CN114452211A - Dispensing filter and dispensing method thereof - Google Patents
Dispensing filter and dispensing method thereof Download PDFInfo
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- CN114452211A CN114452211A CN202210103856.6A CN202210103856A CN114452211A CN 114452211 A CN114452211 A CN 114452211A CN 202210103856 A CN202210103856 A CN 202210103856A CN 114452211 A CN114452211 A CN 114452211A
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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
- A61J1/2006—Piercing means
- A61J1/2013—Piercing means having two piercing ends
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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
- A61J1/2048—Connecting means
-
- 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
- A61J1/2086—Filtering means for fluid filtration
-
- 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
- A61J1/2089—Containers or vials which are to be joined to each other in order to mix their contents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a dispensing filter and a dispensing method thereof, wherein the dispensing filter comprises a filter body, a filtering membrane, a first puncture outfit and a second puncture outfit which are arranged in the filter body, a closed cavity is formed in the filter body and is divided into a first cavity, a third cavity, a fourth cavity and a second cavity which are sequentially communicated through the filtering membrane and a partition plate, a plug-in pipe of the first puncture outfit is communicated with the first cavity through a first through hole, a plug-in pipe of the second puncture outfit is communicated with the second cavity through a second through hole, and a turbulence mechanism is arranged in the closed cavity. The dispensing filter provided by the invention enables the medicine to form vortex during transferring through the design of the flow passage, so that the medicine can be fully dispersed and then mixed with normal saline, the medicine dissolution is accelerated, and the full filtration of impurities generated in the filtering and dispensing process is realized through twice filtration.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a dispensing filter and a dispensing method of the dispensing filter.
Background
In the traditional method for dispensing and disposing of soft infusion bottle, a disposal person generally uses a disposable syringe to suck a small amount of liquid (generally normal saline) in the infusion bottle and inject the liquid into a medicine powder/medicine liquid bottle, manually shakes the medicine powder/medicine liquid bottle, and after the medicine powder/medicine liquid in the bottle is fully dissolved and mixed, the medicine powder/medicine liquid is pumped back into the disposable syringe, and finally the mixed medicine liquid is injected into the infusion bottle. The preparation process has the defects of easy pollution, waste, complex operation and the like of liquid medicine.
In order to solve the problems, a special liquid medicine transfer device/filter is arranged in the industry, a penicillin bottle is connected with an infusion bottle, the liquid medicine transfer device/filter does not need to be pulled out and inserted for many times, and the operation steps in the liquid medicine transferring process and the risk of pollution caused by exposure in the air are reduced. If the patent of grant number CN 108159776B provides a two membrane filter of dispensing, because of the bottom plate occupies great space, and the puncture ware export is narrow and small, hug closely filtration membrane, lead to the runner narrow and small, the resistance is big, easily takes place to block up, the difficult problem that dissolves of liquid medicine.
Disclosure of Invention
The purpose of the invention is: the invention provides a dispensing filter for solving the problems that the flow channel of the existing dispensing filter is narrow and the liquid medicine is not easy to dissolve in the dispensing process, and the invention also aims to provide a filtering method of the dispensing filter, which can filter impurities fully and promote the liquid medicine to be mixed quickly in a turbulent flow dispersion mode.
The technical solution of the invention is as follows: a medicine dispensing filter comprises a filter body, a filtering membrane arranged in the filter body, and a first puncture outfit and a second puncture outfit which are connected with two ends of the filter body, and is characterized in that the filter body comprises a base, a partition plate and a cover plate, wherein the cover plate is arranged on the base, a closed cavity is formed inside the cover plate, and a flow disturbing mechanism is arranged in the closed cavity;
a groove is concavely arranged on the top surface of the base, a boss is convexly arranged on the side wall of the groove inwards, the partition plate is arranged in the groove, and a first through hole and a second through hole which are communicated with the groove are symmetrically arranged on two sides of the base in a penetrating manner;
the partition plate equally divides the groove into a first chamber and a second chamber, the insertion pipe of the first puncture outfit is communicated with the first chamber through the first through hole, and the insertion pipe of the second puncture outfit is communicated with the second chamber through the second through hole;
the bottom surface of the cover plate is convexly provided with a cavity, the diameter of the outer wall of the cavity is the same as that of the inner wall of the groove, and when the cover plate is arranged on the base, the cavity is placed in the groove and is supported by the boss;
a pressure plate is arranged in the cavity, a liquid passing hole is arranged on the pressure plate in a penetrating mode, the pressure plate divides the inside of the cavity into a third cavity and a fourth cavity in a dividing mode, and the third cavity is communicated with the fourth cavity through the liquid passing hole;
the edge of the filtering membrane is pressed between the cover plate and the base, the middle part of the filtering membrane is further compressed through the close fit between the partition plate and the pressing plate, and the first cavity is communicated with the third cavity and the second cavity is communicated with the fourth cavity through filtering holes of the filtering membrane.
Preferably, the method comprises the following steps: the inner wall of the groove of the base is concavely provided with a guide groove, the outer wall of the cavity of the cover plate is convexly provided with a guide block matched with the guide groove, and the cover plate is arranged on the base through the guide effect of the guide block and the guide groove.
Preferably, the method comprises the following steps: the outer wall of the cover plate is also convexly provided with an elastic bulge for increasing the surface friction force when the cover plate and the base are installed.
Preferably, the method comprises the following steps: the flow disturbing mechanism comprises one or a combination of the following structures:
a. a vortex flow channel is arranged on the bottom surface of the groove of the base;
b. and a vortex rotary channel is arranged on the bottom surface of the cavity of the cover plate.
Preferably, the method comprises the following steps: the filtration pore diameters of the two sides of the filtration membrane are different, and the filtration pore diameter on one side of the first chamber is larger than that on one side of the second chamber.
Preferably, the method comprises the following steps: the upper surface of apron or the lower surface of base are equipped with the pit in the concave, evenly be provided with a plurality of anti-skidding lines in the pit.
Preferably, the method comprises the following steps: a plurality of anti-skidding salient points or strip-shaped bulges are uniformly distributed on the outer surface of the filter body.
8. A dispensing method of a dispensing filter is characterized by comprising the following steps:
the first puncture outfit is connected with an infusion bottle, and the second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein the physiological saline flows into the dispensing filter along the first through hole, sequentially passes through the first chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the second chamber, and then flows into the penicillin bottle along the second through hole;
thirdly, shaking the penicillin bottle by a medicine dispensing worker to mix the medicine powder or the liquid medicine in the penicillin bottle with the physiological saline;
fourthly, loosening the infusion bottle, enabling the normal saline to flow into the dispensing filter along the second through hole under the action of negative pressure, and forming vortex under the action of the turbulence mechanism to accelerate the full mixing and dissolving of the medicine powder or the medicine liquid and the normal saline;
fifthly, enabling the physiological saline of the mixed liquid medicine or the mixed powder to sequentially pass through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber, and then refluxing to the infusion bottle along the first through hole;
sixthly, circulating the first step to the fifth step for at least 2 times to complete the transfer of the medicine powder or the medicine liquid.
Compared with the prior art, the invention has the beneficial effects that:
according to the dispensing filter provided by the invention, the sealed inner cavity of the filter is divided into 4 communicated chambers through the partition plate, the pressing plate and the filtering membrane, when liquid medicine sequentially passes through the 4 chambers, a vortex is formed in the chambers through the vortex flow channel, so that the fusion between large-particle medicine powder or the liquid medicine and normal saline is accelerated, the film blockage is reduced, the flow speed is accelerated, and the dispensing time is shortened;
and then, the impurities generated in the filtration and medicine preparation process are fully filtered by two times of filtration of the filtration membrane.
Drawings
FIG. 1 is an exploded view of the dispensing filter of the present invention;
FIG. 2 is a schematic view of the base of the dispensing filter;
FIG. 3 is a schematic view of the construction of the cover plate of the dispensing filter;
FIG. 4 is a schematic view of the construction of a second embodiment of the dispensing filter;
FIG. 5 is a schematic view of the construction of the base of the dispensing filter of the second embodiment;
FIG. 6 is a schematic view of the construction of a cover plate of the dispensing filter of the second embodiment;
fig. 7 is a schematic view of the construction of the base of the dosage filter of the third embodiment.
Description of the main Components
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings:
the following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Example 1:
referring to fig. 1 to 3, a filter for dispensing a medicament includes a filter body, a filter membrane 2 disposed in the filter body, and a first puncture device 3 and a second puncture device 4 connected to two ends of the filter body, wherein the first puncture device 3 and the second puncture device 4 are respectively provided with at least one pore channel;
the filter body comprises a base 11, a partition plate 12 and a cover plate 13;
a groove 111 is concavely arranged on the top surface of the base 11, a boss 112 is convexly arranged on the side wall of the groove 111, the partition plate 12 is installed in the groove 111 and equally divides the groove into a first chamber 1111 and a second chamber 1112, a first through hole 113 and a second through hole 114 which are communicated with the groove 111 are symmetrically arranged on both sides of the base 11 in a penetrating way, the insertion pipe of the first puncture outfit 3 is communicated with the first chamber 1111 through the first through hole 113, the insertion pipe of the second puncture outfit 4 is communicated with the second chamber 1112 through the second through hole 114, and a guide groove 115 is concavely arranged on the inner wall of the groove 111 of the base 11;
the number of the first through holes 113 is equal to the number of the tunnels of the first puncture outfit 3, and the number of the second through holes 114 is equal to the number of the tunnels of the second puncture outfit 4.
A cavity 131 is convexly arranged on the bottom surface of the cover plate 13, the diameter of the outer wall of the cavity 131 is the same as that of the inner wall of the groove 111, a guide block 132 matched with the guide groove is convexly arranged on the outer wall of the cavity 13, when the cover plate 13 is installed on the base 11 through the guide effect of the guide block 132 and the guide groove 115, the cavity 131 is placed in the groove 111 and supported by the boss 112, and a closed cavity is formed between the cover plate 13 and the base 11;
the outer wall of the cover plate 13 is further provided with an elastic protrusion 133 in a protruding manner, so as to increase the surface friction force when the cover plate 13 and the base 11 are installed.
A pressure plate 134 is arranged in the cavity 131, a liquid passing hole 1341 is formed in the pressure plate 134 in a penetrating manner, the pressure plate 134 divides the interior of the cavity 131 into a third chamber 1311 and a fourth chamber 1312, and the third chamber 1311 is communicated with the fourth chamber 1312 through the liquid passing hole 1341.
The filtering membrane 2 is arranged in the closed cavity, the edge of the filtering membrane 2 is pressed between the cover plate 13 and the base 11, the middle part of the filtering membrane 2 is further compressed through the close fit between the partition plate 12 and the pressure plate 134, and the first chamber 1111 and the third chamber 1311, and the second chamber 1112 and the fourth chamber 1312 are communicated through the filtering holes of the filtering membrane 2;
the filtration pore diameters of the two sides of the filtration membrane 2 are different, and the filtration pore diameter on one side of the first chamber is larger than that on one side of the second chamber.
Still be provided with vortex mechanism in the airtight cavity, the concrete structure of vortex mechanism includes that the alternative of following structure chooses for use or makes up the use:
a. a vortex flow channel 14 is arranged on the bottom surface of the groove 111 of the base 11;
b. the bottom surface of the cavity 131 of the cover plate 13 is provided with a vortex channel 14.
The vortex rotary channel comprises a plurality of groups of wave plates which are arranged in parallel;
when the bottom surface of the groove 111 of the base 11 and the cavity 131 of the cover plate 12 are both provided with the vortex runners 14, the vortex runners 14 on both sides are tightly matched with the filtering membrane 12, and the filtering membrane 12 is further pressed tightly.
The dispensing filter is also provided with an anti-skidding mechanism, the anti-skidding mechanism is provided with a pit 135 in a concave manner on the upper surface of the cover plate 11 or the lower surface of the base 13, and a plurality of anti-skidding grains are uniformly arranged in the pit 135;
or a plurality of anti-skid convex points or strip-shaped bulges are uniformly distributed on the outer surface of the filter body.
In the present embodiment, the shape of the base is not limited to be square or circular, and the equivalent changes and modifications made on the premise that the internal structure is the same as the present invention should be covered by the claims of the present invention.
The dispensing method of the dispensing filter provided in this embodiment specifically includes the following steps:
the first puncture outfit is connected with an infusion bottle, and the second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein the physiological saline flows into the dispensing filter along the first through hole, sequentially passes through the first chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the second chamber, and then flows into the penicillin bottle along the second through hole;
thirdly, shaking the penicillin bottle by a medicine dispensing worker to mix the medicine powder or the liquid medicine in the penicillin bottle with the physiological saline;
fourthly, loosening the infusion bottle, enabling the normal saline to flow into the dispensing filter along the second through hole under the action of negative pressure, and forming vortex under the action of the turbulence mechanism to accelerate the full mixing and dissolving of the medicine powder or the medicine liquid and the normal saline;
fifthly, enabling the physiological saline of the mixed liquid medicine or the mixed powder to sequentially pass through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber, and then refluxing to the infusion bottle along the first through hole;
sixthly, circulating the first step to the fifth step for at least 2 times to complete the transfer of the medicine powder or the medicine liquid.
Example 2:
referring to fig. 4 to 6, the present embodiment is different from embodiment 1 in that a vortex channel is replaced by a flow disturbance assembly in the closed cavity, the flow disturbance assembly is respectively disposed in the first chamber 1111 and the second chamber 1112, the first chamber 113 and the second chamber 1112 are located adjacent to the second through hole 114, the flow disturbance assembly includes a first spoiler 151 and a second spoiler 152 arranged in a herringbone manner, and a gap is left between the first spoiler 151 and the second spoiler 152;
the third chamber 1311 and the fourth chamber 1312 are further provided with an auxiliary flow disturbing assembly at positions corresponding to the flow disturbing assemblies, respectively, and the auxiliary flow disturbing assembly includes a third flow disturbing plate 153 corresponding to the first flow disturbing plate 151 and a fourth flow disturbing plate 154 corresponding to the second flow disturbing plate 152;
The dispensing method of the dispensing filter provided in this embodiment specifically includes the following steps:
the first puncture outfit is connected with an infusion bottle, and the second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein the physiological saline flows into the dispensing filter along the first through hole, sequentially passes through the first chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the second chamber, and then flows into the penicillin bottle along the second through hole;
thirdly, shaking the penicillin bottle by a medicine dispensing worker to mix the medicine powder or the liquid medicine in the penicillin bottle with the physiological saline;
fourthly, the infusion bottle is loosened, normal saline flows into the dispensing filter along the second through hole under the action of negative pressure, and liquid medicine from the penicillin bottle impacts the turbulence assembly to accelerate dispersion and dissolve quickly;
fifthly, enabling the physiological saline of the mixed liquid medicine or the mixed powder to sequentially pass through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber, and then refluxing to the infusion bottle along the first through hole;
sixthly, circulating the first step to the fifth step for at least 2 times to complete the transfer of the medicine powder or the medicine liquid.
Example 3:
referring to fig. 7, the difference between this embodiment and embodiment 1 is that the filter body is a cylinder, a vortex channel is replaced by a vortex component in the closed cavity, the vortex component is respectively disposed in the first chamber 1111 and the second chamber 1112, the first chamber 113 and the second chamber 1112 are located near the first through hole 114, the vortex component includes a first spoiler 151 and a second spoiler 152 arranged in a herringbone pattern and an annular spoiler 155 disposed on both sides of the first spoiler and the second spoiler, and a gap is left between two adjacent spoilers;
the third chamber 1311 and the fourth chamber 1312 are respectively provided with an auxiliary flow disturbing assembly at positions corresponding to the flow disturbing assemblies, the auxiliary flow disturbing assembly comprises a third flow disturbing member 153 corresponding to the first flow disturbing member 151, a fourth flow disturbing member 154 corresponding to the second flow disturbing member 152, and an auxiliary annular flow disturbing plate corresponding to the annular flow disturbing plate 155;
The above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. A medicine dispensing filter comprises a filter body, a filtering membrane arranged in the filter body, and a first puncture outfit and a second puncture outfit which are connected with two ends of the filter body, and is characterized in that the filter body comprises a base, a partition plate and a cover plate, wherein the cover plate is arranged on the base, a closed cavity is formed inside the cover plate, and a flow disturbing mechanism is arranged in the closed cavity;
a groove is concavely arranged on the top surface of the base, a boss is convexly arranged on the side wall of the groove inwards, the partition plate is arranged in the groove, and a first through hole and a second through hole which are communicated with the groove are symmetrically arranged on two sides of the base in a penetrating manner;
the partition plate equally divides the groove into a first cavity and a second cavity, the insertion pipe of the first puncture outfit is communicated with the first cavity through the first through hole, and the insertion pipe of the second puncture outfit is communicated with the second cavity through the second through hole;
the bottom surface of the cover plate is convexly provided with a cavity, the diameter of the outer wall of the cavity is the same as that of the inner wall of the groove, and when the cover plate is arranged on the base, the cavity is placed in the groove and is supported by the boss;
a pressure plate is arranged in the cavity, a liquid passing hole is arranged on the pressure plate in a penetrating mode, the pressure plate divides the inside of the cavity into a third cavity and a fourth cavity in a dividing mode, and the third cavity is communicated with the fourth cavity through the liquid passing hole;
the edge of the filtering membrane is pressed between the cover plate and the base, the middle part of the filtering membrane is further compressed through the close fit between the partition plate and the pressing plate, and the first cavity is communicated with the third cavity and the second cavity is communicated with the fourth cavity through filtering holes of the filtering membrane.
2. The dispensing filter of claim 1, wherein the inner wall of the groove of the base is concavely provided with a guide groove, the outer wall of the cavity of the cover plate is convexly provided with a guide block matched with the guide groove, and the cover plate is arranged on the base through the guide action of the guide block and the guide groove.
3. The dispensing filter of claim 2 wherein the outer wall of the cover plate is further provided with resilient protrusions for increasing the surface friction when the cover plate is mounted to the base.
4. A dispensing filter according to claim 1, wherein the flow perturbation means comprises, in the alternative or in combination:
a. a vortex flow channel is arranged on the bottom surface of the groove of the base;
b. and a vortex rotary channel is arranged on the bottom surface of the cavity of the cover plate.
5. The dispensing filter of claim 1 wherein the filter membrane has a different filter pore size on each side of the filter membrane, the filter pore size on one side of the first chamber being larger than the filter pore size on one side of the second chamber.
6. The dispensing filter of claim 1 wherein the upper surface of the cover plate or the lower surface of the base is concavely provided with pits, and a plurality of anti-slip grains are uniformly arranged in the pits.
7. The dispensing filter of claim 1 wherein the outer surface of the filter body has a plurality of non-slip raised points or protrusions in the form of strips uniformly distributed thereon.
8. A method of dispensing a filter, comprising the steps of:
the first puncture outfit is connected with an infusion bottle, and the second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein the physiological saline flows into the dispensing filter along the first through hole, sequentially passes through the first chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the second chamber, and then flows into the penicillin bottle along the second through hole;
thirdly, shaking the penicillin bottle by a medicine dispensing worker to mix the medicine powder or the liquid medicine in the penicillin bottle with the physiological saline;
fourthly, loosening the infusion bottle, enabling the normal saline to flow into the dispensing filter along the second through hole under the action of negative pressure, and forming vortex under the action of the turbulence mechanism to accelerate the full mixing and dissolving of the medicine powder or the medicine liquid and the normal saline;
fifthly, enabling the physiological saline of the mixed liquid medicine or the mixed powder to sequentially pass through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber, and then refluxing to the infusion bottle along the first through hole;
sixthly, circulating the first step to the fifth step for at least 2 times to complete the transfer of the medicine powder or the medicine liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210103856.6A CN114452211B (en) | 2022-01-28 | 2022-01-28 | Dispensing filter and dispensing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210103856.6A CN114452211B (en) | 2022-01-28 | 2022-01-28 | Dispensing filter and dispensing method thereof |
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| Publication Number | Publication Date |
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| CN114452211A true CN114452211A (en) | 2022-05-10 |
| CN114452211B CN114452211B (en) | 2023-10-03 |
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