DE102006052710A1 - Device for investigation and execution of interventions, puncture and injections in body cavities of human or animal body, has catheter with distal end and two lumens partly parallel to each other - Google Patents
Device for investigation and execution of interventions, puncture and injections in body cavities of human or animal body, has catheter with distal end and two lumens partly parallel to each other Download PDFInfo
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- DE102006052710A1 DE102006052710A1 DE102006052710A DE102006052710A DE102006052710A1 DE 102006052710 A1 DE102006052710 A1 DE 102006052710A1 DE 102006052710 A DE102006052710 A DE 102006052710A DE 102006052710 A DE102006052710 A DE 102006052710A DE 102006052710 A1 DE102006052710 A1 DE 102006052710A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/445—Details of catheter construction
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- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M25/0084—Catheter tip comprising a tool being one or more injection needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B2017/3445—Cannulas used as instrument channel for multiple instruments
- A61B2017/3447—Linked multiple cannulas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
- A61B2090/378—Surgical systems with images on a monitor during operation using ultrasound
- A61B2090/3782—Surgical systems with images on a monitor during operation using ultrasound transmitter or receiver in catheter or minimal invasive instrument
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4821—Determining level or depth of anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Untersuchung und zur Durchführung von Interventionen, Punktionen und Injektionen in Körperhöhlen, -gefäßen und -geweben eines menschlichen oder tierischen Körpers gemäß dem Patentanspruch 1.The The invention relates to a device for the examination and implementation of Interventions, punctures and injections in body cavities, vessels and tissues of a human or animal body according to the claim 1.
Bei Punktionen von Gefäßen, insbesondere von tiefer gelegenen Venen (z.B. Vena subclavia, Vena anonyma) und Arterien, sowie bei Punktionen von Geweben (z.B. Tumoren, Pleurahöhle, Blase, etc.) oder Injektionen zur Anästhesie (Regionalanästhesiverfahren wie Plexusblockade, periphere Nervenblockade oder rückenmarksnahe Regionalanästhsie) ist es notwendig, die entsprechenden anatomischen Strukturen mit der Punktionsnadel oder der Punktionshohlnadel sehr genau zu treffen.at Punctions of vessels, in particular of lower-lying veins (e.g., subclavian vein, anonymous vein) and arteries, and at punctures of tissues (e.g., tumors, pleural cavity, bladder, etc.) or injections for anesthesia (Regionalanästhesiverfahren such as plexus block, peripheral nerve block or spinal cord Regionalanästhsie) it is necessary to use the appropriate anatomical structures to meet the puncture needle or puncture hollow needle very precisely.
Meist werden derartige Punktionen aber blind durchgeführt, so dass es zu Fehlpunktionen (evtl. mit Komplikationen) kommt oder der gewünschte anästhesiologische Effekt nicht eintritt. So kann es z.B. bei Legen einer Thoraxdrainage zu Fehlpunktionen von Lunge, Leber, Herz oder Aorta kommen. Bei Gefäßpunktionen kann zum Beispiel das Gefäß nicht gefunden werden, es wird statt einer Vene eine Arterie fehlpunktiert oder ein Organ wird versehentlich verletzt. Gelegentlich können derartige Fehlpunktionen einen tödlichen Ausgang nehmen.Most of time However, such punctures are carried out blindly, so that there are malfunctions (possibly. with complications) or the desired anesthetic effect does not come entry. So it can be e.g. when laying a chest drainage to Fehlpunktionen come from the lungs, liver, heart or aorta. For vascular punctures For example, the vessel can not be found be, instead of a vein an artery is misspun or an organ is accidentally injured. Occasionally, such Malpositions a deadly Exit.
Es ist bekannt, zur besseren Sichtbarmachung bildgebende Verfahren zu verwenden. Als bildgebende Verfahren bei der Punktion kommen zurzeit die Fluoroskopie, die Computertomographie oder der transkutane Ultraschall zum Einsatz. Alle Verfahren haben große Nachteile. Die Fluoroskopie kann nur die Punktionsnadel und die umgebenden Knochenstrukturen darstellen, das zu punktierende Gefäß oder Organ bleibt jedoch weitgehend unsichtbar. Dadurch kann die Punktionsnadel nicht zielsicher dirigiert werden, da z.B. bei anatomischen Varianten oder Ge fäßverschlüssen der Gefäßverlauf von der normalerweise zu erwartenden Anatomie stark abweichen kann.It is known to improve visualization imaging techniques to use. As imaging techniques in the puncture are currently fluoroscopy, computed tomography or transcutaneous ultrasound for use. All processes have major disadvantages. The fluoroscopy can represent only the puncture needle and the surrounding bone structures, the vessel or organ to be punctured remains largely invisible. This may cause the puncture needle can not be directed accurately, e.g. in anatomical variants or vascular closures of vessel course from the normally expected anatomy can vary greatly.
Die Computertomographie eignet sich gut zur Darstellung von Weichteilkontrasten, jedoch haben sowohl die Computertomographie als auch die Fluoroskopie den bekannten Nachteil der Strahlenbelastung für den Patienten und sie sind in bestimmten Umgebungen wie Intensivstation und OP-Vorbereitungsraum wegen ihrer großen Aufwändigkeit nicht standardmäßig einsetzbar.The Computed tomography is well suited for visualization of soft tissue contrast, however, both computed tomography and fluoroscopy have the known disadvantage of radiation exposure to the patient and they are in certain environments such as intensive care and OR preparation room because of their big ones Effort not can be used as standard.
Der transkutane Ultraschall ist aufwandsloser anwendbar; häufig stellt es jedoch für den punktierenden Arzt ein Problem dar, die Orientierung zwischen der Nadelspitze der Punktionsnadel und dem abgebildeten Gewebe oder Gefäß zu bestimmen und entsprechend die richtige Punktionsrichtung einzuschlagen. Außerdem ist der Umgang mit einer Ultraschallsonde in einem mit sterilen Tüchern abgedeckten Gebiet (Punktionsstelle) sehr fehlerbehaftet.Of the transcutaneous ultrasound is effortlessly applicable; frequently poses However, it for the doting doctor is a problem, the orientation between the needle tip of the puncture needle and the imaged tissue or To determine vessel and accordingly to strike the correct puncture direction. Besides that is the handling of an ultrasound probe in a drape covered with sterile tissue Area (puncture site) very faulty.
Es ist Aufgabe der vorliegenden Erfindung, eine Vorrichtung, insbesondere einen Katheter, zur Punktion von Körperhöhlen, -gefäßen und -geweben eines menschlichen oder tierischen Körpers bereitzustellen, mit welchem Fehlpunktionen und/oder Fehlinjektionen vermieden werden können.It Object of the present invention, a device, in particular a catheter for the puncture of body cavities, vessels and tissues of a human or animal body to provide with which malpositions and / or misinterpretations can be avoided.
Die Aufgabe wird erfindungsgemäß gelöst durch eine Vorrichtung zur Untersuchung und zur Durchführung von Interventionen, Punktionen und Injektionen in Körperhöhlen, -gefäßen und -geweben eines menschlichen oder tierischen Körpers gemäß dem Patentanspruch 1; vorteilhafte Ausgestaltungen der Erfindung sind jeweils Gegenstand der zugehörigen Unteransprüche 2 bis 11.The The object is achieved by a device for examining and performing interventions, punctures and injections in body cavities, vessels and tissues of a human or animal body according to claim 1; advantageous Embodiments of the invention are each the subject of the dependent subclaims 2 to 11th
Durch die parallele Anordnung einer Punktionsnadel oder einer Punktionshohlnadel und eines bildgebenden Ultraschallkatheters in getrennten Lumina eines gemeinsamen Katheters kann bei der Durchführung von Punktionen, wie zum Beispiel Gefäß punktionen, Gewebepunktionen oder Injektionen, einfach und präzise das die Punktionsnadel umgebende und/oder als Punktionsziel anzusteuernde Gewebe oder Gefäß durch die Bildgebung geortet, visualisiert und identifiziert werden. Ein punktierender Arzt kann so das Punktionsziel und die richtige Punktionsrichtung erkennen und die Punktionsnadel exakt steuern und bewegen. Auf diese Weise ist die jeweilige Punktion mit großer Sicherheit durchführbar und das Risiko von Fehlpunktionen deutlich verringert.By the parallel arrangement of a puncture needle or a puncture hollow needle and an ultrasound imaging catheter in separate lumens a common catheter can be used in performing punctures, such as Example vessel punctures, Tissue functions or injections, simple and precise surrounding the puncture needle and / or as a puncture target Tissue or vessel through Imaging can be located, visualized and identified. One puncturing doctor can thus the puncture target and the correct puncture direction recognize and precisely control and move the puncture needle. To this Way is the respective puncture with great certainty feasible and the Risk of malfunction significantly reduced.
Durch die Visualisierung anatomischer Strukturen können Punktionen außerdem deutlich beschleunigt werden. Der Ultraschallkatheter selbst ist mehrmals verwendbar, da er nicht direkt mit Gewebe in Kontakt kommt; er kann aufwandslos und kostensparend aus dem Lumen des Katheter gelöst und in einen neuen Katheter eingesetzt und dort befestigt werden.By The visualization of anatomical structures can also significantly speed punctures become. The ultrasound catheter itself can be used several times, because it does not come into direct contact with tissue; he can effortlessly and cost-effectively detached from the lumen of the catheter and into a new catheter used and fixed there.
Das erste Lumen, in dem die Punktionsnadel angeordnet ist, und das zweite Lumen, in dem der Ultraschallkatheter angeordnet ist, sind zumindest teilweise und insbesondere im Bereich des distalen Endes des Katheters zueinander parallel. Dadurch wird die Zuordnung zwischen Punktionsrichtung und abgebildetem Gewebe und Gefäßen besonders einfach.The first lumen in which the puncture needle is arranged, and the second Lumen, in which the ultrasound catheter is arranged, are at least partially and in particular in the region of the distal end of the catheter parallel to each other. This will make the association between puncture direction and imaged tissue and vessels especially easy.
Anwendungsgebiete für eine erfindungsgemäße Vorrichtung sind zum Beispiel die Anästhesie, insbesondere bei der Operationsvorbereitung (Regionalanästhesie) oder auf der Intensivstation (Punktion von Körperhöhlen), aber auch andere medizinische Fachgebiete wie die Innere Medizin oder die Chirurgie, da auch hier auf der Intensivstation oder im OP tief im Körper liegende anatomische Strukturen punktiert werden müssen.Areas of application for a device according to the invention are, for example, anesthetics, in particular in the preparation of operations (regional anesthesia) or in the intensive care unit (puncture of body cavities), but also other medical procedures Specialist areas such as internal medicine or surgery, as here too in the intensive care or in the OR deep anatomical structures must be punctured.
Die Ultraschallbildgebung basiert im Allgemeinen auf der so genannten Echoimpulstechnik. Es wird ein Schallimpuls in das abzubildende Gewebe gesendet, der dort an internen Grenzflächen abhängig von deren Impedanz zum Teil reflektiert wird. Das reflektierte Echo wird aufgezeichnet und kann entsprechend dargestellt werden.The Ultrasound imaging is generally based on the so-called Echo pulse technology. It will be a sound pulse in the imaged Tissue sent there at internal interfaces depending on their impedance to Part is reflected. The reflected echo is recorded and can be displayed accordingly.
Nach einer Ausgestaltung der Erfindung ist das geschlossene Lumen derart mit einem viskoelastischen Fluid, insbesondere mit einem wasserhaltigen Gel, gefüllt, dass der Schallkopf des Ultraschallkatheters vollständig eintaucht. Durch das viskoelastische Fluid gelingt eine besonders gute Übertragung der Ultraschallimpulse in das abzubildende Gewebe. Im Fall von den Schallkopf umgebender Luft würde durch den großen Impedanzunterschied zwischen Luft und der Wand des Katheters eine starke Reflexion der Ultraschallimpulse auftreten und die Bildgebung negativ beeinflussen.To In one embodiment of the invention, the closed lumen is such with a viscoelastic fluid, in particular with a water-containing Gel, filled, that the transducer of the ultrasound catheter is completely immersed. Due to the viscoelastic fluid, a particularly good transfer of the Ultrasonic pulses into the tissue to be imaged. In the case of the transducer ambient air would pass through the big one Impedance difference between air and the wall of the catheter one strong reflection of the ultrasound pulses occur and the imaging influence negatively.
In vorteilhafter Weise weist der Ultraschallkatheter eine Funktion zur Bestimmung von Strömungsgeschwindigkeiten von Körperflüssigkeiten unter Ausnutzung des Dopplereffekts auf. Hierdurch ist die Entfernung des Katheters zu Blutgefäßen und die Art der Blutgefäße (Vene oder Arterie) bestimmbar. Mittels einer Doppler-Funktion des Ultraschallkatheters ist ein verbesserter Einblick in das umgebende Körpergewebe möglich, so dass Punktionen noch sicherer und schneller durchgeführt werden können.In Advantageously, the ultrasound catheter has a function for the determination of flow velocities of body fluids below Exploitation of the Doppler effect. This is the distance of the catheter to blood vessels and the Type of blood vessels (vein or artery). By means of a Doppler function of the ultrasound catheter is an improved insight into the surrounding body tissue possible, so that punctures are made even safer and faster can.
Nach einer weiteren Ausgestaltung der Erfindung ist die hauptsächliche Senderichtung des Ultraschalls des Ultraschallkatheters parallel zu der Punktionsrichtung der Punktionsnadel oder -hohlnadel. Dies ist besonders vorteilhaft um das als Punktionsziel anzusteuernde Gewebe oder Gefäß sichtbar zu machen.To Another embodiment of the invention is the main one Transmission direction of the ultrasound of the ultrasound catheter parallel to the puncture direction of the puncture needle or hollow needle. This is particularly advantageous to be addressed as a puncture target Tissue or vessel visible close.
Nach einer weiteren Ausgestaltung der Erfindung ist die hauptsächliche Senderichtung des Ultraschalls des Ultraschallkatheters rechtwinklig zu der Punktionsrichtung der Punktionsnadel. Hierdurch kann besonders gut das den Katheter seitlich umgebende Gewebe oder Gefäß visualisiert werden. Durch zusätzliche Drehung des Ultraschall-Katheters um die Punktionsnadel kann eine Panoramaansicht erzeugt werden, welche die Orientierung erleichtert.To Another embodiment of the invention is the main one Transmission direction of the ultrasound of the ultrasound catheter at right angles to the puncture direction of the puncture needle. This can be special well visualizes the tissue or vessel surrounding the catheter laterally become. By additional Rotation of the ultrasound catheter around the puncture needle can be a Panorama view can be generated, which facilitates the orientation.
Nach einer weiteren Ausgestaltung der Erfindung ist die Punktionsnadel oder -hohlnadel mit einem Spritzenkonnektor verbunden, so dass eine Injektion von Flüssigkeiten in das Gewebe oder eine Entnahme von Körperflüssigkeiten durchgeführt werden kann.To Another embodiment of the invention is the puncture needle or hollow needle connected to a syringe connector, so that one Injection of liquids into the tissue or a removal of body fluids can.
Zweckmäßigerweise ist die Punktionsnadel oder -hohlnadel abgestumpft oder scharf ausgebildet. Abgestumpfte Punktionsnadeln sind zum Beispiel in der Plexusanästhesie verwendbar, spitze Punktionsnadeln zum Beispiel bei der Punktion von Zysten oder Gefäßen.Conveniently, the puncture needle or hollow needle is blunted or sharp. Blunt puncture needles are, for example, in plexus anesthesia usable, pointed puncture needles, for example, in the puncture of cysts or vessels.
In vorteilhafter Weise ist der Ultraschallkatheter mittels einer Befestigung, insbesondere einem Drehverschluss, am Eingang des zweiten Lumens lösbar befestigt. Durch eine derartige lösbare Befestigung kann ein Austausch des Ultraschallkatheters besonders einfach und aufwandslos durchgeführt werden.In Advantageously, the ultrasonic catheter is by means of a fastening, in particular a rotary closure, releasably secured to the entrance of the second lumen. By such a detachable Attachment may be a replacement of the ultrasound catheter especially be carried out easily and effortlessly.
Zweckmäßigerweise für eine zusätzliche, von dem zweilumigen Katheter unabhängige Nutzbarkeit des Ultraschallkatheters weist der Ultraschallkatheter einen sterilen Überzug auf.Conveniently, for one additional, from independent of the bilumen catheter Usability of the ultrasound catheter has the ultrasound catheter a sterile coating on.
Die Erfindung sowie weitere vorteilhafte Ausgestaltungen gemäß Merkmalen der Unteransprüche werden im Folgenden anhand schematisch dargestellter Ausführungsbeispiele in der Zeichnung näher erläutert, ohne dass dadurch eine Beschränkung der Erfindung auf diese Ausführungsbeispiele erfolgt; es zeigen:The Invention and further advantageous embodiments according to features the subclaims become below with reference to schematically illustrated embodiments explained in the drawing, without that's a limitation the invention to these embodiments he follows; show it:
Das
erste geöffnete
Lumen
Das
zweite geschlossene Lumen
Das
zweite Lumen ist mit einem, vorzugsweise blasenfreien, Gel
Der
Ultraschallkatheter
Es kann auch ein Ultraschallkatheter verwendet werden, bei dem die hauptsächliche Senderichtung des Ultraschalls des Ultraschallkatheters rechtwinklig zu der Punktionsrichtung der Punktionsnadel ist. Ein Beispiel für ein Gerät mit einem seitlich gerichteten Schallkopf ist der Acuson AcuNav® von Siemens, welcher einen Durchmesser von 8 oder 10 French aufweist. Ein Katheter mit einem derartigen Ultraschallkatheter und einer Punktionsnadel kann zum Beispiel bei der Injektion von Anästhetika in der unmittelbaren Umgebung von Nerven in der Anästhesie verwendet werden. Mittels des seitlichen Schallkopfes kann während des Punktionsvorgangs die anatomische Umgebung des Katheters visualisiert werden. Durch Drehung des Katheters um das erste Lumen, insbesondere um die Achse der Punktionsnadel, kann ein Panoramabild erzeugt werden.An ultrasound catheter may also be used in which the primary transmission direction of ultrasound of the ultrasound catheter is perpendicular to the puncture direction of the puncture needle. An example of a device with a laterally directed probe is the Acuson AcuNav ® from Siemens, which has a diameter of 8 or 10 French. For example, a catheter having such an ultrasound catheter and a puncture needle can be used in the injection of anesthetics in the immediate vicinity of nerves in anesthesia. By means of the lateral transducer, the anatomical environment of the catheter can be visualized during the puncture procedure. By rotating the catheter about the first lumen, in particular about the axis of the puncture needle, a panoramic image can be generated.
Die Erfindung lässt sich in folgender Weise kurz zusammenfassen: Um das Risiko von Fehlpunktionen und Fehlinjektionen durch präzise Steuerung der Punktionsnadel zu verringern ist eine Vorrichtung zur Untersuchung und zur Durchführung von Interventionen, Punktionen und Injektionen in Körperhöhlen, -gefäßen und -geweben eines menschlichen oder tierischen Kör pers vorgesehen, welche einen Katheter mit einem distalen Ende und mit mindestens zwei wenigstens teilweise zueinander parallelen, achsenparallelen Lumina, wobei zumindest ein erstes Lumen am distalen Ende geöffnet und ein zweites Lumen am distalen Ende geschlossen ausgebildet ist, eine Punktionsnadel oder -hohlnadel, die in dem ersten, geöffneten Lumen des Katheters angeordnet ist, und einen schlauchförmigen, zur Bildgebung vorgesehenen Ultraschallkatheter, der lösbar befestigt in dem zweiten, geschlossenen Lumen des Katheters angeordnet ist, aufweist.The Invention leaves summarize briefly in the following way: To the risk of Fehlpunktionen and misdirections by precise Reducing control of the puncture needle is a device for Investigation and implementation of interventions, punctures and injections in body cavities, vessels and tissues of a human or animal Kör pers provided, which is a catheter with a distal end and at least two at least partially parallel, axis-parallel lumens, wherein at least a first lumen is opened at the distal end and a second lumen formed closed at the distal end, a puncture needle or hollow needle placed in the first, open lumen of the catheter is arranged, and a tubular, intended for imaging Ultrasonic catheter that is detachable secured in the second closed lumen of the catheter is, has.
Claims (11)
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DE102006052710A DE102006052710A1 (en) | 2006-11-08 | 2006-11-08 | Device for investigation and execution of interventions, puncture and injections in body cavities of human or animal body, has catheter with distal end and two lumens partly parallel to each other |
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DE102006052710A DE102006052710A1 (en) | 2006-11-08 | 2006-11-08 | Device for investigation and execution of interventions, puncture and injections in body cavities of human or animal body, has catheter with distal end and two lumens partly parallel to each other |
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WO2014155125A1 (en) * | 2013-03-28 | 2014-10-02 | Oxford University Hospitals Nhs Trust | Apparatus for intravascular or intraluminal deployment of a probe |
WO2015058039A1 (en) * | 2013-10-17 | 2015-04-23 | Robert Vidlund | Apparatus and methods for alignment and deployment of intracardiac devices |
CN104853685A (en) * | 2012-11-16 | 2015-08-19 | 斯皮纳产生有限责任公司 | Multichannel cannula and methods for using same |
US9254192B2 (en) | 2007-09-13 | 2016-02-09 | Georg Lutter | Truncated cone heart valve stent |
US9480559B2 (en) | 2011-08-11 | 2016-11-01 | Tendyne Holdings, Inc. | Prosthetic valves and related inventions |
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