CN113941047B - Medicine adding device for transfusion - Google Patents
Medicine adding device for transfusion Download PDFInfo
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- CN113941047B CN113941047B CN202111241551.3A CN202111241551A CN113941047B CN 113941047 B CN113941047 B CN 113941047B CN 202111241551 A CN202111241551 A CN 202111241551A CN 113941047 B CN113941047 B CN 113941047B
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- needle point
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- 239000003814 drug Substances 0.000 title claims abstract description 72
- 229940079593 drug Drugs 0.000 title abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000004891 communication Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 42
- 238000011144 upstream manufacturing Methods 0.000 claims description 25
- 238000001802 infusion Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 12
- 241000219122 Cucurbita Species 0.000 claims description 8
- 235000009852 Cucurbita pepo Nutrition 0.000 claims description 8
- 238000012377 drug delivery Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 238000007872 degassing Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000007726 management method Methods 0.000 description 4
- 230000003340 mental effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000012840 feeding operation Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/1407—Infusion of two or more substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a drug adding device for transfusion, comprising: the device comprises a basal body and a needle point limiting dosing bin, wherein a dosing chamber and a filtering chamber are formed in the basal body, a communication pipeline is arranged between the dosing chamber and the filtering chamber, one end of the communication pipeline is communicated with the dosing chamber, the other end of the communication pipeline is communicated with the filtering chamber, one end of the basal body is provided with an input pipeline communicated with the dosing chamber, and the other end of the basal body is provided with an output pipeline communicated with the filtering chamber; the upper end and the lower end of the needle point limiting dosing bin are communicated, the needle point limiting dosing bin is communicated with the dosing chamber, a sealing plug is fixedly arranged in the needle point limiting dosing bin, and the needle point penetrates through the sealing plug and is inserted into the dosing chamber, so that the tip end of the needle point can be propped against the inner wall of the dosing chamber.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a dosing device for transfusion.
Background
The medicine adding in the field of transfusion apparatuses is mainly operated on a dropping bottle originally, but with the implementation of a new national standard, the medicine adding mode of the dropping bottle is cancelled, the Y-shaped medicine adding mode on a pipeline is changed, the gas-liquid separation and the filtering function of medicine adding cannot be completed after a plurality of Y-shaped medicine adding processes, particularly, dead cavities exist in a Y-shaped medicine adding structure, the operation of each person is different, the problems that medicines stay in a blind pipe, the medicine-adding time and the air enter a blood vessel along with liquid exist, and the like exist, the penetration depth of a needle point is related to the problems, the problems are different from person to person, the mode of uniform and standard is lacked, the links are various in the manufacturing process, the cost is increased, the product problem point is increased, and the product quality control is stricter and the cost is high. It is critical whether the added medicine can be completely delivered to the human body at the first time, no examination and investigation are carried out, and in addition, the problem that the gas enters the human body along with the liquid to cause secondary problems and hidden dangers is frequently seen. The original and the existing medicine adding original are independent structures, although the area of the medicine adding point is only about 12 square millimeters, the whole structure design also needs a plurality of auxiliary large shapes to be convenient to operate, the existence of an internal dead space and the retention of medicines and the retention of bubbles are caused due to the overlarge structure, and a compressible space is generated due to the retention of the bubbles, so that a series of adverse events such as the blood return problem of a vein needle, the blood return coagulation thrombosis and the like are caused.
Disclosure of Invention
Therefore, the invention provides a medicine adding device for transfusion, which solves the problems of uneven needle point penetration depth, insufficient product quality, high manufacturing cost and medicine retention caused by poor medicine adding mixing degree in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: a drug delivery device for infusion comprising:
the device comprises a base body, wherein a dosing chamber and a filtering chamber are formed in the base body, a communication pipeline is arranged between the dosing chamber and the filtering chamber, one end of the communication pipeline is communicated with the dosing chamber, the other end of the communication pipeline is communicated with the filtering chamber, an input pipeline communicated with the dosing chamber is formed at one end of the base body, and an output pipeline communicated with the filtering chamber is formed at the other end of the base body; and
the needle point limiting dosing bin is communicated with the upper end and the lower end of the needle point limiting dosing bin, the needle point limiting dosing bin is communicated with the dosing chamber, a sealing plug is fixedly arranged in the needle point limiting dosing bin, and the needle point penetrates through the sealing plug and is inserted into the dosing chamber, and then the tip of the needle point can be propped against the inner wall of the dosing chamber.
Further, the central axis of the input pipeline is intersected with the central axis of the needle point limiting dosing bin.
Further, the port of the input pipeline communicated with the dosing chamber and the port of the communication pipeline communicated with the dosing chamber are staggered.
Further, a liquid filtering membrane is arranged in the filtering chamber, the interior of the filtering chamber is divided into an upstream cavity and a downstream cavity by the liquid filtering membrane, and the upstream cavity is communicated with the dosing chamber through a communication pipeline.
The top of the upstream cavity is provided with an opening, an exhaust cover is covered on the opening, the top of the exhaust cover is provided with an exhaust hole penetrating through the bottom, and the bottom of the exhaust cover is provided with an exhaust film for sealing the exhaust hole.
The base body and the exhaust cover are buckled to form an integral structure, the appearance of the integral structure is divided into two parts, namely, a degassing filtering holding handle is arranged at the downstream part of the large structure, a needle point limiting doser is arranged at the upstream part of the small structure, and the integral structure simultaneously comprises three functions, namely, needle point limiting doser, degassing and liquid filtering. The inside of the integral structure is divided into an upstream chamber and a downstream chamber, wherein the upstream chamber is a needle point limiting dosing chamber, the needle point limiting dosing chamber is formed by surrounding a needle point limiting chamber and an elastic sealing plug, the needle point limiting dosing chamber is communicated with an upstream input pipeline and a communication pipeline, and a dosing needle point is directly contacted and propped against the needle point limiting top surface after penetrating the elastic sealing plug, wherein the downstream chamber is a degassing filtering chamber; in addition, the exhaust cover, the base body and the filtering membrane are welded at one time, three parts are fixed by heat sealing, namely the side wall of the exhaust cover is welded and sealed with the inner wall of the base body, and the lower end face of the exhaust cover is welded and fixed with the filtering membrane by pressing.
Further, the bottom of the exhaust cover is provided with a stepped groove, the exhaust hole is arranged in the stepped groove, the exhaust film comprises a first exhaust film and a second exhaust film, the first step of the stepped groove is provided with the first exhaust film, and the second step of the stepped groove is provided with a prime number second exhaust film.
Further, the exhaust cover and the base body are buckled to form an integral structure.
Furthermore, the matrix is of a flat gourd structure, the dosing chamber is arranged in a big head of the gourd structure, and the filtering chamber is arranged in a small head of the gourd structure.
Further, the needle point limiting medicine adding bin and the basal body are of an integrated structure.
The invention has the following advantages: when the automatic needle point positioning device is used, the spike penetrates through the sealing plug to enter the dosing chamber to be propped against the inner wall of the dosing chamber after penetrating through the sealing plug, so that automatic needle point positioning and limiting of the needle point during manual dosing operation are realized, and other mental management and judgment regulations are not needed.
After the needle point penetrates into the sealing plug and is propped against the inner wall of the dosing chamber, two-stage secondary turbulence is formed on the fluid in the dosing chamber, firstly, the position of the needle point is between the inlet pipeline and the outlet pipeline of the dosing chamber, an included angle is formed between the needle point and the liquid inlet pipeline, the upstream liquid firstly impacts the needle point to form turbulence after entering the dosing chamber, and secondly, the liquid impacts the inner wall of the dosing chamber again to form secondary turbulence and mixed flow, so that the purposes of improving the mixing rate of the medicine and reducing the retention of the medicine are achieved.
Drawings
It should be noted that the drawings in the following description are merely exemplary, and that other implementations drawings may be obtained from the drawings provided without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic cross-sectional front view of an infusion drug delivery device according to an embodiment of the present invention.
Fig. 2 is a schematic bottom view of a drug adding device for infusion according to an embodiment of the present invention.
In the figure: the device comprises a base body 1, an exhaust cover 2, a first exhaust film 3, a second exhaust film 4, a sealing plug 5, an inserted needle point 6, a liquid filtering film 7, an impact needle point 8, a needle point limiting top surface 9, a communication pipeline 10, a dosing chamber 11, an input pipeline 12, an exhaust hole 13, an output pipeline 14, a downstream cavity 15, a filtering chamber 16, a first welding line 17a, a second welding line 17b, a medicine 18, an upstream cavity 19 and a needle point limiting dosing bin 20.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and detailed description, but it will be understood by those skilled in the art that the examples described below are some, but not all, examples of the present invention, and are intended to be illustrative of the present invention only and should not be construed as limiting the scope of the present invention.
Example 1
An embodiment 1 of the present invention provides a drug adding device for infusion, referring to fig. 1, including: a base body 1 and a needle tip limiting medicine adding bin 20.
Specifically, a dosing chamber 11 and a filtering chamber 16 are arranged in the base body 1, a communication pipeline 10 is arranged between the dosing chamber 11 and the filtering chamber 16, one end of the communication pipeline 10 is communicated with the dosing chamber 11, the other end of the communication pipeline 10 is communicated with the filtering chamber 16, one end of the base body 1 is provided with an input pipeline 12 communicated with the dosing chamber 11, and the other end is provided with an output pipeline 14 communicated with the filtering chamber 16; the upper and lower both ends of the spacing medicine storehouse 20 of needle point link up, and the spacing medicine storehouse 20 of needle point communicates with the medicine room 11, and the spacing medicine storehouse 20 internal fixation of needle point is equipped with sealing plug 5, and the sealing plug adopts elastic sealing plug, and wherein, after the needle point passed sealing plug 5 and inserted medicine room 11, the pointed end of needle point can be pushed up on the inner wall of medicine room 11. The central axis of the input pipeline 12 intersects with the central axis of the needle tip limit dosing bin 20, so that the liquid flowing into the dosing chamber upstream can intersect with the needle tip penetrating into the dosing chamber. The needle tip limiting medicine adding bin 20 and the basal body 1 are of an integrated structure; the dosing chamber 11 has a depth to diameter ratio of between 3:1 and 1:1.
When the automatic medicine feeding device is used, firstly, the striking needle tip 8 pierces the elastic sealing plug 5 and then touches the needle tip limiting top surface 9 of the medicine feeding chamber, so that automatic positioning or needle tip limiting of the striking needle tip 8 during manual medicine feeding operation is realized, whether the position of the striking needle tip 8 is at a reasonable depth or not is not manually controlled and judged, other mental management and judgment regulations are not needed, and the efficiency and the portability standard of use are improved; secondly, the liquid flowing into the dosing chamber from the input pipeline 12 forms a primary turbulence factor after the dosing needle tip 6 pierces the elastic sealing plug 5, and the primary turbulence factor is specifically expressed as follows: the position of the puncture needle tip 6 is between the communicating pipelines 10 of the dosing chamber 11, an included angle of approximately 90 degrees is formed between the impact needle tip 8 and the liquid inlet pipeline 12, the upstream liquid enters the dosing chamber 11 and firstly impacts the needle tip 8 to form turbulence disturbance, after the liquid and the added gas-liquid mixture are fully mixed, the concentration of the medicine is relaxed, the medicine 18 added in the dosing chamber 11 is thoroughly flushed, and the mixed fluid formed by the upstream liquid, the added medicine liquid and the mixed gas enters the downstream filtering chamber 16 through the communicating pipelines.
Example 2
Embodiment 2 of the present invention provides a drug adding device for infusion, referring to fig. 1, comprising: a base body 1 and a needle tip limiting medicine adding bin 20.
Specifically, a dosing chamber 11 and a filtering chamber 16 are arranged in the base body 1, a communication pipeline 10 is arranged between the dosing chamber 11 and the filtering chamber 16, one end of the communication pipeline 10 is communicated with the dosing chamber 11, the other end of the communication pipeline 10 is communicated with the filtering chamber 16, one end of the base body 1 is provided with an input pipeline 12 communicated with the dosing chamber 11, and the other end is provided with an output pipeline 14 communicated with the filtering chamber 16; the upper and lower both ends of the spacing medicine storehouse 20 of needle point link up, and the spacing medicine storehouse 20 of needle point communicates with the medicine room 11, and the spacing medicine storehouse 20 internal fixation of needle point is equipped with sealing plug 5, and the sealing plug adopts elastic sealing plug, and wherein, after the needle point passed sealing plug 5 and inserted medicine room 11, the pointed end of needle point can be pushed up on the inner wall of medicine room 11. The central axis of the input pipeline 12 is intersected with the central axis of the needle point limiting dosing bin 20. The needle tip limiting medicine adding bin 20 and the base body 1 are of an integrated structure. The port of the input pipeline 12 communicated with the dosing chamber 11 and the port of the communication pipeline 10 communicated with the dosing chamber 11 are staggered.
When the automatic medicine feeding device is used, firstly, the striking needle tip 8 pierces the elastic sealing plug 5 and then touches the needle tip limiting top surface 9 of the medicine feeding chamber, so that automatic positioning or needle tip limiting of the striking needle tip 8 during manual medicine feeding operation is realized, whether the position of the striking needle tip 8 is at a reasonable depth or not is not manually controlled and judged, other mental management and judgment regulations are not needed, and the efficiency and the portability standard of use are improved; secondly, the liquid flowing into the dosing chamber from the input pipeline 12 forms a secondary turbulence factor after the dosing needle tip 6 pierces the elastic sealing plug 5, and the secondary turbulence factor is specifically expressed as follows: the position of the needle point 6 is firstly penetrated between the communicating pipelines 10 of the dosing chamber 11, an included angle of approximately 90 degrees is formed between the striking needle point 8 and the liquid inlet pipeline 12, the upstream liquid firstly strikes the needle point 8 to form turbulence disturbance after entering the dosing chamber 11, secondly, as the port of the input pipeline 12 communicated with the dosing chamber 11 and the port of the communicating pipeline 10 communicated with the dosing chamber 11 are staggered, the liquid again strikes the side wall opposite to the liquid inlet pipe orifice in the dosing chamber 11 to form second turbulence and mixed flow, and after the liquid and the added gas-liquid mixture are fully mixed again, the concentration of the medicine is again eased and the added medicine 18 in the dosing chamber 11 is thoroughly flushed, and the mixed fluid formed by the upstream liquid, the added medicine and the mixed gas enters the downstream filtering chamber 16 through the communicating pipeline.
Example 3
Embodiment 3 of the present invention provides a drug adding device for infusion, referring to fig. 1, comprising: a base body 1 and a needle tip limiting medicine adding bin 20. The inside of the matrix 1 is provided with a dosing chamber 11 and a filtering chamber 16, a communication pipeline 10 is arranged between the dosing chamber 11 and the filtering chamber 16, one end of the communication pipeline 10 is communicated with the dosing chamber 11, the other end of the communication pipeline 10 is communicated with the filtering chamber 16, one end of the matrix 1 is provided with an input pipeline 12 communicated with the dosing chamber 11, and the other end is provided with an output pipeline 14 communicated with the filtering chamber 16; the upper and lower both ends of the spacing medicine storehouse 20 of needle point link up, and the spacing medicine storehouse 20 of needle point communicates with the medicine room 11, and the spacing medicine storehouse 20 internal fixation of needle point is equipped with sealing plug 5, and the sealing plug adopts elastic sealing plug, and wherein, after the needle point passed sealing plug 5 and inserted medicine room 11, the pointed end of needle point can be pushed up on the inner wall of medicine room 11. The central axis of the input pipeline 12 is intersected with the central axis of the needle point limiting dosing bin 20. The needle tip limiting medicine adding bin 20 and the base body 1 are of an integrated structure. The port of the input pipeline 12 communicated with the dosing chamber 11 and the port of the communication pipeline 10 communicated with the dosing chamber 11 are staggered.
Specifically, a liquid filtering membrane 7 is arranged in the filtering chamber 16, the liquid filtering membrane 7 divides the inside of the filtering chamber 16 into an upstream cavity 19 and a downstream cavity 15, and the upstream cavity 19 is communicated with the dosing chamber 11 through a communication pipeline 10; the top of the upstream cavity 19 is provided with an opening, an exhaust cover 2 is covered on the opening, the exhaust cover 2 and the base body 1 are buckled to form an integral structure, the top of the exhaust cover 2 is provided with an exhaust hole 13 penetrating through the bottom, and the bottom of the exhaust cover 2 is provided with an exhaust film for sealing the exhaust hole 13.
When the automatic medicine feeding device is used, firstly, the striking needle tip 8 pierces the elastic sealing plug 5 and then touches the needle tip limiting top surface 9 of the medicine feeding chamber, so that automatic positioning or needle tip limiting of the striking needle tip 8 during manual medicine feeding operation is realized, whether the position of the striking needle tip 8 is at a reasonable depth or not is not manually controlled and judged, other mental management and judgment regulations are not needed, and the efficiency and the portability standard of use are improved; secondly, the liquid flowing into the dosing chamber from the input pipeline 12 forms a secondary turbulence factor after the dosing needle tip 6 pierces the elastic sealing plug 5, and the secondary turbulence factor is specifically expressed as follows: the position of the needle point 6 is firstly penetrated between the communicating pipelines 10 of the dosing chamber 11, an included angle of approximately 90 degrees is formed between the striking needle point 8 and the liquid inlet pipeline 12, the upstream liquid firstly strikes the needle point 8 to form turbulence disturbance after entering the dosing chamber 11, secondly, as the port of the input pipeline 12 communicated with the dosing chamber 11 and the port of the communicating pipeline 10 communicated with the dosing chamber 11 are staggered, the liquid again strikes the side wall opposite to the liquid inlet pipe orifice in the dosing chamber 11 to form second turbulence and mixed flow, and after the liquid and the added gas-liquid mixture are fully mixed again, the concentration of the medicine is again eased and the added medicine 18 in the dosing chamber 11 is thoroughly flushed, and the mixed fluid formed by the upstream liquid, the added medicine and the mixed gas enters the downstream filtering chamber 16 through the communicating pipeline.
Liquid entering the filter chamber 16 through the communication pipeline firstly enters the upstream cavity 19, passes through the liquid filter membrane 7 and enters the downstream cavity 15, gas is blocked in the upstream cavity 19 due to liquid tension, and the gas accumulated in the upstream cavity 19 passes through the exhaust membrane fixed on the exhaust cover 2 and enters the exhaust hole 13 and is discharged out of the integral device; the lower edge of the exhaust cover 2 is annular, and ribs protrude outward from the outer surface of the annular shape, and serve as first weld lines 17a which are sealing rings for sealing the exhaust cover and the body and which are capable of melting.
The dosing chamber 11 and the filtering chamber 16 are of a rigid integral connection structure, as shown in fig. 2, the shape of the dosing chamber is similar to that of a flat gourd, the dosing chamber is much smaller than the filtering chamber, an accompanying structure similar to a mother and a child is formed, a large gourd part is convenient to hold by hand, the small end is exposed, the operation of striking the needle point 8 is completed more quickly and reliably, and the dosing dead angle is realized by unifying clinical specifications.
The central top 22 of the vent cover is arranged higher than the periphery of the vent cover, and the central top is designed with radial grooves 21 radially converging with the central vent hole 13 of the vent cover.
In addition, the exhaust cover 2, the base body 1 and the filtering membrane 7 are designed to be welded at one time, three parts are fixed by heat sealing, namely, the side wall of the exhaust cover 2 and the inner wall of the base body 1 are welded and sealed to form a first welding line 17a, and the lower end face of the exhaust cover 2 and the filtering membrane 7 are pressed and welded to form a second welding line 17b.
Through the design of the structure mode, all the medicines are added in the infusion process to obtain the standard, safe and rapid operation, the medicines are fully and rapidly mixed and then injected into a human body, and the three-in-one evolutionary layout structure of needle tip limiting type site medicine adding, degassing, filtering and the like and the handle type holding operation mode are realized.
Example 4
The embodiment 4 of the present invention provides a drug adding device for infusion, which is substantially the same as embodiment 3, except that, as shown in fig. 1, a stepped groove is provided at the bottom of the exhaust cover 2, the exhaust hole 13 is provided in the stepped groove, the exhaust film comprises a first exhaust film 3 and a second exhaust film 4, the first step of the stepped groove is provided with the first exhaust film 3, and the second step of the stepped groove is provided with the second exhaust film 4, so as to achieve the purpose of better filtering the liquid exhaust gas.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (6)
1. An infusion drug delivery device, comprising:
the device comprises a base body, wherein a dosing chamber and a filtering chamber are formed in the base body, a communication pipeline is arranged between the dosing chamber and the filtering chamber, one end of the communication pipeline is communicated with the dosing chamber, the other end of the communication pipeline is communicated with the filtering chamber, an input pipeline communicated with the dosing chamber is formed at one end of the base body, and an output pipeline communicated with the filtering chamber is formed at the other end of the base body; and
the needle point limiting dosing bin is communicated with the dosing chamber at the upper end and the lower end, and a sealing plug is fixedly arranged in the needle point limiting dosing bin, wherein after the needle point penetrates through the sealing plug and is inserted into the dosing chamber, the tip end of the needle point can prop against the inner wall of the dosing chamber; the central axis of the input pipeline is intersected with the central axis of the needle point limiting dosing bin; the port of the input pipeline communicated with the dosing chamber and the port of the communication pipeline communicated with the dosing chamber are staggered.
2. The infusion drug-feeding device according to claim 1, wherein a liquid filtering membrane is arranged in the filtering chamber, the liquid filtering membrane divides the inside of the filtering chamber into an upstream cavity and a downstream cavity, and the upstream cavity is communicated with the drug-feeding chamber through a communication pipeline;
the top of the upstream cavity is provided with an opening, an exhaust cover is covered on the opening, the top of the exhaust cover is provided with an exhaust hole penetrating through the bottom, and the bottom of the exhaust cover is provided with an exhaust film for sealing the exhaust hole.
3. The infusion medicine feeding device according to claim 2, wherein the bottom of the exhaust cover is provided with a stepped groove, the exhaust hole is arranged in the stepped groove, the exhaust film comprises a first exhaust film and a second exhaust film, the first step of the stepped groove is provided with the first exhaust film, and the second step of the stepped groove is provided with the second exhaust film.
4. The infusion drug delivery device of claim 2, wherein the vent cap is snap-fit to the base in a unitary structure.
5. The infusion drug delivery device of claim 1, wherein the base is in a flattened gourd configuration, the drug delivery chamber is in a large head of the gourd configuration, and the filter chamber is in a small head of the gourd configuration.
6. The infusion drug delivery device of claim 1, wherein the needle tip limiting drug delivery cartridge is integrally formed with the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111241551.3A CN113941047B (en) | 2021-10-25 | 2021-10-25 | Medicine adding device for transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111241551.3A CN113941047B (en) | 2021-10-25 | 2021-10-25 | Medicine adding device for transfusion |
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| Publication Number | Publication Date |
|---|---|
| CN113941047A CN113941047A (en) | 2022-01-18 |
| CN113941047B true CN113941047B (en) | 2024-01-30 |
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| CN202111241551.3A Active CN113941047B (en) | 2021-10-25 | 2021-10-25 | Medicine adding device for transfusion |
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| CN204709644U (en) * | 2015-03-31 | 2015-10-21 | 王学博 | A kind of Non-needle dosing T-junction valve for infusing |
| CN106902412A (en) * | 2015-12-23 | 2017-06-30 | 黄超 | Automatically exhaust stops liquid precision filter infusion set to a kind of single use |
| CN111481769A (en) * | 2020-05-25 | 2020-08-04 | 江苏康进医疗器材有限公司 | Medicine adding piece for transfusion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104334215B (en) * | 2012-03-29 | 2017-05-17 | 金普奥膜科技（杭州）有限公司 | Needle filter apparatus |
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2021
- 2021-10-25 CN CN202111241551.3A patent/CN113941047B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272300A (en) * | 2013-05-23 | 2013-09-04 | 贾宇东 | Infusion safety degassing insurance system structure |
| CN204709644U (en) * | 2015-03-31 | 2015-10-21 | 王学博 | A kind of Non-needle dosing T-junction valve for infusing |
| CN106902412A (en) * | 2015-12-23 | 2017-06-30 | 黄超 | Automatically exhaust stops liquid precision filter infusion set to a kind of single use |
| CN111481769A (en) * | 2020-05-25 | 2020-08-04 | 江苏康进医疗器材有限公司 | Medicine adding piece for transfusion |
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| CN113941047A (en) | 2022-01-18 |
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