DE4421920A1 - Instrument (catheter) for producing an enclosed cavity inside a vessel as protection against embolism during percutaneous, transluminal recanalisation of vessels - Google Patents

Instrument (catheter) for producing an enclosed cavity inside a vessel as protection against embolism during percutaneous, transluminal recanalisation of vessels

Info

Publication number
DE4421920A1
DE4421920A1 DE19944421920 DE4421920A DE4421920A1 DE 4421920 A1 DE4421920 A1 DE 4421920A1 DE 19944421920 DE19944421920 DE 19944421920 DE 4421920 A DE4421920 A DE 4421920A DE 4421920 A1 DE4421920 A1 DE 4421920A1
Authority
DE
Germany
Prior art keywords
vessel
vessels
catheter
protection against
instrument
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.)
Withdrawn
Application number
DE19944421920
Other languages
German (de)
Inventor
Marcus Rebel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19944421920 priority Critical patent/DE4421920A1/en
Publication of DE4421920A1 publication Critical patent/DE4421920A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22001—Angioplasty, e.g. PCTA

Abstract

Instrument (catheter) for producing an enclosed cavity inside a vessel as protection against embolism during percutaneous, transluminal recanalisation (PTR) of vessels. Protection against embolism during PTR is impossible with the instruments available so far. The catheter permits sealing of the constricted vascular section from the blood stream by means of two inflatable balloons and flushing by means of the flushing and suction channels. The catheter permits, then, the material detached or removed from the vascular wall during PTR to be aspirated, so that this material can no longer cause any embolism.

Description

STAND DER TECHNIKSTATE OF THE ART

Die bisherige Vorgehensweise zur Entfernung von gefäß­ verengendem Material ist entweder ein chirurgischer Zugang von außen oder mittels der perkutanen, transluminalen Rekanalisation mittels Ballonkatheter oder anderer physikalisch-mechanischer Methoden. Die bisher entwickelten Instrumente für die perkutane transluminale Rekanalisation von Gefäßen erlauben es nicht sicher, das bei der Beseitigung der Gefäßverengung anfallende Material sicher aus dem Gefäß zu entfernen.The previous procedure for removing vascular narrowing material is either a surgical approach from the outside or by means of the percutaneous, transluminal Recanalization using a balloon catheter or other physical-mechanical methods. The previously developed Instruments for percutaneous transluminal recanalization of vessels do not allow it to be safely removed material from the vasoconstriction safely out of the vessel to remove.

PROBLEMPROBLEM

Bei der Entfernung von gefäßverengendem Material ist es möglich, daß sich kleine oder größere Teile des zu entfernenden Materials lösen und mit dem Blutstrom in Gefäßbereiche geschwemmt werden, in denen der Durchmesser der Blutgefäße geringer ist, so daß es zu einem totalen oder subtotalen Verschluß dieses Gefäßes (bzw. der Gefäße) kommt (Embolie). Vor allem bei den gehirnversorgenden Gefäßen ist eine solche Embolisierung unbedingt zu vermeiden. Analog gilt dies natürlich auch für alle anderen Organe.It is when removing vasoconstrictive material possible that small or large parts of the dissolve removing material and with the bloodstream in Vessel areas in which the diameter of the Blood vessels is lower, making it a total or subtotal occlusion of this vessel (or vessels) (Embolism). Especially with the brain supplying vessels to avoid such embolization. The same applies analogously this of course also for all other organs.

LÖSUNGSOLUTION

Durch das im Patentantrag beschriebene Instrument, welches speziell für die perkutane, transluminale Rekanalisation von Gefäßen entwickelt wurde, ist es durch die vorübergehende Schaffung eines abgeschlossenen, spül- und absaugbaren Gefäßbereiches möglich, physikalisch-mechanisch oder chemisch das gefäßverengende Material zu entfernen bzw. das Lumen des Gefäßes zu erweitern, ohne daß wie bisher die akute Gefahr besteht, durch gelöstes Material eine Embolie zu verursachen.By the instrument described in the patent application, which especially for percutaneous, transluminal recanalization of Vessels was developed, it is temporary Creation of a closed, flushable and vacuumable Vessel area possible, physical-mechanical or to chemically remove the vasoconstrictive material or the Lumen of the vessel to expand without the acute as before There is a risk of embolism due to loosened material cause.

ERREICHTE VORTEILEADVANTAGES ACHIEVED

Durch die Erfindung ist es nun möglich, Gefäße mittels physikalischer, mechanischer oder chemischer Methoden zu rekanalisieren, die bisher aus Sicherheitsgründen nicht perkutan transluminal rekanalisiert werden konnten.The invention now makes it possible to use vessels physical, mechanical or chemical methods re-channelize that so far not for security reasons could be recanalized percutaneously transluminally.

BESCHREIBUNG - AUSFÜHRUNGSBEISPIELDESCRIPTION - EMBODIMENT

Das im Patentantrag beschriebene Instrument ermöglicht es, Manipulationen an pathologisch veränderten Gefäßwänden vorzunehmen, ohne daß die Gefahr einer Verschleppung von gelöstem Material durch den Blutstrom in distale Gefäßabschnitte besteht. Das Instrument wird perkutan transluminal eingebracht und bis zu der entsprechenden Gefäßverengung vorgeschoben, wo es so positioniert wird, daß die Gefäßverengung zwischen dem distalen und dem proximalen Abdichtballon zu liegen kommt. Nun werden die Abdichtballons insuffliert, der Innenbereich ist vom Blutstrom abgeschlossen und kann durch die Spül/Saugkanäle gespült werden. Gelöstes Material kann nun auch über den Absaugkanal aus dem abgedichteten Gefäßbereich entfernt werden. Durch den im Unterantrag beschriebenen Verbindungskanal zwischen den distal und proximal der Abdichtung gelegenen Gefäßabschnitten ist ein, wenn auch reduzierter, Blutfluß während der Zeit der Manipulation gewährleistet.The instrument described in the patent application enables Manipulations on pathologically altered vessel walls to be carried out without the risk of being carried over by dissolved material through the bloodstream into the distal Vascular sections exist. The instrument becomes percutaneous introduced transluminally and up to the corresponding Vascular narrowing advanced where it is positioned so that the narrowing of the vessels between the distal and the proximal Sealing balloon comes to rest. Now the sealing balloons insufflated, the interior is closed off from the blood stream and can be flushed through the rinsing / suction channels. Solved Material can now also be removed from the suction channel sealed vessel area can be removed. Through the im Sub-application described connecting channel between the Vascular sections located distal and proximal to the seal is a, albeit reduced, blood flow during the period of the Manipulation guaranteed.

Claims (2)

1. Instrument (Katheter) zur Schaffung eines abgeschlossenen Hohlraumes innerhalb eines Gefäßes zum Schutz vor Embolien bei der perkutanen transluminalen Rekanalisation von Gefäßen; dadurch gekennzeichnet, daß zwei aufblasbare Ballons einen dichten Zwischenraum bilden, in dem durch physikalisch- mechanische oder chemische Methoden die Gefäßwand­ veränderungen entfernt werden können. Das entfernte Material wird aus dem abgedichteten Zwischenraum mittels einer Spül/Saugvorrichtung abgesaugt und verbleibt somit nicht mehr wie bisher in den Gefäßen und kann deshalb auch keine Embolien verursachen.1. Instrument (catheter) for creating a closed cavity within a vessel for protection against embolisms in the percutaneous transluminal recanalization of vessels; characterized in that two inflatable balloons form a tight space in which the vessel wall changes can be removed by physical-mechanical or chemical methods. The removed material is sucked out of the sealed space by means of a rinsing / suction device and therefore no longer remains in the vessels as before and therefore cannot cause embolisms. 2. Instrument nach Anspruch 1, dadurch gekennzeichnet, daß eine Verbindung der distal und proximal des abgedichteten Gefäßbereiches liegenden Gefäßabschnitte besteht, womit ein vollständiger Verschluß des Gefäßes während der Zeit der Manipulation vermieden wird.2. Instrument according to claim 1, characterized in that connecting the distal and proximal of the sealed Vascular region lying vessel sections, with which complete closure of the vessel during the period of Manipulation is avoided.
DE19944421920 1994-06-28 1994-06-28 Instrument (catheter) for producing an enclosed cavity inside a vessel as protection against embolism during percutaneous, transluminal recanalisation of vessels Withdrawn DE4421920A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19944421920 DE4421920A1 (en) 1994-06-28 1994-06-28 Instrument (catheter) for producing an enclosed cavity inside a vessel as protection against embolism during percutaneous, transluminal recanalisation of vessels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944421920 DE4421920A1 (en) 1994-06-28 1994-06-28 Instrument (catheter) for producing an enclosed cavity inside a vessel as protection against embolism during percutaneous, transluminal recanalisation of vessels

Publications (1)

Publication Number Publication Date
DE4421920A1 true DE4421920A1 (en) 1995-01-26

Family

ID=6521285

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19944421920 Withdrawn DE4421920A1 (en) 1994-06-28 1994-06-28 Instrument (catheter) for producing an enclosed cavity inside a vessel as protection against embolism during percutaneous, transluminal recanalisation of vessels

Country Status (1)

Country Link
DE (1) DE4421920A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535781A1 (en) * 1995-09-26 1997-03-27 Fraunhofer Ges Forschung System for active flow support of body fluids
US8162879B2 (en) 2008-09-22 2012-04-24 Tyco Healthcare Group Lp Double balloon catheter and methods for homogeneous drug delivery using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535781A1 (en) * 1995-09-26 1997-03-27 Fraunhofer Ges Forschung System for active flow support of body fluids
DE19535781C2 (en) * 1995-09-26 1999-11-11 Fraunhofer Ges Forschung Device for active flow support of body fluids
US6508787B2 (en) 1995-09-26 2003-01-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. System for actively supporting the flow of body fluids
US8162879B2 (en) 2008-09-22 2012-04-24 Tyco Healthcare Group Lp Double balloon catheter and methods for homogeneous drug delivery using the same
US8603064B2 (en) 2008-09-22 2013-12-10 Covidien Lp Double balloon catheter and methods for homogeneous drug delivery using the same

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
8139 Disposal/non-payment of the annual fee