GB2260388A - Automatic cut-off for intravenous device - Google Patents

Automatic cut-off for intravenous device Download PDF

Info

Publication number
GB2260388A
GB2260388A GB9121307A GB9121307A GB2260388A GB 2260388 A GB2260388 A GB 2260388A GB 9121307 A GB9121307 A GB 9121307A GB 9121307 A GB9121307 A GB 9121307A GB 2260388 A GB2260388 A GB 2260388A
Authority
GB
United Kingdom
Prior art keywords
fluid
ball float
outlet
fluid reservoir
dripping
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.)
Withdrawn
Application number
GB9121307A
Other versions
GB9121307D0 (en
Inventor
Long Hsiung Chen
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 GB9121307A priority Critical patent/GB2260388A/en
Priority to CA002053324A priority patent/CA2053324A1/en
Priority to NL9101708A priority patent/NL9101708A/en
Priority to FR9112910A priority patent/FR2682601A3/en
Priority to CH3150/91A priority patent/CH683500A5/en
Publication of GB9121307D0 publication Critical patent/GB9121307D0/en
Publication of GB2260388A publication Critical patent/GB2260388A/en
Withdrawn legal-status Critical Current

Links

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
    • A61M5/36—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

Abstract

An intravenous device has an automatic cut-off valve in which a hollow ball float 3 is installed in a fluid reservoir 2; as the fluid in the fluid reservoir is drained away, the ball float will be lowered to an outlet 201 at the bottom of the fluid reservoir automatically closing the outlet as a result of the attractive force of the fluid; a given amount of fluid will then be left in a fluid hose 4 to prevent blood from flowing into the fluid hose, such a feature can facilitate refilling fluid for the next injection operation. <IMAGE>

Description

IR" 1::
03 13 A Dripping Set With An Automatic Closing Ball Float This invention relates to a dripping set.particularly, it use a ball float to close the outlet of the fluid.
Usually, a doctor often might, if necessary, administer a dripping intravenous injection to a patient; a conventional dripping set is shown in FIG.1, whereby a nutritious or medicine fluid can be injected into a patient's blood vessel for cure or recovery purpose; however, a dripping injection takes a longer time; for example, it may take several hours or more. During a dripping injection, a nurse has to stay a patient; unfortunately, a patient or nurse is susceptible not to watch the dripping set closely; for example, a nurse might forget to take care the dripping set when the fluid therein has been drained away. Such a case is particularly easy to happen during night time because of the patient or nurse being easy to fall into sleep. Such a negligence will cause a fluid in the fluid reservoir to be drained away to result a patient's blood to flow back into the injection needle to blockade the needle hole. In that case, the fluid hose and the needle have to be removed to prepare a new dripping injection, and a considerable inconvenience to the patient and nurse would be resulted.
This invention relates to a dripping set with an 1 automatic closing ball float. The prime feature of the present invention is that a hollow ball float is installed in the fluid reservoir of the dripping set; the ball float can automatically close the outlet of the fluid reservoir upon the fluid therein being drained away; in that case, a given amount of fluid is left in the fluid hose to present a patient's blood from flowing back.
An embodiment of this invention is described by way example with reference to the drawings, in which:
FIG.1 is a front view of a conventional dripping set.
FIg.2 is a fragmental sectional view of an embodiment of a dripping set according to the present invention.
FIG.3 is a fragmental sectional view of the present invention, showing the set being closed.
Referring to FIGs.2 and 3, the em-bodiment according to the present invention comprises a drop bottle 1, a fluid reservoir 2, a hollow ball float 3, a fluid hose 4, a manual regulation switch 5, and an injection needle 6. A fluid in the drop bottle 1 can flow through the fluid reservoir 2, an outlet 201, the fluid hose 4, the manual regulation switch 5 and the injection needle 6, from which a fluid can install into a person's vein. The main feature of the present invention is that a rubber hollow ball float 3 is movably installed in the fluid reservoir 2 but above the upper end of 2 1 I-TT7,1 the fluid hose 4. The hollow ball float 3 is normally floating on the surface of the fluid in the fluid reservoir 2, if there is a fluid therein. Whenever the fluid is drained away completely, the ball float 3 will drop downwards until closing the outlet 201 automatically as a result of a attractive force of the fluid (as shown in FIG.3); in that case, a small part of fluid will be left in the fluid hose 4 to prevent the blood from flowing into the injection needle 6 to blockade the needle hole. As soon as the drop bottle 1 is refilled with fluid, the hollow ball float 3 will be floated up on the fluid reservoir 2 being filled with fluid, and the outlet 201 will be opened again to let the fluid flow through the outlet 201 and the fluid hose 4 to complete the normal flowing and automatically closing functions of the dripping set.
1 3

Claims (1)

  1. A dripping set with an automatic closing ball float characterized in that a hollow ball float is installed in a fluid reservoir, and said ball float able to automatically close an outlet at lower end of said fluid reservoir whenever a fluid level in said fluid reservoir being reduced nearing said outlet.
    4
GB9121307A 1991-10-08 1991-10-08 Automatic cut-off for intravenous device Withdrawn GB2260388A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB9121307A GB2260388A (en) 1991-10-08 1991-10-08 Automatic cut-off for intravenous device
CA002053324A CA2053324A1 (en) 1991-10-08 1991-10-11 Dripping set with an automatic closing ball float
NL9101708A NL9101708A (en) 1991-10-08 1991-10-14 DROPPING DEVICE WITH AN AUTOMATICALLY CLOSING BALL FLOAT.
FR9112910A FR2682601A3 (en) 1991-10-08 1991-10-18 Drip assembly with automatic closure
CH3150/91A CH683500A5 (en) 1991-10-08 1991-10-28 Drip arrangement with an automatically closing spherical float.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9121307A GB2260388A (en) 1991-10-08 1991-10-08 Automatic cut-off for intravenous device
CH3150/91A CH683500A5 (en) 1991-10-08 1991-10-28 Drip arrangement with an automatically closing spherical float.

Publications (2)

Publication Number Publication Date
GB9121307D0 GB9121307D0 (en) 1991-11-20
GB2260388A true GB2260388A (en) 1993-04-14

Family

ID=25692315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9121307A Withdrawn GB2260388A (en) 1991-10-08 1991-10-08 Automatic cut-off for intravenous device

Country Status (5)

Country Link
CA (1) CA2053324A1 (en)
CH (1) CH683500A5 (en)
FR (1) FR2682601A3 (en)
GB (1) GB2260388A (en)
NL (1) NL9101708A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999025422A1 (en) * 1997-11-14 1999-05-27 Athos Armellini A device with a floating valve for preventing the air inlet in droppers for intravenous infusion
WO2000040283A1 (en) * 1998-10-23 2000-07-13 Claudia De Oliveira Pereira Serum conductor with air-interruption valve
CN101579549B (en) * 2009-02-08 2011-06-15 戎静华 Infusion apparatus capable of preventing blood returning
CN104941022A (en) * 2015-06-19 2015-09-30 夏瑾梅 Novel anti-reverse flow precise infusion apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111451016A (en) * 2019-01-22 2020-07-28 重庆灵徽科技有限公司 Novel spraying equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656505A (en) * 1970-05-06 1972-04-18 Ellen M O Brian Automatic cut-off for intravenous equipment
GB1568414A (en) * 1976-07-02 1980-05-29 Becker K Automatic intravenous flow regulator
US4606365A (en) * 1985-07-02 1986-08-19 Siposs George G Buoyant blood stop valve
GB2178135A (en) * 1985-07-25 1987-02-04 Cheng Kuo Fang A controlling device for an intravenous feeding or medicating device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656505A (en) * 1970-05-06 1972-04-18 Ellen M O Brian Automatic cut-off for intravenous equipment
GB1568414A (en) * 1976-07-02 1980-05-29 Becker K Automatic intravenous flow regulator
US4606365A (en) * 1985-07-02 1986-08-19 Siposs George G Buoyant blood stop valve
GB2178135A (en) * 1985-07-25 1987-02-04 Cheng Kuo Fang A controlling device for an intravenous feeding or medicating device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999025422A1 (en) * 1997-11-14 1999-05-27 Athos Armellini A device with a floating valve for preventing the air inlet in droppers for intravenous infusion
WO2000040283A1 (en) * 1998-10-23 2000-07-13 Claudia De Oliveira Pereira Serum conductor with air-interruption valve
CN101579549B (en) * 2009-02-08 2011-06-15 戎静华 Infusion apparatus capable of preventing blood returning
CN104941022A (en) * 2015-06-19 2015-09-30 夏瑾梅 Novel anti-reverse flow precise infusion apparatus

Also Published As

Publication number Publication date
CA2053324A1 (en) 1993-04-12
NL9101708A (en) 1993-05-03
FR2682601A3 (en) 1993-04-23
CH683500A5 (en) 1994-03-31
GB9121307D0 (en) 1991-11-20

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)