CN102319462B - Bubble-prevention fast exhaust transfusion device with improved structure - Google Patents
Bubble-prevention fast exhaust transfusion device with improved structure Download PDFInfo
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- CN102319462B CN102319462B CN 201110255128 CN201110255128A CN102319462B CN 102319462 B CN102319462 B CN 102319462B CN 201110255128 CN201110255128 CN 201110255128 CN 201110255128 A CN201110255128 A CN 201110255128A CN 102319462 B CN102319462 B CN 102319462B
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- minim pipette
- cover body
- dropping funnel
- air
- bubble
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Abstract
The invention belongs to the technical field of medical transfusion devices and particularly relates to a bubble-prevention fast exhaust transfusion device with an improved structure, which comprises a dripping chamber, wherein the upper end part of the dripping chamber is connected with an upper liquid dripping pipe, the lower end part of the dripping chamber is connected with the lower liquid dripping pipe, the bubble-prevention fast exhaust transfusion device also comprises an air isolation cover body, the air isolation cover body is matched with the lower liquid dripping pipe, and the air isolation cover body or the lower liquid dripping pipe is provided with a bubble-prevention liquid outlet groove for making liquid flow into the lower liquid dripping pipe from bottom to top. The bubble-prevention fast exhaust transfusion device has the advantages that the structure is simple, the production cost is low, the goal of automatically, fast and thoroughly exhausting the air in the transfusion device can be realized, the exhaust operation by medical personnel is not needed, the exhaust speed is high, and safety and reliability are realized.
Description
Technical field
The invention belongs to the medical infusing device technical field, relate in particular to the quick exhaust transfusion device of a kind of structure improved anti-bubble.
Background technology
A kind of medical apparatus and instruments of often using when transfusion device is the treatment disease all needs to use transfusion device when patient is infused.At present, the general infusion set that medical field is commonly used is made up of contact pin, air inlet pipe, upper tubing, dropping funnel, following tube for transfusion, by-pass cock, filter and intravenous needle.General infusion set the transfusion just begin, when medicinal liquid enters dropping funnel, because medicinal liquid is subjected to the double influence of gravity and pressure, very easily form the gas-liquid mixture of gas and medicinal liquid, this gas-liquid mixture can enter in the transfusion catheter of dropping funnel below bubble phenomenon when forming transfusion rapidly simultaneously.Meanwhile, because the interior micro-bubble of tube for transfusion has surface tension down, these micro-bubbles can be adsorbed in down on the inwall of tube for transfusion in the infusion process, and the bubble ratio that therefore eliminating produces is difficulty.These bubbles have the danger that enters in patient's body in infusion process, cause the harm that causes patient's aeroembolism because of bubble.
Therefore, medical personnel before infusing, must will descend bubble in the tube for transfusion to discharge fully after transfusion again.Usually the manual method of getting rid of gas is: after bottle plug puncture unit is inserted transfusion bottle stopper, squeeze dropping funnel with hands earlier, medicinal liquid is entered in the dropping funnel, simultaneously dropping funnel is hung upside down, after charging into a certain amount of medicinal liquid in the dropping funnel, rapidly dropping funnel is vertically placed, can prevent the generation of a large amount of bubbles; Another kind method is earlier actuator to cut out, and after charging into a certain amount of medicinal liquid in the dropping funnel, slowly opens actuator again, thereby reduces the generation of bubble.These manual methods are all more loaded down with trivial details, time-consuming, are difficult for the air in the transfusion device is discharged; And after medical personnel finish the operation of getting rid of the air in the transfusion device; frequent also residual a spot of air is in transfusion device; because this moment; the air that needs medical personnel will remain in again in the transfusion device excludes bit by bit; the stability of its aerofluxus is not high yet, is unfavorable for urgent transfusion and rescues critically ill patient.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, and provide a kind of structure improved anti-bubble quick exhaust transfusion device, it can prevent the generation of bubble, realizes getting rid of automatically and quickly the purpose of the air in the transfusion device.
The present invention is achieved through technology.
The quick exhaust transfusion device of a kind of structure improved anti-bubble, it comprises dropping funnel, the upper end of described dropping funnel is connected with last minim pipette, the bottom of described dropping funnel is connected with following minim pipette, comprise that also air completely cuts off cover body, the isolated cover body of described air cooperates with described minim pipette down, and the isolated cover body of described air or described minim pipette down are provided with the gas-tight that makes liquid from bottom to top flow into down minim pipette and bubble out liquid bath.
Wherein, the isolated cover body of described air is provided with the gas-tight that liquid is from bottom to top flowed in the described minim pipette down and bubbles out liquid bath, the isolated cover body of described air is provided with projective structure, and described minim pipette down is provided with position limiting structure, and described projective structure cooperates with described position limiting structure.
Wherein, the isolated cover body of described air is provided with the gas-tight that liquid is from bottom to top flowed in the described minim pipette down and bubbles out liquid bath, and the inboard of the isolated cover body of described air is provided with groove, and described minim pipette down is provided with step, and described groove cooperates with described step.
Wherein, described minim pipette down is provided with the gas-tight that makes liquid from bottom to top flow into down minim pipette and bubbles out liquid bath, and the inboard of the isolated cover body of described air is provided with groove, and described minim pipette down is provided with step, and described groove cooperates with described step; Described step is provided with the gas-tight that makes liquid from bottom to top flow into described following minim pipette and bubbles out liquid bath, and the lower edge of the isolated cover body of described air is higher than the lower edge that described gas-tight bubbles out liquid bath.
Wherein, the bottom of described dropping funnel is provided with kelly, and the bottom of the isolated cover body of described air has extended round platform, and described round platform is provided with draw-in groove, and described kelly and described draw-in groove closely cooperate.
Wherein, described minim pipette down comprises first time minim pipette and second time minim pipette, and first time minim pipette removably is connected with second time minim pipette; The junction of first time minim pipette and second time minim pipette is provided with filtration.
Wherein, first time minim pipette and second time minim pipette are threaded.
Wherein, described filtration is drainage screen.
Wherein, described filtration is filter membrane.
Wherein, described gas-tight bubble out liquid bath for two or more.
Beneficial effect of the present invention is: the quick exhaust transfusion device of a kind of structure improved anti-bubble of the present invention, it comprises dropping funnel, the upper end of described dropping funnel is connected with last minim pipette, the bottom of described dropping funnel is connected with following minim pipette, comprise that also air completely cuts off cover body, the isolated cover body of described air cooperates with described minim pipette down, and the isolated cover body of described air or described minim pipette down are provided with the gas-tight that makes liquid from bottom to top flow into down minim pipette and bubble out liquid bath.
When the present invention is in running order, liquid drips by last minim pipette, in the dropping funnel inner accumulated, after the liquid level of liquid in the dropping funnel surpasses the height of lower edge that gas-tight bubbles out liquid bath, because liquid is subjected to the double influence of gravity and pressure, promptly enters gas-tight and bubbles out liquid bath; By the gap of the isolated cover body of air with following minim pipette, the liquid in the gap rises gradually then, and liquid from bottom to top flows into down minim pipette, and in this process, liquid that can not produces bubble; The isolated cover body of air can prevent that air from entering down minim pipette, prevents that effectively bubble from producing.In addition, when the liquid in the dropping funnel produced bubble, when liquid entered gas-tight and bubbles out liquid bath, as long as bubble one contact gas-tight bubbles out the cell wall of liquid bath, bubble was just vanished rapidly, and gas-tight bubbles out liquid bath can prevent effectively that bubble from entering down minim pipette.
The present invention is simple in structure, and production cost is low, can realize automatically, get rid of fast, up hill and dale the purpose of the air in the transfusion device, does not need medical personnel to carry out bleeding, and exhaust velocity is fast, and is safe and reliable.
Description of drawings
Fig. 1 is the structural representation of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 1.
Fig. 2 is the decomposition texture sketch map that the air of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 1 completely cuts off cover body and following minim pipette.
Fig. 3 is the decomposition texture sketch map that the air of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 2 completely cuts off cover body and following minim pipette.
Fig. 4 is the decomposition texture sketch map that the air of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 3 completely cuts off cover body and following minim pipette.
Fig. 5 is the structural representation of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 4.
Fig. 6 is the decomposition texture sketch map of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 4.
Fig. 7 is the structural representation that the air of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 4 completely cuts off cover body.
Fig. 8 is the decomposition texture sketch map of following minim pipette of the quick exhaust transfusion device of a kind of structure improved anti-bubble of embodiments of the invention 5.
Reference numeral
1---the following minim pipette of dropping funnel 2---last minim pipette 3---
4---air completely cuts off cover body 5---gas-tight bubbles out liquid bath 6---projective structure
7---position limiting structure 8---groove 9---steps
10---kelly 11---draw-in groove
12---first time minim pipette 13---second time minim pipette 14---round platforms.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described.
Shown in Fig. 1 ~ 2, the quick exhaust transfusion device of a kind of structure improved anti-bubble of present embodiment, it comprises dropping funnel 1, the upper end of described dropping funnel 1 is connected with last minim pipette 2, the bottom of described dropping funnel 1 is connected with following minim pipette 3, comprise that also air completely cuts off cover body 4, the isolated cover body 4 of described air cooperates with described minim pipette 3 down, and the isolated cover body 4 of described air or described minim pipette 3 down are provided with the gas-tight that makes liquid from bottom to top flow into down minim pipette 3 and bubble out liquid bath 5.
Particularly, the isolated cover body 4 of the described air of present embodiment is provided with the gas-tight that liquid is from bottom to top flowed in the described minim pipette 3 down and bubbles out liquid bath 5.
Operation principle of the present invention: when transfusion, liquid drips from last minim pipette 2, and the liquid that can not that drips enters down in the minim pipette 3 at once, and the liquid that drips drops on the isolated cover body 4 of air, and flow downward along the side of the isolated cover body 4 of air, and in dropping funnel 1 inner accumulated.Increase along with the liquid that drips from last minim pipette 2, the liquid level fast rise of liquid in the dropping funnel 1, and the velocity of discharge of the air of the speed that liquid level rises in the dropping funnel 1, therefore, fast rise along with the liquid level of liquid in the dropping funnel 1, air in the dropping funnel 1 is conducive to the air emptying in the dropping funnel 1 of transfusion device by Fast Compression.After the liquid level of liquid in the dropping funnel 1 surpasses the height of lower edge that gas-tight bubbles out liquid bath 5, liquid in the dropping funnel 1 bubbles out liquid bath by gas-tight and enters rapidly in the gap of the isolated cover body 4 of air and following minim pipette 3, at this moment, the pressure of compressed air acts on the liquid level of liquid in the dropping funnel 1 in the dropping funnel 1, increase the pressure that liquid enters the gap of the isolated cover body 4 of air and following minim pipette 3, add the pressure of the liquid self in the dropping funnel 1, under the combined effect of the hydraulic pressure of the liquid in the air pressure in dropping funnel 1 and the dropping funnel 1, make the liquid in the dropping funnel 1 when entering the gap of the isolated cover body 4 of air and following minim pipette 3, have bigger pressure, and this pressure is far longer than down the pressure of air residual in the minim pipette 3, therefore, liquid in dropping funnel 1 can enter the gap of the isolated cover body 4 of air and following minim pipette 3 fast, and minim pipette 3 under from bottom to top flowing into, liquid from bottom to top flows into down in the process of minim pipette 3, liquid that can not produces bubble simultaneously, the liquid that enters down minim pipette 3 can will descend air residual in the minim pipette 3 to exclude with fast speed, and can prevent effectively that bubble from producing.
The isolated cover body 4 of air can prevent that air from entering down minim pipette 3, prevents that effectively bubble from producing.In addition, when the liquid in the dropping funnel 1 produced bubble, when liquid entered gas-tight and bubbles out liquid bath 5, as long as bubble one contact gas-tight bubbles out the cell wall of liquid bath 5, bubble was just vanished rapidly, and gas-tight bubbles out liquid bath 5 can prevent effectively that bubble from entering down minim pipette 3.
The present invention is simple in structure, and production cost is low, can realize automatically, get rid of fast, up hill and dale the purpose of the air in the transfusion device, does not need medical personnel to carry out bleeding, and exhaust velocity is fast, and is safe and reliable.
Wherein, the isolated cover body 4 of described air is provided with projective structure 6, and described minim pipette 3 down is provided with position limiting structure 7, and described projective structure 6 cooperates with described position limiting structure 7.When present embodiment is in running order, the isolated cover body 4 of air is inverted the outer wall that is covered in down minim pipette 3, and projective structure 6 cooperates with position limiting structure 7, and the isolated cover body 4 of air closely is connected with following minim pipette 3, secluding air enters down minim pipette 3 effectively, prevents the generation of bubble.
Wherein, described gas-tight bubbles out liquid bath 5 and is two or more.Two or more gas-tight bubbles out liquid bath 5 and distributes equably, makes liquid enter down minim pipette 3 equably.
As shown in Figure 3, the difference of present embodiment and embodiment 1 is: the inboard of the isolated cover body 4 of the described air of present embodiment is provided with groove 8, and described minim pipette 3 down is provided with step 9, and described groove 8 cooperates with described step 9.When present embodiment is in running order, the isolated cover body 4 of air is inverted the outer wall that is covered in down minim pipette 3, and the isolated cover body 4 of air is connected with the mode that step 9 cooperates by groove 8 with following minim pipette 3, connects closely, more effectively the isolated air that enters down minim pipette 3 prevents the generation of bubble.
Unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.
As shown in Figure 4, the difference of present embodiment and embodiment 1 is: the described minim pipette 3 down of present embodiment is provided with the gas-tight that makes liquid from bottom to top flow into down minim pipette 3 and bubbles out liquid bath 5.
Wherein, the inboard of the isolated cover body 4 of described air is provided with groove 8, and described minim pipette 3 down is provided with step 9, and described groove 8 cooperates with described step 9.Described step 9 is provided with the gas-tight that makes liquid from bottom to top flow into described following minim pipette 3 and bubbles out liquid bath 5, and the lower edge of the isolated cover body 4 of described air is higher than the lower edge that described gas-tight bubbles out liquid bath 5.When present embodiment is in running order, the isolated cover body 4 of air is inverted the outer wall that is covered in step 9,1/2 of step 9 is arranged in the dropping funnel 1, other 1/2 is arranged at outside the dropping funnel 1, the height that gas-tight bubbles out liquid bath 5 be about step 9 height 1/4, the lower edge of the isolated cover body 4 of air is higher than the lower edge that described gas-tight bubbles out liquid bath 5.
The gas-tight of present embodiment bubbles out the step 9 that liquid bath 5 is arranged at down minim pipette 3, and it is lower that gas-tight bubbles out the position of liquid bath 5, and liquid is easier, promptly enter gas-tight bubbles out liquid bath 5, makes exhaust velocity of the present invention quicker, more stable.
Unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.
Shown in Fig. 5 ~ 7, the difference of present embodiment and embodiment 2 is: the bottom of the described dropping funnel 1 of present embodiment is provided with kelly 10, the bottom of the isolated cover body 4 of described air has extended round platform 14, and described round platform 14 is provided with draw-in groove 11, and described kelly 10 closely cooperates with described draw-in groove 11.
The dropping funnel 1 of present embodiment is connected by the isolated cover body 4 of air with following minim pipette 3, and dropping funnel 1 removably is connected with the isolated cover body 4 of air.
The dropping funnel 1 of present embodiment, following minim pipette 3, the isolated cover body 4 of air are independently parts, all very convenient aspect processing and assembling, and the production and processing and the product that do not influence whole transfusion device assemble, existing transfusion device manufacturing enterprise can both realize production of the present invention under the prerequisite of the production mould that does not change existing traditional infusion device, processing technique, production procedure and product structure.
Unaccounted feature adopts the explanation among the embodiment 2 in the present embodiment, no longer gives unnecessary details at this.
As shown in Figure 8, the difference of present embodiment and embodiment 4 is: the described minim pipette 3 down of present embodiment comprises that first time minim pipette 12 and 13, the first times minim pipettes 12 of second time minim pipette removably are connected with second time minim pipette 13; The junction of first time minim pipette 12 and second time minim pipette 13 is provided with filtration.First time minim pipette 12 can adopt the mode that is threaded to be connected with second time minim pipette 13; After also can adopting the mode of clamping to connect also can therein filtration to be installed, adopt yellow ethyl ketone bonding.
Wherein, described filtration is drainage screen or filter membrane.Drainage screen or filter membrane be impurity, the bubble in the filter liquide further, makes the liquid of conveying safer.
Unaccounted feature adopts the explanation among the embodiment 4 in the present embodiment, no longer gives unnecessary details at this.
The above embodiment, it is preferred embodiments of the present invention, be not to limit the scope of the present invention, so all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify, all should comprise in the patent claim of the present invention.
Claims (8)
1. quick exhaust transfusion device of structure improved anti-bubble, it comprises dropping funnel, the upper end of described dropping funnel is connected with last minim pipette, the bottom of described dropping funnel is connected with following minim pipette, it is characterized in that: comprise that also air completely cuts off cover body, the isolated cover body of described air cooperates with described minim pipette down, and the isolated cover body of described air is provided with the gas-tight that makes liquid from bottom to top flow into down minim pipette and bubbles out liquid bath; The inboard of the isolated cover body of described air is provided with groove, and described minim pipette down is provided with step, and described groove cooperates with described step; Step is arranged at down the middle part of minim pipette, and step outwards protrudes along the outer wall of following minim pipette, and step passes the outlet of dropping funnel lower end, and 1/2 of step is arranged in the dropping funnel, and other 1/2 is arranged at outside the dropping funnel; The bottom of described dropping funnel is provided with kelly, and the bottom of the isolated cover body of described air has extended round platform, and described round platform is provided with draw-in groove, and described kelly and described draw-in groove closely cooperate; The isolated cover body of air is inverted the outer wall that is covered in step, the height that gas-tight bubbles out liquid bath be step height 1/4.
2. quick exhaust transfusion device of structure improved anti-bubble, it comprises dropping funnel, the upper end of described dropping funnel is connected with last minim pipette, the bottom of described dropping funnel is connected with following minim pipette, it is characterized in that: comprise that also air completely cuts off cover body, the isolated cover body of described air cooperates with described minim pipette down, and described minim pipette down is provided with the gas-tight that makes liquid from bottom to top flow into down minim pipette and bubbles out liquid bath; The inboard of the isolated cover body of described air is provided with groove, and described minim pipette down is provided with step, and described groove cooperates with described step; Step is arranged at down the middle part of minim pipette, and step outwards protrudes along the outer wall of following minim pipette, and step passes the outlet of dropping funnel lower end, and 1/2 of step is arranged in the dropping funnel, and other 1/2 is arranged at outside the dropping funnel; The bottom of described dropping funnel is provided with kelly, and the bottom of the isolated cover body of described air has extended round platform, and described round platform is provided with draw-in groove, and described kelly and described draw-in groove closely cooperate; The isolated cover body of air is inverted the outer wall that is covered in step, the height that gas-tight bubbles out liquid bath be step height 1/4, the lower edge of the isolated cover body of air is higher than the lower edge that described gas-tight bubbles out liquid bath.
3. according to the quick exhaust transfusion device of the described a kind of structure improved anti-bubble of claim 1, it is characterized in that: the isolated cover body of described air is provided with the gas-tight that liquid is from bottom to top flowed in the described minim pipette down and bubbles out liquid bath, the isolated cover body of described air is provided with projective structure, described minim pipette down is provided with position limiting structure, and described projective structure cooperates with described position limiting structure.
4. the quick exhaust transfusion device of a kind of structure improved anti-bubble according to claim 1 and 2 is characterized in that: described minim pipette down comprises first time minim pipette and second time minim pipette, and first time minim pipette removably is connected with second time minim pipette; The junction of first time minim pipette and second time minim pipette is provided with filtration.
5. the quick exhaust transfusion device of a kind of structure improved anti-bubble according to claim 4, it is characterized in that: first time minim pipette and second time minim pipette are threaded.
6. according to the quick exhaust transfusion device of the described a kind of structure improved anti-bubble of claim 4, it is characterized in that: described filtration is drainage screen.
7. according to the quick exhaust transfusion device of the described a kind of structure improved anti-bubble of claim 4, it is characterized in that: described filtration is filter membrane.
8. the quick exhaust transfusion device of a kind of structure improved anti-bubble according to claim 1 and 2 is characterized in that: described gas-tight bubbles out liquid bath and is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110255128 CN102319462B (en) | 2011-08-31 | 2011-08-31 | Bubble-prevention fast exhaust transfusion device with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110255128 CN102319462B (en) | 2011-08-31 | 2011-08-31 | Bubble-prevention fast exhaust transfusion device with improved structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102319462A CN102319462A (en) | 2012-01-18 |
| CN102319462B true CN102319462B (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110255128 Expired - Fee Related CN102319462B (en) | 2011-08-31 | 2011-08-31 | Bubble-prevention fast exhaust transfusion device with improved structure |
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| CN (1) | CN102319462B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688534B (en) * | 2012-05-11 | 2014-02-12 | 魏颖德 | Multifunctional liquid medicine filter for infusion |
| CN103495224A (en) * | 2013-09-26 | 2014-01-08 | 淮安市恒春医疗器材有限公司 | Liquid-stopping tank-type automatic exhaust liquid-stopping infusion apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6402207B1 (en) * | 1997-06-09 | 2002-06-11 | Qd Enterprises, Llc | Safety indexed medical connectors |
| CN2360083Y (en) * | 1999-03-11 | 2000-01-26 | 冯淼 | Multifunctional disposable saftety transfusion system |
| CN201082285Y (en) * | 2007-10-24 | 2008-07-09 | 上海金塔医用器材有限公司 | Bubble prevention infusion device |
| CN201572395U (en) * | 2009-11-06 | 2010-09-08 | 魏颖德 | General fast exhaust component used for infusion apparatus |
| CN202283374U (en) * | 2011-08-31 | 2012-06-27 | 魏颖德 | Bubble-proof infusion apparatus with improved structure and rapid exhaust |
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2011
- 2011-08-31 CN CN 201110255128 patent/CN102319462B/en not_active Expired - Fee Related
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| CN102319462A (en) | 2012-01-18 |
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