WO2018133329A1

WO2018133329A1 - Filter, handle, and aseptic medicine dispensing system

Info

Publication number: WO2018133329A1
Application number: PCT/CN2017/090319
Authority: WO
Inventors: 张巍; 张劲东
Original assignee: 张巍
Priority date: 2017-01-17
Filing date: 2017-06-27
Publication date: 2018-07-26
Also published as: CN206700982U

Abstract

A filter (8), a handle, and an aseptic medicine dispensing system. The filter (8) comprises an upper housing (81), a lower housing (83), and a filter film (82); the upper housing is provided with several orifices to increase outlet area, providing even, slow, and non-intersecting air flows. A handle having the described filter (8), further comprises a housing, a sealing fastener, a connector, a control unit, and a detection unit. An aseptic medicine dispensing system having the described handle, further comprising a medicine dissolving device and an air source output device, an aseptic medicine dispensing process being accomplished by means of the three's cooperation.

Description

Filter and handle and aseptic dispensing system

Technical field

The invention relates to the field of dispensing equipment, in particular to a filter and a handle and a sterile dispensing system.

Background technique

At present, hospital dispensing mainly relies on manual operation, and most of them are carried out in an open space. Such operations can easily cause various gases and bacteria in the air to enter the drug, causing drug contamination. The most common method for clinical infusion dispensing is manual dispensing. The nurse needs to manually use a syringe to inject the liquid medicine, powder, etc. in the bottle with other liquids, and then inject the mixture into the infusion bottle or the patient. In this process, the nurse continuously operates the dispensing device to perform the work of pumping the liquid, which is labor intensive, inefficient, and more importantly, the traditional dispensing device is easy to bring bacteria into the dispensing system due to exposure to the air. Moreover, the dispensing device has poor airtightness and cannot achieve a sterile effect, which is likely to cause contamination of the drug.

In view of the above drawbacks, the creators of the present invention have finally obtained the present invention after a long period of research and practice.

Summary of the invention

It is an object of the present invention to provide a filter and handle and an aseptic dispensing system that overcomes the above-discussed deficiencies.

In order to solve the above technical deficiencies, the technical solution adopted by the present invention is to provide a filter including an upper case, a lower case, and a filter film, the upper case is fixedly connected to the lower case, and the filter film is disposed at the In the cavity between the lower case and the upper case, the upper case is provided with a plurality of small holes for increasing the outgas area and providing a uniform, slow, non-intersecting gas.

Preferably, the lower shell and the upper shell are provided with reinforcing ribs for improving the overall strength and clamping the filter membrane.

Preferably, the upper shell surface is flat to avoid eddy currents and dead angles to ensure a sterile environment.

Preferably, the filter further includes a positioning member disposed between the lower case and the upper case for clamping the filter film.

Preferably, the method further includes a housing, a sealing fixture and a connecting member, the sealing fixture being disposed inside the housing and sealingly and fixedly connected with the filter for ensuring an internal air passage of the handle Airtight; the connecting member is connected at one end to the filter in the housing, and the other end is connected to the air tube outside the housing.

Preferably, the housing comprises a housing and a control unit, and the control unit is disposed on the housing for controlling the air source output device to blow and pump air to the handle.

Preferably, it further comprises a detecting unit disposed on the outer casing for detecting position information of the mounting solvent and transmitting to the air source output device.

Preferably, the connecting member is a quick connector for facilitating quick insertion and removal and ensuring airtightness at the joint.

Preferably, it further comprises a solvent dissolver and a gas source output device, wherein the handle is connected to the gas source output device through a power line and a gas pipe, and the drug dissolver is detachably mounted on the handle.

Preferably, the solvent dissolver is provided with a strip for matching the detecting unit on the handle to complete the position detection of the solvent dissolver.

Compared with the prior art, the invention has the beneficial effects that the invention provides a filter and a handle and a sterile dispensing system, and the filter structure of the invention is simple and reasonable, the filtering is efficient, and the device can provide uniform, slow, non-crossing, Large area of clean air, replacing the front end of the filter with a clean and sterile environment to achieve a local level of cleanliness; the handle with the above filter of the invention has good sealing performance, easy disassembly and assembly, convenient replacement, and the ability to filter The front end is replaced by a clean and sterile environment, and is safe and reliable; the aseptic dispensing system with the above handle of the invention further comprises a solvent dissolver and a gas source output device, and the aseptic preparation is completed by the cooperation of the three, the filtration efficiency is high, and the filtration is high. The process is safe, sterilized, and the filtering effect is good, the labor intensity is reduced, and the applicability is wide.

DRAWINGS

1 is a schematic structural view of a filter according to Embodiment 1 of the present invention;

2 is a schematic exploded view of a handle according to a third embodiment of the present invention;

3 is a schematic exploded view of a handle according to Embodiment 4 of the present invention;

4 is a schematic view showing the assembly structure of the sealing fixture and the filter of the fifth embodiment;

5 is a schematic exploded view of a handle according to Embodiment 7 of the present invention;

Figure 6 is a schematic view showing the structure of an aseptic dispensing system of the present invention;

Fig. 7 is a schematic view showing the flow of gas in the gas source output device of the aseptic dispensing system of the present embodiment.

detailed description

The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

Embodiment 1

As shown in FIG. 1 , a schematic structural view of a filter provided by the present invention includes a top case, a lower case and a filter film 82. The upper case is fixedly connected to the lower case, and the filter film 82 is disposed on the lower case and Inside the cavity between the upper shells. The upper and lower casings are also referred to as a filter upper casing 81 and a filter lower casing 83.

The filter lower case 83 has a tapered shape, and a reinforcing rib is evenly disposed on the inner wall thereof for improving the strength of the filter lower case 83. And the filter upper case 81 cooperates to hold the filter film 82, and the clean air enters through the small opening of the tapered filter lower case 83.

The filtering upper casing 81 is a circular buckle structure matched with the large opening of the filtering lower casing 83, and is fastened to the filtering lower casing 83; the filtering upper casing 81 is provided with a certain number of small diameter holes as the air outlet, which can make The airflow area is increased, and the air outlets are evenly distributed, which can provide a large area of clean gas which is relatively slow, uniform, non-intersecting, and free of turbulence and no turbulence. The diameter of the upper shell of the filter is 2.5 cm, which can produce a gas with a diameter of 2.5 cm. The beam is used to replace the front end of the gas outlet with a clean environment to achieve a local aseptic effect; the surface of the filter upper shell 81 is flat, that is, the upper shell 81 is filtered, and the surfaces except the gas outlet holes are all in the same plane, and there is no convexity. Lifting or grooved to avoid eddy currents and dead angles, to prevent adhesion by contaminants, thereby ensuring a sterile environment; the filter upper casing 81 is provided with reinforcing ribs on the side of the filter lower casing 83 for improving the strength of the filtering upper casing 81, and The filter case 82 is clamped to cooperate with the filter case 83. The arrangement of the reinforcing ribs on the filter improves the overall strength, and also clamps the intermediate filter film 82 to prevent the film from being broken and improves the filtration efficiency. The number of the reinforcing ribs of the filter upper case 81 is two, and one or more may be provided. The number of the reinforcing ribs of the lower filter case 83 is six, and of course, less or more than six may be provided, and different numbers may be flexibly set. Reinforce the ribs to meet different requirements under different designs. In this embodiment, the reinforcing ribs on the filtering upper casing 81 and the filtering lower casing 83 are all in a single shape. Of course, other shapes with a curvature or an angle may also be used, that is, the shape of the reinforcing ribs may also be specifically determined according to actual needs. set up.

The filter membrane 82 is disposed between the filter upper shell 81 and the filter lower shell 83. The filter membrane 82 of the present invention adopts a 0.24 mm pore size polytetrafluoroethylene filter membrane, which is generally used and low in cost, and has a pore size. The size is the threshold for sterile filtration and works well for filtering gases.

When blowing the filter, the lower casing 83 is filtered as an air inlet, and the upper casing 81 is filtered as an air outlet. The gas enters from the small opening of the lower casing 83 and is filtered by the filtration membrane 82 to become a clean gas. The small holes of the shell 81 are blown out, and the gas bundle blown from the filter upper shell 81 can be up to 2.5 cm in diameter, the gas output area is increased, and the air flow is slow, uniform, and does not cross each other, and there is no turbulent flow and no turbulence, which can be filtered. The area at the front end of the upper casing 81 is replaced with a clean and sterile environment to achieve a local level of cleanliness.

The filter structure of the invention is simple and reasonable, and the filter upper casing 81 adopts a circular buckle cover with small holes, which reduces the resistance of the gas flowing through the filter, and can provide uniform, slow, non-crossing and large area. Clean air, to achieve the local clean and sterile effect at the front end of the filter, and the filtration efficiency is high and the effect is good.

Embodiment 2

The filter of this embodiment is different from the first embodiment in that the filter of the embodiment further includes a positioning member. The positioning member is disposed between the filter upper case 81 and the filter lower case 83 for holding the filter film 82.

The positioning member of the embodiment is a circular structure having the same diameter as the filter film 82. The surface of the positioning member is provided with an air outlet hole corresponding to the filter upper case 81, and is disposed between the filter upper case 81 and the filter lower case 83. The cavity is disposed coaxially with the filter film 82, and its thickness is adapted to the cavity margin between the filter upper case 81 and the filter lower case 83 to serve as a clamping function for the filter film 82. After the positioning member is set, when the filter is blown, the lower casing 83 is filtered as an air inlet, and the upper casing 81 is filtered as an air outlet. The gas enters from the small opening of the filtering lower casing 83, and the gas passes through the filtering film 82 through the positioning member. After being filtered by the filtration membrane 82, it becomes a clean gas, and is blown out from each small hole of the filtration upper casing 81, and the diameter of the gas bundle blown from the filtration upper casing 81 can be up to 2.5 cm, the gas output area is increased, and the gas flow is slow and uniform. They do not cross each other, and there is no turbulent flow, and the area of the front end of the filter upper casing 81 can be replaced with a clean and sterile environment to achieve a local level of cleanliness.

By increasing the positioning member to clamp and fix the filter film 82, it is possible to prevent the filter film 82 from being displaced or bent due to the action of the air source, thereby losing the function of filtering the gas, in the cavity formed by the filter upper case 81 and the filter lower case 83. Produces pollution while increasing the life of the filter.

Embodiment 3

As shown in FIG. 2 , it is a schematic exploded view of a handle of the present embodiment. The handle of the embodiment includes the filter 8 of the first embodiment or the second embodiment, and further includes a housing, a sealing fixture and a connection. Pieces. The sealing fixture is disposed inside the casing and is sealingly and fixedly connected with the filter for ensuring the airtightness of the air passage inside the handle; one end of the connecting member is connected to the filter in the casing, and the other end is connected to the air pipe outside the casing.

The housing includes a housing and a control unit, and the control unit is disposed on the housing for controlling the air source output device to blow and pump air to the handle. The outer cover includes an upper cover, a cover 2 and a bottom case 3. The cover 2 and the bottom case 3 are connected by a lock to facilitate disassembly; the upper cover is disposed on the inner side of the front end of the bottom case 3, and the two are used as a front end part of the handle for Fixing the drug dissolver, the front end part of the handle is protruding for the user to hold, and the protruding form can be designed differently according to the optimal effect of the actual situation to obtain a better user experience; the outer side of the upper cover and the inner side of the bottom case 3 The arc is the same, the inner arc of the upper cover is the same as the outer arc of the solvent dissolver, so that when the solvent dissolver is installed, the solvent dissolver and the inner side of the upper cover can be completely fitted, so that the solvent dissolver and the handle are more stable, and air leakage is avoided. Airtight; the upper cover is provided with a groove, and when the solvent dissolver is mounted on the handle, the side flap of the solvent dissolver is stuck in the groove, and the solvent dissolver and the handle are coaxial, and then the drug is dissolved. The device is rotated 90 degrees, and the solvent dissolver is engaged with the handle. The control unit is a button, and the button is disposed on the bottom case 3, and the number of the buttons is at least two, and is used for controlling the airway output device to blow and pump air to the handle.

The seal fixture includes a filter head 5, a movable plug 6 and a filter tail 9. The movable plug 6 is engaged with the filter upper casing 81 of the filter, the shape of the filter tail 9 is adapted to the filter 8, and the filter is set in the filter In the tail 9 of the machine, the filter head 5 is directly buckled on the tail 9 of the filter. When the solvent dissolver is mounted on the handle, when the tail of the dissolver reaches the position of the filter head 5, the tail of the dissolver is fixed to the movable plug 6, the dissolver is rotated 90 degrees, and the tail of the dissolver is The movable plug 6 rotates, and the movable plug 6 does not rotate together with the tail of the dissolver to complete the installation and fixation of the dissolver and the handle.

The connecting piece is a double-headed gas pipe joint 10, one end of the double-headed gas pipe joint 10 is connected to the filter through the connecting filter tail 9 and the other end is connected to the closed gas pipe, and the double-headed gas pipe joint 10 is a quick joint, which has the advantages of being easy to insert and remove, and sealed. Good sex.

The handle of the embodiment is connected by a gas pipe and a power line and a gas source output device, and before the solvent dissolver is installed to the handle of the embodiment, the gas source output device supplies a small power source to the handle, and the small power source enters the filter through the gas pipe. The lower casing 83 is filtered through the filtration membrane 82 to obtain a clean and sterile gas. The filtered gas is filtered through the upper casing 81 and blown out from the small pores of the filtration upper casing 81 to obtain a uniform, slow, non-crossing, large area. The clean air can replace the area of the front end of the filter upper casing 81 into a clean and sterile environment to achieve a local level of cleanliness; when the solvent dissolver is mounted to the handle, the front end of the handle is kept for a small power source, and the handle is held. Replace the front end area with a clean and sterile environment, attach the solvent dissolver to the inside of the front end of the handle, hold the squeeze solvent applicator against the handle, and push it toward the filter. When propelling to the position near the front end of the handle, stay 1- Continue to push the solvent dispenser after 2 seconds to ensure that the small power source blows the end of the solvent to the sterility until the groove at the front end of the handle, the movable plug in the filter head of the solvent dissolver and the seal holder 6 fixing, rotating the solvent dissolver, fixing the solvent dissolver on the handle, stopping supplying a small power source to the handle at this time, and controlling the airway output device to blow and pump air to the handle by the button to perform Dispensing.

Embodiment 4

As shown in FIG. 3 , which is a schematic structural view of a handle of the present embodiment, a handle of the embodiment is different from the third embodiment in that the seal fixing member of the handle of the embodiment further includes an O-ring. 7. An O-ring 7 is provided between the filter and the movable plug 6 for preventing hard grinding and for buffering.

The movable plug 6 is fastened on the filter upper casing 81 of the filter, and an O-ring 7 is disposed between the movable plug 6 and the filter. The intermediate diameter of the O-ring 7 is consistent with the solvent dissolver and is set to 2 cm. Used to prevent hard grinding and buffering, thereby increasing the service life of the movable plug 6,

Embodiment 5

As shown in FIG. 4 , a schematic view of the assembly structure of the seal fixing member and the filter of the present embodiment, the handle of the present embodiment is different from the fourth embodiment in the sealed seal fixing member of the embodiment. Filter The machine head 5 is directly snapped onto the filter tail 9 so that the filter head 5, the movable plug 6, the O-ring 7, the filter and the filter tail 9 are assembled to be integrated, disassembled and replaced. Air circuit components.

The fixed connection of the filter head 5 and the filter tail 9 is a snap connection, which has achieved a fast and stable fixed connection and ensures airtightness. Of course, the connection between the filter head 5 and the filter can also be Plug and unplug connections, threaded connections, and more.

The sealing fixture and the filter are assembled into a pneumatic circuit assembly that can be disassembled and replaced integrally. The components of the pneumatic circuit assembly can be assembled separately and assembled, and assembled into an integrated replacement piece. The replacement frequency is once a day. This allows for quick installation and removal of the pneumatic components to ensure a sterile environment and air tightness, and to increase work efficiency and simplify work steps.

Embodiment 6

A handle of this embodiment is different from the third embodiment in that the movable plug 6 in the seal fixing member of the present embodiment is buckled on the filter. When the solvent dissolver is mounted on the handle, when the tail of the dissolver reaches the position of the filter head 5, the tail of the dissolver is fixed to the movable plug 6, and the dissolver is rotated by 90 degrees, and the movable plug 6 follows The tail of the solvent dissolves together to better seal the tail of the dissolver with the sealing fixture in the handle, further enhancing the airtightness.

Example 7

As shown in FIG. 5, a schematic diagram of an exploded structure of a handle of the present embodiment is different from the third embodiment in that the handle of the embodiment further includes a detecting unit. The detecting unit is disposed on the outer casing for detecting position information of the installed solvent dissolver and transmitting the information to the air source output device.

The detecting unit comprises a light transmitting lens 11 and a photoelectric sensor, and the light transmitting lens 11 is disposed at a position on the upper cover at a distance from the air path component for causing the photoelectric sensor located inside thereof to read the strip disposed at the corresponding position of the solvent dissolver. With information, the distance from the strip on the solvent applicator to the rear end of the drug dissolver is the same as the distance between the light-transmitting lens 11 and the air path component. After the solvent applicator is mounted on the handle, the strip on the drug dissolver is covered. The light transmissive lens 11 triggers the photoelectric sensor, and the photoelectric sensor sends a signal to the control gas path output device, and the control gas path output device stops supplying the small power gas source. The setting of the detecting unit can accurately detect whether the solvent dissolver is installed to the designated position, determine the relevant solenoid valve in the gas source output device after the solvent dissolver is installed to the designated position, and stop providing small power to the handle. The gas source began to supply a large power source, which simplifies the work steps, speeds up the dispensing process, and improves work efficiency.

Example eight

As shown in Fig. 6, which is a schematic view of the structure of an aseptic dispensing system of the present invention, the aseptic dispensing system of the present invention comprises the handle of the above embodiment, which further comprises a solvent dissolver and a gas source output device. The handle is connected to the air source output device through a power line and a gas pipe, and the solvent dissolver is detachably mounted on the handle. The gas source output device delivers clean air to the solvent dissolver through the handle to drive the melter rubber plug movement, and the filter in the handle purifies the air from the gas source output device to ensure injection into the solvent dissolver. It is clean and sterile air.

The drug dissolver has a needle, a cylinder and a rubber plug, the rubber plug is disposed inside the cylinder, and the strip is provided with a strip for use with the detecting unit in the handle to detect whether the solvent is already It is mounted on the handle, wherein the strip is designed in a semicircular shape on the melter, or may be a circular surround melter, or may be a semicircular strip, a corrugated strip or the like. When the solvent dissolver is not in use, that is, in the initial position, the end of the dissolver is kept in the same plane as the rubber plug, and there is no dead angle to ensure that the small power source can blow the end of the dissolver and the rubber plug to the sterilized, and then Ensure that the solvent chamber is clean and sterile when in use.

As shown in FIG. 7 , a schematic diagram of the gas flow in the gas source output device of the aseptic dispensing system of the present embodiment, the main working pump 21 is always in the working state, and when the second electromagnetic valve 13 and the third electromagnetic valve 14 are both When the state is off, the air flows along the intermediate effect filter, B1, B2, the air inlet, the air outlet, A2, A1, and the purifying pump extracts the air in the upper tank, and the first solenoid valve controls the connection in the pipeline with the purifying pump. Air flow, air is output through the three-way, and finally output from the output port 16, the output air is a smooth, gentle small flow of clean air, that is, a small power source; when the second solenoid valve is opened, the air along the intermediate effect filter , B1, B2, air inlet, air outlet, A2, A3, C2, C3 flow, and finally output from the output port 16, the output is a large flow of clean air, can be used as a power source, that is, a large power source; When the third solenoid valve 14 is opened, air is input from the output port 16, and flows along C3, C2, B3, B2, the air inlet, the air outlet, A2, and A1, and the air is pumped to the air source output device, filtered and transported to the upper portion. Inside the cabinet and drain it when neededThe main working pump 21 and the purifying sub-device, as two different gas source output terminals, can provide a small flow, smooth clean air, and can provide a large flow, clean air that can be used as a power source, and the user can It is very practical for its selection. In addition, it can be replaced separately when it is renewed, it is convenient and effective to use, and it is not too expensive.

After the drug dissolver is mounted on the handle, the dispensing of the sterile dispensing system begins, and the air from the main working pump acts as the power for the rubber plug movement in the drug dissolver. In actual operation, the operator holds the handle and controls the operation through the relevant buttons on the handle. The handle is provided with at least two buttons for controlling the forward and reverse buttons of the rubber plug, which are respectively used for controlling the opening and closing of the second solenoid valve 13 and the third solenoid valve 14. When the button for controlling the advancement of the rubber stopper is pressed, the second electromagnetic valve 13 is opened, and the air flows along the intermediate effect filter, B1, B2, the air inlet, the air outlet, A2, A3, C2, C3, and the air is output from the air source. After the device is output, via the handle and the handle a high-efficiency filter, injecting a solvent dissolver, pushing the rubber plug forward, pushing the liquid medicine in the solvent dissolver, the front end of the rubber plug is clean and sterile air, and the rear end is also sterile air; when pressed When the button of the rubber back is controlled, the third electromagnetic valve 14 is opened, and the air is sucked from the outside of the air source output device, and enters the air source output device via the handle and the high efficiency filter in the handle, and along the C3, C2. B3, B2, air inlet, air outlet, A2, A1 flow. At this time, a negative pressure zone is formed at the tail of the drug dissolver to attract the rubber stopper to be withdrawn, and the drug solution in the vial can be drawn into the drug dissolver. Repeat this several times using the button to control the rubber stopper to repeat the movement until the solution is dissolved.

Through the gas source output device and the displacement of the filter to the air at the front end of the handle, the aseptic dispensing system can ensure that the aseptic environment is always maintained in the cavity of the drug dissolver during the entire dispensing process, thereby greatly ensuring the patient. The medication is safe.

Example nine

As shown in the figure, which is a schematic flow diagram of an aseptic dispensing method for use in the present invention, the aseptic dispensing step of the present invention comprises:

Step S6: inserting the needle of the solvent dissolver into the medicine bottle, controlling the rubber stopper in the solvent dissolver to move away from the needle, and pumping the liquid medicine in the medicine bottle into the solvent dissolver And withdrawing the needle;

Step S7: inserting the needle of the solvent into a new vial, and if the new vial is a medicinal solution, controlling the rubber stopper in the medicinal device to move away from the needle, The liquid medicine in the medicine bottle is drawn into the solvent dissolver and the needle is withdrawn; if the new medicine bottle is a powder, the rubber plug is controlled to move in a direction close to the needle, and the liquid medicine is Push the vial and mix it out;

Step S8: The previous step is repeated until the liquid medicines in all the vials are drawn into the drug dissolver.

In the aseptic dispensing method of the present embodiment, the rubber stopper in the solvent dissolver is spaced apart from the front end of the cartridge body to counter the negative pressure in the bottle. The handle control air source output device extracts the air at the rear end of the rubber plug in the cylinder body to form a negative pressure environment, so that the rubber plug moves away from the needle; the handle controls the air source output device to output air to the rubber plug rear end of the cylinder body, Form a positive pressure environment and move the rubber plug in a direction close to the needle. During the operation, it is necessary to ensure that the solvent dissolver is in a polluted environment, and the rubber plug is not moved away from the needle, that is, air is not sucked into the front cavity of the solvent dissolver to ensure that the bacteria gas cannot enter the front cavity of the dissolver. In addition, it is ensured that the drug solution is not contaminated during dispensing.

Example ten

As shown in the figure, the present embodiment is different from the ninth embodiment in that it further includes steps before the step S6. Step S5: mounting the solvent dissolver on the handle.

Before the step S5, the method includes:

Step S1: the gas source output device outputs a small power source to the handle, and the small power source passes through the filter in the handle, and replaces the front end region of the handle with a clean and sterile environment;

Step S2: attaching the solvent dissolver to the inner side of the front end of the handle and pushing it backward until the rear end of the solvent dissolver enters the aseptic environment at the front end of the handle;

Step S3: the solvent dissolver is installed backward on the handle, and the air source output device is controlled to stop providing a small power source to the handle.

In step S1, the rubber stopper in the solvent dissolver is located at the end of the solvent dissolver, and the end of the solvent dissolver is in the same plane as the rubber plug to ensure that the small power gas source can end the solvent dissolver The rubber stopper is sterilized, thereby ensuring that the medicinal device is clean and sterilized when it is in use.

In step S2, after the back end of the solvent enters the aseptic environment at the front end of the handle, the installation is continued for 1-2 seconds, and then the installation is continued to ensure that the small power source blows the back end of the solvent to the sterility. Clean and sterile environment at the back end of the dissolver and the front end of the handle.

In step S3, when the solvent dissolver is pushed to the groove position of the front end of the handle, the solvent dissolver is inserted into the front end groove of the handle, and the solvent dissolver is rotated to achieve the The solvent dissolver is engaged with the handle. The snap-on installation is quick and sealed.

The invention provides a filter and a handle and an aseptic dispensing system. The filter structure of the invention is simple and reasonable in structure, high in filtering, and can provide uniform, slow, non-crossing, large area of clean air, and replace the filter front end with The clean and sterile environment reaches a local level of cleanliness; the handle with the above filter of the invention has good sealing property, easy disassembly and assembly, and is convenient to replace, and can replace the filter front end with a clean and sterile environment, and is safe and reliable; The aseptic dispensing system with the above handle of the invention further comprises a solvent dissolver and a gas source output device, and the aseptic preparation is completed by the cooperation of the three, the filtering efficiency is high, the filtering process is safe and sterile, the filtering effect is good, and the filtering is reduced. Labor intensity, wide applicability.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art may still modify the technical solutions described in the foregoing embodiments, or equivalently replace some of the technical features. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

A filter comprising an upper casing, a lower casing and a filter membrane, the upper casing being fixedly coupled to the lower casing, the filtration membrane being disposed in a cavity between the lower casing and the upper casing, The utility model is characterized in that the upper shell is provided with a plurality of small holes for increasing the outlet area and providing a uniform, slow and non-intersecting gas.
A filter according to claim 1, wherein reinforcing members are provided in said lower casing and said upper casing for improving the overall strength and clamping said filter membrane.
A filter according to claim 2 wherein said upper shell surface is planar for avoiding turbulence and dead space to ensure a sterile environment.
A filter according to claim 3, wherein said filter further comprises a positioning member disposed between said lower case and said upper case for holding said filter film .
A handle having the filter according to any one of claims 1 to 4, further comprising a housing, a sealing fixture and a connecting member, the sealing fixture being disposed inside the housing and The filter is sealingly fixedly connected to ensure airtightness of the internal air passage of the handle; the connecting member is connected at one end to the filter in the housing, and the other end is connected to the air tube outside the housing.
A handle according to claim 5, wherein said housing comprises a housing and a control unit, said control unit being disposed on said housing for controlling the air source output device to blow air to said handle and Pumping.
A handle according to any one of claims 5 or 6, further comprising a detecting unit, said detecting unit being disposed on said outer casing for detecting position information of the mounting solvent and transmitting to The gas source output device.
A handle according to any one of claims 5, 6 or 7, wherein the connecting member is a quick connector for facilitating quick insertion and removal and ensuring airtightness at the joint.
An aseptic dispensing system having a handle according to any of claims 5-8, further comprising a drug dissolver and a gas source output device, said handle being output through said power cord and gas pipe and said gas source The device is connected, and the drug dissolver is detachably mounted on the handle.
An aseptic dispensing system according to claim 9 wherein said dissolution A strip is disposed on the drug device, and the strip is used to cooperate with a detecting unit on the handle to complete position detection of the solvent dissolver.