CN110711284A - Infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing and bubble-preventing liquid level positioning functions - Google Patents
Infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing and bubble-preventing liquid level positioning functions Download PDFInfo
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- CN110711284A CN110711284A CN201911244441.5A CN201911244441A CN110711284A CN 110711284 A CN110711284 A CN 110711284A CN 201911244441 A CN201911244441 A CN 201911244441A CN 110711284 A CN110711284 A CN 110711284A
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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
- A61M5/1411—Drip chambers
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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
-
- 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
-
- 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
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
-
- 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
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
-
- 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
- A61M5/36—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
- A61M2005/1657—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)
- Emergency Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an infusion apparatus with an overflow-preventing color-changing filter element and a precise membrane liquid-stopping and bubble-preventing liquid level positioning device, which comprises an infusion pipeline, a puncture outfit, a double-exhaust dropping funnel, a dropping funnel liquid level positioning exhaust pipe, a flow rate regulator, a luer connector, an infusion needle with an overflow-preventing color-changing filter element and a double-exhaust liquid level positioning device, wherein the overflow-preventing color-changing filter element is arranged in the infusion needle, when medicine flows to the overflow-preventing color-changing filter element, the overflow-preventing filter element is water-free and air-permeable, and when the overflow-preventing color-changing filter element is pink and other colors when the medicine is closed when water exists, the automatic exhaust of the infusion apparatus is finished. The invention has the advantages of color change prevention by overflow, double exhaust and bubble prevention, reduction of the waste of liquid medicine, liquid level positioning function of the dropping funnel, effective filtration of insoluble particles such as Chinese patent medicine by the liquid-stopping precise filter membrane, automatic liquid stopping and blood return delay.
Description
Technical Field
The invention relates to an infusion apparatus, in particular to an infusion apparatus with an overflow-preventing color-changing filter element and a precise membrane for preventing liquid and preventing bubbles from being positioned on the liquid level.
Background
At present, infusion sets on the market are various, when people use infusion sets for infusion, firstly, medical personnel can exhaust for the infusion sets, the exhaust process needs to waste a part of liquid medicine, and because no obvious identification is provided for the medical personnel as the prompt of exhaust completion, the medical personnel often need to waste a large amount of liquid medicine and just can learn exhaust completion. According to the current clinical use specifications at home and abroad, the liquid level of the drip chamber is controlled to be about 2/3, the height of the liquid is controlled by people, the drip chamber is required to be inverted to squeeze the liquid level to the drip chamber 2/3, and then the intravenous drip can be carried out after the air exhaust operation, so that the operation speed is slow and complicated. The invention is provided with the liquid level positioning exhaust pipe, can automatically control the liquid level height at the position of the drip chamber 2/3, automatically exhausts, does not need complex operations such as manual drip chamber inversion, exhaust and the like, and is more standard and convenient for clinical use.
In addition, some traditional Chinese medicine injections, fat emulsion injections, biological agents and the like are easy to generate insoluble particles when being combined, more impurities are in the inner parts, the infusion apparatus on the market cannot filter the particle impurities, and once the particle impurities enter the blood of a human body, the health of the human body can be directly influenced. Moreover, insoluble particles of the traditional Chinese medicine injection and the liquid after compatibility can block a precise filtration type infusion apparatus, so that the liquid discharge is difficult.
In particular, before a medical worker infuses a patient, the medical worker must firstly perform liquid discharge operation on an infusion apparatus, and the traditional liquid discharge operation method is that liquid medicine of an infusion bottle directly flows through the whole infusion pipeline, so that the infusion pipeline is completely filled with the liquid medicine to further infuse the patient, and the operation has the defect that liquid medicine waste and environmental pollution are caused during liquid discharge.
Disclosure of Invention
The invention provides an infusion set with an overflow-preventing color-changing filter element and a precise membrane liquid-preventing and bubble-preventing liquid level positioning function, which aims to solve the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a prevent liquid bubble liquid level location transfusion system with overflow filter core that discolours and accurate membrane, includes infusion pipeline, puncture ware, two exhaust drip chambers, flow rate regulator, luer connects and has the transfusion needle of overflow filter core that discolours, two exhaust drip chambers are by last drip chamber, lower drip chamber and two exhaust liquid level positioner constitute, its characterized in that: the infusion needle comprises a needle seat, a needle tube arranged at the front end of the needle seat, a small hose arranged at the rear end of the needle seat, a needle handle arranged on one side of the needle seat, and a needle tube protective sleeve arranged at the front end of the needle seat and sleeved on the needle tube, wherein an overflow-preventing color-changing filter element is arranged at the top end of the needle tube protective sleeve, the overflow-preventing color-changing filter element which changes color when meeting water has a micropore which can be ventilated, and the overflow-preventing color-changing filter element is expanded to close the micropore after being soaked in water, so as to block.
Preferably, the inside of drip chamber is equipped with dripper liquid level location, double exhaust and ends the double gas-liquid face positioner of liquid anti-bubble, double gas-liquid face positioner is including setting up at the double exhaust joint seat of last drip chamber upper end and transfer line butt joint, vertical setting at the inside feed liquor drip chamber pipe of double exhaust joint seat and set up the drip chamber liquid level location blast pipe at the inside L type of double exhaust joint seat, drip chamber liquid level location blast pipe handstand installation and the lower part port of this drip chamber liquid level location blast pipe insert the two-thirds's of double exhaust drip chamber degree of depth, the upper portion port of drip chamber liquid level location blast pipe is equipped with an exhaust air inlet valve, the inside of exhaust air inlet valve is equipped with the ventilative water proof membrane of backstop in whole valve port, and the valve gap is installed in the port play of this exhaust air inlet valve.
Preferably, the middle of the bottom of the lower dripping bucket is provided with an upward convex anti-bubble convex pipe, the side surface of the anti-bubble convex pipe is provided with a plurality of vertically arranged liquid discharge holes, and the upper part of the anti-bubble convex pipe is provided with a layer of liquid stopping precise filtering membrane.
The design key points of the invention are five points:
firstly, the problem that the infusion cannot be normally performed due to blockage of insoluble particles of an injection when the injection is prepared by mixing a traditional Chinese medicine injection, a fat emulsion injection, a biological preparation and the like and easily generates the insoluble particles during infusion of a precise filtering infusion set and an infusion pipeline is effectively solved. The coarse filtering membrane arranged in the precise membrane liquid-stopping and air-bubble-preventing device can filter insoluble particles with larger particles in a liquid medicine, prevent the insoluble particles from entering the precise membrane liquid-stopping and air-bubble-preventing device and falling on the next liquid-stopping precise filtering membrane, and prevent the precise filtering membrane from being blocked by the insoluble particles.
Secondly, a membrane of the liquid stopping precise filtering membrane has hydrophilicity, a plurality of micropores are distributed on the surface of the membrane, the precise filtering membrane is in contact with dropping liquid, the micropores are opened, and the dropping liquid passes through the automatic liquid stopping layer to carry out infusion; the precise filtering membrane is separated from the dropping liquid, the micropores are closed, the air is isolated from passing through, and the cavity in the valve body forms negative pressure to stop transfusion. Therefore, the invention can automatically stop the liquid after the transfusion is finished, and prevent the blood return phenomenon of the transfusion.
Thirdly, the side surface of the bubble-proof convex tube is provided with a liquid discharge hole for discharging liquid, the side surface liquid discharging mode effectively prevents the generation of transfusion bubbles, prevents the bubbles from entering a transfusion tube, ensures the transfusion safety, reduces the workload of air discharge operation of medical staff during the transfusion, and can directly insert a bottle for transfusion without secondary air discharge operation particularly during the bottle continuation of the transfusion.
Fourthly, the drip chamber liquid level positioning exhaust pipe is adopted to have the function, when liquid is fed, the double exhaust device enables the drip chamber to exhaust without extruding and inverting the drip chamber, liquid is discharged directly and quickly, manual exhaust work is not needed, when the liquid level rises to the lower end of the liquid level positioning exhaust pipe, exhaust is automatically completed, the exhaust is automatically converted into normal drop number, after the overflow-preventing color-changing filter element changes color, the whole exhaust is completed, venous puncture transfusion can be carried out, and the drip chamber liquid level positioning automatic exhaust device is more convenient and simpler to operate.
Fifthly, the overflow-preventing color-changing filter element is fixed at the top end of the needle tube protective sleeve, the overflow-preventing color-changing filter element is characterized in that the filter element is the same as the liquid-preventing precise filter membrane, when the medicine liquid flows to the overflow-preventing color-changing filter element, the overflow-preventing filter element is water-free and breathable, and when the medicine liquid is sealed by water, the overflow-preventing color-changing filter element changes pink or color monitoring, which indicates that the automatic exhaust of the infusion apparatus is completed, and the veni. The overflow-preventing filter element can prevent bacteria and dust from entering the transfusion needle. The invention can more clearly know whether the whole infusion pipeline is exhausted, can prevent the liquid medicine from being wasted and polluting the environment because the liquid medicine is dropped on the ground after flowing out of the needle hole of the infusion needle, and can prevent external bacteria and dust from entering the infusion needle.
Compared with the prior art, the drip chamber liquid level positioning exhaust pipe provided by the invention can ensure that the liquid level of the drip chamber is within a control range, and prevent the problems of overhigh liquid level in the drip chamber and too fast transfusion; the overflow-preventing color-changing filter element can exhaust air and change color when meeting water, and gives enough prompt to medical personnel during air exhaust before transfusion, thereby greatly reducing the waste of liquid medicine.
The invention can also prevent the liquid medicine in the dropping funnel from directly entering the infusion tube, thereby preventing the generation of bubbles, and skillfully combining the function of closing the micropores of the liquid-stopping precise filtering membrane when the infusion is about to be finished, thereby automatically stopping the infusion and preventing the generation of the phenomenon of blood return.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the drip chamber of the present invention;
FIG. 3 is a schematic structural view of the infusion needle of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1, 2 and 3, the liquid level positioning infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing bubble-preventing liquid level provided by the invention comprises an infusion pipeline 1, a puncture outfit 2, a double exhaust dropping funnel 3, a flow rate regulator 4, a luer joint 5 and an infusion needle 6 with overflow-preventing color-changing filter element, wherein the double exhaust dropping funnel is composed of an upper dropping funnel 31, a lower dropping funnel 32 and a double exhaust liquid level positioning device, and is characterized in that: the transfusion needle 6 comprises a needle seat 8, a needle tube 81 arranged at the front end of the needle seat, a small hose 82 arranged at the rear end of the needle seat, a needle handle 83 arranged on one side of the needle seat, a needle tube protective sleeve 84 arranged at the front end of the needle seat and sleeved on the needle tube, an overflow-preventing color-changing filter element 85 is arranged at the top end of the needle tube protective sleeve 84, the overflow-preventing color-changing filter element 85 has a micropore which can be ventilated for the overflow-preventing color-changing filter element changing color when meeting water, and the overflow-preventing color-changing filter element is expanded to close the micropore after being.
The interior of the drip chamber 3 is provided with a double-exhaust liquid level positioning device which is used for dripper liquid level positioning, double exhaust and liquid stopping and bubble preventing, the double-exhaust liquid level positioning device comprises a double-exhaust joint seat 9 arranged at the upper end of an upper drip chamber 31 and butted with a transfusion pipe, a vertical liquid inlet drip chamber pipe 10 arranged inside the double-exhaust joint seat 9 and an L-shaped drip chamber liquid level positioning exhaust pipe 11 arranged inside the double-exhaust joint seat 9, the drip chamber liquid level positioning exhaust pipe 11 is installed in an inverted mode, the lower port of the drip chamber liquid level positioning exhaust pipe 11 is inserted into the depth of two thirds of the double-exhaust drip chamber, the upper port of the drip chamber liquid level positioning exhaust pipe 11 is provided with an exhaust and intake valve 12, the interior of the exhaust and intake valve 12 is provided with a breathable and waterproof membrane 13 stopping on the whole valve port, and the.
The middle of the bottom of the lower dropping funnel 32 is provided with an upward convex anti-bubble convex tube 33, the side surface of the anti-bubble convex tube is provided with a plurality of vertically arranged liquid discharge holes 34, and the upper part of the anti-bubble convex tube 33 is provided with a layer of liquid stopping precise filtering membrane 7.
The precise filtering membrane has hydrophilicity, a plurality of micropores are distributed on the surface of the membrane, the precise filtering membrane is in contact with dropping liquid, the micropores are opened, and the dropping liquid passes through the automatic liquid stopping layer to carry out transfusion; the precise filtering membrane is separated from the dropping liquid, the micropores are closed, the air is isolated from passing through, and the cavity in the valve body forms negative pressure to stop transfusion. Therefore, the invention can automatically stop the liquid after the transfusion is finished, and prevent the blood return phenomenon of the transfusion.
The side surface of the bubble-proof convex pipe is provided with the liquid discharge hole for discharging liquid, so that the side surface liquid discharging mode effectively prevents the generation of transfusion bubbles, prevents the bubbles from entering a transfusion pipe, ensures the transfusion safety, reduces the exhaust operation workload of medical staff during the transfusion, and can directly insert a bottle for transfusion without secondary exhaust operation particularly when the transfusion is continued.
The inside feed liquor drip chamber pipe of double exhaust joint seat that adopts is when the feed liquor, the inside liquid level of drip chamber rises, if the liquid level rises too fast, the liquid level just directly floods the inside L type of double exhaust joint seat drip chamber liquid level location blast pipe, the back is stopped up to drip chamber liquid level location blast pipe, just can't continue the exhaust, and then the liquid level in the drip chamber just can't continue to rise, and then accomplished the control to the drip chamber liquid level, after the drip chamber liquid level location blast pipe is submerged, can become the intake pipe in the twinkling of an eye, for the air transmission of drip chamber inner chamber, and then let the liquid medicine in the drip chamber continue to flow, accomplish the infusion.
The needle tube protective sleeve 84 of the needle tube is provided with an overflow-preventing color-changing filter element 85 which is provided with a micropore capable of ventilating and a through micropore, the silica gel expands after meeting water and further plugs the needle sleeve and the blocked pipe orifice, the overflow-preventing color-changing filter element has the characteristics of exhausting and changing color when meeting water, so that when liquid medicine is discharged from the position of the infusion needle by medical personnel in the exhaust operation of infusion for a patient, the overflow-preventing color-changing filter element is immediately contacted, the overflow-preventing color-changing filter element rapidly changes color to prompt the medical personnel to perform exhaust work, thereby greatly saving the problem that the medical personnel needs to waste a large amount of liquid medicine to know the end of exhaust when infusing and exhausting, particularly the waste of expensive liquid medicine to bring great economic loss to the patient, and many self-ventilating color-changing plug plugs are sold in the market at present, the application is very wide.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the patent and protection scope of the present invention should be subject to the appended claims.
Claims (3)
1. The utility model provides a prevent liquid bubble liquid level location transfusion system with overflow filter core and accurate membrane that discolours, includes infusion pipeline (1), puncture ware (2), two exhaust drip chambers (3), flow rate regulator (4), luer joint (5) and have transfusion needle (6) of the filter core that discolours of stopping overflowing, two exhaust drip chambers comprise last drip chamber (31), lower drip chamber (32) and two gas-liquid face positioner, its characterized in that: transfusion needle (6) include needle file (8), install needle tubing (81) at the front end on the needle file, locate little hose (82) of needle file rear end, locate needle file one side needle handle (83) and install needle tubing protective sheath (84) at the needle file front end and cover on the needle tubing, and the top of needle tubing protective sheath (84) is installed one and is only overflowed color-changing filter core (85), it has the micropore that can breathe freely to stop overflowed color-changing filter core (85) for meeting water discolour to stop, and stops that the micropore is closed in the inflation after the filter core that changes color soaks of overflowed, plugs up the mouth of pipe of needle tubing protective sheath (.
2. The liquid level positioning infusion apparatus with the overflow-preventing color-changing filter element and the precise membrane liquid-preventing and bubble-preventing functions as claimed in claim 1, is characterized in that: the interior of the drip chamber (3) is provided with a double-exhaust liquid level positioning device which is used for positioning the liquid level of the dripper, exhausting and preventing liquid and bubbles, the double-exhaust gas-liquid surface positioning device comprises a double-exhaust joint seat (9) which is arranged at the upper end of the upper dropping funnel (31) and is in butt joint with the infusion tube, a liquid inlet dropping funnel tube (10) which is vertically arranged inside the double-exhaust joint seat (9), and an L-shaped dropping funnel liquid surface positioning exhaust pipe (11) which is arranged inside the double-exhaust joint seat (9), the drip chamber liquid level positioning exhaust pipe (11) is arranged in an inverted manner, the lower port of the drip chamber liquid level positioning exhaust pipe (11) is inserted into the depth of two thirds of the double exhaust drip chambers, an exhaust and air intake valve (12) is arranged at the upper port of the drip chamber liquid level positioning exhaust pipe (11), the inside of the exhaust and air inlet valve (12) is provided with a breathable waterproof membrane (13) stopping on the whole valve port, and the port of the exhaust and air inlet valve is provided with a valve cover (14).
3. The liquid level positioning infusion apparatus with the overflow-preventing color-changing filter element and the precise membrane liquid-preventing and bubble-preventing functions as claimed in claim 1, is characterized in that: the improved anti-bubble drip chamber is characterized in that an anti-bubble convex pipe (33) which is convex upwards is arranged in the middle of the bottom of the lower drip chamber (32), a plurality of vertically arranged liquid discharge holes (34) are formed in the side surface of the anti-bubble convex pipe, and a liquid stopping precise filtering film (7) is arranged on the upper portion of the anti-bubble convex pipe (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244441.5A CN110711284A (en) | 2019-12-06 | 2019-12-06 | Infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing and bubble-preventing liquid level positioning functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244441.5A CN110711284A (en) | 2019-12-06 | 2019-12-06 | Infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing and bubble-preventing liquid level positioning functions |
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| CN110711284A true CN110711284A (en) | 2020-01-21 |
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| CN201911244441.5A Pending CN110711284A (en) | 2019-12-06 | 2019-12-06 | Infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing and bubble-preventing liquid level positioning functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359054A (en) * | 2020-03-18 | 2020-07-03 | 江西洪达医疗器械集团有限公司 | Self-exhausting liquid-stopping infusion needle |
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2019
- 2019-12-06 CN CN201911244441.5A patent/CN110711284A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359054A (en) * | 2020-03-18 | 2020-07-03 | 江西洪达医疗器械集团有限公司 | Self-exhausting liquid-stopping infusion needle |
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