WO2001021232A1 - Dispositif permettant de raccorder des appareils et des installations a des conduites pour liquides - Google Patents

Dispositif permettant de raccorder des appareils et des installations a des conduites pour liquides Download PDF

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Publication number
WO2001021232A1
WO2001021232A1 PCT/DE2000/003215 DE0003215W WO0121232A1 WO 2001021232 A1 WO2001021232 A1 WO 2001021232A1 DE 0003215 W DE0003215 W DE 0003215W WO 0121232 A1 WO0121232 A1 WO 0121232A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
tubular section
wall
holes
liquid line
Prior art date
Application number
PCT/DE2000/003215
Other languages
German (de)
English (en)
Inventor
Hans Kurina
Paul Kaupa
Original Assignee
Gml Kfh Gesellschaft Für Medizintechnik Und Logistik Mbh
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
Priority claimed from DE19945496A external-priority patent/DE19945496C2/de
Application filed by Gml Kfh Gesellschaft Für Medizintechnik Und Logistik Mbh filed Critical Gml Kfh Gesellschaft Für Medizintechnik Und Logistik Mbh
Priority to AU13797/01A priority Critical patent/AU1379701A/en
Publication of WO2001021232A1 publication Critical patent/WO2001021232A1/fr

Links

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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/02—Branch units, e.g. made in one piece, welded, riveted
    • F16L41/021—T- or cross-pieces
    • 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
    • A61M39/12—Tube connectors; Tube couplings for joining a flexible tube to a rigid attachment
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/16—Screw-threaded joints
    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1654—Dialysates therefor
    • A61M1/1656—Apparatus for preparing dialysates
    • 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
    • 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
    • A61M2039/1033—Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
    • 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
    • A61M39/02—Access sites

Definitions

  • the invention relates to a device for connecting devices and systems to liquid lines according to the preamble of claim 1.
  • the lines can be filled, for example, with treated water, liquid foods, medicines or medical products, without the invention being limited to this.
  • connections made of plastic or stainless steel are generally used, which are not matched to the diameter of the line.
  • T-connectors are mostly used for the connection to the cables, the middle parts of which are not matched with the threaded part of a connecting nipple with regard to the connection length. This leads to the formation of dead spaces in the T connections, where deposits can form.
  • Organic deposits such as bacteria and their excretion product, endotoxins, if flushed into the pipeline or connected devices and systems, can render manufactured products unusable or endanger them when connecting devices for the treatment of patients.
  • the object of the present invention is to design a connection device of the type under consideration so that the formation of organic and inorganic deposits in its area is largely avoided.
  • the connecting device has a connecting nipple, which remains in the installed position outside the liquid line, and a tubular section penetrating a bore through the wall of the liquid line, of which at least the end region is arranged within the liquid line, and that the end region of the Wall of the tubular section is provided with holes.
  • This configuration ensures that the part of the tubular section protruding into the liquid line is wound around and through the liquid in such a way that a dead space-free connection of the devices and systems to the line is ensured.
  • the bores which ensure rewinding reliably prevent organic and inorganic deposits from forming.
  • the holes be formed so as to be distributed uniformly over the circumference of the tubular section, these holes preferably having a circular shape. There are preferably approximately 4 to 8 holes, the space between the holes being approximately the same as their diameter. However, the invention is not limited to this, but smaller holes can also be provided in larger numbers and, for example, more than one circumferential row of holes.
  • the tubular section of the connection device is expediently provided with an external thread so that it can be screwed into the bore of the liquid line.
  • the invention is not limited to this, for example the tubular section can also be inserted through the wall of the liquid line and sealed in a suitable manner. However, a screw connection is preferred.
  • the external thread expediently extends up to the perforated end section, which should have a smooth outer wall, in order to exclude the formation of deposits on the wall.
  • the connecting device between the connecting nipple and the tubular section has an annular disk which can be tightened to the outer wall of the liquid line.
  • the connection device is a self-sealing coupling, which is ideally suited, for example, for dialysis machines.
  • Any constellation can be achieved by varying the shape of the connection nipple.
  • Fig. 1 is a side view of a connection device according to the invention
  • Fig. 2 is a perspective view of the connection device
  • Fig. 3 is a plan view of a portion of a liquid line with a built-in connector
  • Fig. 4 is an end view of the arrangement according to Fig. 3.
  • the connecting device 1 is formed in one piece and contains a connecting nipple 2, an annular disk 3 extending at right angles thereto and a subsequent tubular section 4 which has a considerably larger diameter than the connecting nipple 2nd
  • the annular disc is provided with four holes 5 (FIG. 3), which are evenly distributed over the circumference and through which screws for fastening the connecting device to an approximately cube-shaped intermediate piece 6 of a liquid line 7 can pass.
  • the tubular section 4 contains an external thread 8 which extends from the annular disk 3 to an end region 9 of the tubular section 4, the wall of which contains holes 10 which are distributed evenly over the circumference.
  • the perforated end section 9 of the tubular section 4 is located within the liquid line 7.
  • the holes or bores 10 ensure that the part of the connection device protruding into the liquid line 7 is washed around or is flushed through, thereby preventing organic or inorganic deposits from forming in this area.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

La présente invention concerne un dispositif permettant de raccorder des appareils et des installations à des conduites pour liquides. Ce dispositif comprend un raccord fileté (2), qui reste à l'extérieur de la conduite pour liquides, et une partie tubulaire (4), qui fait saillie à l'intérieur de la conduite pour liquides et est connectée audit raccord fileté. La zone d'extrémité de la paroi de la partie tubulaire est pourvue de trous (10), de façon que la partie de la partie tubulaire qui fait saillie dans la conduite pour liquides est toujours baignée et traversée par le liquide, ce qui empêche la formation de dépôts organiques et inorganiques dans cette zone.
PCT/DE2000/003215 1999-09-22 2000-09-15 Dispositif permettant de raccorder des appareils et des installations a des conduites pour liquides WO2001021232A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13797/01A AU1379701A (en) 1999-09-22 2000-09-15 Device for connecting appliances and installations to conduits for liquid

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19945496A DE19945496C2 (de) 1999-09-22 1999-09-22 Vorrichtung zum Anschluss von Geräten und Anlagen an flüssigkeitsgefüllte Leitungen
DE19945496.5 1999-09-22
EP00102002A EP1087170A2 (fr) 1999-09-22 2000-02-02 Dispositif pour connecter des appareils et installations aux tuyaux
EP00102002.3 2000-02-02

Publications (1)

Publication Number Publication Date
WO2001021232A1 true WO2001021232A1 (fr) 2001-03-29

Family

ID=26055043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003215 WO2001021232A1 (fr) 1999-09-22 2000-09-15 Dispositif permettant de raccorder des appareils et des installations a des conduites pour liquides

Country Status (2)

Country Link
AU (1) AU1379701A (fr)
WO (1) WO2001021232A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021161A1 (fr) * 1979-06-13 1981-01-07 Hoechst Aktiengesellschaft Dispositif de jonction pour corps creux plats
FR2486803A1 (fr) * 1980-07-21 1982-01-22 Dramtchev Milhail Appareillage de dialyse peritoneale continue
US4440207A (en) * 1982-05-14 1984-04-03 Baxter Travenol Laboratories, Inc. Antibacterial protective cap for connectors
GB2310616A (en) * 1995-02-13 1997-09-03 Aksys Ltd Modular home dialysis system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021161A1 (fr) * 1979-06-13 1981-01-07 Hoechst Aktiengesellschaft Dispositif de jonction pour corps creux plats
FR2486803A1 (fr) * 1980-07-21 1982-01-22 Dramtchev Milhail Appareillage de dialyse peritoneale continue
US4440207A (en) * 1982-05-14 1984-04-03 Baxter Travenol Laboratories, Inc. Antibacterial protective cap for connectors
GB2310616A (en) * 1995-02-13 1997-09-03 Aksys Ltd Modular home dialysis system

Also Published As

Publication number Publication date
AU1379701A (en) 2001-04-24

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