US3785683A - Connecting device for a catheter - Google Patents

Connecting device for a catheter Download PDF

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Publication number
US3785683A
US3785683A US00220843A US3785683DA US3785683A US 3785683 A US3785683 A US 3785683A US 00220843 A US00220843 A US 00220843A US 3785683D A US3785683D A US 3785683DA US 3785683 A US3785683 A US 3785683A
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US
United States
Prior art keywords
piston
cylinder
contrast medium
catheter
connecting element
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
US00220843A
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English (en)
Inventor
T Adelhed
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.)
Siemens AG
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Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of US3785683A publication Critical patent/US3785683A/en
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/481—Diagnostic techniques involving the use of contrast agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/504—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of blood vessels, e.g. by angiography
    • 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
    • A61M39/1055—Rotating or swivel joints

Definitions

  • an object of the present invention is the provision of connecting means providing a complete seal and yet making possible a free rotation of the catheter relatively to the contrast medium container.
  • the coupling means consist of a cylinder provided with a cover closing at least one of its front surfaces.
  • a piston sealed against the cylinder walls is introduced into the cylinder and is mounted so as to be rotatable about the longitudinal axis of the cylinder.
  • the piston is secured against sliding out.
  • the cylinder has a flow channel for the flow of the contrast medium into its interior, the channel being closed by a connecting element.
  • the piston has a flow channel closed by another connecting element for the flow of the contrast medium outwardly from the interior of the cylinder.
  • the coupling means consist of two pistons introduced into the cylinder and secured against sliding out, the pistons being rotatable about the longitudinal axis of the cylinder.
  • Each of the pistons has a flow channel provided with a separate connecting element for the flow of the contrast medium from one connecting element into the interior of the cylinder and then outwardly to the other connecting element. Practical experience has shown that this double rotating capacity provides better working conditions.
  • a particularly good seal against the outgoing contrast medium is produced when the cylinder can be closed at the front sides up to the flow channels and when the surfaces of the covers and pistons extending toward each other and at right angles to the axis of the cylinder are shaped as superior joints.
  • the present invention makes it possible for one of the pistons to run particularly softly, whereby only this piston must be provided with special bearing means, and to provide a good scaling for this piston.
  • a further piston is provided between that piston which is directed toward the catheter and the cover.
  • This additional piston is introduced with liquid seal into the cylinder and it has a concentrical axial bore through which passes the shaft of the adjacent piston.
  • This shaft is rotatable about the longitudinal axis of the cylinder and is also sealed against liquid.
  • Frictionally poor bearing means are introduced between the surfaces of the two pistons which are directed toward each other and extend at right angles to the axis of the cylinder.
  • FIG. 1 is a diagram illustrating the main features of a device for catheterizing a patient.
  • FIG. 2 is a side view, partly in section, of a connecting device in accordance with the present invention.
  • an automatically operated high pressure injection syringe 1 supplies dosed amounts of contrast medium during predetermined time periods through a hose 2 to the catheter 3 which is introduced into an arm vein of a patient 5 lying upon the table 4 of an X-ray device (not shown).
  • the high pressure injection syringe 1 has an operating section 6 with setting means 7 and 8 for the amount of the contrast medium and the duration of the injection, as well as a button 9 for releasing the flow of the contrast medium which can be also'operated automatically, for example, depending upon the heart phase of the patient 5.
  • the contrast medium is located in the spray cylinder 10 which is connected with the operating section 6 by holding elements 11 and 12.
  • the spray piston 13 is connected by a connecting rod 14 with a lever 15 which actuates the spray piston 13 depending upon values selected by the setting means 7 and 8.
  • the hose 2 carries a connecting device 16 which is shown in detail in FIG. 2.
  • This connecting device 16 has a cylinder 17 which may consist entirely of metal or of a glass tube having metallic end caps, as used in known injection syringes. One end of the cylinder is closed by a front wall 18. A piston 19 having a seal 20 is introduced into the upper part of the cylinder 17.
  • the flow channel of the piston for the contrast medium is formed by a cylindrical shaft 21 extending through a concentric bore of the front surface 18 of the cylinder 17.
  • the outer end of the shaft carries a connecting element 25 shaped as a box coupling for connecting the device with the pressure container (not shown) for the contrast medium.
  • the cylinder and the shaft have a channel 23 extending in the longitudinal direction.
  • the end surface of the piston 19 directed toward the front cover 18, as well as the surface of the cover 18 directed toward the piston extend at right angles to the central axis of the cylinder 17 and are so ground that the two surfaces tightly engage each other forming a so-called superior joint.
  • the cylinder 17 also contains a second piston 27'similar in shape to the first piston 19 and arranged also with fine fitting in the lower part of the cylinder.
  • a flow channel 31 extends longitudinally through the piston 27 and its shaft 29.
  • the front surfaces of the two pistons 19 and 27 extend at right angles to the longitudinal axis of the cylinder and are separated from each other by a small intermediate space 22.
  • a third piston 37 is located between the surface of the piston 27 directed toward the catheter and the cover 39 of the cylinder 17.
  • the cylindrical shaft 29 which is concentrical to central axis of the cylinder, is freely rotatable in the piston 37 and extends through it with liquid-tight seal.
  • the piston 37 is also introduced into the cylinder 17 with a sealing slide,
  • the front surface of the piston 37 extending toward the catheter also engages the inner surface 40 of the cover 39 with a socalled superior joint.
  • the inner surface 40 of the cover 39, just as the front surface of the cover 18, is also preferably surface ground and extends at a right angle to the axis of the cylinder.
  • the cover 39 has a concentric bore, similar to that of the piston 37, and the shaft 29 is rotatably mounted in that bore with fine fitting.
  • the cover 39 can be screwed upon the outer surface of the cylinder 17 by screw threads 41.
  • the surfaces of the pistons 27 and 37 which face each other also extend at a right angle to the axis of the cylinder. Axial ball bearings 35 are located between these surfaces.
  • Liquid contrast medium is introduced under pressure into the connecting element and flows through the channel 23 in the direction of the arrow 26.
  • the fine sealing of the engaging surfaces between the piston 19 and the cylinder 17 results in that the contrast medium cannot penetrate to the bore of the front cover 18. This seal is also strengthened by the fine joint engagement of the front surface of the piston 19 with the inner ground surface 24 of the cover 18.
  • the contrast medium penetrates through the channel 23 into the space 22 between the pistons 19 and 27 and then flows through the channel 31 and the coupling member 33 to the catheter in the direction of the arrow 34.
  • the device composed of the piston 27 with the shaft 29 and the connecting element 33 must easily rotate in the cylinder 17 while remaining sealed and must be able to move slightly axially.
  • a frictionally poor bearing consisting of ball bearings 35 is provided between the piston 27 and the piston 37.
  • the space 22 between the two pistons 19 and 27 has the purpose to prevent any difficulty in the rotation of the piston 27 which could occur if the two opposed front surfaces of the pistons 19 and 27 would be in engagement.
  • the piston 37 does not serve essentially as a seal but to guide the shaft 29 of the piston 27; its front surface directed toward the interior of the cylinder serves as a support for the ball bearings 35.
  • the device has essentially the manufacturing reason that the device can be composed of pistons of the same diameter and of at least approximately equal lengths. Furthermore, the manufacture is simplied in that the two pistons 19 and 27 with their shafts 21 and 29 and extending channels 23 and 31 have essentially the same structure. In addition, the described construction with three pistons results in a higher safety as far as seal is concerned.
  • the outer surface of the piston 27 is provided with an annular groove 43. As long as this groove is not completely filled with liquid, the pressure between the hollow of the groove 43 and the intermediate space at the ball bearings 35 is small, and thus prevents to a substantial extent the passage of the medium along the outer wall of the piston 27.
  • a device for connecting a catheter with a container for a contrast medium, said container being subjected to pressure comprising coupling means having a cylinder, a connecting element removably connecting said cylinder with said container and having a channel for the flow of the contrast medium, another connecting element removably connecting said cylinder with said catheter and having a channel for the flow of the contrast medium, covers closing both ends of the cylinder and having openings for said channels, a first piston liquid tightly mounted in said cylinder and directed to the first-mentioned connecting element,
  • said piston having a transverse axial passage coaxial with said cylinder and communicating with the firstmentioned channel, a second piston liquid tightly mounted in said cylinder and directed to the secondmentioned connecting element, said second piston having a transverse axial bore, a third piston located between the first and second pistons and liquid tightly mounted in said cylinder, said third piston being spaced from said first piston, a shaft firmly connected with said between the second and third pistons, whereby the third piston and its shaft are rotatable relatively to the first piston.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Radiology & Medical Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Vascular Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
US00220843A 1971-02-01 1972-01-26 Connecting device for a catheter Expired - Lifetime US3785683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE01186/71A SE361130B (da) 1971-02-01 1971-02-01

Publications (1)

Publication Number Publication Date
US3785683A true US3785683A (en) 1974-01-15

Family

ID=20257738

Family Applications (1)

Application Number Title Priority Date Filing Date
US00220843A Expired - Lifetime US3785683A (en) 1971-02-01 1972-01-26 Connecting device for a catheter

Country Status (3)

Country Link
US (1) US3785683A (da)
GB (1) GB1385032A (da)
SE (1) SE361130B (da)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152014A (en) * 1978-01-30 1979-05-01 Soeffker Eldred E In-line hose swivel
US4254773A (en) * 1978-11-24 1981-03-10 Medex Inc. Swivel coupling for a catheterization system
US4573978A (en) * 1984-03-15 1986-03-04 Medrad, Inc. Angiographic syringe and connector for joining a catheter thereto
EP0202658A1 (en) * 1985-05-20 1986-11-26 TECHNICON INSTRUMENTS CORPORATION(a Delaware corporation) Zero dead volume connector
EP0320382A1 (fr) * 1987-12-10 1989-06-14 Jean Roger Denis Appareil de perfusion
US5163923A (en) * 1991-09-27 1992-11-17 International Win, Ltd. Apparatus for the administration of fluids to a small animal
US5485831A (en) * 1992-11-30 1996-01-23 University Hospital (London) Development Corporation Pulse-injector for quantitative angiographic blood-flow measurements
US5509911A (en) * 1992-11-27 1996-04-23 Maxxim Medical, Inc. Rotating adapter for a catheterization system
US5527299A (en) * 1994-05-13 1996-06-18 Critical Disposables, Inc. One-piece rotator and manifold system
US5549583A (en) * 1995-08-04 1996-08-27 Adam Spence Corporation Surgical connector
US5855568A (en) * 1996-11-22 1999-01-05 Liebel-Flarsheim Company Angiographic syringe and luer connector
RU2628057C2 (ru) * 2012-08-17 2017-08-14 Раумедик Аг Муфта катетера
US20210162193A1 (en) * 2019-11-28 2021-06-03 Axium Mtech SA Medical connector

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US929734A (en) * 1909-02-23 1909-08-03 August Walder Fluid-tight rotary joint for pipes.
US980776A (en) * 1908-05-08 1911-01-03 Martin Hardsocg Drill-coupling.
US1911423A (en) * 1931-05-25 1933-05-30 George W Biller Hose coupling
FR844720A (fr) * 1938-10-14 1939-07-31 Perfectionnements aux seringues et, plus particulièrement, aux seringues pour la transfusion du sang
US2379035A (en) * 1943-06-30 1945-06-26 Chiksan Tool Company Swing joint
US2893395A (en) * 1957-02-08 1959-07-07 Becton Dickinson Co Medical assembly and unit for liquid transfer
US3058761A (en) * 1958-07-02 1962-10-16 Aeroquip Corp Swivel joint having a resilient flange
US3167330A (en) * 1957-04-26 1965-01-26 Donald A Draudt Coupling

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US980776A (en) * 1908-05-08 1911-01-03 Martin Hardsocg Drill-coupling.
US929734A (en) * 1909-02-23 1909-08-03 August Walder Fluid-tight rotary joint for pipes.
US1911423A (en) * 1931-05-25 1933-05-30 George W Biller Hose coupling
FR844720A (fr) * 1938-10-14 1939-07-31 Perfectionnements aux seringues et, plus particulièrement, aux seringues pour la transfusion du sang
US2379035A (en) * 1943-06-30 1945-06-26 Chiksan Tool Company Swing joint
US2893395A (en) * 1957-02-08 1959-07-07 Becton Dickinson Co Medical assembly and unit for liquid transfer
US3167330A (en) * 1957-04-26 1965-01-26 Donald A Draudt Coupling
US3058761A (en) * 1958-07-02 1962-10-16 Aeroquip Corp Swivel joint having a resilient flange

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152014A (en) * 1978-01-30 1979-05-01 Soeffker Eldred E In-line hose swivel
US4254773A (en) * 1978-11-24 1981-03-10 Medex Inc. Swivel coupling for a catheterization system
US4573978A (en) * 1984-03-15 1986-03-04 Medrad, Inc. Angiographic syringe and connector for joining a catheter thereto
EP0202658A1 (en) * 1985-05-20 1986-11-26 TECHNICON INSTRUMENTS CORPORATION(a Delaware corporation) Zero dead volume connector
JPS6242049A (ja) * 1985-05-20 1987-02-24 テクニコン　インストルメンツ　コ−ポレ−シヨン 無駄容積の無いコネクタ
EP0320382A1 (fr) * 1987-12-10 1989-06-14 Jean Roger Denis Appareil de perfusion
FR2624379A1 (fr) * 1987-12-10 1989-06-16 Denis Roger Appareil de perfusion de securite
US5163923A (en) * 1991-09-27 1992-11-17 International Win, Ltd. Apparatus for the administration of fluids to a small animal
US5509911A (en) * 1992-11-27 1996-04-23 Maxxim Medical, Inc. Rotating adapter for a catheterization system
US5485831A (en) * 1992-11-30 1996-01-23 University Hospital (London) Development Corporation Pulse-injector for quantitative angiographic blood-flow measurements
US5527299A (en) * 1994-05-13 1996-06-18 Critical Disposables, Inc. One-piece rotator and manifold system
US5549583A (en) * 1995-08-04 1996-08-27 Adam Spence Corporation Surgical connector
US5855568A (en) * 1996-11-22 1999-01-05 Liebel-Flarsheim Company Angiographic syringe and luer connector
RU2628057C2 (ru) * 2012-08-17 2017-08-14 Раумедик Аг Муфта катетера
CN110141781A (zh) * 2012-08-17 2019-08-20 劳梅迪奇股份公司 导管耦接器
US10471247B2 (en) 2012-08-17 2019-11-12 Raumedic Ag Catheter coupling
US20210162193A1 (en) * 2019-11-28 2021-06-03 Axium Mtech SA Medical connector

Also Published As

Publication number Publication date
GB1385032A (en) 1975-02-26
SE361130B (da) 1973-10-22

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