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DE2005112B2 - IMPLANT FOR SURGICAL CORRECTION OF VALVE FAULTS - Google Patents

IMPLANT FOR SURGICAL CORRECTION OF VALVE FAULTS

Info

Publication number
DE2005112B2
DE2005112B2 DE19702005112 DE2005112A DE2005112B2 DE 2005112 B2 DE2005112 B2 DE 2005112B2 DE 19702005112 DE19702005112 DE 19702005112 DE 2005112 A DE2005112 A DE 2005112A DE 2005112 B2 DE2005112 B2 DE 2005112B2
Authority
DE
Germany
Prior art keywords
ring
implant
mitral
valve
heart valve
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
Application number
DE19702005112
Other languages
German (de)
Other versions
DE2005112A1 (en
DE2005112C3 (en
Inventor
Alain Paris Carpentier
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.)
American Hospital Supply Corp
Original Assignee
Rhone Poulenc SA
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
Priority claimed from FR6902441A external-priority patent/FR2031699A5/fr
Priority claimed from FR6944124A external-priority patent/FR2071172A6/fr
Application filed by Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of DE2005112A1 publication Critical patent/DE2005112A1/en
Publication of DE2005112B2 publication Critical patent/DE2005112B2/en
Application granted granted Critical
Publication of DE2005112C3 publication Critical patent/DE2005112C3/en
Expired legal-status Critical Current

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
    • A61F2/2448—D-shaped rings

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Coloring (AREA)

Description

3 43 4

Ein erfindungsgemäßes Implantat kann aus prak- Zwischen die genannten Fäden 10 und 11 legtAn implant according to the invention can be made of prak between the said threads 10 and 11

tisch sämtlichen inerten Materialien bestehen, die der man auf die gleiche Weise und um den gesamtentable all inert materials are made in the same way and around the whole

Organismus verträgt und die eine ausreichende Umfang des Mitralringes an die Basis der VentileOrganism tolerates and which a sufficient circumference of the mitral ring to the base of the valves

Widerstandsfähigkeit aufweisen. Rostfreier Stahl und und unmittelbar darüber 20 Fäden, die ebenso viele,Have resilience. Stainless steel and and immediately above it 20 threads, which are just as many,

Polytetrafluoräthylen sind hier lediglich als Beispiele 5 genau im gleichen Abstand zueinander liegendePolytetrafluoroethylene are here only as examples 5 which are exactly the same distance from one another

angegeben. An Stelle von Polytetrafluoräthylen kann Punkte bilden. Darauf führt man die Fäden durchspecified. Instead of polytetrafluoroethylene, dots can be formed. The threads are then carried out

insbesandere ebenfalls Polyäthylenglykolterephthalat das Band des Implantats, wobei die Spreizung der Fa-insbesandere also polyethylene glycol terephthalate the band of the implant, whereby the spreading of the fa-

verwendet werden. den genau gleich ist derjenigen der Fäden am großenbe used. which is exactly the same as that of the threads on the largest

Bei einem Implantat in Form eines offenen Rin- Ventil und gegenüber derjenigen der Fäden am klei-In the case of an implant in the form of an open Rin valve and opposite that of the threads on the small

ges 1 (Fig. 5) ist dieser für eine dichte Auflage auf io nen Ventil 13 verringert ist.ges 1 (Fig. 5), this is reduced for a tight fit on io NEN valve 13.

der Basis der Ventile leicht abgeplattet. Er ist über Darauf wird das Implantat längs der Fäden gegenthe base of the valves slightly flattened. He is about to put the implant along the threads against it

eine Länge zwischen im allgemeinen einem Viertel den Mitralring geschoben und durch Verknüpfen dera length between generally a quarter slid the mitral ring and tied it together

und der Hälfte seines Umfanges offen. Diese Länge Fäden festgelegt. Die Knoten sind praktisch nichtand half of its size open. This length of threads set. The knots are practically nonexistent

entspricht im wesentlichen der Länge der Ventilba- sichtbar, und das Implantat ragt kaum vor, so daß siecorresponds essentially to the length of the valve ba-visible, and the implant hardly protrudes so that it

«is, die frei spielen soll. Der in den F i g. 5 und 6 ge- 15 durch das benachbarte organische Gewebe schnell«Is that should play freely. The in the F i g. 5 and 6 ge 15 rapidly through the adjacent organic tissue

zeigte Ring ist über etwa ein Drittel seines Umfan- abgedeckt und darin eingebettet werden kann,shown ring is covered over about a third of its circumference and can be embedded in it,

ges offen. Diese Länge entspricht im wesentlichen Das chirurgische Verfahren zur Anbringung desges open. This length corresponds essentially to the surgical procedure for attaching the

der Länge der Basis des großen Ventils 12. Der Ring offenen Ringes ist ähninh dem oben beschriebenenthe length of the base of the large valve 12. The open ring ring is similar to that described above

legt sich ebenfalls dicht an die Basis des kleinen Verfahren.also lies close to the basis of the small procedure.

Ventils 13 an und läßt ein freies Spiel des großen ao Das beschriebene Implantat gestattet es, Mitralin-Valve 13 and allows free play of the large ao. The implant described allows mitraline-

Ventils zu. suffizienzen beispielsweise auf Grund einer Einzie-Valve closed. sufficiency, for example due to a withdrawal

Die Enden 14 und 15 des Ringes sind abgerundet, hung des großen Ventils, einer öffnung der Verbinum das Gewebe, in das sie eingesetzt sind, nicht zu dungsbogen, einer übermäßigen Ausdehnung des Beverletzen, festigungsbereiches des kleinen Ventils usw. zu be-The ends 14 and 15 of the ring are rounded, hung of the large valve, an opening in the verb the tissue in which they are inserted does not cause an excessive expansion of the injury, fastening area of the small valve etc.

Das Profil des Ringes ist ähnlich dem oben für den 25 handeln. Sie gestattet es ferner, nach einei Commis-The profile of the ring is similar to the one above for the 25 act. It also allows, after a commission

geschlossenen Ring beschriebenen (F i g. 2). Es be- surotomie, eine Mündungsverengung auf Grund einerclosed ring (Fig. 2). Es surotomy, a constriction of the mouth due to a

sitzt eine nach außen gewölbte Kehle, wobei der un- Faserfusion der Commissuren zu behandeln,sits an outwardly curved throat, whereby the un- fibrous fusion of the commissures is to be treated,

tere Rand, der auf dem Mitialring aufliegt, eben ist Das erfindungsgemäße Implantat weist neben ih-tere edge, which rests on the mitial ring, is flat.

und der obere Rand ein rundes Profil aufweist. Im rem einfachen Aufbau und ihrer sicheren Anwen-and the upper edge has a round profile. With its simple structure and its safe use

Inneren der Kehle befindet sich ein dicker Faden aus 30 dung zahlreiche weitere Vorteile auf. Auf Grund sei-Inside the throat there is a thick thread of dung with numerous other advantages. Because of his-

Polytetrafluoräthylen oder Polyäthylenglyk^ltere- ner besonderen Form können die Herzklappenele-Polytetrafluoroethylene or polyethylene glycol of a special form can affect the heart valve elements

phthalat, die ein Nähband im Inneren des Teils hai- mente beibehalten und in ihre Lage zurückgebrachtphthalate, which kept a sewing tape inside the part and put it back in place

ten, nachdem sie zwischen den beiden Enden 14 und werden sowie verschiedene Anomalien korrigiertafter being corrected between the two ends 14 and 14 as well as various anomalies

15 des Ringes gespannt sind. Dazu weisen die Enden werden. Beispielsweise ist es möglich, das große15 of the ring are stretched. To do this, the ends will be instructed. For example, it is possible to do the big one

des Ringes Löcher auf. Der Faden wird zwischen 35 Ventil in seine Lage zurückzubringen und zu vergrö-the ring's holes. The thread will be brought back into its position between the valve and enlarged.

diesen Löchern gezogen, beiderseits derselben so ge- ßern sowie die Commissuren neu zu modellierenThese holes were drawn, so enlarged on both sides, and the commissures were remodeled

schmolzen, daß Verdickungen entstehen, und ent- und das kleine Ventil zu verkleinern. Ferner könnenmelted so that thickenings arise, and un- and shrink the small valve. Furthermore can

spannt. die Ventile in einer Mitralöffnung mit normalertense. the valves in a mitral orifice with normal

Das beschriebene Mitralimplantat, beispielsweise Oberfläche miteinander in Berührung gebracht wer-The mitral implant described, for example, surface to be brought into contact with one another

der geschlossene Ring, wird nach dem im folgenden 40 den. Im Fall eines offenen Ringes erlaubt es das freiethe closed ring, according to the following 40 den. In the case of an open ring, it allows the free

beschriebenen chirurgischen Verfahren (F i g. 3) zwi- Spiel eines der Ventile einor Herzklappe, insbeson-described surgical procedure (F i g. 3) between game one of the valves of a heart valve, in particular

schen dem linken Herzverhof und der linken Herz- dere des großen Ventils in der Mitralklappe. Wegenbetween the left atrium and the left cardiac vein of the large valve in the mitral valve. Because

kammer eingesetzt. des starren Ringes können ferner die Zugkräfte aufchamber used. of the rigid ring can also affect the tensile forces

Zunächst werden die Verschiebung des Mitralrin- eine große Anzahl von Punkten verteilt werden, so ges, die ausreichende Nachgiebigkeit der Ventile, das 45 daß einer Sekundärerweiterung des Mitralringes entausreichende S^iel des großen Ventils und die Seh- gegengewirkt wird. Schließlich kann es wegen der genenverankerungen des großen Ventils hinsichtlich webten Hülle, auf der de·· Faserstoff anhaften kann, Verletzungen überprüft. schnell in das Gewebe eingesetzt werden und erfor-First, the displacement of the mitral ring- a large number of points will be distributed so ges, the sufficient resilience of the valves, the 45 that a secondary expansion of the mitral ring is sufficient S ^ iel of the great valve and the visually counteracted. After all, it may be because of the genetic anchoring the large valve with regard to the woven cover on which the fiber material can adhere, Injuries checked. can be quickly inserted into the tissue and

An den äußeren Enden des großen Ventils 12 dert keine weitere Behandlung mit Antikoagulantien,At the outer ends of the large valve 12 no further treatment with anticoagulants changes,

werden zwei geeignete Nähfaden 10 und 11 mittels 50 und es besteht keine Gefahr einer Thrombose,two suitable sutures 10 and 11 are made by means of 50 and there is no risk of thrombosis,

einer Nadel, die in den Mitralring eingestochen wird, Das eifindungsgemäße Implantat kann außer alsa needle that is inserted into the mitral ring, the implant according to the invention can except as

U-förmig und parallel zu diesem angeordnet. Die Mitralprothese auch für andere Herzklappen verwen-U-shaped and arranged parallel to this. The mitral prosthesis can also be used for other heart valves.

Spreizung dieser beiden Fäden entspricht der Breite det werden. So ist es beispielsweise möglich, es beiSpreading of these two threads corresponds to the width det. For example, it is possible to use

des abgeplatteten Bereiches 2 des ringförmigen Im- der Tricuspidalklappe, wobei der Ring kreisförmigof the flattened area 2 of the ring-shaped im- the tricuspid valve, the ring being circular

plantats. Diese Spreizung gestattet es, die Abmessung 55 ist, oder bei der Aortenklappe zu verwenden, wobeiplantats. This spread allows the dimension 55 to be used, or in the case of the aortic valve, wherein

des Implantats entsprechend dei jeweiligen öffnung der Ring die dreiblättrige Form der Aortenklap-of the implant according to the respective opening of the ring the three-leaved shape of the aortic valve

zü bestimmen. , pen,-Myndüjag; nachahmt ,. . ;to determine. , pen, -Myndüjag; imitates,. . ;

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (3)

1 2 Blut zuverlässig verhindert und Sekundärerweiterun- Patentanspriiche: gen entgegengewirkt wird. Es wurde nun gefunden, daß dies durch ein Im-1 2 prevents blood reliably and counteracts secondary extensions. It has now been found that this 1. Implantat zur chirurgischen Korrektur von plantat erreicht werden kann.1. Implant can be achieved for surgical correction of plantat. Herzklappenfehlern, dadurch gekenn- 5 Die vorliegende Erfindung betrifft also ein Imzeichnet, daß es aus einem im wesentlichen plantat zur chirurgischen Korrektur von Herzklapringförmigen starren Teil (3), der der Basis der penfehlern, das dadurch gekennzeichnet ist, daß es aus Herzventilklappen angepaßt ist und der mit einer einem im wesentlichen ringförmigen starren Teil 3, Kehle versehen ist, deren Ränder (4, 5) unter- der der Basis der Herzventilklappen angepaßt ist und schiedlich breit sind und deren Höhlung nach io der mit einer Kehle versehen ist, deren Ränder 4,5 außen gerichtet ist, und aus einem in der Kehle unterschiedlich breit sind und deren Höhlung nach angeordneten Nähband (6) besteht, wobei der außen gerichtet ist, und aus einem in der Kehle anstarre Teil (3) und das Nähband (6) vollständig geordneten Nähband 6 besteht, wobei der starre mit einer Hülle (7) aus Textilgeweben überzogen Teil 3 und das Nähband 6 vollständig mit einer sind. i5 Hülle 7 aus Textilgeweben überzogen sind.Heart valve defects, characterized in that it consists of a substantially implant for the surgical correction of heart valve ring-shaped rigid part (3), which is the base of the pen defects, which is characterized in that it is adapted from heart valve valves and which is provided with an essentially annular rigid part 3, throat, the edges (4, 5) of which are adapted to the base of the heart valve valves and are of different widths and the cavity of which is provided with a throat, the edges of which 4 , 5 is directed outward, and are of different widths in the throat and the cavity of which is arranged according to the sewing tape (6), which is directed outward, and of a part (3) fixed in the throat and the sewing tape (6) completely ordered sewing tape 6 consists, wherein the rigid with a cover (7) of textile fabrics covered part 3 and the sewing tape 6 are completely with a. i 5 cover 7 made of textile fabrics are covered. 2. Implantat zur chirurgischen Korrektur der Insbesondere betrifft die Erfindung ein Implantat Mitralklappe nach Anspruch 1, dadurch gekenn- zur chirurgischen Korrektur der Mitralklappe, das dazeichnet, d:.ß der starre Teil über ein Viertel bis durch gekennzeichnet ist, daß der starre Teil über ein zur Hälfte seines Umfangs abgeflacht ist. Viertel bis zur Hälfte seines Umfangs abgeflacht ist.2. Implant for Surgical Correction of the In particular, the invention relates to an implant Mitral valve according to claim 1, characterized for the surgical correction of the mitral valve, d: .ß the rigid part over a quarter to is characterized by that the rigid part over a is flattened to half of its circumference. Quarter to half of its circumference is flattened. 3. Implantat nach Anspruch 1, dadurch ge- ao An Hand der in der Zeichnung dargestellten beikennzeichnet, daß der Ring über eine I änge zwi- spielsweisen Ausführungsformen wird die Erfindung sehen einem Viertel und der Hälfte seines Um- im folgenden näher erläutert. Es zeigt3. Implant according to claim 1, characterized ge ao with reference to the beik shown in the drawing, that the ring over a length of intermediate embodiments is the invention see a quarter and a half of its um- explained in more detail below. It shows fangs offen ist. Fig. I ein geschlossenes ringförmiges Implantat.is open. Fig. I a closed ring-shaped implant. Fig.2 einen Schnitt längs der Linie A-A in2 shows a section along the line AA in as Fig. 1,as Fig. 1, Die Erfindung betrifft ein Implantat zur chirurgi- Fig. 3 die Mitralklappe während des AnbringensThe invention relates to an implant for surgical Fig. 3 the mitral valve during attachment sehen Korrektur von Herzklappenfehlern, insbeson- des in F i g. 1 gezeigten Implantats,see correction of heart valve defects, particularly in FIG. 1 shown implant, dere Fehlern, di~ die Mitralklappe beeinflussen. F i g. 4 die Mitralklappe nach der Anbringung desother defects that affect the mitral valve. F i g. 4 the mitral valve after the Es ist bekannt, zur Heilung von Herzklappenfeh- Implantats der Fig. 1 (die in den Fig. 3 und 4 darlern, insbesondere der Mitralkictppe, die fehlerhaften 30 gestellten Spreizwerkzeuge dienen nur zur Erläute-Ventile abzulösen und durch eine Prothese zu erset- rung und sind daher nicht mit Bezugszeichen versezen. hen),It is known, for the healing of heart valve implant of Fig. 1 (which are shown in Figs. 3 and 4, especially the Mitralkictppe, the faulty 30 provided spreading tools are only used to explain valves to be removed and replaced by a prosthesis and are therefore not offset with reference symbols. hen), In der USA.-Patentschrift 3 374489 ist eine Pro- Fig.5 die vergrößerte Darstellung eines offenenIn U.S. Patent 3,374,489, a pro Fig.5 is an enlarged view of an open these beschrieben, die aus zwei Teilen besteht, und ringförmigen Implantats undthesis described, which consists of two parts, and annular implant and zwar aus einem ringförmigen Teil, das in den Mitral- 35 F i g. 6 die Mitralklappe während der Anbringungalthough from a ring-shaped part that is in the mitral 35 F i g. 6 the mitral valve during installation ring eingesetzt wird, und einer ballonartigen, mit Ha- des Implantats nach F i g. 5.ring is used, and a balloon-like, with Ha- the implant according to F i g. 5. ken oder Klammern versehenen Klappe, die zwi- Das Implantat legt sich eng an die Basis der Ven-The implant lies close to the base of the ven- schen zwei Extremlagen hin- und herschwingt und tile an. Es besitzt praktisch die Form eines geschlos-between two extreme positions swings back and forth and tile on. It has practically the shape of a closed die Mitralöffnung öffnet und schließt. Das ringför- stnen oder offenen Ringes 1. Im Fall des geschlosse-the mitral opening opens and closes. The ring-shaped or open ring 1. In the case of the closed mige Teil spielt dabei eine doppelte Rolle: Es hält 40 nen Ringes ist dieser eben, kreisförmig, oval oderThis part plays a double role: it holds 40 a ring, whether it be flat, circular, oval or die Klappe und bildet den Verschlußsitz derselben. bei 2 über eine Länge zwischen einem Viertel undthe flap and forms the locking seat of the same. at 2 over a length between a quarter and Eine derartige Prothese weist verschiedene Nach- der Hälfte des Umfanges leicht abgeplattet (s.Such a prosthesis has slightly flattened half of the circumference (see Fig. teile auf. Sie stört die normale Physiologie des Mitral- Fig. 1). Der Bereich2 entspricht der Krümmung dessplit up. It interferes with the normal physiology of the mitral Fig. 1). Area2 corresponds to the curvature of the apparates, macht eine längere Verwendung von An- großen Ventils und der restliche Teil der Krümmungapparatus, makes a prolonged use of the large valve and the remainder of the bend tikoagulantien notwendig und führt unter Umstän- 45 des kleinen Ventils. Der Ring besitzt in seiner Ebeneticoagulants are necessary and may lead to the small valve. The ring possesses in its plane den zu einer Thrombose oder wird mechanisch zer- eine Symmetrieachse. Die größeren Abmessungenthat leads to a thrombosis or is mechanically broken into an axis of symmetry. The larger dimensions stört. längs dieser Achse und einer dazu senkrechten Achsedisturbs. along this axis and an axis perpendicular to it Bei Mitralklappeninsuffizienz ist es auch bekannt, liegen im allgemeinen zwischen 15 und 30 mm bzw.In mitral regurgitation, it is also known to be between 15 and 30 mm or die natürlichen Ventile einer Herzklappe beizubehal- 20 und 40 mm.maintain the natural valves of a heart valve - 20 and 40 mm. ten und ihre Fehler durch chirurgische Nähte, ohne 50 Der Ring weist einen starren Teil 3 auf, beispielsdie Verwendung von Prothesen, zu beseitigen. So weise aus nichtrostendem Stahl. Dieser Teil weist ein werden bei der Pingplastik nach Kay, der asymme- mit einer Kehle versehenes Profil auf, die nach außen trischen Ringplastik nach Wooler oder auch der gekrümmt ist (s. F i g. 2). Er ist ebenfalls im wesentli-Ringplastik nach Reed beispielsweise asymmetrische chen flach. Die Ränder der Kehle sind unterschied-Nahtpunkte angebracht, die die Fläche der öffnung 55 lieh breit. Der untere, ebene Rand 4 ist kürzer und vermindern und dem Ventil wieder Spannung verlei- zur Auflage auf dem Mitralring bestimmt. Das Profil hen. Die damit erzielten Ergebnisse sind jedoch nicht ges oberen Randes 5 ist rund. Die Breite des unteren ■zuverlässig, da ein weiteres Rückströmen möglich ist. liaüdes liegt im äHgemeüien zwischen 0,f und12iam, Darüber hinaus kann sich der Mitralring ausdehnen die des oberen Randes zwischen 1 und 3 mm. Dieser oder lockern, und die Punkte der Kommissuroplastik 60 Aufbau erlaubt automatisch eine verdeckte Anordkönnen unter den Zugkräften, denen sie unterworfen nung der Befestigungspunkte,
sind, nachgeben. Es tritt daher mit einer Häufigkeit, Der Ring weist ferner ein Nähband 6 auf, das im die von den Autoren mit 10 bis 40% angegeben Inneren der Kehle durch einen dicken Faden 8, beiwird, eine Verringerung der Wirksamkeit auf. spielsweise aus Polytetrafluoräthylen, gehalten wird.ten and their defects by surgical sutures without eliminating 50 The ring has a rigid part 3, for example the use of prostheses. So wisely made of stainless steel. In Kay's pingplasty, this part has an asymmetrical profile with a throat, the outwardly tric ringplastic according to Wooler or also curved (see Fig. 2). It is also essentially flat-ring plastic according to Reed, for example asymmetrical surfaces. The edges of the throat are attached different seam points, which lent the area of the opening 55 wide. The lower, flat edge 4 is shorter and diminished and intended to give tension to the valve again for resting on the mitral ring. The profile hen. The results obtained with it are not, however, the upper edge 5 is round. The width of the lower ■ reliable, as further backflow is possible. Liaüdes is in general between 0, f and 1 2iam, In addition, the mitral ring can expand that of the upper edge between 1 and 3 mm. This or loosen, and the points of the commissuroplasty 60 structure automatically allows a concealed arrangement under the tensile forces to which they are subjected to the attachment points,
are giving in. It therefore occurs with a frequency. The ring also has a sewing tape 6 which, in the interior of the throat, indicated by the authors as 10 to 40%, is reduced in effectiveness by a thick thread 8. for example made of polytetrafluoroethylene is held. Aufgabe der Erfindung ist nunmehr die Ermögli- 65 Ferner weist der Ring eine aus Textilmaterial beste· chung einer Korrektur von Herzklappenfehlera unter hende Hülle 7 auf, die ebenfalls beispielsweise aus Po-Beibehaltung der natürlichen Ventile der Herzklap- lytetrafluoräthylen besteht und gleichzeitig das Teil 3 Den. durch die ein unerwünschtes Rückströmen von und das Band 6 bedeckt.The object of the invention is now to enable a covering 7 made of textile material for correcting heart valve defects, which also consists, for example, of retaining the natural valves of the heart valve tetrafluoroethylene and at the same time the part 3 den . through which an undesired backflow from and the belt 6 is covered.
DE2005112A 1969-02-04 1970-02-04 Implant for the surgical correction of heart valve defects Expired DE2005112C3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR6902441A FR2031699A5 (en) 1969-02-04 1969-02-04
FR6944124A FR2071172A6 (en) 1969-12-19 1969-12-19

Publications (3)

Publication Number Publication Date
DE2005112A1 DE2005112A1 (en) 1970-08-27
DE2005112B2 true DE2005112B2 (en) 1973-08-02
DE2005112C3 DE2005112C3 (en) 1974-02-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE2005112A Expired DE2005112C3 (en) 1969-02-04 1970-02-04 Implant for the surgical correction of heart valve defects

Country Status (14)

Country Link
US (1) US3656185A (en)
JP (1) JPS504999B1 (en)
BE (1) BE745427A (en)
CA (1) CA930503A (en)
CH (1) CH508395A (en)
CS (1) CS163762B2 (en)
DE (1) DE2005112C3 (en)
GB (1) GB1293014A (en)
IL (1) IL33838A (en)
LU (1) LU60294A1 (en)
NL (1) NL143127B (en)
NO (1) NO123299B (en)
SE (1) SE357140B (en)
SU (1) SU365053A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2627619A1 (en) * 1975-06-23 1977-01-13 Usifroid LINEAR FEEDBACK DEVICE FOR VALVULOPLASTIC
DE3230858A1 (en) * 1982-08-19 1984-03-01 Ali Dr Med Ahmadi Ring prosthesis for the mitral or tricuspid valve of the heart

Families Citing this family (286)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1425577A (en) * 1972-06-30 1976-02-18 Ici Ltd Prosthetics comprising plastics materials
US4042978A (en) * 1972-06-30 1977-08-23 Imperial Chemical Industries Limited Prosthetics
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CH508395A (en) 1971-06-15
BE745427A (en) 1970-08-03
GB1293014A (en) 1972-10-18
SU365053A3 (en) 1972-12-28
IL33838A (en) 1974-03-14
JPS504999B1 (en) 1975-02-26
IL33838A0 (en) 1970-04-20
CS163762B2 (en) 1975-11-07
DE2005112A1 (en) 1970-08-27
DE2005112C3 (en) 1974-02-28
NL7001136A (en) 1970-08-06
US3656185A (en) 1972-04-18
NO123299B (en) 1971-10-25
NL143127B (en) 1974-09-16
SE357140B (en) 1973-06-18
LU60294A1 (en) 1970-08-04
CA930503A (en) 1973-07-24

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