CN114452211B - Dispensing filter and dispensing method thereof - Google Patents
Dispensing filter and dispensing method thereof Download PDFInfo
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- CN114452211B CN114452211B CN202210103856.6A CN202210103856A CN114452211B CN 114452211 B CN114452211 B CN 114452211B CN 202210103856 A CN202210103856 A CN 202210103856A CN 114452211 B CN114452211 B CN 114452211B
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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
-
- 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
-
- 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 arranged in the filter body, a first puncture outfit and a second puncture outfit, wherein a closed cavity is formed in the filter body, the closed cavity is divided into a first cavity, a third cavity, a fourth cavity and a second cavity which are communicated in sequence through the filtering membrane and a partition plate, an inserting tube of the first puncture outfit is communicated with the first cavity through a first through hole, an inserting tube 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 forms vortex when the medicine is transferred through the design of the flow channel, so that the medicine can be fully dispersed and then mixed with normal saline, the dissolution of the medicine is accelerated, and the impurities generated in the process of filtering and dispensing are fully filtered 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 soft infusion bottle dispensing disposal method, a disposal person pumps a small amount of liquid (typically normal saline) in an infusion bottle by using a disposable syringe and injects the liquid into a medicine powder/liquid bottle, the medicine powder/liquid bottle is manually shaken, after the medicine powder/liquid in the bottle is fully dissolved and mixed, the medicine powder/liquid is pumped back into the disposable syringe, and finally the mixed liquid is injected into the infusion bottle. The preparation process has the defects of easy pollution, waste, complicated operation and the like of the liquid medicine.
In order to solve the problems, a special liquid medicine transfer device/filter is arranged in the industry and is connected with the penicillin bottle and the infusion bottle, the liquid medicine transfer device/filter does not need to be pulled out and plugged in for a plurality of times, and the operation steps in the liquid medicine transferring process and the pollution risk caused by exposure to the air are reduced. If the patent with the authority number of CN 108159776B provides a double-film dispensing filter, because the bottom plate occupies a large space, and the puncture outfit outlet is narrow and clings to the filtering membrane, the problems of narrow flow passage, large resistance, easy blockage and difficult dissolution of liquid medicine are caused.
Disclosure of Invention
The purpose of the invention is that: the invention provides a medicine dispensing filter which solves the problems that an existing medicine dispensing filter is narrow in flow passage and liquid medicine is not easy to dissolve in the medicine dispensing process.
The technical scheme of the invention is as follows: the 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, the cover plate is arranged on the base, a closed cavity is formed in the cover plate, and a turbulence mechanism is arranged in the closed cavity;
the top surface of the base is concavely provided with a groove, the side wall of the groove is convexly provided with a boss inwards, the partition plate is arranged in the groove, and the two sides of the base are symmetrically provided with a first through hole and a second through hole which are communicated with the groove in a penetrating way;
the groove is evenly divided into a first cavity and a second cavity by the partition plate, the plug-in pipe of the first puncture outfit is communicated with the first cavity through the first through hole, and the plug-in 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 supported by the boss;
the cavity is internally provided with a pressing plate, the pressing plate is provided with a liquid passing hole in a penetrating way, the pressing plate equally divides the cavity into a third cavity and a fourth cavity, 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 pressed through the tight fit between the partition plate and the pressing plate, and the first chamber is communicated with the third chamber and the second chamber is communicated with the fourth chamber through the filtering holes of the filtering membrane.
As preferable: 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 installed on the base through the guide effect of the guide block and the guide groove.
As preferable: the outer wall of the cover plate is also convexly provided with an elastic bulge for increasing the surface friction force of the cover plate and the base during installation.
As preferable: the turbulence mechanism comprises the following structures which are used alternatively or in combination:
a. the bottom surface of the groove of the base is provided with a vortex runner;
b. and an eddy current rotating channel is arranged on the bottom surface of the cavity of the cover plate.
As preferable: the filter pore diameters of the two sides of the filter membrane are different, and the filter pore diameter of one side of the first chamber is larger than that of one side of the second chamber.
As preferable: the upper surface of apron or the lower surface of base concave are equipped with the pit, evenly be provided with a plurality of anti-skidding lines in the pit.
As preferable: the outer surface of the filter body is uniformly distributed with a plurality of anti-skid convex points or strip-shaped convex points.
8. The dispensing method of the dispensing filter is characterized by comprising the following steps of:
the method comprises the steps that a first puncture outfit is connected with an infusion bottle, and a second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein 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 flows into the penicillin bottle along the second through hole;
the drug dispensing personnel shake the penicillin bottle to mix the medicinal powder or the medicinal liquid in the bottle with physiological saline;
releasing the infusion bottle, allowing physiological saline to flow into the dispensing filter along the second through hole under the action of negative pressure, forming vortex under the action of the turbulence mechanism, and accelerating the full mixing and dissolving of medicinal powder or medicinal liquid and the physiological saline;
the physiological saline mixed with the liquid medicine or the medicinal powder sequentially passes through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber and then flows back into the infusion bottle along the first through hole;
the steps of the sixth step are repeated for at least 2 times, and the transfer of the medicinal powder or the medicinal liquid is completed.
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 the liquid medicine sequentially passes through the 4 chambers, vortex flow is formed in the chambers through the vortex flow channel, so that fusion between large-particle medicine powder or the liquid medicine and normal saline is accelerated, the blocking of a film is reduced, the flow speed is accelerated, and the dispensing time is shortened;
and then filtering twice by a filtering membrane, and fully filtering impurities generated in the process of filtering and dispensing.
Drawings
FIG. 1 is a schematic exploded view of the construction of a dispensing filter of the present invention;
FIG. 2 is a schematic view of the structure of the base of the dispensing filter;
FIG. 3 is a schematic view of the construction of a cover plate of the dispensing filter;
FIG. 4 is a schematic illustration of the construction of a second embodiment of a dispensing filter;
FIG. 5 is a schematic view of the construction of a base of a second embodiment of a dispensing filter;
FIG. 6 is a schematic view of the construction of a cover plate of a second embodiment of a dispensing filter;
fig. 7 is a schematic view of the structure of the base of a medication dispensing filter of a third embodiment.
Description of the main reference numerals
Detailed Description
The invention will be further described in detail below with reference to the accompanying drawings:
the preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention. The directional terms referred to in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer only to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the invention and is not limiting of the invention.
Example 1:
referring to fig. 1 to 3, a dispensing filter includes a filter body, a filtering membrane 2 disposed in the filter body, a first puncture outfit 3 and a second puncture outfit 4 connected to two ends of the filter body, wherein the first puncture outfit 3 and the second puncture outfit 4 are respectively provided with at least one duct;
the filter body comprises a base 11, a partition plate 12 and a cover plate 13;
the top surface of the base 11 is concavely provided with a groove 111, the side wall of the groove 111 is internally provided with a boss 112 in a protruding manner, 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, two sides of the base 11 are symmetrically provided with a first through hole 113 and a second through hole 114 which are communicated with the groove 111 in a penetrating manner, the plug tube of the first puncture outfit 3 is communicated with the first chamber 1111 through the first through hole 113, the plug tube of the second puncture outfit 4 is communicated with the second chamber 1112 through the second through hole 114, and the inner wall of the groove 111 of the base 11 is concavely provided with a guide groove 115;
the number of the first through holes 113 is consistent with that of the pore canals of the first puncture outfit 3, and the number of the second through holes 114 is consistent with that of the pore canals of the second puncture outfit 4.
The bottom surface of the cover plate 13 is convexly provided with a cavity 131, the diameter of the outer wall of the cavity 131 is the same as that of the inner wall of the groove 111, the outer wall of the cavity 13 is convexly provided with a guide block 132 matched with the guide groove, when the cover plate 13 is arranged on the base 11 through the guide action 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 13 is further provided with an elastic protrusion 133 for increasing the surface friction force when the cover 13 is mounted on the base 11.
The cavity 131 is internally provided with a pressing plate 134, a liquid passing hole 1341 is formed in the pressing plate 134 in a penetrating manner, the pressing plate 134 equally divides the cavity 131 into a third cavity 1311 and a fourth cavity 1312, and the third cavity 1311 and the fourth cavity 1312 are communicated 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 pressed by the tight fit between the partition plate 12 and the pressing 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 filter pore diameters of the two sides of the filter membrane 2 are different, and the filter pore diameter of one side of the first chamber is larger than that of one side of the second chamber.
The sealed cavity is internally provided with a turbulent flow mechanism, and the concrete structure of the turbulent flow mechanism comprises the following structures which are selected or combined:
a. the bottom surface of the groove 111 of the base 11 is provided with a vortex runner 14;
b. the bottom surface of the cavity 131 of the cover plate 13 is provided with a vortex runner 14.
The vortex spinning 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 provided with the vortex spinning channels 14, the vortex spinning channels 14 on two sides are tightly matched at the filtering membrane 12, and further compress the filtering membrane 12.
The dispensing filter is also provided with an anti-skid mechanism, the anti-skid mechanism is provided with concave pits 135 on the upper surface of the cover plate 11 or the lower surface of the base 13, and a plurality of anti-skid patterns are uniformly arranged in the concave pits 135;
or a plurality of anti-skid convex points or strip-shaped convex points are uniformly distributed on the outer surface of the filter body.
In this embodiment, the shape of the base is not limited to square or round, and the equivalent changes and modifications of the internal structure are all intended to be covered by the claims.
The dispensing method of the dispensing filter provided by the embodiment specifically comprises the following steps:
the method comprises the steps that a first puncture outfit is connected with an infusion bottle, and a second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein 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 flows into the penicillin bottle along the second through hole;
the drug dispensing personnel shake the penicillin bottle to mix the medicinal powder or the medicinal liquid in the bottle with physiological saline;
releasing the infusion bottle, allowing physiological saline to flow into the dispensing filter along the second through hole under the action of negative pressure, forming vortex under the action of the turbulence mechanism, and accelerating the full mixing and dissolving of medicinal powder or medicinal liquid and the physiological saline;
the physiological saline mixed with the liquid medicine or the medicinal powder sequentially passes through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber and then flows back into the infusion bottle along the first through hole;
the steps of the sixth step are repeated for at least 2 times, and the transfer of the medicinal powder or the medicinal liquid is completed.
Example 2:
referring to fig. 4 to 6, the difference between the present embodiment and embodiment 1 is that a vortex assembly is adopted in the closed cavity to replace the vortex spinning path, the vortex assembly is respectively disposed in the first chamber 1111 and the second chamber 1112, the first chamber 1111 is located near the first through hole 113 and the second chamber 114, the vortex assembly includes a first vortex plate 151 and a second vortex plate 152 arranged in a herringbone manner, and a gap is left between the first vortex plate 151 and the second vortex plate 152;
the third cavity 1311 and the fourth cavity 1312 are respectively located at positions corresponding to the spoiler assemblies, and are further provided with auxiliary spoiler assemblies, wherein the auxiliary spoiler assemblies comprise a third spoiler 153 corresponding to the first spoiler 151 and a fourth spoiler 154 corresponding to the second spoiler 152;
the filtering membrane 2 is located between the turbulence assembly and the auxiliary turbulence assembly, and the turbulence assembly is tightly matched with the auxiliary turbulence assembly to further compress the filtering membrane 2.
The dispensing method of the dispensing filter provided by the embodiment specifically comprises the following steps:
the method comprises the steps that a first puncture outfit is connected with an infusion bottle, and a second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein 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 flows into the penicillin bottle along the second through hole;
the drug dispensing personnel shake the penicillin bottle to mix the medicinal powder or the medicinal liquid in the bottle with physiological saline;
releasing the infusion bottle, allowing normal saline to flow into the dispensing filter along the second through hole under the action of negative pressure, and enabling the liquid medicine from the penicillin bottle to strike the turbulence assembly to accelerate dispersion and rapid dissolution;
the physiological saline mixed with the liquid medicine or the medicinal powder sequentially passes through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber and then flows back into the infusion bottle along the first through hole;
the steps of the sixth step are repeated for at least 2 times, and the transfer of the medicinal powder or the medicinal liquid is completed.
Example 3:
referring to fig. 7, the difference between the present embodiment and embodiment 1 is that the filter body is a cylinder, vortex components are used in the closed cavity to replace vortex channels, the vortex components are respectively disposed in the first chamber 1111 and the second chamber 1112, which are located near the first through hole 113 and the second through hole 114, the vortex components include a first vortex plate 151 and a second vortex plate 152 which are arranged in a herringbone manner, and annular vortex plates 155 distributed on two sides of the first vortex plate and the second vortex plate, and gaps are left between the adjacent vortex plates;
the third cavity 1311 and the fourth cavity 1312 are respectively located at positions corresponding to the spoiler assemblies, and are further provided with auxiliary spoiler assemblies, wherein each auxiliary spoiler assembly comprises a third spoiler member 153 corresponding to the first spoiler member 151, a fourth spoiler member 154 corresponding to the second spoiler member 152, and an auxiliary annular spoiler corresponding to the annular spoiler 155;
the filtering membrane 2 is located between the turbulence assembly and the auxiliary turbulence assembly, and the turbulence assembly is tightly matched with the auxiliary turbulence assembly to further compress the filtering membrane 2.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. The 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, the cover plate is arranged on the base, a closed cavity is formed in the cover plate, and a turbulence mechanism is arranged in the closed cavity;
the turbulence mechanism comprises the following structures alternatively:
a. the bottom surface of the groove of the base is provided with an eddy current rotating channel which consists of a plurality of groups of wave plates which are arranged in parallel and extend from the bottoms of the first cavity and the second cavity;
b. the bottom surface of the cavity of the cover plate is provided with an eddy current rotating channel, and the eddy current rotating channel consists of a plurality of groups of wave plates which are arranged in parallel and protrude from the bottoms of the third cavity and the fourth cavity;
c. the bottom surface of the groove of the base and the bottom surface of the cavity of the cover plate are respectively provided with an eddy current rotating channel, and the eddy current rotating channels are composed of a plurality of groups of wave plates which are arranged in parallel and protrude from the bottoms of the first cavity and the second cavity, and a plurality of groups of wave plates which are arranged in parallel and protrude from the bottoms of the third cavity and the fourth cavity;
d. the bottom surface of the groove of the base is provided with a turbulence assembly; the vortex assembly is arranged at the position, close to the first through hole, of the first cavity, the position, close to the second through hole, of the second cavity, and comprises a first vortex plate and a second vortex plate which are distributed in a herringbone manner, and a gap is reserved between the first vortex plate and the second vortex plate; the third chamber and the fourth chamber are respectively positioned at the positions corresponding to the spoiler assemblies and are also provided with auxiliary spoiler assemblies, and the auxiliary spoiler assemblies comprise a third spoiler corresponding to the first spoiler and a fourth spoiler corresponding to the second spoiler;
e. the bottom surface of the groove of the base is provided with a turbulence assembly; the vortex assembly is arranged at the position, close to the first through hole, of the first cavity, the position, close to the second through hole, of the second cavity, and comprises a first vortex plate, a second vortex plate and annular vortex plates, wherein the first vortex plate and the second vortex plate are distributed in a herringbone manner, the annular vortex plates are distributed on two sides of the first vortex plate and the second vortex plate, and gaps are reserved between the two adjacent vortex plates; the third chamber and the fourth chamber are respectively positioned at the positions corresponding to the spoiler assemblies and are also provided with auxiliary spoiler assemblies, wherein each auxiliary spoiler assembly comprises a third spoiler member corresponding to the first spoiler member, a fourth spoiler member corresponding to the second spoiler member and an auxiliary annular spoiler corresponding to the annular spoiler;
the top surface of the base is concavely provided with a groove, the side wall of the groove is convexly provided with a boss inwards, the partition plate is arranged in the groove, and the two sides of the base are symmetrically provided with a first through hole and a second through hole which are communicated with the groove in a penetrating way;
the groove is evenly divided into a first cavity and a second cavity by the partition plate, the plug-in pipe of the first puncture outfit is communicated with the first cavity through the first through hole, and the plug-in 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 supported by the boss;
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 under the guiding action of the guide block and the guide groove;
the cavity is internally provided with a pressing plate, the pressing plate is provided with a liquid passing hole in a penetrating way, the pressing plate equally divides the cavity into a third cavity and a fourth cavity, 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 pressed through the tight fit between the partition plate and the pressing plate, and the first chamber is communicated with the third chamber and the second chamber is communicated with the fourth chamber through the filtering holes of the filtering membrane.
2. A dispensing filter as claimed in claim 1, wherein the outer wall of the cover plate is further provided with resilient protrusions for increasing the surface friction of the cover plate when mounted to the base.
3. A dispensing filter according to claim 1, wherein the filter membrane has different filter pore sizes on both sides, the filter pore size on the side of the first chamber being larger than the filter pore size on the side of the second chamber.
4. A dispensing filter as claimed in 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 patterns are uniformly arranged in the pits.
5. A dispensing filter as claimed in claim 1, wherein the outer surface of the filter body is evenly distributed with a plurality of anti-slip bumps or strip-like protrusions.
6. A method of dispensing a medicament using a medicament dispensing filter as claimed in claim 1, comprising the steps of:
the method comprises the steps that a first puncture outfit is connected with an infusion bottle, and a second puncture outfit is connected with a penicillin bottle;
pressing the infusion bottle, wherein 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 flows into the penicillin bottle along the second through hole;
the drug dispensing personnel shake the penicillin bottle to mix the medicinal powder or the medicinal liquid in the bottle with physiological saline;
releasing the infusion bottle, allowing physiological saline to flow into the dispensing filter along the second through hole under the action of negative pressure, forming vortex under the action of the turbulence mechanism, and accelerating the full mixing and dissolving of medicinal powder or medicinal liquid and the physiological saline;
the physiological saline mixed with the liquid medicine or the medicinal powder sequentially passes through the second chamber, the filtering membrane, the third chamber, the fourth chamber, the filtering membrane and the first chamber and then flows back into the infusion bottle along the first through hole;
the steps of the sixth step are repeated for at least 2 times, and the transfer of the medicinal powder or the medicinal liquid is completed.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114452211A CN114452211A (en) | 2022-05-10 |
| CN114452211B true CN114452211B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210103856.6A Active CN114452211B (en) | 2022-01-28 | 2022-01-28 | Dispensing filter and dispensing method thereof |
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