CN113813470B - High-efficiency microbubble-removing infusion apparatus - Google Patents
High-efficiency microbubble-removing infusion apparatus Download PDFInfo
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- CN113813470B CN113813470B CN202111086799.7A CN202111086799A CN113813470B CN 113813470 B CN113813470 B CN 113813470B CN 202111086799 A CN202111086799 A CN 202111086799A CN 113813470 B CN113813470 B CN 113813470B
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- 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
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- 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
- A61M5/38—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 using hydrophilic or hydrophobic filters
-
- 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
- A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
-
- 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
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
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- 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 high-efficiency microbubble-removing infusion apparatus which comprises a puncture outfit, a dropping funnel, an infusion catheter, a flow regulator and an infusion needle, wherein the puncture outfit, the dropping funnel, the flow regulator and the infusion needle are all connected through the infusion catheter, a Z-shaped pipe is arranged on the infusion catheter between the dropping funnel and the flow regulator and comprises a liquid inlet straight pipe section, an inclined pipe section and a liquid outlet straight pipe section, the joint of the inclined pipe section and the liquid outlet straight pipe section is an elbow, an air filtering membrane is arranged in the elbow, the air filtering membrane divides the space in the elbow into an air suction cavity and a liquid through cavity, a negative pressure suction apparatus is arranged on the outer side of the elbow, and the negative pressure suction apparatus is connected with the air suction cavity in the elbow through a connecting pipe. The invention can completely realize air filtration during transfusion, effectively remove microbubbles generated in liquid medicine during transfusion, and has high removal efficiency and stable performance.
Description
The technical field is as follows:
the invention relates to the technical field of infusion sets, in particular to an efficient microbubble-removing infusion set.
Background art:
in the clinical treatment of hospitals, a transfusion device is often used for carrying out venous transfusion on patients, in order to prevent air bubbles in liquid medicine from being input into the bodies of the patients to cause artery obstruction, the conventional transfusion devices are provided with an exhaust structure, or medical workers exhaust air before injection, most of air bubbles in the liquid medicine can be exhausted by the methods, but because some liquid medicines, particularly some traditional Chinese medicine injection liquids, contain fructose, resin or saponin components and have strong foamability, due to the difference of liquid medicine storage and use environments, the liquid medicine is in a gas supersaturated solution state due to the temperature change of the liquid medicine in the transfusion process, gas can be slowly separated out all the time, so that a plurality of micro air bubbles which cannot be observed by naked eyes exist in the liquid medicine, and the micro air bubbles can slowly remain in a liquid medicine filter due to slow flow speed in the transfusion process and form larger air bubbles in a combined manner to cause damage to the human bodies. The patent number is ZL202022331008.X provides a general drainage, the infusion connects, including the transfer line, filtration membrane and membrane lid, set up the exhaust passage with transfer line inner chamber intercommunication on the circumference lateral wall of transfer line, the filtration membrane interception is in exhaust passage, the joint of membrane lid is on exhaust passage's inner wall, and the membrane lid blocks the one side of keeping away from the transfer line inner chamber at filtration membrane, the air vent has been seted up on the membrane lid, the air vent is used for communicateing exhaust passage and external, set up exhaust passage and installation filtration membrane through the lateral wall at the transfer line, the transfer line can discharge the air in the transmission liquid automatically. But this kind of structure sets up filtration membrane at the transfer line lateral wall, because the liquid medicine direct current passes through the transfer line in the infusion process, only has a small part of liquid medicine through slow-flowing groove and with filtration membrane contact, filters through the liquid pressure in the transfer line, leads to not only unable complete realization filtration, and under the filterable inefficiency, is difficult to guarantee the exhaust effect to the microbubble.
The invention content is as follows:
technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-efficiency microbubble-removing infusion set, which solves the problems that the existing infusion set cannot completely realize air filtration, has low filtration efficiency and is difficult to ensure the discharge effect of tiny bubbles in liquid medicine.
(II) technical scheme
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a microbubble transfusion system is removed to high efficiency, includes puncture ware, dropping funnel, infusion pipe, flow regulator and transfusion needle, the puncture ware the dropping funnel flow regulator with the transfusion needle by infusion pipe connects, the dropping funnel with between the flow regulator be equipped with Z type pipe on the infusion pipe, Z type pipe includes feed liquor straight tube section, pipe chute section and goes out the liquid straight tube section, the pipe chute section with it is the elbow to go out liquid straight tube section junction, be equipped with filtration membrane in the elbow, filtration membrane will space separation in the elbow is for breathing in the chamber and leads to the liquid chamber, the outside of elbow is equipped with the vacuum aspiration ware, the vacuum aspiration ware with in the elbow the chamber of breathing in passes through the connecting pipe and connects.
The puncture outfit is used for penetrating an infusion bottle to introduce liquid medicine into the infusion catheter, the infusion needle is connected with a vein of a patient, during infusion, the Z-shaped pipe is vertically placed along with the infusion catheter hung up, the negative pressure suction apparatus is arranged above the elbow and used for providing negative pressure for the suction cavity, the liquid medicine flows through the elbow through the liquid inlet straight pipe section and the inclined pipe section and is fully contacted with the air filtering membrane, due to the filtering effect of the air filtering membrane, micro bubbles in the liquid medicine enter the suction cavity through the air filtering membrane under the combined action of factors such as the liquid pressure of the liquid medicine, the buoyancy of the bubbles, the negative pressure suction in the suction cavity and the like, the filtered liquid medicine enters the blood vessel of the patient through the liquid outlet straight pipe section, and the micro bubbles in the liquid medicine are discharged efficiently.
Furthermore, the negative pressure aspirator comprises a corrugated compression bottle, a one-way air outlet valve is arranged on the corrugated compression bottle, and a one-way air inlet valve is arranged in the connecting pipe. The corrugated compression bottle is convenient for medical personnel to manually compress so as to manufacture negative pressure at any time, the one-way air outlet valve enables gas in the corrugated compression bottle to be discharged by the one-way air outlet valve, the one-way air inlet valve enables the gas in the air suction cavity to enter the corrugated compression bottle in a one-way mode, and the corrugated compression bottle is convenient to compress and suck air in a circulating mode.
Furthermore, a flow control plate is arranged in the inclined pipe section, a flow control hole is formed in the flow control plate, a swing rod is rotatably connected to the flow control plate, a swing ball is arranged at the top end of the swing rod, and the diameter of the swing ball is smaller than that of the flow control hole. Flow through liquid medicine process in the pipe chute section accuse flow hole, the pendulum ball is used for automatic control the flow area in accuse flow hole, when the liquid medicine velocity of flow is very fast, the impact force of liquid is great, will pendulum ball jack-up makes the flow area in accuse flow hole reduces, and when the liquid medicine velocity of flow is slow, the impact force of liquid is less, the pendulum ball falls under self gravity, the flow area grow in accuse flow hole so with the flow of stabilizing the liquid medicine, avoid the too big or undersize of flow to lead to the infusion not smooth or produce too much bubble.
Furthermore, a flow isolating plate is arranged at the joint of the liquid outlet straight pipe section and the elbow, and a flow guide block and a through flow hole are arranged on the flow isolating plate. The flow guide block is used for guiding the flow direction entering the elbow through the inclined pipe section and flowing into the liquid flowing cavity, so that the liquid flows to the air filtering membrane, and meanwhile, the micro bubbles in the liquid medicine are fully separated, and the micro bubbles in the liquid medicine are more fully filtered.
Furthermore, the flow guide block is slidably arranged on the flow partition plate, a sliding groove is formed in the flow partition plate, a sliding block matched with the sliding groove is arranged on the flow guide block, a baffle plate extending into the through hole is arranged on the sliding block, and a return spring is connected between the sliding block and the side face of the sliding groove. The water conservancy diversion piece can be along under liquid pressure's promotion when the liquid medicine velocity of flow is very fast the flow partition plate removes, this moment the slider is overcome the power of replying the spring removes, the baffle stretches into reduce in the through-flow hole the through-flow area of through-flow hole, when the liquid velocity of flow is slow, the water conservancy diversion piece is then the effect of replying the spring moves back down to stabilize the liquid medicine flow more effectively.
Furthermore, the top of the flow guide block is arc-shaped, so that the principle of fluid mechanics is met, and the liquid medicine is prevented from generating vortex and bubbles after flowing through the flow guide block.
Furthermore, a micropore filter screen is arranged in the liquid inlet straight pipe section. The micropore filter screen can filter out the impurity with larger size in the liquid medicine, and ensures the purity of the liquid medicine input into the patient.
Furthermore, a backflow prevention valve is arranged in the liquid outlet straight pipe section to prevent backflow during infusion.
(III) the beneficial effects are that:
compared with the prior art, the invention has the beneficial effects that: through set up Z type pipe at infusion pipe, Z type pipe includes the feed liquor straight tube section, the pipe chute section with go out the liquid straight tube section, the pipe chute section is the elbow with play liquid straight tube section junction, set up filtration membrane in the elbow, the outside of elbow sets up the negative pressure aspirator, the negative pressure aspirator passes through the connecting pipe with the chamber of breathing in the elbow and is connected, when the liquid medicine during infusion flows through the elbow, under the combined action of factors such as the liquid pressure of liquid medicine, bubble self buoyancy, the negative pressure in the chamber of breathing in, fully contact with filtration membrane, the microbubble in the liquid medicine is filtered through the filtration membrane, effectively guarantee the discharge effect to microbubble in the liquid medicine.
Description of the drawings:
in order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a Z-shaped tube portion of the present invention;
FIG. 3 is an enlarged partial cross-sectional view of the deflector block portion of the present invention;
FIG. 4 is an enlarged partial cross-sectional view of the flow control plate portion of the present invention;
in the figure: 1. a puncture instrument; 2. an infusion catheter; 3. a dropping funnel; 4. a flow regulator; 5. an infusion needle; 6. a Z-shaped pipe; 61. a flow inlet straight pipe section; 62. an oblique pipe section; 63. an outflow straight pipe section; 7. bending the pipe; 8. an air filtration membrane; 9. an air suction cavity; 10. a liquid cavity is communicated; 11. a negative pressure aspirator; 111. a corrugated compression bottle; 112. a one-way air outlet valve; 12. a connecting pipe; 13. a one-way air inlet valve; 14. a flow control plate; 15. a flow control hole; 16. a swing rod; 17. placing a ball; 18. a flow isolating plate; 19. a flow guide block; 20. a through-flow aperture; 21. a chute; 22. a slider; 23. a baffle plate; 24. a return spring; 25. a microporous filter screen; 26. an anti-regurgitation valve;
the specific implementation mode is as follows:
the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The high-efficiency microbubble-removing infusion apparatus shown in fig. 1, 2, 3 and 4 comprises a puncture outfit 1, a dropping funnel 3, an infusion catheter 2, a flow regulator 4 and an infusion needle 5, wherein the puncture outfit 1, the dropping funnel 3, the flow regulator 4 and the infusion needle 5 are all connected through the infusion catheter 2, a Z-shaped pipe 6 is arranged on the infusion catheter 2 between the dropping funnel 3 and the flow regulator 4, the Z-shaped pipe 6 comprises a liquid inlet straight pipe section 61, an inclined pipe section 62 and a liquid outlet straight pipe section 63, the joint of the inclined pipe section 62 and the liquid outlet straight pipe section 63 is an elbow 7, an air filtering membrane 8 is arranged in the elbow 7, the air filtering membrane 8 divides the space in the elbow 7 into an air suction cavity 9 and a liquid through cavity 10, a negative pressure suction apparatus 11 is arranged on the outer side of the elbow 7, and the air suction cavity 9 in the elbow 7 is connected through a connecting pipe 12 by the negative pressure suction apparatus 11.
Preferably, the negative pressure aspirator 11 comprises a corrugated compression bottle 111, a one-way air outlet valve 112 is arranged on the corrugated compression bottle 111, and a one-way air inlet valve 13 is arranged in the connecting pipe 12. Corrugated compression bottle 111 is convenient for medical personnel manual compression to make the negative pressure at any time, one-way air outlet valve 112 makes the gaseous one-way exhaust by one-way air outlet valve 112 in corrugated compression bottle 111, and one-way valve 13 that admits air makes the gaseous one-way entering corrugated compression bottle 111 in the chamber 9 of breathing in, conveniently realizes that the cyclic compression of corrugated compression bottle 111 breathes in.
Preferably, a flow control plate 14 is arranged in the inclined pipe section 62, a flow control hole 15 is formed in the flow control plate 14, a swing rod 16 is rotatably connected to the flow control plate 14, a swing ball 17 is arranged at the top end of the swing rod 16, and the diameter of the swing ball 17 is smaller than that of the flow control hole 15. The liquid medicine in the oblique pipeline section 62 of flowing through is through accuse discharge orifice 15, pendulum ball 17 is used for the through flow area of automatic control accuse discharge orifice 15, when the liquid medicine velocity of flow is very fast, the impact force of liquid is great, will pendulum ball 17 jack-up make the through flow area of accuse discharge orifice 15 reduce, when the liquid medicine velocity of flow is slow, the impact force of liquid is less, pendulum ball 17 falls down under self gravity, the through flow area grow of accuse discharge orifice 15, so with the flow of stabilizing the liquid medicine, avoid the too big or undersize of flow to lead to the infusion not smooth or produce too much bubble.
Preferably, a flow separation plate 18 is arranged at the joint of the liquid outlet straight pipe section 63 and the elbow 7, and a flow guide block 19 and a through flow hole 20 are arranged on the flow separation plate 18. The flow guide block 19 is used for guiding the liquid flow direction entering the liquid through cavity 10 in the elbow 7 through the inclined pipe section 62, so that the liquid flows to the air filtering membrane 8, and simultaneously, the micro-bubbles in the liquid medicine are fully separated, so as to ensure that the micro-bubbles in the liquid medicine are filtered more fully.
Preferably, the flow guiding block 19 is slidably disposed on the flow dividing plate 18, a sliding groove 21 is disposed in the flow dividing plate 18, a sliding block 22 engaged with the sliding groove 21 is disposed on the flow guiding block 19, a baffle 23 extending into the through-flow hole 20 is disposed on the sliding block 22, and a return spring 24 is connected between the sliding block 22 and a side surface of the sliding groove 21. When the flow velocity of the liquid medicine is high, the flow guide block 19 moves along the flow partition plate 18 under the pushing of the liquid pressure, at the moment, the slide block 22 moves against the force of the return spring 24, the baffle plate 23 extends into the through hole 20 to reduce the flow area of the through hole 20, and when the flow velocity of the liquid is low, the flow guide block 19 moves back under the force of the return spring 24 to more effectively stabilize the flow of the liquid medicine.
Preferably, the top of the flow guiding block 19 is circular arc-shaped, which conforms to the fluid mechanics principle and avoids the generation of vortex and bubbles after the liquid medicine flows through the flow guiding block 19.
Preferably, a microporous filter screen 25 is arranged in the liquid inlet straight pipe section 61. The microporous filter screen 25 can filter out the impurities with larger size in the liquid medicine, and ensure the purity of the liquid medicine input into the patient.
Preferably, the liquid outlet straight pipe section 63 is internally provided with a backflow prevention valve 26 for preventing backflow during transfusion.
The use method of the high-efficiency microbubble-removing infusion set comprises the following steps:
the puncture outfit 1 is penetrated into an infusion bottle to introduce liquid medicine into the infusion catheter 2, the infusion needle 5 is connected with a venous vessel of a patient, the infusion catheter 2 is hung up during infusion, the Z-shaped tube 6 is vertically placed along with the hanging of the infusion catheter 2, the negative pressure aspirator 11 is ensured to be positioned above the elbow 7, the corrugated compression bottle 111 is manually compressed to provide negative pressure into the air suction cavity 9, the liquid medicine flows through the elbow 7 through the liquid inlet straight tube section 61 and the inclined tube section 62 and is fully contacted with the air filtering membrane 8, due to the filtering effect of the air filtering membrane 8, under the combined action of factors of liquid pressure of the liquid medicine, buoyancy of bubbles, negative pressure suction in the air suction cavity 9 and the like, micro bubbles in the liquid medicine enter the air suction cavity 9 through the air filtering membrane 8, the filtered liquid medicine enters the blood vessel of the patient through the liquid outlet straight tube section 63, and efficient discharge of the micro bubbles in the liquid medicine is realized.
In conclusion, the high-efficiency microbubble-removing infusion set provided by the invention solves the problems that the existing infusion set cannot completely realize air filtration, and the drainage effect of tiny bubbles in liquid medicine is difficult to ensure due to low filtration efficiency.
The present invention has been described above by way of example, but the present invention is not limited to the above specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.
Claims (6)
1. The utility model provides a microbubble transfusion system is removed to high efficiency, includes puncture ware, dropping funnel, infusion pipe, flow regulator and transfusion needle, the puncture ware the dropping funnel flow regulator with the transfusion needle by infusion pipe connects its characterized in that: the utility model discloses a novel infusion set, including infusion pipe, drip chamber, flow regulator, infusion pipe, filtration membrane, flow guide piece, flow baffle, drip chamber and flow regulator, be equipped with Z type pipe on the infusion pipe between the flow regulator, Z type pipe includes feed liquor straight tube section, chute section and goes out the liquid straight tube section, chute section with it is the elbow to go out liquid straight tube section junction, be equipped with filtration membrane in the elbow, filtration membrane will space separation in the elbow is for breathing in chamber and logical sap cavity, the outside of elbow is equipped with the vacuum aspiration ware, the vacuum aspiration ware with in the elbow the chamber of breathing in passes through the connecting pipe and connects, go out the liquid straight tube section with the elbow junction is equipped with the flow baffle, be equipped with water conservancy diversion piece and discharge orifice on the flow baffle, water conservancy diversion piece slidable ground sets up on the flow baffle, be equipped with in the flow baffle, be equipped with the answer spring on the flow baffle, the slider with be connected with between the side of spout.
2. The high-efficiency microbubble-removing infusion set according to claim 1, wherein: the negative pressure aspirator comprises a corrugated compression bottle, a one-way air outlet valve is arranged on the corrugated compression bottle, and a one-way air inlet valve is arranged in the connecting pipe.
3. The high-efficiency microbubble-removing infusion set according to claim 1, wherein: the inclined pipe section is internally provided with a flow control plate, the flow control plate is provided with a flow control hole, the flow control plate is rotatably connected with a swing rod, the top end of the swing rod is provided with a swing ball, and the diameter of the swing ball is smaller than that of the flow control hole.
4. The high-efficiency microbubble-removing infusion set according to claim 1, wherein: the top of the flow guide block is arc-shaped.
5. The high-efficiency microbubble-removing infusion set according to claim 1, wherein: and a micropore filter screen is arranged in the liquid inlet straight pipe section.
6. The high-efficiency microbubble-removing infusion set according to claim 1, wherein: an anti-backflow valve is arranged in the liquid outlet straight pipe section.
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| CN202111086799.7A CN113813470B (en) | 2021-09-16 | 2021-09-16 | High-efficiency microbubble-removing infusion apparatus |
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| CN202111086799.7A CN113813470B (en) | 2021-09-16 | 2021-09-16 | High-efficiency microbubble-removing infusion apparatus |
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| CN113813470B true CN113813470B (en) | 2023-04-07 |
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| CN117159840B (en) * | 2023-11-03 | 2024-01-05 | 吉林大学 | Accurate transfusion system based on bubble filtering is carried out in automatic pressure release |
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| WO2006055834A2 (en) * | 2004-11-19 | 2006-05-26 | Curlin Medical Inc. | Controlled-volume infusion device |
| EP2179758A2 (en) * | 2008-10-10 | 2010-04-28 | Tema Sinergie S.r.l. | Device and apparatus for fractionation and infusion of radioactive drugs |
| WO2015125563A1 (en) * | 2014-02-21 | 2015-08-27 | 大研医器株式会社 | Drug solution injection device |
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| JP2004275466A (en) * | 2003-03-17 | 2004-10-07 | Terumo Corp | Medical solution injector |
| CN101543651A (en) * | 2008-10-07 | 2009-09-30 | 李林风 | Automatic exhaust safety transfusion device |
| CN201930309U (en) * | 2010-12-06 | 2011-08-17 | 江西洪达医疗器械集团有限公司 | Bubble-free anti-bleed-return infusion set |
| CN202236571U (en) * | 2011-07-07 | 2012-05-30 | 李林风 | Safe infusion apparatus for improving exhaust of dropping funnel |
| US20150018765A1 (en) * | 2013-07-09 | 2015-01-15 | Welford Manufacturing (M) SDN BHD | Infusion set that prevents air entry into infusion tubing |
| CN104474603A (en) * | 2014-12-26 | 2015-04-01 | 北京伏尔特技术有限公司 | Self-exhausting, liquid-stopping and liquid-purifying infusion apparatus and safe infusion method thereof |
| CN106860953A (en) * | 2017-04-13 | 2017-06-20 | 王辉 | A kind of automatic exhaust automatic liquid-stopping sensitive blood returning transfusion system tool and its technical scheme |
| CN208958962U (en) * | 2018-08-29 | 2019-06-11 | 杭州市第一人民医院 | A kind of medical Transfusion device |
| WO2021086043A2 (en) * | 2019-11-01 | 2021-05-06 | 김용현 | Medicinal liquid supply control device, reservoir assembly for medicinal liquid supply control device, and medicinal liquid injection apparatus comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006055834A2 (en) * | 2004-11-19 | 2006-05-26 | Curlin Medical Inc. | Controlled-volume infusion device |
| EP2179758A2 (en) * | 2008-10-10 | 2010-04-28 | Tema Sinergie S.r.l. | Device and apparatus for fractionation and infusion of radioactive drugs |
| WO2015125563A1 (en) * | 2014-02-21 | 2015-08-27 | 大研医器株式会社 | Drug solution injection device |
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