CN201618259U - Bubble-free infusion device - Google Patents
Bubble-free infusion device Download PDFInfo
- Publication number
- CN201618259U CN201618259U CN2010201101971U CN201020110197U CN201618259U CN 201618259 U CN201618259 U CN 201618259U CN 2010201101971 U CN2010201101971 U CN 2010201101971U CN 201020110197 U CN201020110197 U CN 201020110197U CN 201618259 U CN201618259 U CN 201618259U
- Authority
- CN
- China
- Prior art keywords
- bubble
- dropper body
- dropping funnel
- dropper
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000003814 drug Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000002265 prevention Effects 0.000 abstract 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007799 cork Substances 0.000 abstract 1
- 210000004761 scalp Anatomy 0.000 abstract 1
- 210000003462 vein Anatomy 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 3
- 208000028399 Critical Illness Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a bubble-free infusion device, which comprises a cork puncture set, an air filter, a drip hopper, a flow regulator and a disposable scalp vein set, and is characterized in that a bubble prevention dropping device consists of a dropper body, a fixed seat of the dropper body and a connecting tube of the dropper body. During the normal infusion process, the bubble prevention dropping device makes the air pressure of the inside of the drip hopper and the outside reach the critical balance state, meanwhile, during the infusion process, the bubble prevention dropping device leads a liquid inlet hole on the dropper body to form height differential pressure with a liquid inlet needle, so air and liquid can not simultaneously flow out, and the infusion process is ensured to be free of bubble. The utility model has the following advantages that: 1, the bubble removing performance is more stable; 2, the drip hopper does not need to be squeezed during the use process; 3, the whole infusion has simple operation steps, and does not need to add any operation step; 4, after the infusion, the drip hopper does not have liquid medicine residual phenomenon; and 5, the utility model is very beneficial to rapid infusion in an emergency, and saves time for rescuing serious patients.
Description
Technical field
This utility model relates to disposable use medical apparatus and instruments, especially relates to a kind of bubble-free infusion set.
Background technology
At present, the general infusion set that medical field is commonly used is formed by bottle plug puncture unit, air filter, last dropper, dropping funnel, flow regulator, transfusion catheter, liquid medicine filter and disposable use venoclysis 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 micro-bubble in the transfusion catheter has surface tension, these micro-bubbles can be adsorbed on the inwall of transfusion catheter in the infusion process, and the bubble ratio that therefore eliminating produces is difficulty.These bubbles enter the intravital danger of patient in infusion process, cause the harm that causes patient's aeroembolism because of bubble.So medical personnel infuse after the bubble in the transfusion catheter must being discharged fully before infusing 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 time-consuming, and its deflated stability is not high yet, are unfavorable for urgent transfusion and rescue critically ill patient.
Summary of the invention
The purpose of this utility model be to provide a kind of can stop in infusion process because of pressure and gravity enter fast bubble in the conduit, again can stop simultaneously micro-bubble the absorption of pipe inner wall, esy to use, safe and reliable, do not increase any operating procedure, novel bubble-free infusion set simple in structure.
The purpose of this utility model is achieved in that this utility model comprises bottle plug puncture unit, air filter, transfusion catheter, last dropper, dropping funnel, flow regulator, liquid medicine filter and disposable use venoclysis needle, feature is also to comprise anti-bubble dropper, incorporate anti-bubble dropper is by the dropper body of top, the dropper body connecting duct of intermediary dropper body holder and below is formed, dropper body holder is fixed on the dropping funnel mouth place of dropping funnel lower end, dropper body holder constitutes the dropping funnel chamber of sealing with dropping funnel, and the dropper body connecting duct that is in the dropping funnel outside is connected with the liquid feeding end of flow regulator; Being processed with two in the dropper body in being in the dropping funnel chamber is spaced from each other and the feed tube and the balance pipe of upper end closed, the lower end of feed tube is passed dropper body holder and is communicated with dropper body connecting duct, left side wall middle and lower part at the dropper body is processed with the inlet opening that communicates with feed tube, in feed tube, be placed with up and down equal openings and be shorter in length than the feed liquor pin of feed tube, the top of feed liquor pin is higher than inlet opening, and inlet opening, feed tube and feed liquor pin have constituted liquid in-out height pressure difference system jointly; Left side wall middle and upper part at the dropper body is processed with the steam vent that communicates with balance pipe, in balance pipe, be placed with up and down equal openings and be shorter in length than the air pressure balance pin of balance pipe, be processed with air inlet vertical with balance pipe and that communicate on the right side wall of dropper body holder, air inlet, balance pipe, air pressure balance pin and steam vent have constituted the inner and extraneous pneumatics balance sysmte of dropping funnel jointly; At the air inlet pipe internal fixation air filter membrane is arranged.
Be processed with the feed tube annular protrusion that is used to hold feed liquor pin bottom in the lower end of up big and down small feed tube, be processed with the balance pipe annular protrusion that is used to hold air pressure balance pin bottom in the lower end of up big and down small balance pipe; Or the lower end of up big and down small feed tube is tightly filled in and be fixed in the lower end of feed liquor pin, the lower end that up big and down small balance pipe is tightly filled in and be fixed in the lower end of air pressure balance pin.
The top of feed liquor pin is lower than the top of air pressure balance pin.
Right-hand member in air inlet is processed with the annular boss that prevents that the air filtration film from deviating from.
On the right side wall of dropper body holder, be processed with can overturn and can jam-pack air inlet, be used to detect the equilibrated inlet valve of dropping funnel intracavity air pressure.
This utility model is to have set up on the basis of traditional infusion device by the dropper body, the incorporate anti-bubble dropper that dropper body holder and dropper body connecting duct are formed, and in the dropper body, be separately installed with feed liquor pin and air pressure balance pin in feed tube spaced apart from each other and the balance pipe, on the sidewall of dropper body, be processed with inlet opening and steam vent respectively, on the sidewall of dropper body holder, be processed with air inlet, the top of feed liquor pin is higher than inlet opening, thereby, steam vent, feed tube and feed liquor pin have constituted liquid in-out height pressure difference system, air inlet jointly, balance pipe, air pressure balance pin and steam vent have constituted the inner and extraneous pneumatics balance sysmte of dropping funnel jointly.Like this in the normal infusion process, medicinal liquid in the medicine bottle flows to by bottle plug puncture unit and transfusion catheter and goes up dropper, because the influence of gravity and pressure, medicinal liquid can enter rapidly in the dropping funnel, extraneous pneumatics balance sysmte communicates the inside and outside air of dropping funnel, be that the dropping funnel intracavity is identical with external air pressure, medicinal liquid is slowly risen and can not flow out rapidly that the air of dropping funnel intracavity will be discharged by the steam vent place.In dropping funnel, be provided with liquid in-out height pressure difference system, when the medicinal liquid height of dropping funnel intracavity constantly rises, medicinal liquid can be entered by inlet opening, because inner air and outer air pressure balance, medicinal liquid will slowly rise along the slit between feed tube and the feed liquor pin, air in uphill process in the liquid in-out height pressure difference system also will be discharged from inlet opening thereupon, when the medicinal liquid rising arrives the top end of feed liquor pin, medicinal liquid will flow out in the flow regulator downwards along the feed liquor pin, because this moment, medicinal liquid covered the top of feed liquor pin, the air pressure of dropping funnel intracavity also is in borderline balance state with the external world, air can't enter the flow regulator from the top of feed liquor pin, can't flow out simultaneously with liquid thereby reached gas, bubble-free purpose in the whole infusion process.Therefore, the utlity model has following advantage: 1, under compared with similar products, the performance of getting rid of bubble is more stable; 2, need not to push dropping funnel in the use; 3, whole transfusion operation step is simple, need not to increase any operating procedure; No medicinal liquid residual phenomena in dropping funnel when 4, transfusion finishes; 5, very help transfusion fast under the state of emergency, race against time for rescuing critically ill patient.
Description of drawings
Fig. 1 is a cross-sectional schematic of the present utility model;
Fig. 2 is the structural representation of anti-bubble generator;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the cross-sectional schematic of anti-bubble generator among the embodiment 1;
Fig. 5 is that the A-A of Fig. 4 is to cross-sectional schematic;
Fig. 6 is the cross-sectional schematic of anti-bubble generator among the embodiment 2.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing this utility model is described in further detail.
Embodiment 1:
This utility model comprises bottle plug puncture unit 1, air filter 2, transfusion catheter 3, last dropper 4, dropping funnel 5, anti-bubble dropper 7, flow regulator 9, liquid medicine filter 10 and disposable use venoclysis needle 11 are formed, incorporate anti-bubble dropper 7 is by the dropper body 12 of top, the dropper body connecting duct 15 of intermediary dropper body holder 14 and below is formed, dropper body holder 14 is fixed on dropping funnel mouth 8 places of dropping funnel 5 lower ends, dropper body holder 14 constitutes the dropping funnel chamber of sealing 6 with dropping funnel 5, and the dropper body connecting duct 15 that is in dropping funnel 5 outsides is connected with the liquid feeding end of flow regulator 9; Being processed with two in the dropper body 12 in being in dropping funnel chamber 6 is spaced from each other and the vertical feed tube 18 and the balance pipe 21 of upper end closed, the lower end of feed tube 18 is passed dropper body holder 14 and is communicated with dropper body connecting duct 15, be processed with the inlet opening 13 that communicates with feed tube 18 in the left side wall middle and lower part of dropper body 12, in feed tube 18, be placed with up and down equal openings and be shorter in length than the feed liquor pin 19 of feed tube 18, the top of feed liquor pin 19 is higher than inlet opening 13, and inlet opening 13, feed tube 18 and feed liquor pin 19 have constituted liquid in-out height pressure difference system jointly; Be processed with the steam vent 16 that communicates with balance pipe 21 in the left side wall middle and upper part of dropper body 12, in balance pipe 21, be placed with up and down equal openings and be shorter in length than the air pressure balance pin 20 of balance pipe 21, on the right side wall of dropper body holder 14, be processed with air inlet 24 vertical with balance pipe 21 and that communicate, air inlet 24, balance pipe 21, air pressure balance pin 20 and steam vent 16 constituted jointly dropping funnel inner with extraneous pneumatics balance sysmte; At air inlet 24 internal fixation air filter membrane 22 is arranged.
Be processed with the feed tube annular protrusion 25 that is used to hold feed liquor pin 19 bottoms in the lower end of up big and down small feed tube 18, be processed with the balance pipe annular protrusion 26 that is used to hold air pressure balance pin 20 bottoms in the lower end of up big and down small balance pipe 21.
The top of feed liquor pin 19 is lower than the top of air pressure balance pin 20.
Right-hand member in air inlet 24 is processed with the annular boss 23 that prevents that air filtration film 22 from deviating from.
On the right side wall of dropper body holder 14, be processed with can overturn and can jam-pack air inlet 24, be used to detect the equilibrated inlet valve 17 of dropping funnel chamber 6 inner air pressures.
Embodiment 2:
The structure of embodiment 2 is substantially the same manner as Example 1, and difference is:
Claims (6)
1. bubble-free infusion set, comprise bottle plug puncture unit (1), air filter (2), transfusion catheter (3), last dropper (4), dropping funnel (5), flow regulator (9), liquid medicine filter (10) and disposable use venoclysis needle (11), it is characterized in that: also comprise anti-bubble dropper (7), incorporate anti-bubble dropper (7) is by the dropper body (12) of top, the dropper body connecting duct (15) of intermediary dropper body holder (14) and below is formed, dropper body holder (14) is fixed on the dropping funnel mouth (8) of dropping funnel (5) lower end and locates, dropper body holder (14) constitutes the dropping funnel chamber of sealing (6) with dropping funnel (5), and the dropper body connecting duct (15) that is in dropping funnel (5) outside is connected with the liquid feeding end of flow regulator (9); Being processed with two in the dropper body (12) in being in dropping funnel chamber (6) is spaced from each other and the vertical feed tube (18) and the balance pipe (21) of upper end closed, the lower end of feed tube (18) is passed dropper body holder (14) and is communicated with dropper body connecting duct (15), be processed with the inlet opening (13) that communicates with feed tube (18) in the left side wall middle and lower part of dropper body (12), in feed tube (18), be placed with up and down equal openings and be shorter in length than the feed liquor pin (19) of feed tube (18), the top of feed liquor pin (19) is higher than inlet opening (13), inlet opening (13), feed tube (18) and feed liquor pin (19) have constituted liquid in-out height pressure difference system jointly; Be processed with the steam vent (16) that communicates with balance pipe (21) in the left side wall middle and upper part of dropper body (12), in balance pipe (21), be placed with up and down equal openings and be shorter in length than the air pressure balance pin (20) of balance pipe (21), be processed with air inlet (24) vertical with balance pipe (21) and that communicate on the right side wall of dropper body holder (14), air inlet (24), balance pipe (21), air pressure balance pin (20) and steam vent (16) have constituted the inner and extraneous pneumatics balance sysmte of dropping funnel jointly; At air inlet (24) internal fixation air filter membrane (22) is arranged.
2. bubble-free infusion set as claimed in claim 1 is characterized in that: the top of feed liquor pin (19) is lower than the top of air pressure balance pin (20).
3. bubble-free infusion set as claimed in claim 2, it is characterized in that: be processed with the feed tube annular protrusion (25) that is used to hold feed liquor pin (19) bottom in the lower end of up big and down small feed tube (18), be processed with the balance pipe annular protrusion (26) that is used to hold air pressure balance pin (20) bottom in the lower end of up big and down small balance pipe (21).
4. bubble-free infusion set as claimed in claim 3 is characterized in that: feed liquor pin (19) is integrated to be injection-moulded in the up big and down small feed tube (18), and air pressure balance pin (20) is integrated to be injection-moulded in the up big and down small balance pipe (21).
5. bubble-free infusion set as claimed in claim 4 is characterized in that: the right-hand member in air inlet (24) is processed with the annular boss (23) that prevents that air filtration film (22) from deviating from.
6. bubble-free infusion set as claimed in claim 5 is characterized in that: on the right side wall of dropper body holder (14), be processed with can overturn and can jam-pack air inlet (24), be used to detect the equilibrated inlet valve of dropping funnel chamber (6) inner air pressure (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201101971U CN201618259U (en) | 2010-02-08 | 2010-02-08 | Bubble-free infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201101971U CN201618259U (en) | 2010-02-08 | 2010-02-08 | Bubble-free infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201618259U true CN201618259U (en) | 2010-11-03 |
Family
ID=43021713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201101971U Expired - Lifetime CN201618259U (en) | 2010-02-08 | 2010-02-08 | Bubble-free infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201618259U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284101A (en) * | 2011-07-07 | 2011-12-21 | 李林风 | Safety transfusion system with improved dropping funnel ventilation |
| CN102319468A (en) * | 2011-07-25 | 2012-01-18 | 广东工业大学 | Closed-type air remover for disposable transfusion apparatus/blood transfusion apparatus |
| CN102350014A (en) * | 2011-09-09 | 2012-02-15 | 浙江康泰医疗器械有限公司 | Infusion set |
| CN104248787A (en) * | 2013-06-07 | 2014-12-31 | 江西丽华鑫朗药业科技有限公司 | Double-layered precision automatic infusion-stopping infusion set |
| CN104570508A (en) * | 2014-12-24 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal infusion device |
| CN108295333A (en) * | 2018-01-30 | 2018-07-20 | 江西洪达医疗器械集团有限公司 | A kind of disposable transfusion device |
-
2010
- 2010-02-08 CN CN2010201101971U patent/CN201618259U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284101A (en) * | 2011-07-07 | 2011-12-21 | 李林风 | Safety transfusion system with improved dropping funnel ventilation |
| CN102319468A (en) * | 2011-07-25 | 2012-01-18 | 广东工业大学 | Closed-type air remover for disposable transfusion apparatus/blood transfusion apparatus |
| CN102350014A (en) * | 2011-09-09 | 2012-02-15 | 浙江康泰医疗器械有限公司 | Infusion set |
| CN104248787A (en) * | 2013-06-07 | 2014-12-31 | 江西丽华鑫朗药业科技有限公司 | Double-layered precision automatic infusion-stopping infusion set |
| CN104570508A (en) * | 2014-12-24 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal infusion device |
| CN104570508B (en) * | 2014-12-24 | 2017-10-13 | 深圳市华星光电技术有限公司 | Liquid crystal drip device |
| CN108295333A (en) * | 2018-01-30 | 2018-07-20 | 江西洪达医疗器械集团有限公司 | A kind of disposable transfusion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101103 Effective date of abandoning: 20110817 |