Automatic dispensing equipment

Abstract

The utility model discloses automatic medicine dispensing equipment, which belongs to the field of automatic medicine dispensing control and comprises a medicine dispensing component, and the medicine dispensing component comprises a medicine dispensing device. The medicine dispensing device is provided with a medicine dispensing assembly and an air pressure balance assembly, and the medicine dispensing assembly is provided with a liquid channel puncture needle and a liquid containing cavity communicated with the rear end of the liquid channel puncture needle. The air pressure balance assembly is provided with an airway puncture needle and an air containing cavity communicated with the rear end of the airway puncture needle. By means of the equipment, medicine dispensing automation of medicine, especially dangerous medicine can be achieved, manual medicine dispensing errors are reduced, and protection on medical personnel safety is improved; the whole-course leakproofness is good, direct or indirect contact in the medicine preparation process is avoided, and the medicine leakage risk is reduced; the equipment has the functions of self-cleaning, cleaning and the like, and can meet the current practical application requirements with high cost performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the automatic medicine dispensing control field especially, and relates to an automatic medicine dispensing equipment. BACKGROUND

[0002] The medicine liquid input into the patient's body in the clinic is mostly mixed by multiple medicine liquids. The existing medicine dispensing is generally manually operated, and the labor cost is high, the labor intensity is big, and the medicine dispensing may also appear the failure condition, which can threaten the safety of the patient's intravenous drug. The automatic medicine dispensing equipment can solve it, and can automatically complete the preparation process such as dissolution and dilution of the medicine, can liberate the medical staff from such tedious work, and simultaneously the use of the device can improve the medicine dispensing efficiency and reduce the risk of medicine liquid pollution in the repeated operation process.

[0003] On the other hand, the dangerous medicine represented by the chemotherapy medicine has great harm to the health of the medical staff who long-term engage in the preparation and transportation of such medicine. Some medical institutions have built various purification rooms, biological cabinets and other facilities to reduce the risk of medicine leakage, and the investment is great but the actual popularization and application effect is poor. Some places use automatic medicine dispensing equipment in the prior art, but the existing automatic medicine dispensing equipment still has the problems of medicine liquid leakage or medicine liquid pollution in frequent operation, and further harms the health of the medical staff or the patient. For example, due to the imbalance of the air pressure inside and outside the medicine container in the preparation process, the medicine liquid leaks from the puncture hole of the bottle mouth, or the air is sucked into the puncture hole of the bottle mouth and the medicine liquid is polluted. For another example, after the syringe is pulled out, the medicine liquid in the syringe overflows or leaks through the needle port.

[0004] Therefore, it is necessary to develop a safer and demand-fitting automatic medicine dispensing equipment and a corresponding medicine dispensing method to reduce the medicine preparation risk and improve the medicine dispensing efficiency and accuracy. SUMMARY

[0005] In view of the deficiencies of the prior art and the application requirements, the purpose of the utility model is to provide an automatic medicine dispensing equipment, which can realize convenient and accurate automatic medicine dispensing, balance the air pressure in the medicine container, and has good sealing property and small leakage risk in the whole medicine dispensing process.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme.

[0007] An automatic medicine dispensing equipment comprises a medicine dispensing component, characterized in that: the medicine dispensing component comprises a medicine dispenser; the medicine dispenser has a medicine dispensing assembly and an air pressure balancing assembly, the medicine dispensing assembly is provided with a liquid channel puncture needle and a liquid cavity connected to the rear end of the liquid channel puncture needle; and the air pressure balancing assembly is provided with an air channel puncture needle and an air cavity connected to the rear end of the air channel puncture needle.

[0008] Preferably, the dispensing component further comprises a needle seal. The needle seal is used to seal the needle of the liquid passage puncture needle in the dispensing assembly, or is used to simultaneously seal the needles of the liquid passage puncture needle in the dispensing assembly and the gas passage puncture needle in the gas pressure balancing assembly.

[0009] The utility model further provides an automatic dispensing method using the automatic dispensing equipment, at least comprising the following steps:

[0010] S100, control the automatic dispensing equipment, drive the needle seal to connect the medicine container bottle mouth;

[0011] S200, drive the dispenser to move to the medicine container direction, until the needle of liquid passage puncture needle and gas passage puncture needle punctures the needle seal and the bottle mouth of medicine container and enters the medicine container;

[0012] S300, drive the dispenser to extract the liquid medicine from the medicine container, or drive the dispenser to inject the liquid medicine into the medicine container;

[0013] S400, drive the dispenser to move to the direction away from the medicine container, until the needle of liquid passage puncture needle and gas passage puncture needle is pulled out from the inside of medicine container and the bottle mouth of medicine container in turn, and is sealed in the needle seal again.

[0014] In step S300, drive the dispenser to extract the liquid medicine from the medicine container, comprising: S301, the automatic dispensing equipment controls the negative pressure inside the liquid cavity, and / or the automatic dispensing equipment controls the positive pressure inside the gas cavity, so that the liquid medicine in the medicine container flows to the liquid cavity through the liquid passage puncture needle, and the gas in the gas cavity flows to the medicine container through the gas passage puncture needle;

[0015] In step S300, drive the dispenser to inject the liquid medicine into the medicine container, which can comprise: S302, the automatic dispensing equipment controls the positive pressure inside the liquid cavity, and / or the automatic dispensing equipment controls the negative pressure inside the gas cavity, so that the liquid medicine in the liquid cavity flows to the medicine container through the liquid passage puncture needle, and the gas in the medicine container flows to the gas cavity through the gas passage puncture needle.

[0016] It is easy to understand that the foregoing equipment and dispensing method of the utility model are suitable for various types of medicine containers, for example, can be a vial, an infusion bottle or an infusion bag.

[0017] In the automatic dispensing equipment of the utility model, the dispensing assembly and the gas pressure balancing assembly can be independent.

[0018] As a specific embodiment, the dispensing assembly is a first syringe, and the gas pressure balancing assembly is a second syringe; the needle seal includes a first seal and a second seal; in the initial state, the first seal is arranged at the front end of the needle tube of the first syringe in a manner of wrapping and sealing the needle port, and the second seal is arranged at the front end of the needle tube of the second syringe in a manner of wrapping and sealing the needle port.

[0019] In the foregoing embodiment, the liquid passage puncture needle and the gas passage puncture needle are respectively communicated with the first syringe barrel and the second syringe barrel; the first piston rod is slidably arranged in the inner cavity of the first syringe barrel, and the first piston rod and the first syringe barrel cooperate to form a liquid cavity that forms a pressure difference through volume change; the second piston rod is slidably arranged in the inner cavity of the second syringe barrel, and the second piston rod and the second syringe barrel cooperate to form a gas cavity that forms a pressure difference through volume change.

[0020] As another specific embodiment, the liquid passage puncture needle is a first needle tube, and the gas passage puncture needle is a second needle tube; the rear end of the first needle tube is connected to the front end of a first containing tube, the rear end of the first containing tube is connected to a liquid storage cavity, the rear end of the second needle tube is connected to the front end of a second containing tube, and the rear end of the second containing tube is connected to a gas bag; the liquid storage cavity and the gas bag are respectively a liquid cavity and a gas cavity, and the first containing tube and the second containing tube are connecting members.

[0021] In the automatic dispensing device, the dispensing assembly and the gas pressure balancing assembly can be integrated.

[0022] As a specific embodiment, the dispensing device includes a first needle tube, a second needle tube, a first needle seat, a first syringe barrel and a second syringe barrel; the rear ends of the first needle tube and the second needle tube are fixed to the front end of the first needle seat, the rear end of the first needle seat is fixedly connected to the front ends of the first syringe barrel and the second syringe barrel, two channels independent of each other are arranged in the first needle seat, the first needle tube is communicated with the first syringe barrel through the first channel, and the second needle tube is communicated with the second syringe barrel through the second channel; the first needle tube and the first syringe barrel communicated through the needle seat constitute a dispensing assembly, and the first needle tube is a liquid passage puncture needle; the second needle tube and the second syringe barrel communicated through the needle seat constitute a gas pressure balancing assembly, and the second needle tube is a gas passage puncture needle.

[0023] In the foregoing embodiment, preferably, the liquid passage puncture needle and the gas passage puncture needle are double-layer columnar structures, an outer channel of the double-layer columnar structure is a liquid channel, and an inner channel of the double-layer columnar structure is a gas channel; or the liquid passage puncture needle and the gas passage puncture needle are arranged in a structure of double-needle in parallel.

[0024] Preferably, in the foregoing embodiment, the first syringe and the second syringe are fixedly connected to each other and detachable. As a specific embodiment, the first needle seat is internally provided with a first channel and a second channel, is provided with a gas window on the side surface, and is provided with a cavity at the end for fixed connection with the connector on the first syringe; the end of the first channel is in communication with the cavity, and the end of the second channel is in communication with the gas window; the gas window is internally provided with a sealing plug; the front end of the second syringe is provided with a second needle seat and a puncture needle fixedly connected to the second needle seat. In the fixed connection state of the first syringe and the second syringe, the puncture needle at the front end of the second syringe pierces the sealing plug in the gas window of the first needle seat and realizes communication with the second channel in the first needle seat; when the first syringe and the second syringe are separated, the sealing plug in the gas window makes the gas window in a sealed state.

[0025] Further preferably, the second channel of the first needle seat is internally provided with a pass-stop module for controlling the penetration or blockage of the second channel, so as to further ensure the sealing of the second channel relative to the outside. As an embodiment, the pass-stop module is a rotatable stop valve, and a through hole is arranged in the valve; the stop valve is rotated to make the through hole in register or out of register with the second channel, so as to conveniently realize the penetration or blockage of the two channels.

[0026] Further preferably, the first needle seat is radially provided with a protruding portion on the side close to the second channel, and the gas window is arranged at the end of the protruding portion.

[0027] The automatic dispensing device of the utility model comprises a pressure generating component. As a specific embodiment, the pressure generating component generates pressure change in the liquid container cavity and / or the gas container cavity by controlling the advance and retreat of the push rod in the syringe. As another specific embodiment, when the dispensing device selects the configuration comprising the liquid storage cavity, the gas bag, the first containing pipe and the second containing pipe as described above, the pressure generating component can be a peristaltic pump, which generates pressure in the pipe of the containing pipe by driving.

[0028] In the automatic dispensing device of the utility model, the needle head sealing member seals one or both of the liquid channel puncture needle and the gas channel puncture needle when they are pulled out of the medicine container.

[0029] As a preferred embodiment, the needle seal has a sleeve device sleeved outside the syringe or the first needle seat, the sleeve device has a sliding groove inside, the syringe or the needle seat has a convex rib outside matched with the sliding groove, the convex rib and the sliding groove enable the sleeve device to slide axially on the syringe or the needle seat and limit relative rotation; a sealing device for the liquid channel puncture needle and / or the air channel puncture needle to pass through is arranged at the top of the sleeve, and an elastic device is arranged between the sealing device and the top of the needle seat; in the initial state, the elastic device supports the sealing device, so that the sealing device wraps the needle of the liquid channel puncture needle and / or the air channel puncture needle to seal it, and in the pressure state, the elastic device is compressed so that the needle penetrates out of the sealing device.

[0030] The automatic dispensing device also comprises a dispensing component moving part, a pressure generating part, and a medicine bottle placing part.

[0031] The dispensing component moving part comprises a moving platform and a needle cylinder clamp arranged on the moving platform.

[0032] The pressure generating part is arranged on the moving platform.

[0033] The medicine bottle placing part comprises a medicine bottle clamp, which is used to clamp the medicine bottle; the medicine bottle clamp is provided in plurality and assembled circumferentially on a moving wheel disc; the moving wheel disc is rotatably arranged, and the opening part of the medicine bottle clamp is arranged towards the axial direction of the moving wheel disc; the opposite sides of the moving wheel disc are provided with a bottle hanging manipulator and a bottle taking manipulator, which can automatically hang or take the medicine bottle into or out of the medicine bottle clamp; the moving wheel disc is provided with a working position corresponding to the moving platform.

[0034] The moving platform is used to drive the dispensing device and the needle seal to move and rotate between the transverse X axis and the longitudinal Y axis, so that the dispensing component can be moved to a set position and adjusted to a specific posture relative to the medicine container. As a preferred embodiment, the dispensing component moving part comprises a puncture moving mechanism arranged on the moving platform and capable of moving linearly forward and backward along a set track on the moving platform; the needle cylinder clamp is fixedly arranged on the puncture moving mechanism and used to clamp, for example, a syringe. Preferably, the pressure generating part is arranged on the puncture moving mechanism.

[0035] As a preferred embodiment, the bottle hanging manipulator and the bottle picking manipulator are provided with scanning devices; the scanning devices scan information labels on the medicine bottles to obtain medicine information for operation; the medicine bottle clamps have corresponding information labels, when the medicine bottles are hung, the scanning devices of the bottle hanging manipulators scan the information labels on the medicine bottles and the corresponding information labels on the medicine bottle clamps and associate the two; when the medicine bottles are picked, the scanning devices of the bottle picking manipulators scan the information labels on the medicine bottles and the corresponding information labels on the medicine bottle clamps, if the information is inconsistent with the associated information, an alarm is given, if the information is consistent, the associated information is released and the medicine bottles are picked.

[0036] After receiving the dispensing information, the control device rotates the required medicine bottles to a working position according to the associated information of the medicine bottles and the medicine bottle clamps for the mobile platform to work close. Preferably, the mobile platform is provided with a second scanning device, which scans the information labels on the medicine bottles and the corresponding information labels on the medicine bottle clamps, if the information is inconsistent with the associated information, an alarm is given, if the information is consistent, the dispensing work is carried out.

[0037] The automatic dispensing equipment of the utility model further can include component moving mechanism, be used for clamping fixed needle seal, the component moving mechanism can be movably arranged on the dispensing component moving part. Preferably, the component moving mechanism includes seal clamp, is used for clamping needle seal. When the equipment operates, control dispensing component moving part, drive dispensing device and needle seal move, until the front end of needle seal and the bottle mouth of medicine container abut, then control component moving mechanism position does not change, through control dispensing component moving part drive dispensing device moves to the direction of medicine container, until needle pierces needle seal and the bottle mouth of medicine container and enters medicine container. After extracting / infusing liquid medicine, control dispensing component moving part, drive dispensing device moves to the direction of medicine container, until needle is pulled out from inside medicine container and the bottle mouth of medicine container in proper order, and is sealed in needle seal again.

[0038] As a preferred embodiment, the automatic dispensing equipment is provided with a self-checking program, the bottle hanging manipulator grasps medicine according to the set program to the specified position, the scanning device of the bottle hanging manipulator scans medicine information before grasping and checks it with the medicine list information previously input into the system, if the information is inconsistent, an alarm is given, if the information is consistent, the dispensing process is continued.

[0039] Further preferably, the automatic dispensing equipment is connected with the prescription system of the hospital, and automatically obtains the dispensing information issued by the doctor to be used in the self-checking program.

[0040] As a preferred embodiment, the automatic dispensing equipment further includes a disinfection device, which can disinfect the specified components and / or positions in the automatic dispensing equipment according to the set program. Preferably, the disinfection is carried out by spraying disinfectant or irradiating ultraviolet rays.

[0041] As a preferred embodiment, the automatic dispensing device further has a self-cleaning device and a drying device, and can run a self-cleaning mode to clean and dry the automatic dispensing device between two dispensing operations as needed.

[0042] Compared with the prior art, the automatic dispensing device has the advantages that: the automatic dispensing device can realize automatic dispensing of dangerous drugs, reduce manual dispensing errors, and improve the protection of medical staff safety. During the dispensing process, the internal and external air pressures of the drug container are balanced. When a certain amount of drug solution is extracted, gas will be supplemented into the drug container. When a certain amount of drug solution is injected, the gas in the drug container will be discharged. In combination with the needle sealing element, the leakage of the drug solution can be effectively avoided, and the force control during automatic extraction and injection is simpler. The automatic dispensing device has simple structure and low cost, and can meet the current actual application requirements with high cost performance. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 FIG. 1 is a flowchart of an automatic dispensing method according to the present application.

[0044] Figure 2 FIG. 3 is a partial schematic structural view of an automatic dispensing device used in the automatic dispensing method according to the present application.

[0045] Figure 3 FIG. 5 is a cross-sectional structural view of a dispensing component used in the automatic dispensing method according to the first embodiment of the present application.

[0046] Figure 4 FIG. 7 is a schematic view of the structure of an automatic dispensing device and a first dispensing process used in the automatic dispensing method according to the first embodiment of the present application.

[0047] Figure 5 FIG. 9 is a schematic view of the structure of an automatic dispensing device and a second dispensing process used in the automatic dispensing method according to the first embodiment of the present application.

[0048] Figure 6 FIG. 11 is a schematic view of the structure of an automatic dispensing device and a third dispensing process used in the automatic dispensing method according to the first embodiment of the present application.

[0049] Figure 7 FIG. 13 is a schematic view of the structure of an automatic dispensing device and a fourth dispensing process used in the automatic dispensing method according to the first embodiment of the present application.

[0050] Figure 8 FIG. 15 is a cross-sectional structural view of a dispensing component used in the automatic dispensing method according to the second embodiment of the present application.

[0051] Figure 9Automatic dispensing device structure and first dispensing process schematic diagram for automatic dispensing method according to the second embodiment of the utility model.

[0052] Figure 10 Automatic dispensing device structure and second dispensing process schematic diagram for automatic dispensing method according to the second embodiment of the utility model.

[0053] Figure 11 Automatic dispensing device structure and third dispensing process schematic diagram for automatic dispensing method according to the second embodiment of the utility model.

[0054] Figure 12 Automatic dispensing device structure and fourth dispensing process schematic diagram for automatic dispensing method according to the second embodiment of the utility model.

[0055] Figure 13 Appearance structure schematic diagram of dispensing component for automatic dispensing method according to the second embodiment of the utility model.

[0056] Figure 14 Partial brief structure schematic diagram of automatic dispensing device for automatic dispensing method according to the third embodiment of the utility model.

[0057] Figure 15 Structure schematic diagram of dispensing component mentioned in the third embodiment of the utility model.

[0058] Figure 16 Partial brief structure schematic diagram of automatic dispensing device for automatic dispensing method according to the fourth embodiment of the utility model.

[0059] Figure 17 Partial brief structure schematic diagram of automatic dispensing device for automatic dispensing method according to the fifth embodiment of the utility model.

[0060] 10, automatic dispensing device; 11, dispensing component moving part; 12, component moving mechanism; 13, pressure generating component; 14, medicine bottle placing part; 101, moving platform; 102, closure clamp; 103, puncture moving mechanism; 104, needle cylinder clamp; 105, first piston rod clamp; 106, first piston rod moving mechanism; 107, second piston rod clamp; 108, second piston rod moving mechanism; 109, infusion bottle support; 110, moving rail; 111, medicine bottle clamp; 112, moving wheel disc; 113, chemotherapy pump; 20, dispenser; 201, liquid channel puncture needle; 202, gas channel puncture needle; 203, liquid cavity; 204, gas cavity; 21, first needle tube; 22, second needle tube; 23, first needle seat; 24, first injection cylinder; 25, first piston rod; 26, second injection cylinder; 27, second piston rod; 28, second needle seat; 29, first containing tube; 30, second containing tube; 31, liquid capsule; 32, gas capsule; 33, needle head closure; 34, stop valve; 40, medicine container; 41, infusion bottle; 42, medicine bottle; 50, gas distribution chamber; 60, chemotherapy pump. DETAILED DESCRIPTION

[0061] To better illustrate the purpose, technical scheme and advantages of the present application, the specific embodiments of the present application will be further described in detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but not as a limitation on the scope of the present application.

[0062] As shown in Figure 1 and Figure 2 , it is an automatic dispensing method for process sealing according to an embodiment of the present application, applied to control the automatic dispensing device 10 to realize the driving of the medicine between the dispensing component and the medicine container 40 by the automatic dispensing device 10.

[0063] Referring to Figure 2 , the automatic dispensing device 10 includes a device for driving the relative movement between the dispensing component and the medicine container 40, and a device for driving the flow of the medicine between the dispensing component and the medicine container 40.

[0064] Referring to Figure 2 , the dispensing component includes a dispenser 20 and a needle head closure 33. The dispenser 20 at least includes a liquid channel puncture needle 201, a gas channel puncture needle 202, a liquid cavity 203 and a gas cavity 204, the rear end of the liquid channel puncture needle 201 is communicated with the liquid cavity 203, and the rear end of the gas channel puncture needle 202 is communicated with the gas cavity 204. The liquid channel puncture needle 201 is used for puncturing into the inside of the medicine container 40 and for the flow of the liquid medicine, and the gas channel puncture needle 202 is used for puncturing into the inside of the medicine container 40 and for the flow of the gas (such as air). The needle head closure 33 is configured with a medical elastic material, which is used for wrapping the needle head of the liquid channel puncture needle 201 and the gas channel puncture needle 202.

[0065] Before the dispensing, the dispensing component and the drug container 40 can be clamped on the automatic dispensing device 10 manually. At this time, the needle seal 33 is clamped in a manner of wrapping the needle of the dispenser 20. It can be understood that as the automatic dispensing device 10 improves the automation function and the demand, the control program can also be preset, and the automatic dispensing device 10 can automatically grasp and assemble the dispensing component and the drug container 40.

[0066] Reference Figure 1 The process of the automatic dispensing method is to use the automatic dispensing device 10 to dispense, which at least includes the following steps:

[0067] S100, control the automatic dispensing device 10 to drive the needle seal 33 to abut on the bottle opening of the drug container 40;

[0068] S200, drive the dispenser 20 to move towards the drug container until the needle of the liquid passage puncture needle 201 and the gas passage puncture needle 202 pierce the needle seal 33 and the bottle opening of the drug container 40 and enter the inside of the drug container 40;

[0069] S300, drive the dispenser 20 to extract the liquid medicine from the drug container 40, or drive the dispenser 20 to inject the liquid medicine into the drug container 40;

[0070] S400, drive the dispenser 20 to move away from the drug container 40 until the liquid passage puncture needle 201 and the gas passage puncture needle 202 are sequentially pulled out from the inside of the drug container 40 and the bottle opening of the drug container 40 and are sealed in the needle seal 33 again.

[0071] In the above dispensing method, when the dispenser 20 is separated from the drug container 40, the needle seal 33 wraps the needle of the dispenser 20. When the needle of the dispenser 20 pierces into the inside of the drug container 40, the needle seal 33 is pushed into the rear part of the needle tube, so as to expose the needle of the needle tube for piercing into the inside of the drug container 40. During the dispensing process, the needle has no contact with the outside world, which effectively avoids the leakage of the liquid medicine.

[0072] The step S300 is a pipetting step, which specifically includes:

[0073] S301, the automatic dispensing device 10 controls the inside of the liquid cavity 203 to form a negative pressure, and / or the automatic dispensing device 10 controls the inside of the gas cavity 204 to form a positive pressure, until the liquid medicine flows from the drug container 40 into the liquid cavity 203 through the liquid passage puncture needle 201, and the air in the gas cavity 204 flows into the drug container 40 through the gas passage puncture needle 202.

[0074] Step S302, the automatic dispensing device 10 controls the formation of positive pressure inside the liquid cavity 203, and / or the automatic dispensing device 10 controls the formation of negative pressure inside the gas cavity 204, until the liquid from the liquid cavity 203 flows into the medicine container 40 through the liquid channel puncture needle 201, and the rich gas in the medicine container 40 flows into the gas cavity 204 through the gas channel puncture needle 202.

[0075] It is worth noting that in steps S301 and S302, when the liquid channel puncture needle 201 and the gas channel puncture needle 202 pierce into the inside of the medicine container, the liquid cavity 203, the liquid channel puncture needle 201, the medicine container 40, the gas channel puncture needle 202, and the gas cavity 204 are sequentially communicated. When the liquid cavity 203 is actively driven to form positive pressure or negative pressure, the gas cavity 204 will automatically suck in gas or automatically supplement gas to the medicine container under the action of air pressure balance. Similarly, when the gas cavity 204 is actively driven to form positive pressure or negative pressure, the liquid cavity 203 will automatically suck in liquid or automatically inject liquid into the medicine container under the action of air pressure balance.

[0076] First specific embodiment

[0077] The first specific embodiment is a specific application of an automatic dispensing method according to a process closed.

[0078] As shown in Figure 3 , it is a dispensing component used in the automatic dispensing process of the first specific embodiment. The dispensing component is composed of a first needle tube 21, a second needle tube 22, a first needle seat 23, a first syringe 24, a first piston rod 25, a second syringe 26, and a second piston rod 27. Specifically, the rear end of the second needle tube 22 is communicated with the inner cavity of the second syringe 26 through the first needle seat 23, the first needle tube 21 is sleeved outside the second needle tube 22, and the cavity between the inner wall of the first needle tube 21 and the outer wall of the second needle tube 22 is communicated with the inner cavity of the first syringe 24.

[0079] It can be understood that the cavity between the inner wall of the first needle tube 21 and the outer wall of the second needle tube 22 serves as a liquid channel, and the inner cavity of the second needle tube 22 serves as a gas channel. The first piston rod 25 is slidably arranged in the inner cavity of the first syringe 24, and the first piston rod 25 and the first syringe 24 cooperate to form a liquid cavity 203 that forms a pressure difference through volume change. The second piston rod 27 is slidably arranged in the inner cavity of the second syringe 26, and the second piston rod 27 and the second syringe 26 cooperate to form a gas cavity 204 that forms a pressure difference through volume change.

[0080] It is worth noting that in the first specific embodiment, the side wall of the first syringe 24 and the side wall of the second syringe 26 are connected to each other, so that the axial direction of the first syringe 24 and the axial direction of the second syringe 26 are fixed parallel to each other. The axial direction of the first needle tube 21 and the axial direction of the second needle tube 22 are in the same extension direction, so that they can be pierced into the medicine container together.

[0081] As Figures 4 to 7 shown in FIG. 1, is a schematic diagram of the structure of an automatic dispensing device and the dispensing process used in the automatic dispensing method of the first embodiment. The automatic dispensing device 10 comprises a dispensing component moving part 11, a component moving mechanism 12, a pressure generating component 13 and a medicine bottle placing part 14.

[0082] Specifically, the dispensing component moving part 11 comprises a moving platform 101. The moving platform 101 is used to drive the dispenser 20 and the needle closure 33 to move and rotate between the lateral X-axis and the longitudinal Y-axis, so that the dispensing component can be moved to a set position and adjusted to a specific posture relative to the medicine container.

[0083] The dispensing component moving part 11 comprises a puncture moving mechanism 103, which is arranged on the moving platform 101 and can move linearly along a set track on the moving platform 101. A needle cylinder clamp 104 is fixedly arranged on the puncture moving mechanism 103 and used to clamp the first syringe 24 and the second syringe 26.

[0084] The component moving mechanism 12 is movably arranged on the dispensing component moving part 11 and comprises a closure clamp 102, which is used to clamp the needle closure 33.

[0085] The pressure generating component 13 is arranged on the puncture moving mechanism 103. The pressure generating component 13 comprises a first piston rod clamp 105, a first piston rod moving mechanism 106, a second piston rod clamp 107 and a second piston rod moving mechanism 108. The first piston rod clamp 105 is used to clamp the first piston rod 25. The first piston rod moving mechanism 106 is used to drive the first piston rod 25 to displace in the axial linear direction relative to the first syringe 24. The second piston rod clamp 107 is used to clamp the second piston rod 27. The second piston rod moving mechanism 108 is used to drive the second piston rod 27 to displace in the axial linear direction relative to the second syringe 26.

[0086] Specifically, the medicine bottle placing part 14 comprises an infusion bottle support 109 and a medicine bottle clamp 111. The infusion bottle support 109 is used to clamp the infusion bottle 41 or other larger containers, and the medicine bottle clamp 111 is used to clamp the medicine bottle 42 (such as a vial). In order to adapt to the dispensing of various medicines, the medicine bottle clamp 111 is provided in multiple and arranged in the circumferential direction on the moving wheel disc 112. In order to adapt the position of the moving platform 101 and the infusion bottle 41, the infusion bottle support 109 is arranged on the moving track 110, and the infusion bottle support 109 can be adjusted in the circumferential direction.

[0087] An illustrative dispensing example is to extract the solvent agent from the infusion bottle 41, inject it into the medicine bottle 42 to mix with the medicine powder, and then extract the mixed medicine liquid from the medicine bottle 42. Figures 4 to 7The automatic dispensing method according to the present embodiment is demonstrated by the dispensing process performed by the automatic dispensing apparatus 10 described above. In the pre-step, the medicine bottle 42 is installed to the medicine bottle clamp 111, the infusion bottle 41 is installed to the infusion bottle holder 109, the integrated first syringe 24 and second syringe 26 are installed to the needle cylinder clamp 104, and the needle seal 33 is fixed to the seal clamp 102. In the installed state of the dispensing components, the needle seal 33 wraps the needles of the first needle cylinder 21 and second needle cylinder 22 of the dispenser 20. Meanwhile, the first piston rod 25 is connected to the first piston rod clamp 105, and the second piston rod 27 is connected to the second piston rod clamp 107.

[0088] The automatic dispensing method of the present embodiment comprises the following steps:

[0089] (1) The moving platform 101 is controlled to move, bringing the dispenser 20 and the needle seal 33 to move together, so that the needle seal 33 abuts against the bottle mouth of the infusion bottle 41. That is, step S100 is performed.

[0090] (2) The puncture moving mechanism 103 is controlled to move, bringing the dispenser 20 to move in the direction of axially penetrating the needle seal 33, until the first needle cylinder 21 and second needle cylinder 22 pierce the needle seal 33 and the bottle mouth of the infusion bottle 41 and enter the inside of the infusion bottle 41. That is, step S200 is performed.

[0091] (3) The first piston rod moving mechanism 106 is controlled to bring the first piston rod 25 to move axially backward, and the second piston rod moving mechanism 108 is controlled to bring the second piston rod 27 to move axially forward. As the first piston rod 25 moves backward, the inner cavity of the first syringe 24 will be stretched to form a negative pressure, so that the solvent in the infusion bottle 41 is drawn into the first syringe 24 through the first needle cylinder 21 and first needle seat 23. Meanwhile, as the second piston rod 27 moves forward, the inner cavity of the second syringe 26 will be compressed to form a positive pressure, so that the air in the second syringe 26 is supplemented into the infusion bottle 41 through the first needle seat 23 and second needle cylinder 22. That is, step S301 is performed, the medicine liquid in the infusion bottle 41 is drawn into the first syringe 24, while the infusion bottle 41 has the air from the second syringe 26 supplemented, the air pressure in the infusion bottle 41 is balanced, and the medicine will not leak from the bottle mouth of the infusion bottle 41 due to the unbalanced air pressure.

[0092] (4) The puncture moving mechanism 103 is controlled to move, bringing the dispenser 20 to move in the direction of axially away from the infusion bottle 41, until the needles of the first needle cylinder 21 and second needle cylinder 22 exit the bottle mouth of the infusion bottle 41 and retreat to the inside of the needle seal 33. That is, step S400 is performed.

[0093] (5) The mobile platform 101 is controlled to move, bringing the dispenser 20 and the needle seal 33 to move together, so that the needle seal 33 abuts against the bottle mouth of the medicine bottle 42. That is, step S100 is executed again.

[0094] (6) The puncture moving mechanism 103 is controlled to move, bringing the dispenser 20 to move in the direction of penetrating the needle seal 33 along the axial direction, until the first needle tube 21 and the second needle tube 22 penetrate the needle seal 33 and the bottle mouth of the medicine bottle 42 and enter the inside of the medicine bottle 42. That is, step S200 is executed.

[0095] (7) The first piston rod moving mechanism 106 is controlled to bring the first piston rod 25 to move forward along the axial direction, and the second piston rod moving mechanism 108 is controlled to bring the second piston rod 27 to move backward along the axial direction. With the first piston rod 25 moving forward, the inner cavity of the first syringe 24 is compressed to form a positive pressure, so that the solvent in the first syringe 24 is injected into the medicine bottle 42 through the first needle seat 23 and the first needle tube 21. At the same time, with the second piston rod 27 moving backward, the inner cavity of the second syringe 26 is stretched to form a negative pressure, so that the air in the medicine bottle 42 is discharged into the inner cavity of the second syringe 26 through the second needle tube 22 and the first needle seat 23. That is, step S302 is executed, and the solvent in the first syringe 24 enters the medicine bottle 42 to mix with the medicine in the medicine bottle 42. During the injection process, the liquid in the medicine bottle 42 increases, and the air is discharged into the second syringe 26.

[0096] Then, referring to steps (3) to (7) above, the mixed liquid is extracted from the medicine bottle 42 and injected into the infusion bottle 41. The infusion bottle 41 is completed by the medical staff to take out, and the used dispensing components and the medicine container 40 are taken out from the automatic dispensing device 10 and safely disposed of.

[0097] Second Specific Embodiment

[0098] As shown in FIG. 2, it is a dispensing component used in the automatic dispensing process of the second specific embodiment, including a dispenser and a needle seal 33. Figure 7

[0099] The dispenser includes a first needle tube 21, a second needle tube 22, a first needle seat 23, a first syringe 24, a first piston rod 25, a second syringe 26, a second piston rod 27, and a second needle seat 28.

[0100] The first needle tube 21 and the second needle tube 22 form a double-layer cylindrical structure, the outer channel of which is a liquid channel, and the inner channel is an air channel. The rear ends of the first needle tube 21 and the second needle tube 22 are fixed to the front end of the first needle seat 23.

[0101] ​The first needle holder 23 has an internal first channel and a second channel that are independent of each other. A protrusion is radially arranged on the side near the second channel, and an air vent with a sealing plug is located at the end of the protrusion. The end of the first needle holder 23 has a cavity for connecting and fixing to a connector on the first syringe 24. The end of the first channel communicates with the cavity, and the end of the second channel communicates with the air vent. A rotatable check valve 34 is provided in the second channel to control its opening or closing.

[0102] The front end of the second syringe 26 is provided with a second needle seat 28 and a puncture needle fixedly connected to the second needle seat 28. As shown in the figure, the first syringe 24 and the second syringe 26 are in a fixed connection state. The puncture needle pierces the sealing plug in the air window of the first needle seat 23 and communicates with the second channel in the first needle seat 23.

[0103] The rear end of the first needle holder 23 is fixedly connected to the connector at the front end of the first syringe via a cavity. The liquid channel in the double-layer columnar structure is connected to the first syringe 24 via a first channel, and the gas channel is connected to the second syringe 26 via a second channel (when the check valve 34 is in the through state).

[0104] like Figure 7 As shown, the needle sealing member 33 has a sleeve device fitted over the first needle seat 23. The sleeve device has a groove inside, and the first needle seat 23 has a rib on the outside that mates with the groove. The rib and groove allow the sleeve device to slide axially on the first needle seat 23 and restrict relative rotation. A sealing device is provided inside the top of the sleeve for the first needle tube 21 and the second needle tube 22 to pass through. An elastic device is provided between the sealing device and the top of the first needle seat 23. In the initial state, the elastic device provides support for the sealing device, causing the sealing device to wrap around the needle tips of the first needle tube 21 and the second needle tube 22 to seal them. Under pressure, the elastic device compresses, causing the needle tips to pass through the sealing device.

[0105] like Figure 8 As shown, the automatic dispensing device 10 in this embodiment also includes a gas mixing chamber 50. The gas mixing chamber 50 is a cavity inside, with a sealing adhesive at one end and a one-way valve and a filter membrane at the other end. The one-way valve only allows air to flow unidirectionally from the outside to the cavity inside the gas mixing chamber 50.

[0106] The automatic drug dispensing method of this embodiment can be used to control the automatic drug dispensing equipment 10 to prepare anti-tumor drugs. Figures 9 to 12The automatic dispensing process according to the present embodiment is shown. First, the dispenser 20 draws a first preset dose of solvent from the infusion bottle 41, injects the solvent into the medicine bottle 42, mixes the solvent with the medicine in the medicine bottle 42, draws the mixed medicine from the medicine bottle 42, and injects the mixed medicine into the chemotherapy pump 60, and repeats the above process several times until the chemotherapy pump 60 is filled with enough medicine. Finally, the dispenser 20 draws a second preset dose of solvent from the infusion bottle 41, injects the solvent into the medicine bottle 42, mixes the solvent with the medicine in the medicine bottle 42, draws the mixed medicine from the medicine bottle 42, and retains the mixed medicine in the dispenser 20. When the medicine is used, the prepared medicine in the dispenser 20 is first injected into a patient, and then the prepared medicine in the chemotherapy pump 60 is slowly injected into the patient.

[0107] In the pre-step, the air chamber 50 and the plurality of medicine bottles 42 are installed on the medicine bottle clamp 111, the infusion bottle 41 is installed in the infusion bottle support 109, the chemotherapy pump 60 is installed on the chemotherapy pump support 113, the integrated first syringe 24 and second syringe 26 are installed on the needle cylinder clamp 104, the needle seal 33 is fixed on the seal clamp 102. At the same time, the first piston rod 25 is connected to the first piston rod clamp 105, and the second piston rod 27 is connected to the second piston rod clamp 107. In the installed state of the dispensing components, the needle seal 33 wraps the needles of the first needle cylinder 21 and the second needle cylinder 22 of the dispenser 20.

[0108] The automatic dispensing method of the present embodiment includes the following steps:

[0109] (1) The non-return valve 34 is controlled to be open. The mobile platform 101 is controlled to move, and the dispenser 20 and the needle seal 33 are moved together, so that the needle seal 33 abuts against the bottle mouth seal of the air chamber 50. The puncture moving mechanism 103 is controlled to move, and the dispenser 20 is moved in the direction of penetrating the needle seal 33 along the axial direction, until the first needle cylinder 21 and the second needle cylinder 22 penetrate the seal of the needle seal 33 and the air chamber 50 and enter the inside of the air chamber 50. The second piston rod moving mechanism 108 is controlled to act, and the second piston rod 27 is moved backward, so that the second syringe 26 draws air from the air chamber 50. Then the dispenser 20 is pulled out of the air chamber 50, until the needles of the first needle cylinder 21 and the second needle cylinder 22 are withdrawn into the inside of the needle seal 33.

[0110] (2) The mobile platform 101 is controlled to move, bringing the dispenser 20 and the needle seal 33 to move together, so that the needle seal 33 abuts against the bottle mouth of the infusion bottle 41. The puncture moving mechanism 103 is controlled to move, bringing the dispenser 20 to move in the direction of axially penetrating the needle seal 33, until the first needle tube 21 and the second needle tube 22 penetrate the needle seal 33 and the bottle mouth of the infusion bottle 41 and enter the inside of the infusion bottle 41. The first piston rod moving mechanism 106 is controlled to move the first piston rod 25 in the direction of axially moving backward, and the second piston rod moving mechanism 108 is controlled to move the second piston rod 27 in the direction of axially moving forward, so that the first pre-set dose of solvent is drawn into the first syringe 24, while the air in the second syringe 26 is supplemented into the infusion bottle 41. The puncture moving mechanism 103 is controlled to move, bringing the dispenser 20 to move in the direction of axially moving away from the infusion bottle 41, until the needle of the first needle tube 21 and the second needle tube 22 withdraws from the bottle mouth of the infusion bottle 41 and retreats into the inside of the needle seal 33. That is, steps S100, S200, S301 and S400 are sequentially executed, so that the solvent is drawn from the infusion bottle 41, and in the process, the needle of the first needle tube 21 and the second needle tube 22 is not in contact with the outside, and the air pressure in the infusion bottle 41 is kept balanced.

[0111] (3) Control the movement of the moving wheel 112 to replace the air distribution chamber 50, and move the medicine bottle 42 to the corresponding working position. Control the movement of the moving platform 101 to move the medicine dispenser 20 and the needle sealing member 33 together, so that the needle sealing member 33 abuts against the bottle opening of the medicine bottle 42. Control the movement of the puncture moving mechanism 103 to move the medicine dispenser 20 in the direction of axially penetrating the needle sealing member 33, until the first needle tube 21 and the second needle tube 22 penetrate the needle sealing member 33 and the bottle opening of the medicine bottle 42 and enter the inside of the medicine bottle 42. Control the first piston rod moving mechanism 106 to move the first piston rod 25 in the axial direction forward, and control the second piston rod moving mechanism 108 to move the second piston rod 27 in the axial direction backward. With the forward movement of the first piston rod 25, the inner cavity of the first syringe 24 will be compressed to form a positive pressure, so that the solvent agent in the first syringe 24 is injected into the medicine bottle 42 through the first needle seat 23 and the first needle tube 21. At the same time, with the backward movement of the second piston rod 27, the inner cavity of the second syringe 26 will be stretched to form a negative pressure, so that the air in the medicine bottle 42 is discharged into the inner cavity of the second syringe 26 through the second needle tube 22 and the first needle seat 23. The solvent agent in the first syringe 24 enters the medicine bottle 42 and mixes with the medicine in the medicine bottle 42. During the injection process, the liquid medicine in the medicine bottle 42 increases, and the excess air is discharged into the second syringe 26. After the solvent agent and the medicine are fully mixed to form mixed liquid medicine, control the first piston rod moving mechanism 106 to move the first piston rod 25 in the axial direction backward, and control the second piston rod moving mechanism 108 to move the second piston rod 27 in the axial direction forward, so that the mixed liquid medicine in the medicine bottle 42 is extracted into the first syringe 24, and the air in the second syringe 26 is supplemented into the medicine bottle. Then, control the movement of the puncture moving mechanism 103 to move the medicine dispenser 20 in the direction of axially away from the medicine bottle 42, until the needle of the first needle tube 21 and the second needle tube 22 withdraws from the bottle opening of the medicine bottle 42 and retreats to the inside of the needle sealing member 33. That is, steps S100, S200, S302, S301 and S400 are performed, and the injection of the solvent agent into the medicine bottle 42 and the extraction of the mixed liquid medicine from the medicine bottle 42 are realized. During the process, the needles of the first needle tube 21 and the second needle tube 22 are not in contact with the outside world, and the air pressure in the medicine bottle 42 remains balanced.

[0112] (4) Control the stop valve 34 to close. Control the moving platform 101 to move, causing the drug preparation device 20 and the needle sealing element 33 to move together, so that the needle sealing element 33 abuts against the connector of the chemotherapy pump 60. Control the puncture moving mechanism 103 to move, causing the drug preparation device 20 to move axially out of the needle sealing element 33, until the first needle tube 21 and the second needle tube 22 pierce the connector of the needle sealing element 33 and the chemotherapy pump 60 and enter the connector of the chemotherapy pump 60. Control the first piston rod moving mechanism 106 to move the first piston rod 25 axially forward, until the mixed drug solution is completely injected from the first syringe 24 into the chemotherapy pump 60. Control the puncture moving mechanism 103 to move, causing the drug preparation device 20 to move axially away from the chemotherapy pump 60, until the needles of the first needle tube 21 and the second needle tube 22 withdraw from the connector of the chemotherapy pump 60 and return to the inside of the needle sealing element 33. This is equivalent to executing steps S100, S200, S302, and S400, thereby injecting the mixed drug solution into the chemotherapy pump 60. During this process, it is preferable to close the check valve 34 to prevent chemotherapy drugs from entering the drug preparation unit and to minimize potential impacts on subsequent environments or operations.

[0113] Repeat steps (1) to (4) of this embodiment until the drug dose in the chemotherapy pump 60 reaches the target.

[0114] (5) Referring to steps (1) to (3) of this embodiment, by using a second preset dose of solvent, mixed drug solutions of different concentrations are prepared and drawn into the first syringe 24. The chemotherapy pump 60 is then not injected further, and the stop valve 34 is closed.

[0115] like Figure 13 As shown, the dispensing unit 20 is removed from the automated dispensing device 10, and the second syringe 26 is detached from the dispensing unit 20 and safely disposed of. The remaining portion with the mixed medication (part shown on the left) will be used for the patient's treatment. The chemotherapy pump 60 is removed from the automated dispensing device 10 and will be used for the patient's treatment. The used infusion bottle 41, medication bottle 42, and gas mixing chamber 50 in the automated dispensing device 10 will be removed and safely disposed of.

[0116] Third specific embodiment

[0117] In a third specific embodiment, the dispensing device 20 of the dispensing component is a single-liquid dispensing device. The dispensing component includes the dispensing device 20 and a needle sealing element 33. The dispensing device 20 consists of a first needle tube 21, a first needle seat 23, a first syringe 24, and a first piston rod 25.

[0118] like Figure 14 As shown, the automatic dispensing equipment 10 also includes a dispensing component moving part 11, a component moving mechanism 12, a pressure generating part 13, and a medicine bottle placing part 14.

[0119] Illustratively, the dispensing example is to extract the liquid medicine in the medicine bottle 42. The automatic dispensing method of the present embodiment includes the following steps:

[0120] (1) The dispensing component moving part 11 is controlled to move, driving the dispensing device 20 and the needle sealing member 33 to move together, so that the needle sealing member 33 abuts against the bottle opening of the medicine bottle 42. That is, S100 is executed.

[0121] (2) The component moving mechanism 12 fixes the needle sealing member. The dispensing component moving part 11 is controlled to move, driving the dispensing device 20 to move in the direction of penetrating the needle sealing member 33 along the axial direction, until the first needle tube 21 penetrates the needle sealing member 33 and the bottle opening of the medicine bottle 42 and enters the inside of the medicine bottle 42. That is, S200 is executed.

[0122] (3) The pressure generating component 13 is controlled to act, the first piston rod 25 moves backward, so that a negative pressure is formed in the inside of the first syringe 24, to make the liquid medicine in the medicine bottle 42 flow into the first syringe 24 through the first needle tube 21. That is, S301 is executed.

[0123] (4) The dispensing component moving part 11 is controlled to move, driving the dispensing device 20 to move in the direction of moving away from the medicine bottle 42 along the axial direction, until the needle head of the first needle tube 21 exits the bottle opening of the medicine bottle 42 and retreats to the inside of the needle sealing member 33. That is, S400 is executed.

[0124] In the dispensing process of the present embodiment, the first needle tube 21 does not contact with the outside, avoiding the leakage of the liquid medicine. However, it is worth mentioning that the air pressure is not balanced during the extraction of the liquid medicine, and the extraction action is difficult to perform. In view of this, the dispensing component can be improved as shown in Figure 15 . Figure 15 The dispensing component shown in the figure includes the dispensing device 20 and the needle sealing member 33. The dispensing device 20 includes the first needle tube 21, the second needle tube 22, the first needle seat 23, the first syringe 24, the first piston rod 25 and the air bag 32. The first needle seat 23 is provided with two independent channels, the first needle tube 21 is connected to the first syringe 24 through the first channel, the second needle tube 22 is connected to the air bag 32 through the second channel, and the second channel is provided with a stop valve 34 for controlling the penetration or isolation of the second channel.

[0125] Fourth specific embodiment

[0126] As shown in Figure 16As shown, in the fourth specific embodiment, the drug dispensing component includes a drug dispenser 20 and a needle sealing element 33. The drug dispenser 20 has a drug dispensing assembly and a pressure balancing assembly. The drug dispensing assembly is a first syringe, and the pressure balancing assembly is a second syringe; both have the same structure but are independent of each other. The needle sealing element 33 includes a first sealing element and a second sealing element. In the initial state, the first sealing element is disposed at the front end of the needle tube of the first syringe in a manner that wraps and seals the needle opening, and the second sealing element is disposed at the front end of the needle tube of the second syringe in a manner that wraps and seals the needle opening.

[0127] Fifth Specific Embodiment

[0128] like Figure 17 As shown, in the fifth specific embodiment, the drug dispensing component includes a drug dispensing device 20 and a needle sealing component 33. The drug dispensing device 20 consists of a first needle tube 21, a second needle tube 22, a first receiving tube 29, a second receiving tube 30, a liquid bladder 31 (i.e., a liquid storage chamber), and an air bladder 32.

[0129] When the automatic dispensing equipment 10 containing the above-mentioned dispensing components is used to prepare the medicine solution, the pressure generating component 13 adopts a peristaltic pump, which drives the pressure in the pipeline of the receiving tube to generate pressure.

[0130] The above embodiments mainly describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automated dispensing apparatus comprising a dispensing component, characterized by: The dispensing component comprises a dispenser; the dispenser has a dispensing assembly and a gas pressure balance assembly, the dispensing assembly is configured with a liquid channel puncture needle, and a liquid cavity connected to the rear end of the liquid channel puncture needle; the gas pressure balance assembly is configured with a gas channel puncture needle, and a gas cavity connected to the rear end of the gas channel puncture needle.

2. The automated dispensing apparatus of claim 1, wherein: The dispensing component further comprises a needle sealing member; the needle sealing member is used to seal the needle of the liquid channel puncture needle in the dispensing assembly, or is used to simultaneously seal the needles of the liquid channel puncture needle in the dispensing assembly and the gas channel puncture needle in the gas pressure balance assembly.

3. The automated dispensing apparatus of claim 2, wherein: The dispensing assembly and the gas pressure balance assembly are independent of each other.

4. The automated dispensing apparatus of claim 3, wherein: The dispensing assembly is a first syringe, the gas pressure balance assembly is a second syringe; the needle sealing member comprises a first sealing member and a second sealing member; in the initial state, the first sealing member is arranged at the front end of the needle tube of the first syringe in a manner of wrapping and sealing the needle port, and the second sealing member is arranged at the front end of the needle tube of the second syringe in a manner of wrapping and sealing the needle port.

5. The automated dispensing apparatus of claim 4, wherein: The liquid channel puncture needle and the gas channel puncture needle are respectively connected to the first syringe barrel and the second syringe barrel; the first piston rod is slidably arranged in the inner cavity of the first syringe barrel, and the first piston rod and the first syringe barrel cooperate to form a liquid cavity that forms a pressure difference through volume change; The second piston rod is slidably arranged in the inner cavity of the second syringe barrel, and the second piston rod and the second syringe barrel cooperate to form a gas cavity that forms a pressure difference through volume change.

6. The automatic dosing device according to claim 3, characterized in that: The liquid channel puncture needle is a first needle tube, the gas channel puncture needle is a second needle tube, the rear end of the first needle tube is connected to the front end of the first accommodating tube, the rear end of the first accommodating tube is connected to the liquid storage cavity, the rear end of the second needle tube is connected to the front end of the second accommodating tube, and the rear end of the second accommodating tube is connected to the air bag; the liquid storage cavity and the air bag are respectively the liquid cavity and the gas cavity, and the first accommodating tube and the second accommodating tube are connecting members.

7. The automated dispensing apparatus of claim 1 or 2, wherein: The dispensing assembly and the gas pressure balance assembly are integrated.

8. The automated dispensing apparatus of claim 7, wherein: The dispenser comprises a first needle tube, a second needle tube, a first needle seat, a first syringe barrel and a second syringe barrel; the rear ends of the first needle tube and the second needle tube are fixed to the front end of the first needle seat, the rear end of the first needle seat is fixedly connected with the front ends of the first syringe barrel and the second syringe barrel, two independent channels are arranged in the first needle seat, the first needle tube is connected to the first syringe barrel through the first channel, and the second needle tube is connected to the second syringe barrel through the second channel; the first needle tube and the first syringe barrel connected through the needle seat constitute the dispensing assembly, and the first needle tube is the liquid channel puncture needle; the second needle tube and the second syringe barrel connected through the needle seat constitute the gas pressure balance assembly, and the second needle tube is the gas channel puncture needle.

9. The automatic dosing device according to claim 8, characterized in that: The liquid channel puncture needle and the gas channel puncture needle are double-layer columnar structures, the outer channel of the double-layer columnar structure is a liquid channel, and the inner channel of the double-layer columnar structure is a gas channel; or the liquid channel puncture needle and the gas channel puncture needle are arranged in a side-by-side double-needle structure.

10. The automated dispensing apparatus of claim 8, wherein: The first syringe barrel and the second syringe barrel are fixedly connected and detachable.

11. The automatic dosing device according to claim 10, characterized in that: The first needle seat is internally provided with a first channel and a second channel, is provided with an air window on the side surface, and is provided with a cavity at the end for connecting and fixing the connector on the first syringe; the end of the first channel is in communication with the cavity, and the end of the second channel is in communication with the air window; a sealing plug is arranged in the air window; the front end of the second syringe is provided with a second needle seat and a puncture needle fixedly connected to the second needle seat; in the fixed connection state of the first syringe and the second syringe, the puncture needle at the front end of the second syringe penetrates the sealing plug in the air window of the first needle seat, and is in communication with the second channel in the first needle seat; when the first syringe and the second syringe are separated, the sealing plug in the air window makes the air window in a sealed state.

12. The automated dispensing apparatus of claim 10, wherein: A through-stop module for controlling the through or block of the second channel is arranged in the second channel of the first needle seat, so as to further ensure the sealing of the second channel relative to the outside.

13. The automated dispensing device of claim 12, wherein: The through-stop module is a rotatable stop valve, and a through hole is arranged in the valve; the stop valve is rotated to align or misalign the through hole with the second channel, so that the through or block of the two channels can be conveniently realized.

14. The automated dispensing device of claim 10, wherein: A protruding portion is arranged on the side of the first needle seat close to the second channel in a radial direction, and the air window is arranged at the end of the protruding portion.

15. The automated dispensing apparatus of claim 1 or 2, wherein: The automatic dispensing device comprises a pressure generating component.

16. The automatic dosing device according to claim 5, characterized in that: The automatic dispensing device comprises a pressure generating component; the pressure generating component generates pressure changes in the liquid container cavity and / or the gas container cavity by controlling the advance and retreat of the piston rod in the syringe.

17. The automatic dosing device according to claim 6, characterized in that: The automatic dispensing device comprises a pressure generating component; the pressure generating component is a peristaltic pump, which generates pressure in the pipeline of the containing pipe by driving.

18. The automatic dosing device according to claim 8, characterized in that: The needle head sealing member has a sleeve device sleeved on the outside of the syringe or the first needle seat, the inside of the sleeve device has a sliding groove, the outside of the syringe or the needle seat has a protruding rib matched with the sliding groove, and the protruding rib and the sliding groove enable the sleeve device to slide axially on the syringe or the needle seat and limit relative rotation; a sealing device for the liquid channel puncture needle and / or the gas channel puncture needle to pass through is arranged in the top of the sleeve, and an elastic device is arranged between the sealing device and the top of the needle seat; in the initial state, the elastic device supports the sealing device, so that the sealing device wraps the needle head of the liquid channel puncture needle and / or the gas channel puncture needle to seal it, and in the pressure state, the elastic device is compressed to enable the needle head to pass through the sealing device.

19. The automated dispensing apparatus of claim 1 or 2, wherein: The automatic dispensing device further comprises a dispensing component moving component, a pressure generating component, and a medicine bottle placing component; wherein, The dispensing component moving component comprises a moving platform and a needle cylinder clamp arranged on the moving platform; The pressure generating component is arranged on the moving platform; The medicine bottle placing component comprises a medicine bottle clamp for clamping a medicine bottle; the medicine bottle clamp is provided with a plurality of medicine bottle clamps and is assembled in a circumferential direction on a moving wheel disc; the moving wheel disc is rotatably arranged, and the opening part of the medicine bottle clamp is arranged in the axial direction of the moving wheel disc; a bottle hanging mechanical hand and a bottle taking mechanical hand are arranged on the opposite sides of the moving wheel disc, and the two can automatically hang or take away the medicine bottle into or from the medicine bottle clamp; the moving wheel disc is provided with a working position corresponding to the moving platform.

20. The automated dispensing apparatus of claim 19, wherein: The working position is arranged between the bottle hanging mechanical hand and the bottle taking mechanical hand.

21. The automatic dosing device according to claim 19, characterized in that: The dispensing component moving part comprises a puncture moving mechanism arranged on the moving platform and movable along a set track on the moving platform; and a needle cylinder clamp fixedly arranged on the puncture moving mechanism.

22. The automatic dosing device according to claim 21, characterized in that: The pressure generating component is arranged on the puncture moving mechanism.

23. The automatic dosing device according to claim 19, characterized in that: The bottle hanging and picking mechanical hands are provided with scanning devices; the scanning devices scan information labels on the medicine bottles to obtain medicine information for operation; the medicine bottle clamps have corresponding information labels; when the medicine bottles are hung, the scanning devices of the bottle hanging mechanical hands scan the medicine bottles and the information labels on the corresponding medicine bottle clamps and associate the two; when the medicine bottles are picked, the scanning devices of the bottle picking mechanical hands scan the medicine bottles and the information labels on the corresponding medicine bottle clamps, and if the information is inconsistent with the associated information, an alarm is given, and if the information is consistent, the associated information is released and the medicine bottles are taken off.

24. The automatic dosing device according to claim 23, characterized in that: The moving platform is provided with a second scanning device, which scans the information labels on the medicine bottles and the corresponding medicine bottle clamps, and if the information is inconsistent with the associated information, an alarm is given, and if the information is consistent, dispensing work is performed.

25. The automatic dosing device according to claim 19, characterized in that: The automatic dispensing equipment can further comprise a component moving mechanism for clamping and fixing a needle sealing member, which is movably arranged on the dispensing component moving part.

26. The automatic dosing device according to claim 19, characterized in that: The automatic dispensing equipment is provided with a self-checking program, the bottle hanging mechanical hand grasps medicine according to a set program at a specified position, the scanning device of the bottle hanging mechanical hand scans medicine information before grasping and compares it with medicine list information previously input into the system, if the information is inconsistent, an alarm is given, and if the information is consistent, the dispensing process is continued.

27. The automatic dosing device according to claim 26, characterized in that: The automatic dispensing equipment is connected with a prescription system of a hospital to automatically obtain dispensing information issued by a doctor for use in the self-checking program.

28. The automatic dosing device according to claim 1 or 2, characterized in that: The automatic dispensing equipment comprises a disinfection device, which can disinfect specified components and / or positions in the automatic dispensing equipment according to a set program.

29. The automatic dosing device according to claim 28, characterized in that: The disinfection is performed by spraying disinfectant or irradiating ultraviolet rays.

30. The automatic dosing device according to claim 1 or 2, characterized in that: The automatic dispensing equipment has a self-cleaning device and a drying device, which can operate a self-cleaning mode to clean and dry the automatic dispensing equipment as needed between two dispensing operations.

Images