a blocking ring (15) is movably connected to the top of the liquid storage cylinder (13), and the liquid storage cylinder (13) is detachably connected to a quantitative liquid extraction structure.

2. The device for quantitative injection of anesthetic for anesthesia according to claim 1, characterized in that: The quantitative liquid extraction structure comprises a connecting cover (8), a liquid dispensing tube (6) and a dosing device (17). The top of the connecting cover (8) is provided with a receiving chamber (9). A pressing pump (24) is provided inside the receiving chamber (9). The top of the pressing pump (24) is connected with a liquid extraction tube (10). The liquid extraction tube (10) passes through the receiving chamber (9). The top of the liquid extraction tube (10) is connected with a pressing port (11). The liquid extraction tube (10) passes through the pressing port (11) and is connected with the liquid dispensing tube (6). The bottom of the pressing pump (24) is connected with a transfer main pipe (23). The transfer main pipe (23) is connected with an auxiliary pipe (19) near the middle. The dosing device (17) is also connected with a liquid suction tube (18). A hanging line (26) is provided on one side of the bottom of the liquid suction tube (18). A floating ball (25) is hung on the hanging line (26).

3. The device for quantitative injection of anesthetic for anesthesia according to claim 1, characterized in that: The baffle plate (22) is rotatable relative to the piston (20); the piston (20) is provided with a first injection hole (21); the baffle plate (22) is provided with a second injection hole (27); and the first injection hole (21) and the second injection hole (27) are adapted in size.

4. The device for quantitative injection of anesthetic for anesthesia according to claim 1, characterized in that: The top view of the handle (5) is a regular triangle, a rectangle or a regular hexagon.

5. The device for quantitative injection of anesthetic for anesthesia according to claim 2, characterized in that: The tail end of the transfer main pipe (23) passes through the dosing device (17) and extends to the bottom plate inside the dosing device (17).

6. The device for quantitative injection of anesthetic for anesthesia according to claim 2, characterized in that: The auxiliary tube (19) passes through the dosing device (17) and extends to the top wall inside the dosing device (17).

7. The device for quantitative injection of anesthetic for anesthesia according to claim 2, characterized in that: A limiting rod (16) is provided on the side of the pressing port (11) away from the syringe (2); the limiting rod (16) is in an "L" shape, and a limiting disk (7) is fixedly connected to the tail of the limiting rod (16).

8. The device for quantitative injection of anesthetic for anesthesia according to claim 1, characterized in that: The blocking ring (15) is movably connected to the liquid storage cylinder (13) via threads.

9. The device for quantitative injection of anesthetic for anesthesia according to claim 1, characterized in that: The liquid storage cylinder (13) is provided with scale lines for marking the amount of liquid that can be taken out by pressing the pressing port (11) once.

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