Process closed type automatic medicine dispensing equipment and method

Abstract

The invention discloses process closed type automatic medicine dispensing equipment and method, and belongs to the field of process closed type automatic medicine dispensing control. According to the automatic medicine dispensing device, medicine dispensing automation is achieved, the whole-process leakproofness is good, direct or indirect contact in the medicine dispensing process is avoided, the medicine leakage risk is lowered, meanwhile, the labor intensity of operators is lowered, and the overall accuracy of medicine dispensing is improved.

Description

Technical Field

[0001] The invention relates to the field of process-enclosed automatic dispensing control, and in particular to a process-enclosed automatic dispensing device and method. Background Art

[0002] In clinical practice, the liquid medicine injected into the patient's body is mostly a mixture of multiple liquid medicines. Existing drug dispensing is generally done manually, with high labor costs and high labor intensity. Mistakes may occur during dispensing, which threatens the safety of intravenous medication for patients. Automatic dispensing equipment can solve this problem. It can automatically complete the dissolution and dilution of drugs, freeing medical staff from this tedious work. At the same time, the use of this device can improve the efficiency of dispensing and reduce the risk of drug contamination during repeated operations.

[0003] On the other hand, dangerous drugs represented by chemotherapy drugs are extremely harmful to the health of medical staff who have been engaged in the preparation and transportation of such drugs for a long time. Some medical institutions have built various clean rooms, biological cabinets and other facilities to reduce the risk of drug leakage. The investment is huge, but the actual promotion and application effect is not good. In the prior art, some places use automatic dispensing equipment, but the current automatic dispensing equipment still has problems of drug leakage or drug contamination during frequent operation, which in turn harms the health of medical staff or patients. For example, due to the imbalance of air pressure inside and outside the drug container during the preparation process, the drug leaks from the puncture hole of the bottle mouth, or air is sucked in through the puncture hole of the bottle mouth, causing the drug to be contaminated. For example, after the syringe is pulled out, the drug in the syringe overflows or leaks through the needle mouth, etc.

[0004] Therefore, it is necessary to develop safer and more demand-oriented automatic dispensing equipment and corresponding dispensing methods to reduce the risk of drug solution preparation and improve dispensing efficiency and accuracy. Summary of the invention

[0005] In view of the deficiencies of the prior art and application needs, the purpose of the present invention is to provide a process-sealed automatic dispensing equipment and method, which can realize convenient and accurate automatic dispensing, while achieving air pressure balance in the drug container. The entire dispensing process has good airtightness and low leakage risk.

[0006] In order to achieve the above object, the present invention adopts the following technical solution.

[0007] A process-enclosed automatic dispensing device includes a dispensing component, characterized in that: the dispensing component includes a dispenser and a needle seal; the dispenser has a dispensing component and an air pressure balance component, the dispensing component is equipped with a liquid channel puncture needle, and a liquid storage chamber connected to the rear end of the liquid channel puncture needle; the air pressure balance component is equipped with an airway puncture needle, and an air storage chamber connected to the rear end of the airway puncture needle.

[0008] In the process-sealed automatic dispensing device, the needle seal is used to seal the needle of the liquid channel puncture needle in the dispensing component, or is used to simultaneously seal the needles of the liquid channel puncture needle in the dispensing component and the airway puncture needle in the air pressure balance component.

[0009] The present invention also provides an automatic dispensing method using the automatic dispensing device, which at least comprises the following steps: S100, controlling the automatic dispensing equipment to drive the needle sealing part to dock with the mouth of the drug container; S200, driving the dispenser to move toward the drug container until the needles of the liquid channel puncture needle and the airway puncture needle pierce the needle sealing member and the bottle mouth of the drug container and enter the drug container; S300, driving the dispenser to extract liquid medicine from the medicine container, or driving the dispenser to inject liquid medicine into the medicine container; S400, driving the dispenser to move in a direction away from the medicine container until the needles of the liquid channel puncture needle and the airway puncture needle are pulled out from the inside of the medicine container and the bottle mouth of the medicine container in turn, and are sealed in the needle sealing member again.

[0010] In step S300, driving the dispenser to extract liquid medicine from the medicine container includes: S301, the automatic dispensing device controls the liquid chamber to form a negative pressure, and / or the automatic dispensing device controls the gas chamber to form a positive pressure, so that the liquid medicine in the medicine container flows into the liquid chamber through the liquid channel puncture needle, and at the same time, the gas in the gas chamber flows into the medicine container through the gas channel puncture needle; In step S300, driving the dispenser to inject liquid medicine into the medicine container may include: S302, the automatic dispensing device controls the liquid chamber to form a positive pressure, and / or the automatic dispensing device controls the gas chamber to form a negative pressure, so that the liquid medicine in the liquid chamber flows into the medicine container through the liquid channel puncture needle, and at the same time, the gas in the medicine container flows into the gas chamber through the airway puncture needle.

[0011] It is easy to understand that the aforementioned device and dispensing method of the present invention are applicable to various types of drug containers, such as vials, infusion bottles or infusion bags.

[0012] In the automatic medicine dispensing device of the present invention, the medicine dispensing component and the air pressure balancing component can be independent of each other.

[0013] As a specific embodiment, the medication dispensing component is a first syringe, and the air pressure balance component is a second syringe; the needle sealing component includes a first sealing component and a second sealing component; in an initial state, the first sealing component 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 component is arranged at the front end of the needle tube of the second syringe in a manner of wrapping and sealing the needle port.

[0014] In the aforementioned embodiment, the liquid puncture needle and the airway puncture needle are respectively connected to the first syringe and the second syringe; the first piston rod is slidably disposed in the inner cavity of the first syringe, and the first piston rod and the first syringe cooperate to form a liquid volume chamber that forms a pressure difference through volume change; the second piston rod is slidably disposed in the inner cavity of the second syringe, and the second piston rod and the second syringe cooperate to form an air volume chamber that forms a pressure difference through volume change.

[0015] As another specific embodiment, the liquid channel puncture needle is the first needle tube, the airway puncture needle is the 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 chamber, 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 airbag; the liquid storage chamber and the airbag serve as the liquid accommodating chamber and the air accommodating chamber respectively, and the first accommodating tube and the second accommodating tube are connecting components.

[0016] In the automatic medicine dispensing device of the present invention, the medicine dispensing component and the air pressure balancing component can be integrated.

[0017] As a specific embodiment, the dispenser includes a first needle tube, a second needle tube, a first needle seat, a first syringe and a second syringe; 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 and the second syringe, and two independent channels are arranged in the first needle seat, the first needle tube is connected to the first syringe through the first channel, and the second needle tube is connected to the second syringe through the second channel; the first needle tube and the first syringe connected through the needle seat constitute a dispensing assembly, and the first needle tube is a liquid puncture needle; the second needle tube and the second syringe connected through the needle seat constitute an air pressure balance assembly, and the second needle tube is an airway puncture needle.

[0018] In the aforementioned embodiment, preferably, the liquid channel puncture needle and the airway puncture needle are double-layer columnar structures, the outer channel of the double-layer columnar structure is the liquid channel, and the inner channel of the double-layer columnar structure is the airway; or, the liquid channel puncture needle and the airway puncture needle are arranged in a side-by-side double needle structure.

[0019] Preferably, in the aforementioned embodiment, the first syringe and the second syringe are fixedly connected to each other and can be detached. As a specific embodiment, the first needle seat is provided with a first channel and a second channel inside, an air window is provided on the side, and a cavity for connecting and fixing with the connector on the first syringe is provided at the end; the end of the first channel is connected to the cavity, and the end of the second channel is connected to the air window; a sealing plug is provided 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. When the first syringe and the second syringe are fixedly connected, the puncture needle at the front end of the second syringe pierces the sealing plug in the air window of the first needle seat and is connected 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.

[0020] Further preferably, a stop-go module for controlling the penetration or isolation of the second channel is provided in the second channel of the first needle seat to further ensure the sealing of the second channel relative to the outside. As an embodiment, the stop-go module is a rotatable stop valve with a through hole provided therein; the stop valve can be rotated to align or misalign the through hole with the second channel, thereby conveniently achieving the penetration or isolation of the channels on both sides.

[0021] Further preferably, a protrusion is radially arranged on a side of the first needle seat close to the second channel, and the air window is arranged at the end of the protrusion.

[0022] The automatic dispensing device of the present invention includes a pressure generating component. As a specific embodiment, the pressure generating component controls the advance and retreat of the push rod in the syringe, thereby causing pressure changes in the liquid storage chamber and / or the gas storage chamber. As another specific embodiment, when the dispenser uses the configuration including the liquid storage chamber, the air bag, the first storage tube and the second storage tube as described above, the pressure generating component can be a peristaltic pump, which is driven by the peristaltic pump to generate pressure in the pipeline of the storage tube.

[0023] In the automatic drug dispensing device of the present invention, the needle sealing member seals one or both of the liquid passage puncture needle and the airway puncture needle when they are pulled out from the drug container.

[0024] As a preferred embodiment, the needle sealing member comprises a sleeve device which is sleeved on the outside of the syringe barrel or the first needle seat, the sleeve device comprises a slide groove inside, and the syringe barrel or the needle seat comprises a convex rib which cooperates with the slide groove outside, the convex rib and the slide groove enable the sleeve device to slide axially on the syringe barrel or the needle seat and limit relative rotation; a sealing device for the fluid channel puncture needle and / or the airway puncture needle to pass through is arranged inside 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 provides support for the sealing device so that the sealing device wraps the needle of the fluid channel puncture needle and / or the airway puncture needle to seal it, and in the pressurized state, the elastic device is compressed so that the needle passes through the sealing device.

[0025] The process-enclosed automatic dispensing device of the present invention further comprises a dispensing component moving part, a pressure generating part, and a medicine bottle placing part; wherein, The medicine dispensing component moving part comprises a moving platform and a syringe clamp arranged on the moving platform; The pressure generating component is arranged on the mobile platform; The medicine bottle placement part includes a medicine bottle clamp, which is used to clamp the medicine bottle; there are multiple medicine bottle clamps, which are assembled on the moving wheel along the circumference; the moving wheel is rotatable, and the opening of the medicine bottle clamp is arranged axially toward the moving wheel; the two opposite sides of the moving wheel are provided with a bottle hanging manipulator and a bottle picking manipulator, both of which can automatically hang the medicine bottle into the medicine bottle clamp or take it away; the moving wheel is provided with a working position corresponding to the moving platform. Preferably, the working position is arranged between the bottle hanging manipulator and the bottle picking manipulator.

[0026] The mobile platform is used to drive the dispenser and the needle seal to move and rotate between the horizontal X axis and the vertical Y axis, so that the dispensing component can move to a set position and adjust to a specific posture relative to the drug container. As a preferred embodiment, the dispensing component moving part includes a puncture moving mechanism, which is arranged on the mobile platform and can move forward and backward along a set track on the mobile platform; the syringe clamp is fixedly arranged on the puncture moving mechanism, and is used to clamp, for example, a syringe. Preferably, the pressure generating component is arranged on the puncture moving mechanism.

[0027] As a preferred embodiment, the bottle hanging robot and the bottle picking robot are provided with scanning devices; the scanning devices scan the information labels on the medicine bottles to obtain the drug information for operation; the medicine bottle clamps have corresponding information labels, and when the medicine bottles are hung, the scanning device of the bottle hanging robot scans the information labels on the medicine bottles and the corresponding medicine bottle clamps and associates the two; when the medicine bottles are taken off, the scanning device of the bottle picking robot scans the information labels on the medicine bottles and the corresponding medicine bottle clamps, and if they are inconsistent with the associated information, an alarm is issued, and if they are consistent, the group of associated information is released and the medicine bottles are removed.

[0028] After receiving the dispensing information, the control device rotates the required medicine bottle to the working position according to the associated information of the medicine bottle and the medicine bottle clamp so that the mobile platform can approach and work. Preferably, the mobile platform is provided with a second scanning device, which scans the information label on the medicine bottle and the corresponding medicine bottle clamp, and alarms if it is inconsistent with the associated information, and performs the dispensing work if it is consistent.

[0029] The process-sealed automatic dispensing device of the present invention may also include a component moving mechanism for clamping and fixing the needle seal, and the component moving mechanism is movably arranged on the dispensing component moving part. Preferably, the component moving mechanism includes a seal clamp for clamping the needle seal. When the device is running, the dispensing component moving part is controlled to drive the dispenser and the needle seal to move until the front end of the needle seal abuts against the bottle mouth of the drug container, and then the control component moving mechanism is kept in position, and the dispensing component moving part is controlled to drive the dispenser to move in the direction of the drug container until the needle pierces the needle seal and the bottle mouth of the drug container and enters the drug container. After the extraction / injection of the drug solution is completed, the dispensing component moving part is controlled to drive the dispenser to move in the direction of the drug container until the needle is pulled out from the inside of the drug container and the bottle mouth of the drug container in turn, and is sealed in the needle seal again.

[0030] As a preferred embodiment, the automatic dispensing equipment is provided with a self-checking program. The bottle hanging robot grabs the medicine at the designated position according to the set program. Before grabbing, the scanning device of the bottle hanging robot scans the medicine information and compares it with the medicine order information pre-entered into the system. If there is inconsistency, an alarm is given. If there is consistency, the dispensing process continues.

[0031] Further preferably, the automatic medication dispensing device is connected to the hospital's prescription system to automatically obtain medication dispensing information prescribed by the doctor for use in the self-examination procedure.

[0032] As a preferred embodiment, the automatic dispensing device further comprises a disinfection device, which can disinfect designated parts and / or positions in the automatic dispensing device according to a set program. Preferably, the disinfection is performed by spraying a disinfectant or irradiating ultraviolet rays.

[0033] Compared with the prior art, the beneficial effects of the present invention are: it can realize the automation of drug dispensing, especially dangerous drugs, reduce manual dispensing errors, and improve the protection of medical personnel. During the dispensing process, the air pressure inside and outside the drug container is balanced. Whenever a certain amount of liquid medicine is extracted, gas will be added to the drug container. Whenever a certain amount of liquid medicine is injected, the abundant gas will be discharged from the drug container. Combined with the setting of a needle seal, it can effectively avoid the leakage of the drug solution, and the force control during automatic extraction is simpler. The automatic dispensing equipment of the present invention has a simple structure and low cost, and can meet the current practical application needs with high cost performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The figure is a schematic flow chart of an automatic medicine dispensing method according to the present invention.

[0035] Figure 2 The figure is a schematic partial structural diagram of an automatic medicine dispensing device used in an automatic medicine dispensing method according to the present invention.

[0036] Figure 3 It is a schematic cross-sectional structure diagram of a medicine dispensing component used in the automatic medicine dispensing method according to the first embodiment of the present invention.

[0037] Figure 4 Schematic diagram of the structure of the automatic dispensing equipment and the first dispensing process used in the automatic dispensing method according to the first embodiment of the present invention.

[0038] Figure 5 Schematic diagram of the structure of the automatic dispensing equipment and the second dispensing process used in the automatic dispensing method according to the first embodiment of the present invention.

[0039] Figure 6 Schematic diagram of the structure of the automatic dispensing equipment used in the automatic dispensing method according to the first embodiment of the present invention and the third dispensing process.

[0040] Figure 7 Schematic diagram of the structure of the automatic dispensing equipment used in the automatic dispensing method according to the first embodiment of the present invention and the fourth dispensing process.

[0041] Figure 8 It is a schematic cross-sectional structure diagram of a medicine dispensing component used in an automatic medicine dispensing method according to a second embodiment of the present invention.

[0042] Fig. 9 Schematic diagram of the structure of the automatic dispensing equipment and the first dispensing process used in the automatic dispensing method according to the second embodiment of the present invention.

[0043] Fig.10 Schematic diagram of the structure of the automatic dispensing equipment and the second dispensing process used in the automatic dispensing method according to the second embodiment of the present invention.

[0044] Fig.11 Schematic diagram of the structure of the automatic dispensing equipment used in the automatic dispensing method according to the second embodiment of the present invention and the third dispensing process.

[0045] Fig.12 Schematic diagram of the structure of the automatic dispensing equipment used in the automatic dispensing method according to the second embodiment of the present invention and the fourth dispensing process.

[0046] Fig.13 Schematic diagram of the appearance of the medicine dispensing components used in the automatic medicine dispensing method according to the second embodiment of the present invention.

[0047] Fig.14 FIG. 1 is a schematic partial structural diagram of an automatic medicine dispensing device used in an automatic medicine dispensing method according to a third embodiment of the present invention.

[0048] Fig.15 Schematic diagram of the structure of the medicine dispensing component mentioned in the third embodiment of the present invention.

[0049] Fig.16 It is a schematic partial structural diagram of an automatic medicine dispensing device used in an automatic medicine dispensing method according to a fourth embodiment of the present invention.

[0050] Fig.17 It is a schematic partial structural diagram of an automatic medicine dispensing device used in an automatic medicine dispensing method according to a fifth embodiment of the present invention.

[0051] Figure numerals: 10, automatic dispensing equipment; 11, dispensing component moving part; 12, component moving mechanism; 13, pressure generating component; 14, medicine bottle placing part; 101, moving platform; 102, sealing member clamp; 103, puncture moving mechanism; 104, syringe 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 track; 111, medicine bottle clamp; 112, moving wheel; 113, chemotherapy pump; 20. Dispenser; 201. Liquid channel puncture needle; 202. Airway puncture needle; 203. Liquid storage chamber; 204. Air storage chamber; 21. First needle tube; 22. Second needle tube; 23. First needle seat; 24. First syringe; 25. First piston rod; 26. Second syringe; 27. Second piston rod; 28. Second needle seat; 29. ​​First accommodating tube; 30. Second accommodating tube; 31. Liquid bag; 32. Air bag; 33. Needle seal; 34. Stop valve; 40. Drug container; 41. Infusion bottle; 42. Medicine bottle; 50. Gas distribution chamber; 60. Chemotherapy pump. DETAILED DESCRIPTION

[0052] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] like Figure 1 and Figure 2 As shown, a closed process automatic dispensing method according to an embodiment of the present invention is applied to control the automatic dispensing device 10 to achieve driving the drug to run between the dispensing component and the drug container 40 with the help of the automatic dispensing device 10.

[0054] refer to Figure 2 The automatic dispensing device 10 includes a device for driving the relative movement between the dispensing component and the drug container 40 , and a device for driving the drug to flow between the dispensing component and the drug container 40 .

[0055] refer to Figure 2 The dispensing component includes a dispensing device 20 and a needle seal 33. The dispensing device 20 includes at least a liquid channel puncture needle 201, an airway puncture needle 202, a liquid containing chamber 203 and an air containing chamber 204. The rear end of the liquid channel puncture needle 201 is connected to the liquid containing chamber 203, and the rear end of the airway puncture needle 202 is connected to the air containing chamber 204. The liquid channel puncture needle 201 is used to puncture the inside of the drug container 40 and provide the flow of the drug liquid, while the airway puncture needle 202 is used to puncture the inside of the drug container 40 and provide the flow of gas (such as air). The needle seal 33 is configured with a medical elastic material, which is used to wrap the needles of the liquid channel puncture needle 201 and the airway puncture needle 202.

[0056] Before dispensing, the dispensing components and the drug container 40 can be manually clamped on the automatic dispensing device 10. Among them, the needle seal 33 is clamped in a manner of wrapping the needle of the dispenser 20. It can be understood that with the improvement and demand of the automation function of the automatic dispensing device 10, a control program can also be preset so that the automatic dispensing device 10 can automatically grab and assemble the dispensing components and the drug container 40.

[0057] refer to Figure 1 The process-enclosed automatic dispensing method uses the automatic dispensing device 10 to dispense medicine, and at least includes the following steps: S100, controlling the automatic dispensing device 10 to drive the needle sealing member 33 to abut against the bottle mouth of the medicine container 40; S200, driving the dispenser 20 to move toward the medicine container until the needles of the liquid channel puncture needle 201 and the airway puncture needle 202 pierce the needle seal 33 and the bottle mouth of the medicine container 40 and enter the interior of the medicine container 40; S300, driving the dispenser 20 to extract liquid medicine from the medicine container 40, or driving the dispenser 20 to inject liquid medicine into the medicine container 40; S400, drive the dispenser 20 to move away from the drug container 40 until the liquid channel puncture needle 201 and the airway puncture needle 202 are pulled out from the inside of the drug container 40 and the bottle mouth of the drug container 40 in turn, and are sealed in the needle seal 33 again.

[0058] In the above-mentioned dispensing method, when the dispenser 20 is separated from the medicine container 40, the needle seal 33 will cover the needle of the dispenser 20. When the needle of the dispenser 20 pierces the inside of the medicine container 40, the needle seal 33 is pushed into the rear of the needle tube, thereby exposing the needle of the needle tube for piercing the inside of the medicine container 40. During the dispensing process, the needle has no contact with the outside world, which effectively avoids the leakage of the liquid medicine.

[0059] Step S300 is a liquid transfer step, which specifically includes: S301, the automatic dispensing device 10 controls the liquid chamber 203 to form a negative pressure, and / or the automatic dispensing device 10 controls the air chamber 204 to form a positive pressure, until the drug liquid flows from the drug container 40 into the liquid chamber 203 through the liquid channel puncture needle 201, and at the same time, the air in the air chamber 204 flows into the drug container 40 through the air channel puncture needle 202.

[0060] Step S302, the automatic dispensing equipment 10 controls the liquid chamber 203 to form a positive pressure, and / or the automatic dispensing equipment 10 controls the gas chamber 204 to form a negative pressure, until the drug liquid flows from the liquid chamber 203 into the drug container 40 through the liquid channel puncture needle 201, and at the same time, the enriched gas in the drug container 40 flows into the gas chamber 204 through the gas channel puncture needle 202.

[0061] It is worth noting that in steps S301 and S302, when the liquid channel puncture needle 201 and the airway puncture needle 202 penetrate the interior of the drug container, the liquid chamber 203, the liquid channel puncture needle 201, the drug container 40, the airway puncture needle 202, and the gas chamber 204 are connected in sequence. When the liquid chamber 203 is actively driven to form a positive pressure or a negative pressure, the gas chamber 204 will automatically inhale gas or automatically replenish gas into the drug container under the action of air pressure balance. Similarly, when the air chamber 204 is actively driven to form a positive pressure or a negative pressure, the liquid chamber 203 will automatically inhale liquid medicine or automatically inject liquid medicine into the drug container under the action of air pressure balance.

[0062] First specific embodiment The first specific embodiment is based on a specific application of a closed process automatic drug dispensing method.

[0063] like Figure 3As shown, it is a medicine dispensing component used in the automatic medicine dispensing process of the first specific embodiment. The medicine dispensing component is composed of a first needle tube 21, a second needle tube 22, a first needle seat 23, a first injection cylinder 24, a first piston rod 25, a second injection cylinder 26 and a second piston rod 27. Specifically, the rear end of the second needle tube 22 is connected to the inner cavity of the second injection cylinder 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 connected to the inner cavity of the first injection cylinder 24.

[0064] 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 tube cavity of the second needle tube 22 serves as an air channel. The first piston rod 25 is slidably disposed in the inner cavity of the first injection cylinder 24, and the first piston rod 25 and the first injection cylinder 24 cooperate to form a liquid volume chamber 203 that forms a pressure difference through volume change. The second piston rod 27 is slidably disposed in the inner cavity of the second injection cylinder 26, and the second piston rod 27 and the second injection cylinder 26 cooperate to form an air volume chamber 204 that forms a pressure difference through volume change.

[0065] 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 extending direction so that the two can be punctured into the drug container together.

[0066] like Figures 4 to 7 The figure is a schematic diagram of the structure of the automatic dispensing device and the dispensing process used in the automatic dispensing method of the first specific embodiment. The automatic dispensing device 10 includes a dispensing component moving part 11, a component moving mechanism 12, a pressure generating component 13 and a medicine bottle placing part 14.

[0067] Specifically, the medicine dispensing component moving part 11 includes a moving platform 101. The moving platform 101 is used to drive the medicine dispensing device 20 and the needle seal 33 to move and rotate between the horizontal X axis and the vertical Y axis, so that the medicine dispensing component can move to a set position and adjust to a specific posture relative to the medicine container.

[0068] The medicine dispensing component moving part 11 includes a puncture moving mechanism 103, which is disposed on the moving platform 101 and can reciprocate along a set track on the moving platform 101. The syringe clamp 104 is fixedly disposed on the puncture moving mechanism 103 and is used to clamp the first syringe 24 and the second syringe 26.

[0069] The component moving mechanism 12 is movably disposed on the medicine dispensing component moving portion 11 , and includes a sealing member clamp 102 for clamping the needle sealing member 33 .

[0070] The pressure generating component 13 is arranged on the puncture moving mechanism 103. The pressure generating component 13 includes 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 move in the axial linear direction relative to the first injection cylinder 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 move in the axial linear direction relative to the second injection cylinder 26.

[0071] Specifically, the medicine bottle placement portion 14 includes an infusion bottle holder 109 and a medicine bottle clamp 111. The infusion bottle holder 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 be suitable for the dispensing of a variety of drugs, a plurality of medicine bottle clamps 111 are provided and are circumferentially mounted on the moving wheel 112. In order to adapt to the position of the mobile platform 101 and the infusion bottle 41, the infusion bottle holder 109 is arranged on the moving track 110, and the infusion bottle holder 109 can be rotated and adjusted in the circumferential direction.

[0072] An illustrative example of drug dispensing is to extract the solvent 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 7 The automatic dispensing method according to the present embodiment is shown, and the dispensing process is completed by the automatic dispensing device 10. In the pre-step, the medicine bottle 42 is installed on the medicine bottle clamp 111, the infusion bottle 41 is installed in the infusion bottle holder 109, the integrated first syringe 24 and second syringe 26 are installed on the syringe clamp 104, and the needle seal 33 is fixed on the seal clamp 102. In the installed state of the dispensing components, the needle seal 33 wraps the needles of the first needle tube 21 and the second needle tube 22 of the dispenser 20. 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.

[0073] The automatic dispensing method of this embodiment includes the following steps: (1) Control the moving platform 101 to move, drive the dispenser 20 and the needle seal 33 to move together, and make the needle seal 33 abut against the bottle mouth of the infusion bottle 41. This is equivalent to executing step S100.

[0074] (2) Control the puncture moving mechanism 103 to move, driving the dispenser 20 to move in the direction of piercing the needle seal 33 along the axial direction, until the first needle tube 21 and the second needle tube 22 pierce the needle seal 33 and the bottle mouth of the infusion bottle 41 and enter the interior of the infusion bottle 41. This is equivalent to executing step S200.

[0075] (3) Control the first piston rod moving mechanism 106 to drive the first piston rod 25 to move axially backward, and control the second piston rod moving mechanism 108 to drive 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 tube 21 and the first needle seat 23. At the same time, 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 the second needle tube 22. That is, it is equivalent to executing step S301, the liquid medicine in the infusion bottle 41 is drawn into the first syringe 24, and at the same time, there is supplementary air from the second syringe 26 in the infusion bottle 41, 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 imbalance of air pressure.

[0076] (4) Control the puncture moving mechanism 103 to move, driving the dispenser 20 to move in the direction away from the infusion bottle 41 along the axial direction, until the needles of the first needle tube 21 and the second needle tube 22 exit the bottle mouth of the infusion bottle 41 and return to the inside of the needle seal 33. This is equivalent to executing step S400.

[0077] (5) Control the moving platform 101 to move, driving 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. This is equivalent to executing step S100 again.

[0078] (6) Control the puncture moving mechanism 103 to move, driving the dispenser 20 to move in the direction of piercing the needle seal 33 along the axial direction, until the first needle tube 21 and the second needle tube 22 pierce the needle seal 33 and the bottle mouth of the medicine bottle 42 and enter the interior of the medicine bottle 42. This is equivalent to executing step S200.

[0079] (7) Control the first piston rod moving mechanism 106 to drive the first piston rod 25 to move forward in the axial direction, and control the second piston rod moving mechanism 108 to drive the second piston rod 27 to move backward in the axial direction. As the first piston rod 25 moves forward, the inner cavity of the first syringe 24 will be compressed to form a positive pressure, so that the solvent in the first syringe 24 will be injected into the medicine bottle 42 through the first needle seat 23 and the first needle tube 21. At the same time, as the second piston rod 27 moves backward, 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 will be discharged into the inner cavity of the second syringe 26 through the second needle tube 22 and the first needle seat 23. That is, it is equivalent to executing step S302, and the solvent 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 air is discharged into the second syringe 26.

[0080] Then, referring to the above steps (3) to (7), the mixed liquid medicine is extracted from the medicine bottle 42 and injected into the infusion bottle 41. After the infusion bottle 41 is finished dispensing, it will be taken out by the medical staff, and the used dispensing components and the medicine container 40 will be taken out from the automatic dispensing device 10 and safely disposed of.

[0081] Second specific embodiment like Figure 7 As shown, the dispensing components used in the automatic dispensing process of the second specific embodiment include a dispensing device and a needle sealing member 33. The drug dispenser comprises 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 .

[0082] The first needle tube 21 and the second needle tube 22 form a double-layer columnar structure, the outer channel of the double-layer columnar structure 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.

[0083] The first needle seat 23 is provided with a first channel and a second channel which are independent of each other; a protrusion is radially provided on one side close to the second channel, and an air window is provided at the end of the protrusion, and a sealing plug is provided in the air window; a cavity is provided at the end of the first needle seat 23 for connecting and fixing with the joint on the first syringe 24. The end of the first channel is connected to the cavity, and the end of the second channel is connected to the air window. A rotatable stop valve 34 is provided in the second channel for controlling the passage or isolation of the second channel.

[0084] 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, and the puncture needle pierces the sealing plug in the air window of the first needle seat 23 to communicate with the second channel in the first needle seat 23.

[0085] The rear end of the first needle seat 23 is fixedly connected to the joint at the front end of the first syringe through the cavity. The liquid channel in the double-layer columnar structure is connected to the first syringe 24 through the first channel, and the air channel is connected to the second syringe 26 through the second channel (when the stop valve 34 is in the through state).

[0086] like Figure 7As shown in the figure, the needle seal 33 has a sleeve device sleeved on the outside of the first needle seat 23, the sleeve device has a slide groove inside, and the first needle seat 23 has a rib on the outside that cooperates with the slide groove, and the rib and the slide groove allow the sleeve device to slide axially on the first needle seat 23 and limit relative rotation. A sealing device for the first needle tube 21 and the second needle tube 22 to pass through is arranged inside the top of the sleeve, and an elastic device is arranged 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, so that the sealing device wraps the needles of the first needle tube 21 and the second needle tube 22 to seal them, and in the compressed state, the elastic device is compressed to make the needles pass through the sealing device.

[0087] like Figure 8 As shown, the automatic dispensing device 10 of this embodiment also includes an air distribution chamber 50. The interior of the air distribution chamber 50 is a cavity, one end of which is opened and provided with a sealing glue, and the other end is provided with a one-way air valve and a filter membrane, and the one-way air valve only allows one-way flow of air from the outside to the inner cavity of the air distribution chamber 50.

[0088] The automatic drug dispensing method of this embodiment can be used to control the automatic drug dispensing device 10 to prepare anti-tumor drugs. Figures 9 to 12 The automatic dispensing process according to this embodiment is shown. First, the dispenser 20 extracts a first preset dose of the solvent from the infusion bottle 41, and then injects the solvent into the medicine bottle 42 to mix with the medicine in the medicine bottle 42, then extracts the mixed liquid medicine in the medicine bottle 42, and injects the mixed liquid medicine into the chemotherapy pump 60, and the cycle repeats multiple times until the amount of medicine in the chemotherapy pump 60 is sufficient; finally, the dispenser 20 extracts a second preset dose of the solvent from the infusion bottle 41, and then injects the solvent into the medicine bottle 42 to mix with the medicine in the medicine bottle 42, and then extracts the mixed liquid medicine in the medicine bottle 42 and retains it in the dispenser 20. When the medicine is in use, the prepared liquid medicine in the dispenser 20 is first injected into the patient, and then the prepared liquid medicine in the chemotherapy pump 60 is slowly injected into the patient.

[0089] In the pre-installation step, the gas distribution chamber 50 and a plurality of medicine bottles 42 are installed on the medicine bottle clamp 111, the infusion bottle 41 is installed in the infusion bottle bracket 109, the chemotherapy pump 60 is installed on the chemotherapy pump bracket 113, the integrated first syringe 24 and second syringe 26 are installed on the syringe clamp 104, and 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 tube 21 and the second needle tube 22 of the dispenser 20.

[0090] The automatic dispensing method of this embodiment includes the following steps: (1) Control the non-conducting valve 34. Control the moving platform 101 to move, drive the dispenser 20 and the needle seal 33 to move together, and make the needle seal 33 abut against the bottle mouth sealing glue of the gas distribution chamber 50. Control the puncture moving mechanism 103 to move, drive 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 pierce the needle seal 33 and the sealing glue of the gas distribution chamber 50 and enter the interior of the gas distribution chamber 50. Control the second piston rod moving mechanism 108 to move, so that the second piston rod 27 moves backward, so that the second syringe 26 extracts air from the gas distribution chamber 50. Then pull the dispenser 20 out of the gas distribution chamber 50 until the needles of the first needle tube 21 and the second needle tube 22 retreat to the interior of the needle seal 33.

[0091] (2) Control the movement of the mobile platform 101 to drive 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. Control the movement of the puncture moving mechanism 103 to drive the dispenser 20 to move in the direction of axially passing through the needle seal 33 until the first needle tube 21 and the second needle tube 22 pierce the needle seal 33 and the bottle mouth of the infusion bottle 41 and enter the interior of the infusion bottle 41. Control the first piston rod moving mechanism 106 to move the first piston rod 25 axially backward, and control the second piston rod moving mechanism 108 to move the second piston rod 27 axially forward, so that the first preset dose of the solvent is extracted into the first syringe 24, and the air in the second syringe 26 is replenished into the infusion bottle 41. The puncture moving mechanism 103 is controlled to move, driving the dispenser 20 to move in the direction away from the infusion bottle 41 along the axial direction, until the needles of the first needle tube 21 and the second needle tube 22 exit the bottle mouth of the infusion bottle 41 and return to the inside of the needle seal 33. That is, it is equivalent to executing steps S100, S200, S301 and S400 in sequence to extract the solvent from the infusion bottle 41. During the process, the needles of the first needle tube 21 and the second needle tube 22 do not contact the outside, and the air pressure in the infusion bottle 41 remains balanced.

[0092] (3) Control the movement of the moving wheel 112, replace the gas chamber 50, and move the medicine bottle 42 to the corresponding working position. Control the movement of the moving platform 101 to drive 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. Control the movement of the puncture moving mechanism 103 to drive the dispenser 20 to move in the direction of axially passing through the needle seal 33 until the first needle tube 21 and the second needle tube 22 pierce the needle seal 33 and the bottle mouth of the medicine bottle 42 and enter the interior of the medicine bottle 42. Control the first piston rod moving mechanism 106 to drive the first piston rod 25 to move forward in the axial direction, and control the second piston rod moving mechanism 108 to drive the second piston rod 27 to move backward in the axial direction. As the first piston rod 25 moves forward, the inner cavity of the first syringe 24 will be 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, as the second piston rod 27 moves backward, 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 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 abundant air is discharged into the second syringe 26. When the solvent and the medicine are fully mixed to form a mixed liquid medicine, the first piston rod moving mechanism 106 is controlled to drive the first piston rod 25 to move backward in the axial direction, and the second piston rod moving mechanism 108 is controlled to drive the second piston rod 27 to move forward in the axial direction, 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 replenished into the medicine bottle. Then, the puncture moving mechanism 103 is controlled to move, driving the dispenser 20 to move in the direction away from the medicine bottle 42 along the axial direction, until the needles of the first needle tube 21 and the second needle tube 22 exit the bottle mouth of the medicine bottle 42 and return to the inside of the needle seal 33. That is, it is equivalent to executing steps S100, S200, S302, S301 and S400, and the solvent is injected into the medicine bottle 42 and the mixed liquid medicine is extracted from the medicine bottle 42. During the process, the needles of the first needle tube 21 and the second needle tube 22 do not contact the outside world, and the air pressure in the medicine bottle 42 is kept balanced.

[0093] (4) Control the check valve 34 to close. Control the movement of the mobile platform 101 to drive the dispenser 20 and the needle seal 33 to move together, so that the needle seal 33 abuts against the joint of the chemotherapy pump 60. Control the movement of the puncture movement mechanism 103 to drive the dispenser 20 to move in the direction of axially passing through the needle seal 33 until the first needle tube 21 and the second needle tube 22 pierce the joint between the needle seal 33 and the chemotherapy pump 60 and enter the inside of the joint of the chemotherapy pump 60. Control the first piston rod movement mechanism 106 to drive the first piston rod 25 to move forward in the axial direction until the mixed liquid medicine is completely injected from the first syringe 24 into the chemotherapy pump 60. Control the movement of the puncture movement mechanism 103 to drive the dispenser 20 to move in the direction of axially moving away from the chemotherapy pump 60 until the needles of the first needle tube 21 and the second needle tube 22 exit the joint of the chemotherapy pump 60 and return to the inside of the needle seal 33. That is, steps S100, S200, S302 and S400 are executed to inject the mixed liquid medicine into the chemotherapy pump 60. During the process, the stop valve 34 is preferably closed to prevent the chemotherapy drugs from entering the dispenser and minimize the potential impact on the subsequent environment or operation.

[0094] The above steps (1) to (4) of this embodiment are cycled until the drug dosage in the chemotherapy pump 60 reaches the target.

[0095] (5) Referring to the above steps (1) to (3) of this embodiment, by using the second preset dose of the solvent, mixed liquid medicines of different concentrations are prepared and drawn into the first syringe 24. The chemotherapy pump 60 is no longer injected, and the stop valve 34 is closed.

[0096] like Fig.13 As shown, the dispenser 20 is removed from the automatic dispensing device 10, and the second syringe 26 is separated from the dispenser 20 and safely disposed of. The remaining part with the mixed liquid medicine (the part shown on the left) will be used for the treatment of the patient. The chemotherapy pump 60 is removed from the automatic dispensing device 10 and will be used for the treatment of the patient. The used infusion bottle 41, medicine bottle 42 and gas distribution chamber 50 in the automatic dispensing device 10 will be removed and safely disposed of.

[0097] Third specific embodiment In the third specific embodiment, the medicine dispensing device 20 of the medicine dispensing component is a single liquid medicine dispensing device. The medicine dispensing component includes the medicine dispensing device 20 and the needle seal 33. The medicine dispensing device 20 is composed of a first needle tube 21, a first needle seat 23, a first syringe 24, and a first piston rod 25.

[0098] like Fig.14 As shown, the automatic dispensing device 10 further includes a dispensing component moving portion 11 , a component moving mechanism 12 , a pressure generating component 13 and a medicine bottle placing portion 14 .

[0099] Schematically, the medicine dispensing example is to extract the medicine liquid in the medicine bottle 42. The automatic medicine dispensing method of this embodiment includes the following steps: (1) Control the medicine dispensing component moving part 11 to move, drive the medicine dispensing device 20 and the needle sealing member 33 to move together, and make the needle sealing member 33 abut against the bottle mouth of the medicine bottle 42. This is equivalent to executing S100.

[0100] (2) The component moving mechanism 12 fixes the needle seal. The medicine dispensing component moving part 11 is controlled to move, driving the medicine dispensing device 20 to move in the direction of passing through the needle seal 33 along the axial direction until the first needle tube 21 pierces the needle seal 33 and the bottle mouth of the medicine bottle 42 and enters the interior of the medicine bottle 42. This is equivalent to executing S200.

[0101] (3) The pressure generating component 13 is controlled to operate, and the first piston rod 25 moves backward, so that negative pressure is formed inside the first syringe 24, so that the liquid medicine in the medicine bottle 42 flows into the first syringe 24 through the first needle tube 21. This is equivalent to executing S301.

[0102] (4) Control the medicine dispensing component moving part 11 to move, driving the medicine dispensing device 20 to move in the axial direction away from the medicine bottle 42, until the needle of the first needle tube 21 exits the bottle mouth of the medicine bottle 42 and returns to the inside of the needle sealing member 33. This is equivalent to executing S400.

[0103] In the process of dispensing medicine in this embodiment, the first needle tube 21 has no contact with the outside world, thus avoiding leakage of liquid medicine. However, it is worth noting that the air pressure is not balanced during the process of extracting liquid medicine, making the extraction action difficult. Fig.15 Improvements shown. Fig.15 The medicine dispensing component shown includes a medicine dispenser 20 and a needle seal 33. The medicine dispenser 20 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 and an air bag 32. Two independent channels are arranged in the first needle seat 23, 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 a stop valve 34 is arranged in the second channel for controlling the second channel to pass through or be cut off.

[0104] Fourth specific embodiment like Fig.16As shown, in the fourth specific embodiment, the medicine dispensing component includes a medicine dispensing device 20 and a needle seal 33. The medicine dispensing device 20 has a medicine dispensing component and an air pressure balance component, the medicine dispensing component is a first syringe, and the air pressure balance component is a second syringe, and the two have the same structure but are independent of each other. The needle seal 33 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.

[0105] Fifth specific embodiment like Fig.17 As shown, in the fifth specific embodiment, the medicine dispensing component includes a medicine dispensing device 20 and a needle sealing member 33. The medicine dispensing device 20 is composed of a first needle tube 21, a second needle tube 22, a first accommodating tube 29, a second accommodating tube 30, a liquid capsule 31 (i.e., a liquid storage chamber) and an air bag 32.

[0106] When the automatic dispensing device 10 including the above-mentioned dispensing components is used to prepare the drug solution, the pressure generating component 13 uses a peristaltic pump, which is driven by the peristaltic pump to generate pressure in the pipeline of the accommodating tube.

[0107] The above embodiments mainly describe the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A closed process automatic dispensing device, comprising a dispensing component, characterized in that: The dispensing component includes a dispensing device and a needle seal; the dispensing device has a dispensing component and an air pressure balance component, the dispensing component is equipped with a liquid channel puncture needle, and a liquid storage chamber connected to the rear end of the liquid channel puncture needle; the air pressure balance component is equipped with an airway puncture needle, and an air storage chamber connected to the rear end of the airway puncture needle.

2. The automatic dispensing device according to claim 1, characterized in that: The needle seal is used to seal the needle of the liquid channel puncture needle in the dispensing component, or is used to seal the needles of the liquid channel puncture needle in the dispensing component and the airway puncture needle in the air pressure balance component at the same time.

3. An automatic dispensing method using the automatic dispensing device as claimed in claim 1 or 2, comprising at least the following steps: S100, controlling the automatic dispensing equipment to drive the needle sealing part to dock with the mouth of the drug container; S200, driving the dispenser to move toward the drug container until the needles of the liquid channel puncture needle and the airway puncture needle pierce the needle sealing member and the bottle mouth of the drug container and enter the drug container; S300, driving the dispenser to extract liquid medicine from the medicine container, or driving the dispenser to inject liquid medicine into the medicine container; S400, driving the dispenser to move in a direction away from the medicine container until the needles of the liquid channel puncture needle and the airway puncture needle are pulled out from the inside of the medicine container and the bottle mouth of the medicine container in turn, and are sealed in the needle sealing member again.

4. The automatic dispensing device according to claim 1, characterized in that: The medicine dispensing component and the air pressure balancing component are independent of each other.

5. The automatic dispensing device according to claim 4, characterized in that: The dispensing component is the first syringe, and the air pressure balance component is the second syringe; the needle sealing component includes a first sealing component and a second sealing component; in an initial state, the first sealing component 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 component is arranged at the front end of the needle tube of the second syringe in a manner of wrapping and sealing the needle port.

6. The automatic dispensing device according to claim 5, characterized in that: The liquid channel puncture needle and the airway puncture needle are respectively connected to the first syringe and the second syringe; the first piston rod is slidably arranged in the inner cavity of the first syringe, and the first piston rod and the first syringe cooperate to form a liquid volume cavity that forms a pressure difference through volume change; The second piston rod is slidably disposed in the inner cavity of the second injection cylinder. The second piston rod and the second injection cylinder cooperate to form an air volume cavity that forms a pressure difference through volume change.

7. The automatic dispensing device according to claim 4, characterized in that: The liquid channel puncture needle is the first needle tube, and the airway puncture needle is the second needle tube. The rear end of the first needle tube is connected to the front end of the first accommodating tube, and the rear end of the first accommodating tube is connected to the liquid storage chamber. 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 chamber and the air bag serve as the liquid accommodating chamber and the air accommodating chamber respectively, and the first accommodating tube and the second accommodating tube are connecting components.

8. The automatic dispensing device according to claim 1, characterized in that: The medicine dispensing component and the air pressure balancing component are integrated.

9. The automatic dispensing device according to claim 8, characterized in that: The dispenser comprises a first needle tube, a second needle tube, a first needle seat, a first syringe and a second syringe; 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 and the second syringe, two independent channels are arranged in the first needle seat, the first needle tube is connected to the first syringe through the first channel, and the second needle tube is connected to the second syringe through the second channel; the first needle tube and the first syringe connected through the needle seat constitute a dispensing assembly, and the first needle tube is a liquid channel puncture needle; the second needle tube and the second syringe connected through the needle seat constitute an air pressure balance assembly, and the second needle tube is an airway puncture needle.

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

11. The automatic dispensing device according to claim 9, characterized in that: The first injection cylinder and the second injection cylinder are fixedly connected to each other and are detachable; Preferably, the first needle seat is provided with a first channel and a second channel inside, an air window is provided on the side, and a cavity for connecting and fixing with the connector on the first syringe is provided at the end; the end of the first channel is connected with the cavity, and the end of the second channel is connected with the air window; a sealing plug is provided 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; when the first syringe and the second syringe are fixedly connected, the puncture needle at the front end of the second syringe pierces the sealing plug in the air window of the first needle seat and is connected 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 automatic dispensing device according to claim 11, characterized in that: A pass-stop module for controlling the penetration or isolation 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; Preferably, the on-off module is a rotatable on-off valve with a through hole arranged therein; the on-off valve can be rotated to align or misalign the through hole with the second channel, thereby conveniently achieving the connection or isolation of the channels on both sides.

13. The automatic medicine dispensing device according to claim 11, characterized in that: The first needle seat is radially provided with a protrusion on one side close to the second channel, and the air window is provided at the end of the protrusion.

14. The automatic dispensing device according to claim 1, characterized in that: The automatic dispensing device includes a pressure generating component; Preferably, the pressure generating component controls the advance and retreat of the push rod in the syringe, thereby causing pressure changes in the liquid chamber and / or the gas chamber; alternatively, when the dispenser is configured as described in claim 7, the pressure generating component is a peristaltic pump, which is driven by the peristaltic pump to generate pressure in the pipeline of the accommodating tube.

15. The automatic dispensing device according to claim 1, characterized in that: The needle sealing member comprises a sleeve device which is sleeved on the outside of the syringe barrel or the first needle seat, the sleeve device comprises a slide groove inside, and the syringe barrel or the needle seat comprises a convex rib which cooperates with the slide groove outside, the convex rib and the slide groove enable the sleeve device to slide axially on the syringe barrel or the needle seat and restrict relative rotation; a sealing device for the fluid channel puncture needle and / or the airway puncture needle to pass through is arranged inside 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 provides support for the sealing device so that the sealing device wraps around the needle of the fluid channel puncture needle and / or the airway puncture needle to seal it, and in the pressurized state, the elastic device is compressed so that the needle passes through the sealing device.

16. The automatic dispensing device according to claim 1, characterized in that: The automatic medicine dispensing equipment also includes a medicine dispensing component moving part, a pressure generating component, and a medicine bottle placing part; wherein, The medicine dispensing component moving part comprises a moving platform and a syringe clamp arranged on the moving platform; The pressure generating component is arranged on the mobile platform; The medicine bottle placement part includes a medicine bottle clamp, which is used to clamp the medicine bottle; there are multiple medicine bottle clamps, which are circumferentially assembled on the movable wheel; the movable wheel is rotatably arranged, and the opening of the medicine bottle clamp is arranged axially toward the movable wheel; a bottle hanging robot and a bottle picking robot are arranged on opposite sides of the movable wheel, both of which can automatically hang the medicine bottle into the medicine bottle clamp or take it away; the movable wheel is provided with a working position corresponding to the mobile platform; preferably, the working position is arranged between the bottle hanging robot and the bottle picking robot.

17. The automatic dispensing device according to claim 16, characterized in that: The dispensing component moving part includes a puncture moving mechanism, which is arranged on a moving platform and can move along a set track on the moving platform; the syringe clamp is fixedly arranged on the puncture moving mechanism; preferably, the pressure generating component is arranged on the puncture moving mechanism.

18. The automatic dispensing device according to claim 16, characterized in that: The bottle hanging robot and the bottle picking robot are provided with scanning devices; the scanning devices scan the information labels on the medicine bottles to obtain the drug information for operation; the medicine bottle clamps have corresponding information labels, and when the medicine bottles are hung, the scanning device of the bottle hanging robot scans the information labels on the medicine bottles and the corresponding medicine bottle clamps and associates the two; when the medicine bottles are taken off, the scanning device of the bottle picking robot scans the information labels on the medicine bottles and the corresponding medicine bottle clamps, and if they are inconsistent with the associated information, an alarm is issued, and if they are consistent, the group of associated information is released and the medicine bottles are removed.

19. The automatic dispensing device according to claim 18, characterized in that: The mobile platform is provided with a second scanning device, which scans the information labels on the medicine bottles and the corresponding medicine bottle clamps. If the information is inconsistent with the associated information, an alarm is issued, and if it is consistent, the medicine dispensing work is carried out.

20. The automatic dispensing device according to claim 16, characterized in that: The automatic medicine dispensing device may further include a component moving mechanism for clamping and fixing the needle sealing member, and the component moving mechanism is movably arranged on the medicine dispensing component moving part.

21. The automatic medicine dispensing device according to claim 16, characterized in that: The automatic dispensing equipment is provided with a self-checking program. The bottle hanging robot grabs the medicine at the designated position according to the set program. Before grabbing, the scanning device of the bottle hanging robot scans the medicine information and checks it with the medicine order information pre-entered into the system. If there is a discrepancy, an alarm is given. If there is a consistency, the dispensing process continues; Preferably, the automatic medication dispensing device is connected to the hospital's prescription system to automatically obtain medication dispensing information prescribed by the doctor for use in the self-examination procedure.

22. The automatic dispensing device according to claim 1, characterized in that: The automatic dispensing device comprises a disinfection device, which can disinfect designated parts and / or positions in the automatic dispensing device according to a set program; preferably, the disinfection is carried out by spraying a disinfectant or irradiating ultraviolet rays.

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