A nebulizer quantitative medicine cup, quantitative drug delivery system and control method

Abstract

The present invention provides a nebulizer metered medicine cup, a metered drug delivery system, and a control method. The nebulizer metered medicine cup comprises a nebulizer medicine cup, a nebulizer medicine cup cover, a liquid medicine bottle, a liquid medicine bottle cover, a valve cover, and a metered drug delivery valve assembly. The top and bottom of the liquid medicine bottle are provided with a liquid medicine bottle cover and a valve cover, respectively. The valve cover is connected to the nebulizer medicine cup cover, and the metered drug delivery valve assembly is placed within the valve cover. The upper and lower portions of the metered drug delivery valve assembly are connected to the bottom of the liquid medicine bottle and the nebulizer medicine cup body, respectively, to form an openable and closable liquid medicine passage. Pressing the liquid medicine bottle cover downward causes the liquid medicine bottle cover, liquid medicine bottle, and valve cover to move downward, and the metered drug delivery valve assembly opens the liquid medicine passage. Loosening the liquid medicine bottle cover causes the liquid medicine bottle cover, liquid medicine bottle, valve cover, and metered drug delivery valve assembly to automatically return to their initial positions, causing the metered drug delivery valve assembly to close the liquid medicine passage. This system can efficiently and accurately deliver micro-amounts of atomized drugs, while being simple and convenient to operate.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and relates to improvements in nebulizer technology and usage methods, in particular to a nebulizer quantitative medicine cup, a quantitative drug delivery system and a control method. Background Art

[0002] With the development of medical technology, atomization technology is no longer just an important technical means in the treatment of respiratory diseases, but has begun to be widely used in vaccination, health care, and the prevention and treatment of various non-respiratory diseases such as diabetes, heart disease, cancer, tumors, etc., and has broad market prospects.

[0003] The increasingly widespread application scenarios of nebulization technology, especially the emergence of new micro-atomized drugs including various vaccines, require that the nebulizer must be able to achieve precise drug delivery and must also be able to support micro-amounts of drug atomization.

[0004] The traditional nebulizer medicine cup administration mode can no longer meet the needs of single-time micro-amount precision drug atomization. To achieve precise micro-amount nebulizer administration, the current common method is to use a syringe barrel to inject the drug required for micro-amount atomization into the nebulizer medicine cup. This is inefficient and the accuracy is greatly affected by operational factors, making it difficult to guarantee, and cannot meet the needs of micro-amount precision nebulizer administration. Moreover, due to the influence of the syringe barrel volume, it is necessary to prepare the drug in the syringe barrel in advance before administering the drug to the nebulizer, which increases the complexity of the operation. It is not only inconvenient, but the syringe volume also affects the accuracy of the syringe. The higher the syringe precision and the smaller the syringe volume, the more frequent the drug preparation operations are required, thereby reducing operational efficiency.

[0005] Therefore, how to improve the existing nebulizer drug delivery technology to achieve precise drug delivery, especially the precise delivery of high-efficiency micro-atomized drugs, and avoid the adverse effects of operational factors in the traditional nebulizer drug delivery process has become an imminent and important technical issue for the further development of nebulizer technology and its entry into a broader market. Summary of the Invention

[0006] In order to solve the above-mentioned problems existing in the nebulizer cup of the existing nebulizer, the present invention provides a nebulizer quantitative medicine cup, a quantitative drug delivery system and a control method, which can efficiently achieve the precise delivery of micro-atomized drugs, and is simple and convenient to operate, and can basically avoid the adverse effects caused by operational factors during the traditional nebulizer drug delivery process.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] A nebulizer quantitative medicine cup, comprising a nebulizer medicine cup body and a nebulizer medicine cup cover, characterized in that it also includes a quantitative medicine supply cup, the quantitative medicine supply cup includes a medicine liquid bottle, a medicine liquid bottle cover, a valve body cover and a quantitative drug delivery valve assembly, the medicine liquid bottle cover is arranged on the top of the medicine liquid bottle, the upper part of the valve body cover is detachably connected to the bottom of the medicine liquid bottle, the lower part of the valve body cover is detachably connected to the nebulizer medicine cup cover, and the quantitative drug delivery valve assembly is placed in the valve body cover, the upper part of the quantitative drug delivery valve assembly is communicated with the bottom of the medicine liquid bottle, the nebulizer medicine cup cover is provided with a medicine supply hole, the quantitative drug delivery valve assembly The lower part of the component is connected to the medicine supply hole on the nebulizer medicine cup cover, and forms a medicine liquid passage between the medicine liquid bottle and the nebulizer medicine cup body; in the initial position, the quantitative drug delivery valve assembly closes the medicine liquid passage, and the medicine liquid bottle cover is pressed downward to move the medicine liquid bottle cover, medicine liquid bottle and valve body cover downward, and the quantitative drug delivery valve assembly opens the medicine liquid passage for quantitatively delivering the medicine liquid in the medicine liquid bottle to the nebulizer medicine cup body; when the medicine liquid bottle cover is released, the medicine liquid bottle cover, medicine liquid bottle, valve body cover and quantitative drug delivery valve assembly automatically return to the initial position, so that the quantitative drug delivery valve assembly closes the medicine liquid passage.

[0009] Improvement of the above technical solution: The quantitative dosing valve assembly includes a piston cylinder, a spring I, a piston valve, a piston, a spring II, a sealing cover and a liquid medicine tube. The piston cylinder is vertically arranged in the valve body cover. The top of the piston cylinder is provided with a plurality of vertical grooves as a liquid medicine inlet I. A groove is vertically provided on the side wall of the piston valve as a liquid medicine inlet II. The top of the piston cylinder is inserted upward into the liquid medicine bottle. The sealing cover is provided at the bottom of the piston cylinder. The upper part of the liquid medicine tube is inserted into the piston cylinder. The outer side of the upper part of the liquid medicine tube is provided with the spring I, piston valve, piston and spring II in sequence from top to bottom. The lower part of the liquid medicine tube is inserted into the In the medicine supply hole; in the initial state, the piston valve is closed by the piston and the sealing cover; when the medicine bottle cap is pressed downward, the medicine bottle cap, the medicine bottle, the valve body cover and the quantitative drug delivery valve assembly except the medicine liquid tube move downward as a whole, so that the medicine liquid tube moves upward relative to the remaining components in the quantitative drug delivery valve assembly, thereby compressing the spring I and the spring II to open the piston valve, which is used to allow the medicine in the medicine bottle to enter the medicine liquid tube from the medicine liquid inlet II; when the medicine bottle cap is released, the piston valve automatically returns to its position under the action of the spring I and the spring II, and the piston valve is again closed by the piston and the sealing cover.

[0010] A further improvement to the above technical solution: an annular protrusion is provided in the middle of the liquid medicine tube, the diameter of which is slightly larger than the medicine supply hole in the nebulizer medicine cup cover. The portion of the liquid medicine tube below the annular protrusion is inserted into the nebulizer medicine cup body. Due to the obstruction of the annular protrusion, the length of the liquid medicine tube that can be inserted into the nebulizer medicine cup cover is limited, which facilitates the proximity of the liquid medicine outlet of the liquid medicine tube to the atomizer element of the nebulizer.

[0011] Further improvement to the above technical solution: the quantitative dosing valve assembly is equipped with at least two sets of piston valves and liquid medicine tubes of different sizes, and the outer diameter of the piston valve in each set matches the inner diameter of the liquid medicine tube.

[0012] Further improvement of the above technical solution: an internal thread is provided on the inner side surface of the upper part of the valve body cover, an external thread is provided on the lower part of the medicine liquid bottle, and the upper part of the valve body cover is screwed to the lower part of the medicine liquid bottle; a corresponding socket is also provided on the inner side of the lower part of the valve body cover, and the upper part of the nebulizer medicine cup cover is plugged into the socket of the lower part of the valve body cover.

[0013] A nebulizer dosing system is characterized by comprising the above-mentioned nebulizer dosing medicine cup, the nebulizer dosing medicine cup being equipped with a nebulizer dosing medicine pressing device and a nebulizer dosing medicine controller, the nebulizer dosing medicine cup being equipped with a nebulizer dosing medicine pressing device and a nebulizer dosing medicine controller, the nebulizer dosing medicine pressing device being electrically connected to the nebulizer dosing medicine controller, the nebulizer dosing medicine pressing device comprising an electric device and a pressing head, the electric device of the nebulizer dosing medicine controller driving the pressing head to press the medicine bottle cap in the nebulizer dosing medicine cup downward once for dosing and then release and reset.

[0014] Further improvement of the above technical solution: the electric device is a motor, an electromagnetic coil or a piezoelectric device, the pressing head includes a lever, a support and a tension spring, the middle of the lever is hinged to the support, one end of the lever is connected to one end of the tension spring, and the other end of the tension spring is connected to the support, a pressing part is provided on the bottom surface of the other end of the lever, and the pressing part is used to press the medicine bottle cap, the motor, electromagnetic coil or piezoelectric device is equipped with a driving component, and the driving component is used to drive the end of the lever with the pressing part to move downward to press the medicine bottle cap once and release it to reset, and the tension spring is used to reset the lever.

[0015] A control method for a nebulizer quantitative drug delivery system, characterized in that the control method comprises the following steps:

[0016] Step 1: The nebulizer quantitative drug delivery controller reads the single-press drug delivery data of the nebulizer quantitative drug cup;

[0017] Step 2: The nebulizer quantitative drug delivery controller reads the amount of drug required for this nebulization;

[0018] Step 3: The nebulizer quantitative drug delivery controller calculates the number of presses corresponding to the amount of drug required for this nebulization;

[0019] Step 4: The nebulizer quantitative drug delivery controller controls the nebulizer quantitative drug delivery pressing device to complete one pressing drug delivery;

[0020] Step 5: The nebulizer quantitative drug delivery controller detects whether the required number of presses is reached. If not, step 4 is repeated. If so, the quantitative drug delivery process ends.

[0021] Further improvement to the above technical solution: In step 3, if the calculated number of presses is less than 2 times, it is necessary to replace a set of piston valves and liquid medicine tubes with smaller sizes; if the calculated number of presses is greater than 10 times, it is necessary to replace a set of piston valves and liquid medicine tubes with larger sizes.

[0022] Compared with the prior art, the present invention has the following advantages and positive effects:

[0023] 1. The present invention can realize precise micro-quantitative drug delivery by the nebulizer, and the single-press drug delivery amount is precise and constant;

[0024] 2. The present invention can effectively avoid the deviation of the nebulizer drug dosage caused by various operating factors, thereby ensuring the atomization effect and saving expensive atomized drugs;

[0025] 3. The present invention is simple and convenient to operate, and precise quantitative drug delivery can be achieved by simply pressing the nebulizer;

[0026] 4. The single dosage of the present invention is determined by the cross-sectional diameter of the liquid medicine tube and the size of the piston valve. By adjusting the parameters of the accessories, any desired micro-quantitative dosage can be achieved;

[0027] 5. The quantitative medicine cup of the present invention comes with a liquid medicine bottle, and the capacity of the liquid medicine bottle can be adjusted as needed, which is independent of the accuracy of the nebulizer medication. This simplifies the medication preparation operation and avoids the repeated medication preparation operation required by the traditional syringe medication method.

[0028] 6. The present invention can realize precise micro-quantity dosing by automated nebulizer, further improve the atomization efficiency and save labor;

[0029] 7. The present invention simplifies automatic nebulizer dosing. Compared to existing devices that automatically press the syringe to achieve automatic dosing, the present invention requires only a single complete operation of pressing and releasing the bottle cap, avoiding the complex operational control process of existing devices that require strict control of the pressing process to achieve precise dosing. This simplifies the implementation and control of related automatic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of a nebulizer quantitative medicine cup in a nebulizer precise quantitative drug delivery device of the present invention;

[0031] Figure 2 This is an exploded view of the assembly of a nebulizer metering medicine cup in a nebulizer precise metering drug delivery device of the present invention;

[0032] Figure 3 It is a top view of a nebulizer quantitative medicine cup in a nebulizer precise quantitative drug delivery device of the present invention;

[0033] Figure 4 yes Figure 3 AA sectional view;

[0034] Figure 5 It is a top view of a quantitative drug delivery valve in a precise quantitative drug delivery device for a nebulizer according to the present invention;

[0035] Figure 6 yes Figure 5 BB cross-sectional view;

[0036] Figure 7 This is an exploded view of the assembly of a quantitative drug delivery valve in a precise quantitative drug delivery device for a nebulizer according to the present invention;

[0037] Figure 8 A front view of a piston valve in a quantitative drug delivery valve in a precise quantitative drug delivery device for a nebulizer according to the present invention;

[0038] Figure 9 yes Figure 8 CC-direction enlarged cross-sectional view;

[0039] Figure 10 This is a structural block diagram of a nebulizer precise quantitative drug delivery device of the present invention;

[0040] Figure 11 This is a flow chart of a control method of a nebulizer precise quantitative drug delivery device of the present invention.

[0041] The numbers in the figure are: 1, medicine bottle cap; 2, medicine bottle; 3, valve body cap; 4, nebulizer medicine cup cap; 5, atomizing unit; 6, mist outlet nozzle; 7, quantitative dosing valve assembly; 7-1, piston cylinder; 7-2, spring I; 7-3, piston valve; 7-4, piston; 7-5, spring II; 7-6, sealing cap; 7-7, medicine tube; 7-8, medicine inlet I; 7-9, medicine inlet II; 8, power socket; 9, PIN needle. DETAILED DESCRIPTION

[0042] The following is a further detailed description of this patent with reference to the accompanying drawings:

[0043] See also Figures 1-9 An embodiment of a nebulizer metered medicine cup according to the present invention includes a nebulizer medicine cup body and a nebulizer medicine cup cover 4, as well as a metered medicine supply cup. The metered medicine supply cup includes a liquid medicine bottle 2, a liquid medicine bottle cover 1, a valve body cover 3, and a metered medicine delivery valve assembly 7. The liquid medicine bottle cover 1 is disposed on top of the liquid medicine bottle 2. The upper portion of the valve body cover 3 is detachably connected to the bottom of the liquid medicine bottle 2. The lower portion of the valve body cover 3 is detachably connected to the nebulizer medicine cup cover 4, and the metered medicine delivery valve assembly 7 is disposed within the valve body cover 3. The upper portion of the metered medicine delivery valve assembly 7 communicates with the bottom of the liquid medicine bottle 2. A medicine delivery hole is provided in the nebulizer medicine cup cover 4. The lower portion of the metered medicine delivery valve assembly 7 is connected to the medicine delivery hole in the nebulizer medicine cup cover 4, thereby forming a liquid medicine passage between the liquid medicine bottle 2 and the nebulizer medicine cup body. In the initial position, the dosing valve assembly closes the liquid medicine passage. Pressing the liquid medicine bottle cap 1 downward causes the cap 1, liquid medicine bottle 2, and valve cover 3 to move downward, and the dosing valve assembly opens the liquid medicine passage, allowing the liquid medicine in the liquid medicine bottle 2 to be quantitatively delivered to the nebulizer medicine cup body. When the liquid medicine bottle cap 1 is released, the cap 1, liquid medicine bottle 2, valve cover 3, and dosing valve assembly automatically return to the initial position, causing the dosing valve assembly to close the liquid medicine passage.

[0044] Specifically: the above-mentioned quantitative dosing valve assembly 7 includes a piston cylinder 7-1, a spring I 7-2, a piston valve 7-3, a piston 7-4, a spring II 7-5, a sealing cover 7-6 and a medicine liquid tube 7-7. The piston cylinder 7-1 is vertically arranged in the valve body cover 3. The top of the piston cylinder 7-1 is provided with a plurality of vertical grooves as the medicine liquid inlet I 7-8, and a groove is vertically provided on the side wall of the piston valve 7-3 as the medicine liquid inlet II 7-9. The top of the piston cylinder 7-1 is inserted upward into the medicine liquid bottle 2, and a sealing cover 7-6 is provided at the bottom of the piston cylinder 7-1. The upper part of the medicine liquid tube 7-7 is inserted into the piston cylinder 7-1. The outer side of the upper part of the medicine liquid tube 7-7 is provided with a spring I 7-2, a piston valve 7-3, a piston 7-4 and a spring II 7-5 in sequence from top to bottom. The lower part of the medicine liquid tube 7-7 is inserted into the medicine supply hole on the nebulizer medicine cup cover 4. In the initial state, the piston valve 7-3 is closed by the piston 7-4 and the sealing cover 7-6; when the liquid medicine bottle cap 1 is pressed downward, the liquid medicine bottle cap 1, the liquid medicine bottle 2, the valve body cover 3 and the quantitative dosing valve assembly 7 except the liquid medicine tube 7-7 move downward as a whole, causing the liquid medicine tube 7-7 to move upward relative to the remaining components in the quantitative dosing valve assembly 7, thereby compressing the spring I 7-2 and the spring II 7-5, so that the piston valve 7-3 is opened, and is used to allow the liquid medicine in the liquid medicine bottle 2 to enter the liquid medicine tube 7-7 from the liquid medicine inlet II 7-9; when the liquid medicine bottle cap 1 is released, under the action of the spring I 7-2 and the spring II 7-5, the piston valve 7-3 automatically returns to its original position, and the piston valve 7-3 is again closed by the piston 7-4 and the sealing cover 7-6.

[0045] Furthermore, an annular protrusion is provided in the middle of the liquid medicine tube 7-7. The diameter of the annular protrusion is slightly larger than the medicine supply hole in the nebulizer medicine cup cover 4. The portion of the liquid medicine tube 7-7 below the annular protrusion is inserted into the nebulizer medicine cup body. Due to the obstruction of the annular protrusion, the length of the liquid medicine tube 7-7 that can be inserted into the nebulizer medicine cup cover is limited. This allows the liquid medicine outlet of the liquid medicine tube 7-7 to be precisely positioned near the appropriate position above the atomizer element in the nebulizer unit 5 for drug delivery, which is beneficial for improving the atomization effect.

[0046] Furthermore, the above-mentioned quantitative drug delivery valve assembly 7 is equipped with at least two sets of piston valves 7-3 and liquid medicine tubes 7-7 of different sizes. The outer diameter of the piston valve 7-3 in each set matches the inner diameter of the liquid medicine tube 7-7. Since the amount of drug delivered by a single press is determined by the inner diameter of the liquid medicine tube 7-7 and the outer diameter of the piston valve, when the above parameters are constant (i.e., the inner diameter of the liquid medicine tube 7-7 and the outer diameter of the piston valve 7-3 are fixed), the amount of liquid medicine delivered by a single press into the liquid medicine tube 7-7 is a fixed amount. By replacing liquid medicine tubes 7-7 and piston valves 7-3 of different sizes, quantitative drug delivery of different sizes can be achieved.

[0047] Furthermore, the upper inner side of the valve cover 3 is internally threaded, and the lower portion of the liquid medicine bottle 2 is externally threaded, allowing the upper portion of the valve cover 3 to be threadedly connected to the lower portion of the liquid medicine bottle. A corresponding socket is also provided on the inner side of the lower portion of the valve cover 3, and the upper portion of the nebulizer medicine cup cover 4 is plugged into the socket on the lower portion of the valve cover 3, thus achieving a detachable connection and facilitating installation and removal.

[0048] See also Figures 1-10 An embodiment of a nebulizer quantitative drug delivery system of the present invention includes the above-mentioned nebulizer quantitative drug cup, the nebulizer quantitative drug delivery cup is equipped with a nebulizer quantitative drug delivery pressing device and a nebulizer quantitative drug delivery controller, the nebulizer quantitative drug delivery pressing device is electrically connected to the nebulizer quantitative drug delivery controller, the nebulizer quantitative drug delivery pressing device includes an electric device and a pressing head, the nebulizer quantitative drug delivery controller and the electric device drive the pressing head to press the liquid medicine bottle cap in the nebulizer quantitative drug delivery cup downward once to deliver the drug and release it to reset.

[0049] Furthermore, the above-mentioned electric device is a motor, an electromagnetic coil or a piezoelectric device, and the pressing head includes a lever, a support and a tension spring. The middle of the lever is hinged to the support, one end of the lever is connected to one end of the tension spring, and the other end of the tension spring is connected to the support. A pressing part is provided on the bottom surface of the other end of the lever, and the pressing part is used to press the medicine bottle cap. The motor, electromagnetic coil or piezoelectric device is equipped with a driving component, and the driving component is used to drive the end of the lever with the pressing part to move downward to press the medicine bottle cap 1 once and release it to reset, and the tension spring is used to reset the lever.

[0050] In actual use, the nebulizer cup body in the above-mentioned nebulizer dosing system is connected to the atomizing unit 5. The atomizing element installed in the atomizing unit 5 is generally an atomizing plate. The nebulizer cup body is also provided with a power socket 8. A PIN 9 provided in the power socket 8 is connected to the atomizing plate in the atomizing unit 5 through an electrical circuit. The bottom of the atomizing unit 5 is connected to the mist outlet 6.

[0051] In actual use, due to the action of spring I 7-2, the liquid medicine inlet II 7-9 on the piston valve 7-3 is enclosed by the piston 7-4, preventing the liquid medicine from entering the liquid medicine tube 7-7 through the liquid medicine inlet II 7-9. More importantly, when the user presses the liquid medicine bottle cap 1, the liquid medicine bottle 2, the valve body cover 3, and the entire dosing valve assembly 7, excluding the liquid medicine tube 7-7, move downward relative to the nebulizer medicine cup cover 4. Because the liquid medicine tube 7-7 is fixed to the nebulizer medicine cup cover 4 by the annular protrusion and cannot move, the relative position of the liquid medicine tube 7-7 and the nebulizer medicine cup cover 4 is fixed, resulting in an upward movement relative to the other components of the dosing valve assembly 7, thereby compressing spring I 7-2 and spring II 7-5, causing the piston valve 7-3 to move upward to the top of the piston cylinder 7-1, resulting in the piston 7-4 no longer being able to seal the liquid medicine inlet II 7-9 on the piston valve 7-3. As a result, the drug liquid enters the liquid inlet I 7-8 of the piston cylinder 7-1, further enters the liquid tube 7-7 through the liquid inlet II 7-9 of the piston valve 7-3, and then drips downward into the nebulizer medicine cup body. When the user releases the liquid bottle cap 1, the spring I 7-2 and spring II 7-5 work together to return the piston valve 7-3 to its original position, and the liquid inlet II 7-9 is re-sealed by the piston 7-4. The liquid in the liquid bottle 2 can no longer enter the liquid tube 7-7, and a single dose of drug is completed.

[0052] See also Figures 1-11 , an embodiment of a control method of a nebulizer quantitative drug delivery system of the present invention, the control method comprises the following steps:

[0053] Step 1: The nebulizer quantitative drug delivery controller reads the single-press drug delivery data of the nebulizer quantitative drug cup;

[0054] Step 2: The nebulizer quantitative drug delivery controller reads the amount of drug required for this nebulization;

[0055] Step 3: The nebulizer quantitative drug delivery controller calculates the number of presses corresponding to the amount of drug required for this nebulization;

[0056] Step 4: The nebulizer quantitative drug delivery controller controls the nebulizer quantitative drug delivery pressing device to complete one pressing drug delivery;

[0057] Step 5: The nebulizer quantitative drug delivery controller detects whether the required number of presses is reached. If not, step 4 is repeated. If so, the quantitative drug delivery process ends.

[0058] Furthermore, in step 3, if the calculated number of presses is less than 2 times, it is necessary to replace a set of piston valves 7-3 and liquid medicine tubes 7-7 with smaller sizes; if the calculated number of presses is greater than 10 times, it is necessary to replace a set of piston valves 7-3 and liquid medicine tubes 7-7 with larger sizes.

[0059] In actual use, based on the amount of medicine required for the current nebulization treatment and the single press of the above-mentioned nebulizer metering medicine cup, the number of presses required for the current nebulization treatment is calculated, and the nebulizer metering medicine cup pressing device is controlled to press the nebulizer metering medicine cup a given number of times, thereby achieving precise micro-quantitative dosing of the nebulizer. For example, the current nebulizer metering medicine cup single press dosage is 0.01mL, and the total amount of precise dosing required for this nebulization is 0.03mL. The number of presses N is: 0.03mL / 0.01mL = 3 times, and pressing 3 times can meet the total amount of precise quantitative dosing requirements. The nebulizer quantitative dosing controller then controls the nebulizer quantitative dosing pressing device to press the nebulizer metering medicine cup 3 times to complete the automatic precise quantitative dosing of the current nebulization treatment.

[0060] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the scope of protection of the present invention.

Claims

1. A nebulizer metered medicine cup, comprising a nebulizer medicine cup body and a nebulizer medicine cup cover, characterized in that: The invention also includes a quantitative medicine supply cup, which includes a liquid medicine bottle, a liquid medicine bottle cap, a valve body cap and a quantitative medicine delivery valve assembly. The liquid medicine bottle cap is arranged on the top of the liquid medicine bottle, the upper part of the valve body cap is detachably connected to the bottom of the liquid medicine bottle, the lower part of the valve body cap is detachably connected to the nebulizer medicine cup cap, and the quantitative medicine delivery valve assembly is placed in the valve body cap, the upper part of the quantitative medicine delivery valve assembly is communicated with the bottom of the liquid medicine bottle, the nebulizer medicine cup cap is provided with a medicine supply hole, and the lower part of the quantitative medicine delivery valve assembly is connected to the nebulizer medicine cup cap. The medicine supply hole on the cover is connected to form a medicine liquid passage between the medicine liquid bottle and the nebulizer medicine cup body; in the initial position, the quantitative drug delivery valve assembly closes the medicine liquid passage, and the medicine liquid bottle cover is pressed downward to move the medicine liquid bottle cover, the medicine liquid bottle and the valve body cover downward, and the quantitative drug delivery valve assembly opens the medicine liquid passage for quantitatively delivering the medicine in the medicine liquid bottle to the nebulizer medicine cup body; when the medicine liquid bottle cover is released, the medicine liquid bottle cover, the medicine liquid bottle, the valve body cover and the quantitative drug delivery valve assembly automatically return to the initial position, so that the quantitative drug delivery valve assembly is closed. Close the liquid medicine passage; the quantitative dosing valve assembly includes a piston cylinder, a spring I, a piston valve, a piston, a spring II, a sealing cover and a liquid medicine tube, the piston cylinder is vertically arranged in the valve body cover, the top of the piston cylinder is provided with a plurality of vertical grooves as the liquid medicine inlet I, the side wall of the piston valve is vertically provided with a groove as the liquid medicine inlet II, the top of the piston cylinder is upwardly inserted into the liquid medicine bottle, the bottom of the piston cylinder is provided with the sealing cover, the upper part of the liquid medicine tube is inserted into the piston cylinder, and the outer side of the upper part of the liquid medicine tube is provided with the spring I, the piston valve, the piston from top to bottom. and spring II, the lower portion of the liquid medicine tube is inserted into the medicine supply hole on the nebulizer medicine cup cover; in an initial state, the piston valve is closed by the piston and the sealing cover; in a state in which the liquid medicine bottle cover is pressed downward, the liquid medicine bottle cover, the valve body cover and the quantitative drug delivery valve assembly except the liquid medicine tube move downward as a whole, causing the liquid medicine tube to move upward relative to the remaining components of the quantitative drug delivery valve assembly, thereby compressing the springs I and II and opening the piston valve to allow the liquid medicine in the liquid medicine bottle to enter the liquid medicine tube from the liquid medicine inlet II; When the medicine bottle cap is released, the piston valve automatically returns to its original position under the action of the spring I and the spring II, and the piston valve is re-sealed by the piston and the sealing cover.

2. The nebulizer metered medicine cup according to claim 1, characterized in that: An annular protrusion is provided in the middle of the medicine liquid tube, the diameter of which is slightly larger than the medicine supply hole on the nebulizer medicine cup cover, and the portion of the medicine liquid tube below the annular protrusion is inserted into the nebulizer medicine cup body.

3. The nebulizer metered medicine cup according to claim 2, characterized in that: The quantitative drug delivery valve assembly is equipped with at least two sets of piston valves and liquid medicine tubes of different sizes. The outer diameter of the piston valve in each set matches the inner diameter of the liquid medicine tube.

4. The nebulizer metered medicine cup according to any one of claims 1 to 3, characterized in that: The inner side surface of the upper part of the valve body cover is provided with a thread, and the lower part of the medicine liquid bottle is provided with an external thread, and the upper part of the valve body cover is screwed to the lower part of the medicine liquid bottle; the inner side of the lower part of the valve body cover is also provided with a corresponding socket, and the upper part of the nebulizer medicine cup cover is plugged into the socket of the lower part of the valve body cover.

5. A nebulizer quantitative drug delivery system, characterized in that: The nebulizer metered medicine cup comprises the nebulizer metered medicine cup according to any one of claims 1 to 4, wherein the nebulizer metered medicine cup is equipped with a nebulizer metered drug administration pressing device and a nebulizer metered drug administration controller, the nebulizer metered drug administration pressing device is electrically connected to the nebulizer metered drug administration controller, the nebulizer metered drug administration pressing device comprises an electric device and a pressing head, the nebulizer metered drug administration controller controls the electric device to drive the pressing head to press the medicine liquid bottle cap in the nebulizer metered medicine cup downward once for drug administration and release it to reset.

6. The nebulizer quantitative drug delivery system according to claim 5, characterized in that: The electric device is a motor, an electromagnetic coil or a piezoelectric device, and the pressing head includes a lever, a support and a tension spring. The middle of the lever is hinged to the support, one end of the lever is connected to one end of the tension spring, and the other end of the tension spring is connected to the support. A pressing part is provided on the bottom surface of the other end of the lever, and the pressing part is used to press the medicine bottle cap. The motor, electromagnetic coil or piezoelectric device is equipped with a driving component, and the driving component is used to drive the end of the lever with the pressing part to move downward to press the medicine bottle cap once and release it to reset it, and the tension spring is used to reset the lever.

7. A control method for the nebulizer quantitative drug delivery system according to claim 5 or 6, characterized in that: The control method includes the following steps: Step 1: The nebulizer quantitative drug delivery controller reads the single-press drug delivery data of the nebulizer quantitative drug cup; Step 2: The nebulizer quantitative drug delivery controller reads the amount of drug required for this nebulization; Step 3: The nebulizer quantitative drug delivery controller calculates the number of presses corresponding to the amount of drug required for this nebulization.

8. The control method of the nebulizer quantitative drug delivery system according to claim 7, characterized in that: In step 3, if the calculated number of presses is less than 2 times, a set of piston valves and liquid medicine tubes with smaller size specifications need to be replaced; if the calculated number of presses is greater than 10 times, a set of piston valves and liquid medicine tubes with larger size specifications need to be replaced.

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