CN111388800A - Self-stopping precise infusion apparatus - Google Patents
Self-stopping precise infusion apparatus Download PDFInfo
- Publication number
- CN111388800A CN111388800A CN202010190011.6A CN202010190011A CN111388800A CN 111388800 A CN111388800 A CN 111388800A CN 202010190011 A CN202010190011 A CN 202010190011A CN 111388800 A CN111388800 A CN 111388800A
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- Prior art keywords
- liquid
- drip cup
- drip
- communicated
- stopping
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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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16822—Flow controllers by controlling air intake into infusion reservoir
-
- 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
- A61M5/14—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
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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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a self-stopping liquid precise infusion apparatus, which comprises a bottle stopper puncture outfit, wherein the bottle stopper puncture outfit is communicated with a first infusion tube, the first infusion tube is communicated with an upper cover of a drip cup, one end of the upper cover of the drip cup is clamped with a lower cover of the drip cup, an anti-bubble net is fixed in the lower cover of the drip cup, a liquid stopping precise filtering membrane is arranged above the anti-bubble net, a liquid outlet channel is integrally formed in the middle of the lower end of the lower cover of the drip cup, the liquid outlet channel is communicated with a second infusion tube, a flow regulator is sleeved on the second infusion tube, the other side of the second infusion tube is communicated with a liquid injection piece, the other side of the liquid injection piece is communicated with a third infusion tube, the other side of the third infusion tube is communicated with a luer connector, the luer connector is connected with a venous infusion needle, automatic air exhaust and liquid stopping are realized, the occurrence of a situation that a, convenient manufacture, low cost and good safety.
Description
Technical Field
The invention belongs to the technical field of infusion sets, and particularly relates to a self-stopping precise infusion set.
Background
The infusion apparatus is a common medical consumable, and a channel between a vein and liquid medicine is established through aseptic treatment for intravenous infusion. Generally, the infusion apparatus is formed by connecting eight parts, namely a vein needle or an injection needle, a needle head protective cap, an infusion hose, a luer connector, a flow rate regulator, a drip cup, a bottle stopper puncture outfit, an air filter and the like, and a part of the infusion apparatus also comprises an injection part, a medicine adding port and the like.
In the actual clinical infusion process, medical staff need to look after infusion of several patients or even several wards at the same time, so that the situation that the infusion bottle is not replaced or the infusion needle is not pulled out timely due to the fact that the medical staff, the patients or the family members of the patients cannot observe that liquid medicine in the infusion bottle or the infusion bottle is completely infused frequently occurs, exhaust is difficult again, even a large amount of blood flows back into a blood vessel, heavy mental burden is brought to the medical staff, the patients or the family members of the patients, and therefore a self-stopping precise infusion apparatus is provided to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a self-stopping precise infusion apparatus, which solves the problems that in the prior art, in the actual clinical infusion process, medical staff needs to take care of infusion of several patients or even several wards at the same time, so that the infusion bottle is not replaced or the infusion needle is pulled out in time due to the fact that the medical staff, the patients or the family members of the patients cannot observe that the liquid medicine in the infusion bottle or the drip cup of the infusion apparatus is completely infused in time, the air is difficult to exhaust again, even a large amount of blood flows back into the blood vessel, and heavy mental burden is brought to the medical staff, the patients or the family members of the patients.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-stopping precise infusion apparatus comprises a bottle stopper puncture outfit, wherein one end of the bottle stopper puncture outfit is communicated with a first infusion tube, one end of the first infusion tube, which is far away from the bottle stopper puncture outfit, is communicated with an upper cover of a drip cup, a drip tube is integrally formed in the middle of the upper cover of the drip cup, the drip tube is communicated with the first infusion tube, a liquid medicine injection port is integrally formed on one side of the upper cover of the drip cup, an exhaust port is integrally formed at one end, which is far away from the liquid medicine injection port, of the upper cover of the drip cup, an exhaust needle is communicated with the lower side of the exhaust port, the drip cup is clamped on the lower side of the upper cover of the drip cup, a lower cover of the drip cup is clamped at one end, which is far away from the upper cover of the drip cup, an anti-bubble net is fixed at the bottom end inside of the lower cover of the drip cup, a stopping precise filtration membrane is fixed at the upper end of the inner part, the liquid outlet channel is communicated with a second infusion tube, the second infusion tube is sleeved with a flow regulator, the other side of the second infusion tube is communicated with a liquid medicine injection piece, the other side of the liquid medicine injection piece is communicated with a third infusion tube, the other side of the third infusion tube is communicated with a luer connector, and the other side of the luer connector is communicated with an intravenous infusion needle.
Preferably, a rubber cap is sleeved on the outer side of the liquid medicine injection port.
Preferably, the inside joint of gas vent has the core vent, be provided with the filter pad between the inside bottom of core vent and gas vent.
Preferably, the flow regulator is provided with a roller, and the outer cylindrical surface of the roller is uniformly provided with anti-skid grains.
Preferably, a first protective sleeve is sleeved outside the bottle stopper puncture outfit, and a second protective sleeve is sleeved outside the intravenous infusion needle.
Preferably, the middle of the bottle stopper puncture outfit is integrally formed with an air inlet pipe, and an outlet of the air inlet pipe is clamped with a blocking cover.
Preferably, a clip is sleeved in the middle of the first infusion tube.
Preferably, the liquid stopping microfiltration membrane is a hydrophilic membrane made of polyether sulfone.
The invention has the technical effects and advantages that: compared with the prior art, the self-stopping precise infusion apparatus provided by the invention has the following advantages:
1. the liquid-stopping precise filter membrane has very small aperture, and the particle size of the filtered particles is 5 mu m, so the liquid-stopping precise filter membrane can play a role in precise filtration. The liquid stopping precise filtering membrane has the function of blocking bubbles, when the membrane is not wetted by water, air can freely pass through the membrane, when the liquid stopping precise filtering membrane is wetted by water, air cannot pass through the membrane surface, and liquid can freely pass through the membrane surface. When the liquid level drops to the membrane surface, the liquid column gravity of the second infusion tube is smaller than the bubble point, which is not enough to pull air through the membrane wetted by the liquid, and the air can not enter the lower second infusion tube. Therefore, venous pressure, liquid column gravity and bubble point pressure of the liquid stopping membrane in the wall of the infusion tube can be balanced, so that liquid medicine is kept standing in the infusion apparatus, an automatic liquid stopping effect is achieved, the liquid stopping precise filtering membrane is of a high-porosity asymmetric structure, large-particle impurities in the liquid medicine can be blocked on the outer surface of the membrane, high-precision membrane holes are prevented from being blocked by large particles, the high-precision membrane hole part of the membrane is fully utilized, and the membrane is ensured to have good flow rate and filtering function while liquid stopping is ensured;
2. according to the invention, air in the drip cup penetrates through the filter pad through the exhaust needle, then penetrates through the exhaust plug, and is finally exhausted from the exhaust port, so that the automatic exhaust of gas in the drip cup is realized, the liquid level of liquid medicine in the drip cup rises continuously, the liquid level does not exhaust any more when rising to the tail end of the exhaust needle, the liquid medicine enters the second infusion tube, the gas in the drip cup can be automatically exhausted, bubbles can be prevented from being generated and entering the infusion pipeline, the liquid level in the drip cup can be automatically controlled at a certain fixed height, the liquid level in the drip cup is prevented from being too high and the dropping speed of the liquid medicine is difficult to observe, the product has a simple structure, safety and reliability, the processing is easy, the operation steps are simplified, and the use habit of an operator is not changed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram showing the positional relationship among the upper cover, the drip cup and the lower cover of the drip cup according to the present invention;
FIG. 3 is a view of the structure of the lower lid of the drip cup of the present invention;
FIG. 4 is a front view of the anti-bubble web of the present invention;
FIG. 5 is a top view of the anti-bubble web of the present invention.
Reference numerals: 1. a bottle stopper puncture outfit; 2. a first infusion tube; 3. an upper cover of the drip cup; 4. a dropper; 5. a liquid medicine injection port; 501. a rubber cap; 6. an exhaust port; 601. a vent plug; 602. a filter pad; 7. an exhaust needle; 8. a drip cup; 9. a lower cover of the drip cup; 10. an anti-bubble net; 11. a liquid outlet channel; 12. a second infusion tube; 13. a flow regulator; 1301. a roller; 1302. anti-skid lines; 14. a liquid medicine injection member; 15. a luer fitting; 16. a third infusion tube; 17. an intravenous infusion needle; 18. a first protective sheath; 19. an air inlet pipe; 20. blocking the cover; 21. a clip; 22. a second protective cover; 23. stopping the liquid precise filtering membrane.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a self-stopping precise infusion apparatus as shown in figures 1-5, which comprises a bottle stopper puncture outfit 1, wherein a first protective sleeve 18 is sleeved outside the bottle stopper puncture outfit 1, so that the bottle stopper puncture outfit 1 is isolated and protected, the bottle stopper puncture outfit 1 is prevented from being polluted by the outside when not in use, meanwhile, the bottle stopper puncture outfit 1 is prevented from stabbing people, so that the isolation and protection effects are achieved, an air inlet pipe 19 is integrally formed in the middle of the bottle stopper puncture outfit 1, outside air enters an infusion container through the air inlet pipe 19, so that the pressure in the infusion container is the same as that in the outside, the smooth discharge of liquid medicine in the infusion container is ensured, a blocking cover 20 is clamped at an outlet of the air inlet pipe 19, and the air inlet pipe 19 is blocked by the blocking cover 20 when not in use, so that;
one end of the bottle stopper puncture outfit 1 is communicated with a first infusion tube 2, a clamp 21 is sleeved in the middle of the first infusion tube 2, the first infusion tube 2 is conveniently fixed, one end of the first infusion tube 2, which is far away from the bottle stopper puncture outfit 1, is communicated with a drip cup upper cover 3, a drip tube 4 is integrally formed in the middle of the drip cup upper cover 3, the drip tube 4 is communicated with the first infusion tube 2, a liquid medicine injection port 5 is integrally formed on one side of the drip cup upper cover 3, liquid medicine is conveniently added into the drip cup 8 through the liquid medicine injection port 5, a rubber cap 501 is sleeved on the outer side of the liquid medicine injection port 5, the liquid medicine injection port 5 is blocked, external foreign matters are prevented from entering the drip cup 8 from the liquid medicine injection port 5 when the bottle stopper puncture outfit is not used, the protective effect is achieved, an exhaust port 6 is integrally formed at one end, which is far away from the liquid medicine injection port 5, of the drip cup upper cover 3, an exhaust plug 601 and a filter pad 602 are arranged, the external foreign matters are prevented from entering the drip cup 8, the lower side of the exhaust port 6 is communicated with an exhaust needle 7, and the drip cup 8 is clamped on the lower side of the drip cup upper cover 3;
a drip cup lower cover 9 is clamped at one end, far away from the drip cup upper cover 3, of the drip cup 8, an anti-bubble net 10 is fixed at the bottom end inside the drip cup lower cover 9, a liquid stopping precise filtering membrane 23 is arranged above the anti-bubble net 10, the liquid stopping precise filtering membrane 23 is fixed at the upper end inside the drip cup lower cover 9, the liquid stopping precise filtering membrane 23 is a polyether sulfone hydrophilic membrane, the aperture of the liquid stopping precise filtering membrane 23 is very small, the particle size of filtering particles is 5 microns, so that the precise filtering function can be achieved, a liquid outlet channel 11 is integrally formed in the middle of the lower end of the drip cup lower cover 9, the liquid outlet channel 11 is communicated with a second liquid conveying pipe 12, a flow regulator 13 is sleeved on the second liquid conveying pipe 12, a roller 1301 is arranged on the flow regulator 13, flow regulation is conveniently achieved through a rolling roller 1301 by hand, the work is facilitated, anti-slip lines 1302 are uniformly arranged on the outer cylindrical surface of the roller 1301, increasing the friction between the fingers and the roller 1301;
12 opposite side intercommunication of second transfer line has liquid medicine injection 14, 14 opposite side intercommunication of liquid medicine injection has third transfer line 16, 16 opposite side intercommunication of third transfer line has luer 15, 15 opposite side intercommunication of luer 15 has venous transfusion needle 17, second protective sheath 22 has been cup jointed to the outside of venous transfusion needle 17, realizes the isolation protection to venous transfusion needle 17, avoids venous transfusion needle 17 to be contaminated by the external world when not using, avoids venous transfusion needle 17 to stab people simultaneously, plays isolation, guard action.
The structure principle is as follows: firstly, taking down the first protective sleeve 18 from the bottle stopper puncture outfit 1, then inserting the bottle stopper puncture outfit 1 into the bottle stopper of the infusion container, without squeezing the drip cup 8 by hands and hanging the drip cup 8 upside down, the liquid medicine automatically enters the drip cup 8 through the first infusion tube 2 under the action of self gravity, and simultaneously the outside air enters the infusion container through the air inlet tube 19, so that the air pressure in the infusion container is the same as that in the outside, and the liquid medicine in the infusion container is ensured to be discharged smoothly;
the liquid-stopping microfiltration membrane 23 has a very small pore diameter, and can perform a microfiltration function because the particle diameter of the filtrate particles is 5 μm. The liquid-stopping microfiltration membrane 23 has a bubble-blocking function, and when the membrane is not wetted with water, air can freely pass through the membrane, and when the liquid-stopping microfiltration membrane 23 is wetted with water, air cannot pass through the membrane surface, and liquid can freely pass through the membrane surface. When the liquid level drops to the membrane level, the liquid column gravity of the second infusion tube 12 is less than the bubble point and is insufficient to pull air through the membrane wetted by the liquid, and the air cannot enter the lower second infusion tube 12. Therefore, the venous pressure, the liquid column gravity and the bubble point pressure of the liquid stopping film in the wall of the infusion tube can be balanced, so that the liquid medicine is kept still in the infusion apparatus, and the automatic liquid stopping effect is achieved;
the liquid stopping precise filtering membrane 23 is of a high-porosity asymmetric structure, large-particle impurities in liquid medicine can be blocked on the outer surface of the membrane, high-precision membrane holes are prevented from being blocked by large particles, the high-precision membrane hole part of the membrane is fully utilized, and the membrane is ensured to have good flow rate and filtering function while liquid stopping is ensured;
air in the drip cup 8 passes through the filter pad 602 through the exhaust needle 7, then passes through the exhaust plug 601, and is discharged from the exhaust port 6, so that the automatic discharge of gas in the drip cup 8 is realized, the liquid level of liquid medicine in the drip cup 8 continuously rises, the liquid level rises to the tail end of the exhaust needle 7, and the exhaust is avoided, the liquid medicine enters the second liquid conveying pipe 12 again, so that the gas in the drip cup 8 can be automatically discharged, bubbles can be prevented from being generated and entering the liquid conveying pipeline, the liquid level in the drip cup 8 can be automatically controlled at a certain fixed height, the liquid level in the drip cup 8 is prevented from being too high, the liquid medicine dripping speed is difficult to observe, the product is simple in structure, safety and reliability, the processing is easy, the operation steps are simplified, and the use habit of an operator is not changed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a from accurate transfusion system of stagnant liquid, includes bottle stopper puncture ware (1), its characterized in that: one end of the bottle stopper puncture outfit (1) is communicated with a first infusion tube (2), one end of the first infusion tube (2) far away from the bottle stopper puncture outfit (1) is communicated with a drip cup upper cover (3), a drip tube (4) is integrally formed in the middle of the drip cup upper cover (3), the drip tube (4) is communicated with the first infusion tube (2), one side of the drip cup upper cover (3) is integrally formed with a liquid medicine injection port (5), one end of the drip cup upper cover (3) far away from the liquid medicine injection port (5) is integrally formed with an exhaust port (6), the lower side of the exhaust port (6) is communicated with an exhaust needle (7), a drip cup (8) is clamped on the lower side of the drip cup upper cover (3), a drip cup lower cover (9) is clamped on one end of the drip cup (8) far away from the drip cup upper cover (3), and an anti-bubble net (10) is fixed at the bottom end of the interior of the drip cup lower cover (, prevent that the top of bubble net (10) is provided with end liquid microfiltration membrane (23), end liquid microfiltration membrane (23) and fix the inside upper end at drip kettle lower cover (9), integrated into one piece has drain passage (11) in the middle of the lower extreme of drip kettle lower cover (9), drain passage (11) intercommunication has second transfer line (12), flow regulator (13) have been cup jointed on second transfer line (12), second transfer line (12) opposite side intercommunication has liquid medicine injection piece (14), liquid medicine injection piece (14) opposite side intercommunication has third transfer line (16), third transfer line (16) opposite side intercommunication has luer connector (15), luer connector (15) opposite side intercommunication has venous transfusion needle (17).
2. The self-stopping precision infusion set according to claim 1, characterized in that: the outer side of the liquid medicine injection port (5) is sleeved with a rubber cap (501).
3. The self-stopping precision infusion set according to claim 1, characterized in that: the inside joint of gas vent (6) has core vent (601), be provided with between the inside bottom of core vent (601) and gas vent (6) filter pad (602).
4. The self-stopping precision infusion set according to claim 1, characterized in that: the flow regulator (13) is provided with a roller (1301), and anti-skid grains (1302) are uniformly arranged on the outer cylindrical surface of the roller (1301).
5. The self-stopping precision infusion set according to claim 1, characterized in that: the outside of bottle stopper puncture ware (1) has cup jointed first protective sheath (18), the outside of venous transfusion needle (17) has cup jointed second protective sheath (22).
6. The self-stopping precision infusion set according to claim 1, characterized in that: the middle of the bottle stopper puncture outfit (1) is integrally formed with an air inlet pipe (19), and an outlet joint of the air inlet pipe (19) is provided with a blocking cover (20).
7. The self-stopping precision infusion set according to claim 1, characterized in that: a clip (21) is sleeved in the middle of the first infusion tube (2).
8. The self-stopping precision infusion set according to claim 1, characterized in that: the liquid stopping precise filtering membrane (23) is a hydrophilic membrane made of polyether sulfone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190011.6A CN111388800A (en) | 2020-03-18 | 2020-03-18 | Self-stopping precise infusion apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190011.6A CN111388800A (en) | 2020-03-18 | 2020-03-18 | Self-stopping precise infusion apparatus |
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| CN111388800A true CN111388800A (en) | 2020-07-10 |
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| CN202010190011.6A Pending CN111388800A (en) | 2020-03-18 | 2020-03-18 | Self-stopping precise infusion apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041443A (en) * | 2021-02-02 | 2021-06-29 | 四川省肿瘤医院 | Transfusion device for transfusion bottle |
| CN114588376A (en) * | 2022-01-21 | 2022-06-07 | 无锡优尼生科技有限公司 | Durable anti-cracking silicone rubber infusion heat-insulating pipe |
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| US6673045B1 (en) * | 1997-04-17 | 2004-01-06 | Menachem A. Kraus | Flow indicators for ambulatory infusion |
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2020
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Patent Citations (6)
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| US6673045B1 (en) * | 1997-04-17 | 2004-01-06 | Menachem A. Kraus | Flow indicators for ambulatory infusion |
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| CN201880106U (en) * | 2010-12-15 | 2011-06-29 | 广东康尔美医疗器械有限公司 | Anti-blood back infusion set with precise filter |
| CN104274887A (en) * | 2013-07-09 | 2015-01-14 | 维尔福工业（马来西亚）私人有限公司 | Infusion set that prevents air entry into infusion tubing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041443A (en) * | 2021-02-02 | 2021-06-29 | 四川省肿瘤医院 | Transfusion device for transfusion bottle |
| CN114588376A (en) * | 2022-01-21 | 2022-06-07 | 无锡优尼生科技有限公司 | Durable anti-cracking silicone rubber infusion heat-insulating pipe |
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