DE102007043831A1 - Catheter has catheter body that is arranged between sections, where sections are arranged in successive manner, and hollow space that is formed with opening to penetrate catheter wall - Google Patents
Catheter has catheter body that is arranged between sections, where sections are arranged in successive manner, and hollow space that is formed with opening to penetrate catheter wall Download PDFInfo
- Publication number
- DE102007043831A1 DE102007043831A1 DE200710043831 DE102007043831A DE102007043831A1 DE 102007043831 A1 DE102007043831 A1 DE 102007043831A1 DE 200710043831 DE200710043831 DE 200710043831 DE 102007043831 A DE102007043831 A DE 102007043831A DE 102007043831 A1 DE102007043831 A1 DE 102007043831A1
- Authority
- DE
- Germany
- Prior art keywords
- catheter
- sections
- cavities
- section
- length
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2445—Annuloplasty rings in direct contact with the valve annulus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2466—Delivery devices therefor
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
Abstract
Description
Die Erfindung betrifft einen Katheter, mit einem flexiblen, entlang seiner Längserstreckung wenigstens zwei Hohlräume ausbildenden Katheterkörper. Die Erfindung betrifft insbesondere einen Katheter zur Rekonstruktion einer Herzklappe, insbesondere der Mitralklappe.The The invention relates to a catheter, with a flexible, along its longitudinal extent at least two cavities forming catheter body. The invention particularly relates a catheter for the reconstruction of a heart valve, in particular the mitral valve.
Katheter werden in einer Vielzahl von unterschiedlichen Ausbildungen zur minimal-invasiven Diagnostik und Therapie eingesetzt. Gewöhnlich weisen Katheter einen oder mehrere Hohl räume auf, in denen Flüssigkeiten zu- oder abgeleitet, oder chirurgisches Werkzeug und Transplantate geführt werden können.catheter are used in a variety of different forms minimally invasive diagnostics and therapy. Usually catheter have one or more cavities in which Liquids added or removed, or surgical tool and grafts can be performed.
Insbesondere bei der Herzklappenablation werden Katheter eingesetzt, die neben flüssigkeitsleitenden Hohlräumen gleichzeitig Hohlräume zur Aufnahme von Werkzeugen und zum Einbringen eines Herzklappenstents zum Ersatz einer fehlgebildeten oder krankhaft veränderten Herzklappe aufweisen.Especially In heart valve ablation, catheters are used which are adjacent liquid-conducting cavities at the same time Cavities for holding tools and for introducing a heart valve stent to replace a malformed or morbid have altered heart valve.
Beispielsweise wird bei Vorliegen von Erkrankungen der Mitralklappe versucht, die alte Herzklappe trotz aufgetretener Fehlfunktion weitestgehend zu erhalten, damit der gesamte dynamische Mitralklappenapparat nicht zerstört wird. Die Sehnenfäden, die an der Mitralklappe ansetzen, sind z. B. sehr wichtig für die Ventrikelfunktion und sollten daher möglichst nicht von der alten Mitralklappe losgelöst werden. Um bei Hochrisikopatienten die Herz-Lungen-Maschine und einen Eingriff am "offenen" Herzen zu vermeiden, wurden minimal-invasive, z. B. transapikale, oder perkutane Methoden zur Implantation einer Herzklappe mit Hilfe von verschiedenen Kathetersystemen entwickelt.For example is tried in the presence of diseases of the mitral valve, the old heart valve despite occurred malfunction as far as possible so that the entire dynamic mitral valve apparatus does not get gets destroyed. The tendon threads attached to the mitral valve start, z. B. very important for ventricular function and therefore should not be possible from the old mitral valve be detached. In high-risk patients, the heart-lung machine and avoiding surgery on the "open" heart, were minimally invasive, z. B. transapical, or percutaneous methods for implantation of a Heart valve developed using different catheter systems.
So
ist aus der
Eine
weitere Vorrichtung zur Befestigung und Verankerung von Herklappenprothesen
ist in der
Darüber hinaus besteht auch die Möglichkeit eine fehlgeschlagene Implantation einer Herzklappenprothese abzubrechen und den Klappenstent (d. h. die in einen Stent integrierte Klappe) wieder in das Kathetersystem (genauer die Kartusche) hineinzuziehen. Hierbei wird dann der gesamte Stent wieder zusammengefaltet und in die Katheteröffnung (Kartusche) zurückgeführt, um ihn dann nach besserer Positionierung wieder an anderer Position auszufahren.About that There is also the possibility of a failed one Implantation of a heart valve prosthesis cancel and the valve stent (i.e., the flap integrated into a stent) back into the catheter system (more precisely, the cartridge) to drag. Here then the entire Stent folded back up and into the catheter opening (Cartridge) returned to him for better Positioning again at another position.
Ein weitaus größeres Problem für die optimale Platzierung der neuen Herzklappe im Stent (bzw. Klappenstent) besteht jedoch darin, dass die alte, native Klappe in den meisten Fällen der zuvor beschriebenen Implantationstechnik nicht entfernt werden soll. Allerdings führt dieses dazu, dass die neue Klappe, die in eine alte, deformierte Klappe hineingedrückt (teilweise hineingequetscht) wird, in ihrer ursprünglichen Stentform abgewandelt wird. Dies liegt daran, dass der Implantationsort für den Klappenstent durch die Morphologie, den Zustand und die Beschaffenheit der alten nativen Klappe bestimmt wird (z. B. bei Klappensklerose oder -verkalkung der nativen Klappe).One much bigger problem for the optimal Placement of the new heart valve in the stent (or valve stent) is however, in that the old, native flap in most cases the implantation technique described above should not be removed. However, this leads to the new flap, the pressed into an old, deformed flap (partially squeezed in), in its original stent form is modified. This is because the implantation site is for the valve stent through the morphology, condition and condition the old native valve is determined (eg in flap sclerosis or calcification of the native valve).
Weiterhin
sind auch Perfusionskatheter oder aufblasbare Einheiten beschrieben,
um in kleineren oder größeren (aortalen) Gefäßen
eine isolierte Kammer zur Klappenresektion herstellen zu können:
Bei
der Herzoperation kommen spezielle Perfusionskatheter, die vom Prinzip
der Ballonkatheter (
In cardiac surgery come special perfusion catheters, which are based on the principle of balloon catheters (
Besonders wünschenswert wäre es allerdings zumindest im Fall einer Herzinsuffizienz, statt einer vollständigen oder bevorzugt teilweisen Entfernung einer fehlgebildeten oder krankhaft veränderten Herzklappe, den Klappenannulus der defekten Herzklappe des Patienten mit den dazugehörigen alten Klappenanteilen mit einfachen Mitteln so zu verändern und zu rekonstruieren, dass die Insuffizienz der Klappe beseitigt werden kann.However, it would be particularly desirable, at least in the case of heart failure, instead of a complete or preferably partial removal of a malformed or pathologically altered heart valve, the valve annulus of the defective heart valve of the patient with the associated old parts of the valve with simple means to change and reconstruct that the insufficiency of the Flap can be eliminated.
Aufgabe der Erfindung ist es daher, einen Katheter zu schaffen, der mit einfachen Mitteln eine Rekonstruktion von Gefäßquerschnitten, insbesondere die Rekonstruktion einer insuffizienten Herzklappe ermöglicht.task The invention therefore is to provide a catheter, which with simple means a reconstruction of vessel cross-sections, in particular the reconstruction of an insufficient heart valve allows.
Die Aufgabe wird erfindungsgemäß durch den Katheter mit den Merkmalen von Anspruch 1 gelöst. Die Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung wieder.The The object is achieved by the catheter solved with the features of claim 1. The dependent claims give advantageous embodiments of the invention again.
Der Erfindung liegt der Gedanke zugrunde, einen Katheter abschnittsweise derart auszubilden, dass sich der flexible Katheter im Wesentlichen ringförmig um eine zu rekonstruierende Struktur, beispielsweise eine Herzklappe, legen und an dieser dauerhaft fixiert werden kann, wobei die einzelnen Abschnitte des Katheters in ihrer Länge veränderbar sind, sodass die Anatomie des Gefäßes/der Klappe verändert und damit eine Änderung des Querschnitts des betroffenen Gefäßes erreicht und z. B. so eine Herzklappeninsuffizienz beseitigt werden kann.Of the The invention is based on the idea of a catheter in sections such that the flexible catheter substantially ring around a structure to be reconstructed, for example a heart valve, lay and can be permanently fixed to this, with the individual sections of the catheter in their length are changeable, so that the anatomy of the vessel / Flap changed and thus a change in the cross section of the reached affected vessel and z. B. such a heart valve insufficiency can be eliminated.
Entscheidend ist also, dass durch den erfindungsgemäßen Katheter der native Annulus an den richtigen Stellen/in den richtigen Abschnitten des ringförmig ausgebildeten Katheters zusammengezogen werden kann. Ebenso wichtig ist dabei auch die optimale Fixierung des Kathers am Gewebe.critical So is that through the catheter of the invention the native annulus in the right places / sections of the annular catheter contracted can be. Equally important is the optimal fixation Kather's on the fabric.
Hierzu
weist der erfindungsgemäße Katheter zur Klappenrekonstruktion
besondere Fixationselemente auf, die den Katheter, ähnlich
der in der
Um eine dauerhafte und stabile Rekonstruktion des Gefäßquerschnitts zu ermöglichen, die auch mit minimal-invasiven Techniken durchführbar sein sollte, bildet der erfindungsgemäße Katheter einen faltbaren, repositionierbaren, zu einem Klappenring ausbildbaren Katheter mit besonders flexibler Form und Struktur, der mittels Strukturen zum Ansaugen an den Herzklappenring fixiert werden kann. Der Katheter wird perkutan oder transapikal mittels eines Hüllkatheters oder durch ein dem Herzen angrenzendes, großes Gefäß in eine Herzkammer eingeführt und dort entfaltet. Seine Fixationselemente werden so justiert, dass sich zum einen eine optimale Fixation ergibt und zum anderen durch in ihrer Länge unterschiedlich auszubildende Abschnitte im bevorzugt ringförmig angeordneten Katheter auch die native Annuluskonfiguration rekonstruiert und optimiert werden kann.Around a permanent and stable reconstruction of the vessel cross section to enable that too with minimally invasive techniques should be feasible forms the inventive Catheter a foldable, repositionable, formable to a flap ring Catheter with a particularly flexible shape and structure, by means of Structures for sucking on the heart valve ring can be fixed. The catheter is percutaneously or transapically by means of a tunneled catheter or by a large vessel adjacent to the heart introduced a heart chamber and unfolded there. His fixation elements are adjusted so that on the one hand results in an optimal fixation and on the other by different lengths to be trained in their length Sections in the preferably annularly arranged catheter also reconstructed and optimized the native annulus configuration can be.
Die Erfindung wird anhand von in den Zeichnungen dargestellter bevorzugter Ausführungsbeispiele näher erläutert. Es zeigen:The Invention will be more apparent from the illustrated in the drawings Embodiments explained in more detail. Show it:
Der
Katheter
In
Jeder durch eine Schleuse
Everyone through a lock
Bevorzugt
sind die Schleusen jedoch nur durch besondere im Katheterträger
Das
Element
Die
Elemente
Zusätzlich
kann im Katheter
Durch
die jeweilige Längenänderungen der Abschnitte
Eine
weitere Möglichkeit besteht darin (nicht dargestellt),
dass es nur ein Element
Sollte
es, wie oben bereits bemerkt, technisch schwierig sein, allein durch
die Poren
Nach
einer weiteren, in
Durch
diese Ausbildung ist es möglich, den Stent S mittels des
oben für den Katheter
Obwohl
vorstehend ausschließlich anhand der Ausbildung des Katheters
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19546692 C2 [0005] - DE 19546692 C2 [0005]
- - EP 1469797 B1 [0005, 0006] - EP 1469797 B1 [0005, 0006]
- - DE 10010074 A1 [0006] - DE 10010074 A1 [0006]
- - DE 19533601 [0009] - DE 19533601 [0009]
- - US 6135981 [0009] US 6135981 [0009]
- - US 5423745 [0009] - US 5423745 [0009]
- - DE 10217559 [0009] - DE 10217559 [0009]
- - DE 2005/000437 [0015] - DE 2005/000437 [0015]
- - WO 00/74574 A1 [0015] WO 00/74574 A1 [0015]
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE200710043831 DE102007043831B4 (en) | 2007-09-13 | 2007-09-13 | catheter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710043831 DE102007043831B4 (en) | 2007-09-13 | 2007-09-13 | catheter |
Publications (2)
Publication Number | Publication Date |
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DE102007043831A1 true DE102007043831A1 (en) | 2009-04-02 |
DE102007043831B4 DE102007043831B4 (en) | 2009-07-02 |
Family
ID=40384034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE200710043831 Expired - Fee Related DE102007043831B4 (en) | 2007-09-13 | 2007-09-13 | catheter |
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Country | Link |
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DE (1) | DE102007043831B4 (en) |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010091653A1 (en) * | 2009-02-11 | 2010-08-19 | Georg Lutter | Catheter |
EP2351540A1 (en) * | 2010-01-27 | 2011-08-03 | Jönsson, Anders | Device and method for reducing cardiac valve regurgitation |
WO2012158189A1 (en) * | 2011-05-17 | 2012-11-22 | Boston Scientific Scimed, Inc. | Annuloplasty ring with anchors fixed by curing polymer |
WO2013017359A1 (en) * | 2011-08-03 | 2013-02-07 | Aeeg Ab | Delivery device for medical implant and medical procedure |
US8747462B2 (en) | 2011-05-17 | 2014-06-10 | Boston Scientific Scimed, Inc. | Corkscrew annuloplasty device |
US8814932B2 (en) | 2011-05-17 | 2014-08-26 | Boston Scientific Scimed, Inc. | Annuloplasty ring with piercing wire and segmented wire lumen |
US9610159B2 (en) | 2013-05-30 | 2017-04-04 | Tendyne Holdings, Inc. | Structural members for prosthetic mitral valves |
US9675454B2 (en) | 2012-07-30 | 2017-06-13 | Tendyne Holdings, Inc. | Delivery systems and methods for transcatheter prosthetic valves |
US9730792B2 (en) | 2007-09-13 | 2017-08-15 | Georg Lutter | Truncated cone heart valve stent |
US9827092B2 (en) | 2011-12-16 | 2017-11-28 | Tendyne Holdings, Inc. | Tethers for prosthetic mitral valve |
US9833315B2 (en) | 2011-08-11 | 2017-12-05 | Tendyne Holdings, Inc. | Prosthetic valves and related inventions |
US9895221B2 (en) | 2012-07-28 | 2018-02-20 | Tendyne Holdings, Inc. | Multi-component designs for heart valve retrieval device, sealing structures and stent assembly |
US9986993B2 (en) | 2014-02-11 | 2018-06-05 | Tendyne Holdings, Inc. | Adjustable tether and epicardial pad system for prosthetic heart valve |
US10201419B2 (en) | 2014-02-05 | 2019-02-12 | Tendyne Holdings, Inc. | Apparatus and methods for transfemoral delivery of prosthetic mitral valve |
US10226334B2 (en) | 2008-05-01 | 2019-03-12 | Edwards Lifesciences Corporation | Method for replacing mitral valve |
US10327894B2 (en) | 2015-09-18 | 2019-06-25 | Tendyne Holdings, Inc. | Methods for delivery of prosthetic mitral valves |
US10363135B2 (en) | 2013-10-29 | 2019-07-30 | Tendyne Holdings, Inc. | Apparatus and methods for delivery of transcatheter prosthetic valves |
US10463494B2 (en) | 2013-04-02 | 2019-11-05 | Tendyne Holdings, Inc. | Prosthetic heart valve and systems and methods for delivering the same |
US10463489B2 (en) | 2013-04-02 | 2019-11-05 | Tendyne Holdings, Inc. | Prosthetic heart valve and systems and methods for delivering the same |
US10470877B2 (en) | 2016-05-03 | 2019-11-12 | Tendyne Holdings, Inc. | Apparatus and methods for anterior valve leaflet management |
US10478293B2 (en) | 2013-04-04 | 2019-11-19 | Tendyne Holdings, Inc. | Retrieval and repositioning system for prosthetic heart valve |
US10517728B2 (en) | 2014-03-10 | 2019-12-31 | Tendyne Holdings, Inc. | Devices and methods for positioning and monitoring tether load for prosthetic mitral valve |
US10555718B2 (en) | 2013-10-17 | 2020-02-11 | Tendyne Holdings, Inc. | Apparatus and methods for alignment and deployment of intracardiac devices |
US10595996B2 (en) | 2013-06-25 | 2020-03-24 | Tendyne Holdings, Inc. | Thrombus management and structural compliance features for prosthetic heart valves |
US10610356B2 (en) | 2015-02-05 | 2020-04-07 | Tendyne Holdings, Inc. | Expandable epicardial pads and devices and methods for delivery of same |
US10610354B2 (en) | 2013-08-01 | 2020-04-07 | Tendyne Holdings, Inc. | Epicardial anchor devices and methods |
US10610358B2 (en) | 2015-12-28 | 2020-04-07 | Tendyne Holdings, Inc. | Atrial pocket closures for prosthetic heart valves |
US10667905B2 (en) | 2015-04-16 | 2020-06-02 | Tendyne Holdings, Inc. | Apparatus and methods for delivery, repositioning, and retrieval of transcatheter prosthetic valves |
US10786351B2 (en) | 2015-01-07 | 2020-09-29 | Tendyne Holdings, Inc. | Prosthetic mitral valves and apparatus and methods for delivery of same |
US11039921B2 (en) | 2016-06-13 | 2021-06-22 | Tendyne Holdings, Inc. | Sequential delivery of two-part prosthetic mitral valve |
US11065116B2 (en) | 2016-07-12 | 2021-07-20 | Tendyne Holdings, Inc. | Apparatus and methods for trans-septal retrieval of prosthetic heart valves |
US11090157B2 (en) | 2016-06-30 | 2021-08-17 | Tendyne Holdings, Inc. | Prosthetic heart valves and apparatus and methods for delivery of same |
US11096782B2 (en) | 2015-12-03 | 2021-08-24 | Tendyne Holdings, Inc. | Frame features for prosthetic mitral valves |
US11154399B2 (en) | 2017-07-13 | 2021-10-26 | Tendyne Holdings, Inc. | Prosthetic heart valves and apparatus and methods for delivery of same |
US11179236B2 (en) | 2009-12-08 | 2021-11-23 | Colorado State University Research Foundation | Device and system for transcatheter mitral valve replacement |
US11191639B2 (en) | 2017-08-28 | 2021-12-07 | Tendyne Holdings, Inc. | Prosthetic heart valves with tether coupling features |
US11224510B2 (en) | 2013-04-02 | 2022-01-18 | Tendyne Holdings, Inc. | Prosthetic heart valve and systems and methods for delivering the same |
US11648114B2 (en) | 2019-12-20 | 2023-05-16 | Tendyne Holdings, Inc. | Distally loaded sheath and loading funnel |
US11648110B2 (en) | 2019-12-05 | 2023-05-16 | Tendyne Holdings, Inc. | Braided anchor for mitral valve |
US11678980B2 (en) | 2020-08-19 | 2023-06-20 | Tendyne Holdings, Inc. | Fully-transseptal apical pad with pulley for tensioning |
US11951002B2 (en) | 2020-03-30 | 2024-04-09 | Tendyne Holdings, Inc. | Apparatus and methods for valve and tether fixation |
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US9486306B2 (en) | 2013-04-02 | 2016-11-08 | Tendyne Holdings, Inc. | Inflatable annular sealing device for prosthetic mitral valve |
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US6602288B1 (en) * | 2000-10-05 | 2003-08-05 | Edwards Lifesciences Corporation | Minimally-invasive annuloplasty repair segment delivery template, system and method of use |
US20050107811A1 (en) * | 2002-06-13 | 2005-05-19 | Guided Delivery Systems, Inc. | Delivery devices and methods for heart valve repair |
-
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- 2007-09-13 DE DE200710043831 patent/DE102007043831B4/en not_active Expired - Fee Related
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Cited By (82)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10456248B2 (en) | 2007-09-13 | 2019-10-29 | Georg Lutter | Truncated cone heart valve stent |
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