DE2044368A1 - catheter - Google Patents

catheter

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Publication number
DE2044368A1
DE2044368A1 DE19702044368 DE2044368A DE2044368A1 DE 2044368 A1 DE2044368 A1 DE 2044368A1 DE 19702044368 DE19702044368 DE 19702044368 DE 2044368 A DE2044368 A DE 2044368A DE 2044368 A1 DE2044368 A1 DE 2044368A1
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Germany
Prior art keywords
catheter
joints
tip
magnetic
permanent
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
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DE19702044368
Other languages
German (de)
Inventor
Hans Göteborg Tillander (Schwe den)
Original Assignee
Astra Meditec AB, Göteborg (Schwe den)
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Publication date
Application filed by Astra Meditec AB, Göteborg (Schwe den) filed Critical Astra Meditec AB, Göteborg (Schwe den)
Publication of DE2044368A1 publication Critical patent/DE2044368A1/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/005Flexible endoscopes
    • A61B1/0051Flexible endoscopes with controlled bending of insertion part
    • A61B1/0055Constructional details of insertion parts, e.g. vertebral elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0127Magnetic means; Magnetic markers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0067Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/0069Tip not integral with tube

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pulmonology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Manufacture Of Motors, Generators (AREA)

Description

Die Torliegende Erfindung betrifft einen magnetisch geführten Katheter mit einem Katheterrohr und einer rohrförmigen Katheterspitae, die eine Anaahl gegeneinander verschiebbarer Gelenke aufweist, die mit durchgehenden Löohern ▼ersehen sind·The invention relates to a magnetically guided one Catheter with a catheter tube and a tubular catheter tip, which can be moved relative to one another Has joints, which with continuous Löohern ▼ are seen

Aufgabe der vorliegenden Erfindung ist die Schaffung eines magnetisch geführten Katheters, der von aviflen in einfacher und wirksamer Vei.se vermittels eines außerhalb des Körpers angeordneten Magneten betätigt werden kann. Der Zweck besteht hierbei darin, den Katheter in ein gewünschtes Blutgefäß einzuführen, um eine selektive Ang i ographie zum Sani-The object of the present invention is to provide one magnetically guided catheter made by aviflen in simpler and more effective means can be actuated by means of a magnet arranged outside the body. The purpose is there this involves inserting the catheter into a desired blood vessel in order to enable selective angiography for the sanitary

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mein einer Pr«be zu erhalten oder iur Einführung unterschiedlicher Ariniiin χα «inta speziellen Organ·to receive my one exam or to introduce different ones Ariniiin χα «inta special organ ·

Bisheqlet eine Zahl rersohiedener Methoden Torgesohlagon -worden, die Blutgefäße des Körper· mit einem Katheter,
insbe sondere das Herz, zu errelohen, wobei die zuerst Torgosohlagonen Verfahren einen leichten chirurgieohen Sohnltt einschließen, um ein äußere« Gefäß, vie die Arterie der Sohenkelknechen (Α· femoralis) aufzudeoken und zu punktieren«
Bisheqlet a number of rersohiedener methods Torgesohlagon -been, the blood vessels of the body with a catheter,
in particular the heart, the first Torgosohlagon procedures including a light surgically-free sonltt to open and puncture an outer "vessel, such as the artery of the solitary servants (· femoralis)"

Später sind andere Verfahren entwickelt verden,
oin Katheter duroh TOrsohiedene Yorriohtungen, vie eine Kanüle, in das Blutgefäß β ingοfährt wird, duroh wolohes der Katheter geführt wird, odor eine Kanüle, daroh wolohe oln rührmngtfmden (aandrln) geführt wird, und Über den ein Katheter in das gewünschte Gefäß geführt wird, worauf der Führungsfaden entfernt wird·
Other methods were developed later,
o into a catheter through which there are no rotations, such as a cannula into which the blood vessel is inserted, through which the catheter is guided, or a cannula through which the oln is guided (aandrln) and through which a catheter is guided into the desired vessel, whereupon the guide thread is removed

Diese Verfahren zeigen Jedoch den Nachteil, daA man die kleinen Zwo ige dos Gefäßsysteme· nioht erreloben kann·
Xs sind doshalb Torsohiedene Arten τοη Kathetern rorgesohlagon worden, deren Spitzen in -rersohiedenen Vegen gobogen werden klnneu, um ein anderes Gefäß zu erroiohon, als dasjenige, durch wolohes der Katheter eingeführt worden ist*
However, these methods have the disadvantage that the small twos in the vascular system cannot be reconstructed.
Torso-lower types of catheters have become rorgesohlagon, the tips of which are narrowly bent in -rersohiedenen veins in order to erroiohon another vessel than that through which the catheter was introduced *

Somit ist eine rerbiegbare Spitze Torgosohlagon worden, dl· gerade gehalten werden knnn, bis sie den gewünschtenThus a bendable point has become Torgosohlagon, dl · can be held straight until the desired

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Zweig eines Gefäßes erreicht, und zwar duroh einen sich innerhalb des Katheters erstreckenden Führunßsfaden, der herausgezogen ist und in das Gefäß gebogen wird· Große Schwierigkeiten sind damit verbunden, diese Katheterspitze zu betätigen, da die Spitze nur in einer Ebene biegbar ist und da sie nur eine gegebene und in dem Gefäß nicht beeinflußbare Biegung hat·Branch of a vessel by a guide thread extending within the catheter, the pulled out and bent into the jar · Large Difficulties are associated with this catheter tip to operate because the tip can only be bent in one plane and because it is only a given and cannot be influenced in the vessel Has bend

Andere führbare Katheter weisen Führungsfäden auf, die an QOther guidable catheters have guidewires that attach to Q

der Katheterspitze axg ebraoht sind und sich entlang der Innenseite des Katheters erstrecken, woduroh «loh die Katheterspitze, duroh Hereinziehen der Führungsfäden umbiegt· Das Umbiegen findet jedooh nur in einer Ebene statt· Der größte Naohteil bei dieser Verrichtung besteht daxin, daß, wenn der Katheter in einem Zweig- eder Nebengefäß plaziert werden ist, es faat unmöglich ist, die Kätheterspitze in eine neue Richtung umzubiegen, um den Katheter in ein neues Seitengefäß einzuführen·of the catheter tip are axg and stretched along the Extend the inside of the catheter, whatever the reason Catheter tip, bent by pulling in the guide threads, however, bending takes place only in one plane The greatest part of this operation consists in the fact that when the catheter is in a branch of the secondary vessel be placed is, it is impossible, the catheter tip Bend in a new direction to insert the catheter into a new side vessel

Das Erfordernis einer vergrößerten selektiven Katheterisierung entstand aufgrund des Interesses an der Arteriographie distaler Gefäße und an der Verordnung verschiedener Arzneien, wie z.B. einem Zytostatioum in einem speziellen Organ.The need for increased selective catheterization arose because of the interest in arteriography distal vessels and on the prescription of various drugs, such as a cytostatioum in a special one Organ.

Es i-st für die «elektlve Katheterisierun^ der Blutgefäße bekannt, einen Katheter einzuführen, dessen Spitze aus einer Anzahl zylindrischer, rohrförmiger Gelenke besteht,It is for the "elective catheterization" of the blood vessels known to introduce a catheter, the tip of which consists of a number of cylindrical, tubular joints,

1 0 S 9 1 9 / I Ci S 7 BAD ORIGINAL1 0 S 9 1 9 / I Ci S 7 BAD ORIGINAL

die vermittels Ku^e!verbindungen aneinander angebracht sind, wobei ein Ende des Gelenkes eine Kugel zeigt und das andere Ende ein Gehäuse0 Die identisch gleichen Gelenke sind aus einem nicht korrodierenden, rost sichere*. Stal 1 mit magnetischen Eigenschaften hergestellt. Die Katheterspitze wird durch ein außerhalb des Körpers ;·ι geordnetes Magnetfeld, geführt. Dieses Verfahren ist in 11 Act a. Radiol. k$ (.1956) 21-26, H. Tillander" beschrieben. the means Ku ^ e! connectors are attached to each other, one end of the joint is a ball and the other end a housing 0 The same identical joints are made of a non-corrosive, stainless secure *. Stal 1 made with magnetic properties. The catheter tip is guided through a magnetic field arranged outside the body. This procedure is set out in 11 Act a. Radiol. k $ (.1956) 21-26, H. Tillander ".

Sehr große magnetische Feldstärken sind jedoch zur Führung dieser Katheterspitze erforderlich, was seinerseits einmal zu einer sehr großen und schwere;.. Magnet anordnung und zum anderer dazu führt, daß eine Röntgenstrahl-Televionsanlage für die Beobachtung der Führung gestört wird, wodurch die Beobachtung komplizierter oder nahezu unmöglich wird.However, very large magnetic field strengths are used for guidance this catheter tip required, which in turn leads to a very large and heavy; .. magnet arrangement and on the other hand leads to the fact that an X-ray Televionsanlage for the observation of the guide is disturbed, making the observation more complicated or nearly impossible will.

Es wurde nun in überraschender Weise durch die vorliege:ide Erfindung möglich, die oben genannten Nachteile zu vermeiden, wobei die Katheterspitze eine Anzahl im wesentlichen zylindrischer Gelenke aus permanent magnetischem Material aufweist, die vermittels im wesentlichen zylindrischer, aus nichtmagnetischem Material hergestellter Verbindungsgelenke verbunden sind. Dadurch, daß man die Gelenke durch ein niclitniagnetisches Material voneinander getrennt hält, wird eine höchst elastische und zuverlässige Verbindung, auch bei großen äußeren magnetischen Feldstärken einhalten οIt was now in a surprising way by the present: ide Invention possible to avoid the above-mentioned disadvantages, the catheter tip being a number essentially has cylindrical joints made of permanent magnetic material, which by means of substantially cylindrical, connecting joints made of non-magnetic material are connected. By having the joints separated from each other by a niclitniagnetisches material, a highly elastic and reliable connection becomes, also comply with large external magnetic field strengths ο

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Gemäfl ·1η·Γ bevorzugten Ausführungsforin der Erfindung bestehen die permanent magnetischen Gelenke aus einer Legierung aus Kobalt und Platin, wobei der Kobaltgehalt vorzugsweise 98 Gewichtsprozente und der Platin -vorzugsweise 2 Gew.-% der Legierung ausmachen·According to the preferred embodiment of the invention The permanent magnetic joints consist of an alloy of cobalt and platinum, with the cobalt content preferably 98 percent by weight and the platinum -preferably Make up 2% by weight of the alloy

Weitere Vorteile, Merkmale und Anwendungaraögliohkeiten der vorliegenden Arfindung ergeben sieh aus den Zeichnungen im Zusammenhang mit der folgenden Beschreibung. g Further advantages, features and application possibilities of the present invention can be seen from the drawings in connection with the following description. G

Xs zeigentXs show

Pig· 1 eine allgemeine Ansieht des Srfindungsgegenstandes undPig · 1 is a general view of the subject matter of the invention and

Fig· 2 einen Längsschnitt duroh den Katheter·2 shows a longitudinal section through the catheter

Der inage«amt mit 1 bezeiohnete Katheter weist auf der einen Seite ein gewöhnliches Katheterrohr 2 und auf der * The inage "amt has 1 bezeiohnete catheter on the one hand an ordinary catheter tube 2 and on the *

anderen Seite eine Katheterspitse 3 auf· Letztere weist eine Anzahl Gelenke k ame einem permanent-magnetischem Material und einer Anzahl aus niohtmagnetisohem Material hergestellter Terblndungsgelenke 5 auf· Das permanent magnetische Material, das keineswegs duroh Blut angegriffen werden muÄ, besteht aus einer Legierung von Kobalt und Fiatin mit dom Xeionen "Platin** IX «, bei den der Keb.ltgehalt ·8 Gew-Jt und deyfrlatineehalt 2 β·ν·~£ b«- tragen*other side, a Katheterspitse 3 on · The latter has a number of joints k ame a permanent-magnetic material and a number of niohtmagnetisohem material produced Terblndungsgelenke 5 on · The permanent magnetic material which are not attacked duroh blood muÄ, consists of an alloy of cobalt and Fiatin with dom Xeionen "Platin ** IX", in which the Keb.lt content · 8 Gew-Jt and deyfrlatineehalt 2 β · ν · ~ £ b «- carry *

ORIGINALORIGINAL

1 0ÖÖ1d/10Ö71 0ÖÖ1d / 10Ö7

Das nicht magnetische Material« das di· Verbindungsgelenk· 5 aufweisen) ist ein rostfreier Stahl» der gerade so gewählt ist, daß keine Korrosion auftritt.The non-magnetic material «the di · connecting joint · 5) is a stainless steel »the straight is chosen so that no corrosion occurs.

Die permanent-i.iagnetischen Gelenke 4 sind im wesentlichen zylindrisch und mit einem zentralen durchgehenden Loch 6 Tersehen·The permanent i.iagnetic joints 4 are essentially cylindrical and with a central through hole 6 holes

Der Durchmesser des Gelenkes beträgt etwa 2,1 nun und seine Länge rariiert το η etwa 3,0 bis etwa -6,0 mm, wobei das inner· Loch 6 einen Durohmesser von etwa 0,8 mm hat. Die Gelenke kt die Ton dem am weitesten τοη Torn liegenden und τοη den am naheaten an dem Katheterrohr liegenden beabstandet angeordnet sind, sind in der Form zueinander gleieh, haben aber iur Spitse hin abnehmende Länge und sind an den Jeweiligen Sn de η identiaoh geformt« Die Enden 7 d·· Gelenkes k haben Kugelform und sind im Eingriff mit dem sylindrisohen Teil daroh einen kurzen Haie 8 gehaltert. Se· weiteren ist das kurit Bnde des Gelenkes 4 etwa· abgeschrägt und bildet einen Winkel τοη 10 bis 12* einsohlieBlioh, gegen die Öffnung de* Loche· 6«The diameter of the joint is now about 2.1 and its length varies το η from about 3.0 to about -6.0 mm, the inner hole 6 having a diameter of about 0.8 mm. The joints k t the tone to the furthest τοη torn and τοη the ones closest to the catheter tube are arranged at a distance, are identical in shape to one another, but have a decreasing length towards the tip and are shaped identiaoh at the respective Sn de η « The ends 7 d ·· joint k have a spherical shape and a short shark 8 is held in engagement with the cylindrical part. Furthermore, the curit band of the joint 4 is approximately beveled and forms an angle τοη 10 to 12 * EinsohlieBlioh, against the opening of the * holes · 6 «

Die Verbindungsgelenke 5 sind im wesentlichen »ylindrisch geformt und haben einen Durchmesser Ten etwa 2,1 mm und eine Länge τοη etwa 2,3 mm. Die Gelenke 5 haben während 'der Terbindan« alt einem Gelenk k an Jedem Bae> eine Flanaohfera «it einen naoh innen gewendeten Flan·eh» Bio Oolonko k und die Terbindungagelenke 5 der Kätheterepitae werdenThe connecting joints 5 are essentially shaped like a cylinder and have a diameter Ten approximately 2.1 mm and a length τοη approximately 2.3 mm. The joints 5 have during the terbindan "old a joint k on each Bae> a Flanaohfera" it is a near inwardly turned flange eh "Bio Oolonko k and the terbinding joints 5 of the Kätheterepitae

1 0 9 Ö 1 Ö / 1 0 Ö 7 E/D 0R-1W - 7 -1 0 9 Ö 1 Ö / 1 0 Ö 7 E / D 0 R- 1 W - 7 -

durch Einführen der nach außen gewendeten Flansche 7 der Gelenke k in die Verbindungagelenke 5 miteinander in Eingriff gebracht, worauf die Enden der Verbdndungagelenke 5 über die kugelförmigen Enden 7 der Gelenke k zur Ausbildung des nach innen gewendeten Flansches 11 eingerollt werden, der im Eingriff mit den kugelfönuigen Enden 7 und den Hals 8 sein wird«brought into engagement with one another by inserting the outwardly turned flanges 7 of the joints k into the connecting joints 5, whereupon the ends of the Verbdndungingeenke 5 are rolled over the spherical ends 7 of the joints k to form the inwardly turned flange 11, which is in engagement with the spherical ends 7 and the neck 8 will be "

Da die Gelenke k permanent-magnet!sch sind mit zwei Polen,Since the joints k are permanently magnetic with two poles,

sind sie so angeordnet, daß ein magnetischer Λοιdpol gegen "are they arranged so that a magnetic Λοιdpol against "

einen magnetischen Südpol steht, wobei die Anziehung zwischen den Polen die Gelenke zueinander zu halten versucht sowie bei Abwesenheit eines äußeren magnetischen Feldes die Katheterspitze gerade au halten versucht.a magnetic south pole stands, with the attraction between tries to keep the joints between the poles and the catheter tip in the absence of an external magnetic field just trying to keep au.

Duron die AbeohrKgung Jedes Gelenkes k kann eine Gesamtbiegung von etwa Zk zwischen zwei Gelenken erhalten werden, was genügt» Venn, diese Biegung aus epeaiellera Grund au groll sein sollte, können die Flansche der Verbindungage- λ K can Duron the AbeohrKgung Each joint a total deflection are obtained from about Zk between two joints, which satisfies "Venn, this bending of epeaiellera base should be au rumbling, the flanges of the Verbindungage- to λ

lenke verändert werden, um eine verkleinerte Biegung au bekommen« joints can be changed to get a smaller bend. "

Das vordere permanent-magnetische Gelenk 4a ist in einem gewissen Made konisch an seinem Vorderende verjüngt und mit abgerundeten Kanten versehen, um da· Einführen in da· Gefäl au e meg Hohen·The front permanent magnetic joint 4a is in a certain way Made conically tapered at its front end and provided with rounded edges in order to insert it into the slope au e meg heights

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Das hintere Ende des vorderen Gelenkes 4a ist ebensoThe rear end of the front joint 4a is also

wie die andereJi Gelenke 4 geformt.shaped like the other ji joints 4.

Das Gelenk 4b, das am naliesten am Katheterrohr 2 liegt, ist an seinen vorderen Ende, ebenso vie die anderen Gelenke 4 geformt, d.h. das Gelenk 4b ist ixier flanschförmig. Das rückwärtige Ende des Gelenkes 4b ist zylindrisch geformt und innen mit einer Bohrung 9 versehen, die einen etwas größeren Durohmesser als der des durchgehenden Loches 6 aufweist· Die Bohrung' 9 ist innen mit einem Gewinde 10 versehen·The joint 4b, which is closest to the catheter tube 2, is shaped at its front end, just like the other joints 4, ie the joint 4b is axially flange-shaped. The rear end of the joint 4b is cylindrically shaped and provided with a bore 9 on the inside, which has a slightly larger diameter than that of the through hole 6 The bore 9 is internally provided with a thread 10

Das Katheterrohr 2 hat einen Innendurchmesser von etwa 0,8 nni und ist am hinteren Gelenk 4b angeordnet und etwas verjüngt geformt« Die Katheterspitze 3 ist aif das vordere, verjüngte Ende des Katheterrohres geschraubt, wobei das Gewinde 10 das Gewinde im Rohr 2, das aus einem thermoplastische η Material hergestellt ist, kämmt·The catheter tube 2 has an inside diameter of approximately 0.8 nni and is located at the rear joint 4b and something tapered shape «The catheter tip 3 is aif the front, screwed tapered end of the catheter tube, the thread 10 being the thread in the tube 2, which consists of a thermoplastic η Material is made, combs

Durch diese Gewinde wird eine eiohere Verbindung zwischen der Katheterspitze 3 und dem Rohr 2 erhalten, und sehr große Kräfte müssen aufgewendet werden, um die Spitze 3 abzuschrauben oder zu brechen. Das heißt, daß eine fast stufenIose Verbindung zwischen der Spitze 3 und dem Rohr erhalten wird.This thread creates a connection between the catheter tip 3 and the tube 2, and very large forces have to be applied to the tip 3 unscrew or break. This means that there is an almost stepless connection between the tip 3 and the tube is obtained.

Die Betätigung des Katheters mit der führbaren Spitz· gemäß der vorliegenden Erfindung ist sehr einfaoh. Somit wirdThe operation of the catheter with the guidable tip according to the present invention is very simple. Thus becomes

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der Katheter in dl· Arterie d«s Schenkelknochens «ines lÜMWlii oder Tieres in der üblichen Veise rermittels einer in die Arterie eingeführten Kanüle eingerührt. Venn der Katheter in die Art^erie hineingeführt worden ist, wird die Nadel entfernt und zum äußersten Ende des Katheters bewegt» Dann wird eine Heparin-Salinlösung durch den Katheter zur Verhinderung der Blutgerinnung eingeführt. Ferner wird eine kleine Menge Papaverin zur Verhinderung von Konvulsionen in dünneren Arterien injiziert. Der Katheter wird jetzt in der Richtung gegen das Herz duroh die ( Arterie und in die Aorta hineinbewegt·the catheter in the artery of the femur LÜMWlii or animal in the usual way by means of one The cannula introduced into the artery is stirred. When the catheter has been inserted into the artery, will Removed the needle and moved it to the very end of the catheter »Then a heparin-saline solution is passed through the Catheter inserted to prevent blood clotting. A small amount of papaverine is also injected to prevent convulsions in thinner arteries. The catheter is now directed towards the heart through the ( Artery and moved into the aorta

Bei diesem Stand wird ein Röntgenapparat angeschaltet, duroh den die Position der Katheterspitze kontrolliert werden kann. Weiterhin tritt ein Elektromagnet für die Führung der Katheterspitze in Eingriff. Dieserüber dem behandelten Körper angebrachte Magnet kann dann eine sioh bisAt this point, an X-ray machine is switched on to monitor the position of the catheter tip can be. Furthermore, an electromagnet for guiding the catheter tip is engaged. This over the treated Body attached magnet can then hold a sioh up

aberbut

etwa 100 Gauss 30/ca vom Magnet erstreckende Feldstärke erzeugen. Der obere liihrungsmagnet wird in einer neutralen Position gehalten, bis die Katheterspitze die öffnung eines gewünsohten Nebengefäßes erreicht hat, wenn die Position des Führungsmagnetes gewechselt wird, so daß sich die Katheterspitze seitlich in das Gefäß hinein umbiegt. Dieser Prozeß kann beim Erreichen des näohsten Zweiges wiederholt werden, und auf diese Veise kann der Katheter gegen ein gewünsohtes Organ herausgeführt werden·about 100 Gauss 30 / ca field strength extending from the magnet produce. The upper guide magnet is in a neutral Position held until the catheter tip opens a desired secondary vessel has reached when the position of the guide magnet is changed so that the catheter tip bent sideways into the vessel. This process can be repeated when reaching the closest branch, and in this way the catheter can be used against a desired one Organ to be brought out

Ue die Position des Blutgefäßes zu studieren, kann man dann und wann kleine Mengen eines Röntgenstrahlen· trastmit te IsYou can then study the position of the blood vessel and when small amounts of an X-ray tracer agent Is

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duroh den Katheter injizieren.by injecting the catheter.

Die folgenden Arterien sind bei einem Bond vermittels eines Katheters gemäß der vorliegenden Erfindung katheterisiert worden, der duroh die Art^erie des Schenkel— knoohens eingeführt wurde,The following arteries are mediating in a bond of a catheter according to the present invention which, due to the type of thigh - knoohens was introduced,

1, Arteria renalis (die Arterien der Nieren) mit selektiver Käthetisierurtg ihrer Zweige,1, renal arteries (the arteries of the kidneys) with more selective The aesthetization of their branches,

2« Arterial mesenterica oaudalis und A«tnes,cranialis mit einigen Zweigen (diese Gefäße gehören im wesentlichen zu2 "Arterial mesenterica oaudalis and A" tnes, cranialis with a few branches (these vessels essentially belong to

Eingeweiden (intestines),Entrails (intestines),

3« Trunous oeliacus mit Arteria linealis (die Arterie der Milz)| Arteria hepaticus Oommunia (der Stanm der Arterien der Leber) und. Arteria gastroduodenalis (zum Zwölffingerdarm und Pankreas),3 «Trunous oeliacus with arteria linealis (the artery the spleen) | Arteria hepaticus Oommunia (the stem of the arteries the liver) and. Gastroduodenal artery (to the duodenum and pancreas),

4, Arteria gastrioa sinistra (dem Magen),4, left gastric artery (the stomach),

5, Arteria vertebralis und arteria oarotis oommunis sowie ihre Zweige (die Arterien des Gehirns)·5, arteria vertebralis and arteria oarotis oommunis as well their branches (the arteries of the brain)

6, Arteriae subolavia und ihre Verlängerungen (den Armen)6, subolavian arteries and their extensions (the arms)

7* Arteria femoralie und ihre Verlängerung (dem Sohenkelknoohen auf der gegenüberiiegenden Seit·),7 * Arteria femoralie and its extension (the foot-handle knot on the opposite side),

109819/10Ö7 BAD ORIGINAL109819 / 10Ö7 BAD ORIGINAL

- 11 -- 11 -

8. All· Teil· der Aorta und *· coroimria (dl· Gefäß· des H«rB«n·).8. All part of the aorta and * coroimria (dl vessel des H «rB« n ·).

- 12 -- 12 -

109818/1087109818/1087

BAD ORIGINALBATH ORIGINAL

Claims (2)

Patent ansprüohePatent claims 1·j Magnetisch geführter Katheter mit einem Katheterrohr und einer rohrförmigen Katheterspitze aus einer Anzahl biegbar aneinander angeordneter Gelenke, die mit durchgehenden Löchern versehen ist, dadurch gekennzeichnet, daß die Katheterspitze eine Anzahl von im wesentlichen zylindrischer, aus permanent-magnetisohem Material hergestellter Gelenke aufweist, die miteinander vermittels im wesentlichen zylindrischer, aus nichtmagnetischem Material hergestellter Verbindungagelenke verbunden sind·1 · j Magnetically guided catheter with a catheter tube and a tubular catheter tip of a number bendable joints arranged one against the other, which is provided with through holes, characterized in that, that the catheter tip has a number of substantially cylindrical, made of permanent magnetism material has manufactured joints, which are interconnected by means of substantially cylindrical, non-magnetic Material of manufactured connecting joints are connected 2. Katheter naoh Anspruch 1, daduroh gekennzeichnet, daβ die permanent-magnetischen Gelenke aus einer Legierung aua Kobalt und Platin bestehen, wobei der Kobaltgehalt vorzugsweise 98 Gew.-^ und der Platingehalt vorzugsweise 2 Gew.-^ der Legierung aufweisen.2. Catheter naoh claim 1, daduroh characterized, that the permanent magnetic joints are made of an alloy there are also cobalt and platinum, the cobalt content being preferably 98% by weight and the platinum content being preferred Have 2 wt .- ^ of the alloy. 3« Katheter naeh Anapruoh 1, daduroh gekennzeichnet, daA das Material der Ve rbindungsgolenke aus nichtmagnetischem, restfreiem Stahl besteht«3 «Catheter according to Anapruoh 1, daduroh marked daA the material of the connecting joints made of non-magnetic, residue-free steel consists " k. Katheter naoh eine« oder mehreren der Anspruohe 1 bie 3» dadurch gekennzeichnet, daβ das vorderste Gelenk der Kätheterapitse permanent-magnetisch und punktförmig ist· k. Catheter according to "one or more of the claims 1 to 3" characterized in that the foremost joint of the catheter apitse is permanent-magnetic and punctiform. JJ· Katheter naoh einem «der mehreren der Aneprtteh· 1 bis kt daduroh gekennzeichnet, daJ das hintere Bnde 4mr The catheter is marked as one of the several of the options 1 to k t daduroh that the rear band is 4 mr - 13 -- 13 - 109819/1087 ead original109819/1087 ead original theterspitze ein permanent-iaagn«tisoh*a Gelenk ist, das auf seiner inneren Seite mit einem Gewinde zur Aufnahme des Katheterrohrea rersehen ist·theter tip is a permanent iaagn «tisoh * a joint that is seen on its inner side with a thread to accommodate the catheter tube 109819/1087109819/1087 C"D ORIGINALC "D ORIGINAL LeerseiteBlank page
DE19702044368 1969-10-28 1970-09-08 catheter Pending DE2044368A1 (en)

Applications Claiming Priority (1)

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SE14694/69A SE336642B (en) 1969-10-28 1969-10-28

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DE2044368A1 true DE2044368A1 (en) 1971-05-06

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DE19702044368 Pending DE2044368A1 (en) 1969-10-28 1970-09-08 catheter

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US (1) US3674014A (en)
JP (1) JPS4815111B1 (en)
CH (1) CH521759A (en)
DE (1) DE2044368A1 (en)
DK (1) DK124171B (en)
GB (1) GB1283453A (en)
NL (1) NL7015449A (en)
NO (1) NO123499B (en)
SE (1) SE336642B (en)

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