US3878869A - Liquid transfusion pipe for a very small quantity - Google Patents

Liquid transfusion pipe for a very small quantity Download PDF

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Publication number
US3878869A
US3878869A US364259A US36425973A US3878869A US 3878869 A US3878869 A US 3878869A US 364259 A US364259 A US 364259A US 36425973 A US36425973 A US 36425973A US 3878869 A US3878869 A US 3878869A
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US
United States
Prior art keywords
filaments
transfusion pipe
liquid transfusion
tubular member
liquid
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
Application number
US364259A
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English (en)
Inventor
Itsuro Yamanouchi
Tsuyoshi Tsuji
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ATOMU KK
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ATOMU KK
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Publication date
Application filed by ATOMU KK filed Critical ATOMU KK
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Publication of US3878869A publication Critical patent/US3878869A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • F16L55/02763—Throttle passages using an element with multiple tubes
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/08—Tubes; Storage means specially adapted 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • 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
    • A61M5/141—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor with capillaries for restricting fluid flow
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1027—Quick-acting type connectors

Definitions

  • the invention relates to a liquid transfusion pipe for transfusing a small quantity of liquid, and more particularly to a pipe of the kind terminating in connectors and having a capillary passage for controlling the flow rate through a liquid transfusion system adapted to inject Ringers solution or other liquids into the human body.
  • a liquid transfusion pipe for a very small quantity having a capillary passage the cross-sectional area and the length of which can be varied.
  • FIG. l is a longitudinal section of the liquid transfusion pipe according to the invention.
  • FIG. 2 is a cross section, to an enlarged scale, taken along the line II-II shown in FIG. 1,
  • FIG. 3 is a similar cross section of another embodiment
  • FIG. 4 is an elevational view of a liquid transfusion system incorporating the pipe according to the invention.
  • FIG. 5 is a graph illustrating several examples of the relationship between the available head of the liquid transfusion system of FIG. 4 and the liquid transfusion rate.
  • the liquid transfusion pipe is shown as comprising a tubular member generally denoted by l, which includes a number of axially assembled filaments 2 surrounded by a sleeve 3.
  • the tubular member 1 includes a number of capillary passages 4 defined between adjacent filaments 2.
  • the sleeve 3 is moulded from resin so as to firmly encase a number of filaments. 2 surrounded thereby.
  • the filaments 2, which when assembled form capillary passages 4 as mentioned previously, may be formed of synthetic resin such as nylon or polypropylene or of fibre glass.
  • FIG. 3 shows another embodiment of the tubular member having filaments of a shape different from that of the filaments shown in FIG. 2.
  • Each filament of FIG. 3 has axially extending grooves 2a formed therein, which serve as the capillary passages 4.
  • the profile of the filaments is not limited to those illustrated in FIGS. 2 and 3.
  • grooved filaments are used, their apparent diameter is generally greater than the diameter of other shapped filaments.
  • the crosssectional area depends on the thickness of the filaments, the size of any groove formed therein, the number as well disposition of the filaments, and the degree to which the filaments are compressed when they are encased in the sleeve 3.
  • a bundle of filaments 2 may, for example, be coated with moulded resin as they are drawn out of thin nozzles.
  • the tubular member 1 may have a length of I0 cm. and is provided with a pair of connectors 5 and 6 on its opposite ends to permit connection of the tubular member 1 in a liquid transfusion system.
  • One of the connectors comprises a socket 7 while the other connector comprises a plug 8 which is adapted to be in serted into a socket similar to socket 7 of another tubular member permitting thereby connection of a series of tubular members in tandem.
  • the socket 7 is formed with a helical ridge 7a on its inner wall, and the plug 8 is formed on its outer end with a flange 8a which is adapted to engage threadably with the helical ridge 7a of another tubular member.
  • the tubular member 1 and each of the connectors 5 and 6 are assembled by fitting the opposite ends of the tubular member 1 into hollow cylindrical portions 9 and 10 respectively part of connectors 5 and 6, respectively.
  • Each of the connectors 5 and 6 has a path ll or 12 which communicates with the capillary passages formed in the tubular member 1.
  • One of the paths, 1l is formed in and extends through an axially extending guide member 13 which is integrally formed with the socket 5 and centrally located therein.
  • the other path 12 communicates with an axially extending guide bore 14 centrally formed within the plug 8.
  • the guide member 13 and the guide bore 14 are dimensioned to permit interfitting therebetween.
  • a filter l5 is posi tioned in the connector 6 between path 12 and guide bore 14, and advantageously prevents clogging of capillary passages 4.
  • FIG. 4 is a diagrammatic illustration of a liquid transfusion system.
  • the liquid transfusion pipe or the tubular pipe 1 constructed in accordance with the invention is connected between an irrigator 18 and a cannula 19 by way of a pair of rubber tubes 20 and 21.
  • the interconnection takes place by separately preparing connectors similar to those shown at 5 and 6 and inserting their hollow cylindrical portions similar to those shown at 9 and 10 into the respective tubes 20 and 21.
  • the cylindrical portions are formed with wedge-shaped tabs 9a and 10a thereabout.
  • the flow rate therethrough is determined principally by the length of the tubular member 1, the cross-sectional area of its capillary passages, the pressure of the irrigator 18, or the distance between the irrigator and the cannula 19, and the viscosity ofthe liquid to be transfused.
  • FIG. graphically shows the experimental results in terms of the relationship between the flow rate and the distance between thc irrigator and cannula.
  • the tubular members 1 had a length of cm and substantially similar cross-sectional arca of the capillary passages 4.
  • the curve 4 represents the result obtained with a pair of the transfusion pipes used in plotting the curves 1 to 3, the pair of pipes being connected in parallel.
  • distilled water was used, for curve 2 ringer lactate and for curve 3 l0 percent glucose.
  • a varying flow rate can be obtained using a liquid transfusion pipe having a fixed cross-sectional area for the capillary passages 4, by varying the length of the tube l or by varying the height of the irrigator 18.
  • the use of a liquid transfusion pipe having different cross-sectional areas for the capillary passages 4 permits even greater control ofthe flow rate. It will be apparent from the foregoing that the use of a liquid transfusion pipe according to the invention assures a steady state flow rate and maintains liquid pressure transfused in the cannula 19 constant, thereby avoiding possibility of coagulation which may occur due to reverse flow through the cannula.
  • a liquid transfusion pipe for transfusing a small quantity of liquid and comprising an elongate tubular member having an axially extending capillary passage therein, and a pair of connectors, one at one end of the tubular member and the other at the opposite end of the tubular member, said one of said pair of connectors comprising a socket having a helical ridge on its inner wall and said other of said pair of connectors comprising a plug having a flange, said helical ridge and said flange being adapted for respective engagement with a flange and a helical ridge ofa like plug and a like socket provided on separate connecting lines.
  • a liquid transfusion pipe in which the tubular member contains a plurality of filaments between which are defined a plurality of capillary passages, an elongate sleeve encasing the filaments.
  • a liquid transfusion pipe in which the filaments have axially extending grooves formed in their outer periphery, said capillary passages being defined between said filaments in spaces provided by the grooves.
  • a liquid transfusion pipe according to claim 2 in which the sleeve comprises resin moulded around the assembled filaments.
  • each of the connectors has a space which cornmunicates with the capillary passages of the tubular

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vascular Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
US364259A 1972-05-29 1973-05-29 Liquid transfusion pipe for a very small quantity Expired - Lifetime US3878869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47053223A JPS5225678B2 (enrdf_load_stackoverflow) 1972-05-29 1972-05-29

Publications (1)

Publication Number Publication Date
US3878869A true US3878869A (en) 1975-04-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
US364259A Expired - Lifetime US3878869A (en) 1972-05-29 1973-05-29 Liquid transfusion pipe for a very small quantity

Country Status (2)

Country Link
US (1) US3878869A (enrdf_load_stackoverflow)
JP (1) JPS5225678B2 (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320113A1 (fr) * 1975-08-07 1977-03-04 Baxter Laboratories Inc Appareil d'injection de solution intraveineuse comportant un element de diametre interne retreci
FR2333521A1 (fr) * 1975-12-03 1977-07-01 Burron Medical Prod Inc Dispositif d'administration d'un liquide par voie parenterale
FR2395758A2 (fr) * 1975-08-07 1979-01-26 Baxter Travenol Lab Appareil d'injection de solution intraveineuse comportant un element de diametre interne retreci
US4146028A (en) * 1977-03-29 1979-03-27 Burron Medical Products, Inc. Intravenous system having an accumulator tube therein
US4621989A (en) * 1979-07-28 1986-11-11 Herwig Burgert Support disc for pump diaphragm
US4781698A (en) * 1987-04-09 1988-11-01 Parren Mark L Selectable drop size infusion metering device
WO1989001065A1 (en) * 1987-07-25 1989-02-09 Gebrüder Schmeing Gmbh & Co. Kg Device for preventing the deposit of fly fibre
US4892524A (en) * 1987-10-30 1990-01-09 Gordon Smith Intravenous administration system
WO1996002289A1 (en) * 1994-07-19 1996-02-01 Abbott Laboratories Anti-squirting orifice flow control device
WO1996020744A1 (de) * 1995-01-07 1996-07-11 Volker Lang Mikroinfusionssystem
US6013184A (en) * 1995-09-19 2000-01-11 Asahi Medical Co., Ltd. Device for depletion of leukocytes
US20030054300A1 (en) * 2001-09-15 2003-03-20 Castaldi Marco J. Apparatus having similar interstitial passages
JP2004344547A (ja) * 2003-05-26 2004-12-09 Top:Kk 継ぎ手装置
US20060070669A1 (en) * 2002-09-19 2006-04-06 I-Flow Device for selectively regulating the flow rate of a fluid
US20090314352A1 (en) * 2008-06-19 2009-12-24 Hyun Dongchul D Variable flow rate controller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235892U (enrdf_load_stackoverflow) * 1975-09-04 1977-03-14

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165564A (en) * 1912-12-19 1915-12-28 Schaeffer & Budenberg Mfg Co Thermometer.
US3078878A (en) * 1959-05-25 1963-02-26 Penn Controls Capillary element
US3250469A (en) * 1963-08-05 1966-05-10 Bowles Eng Corp Pure fluid function generating system
US3529632A (en) * 1968-11-21 1970-09-22 Moore & Co Samuel Composite tubing
US3630229A (en) * 1970-04-09 1971-12-28 Us Navy Quiet fluid flow regulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165564A (en) * 1912-12-19 1915-12-28 Schaeffer & Budenberg Mfg Co Thermometer.
US3078878A (en) * 1959-05-25 1963-02-26 Penn Controls Capillary element
US3250469A (en) * 1963-08-05 1966-05-10 Bowles Eng Corp Pure fluid function generating system
US3529632A (en) * 1968-11-21 1970-09-22 Moore & Co Samuel Composite tubing
US3630229A (en) * 1970-04-09 1971-12-28 Us Navy Quiet fluid flow regulator

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320113A1 (fr) * 1975-08-07 1977-03-04 Baxter Laboratories Inc Appareil d'injection de solution intraveineuse comportant un element de diametre interne retreci
US4034754A (en) * 1975-08-07 1977-07-12 Baxter Travenol Laboratories, Inc. Intravenous solution set having a constricted inner diameter portion
US4105029A (en) * 1975-08-07 1978-08-08 Baxter Travenol Laboratories, Inc. Intravenous solution set having an air access site and constricted inner diameter portion
FR2395758A2 (fr) * 1975-08-07 1979-01-26 Baxter Travenol Lab Appareil d'injection de solution intraveineuse comportant un element de diametre interne retreci
FR2333521A1 (fr) * 1975-12-03 1977-07-01 Burron Medical Prod Inc Dispositif d'administration d'un liquide par voie parenterale
US4037596A (en) * 1975-12-03 1977-07-26 Burron Medical Products, Inc. Parenteral administration set with internal valve and flow restrictor
US4146028A (en) * 1977-03-29 1979-03-27 Burron Medical Products, Inc. Intravenous system having an accumulator tube therein
US4621989A (en) * 1979-07-28 1986-11-11 Herwig Burgert Support disc for pump diaphragm
US4781698A (en) * 1987-04-09 1988-11-01 Parren Mark L Selectable drop size infusion metering device
WO1989001065A1 (en) * 1987-07-25 1989-02-09 Gebrüder Schmeing Gmbh & Co. Kg Device for preventing the deposit of fly fibre
US5081737A (en) * 1987-07-25 1992-01-21 Gebruder Schmeing Gmbh & Co. Apparatus for eliminating deposits of floating fibers
US4892524A (en) * 1987-10-30 1990-01-09 Gordon Smith Intravenous administration system
WO1996002289A1 (en) * 1994-07-19 1996-02-01 Abbott Laboratories Anti-squirting orifice flow control device
WO1996020744A1 (de) * 1995-01-07 1996-07-11 Volker Lang Mikroinfusionssystem
US6013184A (en) * 1995-09-19 2000-01-11 Asahi Medical Co., Ltd. Device for depletion of leukocytes
US20030054300A1 (en) * 2001-09-15 2003-03-20 Castaldi Marco J. Apparatus having similar interstitial passages
US20060070669A1 (en) * 2002-09-19 2006-04-06 I-Flow Device for selectively regulating the flow rate of a fluid
US7455072B2 (en) * 2002-09-19 2008-11-25 I-Flow Corporation Device for selectively regulating the flow rate of a fluid
US20090099504A1 (en) * 2002-09-19 2009-04-16 Eric Mabry Device for selectively regulating the flow rate of a fluid
US7661440B2 (en) * 2002-09-19 2010-02-16 I-Flow Corporation Device for selectively regulating the flow rate of a fluid
JP2004344547A (ja) * 2003-05-26 2004-12-09 Top:Kk 継ぎ手装置
US20090314352A1 (en) * 2008-06-19 2009-12-24 Hyun Dongchul D Variable flow rate controller
US8118061B2 (en) 2008-06-19 2012-02-21 Acacia, Inc. Variable flow rate controller
US8403004B2 (en) 2008-06-19 2013-03-26 Medical Product Specialists Variable flow rate controller

Also Published As

Publication number Publication date
JPS4910587A (enrdf_load_stackoverflow) 1974-01-30
JPS5225678B2 (enrdf_load_stackoverflow) 1977-07-08

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