CN104436360A - Automatic exhaust and automatic liquid stopping dropping bucket and automatic exhaust and automatic liquid stopping method thereof - Google Patents
Automatic exhaust and automatic liquid stopping dropping bucket and automatic exhaust and automatic liquid stopping method thereof Download PDFInfo
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- CN104436360A CN104436360A CN201410839296.6A CN201410839296A CN104436360A CN 104436360 A CN104436360 A CN 104436360A CN 201410839296 A CN201410839296 A CN 201410839296A CN 104436360 A CN104436360 A CN 104436360A
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- 239000012528 membrane Substances 0.000 claims abstract description 40
- 230000000694 effects Effects 0.000 claims abstract description 15
- 238000001802 infusion Methods 0.000 claims description 18
- 230000002209 hydrophobic effect Effects 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 239000003814 drug Substances 0.000 claims description 7
- 239000004816 latex Substances 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 27
- 238000010586 diagram Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
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- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003340 mental effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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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
-
- 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
- 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
- A61M5/36—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
- A61M5/385—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 using 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
-
- 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)
- External Artificial Organs (AREA)
Abstract
The invention discloses an automatic exhaust and automatic liquid stopping dropping bucket and an automatic exhaust and automatic liquid stopping method of the dropping bucket. The dropping bucket comprises an upper dropping bucket cover, an exhaust device, a dropping bucket body and a liquid stopping device. The exhaust device comprises an air plug, an air filtering membrane, a clamping groove and an air guide pipe. The air plug is arranged in the clamping groove. The clamping groove is formed in the left side of the upper dropping bucket cover. The air guide pipe and the upper dropping bucket cover are of an integrated injection molding piece. The air filtering membrane is assembled between the air plug and the bottom end of the clamping groove in an interference fit mode. The tail end of the air guide pipe is provided with a side hole. The dropping bucket body is of a conical structure. The liquid stopping device is clamped between an antiskid rib and the bottom end of the dropping bucket body. The liquid stopping device comprises an upper liquid stopping cover, a lower liquid stopping cover, a clamping base and a liquid stopping membrane. The liquid stopping membrane can be set to be a double-layer liquid stopping membrane and can also be set to be a cylindrical liquid stopping membrane. The upper liquid stopping cover, the lower liquid stopping cover and the clamping base are jointly assembled in an interference fit mode to form the cylindrical liquid stopping membrane. By means of the automatic exhaust and automatic liquid stopping dropping bucket and the automatic exhaust and automatic liquid stopping method of the dropping bucket, the effects of automatic exhaust, automatic liquid stopping, blocking resistance and the like can be achieved.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of automatic vent automatic liquid-stopping dropping funnel and automatic vent automatic liquid-stopping method thereof.
Background technology
At present, in medical field during clinical vein transfusion, generally adopt disposable transfusion device, in use there is following problem in such transfusion device: when using general infusion set transfusion, medicinal liquid is introduced dropping funnel by the effect of must manually squeezing, and the air scavenge in dropping funnel and transfusion catheter is difficult, loaded down with trivial details, time-consuming, if can not get rid of bubble very well, bubble enters in patient body with medicinal liquid, easily causes the danger such as aeroembolism.After transfusion completes; owing to there is no automatic liquid-stopping function; medical personnel are needed to change infusion bottle in time or pull out transfusion needle; otherwise air can enter in patient and cause aeroembolism; or other is as unsafe factors such as blood backs; these all can directly increase the working strength of medical personnel and heavy mental burden, simultaneously when being critically ill patient in the face of urgent transfusion and rescue, will cause serious consequence.
Therefore, for above-mentioned Problems existing, in clinical transfusion process, how to realize automatic vent, automatic liquid-stopping particularly important.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, adapt to reality need, disclose a kind of automatic vent automatic liquid-stopping dropping funnel.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of automatic vent automatic liquid-stopping dropping funnel, comprising: dropping funnel upper cover, exhaust apparatus, dropping funnel body and only liquid device;
Wherein, dropping funnel upper cover comprises the upper dropper be arranged in the middle part of dropping funnel upper cover and the liquid injection device be arranged on the right side of dropping funnel upper cover, liquid injection device is provided with dismountable latex cap;
Wherein, exhaust apparatus comprises the airway of vent plug, draw-in groove, air-filtering membrane and endcapped, draw-in groove is arranged on the left side of described dropping funnel upper cover, vent plug is arranged in draw-in groove, between vent plug and draw-in groove bottom, elastic conjunction has air-filtering membrane, airway and described dropping funnel upper cover are integrated moulding, and the center bottom of draw-in groove is communicated with airway, and airway end has side opening;
Wherein, dropping funnel body is pyramidal structure, and dropping funnel body is connected with dropping funnel upper cover, and airway inserts in dropping funnel body, and dropping funnel body center bottom is provided with lower dropper;
Wherein, only liquid device comprises only liquid upper cover, deck, upper only liquid film, only liquid film and only liquid lower cover down, stop liquid upper cover and stop liquid lower cover and be the hollow out pipe that edge is arranged at top, deck is the circular tube structure that inside is provided with bracing frame, upper only liquid film is that 8 micron pore size stop liquid film, only liquid film is 5 microns of only liquid films down, also be provided with anti-skidding stupefied in dropping funnel body, only the external diameter of liquid device is slightly larger than anti-skidding stupefied inner ring diameter, only liquid device is stuck between anti-skidding stupefied and described dropping funnel body bottom, only between liquid upper cover and deck, elastic conjunction stops liquid film, only stop liquid film under elastic conjunction between liquid lower cover and deck.
The invention also discloses another automatic vent automatic liquid-stopping dropping funnel, comprising: dropping funnel upper cover, exhaust apparatus, dropping funnel body and only liquid device;
Wherein, dropping funnel upper cover comprises the upper dropper be arranged in the middle part of dropping funnel upper cover and the liquid injection device be arranged on the right side of dropping funnel upper cover, liquid injection device is provided with dismountable latex cap;
Wherein, exhaust apparatus comprises the airway of vent plug, draw-in groove, air-filtering membrane and endcapped, draw-in groove is arranged on the left side of described dropping funnel upper cover, vent plug is arranged in draw-in groove, between vent plug and draw-in groove bottom, elastic conjunction has air-filtering membrane, airway and dropping funnel upper cover are integrated moulding, and the center bottom of draw-in groove is communicated with airway, and airway end has side opening;
Wherein, dropping funnel body is pyramidal structure, and dropping funnel body is connected with dropping funnel upper cover, and airway inserts in dropping funnel body, and dropping funnel body bottom is provided with step, and dropping funnel body center bottom is provided with lower dropper;
Wherein, only liquid device comprises only liquid upper cover, deck, only liquid film and only liquid lower cover, stop liquid upper cover and stop liquid lower cover and be the circular tube structure that perisporium arranges projection, deck is cross tube wall hollow out circular tube structure, only liquid film is that 5 microns of drum type brakes stop liquid film, also be provided with anti-skidding stupefied in dropping funnel body, only the external diameter of liquid device is slightly larger than anti-skidding stupefied inner ring diameter, only liquid device is stuck between anti-skidding stupefied and dropping funnel body bottom, only the vertical elastic conjunction of liquid film is on the inwall of deck, only liquid upper cover and deck elastic conjunction stop the upper end of liquid film, only liquid lower cover and deck elastic conjunction stop the lower end of liquid film.
In above-described embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention, vent plug bottom face is provided with circular arc projection, circular arc projection on the corresponding vent plug of draw-in groove bottom face is provided with groove, is cooperatively interacted by the circular arc projection on vent plug bottom face and draw-in groove bottom face upper groove.
In above-described embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention, only liquid upper cover and only liquid lower cover contact with deck respectively and fixes the bottom of stopping liquid film circular arc projection is set, on deck, correspondence is provided with arc groove, only liquid upper cover cooperatively interacts with the arc groove on deck respectively with the circular arc projection of stopping liquid lower cover, only liquid lower cover is soldered on deck, arranges projection at the edge that only liquid lower cover contacts with deck.
In above-described embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention, anti-skidding stupefied apart from 3-15mm place, dropping funnel body bottom.
In above-described embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention, side opening is arranged apart from airway end 0.5-3mm place.
In above-described embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention, side opening can be set to circular hole or the irregularly-shaped hole of one or more uniform 0.5-1.5mm diameters.
In above-described embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention, only liquid film is the hydrophilic filter film that diameter is identical with deck internal diameter, and air-filtering membrane is hydrophobic filter film.
The automatic vent that the present invention discloses a kind of automatic vent automatic liquid-stopping dropping funnel in addition on the one hand stops liquid method, comprises the following steps:
Step one: first open the vent plug in exhaust apparatus, medicinal liquid flows into dropping funnel body by the upper dropper of dropping funnel upper cover;
Step 2: because only liquid film only allows medicinal liquid to pass through, do not allow gas to pass through, along with the continuous inflow of medicinal liquid, the intrinsic gas of dropping funnel is forcibly pressed into airway at positive pressure and discharges dropping funnel body, reaches self-bleeding effect;
Step 3: when medicinal liquid arrives the side opening of airway, medicinal liquid flows into airway, in airway, liquid level constantly rises, when airway inner liquid medicine liquid level arrives air-filtering membrane, because air-filtering membrane is hydrophobic filter film, only allow gas by not allowing liquid to pass through, in dropping funnel body, liquid level stops rising, subsequently in dropping funnel body liquid level higher than on side opening along with upper part stop motion;
Step 4: medicinal liquid first carries out coarse filtration by upper only liquid film, then carrying out secondary filter by lower only liquid film, the medicinal liquid after filtration is flowed out by the lower dropper of dropping funnel body bottom;
Step 5: when the medicinal liquid in infusion bottle is totally lost, when medicinal liquid liquid level arrives below lower only liquid film, above only liquid film stops air to enter only below liquid device, the medicinal liquid stop motion under the effect of negative pressure only below liquid device.
The automatic vent that the invention also discloses another automatic vent automatic liquid-stopping dropping funnel stops liquid method, comprises the following steps:
Step one: first open the vent plug in exhaust apparatus, medicinal liquid flows into dropping funnel body by the upper dropper of dropping funnel upper cover;
Step 2: because only liquid film only allows medicinal liquid to pass through, do not allow gas to pass through, along with the continuous inflow of medicinal liquid, the intrinsic gas of dropping funnel is forcibly pressed into airway at positive pressure and discharges dropping funnel body, reaches self-bleeding effect;
Step 3: when medicinal liquid arrives the side opening of airway, medicinal liquid flows into airway, in airway, liquid level constantly rises, when airway inner liquid medicine liquid level arrives air-filtering membrane, because air-filtering membrane is hydrophobic filter film, only allow gas by not allowing liquid to pass through, in dropping funnel body, liquid level stops rising, subsequently in dropping funnel body liquid level higher than on side opening along with upper part stop motion;
Step 4: owing to stopping liquid upper cover by deck upper end closed, medicinal liquid is inner along the outer side inflow deck of deck, now drum type brake stops liquid film and filters, now the foreign body accumulated in infusion process can be guided is precipitated to bottom deck outer wall, and the medicinal liquid after filtration is flowed out by the lower dropper of dropping funnel body bottom;
Step 5: when the medicinal liquid in infusion bottle is totally lost, when medicinal liquid liquid level stops below liquid film bottom at drum type brake, only liquid film stops air to enter in deck, and medicinal liquid stops flowing under the effect of negative pressure.
beneficial effect
This utility model provides
-one stops liquid clean liquid infusion set from aerofluxus following beneficial effect:
(1) automatic vent, without the need to manual compression dropping funnel, reduces the loaded down with trivial details program of existing transfusion device, reduces medical personnel's labor intensity;
(2) automatic liquid-stopping, can realize automatic flow-stop effect, effectively prevent blood backflow or gas from entering in patient body to the medicinal liquid in infusion pipeline, alleviate the heavy mental burden of medical personnel, patient and family numbers of patients;
(3) film material is anti-blocking, extends the service time of dropping funnel in infusion process, duplicature material separation method, utilize different pore size film material, intercepted respectively by filtering foreign matter at two tunic material upper surfaces, bilayer shares foreign body accumulating amount effectively can prevent skim material blockage problem, avoids blocking; Cylindrical membrane material surface augmentativity, film material is kept flat and changes vertical placement into, increase contact area when film material and medical filtration, vertically place the foreign body accumulated in infusion process to be guided is precipitated to bottom deck outer wall simultaneously, indirectly slow down the reduction of medical filtration area, ensure medicinal liquid flow requirement further, avoid because of long-time transfusion, foreign body accumulation causes film material blockage problem, extends transfusion device service time.Two kinds of anti-blocking designs all effectively can reduce the workload of medical personnel, reduce the waste of transfusion device, avoid the doctor-patient dispute changing transfusion device initiation in long-time infusion process.
Accompanying drawing explanation
Fig. 1 is the population structure schematic diagram of a kind of embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention;
Fig. 2 is the population structure schematic diagram of another embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention;
The only liquid device integral installation distribution structure schematic diagram of Fig. 3 a kind of automatic vent automatic liquid-stopping dropping funnel disclosed in Fig. 1;
The only liquid device integral installation distribution structure schematic diagram of Fig. 4 a kind of automatic vent automatic liquid-stopping dropping funnel disclosed in Fig. 2.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Fig. 1 is the population structure schematic diagram of a kind of embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention, the only liquid device integral installation distribution structure schematic diagram of Fig. 3 a kind of automatic vent automatic liquid-stopping dropping funnel disclosed in Fig. 1, as shown in figures 1 and 3, a kind of automatic vent automatic liquid-stopping dropping funnel, comprising: dropping funnel upper cover 01, exhaust apparatus, dropping funnel body 09 and only liquid device, dropping funnel upper cover 01 comprises the upper dropper 03 be arranged in the middle part of dropping funnel upper cover and the liquid injection device 02 be arranged on the right side of dropping funnel upper cover, liquid injection device 02 is provided with dismountable latex cap, exhaust apparatus comprises vent plug 06, draw-in groove 04, the airway 07 of air-filtering membrane 05 and endcapped, draw-in groove 04 is arranged on the left side of described dropping funnel upper cover, vent plug 06 is arranged in draw-in groove 04, between vent plug 06 and draw-in groove 04 bottom, elastic conjunction has hydrophobic air filter membrane 05, vent plug 06 bottom face is provided with circular arc projection, circular arc projection on the corresponding vent plug 06 of draw-in groove 04 bottom face is provided with groove, cooperatively interacted by the circular arc projection on vent plug 06 bottom face and draw-in groove 04 bottom face upper groove, prevent the leakage of air-filtering membrane material.Vent plug 06 contacts the diameter dimension of perisporium slightly larger than draw-in groove 04 internal diameter size with corresponding draw-in groove 04, vent plug 06 is pressed into interference fit in draw-in groove 04, and closely cooperating of vent plug 06 cylindrical wall and draw-in groove 04 inner round wall, prevents vent plug 06 from coming off; When vent plug 06 is pressed into draw-in groove 04, hydrophobic air filter membrane material 05 is fixed in draw-in groove 04, and before transfusion device Kaifeng uses, vent plug 06 is closure state, and when preventing production and processing or transfusion preparation, extraneous foreign body enters, and causes aerofluxus airway blockage.
Airway 07 and dropping funnel upper cover 01 are integrated moulding, the center bottom of draw-in groove 04 and airway connect 07 and lead to, airway 07 end has side opening 08, and side opening is arranged apart from airway end 0.5-3mm place, and side opening can be set to circular hole or the irregularly-shaped hole of one or more uniform 0.5-1.5mm diameters.
Dropping funnel body 09 is pyramidal structure, and dropping funnel body 09 is connected with dropping funnel upper cover 01, and airway 07 inserts in dropping funnel body 09, and mainly realize air scavenge in dropping funnel inner liquid medicine Liquid level and bucket, dropping funnel body 09 center bottom is provided with lower dropper 14.
Only liquid device comprises only liquid upper cover 11, deck 12, upper only liquid film 16, only liquid film 15 and only liquid lower cover 13 down, stop liquid upper cover 11 and stop liquid lower cover 13 and be the hollow out pipe that edge is arranged at top, deck 12 is the inner circular tube structure being provided with bracing frame, deck 12 is arranged on apart from 3-5mm place, dropping funnel body 09 bottom, upper only liquid film 16 is that 8 micron pore size stop liquid film, only liquid film 15 is 5 microns of only liquid films down, dropping funnel body 09 is the cavity of carrying medicinal liquid, anti-skidding stupefied 10 are also provided with apart from 3-15mm place, dropping funnel body 09 bottom in dropping funnel body 09, anti-skidding stupefied 10 are mainly fixed stopping liquid device, only the external diameter of liquid device is slightly larger than anti-skidding stupefied inner ring diameter, only liquid device is stuck between anti-skidding stupefied 10 and dropping funnel body 09 bottom, only between liquid upper cover 11 and deck 12, elastic conjunction stops liquid film 16, only liquid upper cover 11 arranges circular arc projection with upper only liquid film 16 contact portion, on deck 12, correspondence arranges arc groove, by protruding coordinating with groove, prevent only liquid film material gas leakage.Arrange arc groove at deck 12 perisporium one circle, it is protruding that only liquid upper cover 11 perisporium one contacted with deck 12 encloses the circular arc arranged slightly larger than deck 12 perisporium arc groove, and the physical depression realizing only liquid upper cover 11 and deck 12 coordinates.At only only liquid film 15 under elastic conjunction between liquid lower cover 13 and deck 12, only liquid lower cover 13 arranges circular arc projection with lower only liquid film 15 contact portion, and on deck 12, correspondence arranges arc groove, by protruding coordinating with groove, prevents only liquid film material from leaking gas; In only liquid lower cover 13 and deck 12 bottom side edge along arranging projection, for the welding of only liquid lower cover 13 and deck 12, because dropping funnel is conical design, only liquid device is gone everywhere without any hindrance here in anti-skidding stupefied more than 10 buckets, can be stuck downwards, as shown in fig. 1.Only liquid upper cover 11, only liquid lower cover 13 coordinate with deck 12 respectively to compress and descend to stop liquid film 15, upper only liquid film 16 and lower only liquid film 15 adopt hydrophilic filter film and upper only liquid film 16 and lower only liquid film 15 diameter is equal with deck 12 internal diameter, object is to ensure upper only liquid film 16 and lower only liquid film 15 and deck 12, stop liquid upper cover 11 and stop liquid under 13 cover coordinate compact.
In which, two film material arranges and can effectively prevent in long-time infusion process because much filtrate accumulates the problem causing flow to reduce.First stop liquid film material with 8 μm of apertures and carry out coarse filtration, the larger foreign body of filtering, then stops liquid film material by 5 μm of apertures and carries out secondary filter, maximumly knows foreign body in medicinal liquid, bilayer shares foreign body accumulating amount effectively can prevent skim material blockage problem, avoids blocking, extends transfusion device service time.
Fig. 2 is the population structure schematic diagram of another embodiment of a kind of automatic vent automatic liquid-stopping dropping funnel disclosed by the invention; The only liquid device integral installation distribution structure schematic diagram of Fig. 4 a kind of automatic vent automatic liquid-stopping dropping funnel disclosed in Fig. 2; The difference of Fig. 2 and Fig. 1 is the design form of only liquid device, and as shown in Figure 2 and Figure 4, automatic vent automatic liquid-stopping dropping funnel, comprising: dropping funnel upper cover 01, exhaust apparatus, dropping funnel body 09 and only liquid device; Dropping funnel upper cover 01 comprises the upper dropper 03 be arranged in the middle part of dropping funnel upper cover and the liquid injection device 02 be arranged on the right side of dropping funnel upper cover, liquid injection device 02 is provided with dismountable latex cap, exhaust apparatus comprises the airway 07 of vent plug 06, draw-in groove 04, air-filtering membrane 05 and endcapped, draw-in groove 04 is arranged on the left side of described dropping funnel upper cover, vent plug 06 is arranged in draw-in groove 04, and between vent plug 06 and draw-in groove 04 bottom, elastic conjunction has hydrophobic air filter membrane 05.Between vent plug 06 and draw-in groove 04 bottom, elastic conjunction has hydrophobic air filter membrane 05, vent plug 06 bottom face is provided with circular arc projection, circular arc projection on the corresponding vent plug 06 of draw-in groove 04 bottom face is provided with groove, cooperatively interacted by the circular arc projection on vent plug 06 bottom face and draw-in groove 04 bottom face upper groove, prevent the leakage of air-filtering membrane material.Vent plug 06 contacts the diameter dimension of perisporium slightly larger than draw-in groove 04 internal diameter size with corresponding draw-in groove 04, vent plug 06 is pressed into interference fit in draw-in groove 04, and closely cooperating of vent plug 06 cylindrical wall and draw-in groove 04 inner round wall, prevents vent plug 06 from coming off; When vent plug 06 is pressed into draw-in groove 04, hydrophobic air filter membrane material 05 is fixed in draw-in groove 04, and before transfusion device Kaifeng uses, vent plug 06 is closure state, and when preventing production and processing or transfusion preparation, extraneous foreign body enters, and causes aerofluxus airway blockage.
Airway 07 and dropping funnel upper cover 01 are integrated moulding, the center bottom of draw-in groove 04 and airway connect 07 and lead to, airway 07 end has side opening 08, and side opening 08 is arranged apart from airway 07 end 0.5-3mm place, and side opening can be set to circular hole or the irregularly-shaped hole of one or more uniform 0.5-1.5mm diameters.
Dropping funnel body 09 is pyramidal structure, dropping funnel body 09 is connected with dropping funnel upper cover 01, airway 07 inserts in dropping funnel body 09, dropping funnel body 09 center bottom is provided with lower dropper 14, only liquid device comprises only liquid upper cover 17, deck 19, only liquid film 18 and only liquid lower cover 20, stop liquid upper cover 17 and stop liquid lower cover 20 and be the circular tube structure that perisporium arranges projection, deck 19 is cross tube wall hollow out circular tube structure, only liquid film 18 is that 5 microns of drum type brakes stop liquid film, dropping funnel body 09 is the cavity of carrying medicinal liquid, anti-skidding stupefied 10 are also provided with in dropping funnel body 09, anti-skidding stupefied 10 are arranged on apart from 3-15mm place, dropping funnel body 09 bottom, anti-skidding stupefied 10 are mainly fixed stopping liquid device, only the external diameter of liquid device is slightly larger than anti-skidding stupefied inner ring diameter, only liquid device is stuck between anti-skidding stupefied 10 and dropping funnel body 09 bottom, only the vertical elastic conjunction of liquid film 18 is on the inwall of deck 19, only liquid upper cover 17 and deck 19 elastic conjunction stop the upper end of liquid film 18, only liquid lower cover 20 and deck 19 elastic conjunction stop the lower end of liquid film 18.
Only liquid upper cover 17 and drum type brake stop liquid film 18 contact portion and arrange circular arc projection, and on deck 19 inwall, correspondence arranges arc groove, by protruding coordinating with groove, prevent stopping liquid film 18 and leak gas.Only liquid lower cover 20 and only liquid film 18 contact portion arrange circular arc projection, and on deck 19 inwall, correspondence arranges arc groove, by protruding coordinating with groove, prevent stopping liquid film 18 and leak gas; Only liquid lower cover 20 and deck 19 bottom face contact position arrange projection, for stopping the welding of liquid lower cover 20 and deck 19, because dropping funnel is conical design, only liquid device is gone everywhere without any hindrance here in anti-skidding stupefied more than 10 buckets, can be stuck downwards, only liquid upper cover 17, only liquid lower cover 20 coordinate with deck 19 respectively and compress only liquid film 18, and only liquid film employing hydrophilic filter film, stops liquid film material diameter equal with deck internal diameter.
Which adopts cylindrical membrane material surface augmentativity, should for vertically placing by film material square, change and originally cannot increase the drawback of the effective area of a circle of film material because of the restriction of dropping funnel size, drum type brake film material effectively can increase contact area when film material and medical filtration, ensure medicinal liquid flow requirement, in addition vertically placing the foreign body accumulated in infusion process to be guided is precipitated to bottom deck outer wall, indirectly slow down the reduction of medical filtration area, the requirement of further guarantee medicinal liquid flow, avoid because of long-time transfusion, foreign body accumulation causes film material blockage problem, extend transfusion device service time.
Only liquid device is as depicted in figs. 1 and 2 assembling separately, only liquid upper cover 11 and only liquid upper cover 17, only liquid lower cover 13 and only on liquid lower cover 20, deck 12 and deck 19 and 8 μm of apertures only under liquid film 16 and 5 μm of apertures only liquid film 15 be easy to coordinate, work good, be convenient to detect, in only liquid device press-in dropping funnel body 09 after detection, to dropping funnel body 09 not damage itself.Only liquid film is directly welded in dropping funnel body 09 at present, to the head requirement for horizontality of welding is quite high and need are stable, prevent the levelness of the pallet of dropping funnel body 09 from also requiring quite high and need stablize, simultaneously only liquid film and dropping funnel body will just to and good contact, only have and meet above condition, just can complete effective production of only drop bucket, in addition, such production method not easily detects the firmness of welding, and then not easily judge only fluidity energy, once detect defective, discarded will be a dropping funnel, and waste is large.And the only liquid device of the design, only require that injection mold is stable, can ensure the only fluidity energy of only liquid device, interference factor, much smaller than the dropping funnel directly welding only liquid film material, realizes automatic liquid-stopping function and has higher success rate.
The automatic vent that the invention also discloses utilization a kind of automatic vent automatic liquid-stopping dropping funnel as shown in Figure 1 stops liquid method, comprises the following steps:
Step one: first open the vent plug 06 in exhaust apparatus, medicinal liquid flows into dropping funnel body 09 by the upper dropper 03 of dropping funnel upper cover 01;
Step 2: because only liquid film only allows medicinal liquid to pass through, do not allow gas to pass through, along with the continuous inflow of medicinal liquid, the gas in dropping funnel body 09 is forcibly pressed into inducing QI 07 bank of tubes at positive pressure and goes out dropping funnel body 09, reaches self-bleeding effect;
Step 3: when medicinal liquid arrives the side opening 08 of airway 07, medicinal liquid flows into airway 07, in airway 07, liquid level constantly rises, when airway 07 inner liquid medicine liquid level arrives air-filtering membrane 05, because air-filtering membrane 05 is hydrophobic filter film, only allow gas by not allowing liquid to pass through, in dropping funnel body 09, liquid level stops rising, subsequently in dropping funnel body 09 liquid level higher than on side opening 08 along with upper part stop motion;
Step 4: medicinal liquid first carries out coarse filtration by upper only liquid film 16, then carrying out secondary filter by lower only liquid film 15, the medicinal liquid after filtration is flowed out by the lower dropper 14 of dropping funnel body 09 bottom;
Step 5: when the medicinal liquid in infusion bottle is totally lost, when medicinal liquid liquid level arrive lower only liquid film less than 15 time, above only liquid film 16 stops air to enter only below liquid device, the medicinal liquid stop motion under the effect of negative pressure only below liquid device.
The automatic vent that the invention also discloses utilization a kind of automatic vent automatic liquid-stopping dropping funnel as shown in Figure 2 stops liquid method, comprises the following steps:
Step one: first open the vent plug 06 in exhaust apparatus, medicinal liquid flows into dropping funnel body 09 by the upper dropper 03 of dropping funnel upper cover 01;
Step 2: because only liquid film only allows medicinal liquid to pass through, do not allow gas to pass through, along with the continuous inflow of medicinal liquid, the gas in dropping funnel body 09 is forcibly pressed into inducing QI 07 bank of tubes at positive pressure and goes out dropping funnel body 09, reaches self-bleeding effect;
Step 3: when medicinal liquid arrives the side opening 08 of airway 07, medicinal liquid flows into airway 07, in airway 07, liquid level constantly rises, when airway 07 inner liquid medicine liquid level arrives air-filtering membrane 05, because air-filtering membrane 05 is hydrophobic filter film, only allow gas by not allowing liquid to pass through, in dropping funnel body 09, liquid level stops rising, subsequently in dropping funnel body 09 liquid level higher than on side opening 08 along with upper part stop motion;
Step 4: owing to stopping liquid upper cover 17 by deck 19 upper end closed, medicinal liquid is inner along the outer side inflow deck 19 of deck 19, now drum type brake stops liquid film 18 and filters, now the foreign body accumulated in infusion process can be guided is precipitated to bottom deck outer wall, and the medicinal liquid after filtration is flowed out by the lower dropper 14 of dropping funnel body 09 bottom;
Step 5: when the medicinal liquid in infusion bottle is totally lost, when medicinal liquid liquid level stops below liquid film 18 bottom at drum type brake, only liquid film 18 stops air to enter in deck, and medicinal liquid stops flowing under the effect of negative pressure.
Last it is noted that obviously, above-described embodiment is only for this utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among the protection domain of this explanation.
Claims (10)
1. an automatic vent automatic liquid-stopping dropping funnel, comprising: dropping funnel upper cover, exhaust apparatus, dropping funnel body and only liquid device;
Wherein, described dropping funnel upper cover comprises the upper dropper be arranged in the middle part of dropping funnel upper cover and the liquid injection device be arranged on the right side of described dropping funnel upper cover, described liquid injection device is provided with dismountable latex cap;
Wherein, described exhaust apparatus comprises the airway of vent plug, draw-in groove, air-filtering membrane and endcapped, described draw-in groove is arranged on the left side of described dropping funnel upper cover, described vent plug is arranged in draw-in groove, between described vent plug and described draw-in groove bottom, elastic conjunction has air-filtering membrane, described airway and described dropping funnel upper cover are integrated moulding, and the center bottom of described draw-in groove is communicated with described airway, and described airway end has side opening;
Wherein, described dropping funnel body is pyramidal structure, and described dropping funnel body is connected with described dropping funnel upper cover, and described airway inserts in described dropping funnel body, and described dropping funnel body center bottom is provided with lower dropper;
Wherein, described only liquid device comprises only liquid upper cover, deck, upper only liquid film, only liquid film and only liquid lower cover down, described only liquid upper cover and described only liquid lower cover are the hollow out pipe that edge is arranged at top, described deck is the circular tube structure that inside is provided with bracing frame, described upper only liquid film is that 8 micron pore size stop liquid film, described lower only liquid film is 5 microns of only liquid films, also be provided with anti-skidding stupefied in dropping funnel body, the external diameter of described only liquid device is slightly larger than anti-skidding stupefied inner ring diameter, described only liquid device is stuck between described anti-skidding stupefied and described dropping funnel body bottom, only between liquid upper cover and described deck described in elastic conjunction on only liquid film, at described only lower only liquid film described in elastic conjunction between liquid lower cover and described deck.
2. an automatic vent automatic liquid-stopping dropping funnel, comprising: dropping funnel upper cover, exhaust apparatus, dropping funnel body and only liquid device;
Wherein, described dropping funnel upper cover comprises the upper dropper be arranged in the middle part of dropping funnel upper cover and the liquid injection device be arranged on the right side of described dropping funnel upper cover, described liquid injection device is provided with dismountable latex cap;
Wherein, described exhaust apparatus comprises the airway of vent plug, draw-in groove, air-filtering membrane and endcapped, described draw-in groove is arranged on the left side of described dropping funnel upper cover, described vent plug is arranged in draw-in groove, between described vent plug and described draw-in groove bottom, elastic conjunction has air-filtering membrane, described airway and described dropping funnel upper cover are integrated moulding, and the center bottom of described draw-in groove is communicated with described airway, and described airway end has side opening;
Wherein, described dropping funnel body is pyramidal structure, and described dropping funnel body is connected with described dropping funnel upper cover, and described airway inserts in described dropping funnel body, and described dropping funnel body bottom is provided with step, and described dropping funnel body center bottom is provided with lower dropper;
Wherein, described only liquid device comprises only liquid upper cover, deck, only liquid film and only liquid lower cover, described only liquid upper cover and described only liquid lower cover are perisporium and arrange protruding circular tube structure, described deck is cross tube wall hollow out circular tube structure, described only liquid film is that 5 microns of drum type brakes stop liquid film, also be provided with anti-skidding stupefied in described dropping funnel body, the external diameter of described only liquid device is slightly larger than anti-skidding stupefied inner ring diameter, described only liquid device is stuck between described anti-skidding stupefied and described dropping funnel body bottom, the described only vertical elastic conjunction of liquid film is on the inwall of deck, described only liquid upper cover and deck elastic conjunction stop the upper end of liquid film, described only liquid lower cover and deck elastic conjunction stop the lower end of liquid film.
3. a kind of automatic vent automatic liquid-stopping dropping funnel as described in as arbitrary in claim 1 or 2, it is characterized in that: described vent plug bottom face is provided with circular arc projection, circular arc projection on the corresponding vent plug of described draw-in groove bottom face is provided with groove, is cooperatively interacted by the circular arc projection on vent plug bottom face and draw-in groove bottom face upper groove.
4. a kind of automatic vent automatic liquid-stopping dropping funnel as described in as arbitrary in claim 1 or 2, it is characterized in that: described only liquid upper cover and only liquid lower cover contacts with deck respectively to be fixed the bottom of stopping liquid film and arrange circular arc projection, on described deck, correspondence is provided with arc groove, the circular arc projection of described only liquid upper cover and only liquid lower cover cooperatively interacts with the arc groove on described deck respectively, described only liquid lower cover is soldered on deck, arranges projection at the described only edge that liquid lower cover contacts with described deck.
5. a kind of automatic vent automatic liquid-stopping dropping funnel as described in as arbitrary in claim 1 or 2, is characterized in that: described anti-skidding stupefied apart from 3-15mm place, dropping funnel body bottom.
6. a kind of automatic vent automatic liquid-stopping dropping funnel as claimed in claim 1 or 2, is characterized in that: described side opening is arranged apart from described airway end 0.5-3mm place.
7. a kind of automatic vent automatic liquid-stopping dropping funnel as claimed in claim 6, is characterized in that: described side opening can be set to circular hole or the irregularly-shaped hole of one or more uniform 0.5-1.5mm diameters.
8. a kind of automatic vent automatic liquid-stopping dropping funnel as described in as arbitrary in claim 1 or 2, is characterized in that: described only liquid film is the hydrophilic filter film that diameter is identical with described deck internal diameter, and described air-filtering membrane is hydrophobic filter film.
9. utilize the automatic vent of automatic vent automatic liquid-stopping dropping funnel described in claim 1 to stop a liquid method, comprise the following steps:
Step one: first open the vent plug in exhaust apparatus, medicinal liquid flows into dropping funnel body by the upper dropper of dropping funnel upper cover;
Step 2: because only liquid film only allows medicinal liquid to pass through, do not allow gas to pass through, along with the continuous inflow of medicinal liquid, the intrinsic gas of dropping funnel is forcibly pressed into airway at positive pressure and discharges dropping funnel body, reaches self-bleeding effect;
Step 3: when medicinal liquid arrives the side opening of airway, medicinal liquid flows into airway, in airway, liquid level constantly rises, when airway inner liquid medicine liquid level arrives air-filtering membrane, because air-filtering membrane is hydrophobic filter film, only allow gas by not allowing liquid to pass through, in dropping funnel body, liquid level stops rising, subsequently in dropping funnel body liquid level higher than on side opening along with upper part stop motion;
Step 4: medicinal liquid first carries out coarse filtration by upper only liquid film, then carrying out secondary filter by lower only liquid film, the medicinal liquid after filtration is flowed out by the lower dropper of dropping funnel body bottom;
Step 5: when the medicinal liquid in infusion bottle is totally lost, when medicinal liquid liquid level arrives below lower only liquid film, above only liquid film stops air to enter only below liquid device, the medicinal liquid stop motion under the effect of negative pressure only below liquid device.
10. utilize the automatic vent of automatic vent automatic liquid-stopping dropping funnel described in claim 2 to stop a liquid method, comprise the following steps:
Step one: first open the vent plug in exhaust apparatus, medicinal liquid flows into dropping funnel body by the upper dropper of dropping funnel upper cover;
Step 2: because only liquid film only allows medicinal liquid to pass through, do not allow gas to pass through, along with the continuous inflow of medicinal liquid, the intrinsic gas of dropping funnel is forcibly pressed into airway at positive pressure and discharges dropping funnel body, reaches self-bleeding effect;
Step 3: when medicinal liquid arrives the side opening of airway, medicinal liquid flows into airway, in airway, liquid level constantly rises, when airway inner liquid medicine liquid level arrives air-filtering membrane, because air-filtering membrane is hydrophobic filter film, only allow gas by not allowing liquid to pass through, in dropping funnel body, liquid level stops rising, subsequently in dropping funnel body liquid level higher than on side opening along with upper part stop motion;
Step 4: owing to stopping liquid upper cover by deck upper end closed, medicinal liquid is inner along the outer side inflow deck of deck, now drum type brake stops liquid film and filters, now the foreign body accumulated in infusion process can be guided is precipitated to bottom deck outer wall, and the medicinal liquid after filtration is flowed out by the lower dropper of dropping funnel body bottom;
Step 5: when the medicinal liquid in infusion bottle is totally lost, when medicinal liquid liquid level stops below liquid film bottom at drum type brake, only liquid film stops air to enter in deck, and medicinal liquid stops flowing under the effect of negative pressure.
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| CN201410839296.6A CN104436360A (en) | 2014-12-30 | 2014-12-30 | Automatic exhaust and automatic liquid stopping dropping bucket and automatic exhaust and automatic liquid stopping method thereof |
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Cited By (6)
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| CN104758998A (en) * | 2015-04-21 | 2015-07-08 | 山东新华安得医疗用品有限公司 | Exhaust and liquid stopping infusion apparatus |
| CN105288773A (en) * | 2015-10-30 | 2016-02-03 | 刘青山 | Infusion apparatus low in contamination and easy to operate |
| CN105498033A (en) * | 2015-07-25 | 2016-04-20 | 胡绍勤 | Infusion container capable of realizing precision filtration |
| CN108785794A (en) * | 2018-08-06 | 2018-11-13 | 江西丽华鑫朗药业科技有限公司 | A kind of double medium filtration stops liquid Anti-bubble multifunctional transfusion system |
| CN109010999A (en) * | 2018-09-30 | 2018-12-18 | 北京伏尔特技术有限公司 | A kind of automatic liquid-stopping is vented dropping funnel and its application method automatically |
| CN110812230A (en) * | 2019-12-08 | 2020-02-21 | 湖南平安医械科技有限公司 | Disposable automatic exhaust syringe for dispensing |
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