EP3294217A1 - Dispositif implantable pour améliorer ou supprimer une insuffisance valvulaire - Google Patents

Dispositif implantable pour améliorer ou supprimer une insuffisance valvulaire

Info

Publication number
EP3294217A1
EP3294217A1 EP16726277.3A EP16726277A EP3294217A1 EP 3294217 A1 EP3294217 A1 EP 3294217A1 EP 16726277 A EP16726277 A EP 16726277A EP 3294217 A1 EP3294217 A1 EP 3294217A1
Authority
EP
European Patent Office
Prior art keywords
closure body
connecting element
bands
heart
investment
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Withdrawn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
EP16726277.3A
Other languages
German (de)
English (en)
Inventor
Till Neumann
Torsten Scheuermann
Niklas Maximilian Nathe
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.)
Coramaze Technologies GmbH
Universitaet Duisburg Essen
Original Assignee
Coramaze Technologies GmbH
Universitaet Duisburg Essen
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 Coramaze Technologies GmbH, Universitaet Duisburg Essen filed Critical Coramaze Technologies GmbH
Publication of EP3294217A1 publication Critical patent/EP3294217A1/fr
Withdrawn legal-status Critical Current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
    • A61F2/2478—Passive devices for improving the function of the heart muscle, i.e. devices for reshaping the external surface of the heart, e.g. bags, strips or bands
    • 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
    • A61F2/246—Devices for obstructing a leak through a native valve in a closed condition
    • 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
    • A61F2/2454—Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
    • 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
    • A61F2/2463—Implants forming part of the valve leaflets
    • 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
    • A61F2/2412—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 with soft flexible valve members, e.g. tissue valves shaped like natural valves
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body
    • A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0075—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners

Definitions

  • Implantable device for improving or eliminating a
  • the invention relates to an implantable device for improving or eliminating heart valve insufficiency comprising a closure body and at least one anchoring element attached thereto, with which the
  • Closure body in the heart preferably the atrium of the heart is attachable.
  • Implantable devices of this kind are known in the art, e.g. from the application DE 10 2012 010 798 A1 of the same inventor and are used when in a patient during the usual
  • Heart activity does not close the heart valves sufficiently and thereby
  • An implantable device of the type mentioned is then implanted in the heart of the patient, so that the closure body in
  • Passage region of the heart valve is arranged and thus the
  • Anchoring element can be made so that the anchoring element on the closure body allows atraumatic attachment in the heart, in particular by the fact that the anchoring element for the purpose of attachment to the inner wall of the heart creates without penetrating the heart wall.
  • an anchoring element for this purpose can be formed by a band or a plurality of bands or band sections, wherein a respective band or band portion of the closure body, if necessary.
  • a basket-like structure can be formed, which can be applied from the inside to the heart wall, in particular of the atrium, especially when bands are returned in a loop to the closure body.
  • an anchoring element of this type in the implanted state after attachment to a size that at least substantially corresponds to the volume of the atrium, preferably slightly larger is to achieve a resulting system pressure.
  • Insert anchoring element with such a large cross-section in the heart which is currently essentially done surgically by opening the heart, with a correspondingly complex and risky operation.
  • the anchoring element comprises a plurality of investment bands extending between the closure body and a common, spaced from the closure body connecting member, wherein the connecting element below
  • Locking body each spaced position can be brought, wherein in the first position, the connecting element has a greater distance from the closure body than in the second position and in the second position the
  • Connecting element is arranged between the bands.
  • the invention preferably provides that the device has exactly one single anchoring element formed by the bearing bands and lying on only one side of the closure body, in particular on the atrium side
  • Anchoring element having.
  • a band is understood to mean preferably any band-shaped or wire-shaped element that extends from the closure body to form the band
  • Anchoring element at least partially wegerstreckt and opens into the connecting element, if necessary, with the inclusion of branches or cross connections.
  • the two positions should preferably be chosen so that the
  • Connecting element in both positions lies on an imaginary line which coincides with the longitudinal direction of the closure body, preferably of a closure body whose cross-section can be changed perpendicular to the longitudinal extent, for example by having at least one cavity which can be filled with a fluid, wherein the at least one cavity after filling remains constant in volume, that is to say the volume of which does not subsequently change automatically, in particular during the cardiac phase a volume constancy is given, despite changing pressure conditions.
  • the invention is preferably used in conjunction with such a closure body, it can in principle be used with any closure body which is known in the art or will be developed in the future.
  • this type of anchoring element can be used not only with closure bodies to remedy heart valve insufficiency, but in principle with any implant that is to be anchored in the heart.
  • Anchoring element take two forms can be achieved by changing the shape of the investment bands, wherein the position of the two forms
  • Connecting element is different.
  • Closure body wegerstreckten ends of the investment bands connects.
  • these ends of the abutment bands may be originally open, free ends, which are connected by the connecting element.
  • the extension can in particular be such that the contact strips have, at least in sections, a respective linear extent between the closure body and the connecting element.
  • the entire device in this first position, may be inserted into a catheter to pass therethrough, eg, transfemoral into the heart to be brought.
  • the maximum cross section of the entire device is smaller than the inner cross section of the catheter.
  • the connecting element In the second position, the connecting element is moved closer to the closure body not only relative to the first position, whereby the abutment belts move away from one another in a direction perpendicular to the longitudinal extent of the device, but positioned so close that it enters an area between the abutment belts is preferably on the imaginary line mentioned above, which coincides with the longitudinal direction.
  • the arrangement of the connecting element between the abutment bands preferably means that in a view of a cross-section perpendicular to the direction of connection between ventricle and atrium, i. perpendicular to
  • Connecting element preferably located centrally between the bands, the investment bands this connecting element thus surrounded.
  • an arrangement of the connecting element between the contact strips in the second position further or understood in other words that in a direction perpendicular to the aforementioned line, in particular a central axis line that passes through the closure body and the connecting element, laterally adjacent to the connecting elements areas consist of several bands, in particular those areas of several bands are arranged around this line / central axis line around.
  • the arrangement is such that in the aforementioned direction perpendicular to the line / central axis line laterally adjacent to the connecting element, in particular over its entire axial length, no areas of one or more bands are.
  • Tiebacks connected to the connector are preferred at the axial end face of the closure body facing the
  • Closing body weg gode end of the connecting element is no longer the extremal end of the entire device, but lies before this, i. closer to the closure body.
  • the connecting element itself does not come to rest on the inner heart wall, but preferably only the abutment belts, in particular with their outer sides.
  • the abutment belts are pushed apart so far, preferably maximally, that they together form a basket structure which delimits a cross section which at least equals or is greater than the cross section of the atrium used for attachment.
  • the said cage structure forms an inverted towards the interior of the basket structure invagination.
  • This indentation is preferably arranged symmetrically about the said central axis line and further preferably forms an at least partially annular space which is formed around the connecting element and is more preferably open to the outside.
  • "Outwards" means seen from the connecting element in the direction away from the closure body
  • the outwardly facing opening of the indentation has an opening plane, in particular, which is intended to be tangential to the basket structure and intended to lie perpendicular to the central axis line, the connecting element being arranged between this plane and the closure element in the second position.
  • the design of the device can be chosen so that in the second position, the investment bands each area a to
  • closure body directed back extension and / or on the maximum distance from the closure body end of the anchoring element convex are formed and / or have a region-wise S-shaped extension, in particular adjacent to the connecting element. especially the
  • Vertex areas of the S-shaped extension can be used for
  • the bearing strips are interconnected by braces or have branches.
  • the device may have an embodiment in which an equal number is provided extending from the closure body away
  • each plant band section of the one group is shown in at least two plant band branches and is connected via these with two plant band sections of the other group.
  • Crossing plant tape sections in particular be connected at the intersection points.
  • the investment bands are each connected at the end facing the closure body with an inner body of the closure element, around which are arranged with the heart valves interacting surfaces of the closure element. These interacting surfaces are preferably the wall or regions of at least one fluid-fillable cavity arranged around a base body.
  • Embodiments also subsumes the Ohnebandabitese, in particular the closure body-side.
  • the main body may be an e. G. act tubular element around which at least one fillable cavity is arranged, as mentioned above.
  • a base body may be formed in a simple embodiment by a rigid tube, in particular which is surrounded by the at least one cavity.
  • a preferred embodiment may also provide that the
  • Base body is designed as a bendable out of its linear extension element, in particular by internal spring forces in the linear
  • Such a body is therefore preferably self-restoring flexible.
  • the base body may be wound at least in sections into a spring, e.g. from a wire with a round or a band with an angular cross-section.
  • a flexible base body may also be made of an originally rigid tube, by introducing a plurality of incisions in the lateral surface of the tubular body. Notches may preferably be perpendicular to the longitudinal extent and are preferably spaced equidistantly in the longitudinal direction.
  • Longitudinally successive incisions may also be made alternately in different directions, by which it is preferably understood that cuts are made with respect to an angle viewed in the circumferential direction at different angular positions.
  • the angular positions can be equidistant, for example, cuts are preferably at 0 degrees, 90 degrees, 180 degrees and 270 degrees.
  • At a respective longitudinal direction position can also be two
  • Opposite incisions each terminating in front of the center of the tube, e.g. a pair of opposing cuts at 0 and 180 degrees and a pair at 90 and 270 degrees.
  • the pairs are then spaced longitudinally, preferably equidistant.
  • a self-restoring flexibility of a tubular base body can also be realized by one or more meander-shaped cuts in the lateral surface of the base body. In case of several cuts they can be interlocked. Such a meander cut may alternately have longitudinal and transverse, preferably perpendicular cutting sections.
  • the invention can provide in a preferred development that at least the connecting element, the contact strips and an inner body of the closure body, e.g. the one described above, integral with each other
  • most of the device can be made from a semi-finished product, e.g. a tube, in particular of a shape memory material.
  • Connecting element by a force away from the closure body of the second can be converted into the first position, in particular against a spring applied to the belt tension.
  • This force can eg by means of a
  • Sliding catheter are exerted on the connecting element, which pushes the connecting element of the closure body.
  • the push catheter may e.g. be guided by the closure body and on
  • An embodiment may also provide that the connecting element can be transferred from the first to the second position by means of temperature changes from a first temperature to a second temperature forces in the formed of a shape memory material investment bands, in particular wherein at the first and second temperature corresponding to the first or the second position forms a stable position of the investment bands.
  • the shape of the abutment bands taken in the first position can form a stable position at a first lower temperature and the shape of the second position form a stable position at a temperature higher than the first temperature.
  • the device may be implanted in a cooled manner, for example, with continuous cooling during delivery in a catheter, e.g. which is acted upon by a cooling fluid.
  • the device After implantation, the device heats up and goes over into the mold in which the connecting element occupies the second position.
  • the connecting element may have an inner open cross-section, in particular be designed as a ring or tubular sleeve.
  • a guide wire can be pushed through, for example, after it has been passed through the closure body, in particular by its body.
  • the above-mentioned sliding catheter can be guided on the guide wire until, for example, sleeve-shaped connecting element are advanced and abuts this, since he can not penetrate the connecting element. Sliding the sliding catheter causes the pushed, in particular sleeve-shaped connecting element pulls the rest of the device, in particular the closure body on the bands behind it.
  • FIG. 1 shows a lateral view of a device according to the invention with a closure body 1, here a fillable of the type described above with at least one cavity 4, which around a main body 1 a around
  • the cavity 4 is bounded outwardly by the wall 4a.
  • the closure body 1 is shown on the left side.
  • the right side of the closure body 1 wegerumblenden investment bands 2 form a total basket or cage-like structure and with this structure, the anchoring element according to the invention, here in the expanded state after implantation.
  • the investment bands 2 are divided into closure body-side
  • Roobandabitese 2 a the emanating from the closure body 1, and the main body 1 a and in each two plant band branches 2b1 (to the right) and 2b2 (to the left) branch.
  • Abutment tape sections 2a are reunited in a joint body side conditioning tape section 2c.
  • FIG. 1 shows that here the connecting element 3 has assumed a position close to the closure body, in which it is arranged between the contact bands 2. According to the previous general description, it is the second position.
  • the adjacent to the connecting element 3 areas of the contact strips 2 and the izobandabête 2c are bent in an S-shape.
  • the vertices of the S form a bend, the investment belts 2, and the plant tape sections 2c to the closure body 1 back towards.
  • huibandabitese 2c form a convex to the heart wall area 2e, which comes to rest on the inner heart wall of the atrium.
  • the connecting element 3 is closer to the closure body 1 than the convex end portions 2e.
  • Investment belts 2 formed anchoring element.
  • the opening of the indentation pointing away from the closure body 1 has an opening plane 6, visualized by the dashed line. This opening plane 6 is perpendicular to
  • Connecting element 3 extends and is tangent to the contact strips 2.
  • the connecting element 3 is in the second position shown here, ie the fully expanded state of the anchoring element between the
  • the connecting element 3 can not come into contact with the myocardial tissue when anchoring is done.
  • FIG. 2 shows the device in a state in which the
  • Connecting element 3 is in a position in which it further from
  • Closure body 1 is removed than in the second position. The distance here is maximum, so that the contact strips 2 or the respective contact strip sections are maximally stretched and have a substantially linear extension.
  • Connecting element 3 open into this, or are connected to it. Due to the extension of the abutment bands 2, these are located close to one another, so that the device as a whole has a cross section perpendicular to the direction of extent which is smaller than the inner diameter of a catheter 8, in which the device can be brought to the implantation site.

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)

Abstract

L'invention concerne un dispositif implantable pour améliorer ou supprimer une insuffisance valvulaire comprenant un corps de fermeture (1) et au moins un élément d'ancrage fixé à celui-ci et permettant la fixation du corps de fermeture (1) dans le cœur, de préférence à l'oreillette du cœur. L'élément d'ancrage comprend plusieurs bandes d'appui (2) qui s'étendent entre le corps de fermeture (1) et un élément de liaison (3) commun espacé du corps de fermeture (1), l'élément de liaison (3) pouvant, par déformation des bandes d'appui (2), être mis dans une première et une seconde position dans lesquelles il se trouve respectivement à distance du corps de fermeture. Dans la première position, l'élément de liaison (3) est séparé du corps de fermeture (1) par une distance supérieure à celle qui le sépare de celui-ci dans la seconde position, et dans la seconde position, l'élément de liaison (3) se trouve entre les bandes d'appui (2).
EP16726277.3A 2015-05-12 2016-05-10 Dispositif implantable pour améliorer ou supprimer une insuffisance valvulaire Withdrawn EP3294217A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015005934.3A DE102015005934A1 (de) 2015-05-12 2015-05-12 Implantierbare Vorrichtung zur Verbesserung oder Behebung einer Herzklappeninsuffizienz
PCT/EP2016/000758 WO2016180530A1 (fr) 2015-05-12 2016-05-10 Dispositif implantable pour améliorer ou supprimer une insuffisance valvulaire

Publications (1)

Publication Number Publication Date
EP3294217A1 true EP3294217A1 (fr) 2018-03-21

Family

ID=56096600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16726277.3A Withdrawn EP3294217A1 (fr) 2015-05-12 2016-05-10 Dispositif implantable pour améliorer ou supprimer une insuffisance valvulaire

Country Status (7)

Country Link
US (1) US20180133012A1 (fr)
EP (1) EP3294217A1 (fr)
JP (1) JP2018519878A (fr)
CN (1) CN107809982A (fr)
CA (1) CA2984978A1 (fr)
DE (1) DE102015005934A1 (fr)
WO (1) WO2016180530A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2964770T3 (es) * 2016-02-29 2024-04-09 Coramaze Tech Gmbh Implante cardíaco
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CN107809982A (zh) 2018-03-16
US20180133012A1 (en) 2018-05-17
WO2016180530A1 (fr) 2016-11-17
JP2018519878A (ja) 2018-07-26
DE102015005934A1 (de) 2016-11-17

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