CN102935256A - One-way valve for infusion - Google Patents

One-way valve for infusion Download PDF

Info

Publication number
CN102935256A
CN102935256A CN2012105149827A CN201210514982A CN102935256A CN 102935256 A CN102935256 A CN 102935256A CN 2012105149827 A CN2012105149827 A CN 2012105149827A CN 201210514982 A CN201210514982 A CN 201210514982A CN 102935256 A CN102935256 A CN 102935256A
Authority
CN
China
Prior art keywords
infusion
housing
way valve
house
transfusion
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.)
Pending
Application number
CN2012105149827A
Other languages
Chinese (zh)
Inventor
宋修山
李会娟
马才
李小兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Weigao Group Medical Polymer Co Ltd
Original Assignee
Shandong Weigao Group Medical Polymer Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Weigao Group Medical Polymer Co Ltd filed Critical Shandong Weigao Group Medical Polymer Co Ltd
Priority to CN2012105149827A priority Critical patent/CN102935256A/en
Publication of CN102935256A publication Critical patent/CN102935256A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a one-way valve for infusion. The one-way valve comprises an upper housing, a lower housing, a latex sphere and a spring, wherein infusion channels are respectively formed in the upper housing and the lower housing; a supporting separating plate with a circular through hole is arranged on the upper end surface of the lower housing; the lower housing and the upper housing are integrally fixed in an adhering manner, and a tapered hollow cavity is formed between the lower housing and the upper housing; the latex sphere and the spring are arranged in the tapered hollow cavity; the bottom end of the spring is fixed on the supporting separating plate at the lower housing and while the top end of the spring is used for supporting the latex sphere at the upper part of the tapered hollow cavity; and the latex sphere blocks below the outlet of the infusion channel of the upper housing. The one-way valve for infusion is reasonable in structure and convenient and reliable in use, and has the function of stopping blood returning, so that the safety in infusion is ensured; and the one-way valve for infusion is an ideal one-way valve for infusion, which is suitable for being arranged on a medical infusion device, and can ensure the one-way flow in infusion and blood transfusion.

Description

A kind of transfusion one-way valve
Technical field
The present invention relates to a kind of medical Transfusion device additional device, specifically a kind of transfusion one-way valve.
Background technology
At present, disposable infusion set is widely used in venous transfusion.When patient at changing position, the arm of raising one's hand, when walking about, may make transfusion position higher than dropping funnel liquid level, blood back can appear; When the human pressure is higher than infusion pressure, also blood back can appear; When nursing staff's Comparision is busy, if having little time to close tube for transfusion, blood back appears easily also; This has caused the feared state of mind not only for the patient to a certain extent, and long-time blood back, can cause blood vessel embolism, and is very dangerous.Because transfusion device small volume, cost are low, higher to the requirement of check valve, so up to now, disposable transfusion device does not still have the return blood function.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of structure reasonable, easy to use, reliable, has the return blood function, improves the transfusion one-way valve of infusion safety.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of transfusion one-way valve, it comprises upper shell, lower house, latex balloon, spring, it is characterized in that: described upper shell and lower house are respectively equipped with infusion channel, the lower house upper surface is provided with the supporting clapboard with manhole, lower house and upper shell are gluing fixedly to be integral, intermediate formation one conical cavity, described latex balloon and spring fitting are in conical cavity, the spring bottom is fixed on the supporting clapboard of lower house, apical support is positioned at the latex balloon on conical cavity top, and the latex balloon shutoff is below the infusion channel outlet of upper shell.
Described lower house supporting clapboard is circular, and several manholes evenly distribute on it.Manhole is communicated with the infusion channel of upper shell and lower house.
Described lower house supporting clapboard center is provided with a projection that is fixed with the spring bottom.
Described lower house is provided with tapped female Luer.Female Luer communicates with the infusion channel of lower house, be used for to connect the normal component in transfusion downstream, such as the remaining needle joint etc.
Described upper shell is provided with the pipe joint with infusion channel.Be used for to connect the transfusion device upstream, such as dropping funnel etc.Conical cavity is communicated with the infusion channel of this pipe joint.
When the present invention uses, the normal infusion process, latex balloon overcomes spring supporting under the pressure of top circulating liquid, to bottom offset, open infusion channel, and liquid flows to female Luer by the upper shell infusion channel.When transfusion end or other abnormal condition, the resilient support of spring makes latex balloon get back to original position, blocks the infusion channel of upper shell, and the infusion channel blocking-up like this, has just realized the one-way flow of liquid.Against existing technologies, the present invention constructs rationally, and is easy to use, reliable, has the return blood function, improved infusion safety.It is a kind of desirable transfusion one-way valve.The present invention is applicable to be installed on the medical Transfusion device, guarantees the one-way flow of transfusion, blood transfusion.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is composition structural representation of the present invention.
1. lower houses among the figure, 2. upper shell, 3. latex balloon, 4. spring, 11. female Luer, 12. infusion channel, 13. supporting clapboards, 131. manholes, 132. projections, 21. conical cavities, 22. infusion channel.
The specific embodiment
As can be seen from Figure 1, a kind of transfusion one-way valve, it comprises upper shell 2, lower house 1, latex balloon 3, spring 4 etc.Described upper shell 2 and lower house 1 are respectively equipped with infusion channel 22 and infusion channel 12, and lower house 1 upper surface is provided with the supporting clapboard 13 with manhole 131.Lower house 1 and upper shell 2 stick with glue that agent is gluing fixedly to be integral, intermediate formation one conical cavity 21.Conical cavity 21 is communicated with infusion channel 22.Manhole 131 is communicated with the infusion channel 22 and 12 of upper shells and lower house, like this, just forms a passage that can circulate medicinal liquid between lower house 1 and the upper shell 2.
Characteristics of the present invention are: described latex balloon 3 and spring 4 are installed in the conical cavity 21, spring 4 bottoms are fixed on the supporting clapboard 13 of lower house 1, the top connects supports the latex balloon 3 that is positioned at conical cavity 21 tops, and latex balloon 3 shutoff are below infusion channel 22 outlets of upper shell.
Described lower house 1 supporting clapboard 13 is circular, and several manholes 131 evenly distribute on it.Manhole 131 is communicated with infusion channel 22 and the infusion channel 12 of upper shell and lower house.
Described lower house 1 supporting clapboard 13 centers are provided with a projection 132 that is fixed with spring 4 bottoms.
Described lower house 1 is provided with tapped female Luer 11.Female Luer 11 communicates with the infusion channel 12 of lower house, be used for to connect the normal component in transfusion downstream, such as the remaining needle joint etc.
Described upper shell 2 is provided with the pipe joint with infusion channel 22.Be used for to connect the transfusion device upstream, such as dropping funnel etc.Conical cavity is communicated with the infusion channel of this pipe joint.
When the present invention uses, the normal infusion process, latex balloon 3 overcomes the support of spring 4 under the pressure of top circulating liquid, to bottom offset, open infusion channel 22, and liquid flows to female Luer 11 by upper shell infusion channel 22.When transfusion end or other abnormal condition, the resilient support of spring 4 makes latex balloon 3 get back to original position, blocks the infusion channel 22 of upper shell, and the infusion channel blocking-up like this, has just realized the one-way flow of liquid.
The present invention constructs rationally, and is easy to use, reliable, has the return blood function, improved infusion safety.It is a kind of desirable transfusion one-way valve.The present invention is applicable to be installed on the medical Transfusion device, guarantees the one-way flow of transfusion, blood transfusion.

Claims (5)

1. transfusion one-way valve, it comprises upper shell, lower house, latex balloon, spring, it is characterized in that: described upper shell and lower house are respectively equipped with infusion channel, the lower house upper surface is provided with the supporting clapboard with manhole, lower house and upper shell are gluing fixedly to be integral, intermediate formation one conical cavity, described latex balloon and spring fitting are in conical cavity, the spring bottom is fixed on the supporting clapboard of lower house, apical support is positioned at the latex balloon on conical cavity top, and the latex balloon shutoff is below the infusion channel outlet of upper shell.
2. transfusion one-way valve according to claim 1 is characterized in that: described lower house supporting clapboard is for circular, even several manholes of distribution it on.
3. transfusion one-way valve according to claim 1 is characterized in that: described lower house supporting clapboard center is provided with a projection that is fixed with the spring bottom.
4. transfusion one-way valve according to claim 1, it is characterized in that: described lower house is provided with tapped female Luer.
5. transfusion one-way valve according to claim 1, it is characterized in that: described upper shell is provided with the pipe joint with infusion channel.
CN2012105149827A 2012-12-05 2012-12-05 One-way valve for infusion Pending CN102935256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012105149827A CN102935256A (en) 2012-12-05 2012-12-05 One-way valve for infusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012105149827A CN102935256A (en) 2012-12-05 2012-12-05 One-way valve for infusion

Publications (1)

Publication Number Publication Date
CN102935256A true CN102935256A (en) 2013-02-20

Family

ID=47694199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012105149827A Pending CN102935256A (en) 2012-12-05 2012-12-05 One-way valve for infusion

Country Status (1)

Country Link
CN (1) CN102935256A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104096300A (en) * 2013-04-11 2014-10-15 陈辉 Transfusion automatic protection device
CN104288861A (en) * 2014-10-20 2015-01-21 贾宇东 Two-channel gradient one-way single-flow-direction time-delay inverse resistance device
CN105726043A (en) * 2016-04-13 2016-07-06 浏阳市三力医用科技发展有限公司 Anti-reflux structure of blood sampling needle
CN106620928A (en) * 2016-11-09 2017-05-10 孝感嘉瑞应用科技开发有限公司 Composite-type safety infusion apparatus
WO2018054183A1 (en) * 2016-09-22 2018-03-29 Suzhou Skywell Healthcare Information Co., Ltd. Split micro-valve
US10948106B2 (en) 2016-09-22 2021-03-16 Suzhou Skywell Healthcare Information Co, Ltd Split micro-valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353837A (en) * 1986-03-04 1994-10-11 Deka Products Limited Partnership Quick-disconnect valve
US20020013556A1 (en) * 1996-11-18 2002-01-31 Cote Andrew L. Swabbable luer-activated valve
CN101516419A (en) * 2006-09-18 2009-08-26 爱尔康公司 Automatic stop cock valve
CN101648049A (en) * 2009-09-10 2010-02-17 威海洁瑞医用制品有限公司 Medical forward flow connection device
CN202982926U (en) * 2012-12-05 2013-06-12 山东威高集团医用高分子制品股份有限公司 Transfusion one-way valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353837A (en) * 1986-03-04 1994-10-11 Deka Products Limited Partnership Quick-disconnect valve
US20020013556A1 (en) * 1996-11-18 2002-01-31 Cote Andrew L. Swabbable luer-activated valve
CN101516419A (en) * 2006-09-18 2009-08-26 爱尔康公司 Automatic stop cock valve
CN101648049A (en) * 2009-09-10 2010-02-17 威海洁瑞医用制品有限公司 Medical forward flow connection device
CN202982926U (en) * 2012-12-05 2013-06-12 山东威高集团医用高分子制品股份有限公司 Transfusion one-way valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104096300A (en) * 2013-04-11 2014-10-15 陈辉 Transfusion automatic protection device
CN104288861A (en) * 2014-10-20 2015-01-21 贾宇东 Two-channel gradient one-way single-flow-direction time-delay inverse resistance device
CN105726043A (en) * 2016-04-13 2016-07-06 浏阳市三力医用科技发展有限公司 Anti-reflux structure of blood sampling needle
WO2018054183A1 (en) * 2016-09-22 2018-03-29 Suzhou Skywell Healthcare Information Co., Ltd. Split micro-valve
US10948106B2 (en) 2016-09-22 2021-03-16 Suzhou Skywell Healthcare Information Co, Ltd Split micro-valve
CN106620928A (en) * 2016-11-09 2017-05-10 孝感嘉瑞应用科技开发有限公司 Composite-type safety infusion apparatus

Similar Documents

Publication Publication Date Title
CN102935256A (en) One-way valve for infusion
CN202982926U (en) Transfusion one-way valve
CN203609722U (en) Fluid infusion control device
CN203029703U (en) Drainage tube blood-return-resistant infusion set
CN202198914U (en) Infusion device with automatic closing function
CN202426960U (en) Blood-return-preventing automatic fluid-stopping infusion device
CN202289092U (en) Disposable automatic liquid shut-off infusion set
CN203677668U (en) Disposable infusion set with multilayer blocking structure
CN103785078B (en) Intravenous needle
CN203663183U (en) Novel self-stopping dripping bucket capable of connecting negative pressure conduction device
CN208770538U (en) A kind of multifunctional transfusion connector
CN203154431U (en) Anti-backflow intravenous infusion set
CN203001550U (en) Burette type infusion apparatus with indwelling needle
CN201154152Y (en) Filtration three-way for infusion
CN103611202A (en) Universal type disposable infusion device with liquid stop function
CN201949415U (en) Disposable automatic exhaust infusion apparatus
CN104127940B (en) A kind of connect negative pressure conduction device certainly end dropping funnel
CN201510611U (en) Anti-backflow infusion device
CN201375713Y (en) Novel blood and medical liquid transfusion apparatus
CN201609533U (en) Anti-blood backflow safe infusion apparatus
CN205814777U (en) A kind of transfusion device with only liquid function
CN204932459U (en) A kind of blood return prevention crosses filter infusion apparatus
CN202113406U (en) Blood backstreaming prevention type disposable infusion apparatus
CN204050522U (en) A kind of disposable transfusion device with dual circuit accurate filter
CN200998470Y (en) Venous transfusion device

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130220

C02 Deemed withdrawal of patent application after publication (patent law 2001)