CN104338199A - Blood return preventing infusion device - Google Patents

Blood return preventing infusion device Download PDF

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Publication number
CN104338199A
CN104338199A CN201410659968.5A CN201410659968A CN104338199A CN 104338199 A CN104338199 A CN 104338199A CN 201410659968 A CN201410659968 A CN 201410659968A CN 104338199 A CN104338199 A CN 104338199A
Authority
CN
China
Prior art keywords
blood return
hydrophilic
infusion device
return preventing
preventing infusion
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
CN201410659968.5A
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Chinese (zh)
Inventor
何前国
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201410659968.5A priority Critical patent/CN104338199A/en
Publication of CN104338199A publication Critical patent/CN104338199A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • A61M5/36—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
    • A61M5/40—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 low-level float-valve to cut off media flow from reservoir
    • 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
    • A61M2005/1401—Functional features
    • A61M2005/1406—Minimizing backflow along the delivery catheter track

Abstract

The invention provides a blood return preventing infusion device. The blood return preventing infusion device comprises a dripping bucket, wherein a floating body is arranged in the dripping bucket; an opening space is formed above the floating body; a through hole is formed in the side surface of the opening space; a hydrophilic and non-aerophilic film is arranged below the opening space, or a supporting piece is arranged below the floating body and comprises a supporting rod and a lower supporting hole ring; the hydrophilic and non-aerophilic film is arranged on the lower supporting hole ring below the supporting piece. The blood return preventing infusion device has the advantages that the structure is simple; blood return can be prevented; the backflow time can be accurately controlled; due to the fact that the hydrophilic and non-aerophilic film is arranged on the floating body, a great amount of infusion liquid flows out and passes through an outlet of the dripping bucket, and only a small amount of residual liquid is output from the hydrophilic and non-aerophilic film, so that the hydrophilic and non-aerophilic film cannot be blocked, the residual liquid smoothly flows out, and the flow is accurate.

Description

Blood return preventing infusion device
Technical field
The present invention relates to technical field of medical instruments, particularly a kind of blood return preventing infusion device.
Background technology
Present transfusion device is various in style, and the applying for a patent of blood return prevention also has multiple, but these application structure of patents are complicated, blood return prevention weak effect, the basic object that just cannot reach blood return prevention had.Apply for a patent micropore blood returning preventing infusion (patent No.: 201110126833.9) be exactly one of them, if its closing membrane is thin, because periphery does not have stressed, thin film cannot be shaped; If can be shaped just have certain thickness, because technique and structure limit, two rigid faces can not positive confinements dead, institute's residual liquid will soon flow, and does not reach slow release and prevents the blood back of certain hour.
Useful hydrophilic film reaches slow release effect in addition, can not reach good effect.Because fixing hydrophilic film is in longer flow liquid or the larger flow liquid of concentration, fenestra easily blocks; If when next bottle continues transfusion again, transfusion is just not smooth, and flow velocity produces difficulty, also has certain difficulty like this to slow release blood return prevention.
Summary of the invention
The object of the invention is development one can flow smooth and easy, and structure is simple, carries out the blood return preventing infusion device closed by hydrophilic film.
Blood return preventing infusion device of the present invention, comprise dropping funnel, buoyancy aid is provided with in dropping funnel, open space is provided with above described buoyancy aid, the side of open space has through hole, the below of open space is provided with below hydrophilic not close air film or buoyancy aid a support member, and described support member comprises support bar and lower support orifice ring, the lower support orifice ring below support member is provided with hydrophilic not close air film.
Further, the lower limb of described hydrophilic not close air film is provided with locating ring, and the height of locating ring is less than the height of outlet boss below dropping funnel, and external diameter is greater than the external diameter of dropping funnel outlet boss.
Further, the top of described buoyancy aid is provided with positioning bar.
Further, be provided with buoyancy aid lifting height intercept layer in described dropping funnel, described dropping funnel outlet is provided with a boss hole, and the height of boss hole is 4-8mm.
Further, the height of described locating ring is 3-6mm, and the inwall of locating ring is inclined-plane.
Further, the height of described through hole and hydrophilic not close air film is 3-5mm.
The advantage of blood return preventing infusion device of the present invention is that structure is simple, can anti-return blood, the time of refluxing can be controlled exactly, because hydrophilic not close air film is arranged on buoyancy aid, a large amount of transfusion is flowed out through dropping funnel outlet, only has a small amount of residual liquid to be exported, so hydrophilic not close air film can not block by hydrophilic not close air film, residual liquid flows out unobstructed, and flow is accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of blood return preventing infusion device of the present invention.
Fig. 2 is the structural representation of buoyancy aid in blood return preventing infusion device of the present invention.
Fig. 3 is the top view of buoyancy aid in blood return preventing infusion device of the present invention.
Fig. 4 is another structural representation of buoyancy aid in blood return preventing infusion device of the present invention.
Fig. 5 is the upward view of the support member in another structure of buoyancy aid in blood return preventing infusion device of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As Figure 1-Figure 5, the invention provides a kind of blood return preventing infusion device, comprise dropping funnel 1, buoyancy aid 2 is provided with in dropping funnel 1, be provided with open space above buoyancy aid 2, the side of open space have through hole 3, the below of open space is provided with below hydrophilic not close air film 5 or buoyancy aid 2 support member, support member comprises support bar 6 and lower support orifice ring 7, the lower support orifice ring 7 below support member is provided with hydrophilic not close air film 5.
Further, the lower limb of hydrophilic not close air film 5 is provided with locating ring 4, and the height of locating ring 4 is less than the height of outlet boss below dropping funnel 1, and external diameter is greater than the external diameter of dropping funnel 1 outlet boss.
Further, the top of buoyancy aid 2 is provided with positioning bar 9.
Further, be provided with buoyancy aid lifting height intercept layer 8 in dropping funnel 1, dropping funnel 1 outlet is provided with a boss hole, and the height of boss hole is 4-8mm.
Further, the height of locating ring 4 is 3-6mm, and the inwall of locating ring 4 is inclined-plane.
Further, the height of through hole 3 and hydrophilic not close air film is 3-5mm.
Blood return preventing infusion device of the present invention is achieved in that and first infuses to patient according to present infusion method.When infusing a certain amount of, buoy declines under gravity, hydrophilic not close air film shuts dropping funnel outlet, the residual liquid stayed is according to the Kong Su slowly slow release of hydrophilic not close air film, such transfusion is step-by-step to be carried out, therefore transfusion device can not blood back, until the residual liquid above hydrophilic not close air film is totally lost, air also can not carry out, certain residual liquid is also had to close dead locating ring periphery, air in dropping funnel also can not flow into, even if there is a small amount of residual liquid to flow into along sealing surface, also only have and close upper residual liquid inflow, residual liquid under sealing surface can not flow into, residual liquid under sealing surface shuts closed-loop all the time.

Claims (6)

1. a blood return preventing infusion device, it is characterized in that: comprise dropping funnel, buoyancy aid is provided with in dropping funnel, open space is provided with above described buoyancy aid, the side of open space has through hole, the below of open space is provided with below hydrophilic not close air film or buoyancy aid a support member, and described support member comprises support bar and lower support orifice ring, the lower support orifice ring below support member is provided with hydrophilic not close air film.
2. a kind of blood return preventing infusion device according to claim 1, is characterized in that: the lower limb of described hydrophilic not close air film is provided with locating ring, and the height of locating ring is less than the height of outlet boss below dropping funnel, and external diameter is greater than the external diameter of dropping funnel outlet boss.
3. a kind of blood return preventing infusion device according to claim 1, is characterized in that: the top of described buoyancy aid is provided with positioning bar.
4. a kind of blood return preventing infusion device according to claim 1, is characterized in that: be provided with buoyancy aid lifting height intercept layer in described dropping funnel, and described dropping funnel outlet is provided with a boss hole, and the height of boss hole is 4-8mm.
5. a kind of blood return preventing infusion device according to claim 2, is characterized in that: the height of described locating ring is 3-6mm, and the inwall of locating ring is inclined-plane.
6. a kind of blood return preventing infusion device according to claim 1, is characterized in that: the height of described through hole and hydrophilic not close air film is 3-5mm.
CN201410659968.5A 2014-11-19 2014-11-19 Blood return preventing infusion device Pending CN104338199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410659968.5A CN104338199A (en) 2014-11-19 2014-11-19 Blood return preventing infusion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410659968.5A CN104338199A (en) 2014-11-19 2014-11-19 Blood return preventing infusion device

Publications (1)

Publication Number Publication Date
CN104338199A true CN104338199A (en) 2015-02-11

Family

ID=52495177

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410659968.5A Pending CN104338199A (en) 2014-11-19 2014-11-19 Blood return preventing infusion device

Country Status (1)

Country Link
CN (1) CN104338199A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104689419A (en) * 2015-02-12 2015-06-10 武汉博硕聚才科技有限公司 Method for preparing closed soft bag for floating body of infusion apparatus and anti-blood return infusion apparatus
CN105056333A (en) * 2015-08-31 2015-11-18 李静 Dripping bucket assembly of full-lucifuge infusion apparatus
CN107982604A (en) * 2017-12-08 2018-05-04 佛山市海科云筹信息技术有限公司 Infusion device

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740811A1 (en) * 1976-09-14 1978-03-16 Sheldon S Zelitt Gravity actuated intravenous infusion appts. - has flow control valve formed by float chamber with float activated by liquid dripping from dripping chamber
WO2007108646A1 (en) * 2006-05-24 2007-09-27 Seung-Hwan Heo Device for protecting backward flowing in infusion solution delivering set
CN201001886Y (en) * 2006-11-19 2008-01-09 刘泽木 Safety automatic device for disposable transfusion device
CN102188765A (en) * 2010-03-04 2011-09-21 廖首猜 Infusion and transfusion fixed safety device
CN202173641U (en) * 2011-08-01 2012-03-28 周一臣 Transfusion device with an automatic transfusion-stop, blood backflow prevention and filter structure
CN102626532A (en) * 2012-04-10 2012-08-08 上海金塔医用器材有限公司 Slow flow device for disposable transfusion set
CN102631733A (en) * 2012-05-10 2012-08-15 浙江康泰医疗器械有限公司 Automatic exhaust and liquid stop and anti-blood backflow high-speed precision intelligent security infusion set
CN102772835A (en) * 2011-05-08 2012-11-14 谢世庚 Microporous anti-backflow transfusion apparatus
CN202605452U (en) * 2012-04-23 2012-12-19 江西洪达医疗器械集团有限公司 Automatic exhausting and liquid-stopping transfusion set
CN202920734U (en) * 2012-10-16 2013-05-08 郑万章 Check valve and transfusion drip device with the same
CN203090118U (en) * 2012-11-13 2013-07-31 卢金成 Safety transfusion control valve and transfusion device with same
CN203208466U (en) * 2012-11-23 2013-09-25 广州永创生物科技有限公司 An infusion set with double-layer filtering, bidirectional automatic air exhausting, automatic liquid checking and blood return preventing functions
CN103830795A (en) * 2012-11-22 2014-06-04 邹浩然 Disposable automatic liquid stopping infusion set
CN204307140U (en) * 2014-11-19 2015-05-06 何前国 Blood return preventing infusion device

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740811A1 (en) * 1976-09-14 1978-03-16 Sheldon S Zelitt Gravity actuated intravenous infusion appts. - has flow control valve formed by float chamber with float activated by liquid dripping from dripping chamber
WO2007108646A1 (en) * 2006-05-24 2007-09-27 Seung-Hwan Heo Device for protecting backward flowing in infusion solution delivering set
CN201001886Y (en) * 2006-11-19 2008-01-09 刘泽木 Safety automatic device for disposable transfusion device
CN102188765A (en) * 2010-03-04 2011-09-21 廖首猜 Infusion and transfusion fixed safety device
CN102772835A (en) * 2011-05-08 2012-11-14 谢世庚 Microporous anti-backflow transfusion apparatus
CN202173641U (en) * 2011-08-01 2012-03-28 周一臣 Transfusion device with an automatic transfusion-stop, blood backflow prevention and filter structure
CN102626532A (en) * 2012-04-10 2012-08-08 上海金塔医用器材有限公司 Slow flow device for disposable transfusion set
CN202605452U (en) * 2012-04-23 2012-12-19 江西洪达医疗器械集团有限公司 Automatic exhausting and liquid-stopping transfusion set
CN102631733A (en) * 2012-05-10 2012-08-15 浙江康泰医疗器械有限公司 Automatic exhaust and liquid stop and anti-blood backflow high-speed precision intelligent security infusion set
CN202920734U (en) * 2012-10-16 2013-05-08 郑万章 Check valve and transfusion drip device with the same
CN203090118U (en) * 2012-11-13 2013-07-31 卢金成 Safety transfusion control valve and transfusion device with same
CN103830795A (en) * 2012-11-22 2014-06-04 邹浩然 Disposable automatic liquid stopping infusion set
CN203208466U (en) * 2012-11-23 2013-09-25 广州永创生物科技有限公司 An infusion set with double-layer filtering, bidirectional automatic air exhausting, automatic liquid checking and blood return preventing functions
CN204307140U (en) * 2014-11-19 2015-05-06 何前国 Blood return preventing infusion device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104689419A (en) * 2015-02-12 2015-06-10 武汉博硕聚才科技有限公司 Method for preparing closed soft bag for floating body of infusion apparatus and anti-blood return infusion apparatus
CN105056333A (en) * 2015-08-31 2015-11-18 李静 Dripping bucket assembly of full-lucifuge infusion apparatus
CN107982604A (en) * 2017-12-08 2018-05-04 佛山市海科云筹信息技术有限公司 Infusion device

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Application publication date: 20150211

RJ01 Rejection of invention patent application after publication