CN111991230A - Air filter of dispensing machine - Google Patents
Air filter of dispensing machine Download PDFInfo
- Publication number
- CN111991230A CN111991230A CN202010896363.3A CN202010896363A CN111991230A CN 111991230 A CN111991230 A CN 111991230A CN 202010896363 A CN202010896363 A CN 202010896363A CN 111991230 A CN111991230 A CN 111991230A
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- China
- Prior art keywords
- assembly cavity
- channel
- gas
- pressure
- air passing
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- 239000003814 drug Substances 0.000 claims abstract description 77
- 239000012528 membrane Substances 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims description 28
- 229940079593 drug Drugs 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000005086 pumping Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2079—Filtering means
- A61J1/2082—Filtering means for gas filtration
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an air filter of a dispensing machine, which comprises a first air passing piece and a second air passing piece which are detachably connected together and form an assembly cavity, wherein the first air passing piece and the second air passing piece are respectively communicated with the outside through a first communicating channel and a second communicating channel which are arranged on respective bodies, a filtering membrane is movably assembled in the assembly cavity, and a first pressure relief channel and a second pressure relief channel which are used for balancing the pressure of a medicine dissolving device are respectively constructed on the end walls of the two air passing pieces which form the assembly cavity. The invention solves the problem that the piston in the medicine dissolving device cannot be driven to move due to large front-back pressure difference of the filtering membrane, so that the pumping of the liquid medicine cannot be completed, and simultaneously realizes the purpose of reducing the investment cost. The invention is suitable for the technical field of medicine dispensing of medical personnel.
Description
Technical Field
The invention belongs to the technical field of medicine dispensing of medical personnel, and particularly relates to an air filter of a medicine dispensing machine.
Background
At present, in the process of dispensing, in order to improve the cleanness degree, a primary air filter is installed in a pneumatic dispensing machine, a secondary air filter is installed on an operating handle, and the position of a filter membrane of the secondary air filter is fixed and cannot be displaced or deformed, so that on one hand, when the pressure difference between the front and the back of the filter membrane is large (generally, back pressure), a piston in a medicine dissolving device cannot be driven to move, and the pumping of liquid medicine cannot be completed; on the other hand, because the secondary air filter is difficult to disassemble, when the filtering membrane is dirty, the installation specification requires to be integrally replaced, so that the input cost is greatly increased.
Disclosure of Invention
The invention provides an air filter of a dispensing machine, which is used for solving the problem that liquid medicine cannot be pumped due to the fact that a piston in a medicine dissolving device cannot be driven to move because the pressure difference between the front and the back of a filtering membrane is large, and the aim of reducing the input cost is fulfilled.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an air filter of a dispensing machine comprises a first air passing piece and a second air passing piece which are detachably connected together and form an assembly cavity, wherein the first air passing piece and the second air passing piece are respectively communicated with the outside through a first communicating channel and a second communicating channel which are arranged on respective bodies; when gas enters the assembly cavity from the first communicating channel, the filtering membrane is attached to the second pressure relief channel and the second communicating channel, and the gas filtered by the filtering membrane enters the medicine dissolving device through the second communicating channel; when gas enters the assembly cavity from the first communication channel and the pressure in the drug dissolver is smaller than the pressure in the assembly cavity or is vacuum, the filter membrane deforms and is attached to the second communication channel, and meanwhile, the second pressure relief channel communicates the drug dissolver with the assembly cavity; when gas is pumped out of the assembly cavity through the first communicating channel, the filtering membrane is attached to the first pressure relief channel and the first communicating channel, and the gas filtered by the filtering membrane is pumped out of the medicine dissolver through the first communicating channel; when the gas is pumped out of the assembly cavity through the first communication channel and the pressure in the medicine dissolver is greater than the pressure in the assembly cavity; the filtering membrane deforms and is attached to the first communication channel, and meanwhile the drug dissolver is communicated with the assembly cavity through the first pressure relief channel.
Further, the first air passing part comprises a first body with a first connecting part, the first connecting part is connected with the second air passing part, and a joint pipe communicated with the first communication channel is constructed on the first body.
Furthermore, the first body is of a shell-shaped structure, and a reinforcing connecting piece is constructed between the joint pipe and the shell-shaped structure.
Furthermore, the reinforced connecting piece comprises a sleeve body which is constructed on the shell structure and is used for sleeving the joint pipe in the shell structure, and a plurality of reinforcing plates are constructed between the sleeve body and the joint pipe.
Further, first communicating channel is close to a plurality of concentric annuluses on the terminal surface of assembly chamber including constructing in first body, just a plurality of annuluses communicate each other and communicate in the adapter tube through a plurality of slots, and the annular outside that just is located the outer lane on first body is constructed with first annular protruding, filtration membrane separates annular groove and assembly chamber with the protruding cooperation of first annular.
Furthermore, the second air passing part comprises a second body with a second connecting part, the second connecting part is connected with the first air passing part, and a plurality of air holes communicated with the assembling cavity through a second communicating channel are formed in the second body.
Furthermore, the second communicating channel comprises a plurality of plate-shaped bodies which are uniformly constructed on the end face of the second body close to one end of the assembly cavity, a second annular bulge which surrounds the plate-shaped bodies and the air holes in the second body is constructed on the second body, and the filtering membrane is matched with the second annular bulge and separates the plate-shaped bodies from the assembly cavity.
Furthermore, an assembling lug is formed on the second body, and the first air passing piece is abutted against the assembling lug through the connection of the second connecting part.
Further, an installation groove is formed in the end portion, far away from the assembly cavity, of the second body.
Furthermore, the first air passing part and the second air passing part are made of metal or plastic materials.
Due to the adoption of the structure, compared with the prior art, the invention has the technical progress that: the filter membrane is movably assembled in an assembly cavity formed by a first air passing piece and a second air passing piece; during the pumping process of the medicine liquid, the filtering membrane has four actions: firstly, when the liquid medicine in the medicine dissolver is injected into a target medicine bottle or a medicine bag, the pressure difference between the piston of the medicine dissolver and the assembly cavity is small, the filtering membrane is attached to the second pressure relief channel and the second communicating channel, the gas filtered by the filtering membrane enters the medicine dissolver through the second communicating channel, and the piston is pushed to push out the liquid medicine in the medicine dissolver; secondly, when gas is pumped out of the assembly cavity through the first communicating channel, the pressure difference between the piston of the medicine dissolving device and the pressure in the assembly cavity is small, the filtering membrane is attached to the first pressure relief channel and the first communicating channel, and the gas filtered by the filtering membrane is pumped out of the medicine dissolving device through the first communicating channel, so that the piston integrally moves along with the pulling force of the gas, and the medicine dissolving device further pumps the liquid medicine; thirdly, when gas enters the assembly cavity from the first communication channel and the pressure in the drug dissolver is smaller than the pressure in the assembly cavity or is vacuum, the filtering membrane deforms and is attached to the second communication channel, meanwhile, the second pressure relief channel communicates the drug dissolver with the assembly cavity, so that the pressure of the drug dissolver and the pressure of the assembly cavity are balanced or nearly balanced, and then the first action is completed; fourthly, when gas is pumped out of the assembly cavity from the first communication channel and the suction force is not balanced with the pressure in the medicine dissolving device, the filtering membrane deforms and is attached to the first communication channel, meanwhile, the medicine dissolving device is communicated with the assembly cavity through the first pressure relief channel, so that the pressure of the medicine dissolving device and the pressure of the assembly cavity are balanced or nearly balanced, and then the second action is completed; according to the invention, the first air passing part and the second air passing part are detachably connected, so that the filtering membrane can be conveniently and periodically replaced, and the filtering membrane can be replaced according to the use times, thereby avoiding the problems of resource waste and large cost investment caused by the conventional integral replacement; in conclusion, the medicine dissolving device solves the problem that the pumping of the liquid medicine cannot be finished due to the fact that the piston in the medicine dissolving device cannot be driven to move because the front-back pressure difference of the filtering membrane is large, and meanwhile the purpose of reducing the input cost is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic exploded view of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a first air passing member according to an embodiment of the present invention;
FIG. 4 is a schematic view of a first gas passing element at another angle according to an embodiment of the present invention;
FIG. 5 is a bottom view of the first air passing member according to the embodiment of the present invention;
FIG. 6 is a schematic structural view of a second air passing member according to the embodiment of the present invention;
FIG. 7 is a schematic view of a second air passing member at another angle according to an embodiment of the present invention;
FIG. 8 is a top view of a second air passage member according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of an axial configuration of an example microfiltration membrane according to an embodiment of the invention;
FIG. 10 is a cross-sectional view of an axial structure of an embodiment of the present invention;
FIG. 11 is a cross-sectional view of the axial structure of an embodiment of the present invention with gas normally passing through the filter membrane into the drug dissolver;
FIG. 12 is a cross-sectional view of the axial configuration of an embodiment of the present invention with the assembly chamber and the drug dissolver having a large pressure differential as gas enters the assembly chamber;
FIG. 13 is an enlarged view of the structure of portion A of FIG. 12;
FIG. 14 is a cross-sectional view of the axial structure of an embodiment of the present invention with gas normally being drawn through the filter membrane and out of the drug dissolver;
FIG. 15 is a cross-sectional view of the axial configuration of the assembly chamber and the drug dissolver with a large pressure differential therebetween as gas is pumped from the assembly chamber in accordance with an embodiment of the present invention;
fig. 16 is an enlarged view of a portion B in fig. 15.
Labeling components: 100-a first gas passing piece, 101-a first body, 102-a first connecting part, 103-a joint pipe, 104-a gas channel, 105-a first annular bulge, 106-a spacer ring, 107-a ring groove, 108-a groove, 109-a reinforcing plate, 200-a second gas passing piece, 201-a second body, 202-a second connecting part, 203-an assembling lug, 204-a second annular bulge, 205-a gas hole, 206-a plate body, 207-an installing groove, 300-an assembling cavity and 400-a filtering membrane.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
The invention discloses an air filter of a dispensing machine, which comprises a first air passing piece 100 and a second air passing piece 200, wherein the first air passing piece 100 and the second air passing piece 200 are detachably connected with each other, an assembly cavity 300 is formed between the first air passing piece 100 and the second air passing piece 200, the assembly cavity 300 is communicated with the outside through a first communication channel and a second communication channel which are respectively arranged on the bodies of the first air passing piece 100 and the second air passing piece 200, a filter membrane 400 is movably assembled in the assembly cavity 300, and a first pressure relief channel and a second pressure relief channel for balancing the pressure of a medicine dissolver are respectively formed on the end walls of the two air passing pieces 100 and 200 which form the assembly cavity 300. The first air passing part 100 and the second air passing part 200 are made of metal or plastic materials. The working principle and the advantages of the invention are as follows: the filtering membrane 400 of the invention is movably assembled in the assembly cavity 300 formed by the first gas passing piece 100 and the second gas passing piece 200; during the pumping of the liquid medicine, the filtering membrane 400 has four actions: first, as shown in fig. 11, when the liquid medicine in the medicine dissolver is injected into a target medicine bottle or a medicine bag, and the pressure difference between the piston of the medicine dissolver and the pressure in the assembly chamber 300 is small, the filter membrane 400 is attached to the second pressure relief channel and the second communication channel, the gas filtered by the filter membrane 400 enters the medicine dissolver through the second communication channel, and pushes the piston to push out the liquid medicine in the medicine dissolver; secondly, as shown in fig. 14, when gas is pumped out of the assembly cavity 300 through the first communication channel, and the pressure difference between the piston of the drug dissolver and the pressure in the assembly cavity 300 is small, the filter membrane 400 is attached to the first pressure relief channel and the first communication channel, and the gas filtered by the filter membrane 400 is pumped out of the drug dissolver through the first communication channel, so that the piston moves integrally with the pulling force of the gas, and the drug dissolver can further pump the liquid medicine; thirdly, as shown in fig. 12 to 13, when the gas enters the assembly chamber 300 through the first communication channel and the pressure in the drug dissolver is lower than the pressure in the assembly chamber 300 or is a vacuum, the filter membrane 400 deforms and adheres to the second communication channel, and the second pressure release channel communicates the drug dissolver with the assembly chamber 300, so that the pressure of the drug dissolver and the pressure of the assembly chamber 300 are balanced or nearly balanced, and then the first action is completed; fourthly, as shown in fig. 15 to 16, when gas is pumped out of the assembly chamber 300 through the first communication channel and the suction force is not balanced with the pressure in the drug dissolver, the filter membrane 400 is deformed and attached to the first communication channel, and the drug dissolver is communicated with the assembly chamber 300 through the first pressure relief channel, so that the pressure of the drug dissolver and the pressure of the assembly chamber 300 are balanced or nearly balanced, and then the second action is completed; according to the invention, the first gas passing piece 100 and the second gas passing piece 200 are detachably connected, so that the filtering membrane 400 can be conveniently and periodically replaced, and the filtering membrane 400 can be replaced according to the use times, thereby avoiding the problems of resource waste and large cost input caused by the existing integral replacement; in conclusion, the medicine dissolving device solves the problem that the piston in the medicine dissolving device cannot be driven to move due to large front-back pressure difference of the filtering membrane 400, so that the pumping of the liquid medicine cannot be completed, and simultaneously achieves the purpose of reducing the investment cost.
As a preferred embodiment of the present invention, as shown in fig. 3, the first gas passing member 100 includes a first body 101, the first body 101 has a first connection part 102 having a cylindrical shape, an external bolt is formed on a circumferential surface of the first connection part 102, and the first connection part 102 is screwed with the second gas passing member 200, so that the first gas passing member 100 and the second gas passing member 200 are attached and detached and the filter membrane 400 is replaced. In the present embodiment, the first body 101 is provided with a joint tube 103 communicating with the first communicating channel, the hollow part of the joint tube 103 is an air channel 104, and the joint tube 103 is connected with a gas pipe. In order to reduce the weight of the operation handle held by the medical staff and save the input of materials, the first body 101 is a shell-shaped structure, a reinforced connecting piece is constructed between the joint pipe 103 and the shell-shaped structure, the reinforced connecting piece comprises a sleeve body constructed on the shell structure and used for sleeving the joint pipe 103, and a plurality of reinforcing plates 109 are constructed between the sleeve body and the joint pipe 103 to improve the connection strength of the joint pipe 103.
As a preferred embodiment of the present invention, as shown in fig. 4 to 5, the first communicating passage includes a plurality of concentric ring grooves 107 formed on an end surface of the first body 101 near one end of the fitting chamber 300, and the ring grooves 107 communicate with each other and with the joint pipe 103 via a plurality of grooves 108, the adjacent ring grooves 107 forming the spacer rings 106 therebetween, each groove 108 communicating the ring grooves 107 divided by the spacer rings 106 and being formed to extend radially outward from the center of the first body 101. A first annular projection 105 is configured on the first body 101, outside the annular groove 107 of the outermost ring, and the rim of the filter membrane 400 cooperates with the first annular projection 105 and separates the annular groove 107 from the assembly chamber 300. When gas is pumped out of the assembly cavity 300 through the first communication channel and the suction force is not balanced with the pressure in the drug dissolver, the filter membrane 400 deforms, the situation shown in fig. 15-16 can occur, and the situation that the piston cannot move effectively is avoided. The first air passing member 100 of the present embodiment is an integrally formed structure, so that the mass production thereof and the strength of the finished product are effectively guaranteed.
As a preferred embodiment of the present invention, as shown in fig. 6, the second gas passing member 200 includes a second body 201, the second body 201 has a second connecting portion 202, the second body 201 is a sleeve-shaped structure with a circular radial cross section, one end of the sleeve-shaped structure away from the first body 101 is closed, and a plurality of gas holes 205 are uniformly opened at the end, the gas holes 205 are communicated with the assembly cavity 300 through a second communication channel, the second connecting portion 202 is an internal thread formed on an inner wall of the sleeve-shaped structure, and the second connecting portion 202 is in threaded connection with the first gas passing member 100. The second communicating channel of this embodiment includes a plurality of plate-like bodies 206, the plate-like bodies 206 are uniformly configured on the end surface of the second body 201 near one end of the assembly chamber 300, the second body 201 is configured with a second annular protrusion 204 which surrounds both the plate-like body 206 and the air hole 205 therein, and the edge of the filter membrane 400 is engaged with the second annular protrusion 204 and separates the plate-like body 206 from the assembly chamber 300. The second body 201 of the present embodiment is configured with a fitting ear 203, and the first air passing member 100 abuts on the fitting ear 203 by the connection of the second connection portion 202. When gas enters the assembly cavity 300 through the first communication channel and the pressure in the drug dissolver is smaller than the pressure in the assembly cavity 300 or is vacuum, the situation shown in fig. 12-13 can occur, and the filter membrane 400 deforms, so that the pressure of the drug dissolver and the pressure in the assembly cavity 300 are balanced or nearly balanced, and the situation that the piston cannot effectively move is avoided. The second air passing member 200 of the present embodiment is an integrally formed structure, so as to facilitate mass production thereof and ensure the connection strength with the first air passing member 100. The second body 201 of the present embodiment is configured with a mounting groove 207 at an end portion thereof away from the mounting chamber 300 for mounting a connection joint of the drug dissolver.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalent changes may be made to some of the features of the embodiments. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a medicine dispensing machine air cleaner which characterized in that: the filtering membrane is movably assembled in the assembly cavity, and a first pressure relief channel and a second pressure relief channel for balancing the pressure of the drug dissolving device are respectively constructed on the end walls of the two components forming the assembly cavity, which belong to the first gas passing piece and the second gas passing piece; when gas enters the assembly cavity from the first communicating channel, the filtering membrane is attached to the second pressure relief channel and the second communicating channel, and the gas filtered by the filtering membrane enters the drug dissolver through the second communicating channel; when gas enters the assembly cavity from the first communication channel and the pressure in the drug dissolver is smaller than the pressure in the assembly cavity or is vacuum, the filter membrane deforms and is attached to the second communication channel, and meanwhile, the second pressure relief channel communicates the drug dissolver with the assembly cavity; when gas is pumped out of the assembly cavity through the first communicating channel, the filtering membrane is attached to the first pressure relief channel and the first communicating channel, and the gas filtered by the filtering membrane is pumped out of the medicine dissolver through the first communicating channel; when the gas is pumped out of the assembly cavity through the first communication channel and the pressure in the medicine dissolver is greater than the pressure in the assembly cavity; the filtering membrane deforms and is attached to the first communication channel, and meanwhile, the drug dissolving device is communicated with the assembly cavity through the first pressure relief channel.
2. A dispenser air filter according to claim 1, wherein: the first gas passing piece comprises a first body with a first connecting part, the first connecting part is connected with the second gas passing piece, and a joint pipe communicated with the first communication channel is constructed on the first body.
3. A dispenser air filter according to claim 2, wherein: the first body is of a shell-shaped structure, and a reinforcing connecting piece is constructed between the joint pipe and the shell-shaped structure.
4. A dispenser air filter according to claim 3, wherein: the reinforced connecting piece comprises a sleeve body which is constructed on the shell structure and used for sleeving the joint pipe in the shell structure, and a plurality of reinforcing plates are constructed between the sleeve body and the joint pipe.
5. A dispenser air filter according to claim 2, wherein: first communicating channel is close to a plurality of endocentric annuluses on the terminal surface of assembly chamber including constructing in first body, just a plurality of annuluses communicate each other and communicate in the adapter tube through a plurality of slots, and the annular outside that just is located the outer lane on first body is constructed with first annular arch, filtration membrane and the protruding cooperation of first annular and separate annular and assembly chamber.
6. A dispenser air filter according to claim 1, wherein: the second air passing part comprises a second body with a second connecting part, the second connecting part is connected with the first air passing part, and a plurality of air holes communicated with the assembling cavity through a second communicating channel are formed in the second body.
7. A dispenser air filter according to claim 6, wherein: the second communicating channel comprises a plurality of plate-shaped bodies which are uniformly constructed on the end face of the second body close to one end of the assembly cavity, second annular bulges which surround the plate-shaped bodies and the air holes are constructed on the second body, and the filtering membrane is matched with the second annular bulges and separates the plate-shaped bodies from the assembly cavity.
8. A dispenser air filter according to claim 6, wherein: the second body is provided with an assembling lug, and the first air passing piece is abutted against the assembling lug through the connection of the second connecting part.
9. A dispenser air filter according to claim 6, wherein: an installation groove is formed at one end part of the second body far away from the assembly cavity.
10. A dispenser air filter according to claim 1, wherein: the first air passing part and the second air passing part are made of metal or plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896363.3A CN111991230B (en) | 2020-08-31 | 2020-08-31 | Air filter of dispensing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896363.3A CN111991230B (en) | 2020-08-31 | 2020-08-31 | Air filter of dispensing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111991230A true CN111991230A (en) | 2020-11-27 |
| CN111991230B CN111991230B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010896363.3A Active CN111991230B (en) | 2020-08-31 | 2020-08-31 | Air filter of dispensing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN111991230B (en) |
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| CN112043593A (en) * | 2020-08-31 | 2020-12-08 | 石家庄瑞祥电子科技有限公司 | Medical pneumatic medicine dispensing system |
| CN213311735U (en) * | 2020-08-31 | 2021-06-01 | 石家庄瑞祥电子科技有限公司 | Air filter for balancing pressure of dispensing machine |
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| WO2016169917A1 (en) * | 2015-04-20 | 2016-10-27 | Safe | Single-use membrane filter and medical kit comprising such a filter |
| CN106821751A (en) * | 2017-01-17 | 2017-06-13 | 哈尔滨鼓润生物技术有限公司 | A kind of sterile dispensing system and sterile dispensing method |
| CN207356784U (en) * | 2017-07-12 | 2018-05-15 | 张宇 | A kind of air filter that can efficiently utilize |
| CN108652968A (en) * | 2018-07-20 | 2018-10-16 | 山东艾博康生物科技有限公司 | A kind of medicine dissolving device and handle assembly of intelligence location |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111991230B (en) | 2024-04-16 |
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