CN101461972A - Disposable automatic stop type anti-counterflow infusion device - Google Patents
Disposable automatic stop type anti-counterflow infusion device Download PDFInfo
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- CN101461972A CN101461972A CNA2008100407737A CN200810040773A CN101461972A CN 101461972 A CN101461972 A CN 101461972A CN A2008100407737 A CNA2008100407737 A CN A2008100407737A CN 200810040773 A CN200810040773 A CN 200810040773A CN 101461972 A CN101461972 A CN 101461972A
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- dropping funnel
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- loam cake
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Abstract
The utility model relates to a disposable automatic stop anti-reflux infusion apparatus, which comprises an infusion puncture outfit, a dropping funnel assembly of the puncture outfit, an upper catheter, a lower catheter, a regulator, a dosing tee triple chemical feed pipe and 6 percent Luer movable locking external taper. The infusion puncture outfit is arranged at one end of the dropping funnel assembly of the puncture outfit, and one end of the lower catheter is connected to the dropping funnel assembly of the puncture outfit while the other end is connected with the dosing tee through the regulator; the dosing tee is connected with the 6 percent Luer movable locking external taper through the upper catheter; and the lower catheter is connected in series with a one way valve. The dropping funnel assembly of the puncture outfit comprises a dropping funnel and a safety valve arranged inside the dropping funnel. The safety valve can seal the drip hole of the dropping funnel as soon as the liquid is dripped off, and stops infusion, thereby preventing air from entering and causing thrombus. The one way valve allows the liquid to flow in one direction, so that blood return cannot happen due to various causes in the infusion process.
Description
Technical field
The present invention relates to a kind of disposable infusion set, be particularly related to a kind of transfusion device function that has check valve, clinical be used for infusing prevent that air admission, infusion process from preventing the finish disposable use automatic stop type anti-counterflow infusion device of rear defence non-return blood of blood back, transfusion after finishing.
Background technology
All the time, medical transfusion has a quite annoying difficult problem perplexing doctor and patient for a long time, and promptly in the infusion process, particularly when liquid will be use up in the bottle, hospitalized patients must be careful the height of bottle interior liquid level.Under the many bottles of situations of infusing continuously of particularly now often carrying out, the work of accompanying and attending to is very easily neglected.When a bottle liquid medicine is totally lost, after the tube for transfusion emptying, not only the blood back phenomenon can appear, also can enter a large amount of air in the liquid pipe.And the bleeding of this moment makes mistakes as if idol, and bubble is got rid of endless in the liquid pipe, causes these bubbles to enter patient's blood vessel, just the generation that might cause bubble to block.
Above-mentioned situation has seriously exposed the congenital design defect of common disposable transfusion device aspect transfusion operation.
Common disposable transfusion device is in infusion process, and the back untimely replacing or pull out if transfusion finishes is not in time found as patient and nursing staff.Can produce the air thrombosis to a certain extent.
Common disposable transfusion device is in infusion process, and the patient may changing position, perhaps goes out, and may cause transfusion position than liquid level height in the dropping funnel like this, and the human pressure is higher than the tube for transfusion internal pressure, blood back can occur like this.And blood back may cause blood vessel blockage for a long time.
Common disposable transfusion device is after transfusion finishes, and the patient may changing position etc., may cause transfusion position than liquid level height in the dropping funnel like this, and the human pressure is higher than the tube for transfusion internal pressure, blood back can occur like this.And blood back may cause blood vessel blockage for a long time.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of disposable use automatic stop type anti-counterflow infusion device, to solve the existing existing many weak points of common disposable transfusion device.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
Disposable use automatic stop type anti-counterflow infusion device, comprise vein puncture device, perforator dropping funnel molectron, upper conduit, downcomer, actuator, dosing threeway, the removable locking-type external taper in 6% Rule, described vein puncture device is installed in an end of described perforator dropping funnel molectron, one end of described downcomer connects described perforator dropping funnel molectron, the other end passes actuator and connects the dosing threeway, the dosing threeway connects the removable locking-type external taper in 6% Rule by upper conduit, it is characterized in that serial connection one check valve on described downcomer.
Check valve of the present invention is by loam cake, constitute by diaphragm, following, being provided with one in the described loam cake connects last liquid-through hole, first diffusion chamber of whole loam cake and seals anchor ring, describedly go up liquid-through hole, second diffusion chamber and sealing anchor ring three concentric, and go up liquid-through hole and first diffusion chamber connects; Be provided with one in described following and connect whole following following liquid-through hole, second diffusion chamber and some projectioies, described liquid-through hole down is concentric and perforation mutually with second diffusion chamber, described some projectioies are positioned at second diffusion chamber and are that the center of circle is distributed on described liquid-through hole periphery down with the central axis of described down liquid-through hole, outstanding following and stretch in first diffusion chamber of described loam cake of described some projectioies; Described loam cake and a following sealing paste lump together, and the described diaphragm that ends is installed between described loam cake and following, and is arranged in the sealing anchor ring of described loam cake; Upper and lower liquid-through hole and downcomer on described loam cake and following connect.
Perforator dropping funnel molectron of the present invention comprises a dropping funnel and is installed in the interior relief valve of dropping funnel, the bottom of described dropping funnel has a dropper that is connected with the vein puncture device, the bucket chamber of dripping in hole and the described dropping funnel in the described dropper connects, be provided with a lantern ring at described dropping funnel inner bottom surface, have a fluid-tight face on the lantern ring; Described relief valve comprises a float and is attached to the soft diaphragm of float bottom, and the danger that prevents that the air admission blood vessel is interior and cause thrombosis is played in the fluid-tight face combined effect on described soft diaphragm and the described lantern ring.
Relief valve of the present invention can drip off moment at liquid, the hole of dripping of dropping funnel is shut, thereby stop transfusion, can prevent air admission like this and causes the danger of thrombosis.Check valve allows the liquid one-way flow, is unlikely in the infusion process owing to a variety of causes causes blood back.
The present invention also has following function:
1, can stop transfusion automatically after transfusion finishes.The back untimely replacing or pull out if transfusion finishes is not in time found as patient and nursing staff, therefore can prevent to produce thrombosis to a certain extent.
2, in the infusion process can prevent blood back after, transfusion finishes.
3, blood refluxes in the time of can avoiding arterial infusion.
4, below check valve, can prevent that liquid can be back in the dropping funnel during feeding operations, make dosing can enter blood fast, and not by Macrodilution, clinical efficacy be good.
When 5, changing infusion bottle, do not worry that gas can enter tube for transfusion.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of the disposable use automatic stop type anti-counterflow infusion device of the present invention.
Fig. 2 is the structural representation of check valve of the present invention.
Fig. 3 is a perforator dropping funnel assembling unit structure sketch map of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, a nearly step is set forth the present invention.
Referring to Fig. 1, disposable use automatic stop type anti-counterflow infusion device, comprise vein puncture device 1, perforator dropping funnel molectron 2, upper conduit 3, downcomer 4, actuator 5, dosing threeway 6, the removable locking-type external taper 7 in 6% Rule, vein puncture device 1 is installed in an end of perforator dropping funnel molectron 2, one end of downcomer 4 connects perforator dropping funnel molectron 2, the other end passes actuator 5 and connects dosing threeway 6, dosing threeway 6 connects the removable locking-type external taper 7 in 6% Rule by upper conduit 3, seals in a check valve 3 in downcomer 4.
Referring to Fig. 2, check valve 8 by loam cake 80, by diaphragm 81, constitute for following 82, being provided with one in the loam cake 80 connects last liquid-through hole 801, first diffusion chamber 802 of whole loam cake 80 and seals anchor ring 803, last liquid-through hole 801, second diffusion chamber 802 and sealing anchor ring 803 three's concentrics, and go up liquid-through hole 801 and first diffusion chamber 802 connects.
Be provided with one in the following seat 82 and connect whole following following liquid-through hole 821, second diffusion chamber 822 and some protruding 823, following liquid-through hole 821 and the 822 concentric and perforations mutually of second diffusion chamber, some protruding 823 central axis that are positioned at second diffusion chamber 822 and following liquid-through hole 821 are that the center of circle is distributed on down liquid-through hole 821 peripheries.
Referring to Fig. 3, perforator dropping funnel molectron 2 comprises a dropping funnel 20 and the relief valve that is installed in the dropping funnel 20, has a dropper 201 that is connected with vein puncture device 1 in the bottom of dropping funnel 20, the bucket chamber of dripping in hole and the dropping funnel 20 in the dropper 201 connects, be provided with a lantern ring 202 at dropping funnel 20 inner bottom surfaces, have a fluid-tight face on the lantern ring 202.
Relief valve comprises a float 21 and is attached to the soft diaphragm 22 of float 21 bottoms, and the fluid-tight face combined effect on soft diaphragm 22 and the lantern ring 202 plays preventing in the air admission blood vessel and cause the danger of thrombosis.
This embodiment seals in a check valve 8 in downcomer 4, because by diaphragm 81 and loam cake 80, the gap is very little between following 82, when the liquid reverse flow, medicinal liquid enters into second diffusion chamber by following 82 following liquid-through hole 821 and gathers 822, promotes the sealing anchor rings 803 in diaphragm 81 contact loam cakes 80 and seals; When the liquid forward flow, medicinal liquid enters into first diffusion chamber by the last liquid-through hole 801 of loam cake 80 and gathers 802, promote to move downward by diaphragm 81, since by diaphragm 81 by following 82 some protruding 823 support and can not and between following 82 formation seal, therefore allow liquid to pass through, adopt said structure, be unlikely in the infusion process owing to a variety of causes causes blood back.
In perforator dropping funnel molectron 2 relief valve is installed in dropping funnel 20, when liquid normally drips,, the fluid-tight face on the lantern ring 202 in soft diaphragm 22 and the dropping funnel 20 is separated owing to float 21 autologous densities of relief valve float than liquid is little.When liquid drips off soon, the float 21 of relief valve is owing to self gravitation falls, fluid-tight face on the lantern ring 202 in the soft diaphragm 22 of relief valve and the dropping funnel 20 contacts, along with liquid continues following, fluid-tight face on the lantern ring 202 in soft diaphragm 22 and dropping funnel 20 is fitted firmly, thereby stops transfusion.So just can prevent air admission and cause the danger of thrombosis.
When changing defeated bottle, because the gravity of the float 21 of relief valve makes also there is certain amount of fluid in the dropping funnel 20, behind the replacing infusion bottle, can not cause the air admission tube for transfusion, avoided the air admission human body.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. disposable use automatic stop type anti-counterflow infusion device, comprise vein puncture device, perforator dropping funnel molectron, upper conduit, downcomer, actuator, dosing threeway, the removable locking-type external taper in 6% Rule, described vein puncture device is installed in an end of described perforator dropping funnel molectron, one end of described downcomer connects described perforator dropping funnel molectron, the other end passes actuator and connects the dosing threeway, the dosing threeway connects the removable locking-type external taper in 6% Rule by upper conduit, it is characterized in that serial connection one check valve on described downcomer.
2. disposable use automatic stop type anti-counterflow infusion device according to claim 1, it is characterized in that, described check valve is by loam cake, constitute by diaphragm, following, being provided with one in the described loam cake connects last liquid-through hole, first diffusion chamber of whole loam cake and seals anchor ring, describedly go up liquid-through hole, second diffusion chamber and sealing anchor ring three concentric, and go up liquid-through hole and first diffusion chamber connects; Be provided with one in described following and connect whole following following liquid-through hole, second diffusion chamber and some projectioies, described liquid-through hole down is concentric and perforation mutually with second diffusion chamber, described some projectioies are positioned at second diffusion chamber and are that the center of circle is distributed on described liquid-through hole periphery down with the central axis of described down liquid-through hole, outstanding following and stretch in first diffusion chamber of described loam cake of described some projectioies; Described loam cake and a following sealing paste lump together, and the described diaphragm that ends is installed between described loam cake and following, and is arranged in the sealing anchor ring of described loam cake; Upper and lower liquid-through hole and downcomer on described loam cake and following connect.
3. disposable use automatic stop type anti-counterflow infusion device according to claim 1 and 2, it is characterized in that, described perforator dropping funnel molectron comprises a dropping funnel and is installed in the interior relief valve of dropping funnel, the bottom of described dropping funnel has a dropper that is connected with the vein puncture device, the bucket chamber of dripping in hole and the described dropping funnel in the described dropper connects, be provided with a lantern ring at described dropping funnel inner bottom surface, have a fluid-tight face on the lantern ring; Described relief valve comprises a float and is attached to the soft diaphragm of float bottom, and the danger that prevents that the air admission blood vessel is interior and cause thrombosis is played in the fluid-tight face combined effect on described soft diaphragm and the described lantern ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100407737A CN101461972A (en) | 2008-07-18 | 2008-07-18 | Disposable automatic stop type anti-counterflow infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100407737A CN101461972A (en) | 2008-07-18 | 2008-07-18 | Disposable automatic stop type anti-counterflow infusion device |
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| CN101461972A true CN101461972A (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100407737A Pending CN101461972A (en) | 2008-07-18 | 2008-07-18 | Disposable automatic stop type anti-counterflow infusion device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313753A (en) * | 2010-11-24 | 2013-09-18 | 阿西斯特医疗系统有限公司 | Contrast media injector syringe inlet valve system |
| CN104174103A (en) * | 2014-08-27 | 2014-12-03 | 罗爱国 | Anti-backflow infusion set |
| CN104759008A (en) * | 2015-04-16 | 2015-07-08 | 北京伏尔特技术有限公司 | Repeated automatic liquid stop infusion apparatus and using method thereof |
| US10376687B2 (en) | 2012-10-16 | 2019-08-13 | Acist Medical Systems, Inc. | Controlling flow in a medical injection system |
| CN113368335A (en) * | 2021-06-05 | 2021-09-10 | 浙江康泰医疗器械有限公司 | Multifunctional infusion apparatus |
| US11560964B2 (en) | 2020-08-21 | 2023-01-24 | Acist Medical Systems, Inc. | Valve actuation device coupling |
-
2008
- 2008-07-18 CN CNA2008100407737A patent/CN101461972A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313753A (en) * | 2010-11-24 | 2013-09-18 | 阿西斯特医疗系统有限公司 | Contrast media injector syringe inlet valve system |
| CN103313753B (en) * | 2010-11-24 | 2016-08-24 | 阿西斯特医疗系统有限公司 | The inlet valve system of contrast medium injector injection tube |
| US10322277B2 (en) | 2010-11-24 | 2019-06-18 | Acist Medical Systems, Inc. | Contrast media injector syringe inlet valve system |
| US10376687B2 (en) | 2012-10-16 | 2019-08-13 | Acist Medical Systems, Inc. | Controlling flow in a medical injection system |
| CN104174103A (en) * | 2014-08-27 | 2014-12-03 | 罗爱国 | Anti-backflow infusion set |
| CN104759008A (en) * | 2015-04-16 | 2015-07-08 | 北京伏尔特技术有限公司 | Repeated automatic liquid stop infusion apparatus and using method thereof |
| CN104759008B (en) * | 2015-04-16 | 2019-07-05 | 北京伏尔特技术有限公司 | A kind of automatic liquid-stopping transfusion apparatus and its application method repeatedly |
| US11560964B2 (en) | 2020-08-21 | 2023-01-24 | Acist Medical Systems, Inc. | Valve actuation device coupling |
| CN113368335A (en) * | 2021-06-05 | 2021-09-10 | 浙江康泰医疗器械有限公司 | Multifunctional infusion apparatus |
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Open date: 20090624 |