FR2645739A1 - Cardiac assistance device and its use - Google Patents

Cardiac assistance device and its use Download PDF

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Publication number
FR2645739A1
FR2645739A1 FR8904955A FR8904955A FR2645739A1 FR 2645739 A1 FR2645739 A1 FR 2645739A1 FR 8904955 A FR8904955 A FR 8904955A FR 8904955 A FR8904955 A FR 8904955A FR 2645739 A1 FR2645739 A1 FR 2645739A1
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FR
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Prior art keywords
bag
assistance
device
cardiac
shape
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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.)
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FR8904955A
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French (fr)
Inventor
Guy Mentzer
Jean-Jacques Danes
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VM TECH SA
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VM TECH SA
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/1037Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps
    • A61M1/1067Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps using a blood vessel as flexible element
    • A61M1/1068Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps using a blood vessel as flexible element using the heart as flexible element
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/1008Tubes; Connections therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/1037Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps
    • A61M1/1046Drive systems therefor, e.g. mechanically, electromechanically or skeletal muscle drive means
    • A61M1/106Drive systems therefor, e.g. mechanically, electromechanically or skeletal muscle drive means using hydraulic or pneumatic means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/12Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body

Abstract

The present invention concerns a cardiac assistance device and its use. The cardiac assistance device is characterised in that it comprises a bag 1 consisting of a semi-rigid wall, having a shape adapted to the outer shape of the myocardium, the bag comprising in its upper open part an annular rim 10 in which a tightening cord 2 is arranged, at least two flexible walls 3, 4 positioned inside the bag and integral with the inner wall of the semi-rigid bag 1 via the periphery of their contour 31, 41, in such a way as to form inflatable bags, and tubes 32, 4e, 34, 44 for supplying gas to each of the bags. <IMAGE>

Description

DIPOSITIF D'ASSISTANCE CARDIAOUE ET SON UTILISATION DIPOSITIF CARDIAOUE OF ASSISTANCE AND USE
La présente invention concerne un dispositif d'assistance cardiaque et l'utilisation d'un tel dispositif. The present invention provides a heart assist device and the use of such a device.

Il est connu une méthode d'assistance cardiaque, permettant d'assister le travail du myocarde, qui consiste à prélever un muscle dorsal du patient, à passer ce muscle dorsal autour du myocarde et à stimuler ce muscle par un stimulateur cardiaque. He had a heart assist method for assisting the work of the myocardium, which involves taking a dorsi muscle of the patient, to pass it around dorsi muscle infarction and stimulate the muscle by a pacemaker.

Cette méthode présente l'inconvénient d'un manque d'efficacité car le muscle dorsal prélevé, au bout d'un certain temps d'utilisation électrique, se nécrose. This method has the disadvantage of a lack of efficiency because the collected dorsi, after a while electrical use, necrosis.

Le but de l'invention est donc de proposer un dispositif fiable dans le temps. So the object of the invention is to provide a reliable device over time.

Ce but est atteint par le fait que le dispositif d'assistance cardiaque est caractérisé en ce qu'il comporte une poche constituée d'une paroi semi-rigide, de forme adaptée à la forme extérieure du myocarde, cette poche comportant à sa partie ouverte supérieure un bourrelet annulaire dans lequel est disposé un cordon de serrage, au moins deux parois souples placées à l'intérieur de la poche et solidaires de la paroi interne de la poche par la périphérie de leur contour, de façon å former des poches gonflables, et des tuyaux d'amenée de gaz à chacune des poches. This object is achieved in that the heart assist device is characterized in that it comprises a pouch consisting of a semi-rigid wall, with a shape adapted to the outer shape of the myocardium, the pocket having at its open portion a top annular flange in which is disposed a drawstring at least two flexible walls placed inside of the bag and secured to the inner wall of the pocket by the periphery of their contour, in order to form inflatable pockets, and feed pipes of gas to each of the pockets.

Un deuxième but de l'invention est de proposer une meilleure assistance du muscle cardiaque. A second object of the invention to provide better assistance to the heart muscle.

Ce but est atteint par le fait que la poche semirigide comporte à l'intérieur trois poches gonflables dont deux sont destinees à se retrouver en vis-å-vis du ventricule gauche après mise en place du coeur dans la poche semi-rigide. This is achieved by the fact that the rigid pocket has inside three inflatable pockets which two are meant to meet vis-å-vis the left ventricle after implementation of the core in rigid pocket.

Selon une autre caractéristique, les poches gonflables sont rendues solidaires de la paroi interne par thermosoudure ou collage et sont constituées en silicone souple. According to another feature, the inflatable pockets are made integral with the inner wall by heat sealing or bonding and are made of flexible silicone.

Selon une autre caractéristique les tuyaux d'amenée de gaz sont reliés à une pompe de contre-pulsion pour gonfler et dégonfler les poches selon une séquence et un rythme déterminés. According to another characteristic of the gas supply pipes are connected to a cons-drive pump to inflate and deflate the pockets in a sequence and a determined rate.

Un autre but de l'invention est de proposer un dispositif permettant une mise en place définitive ou de longue durée. Another object of the invention to provide a device for a definitive establishment and long-term.

Ce but est atteint par le fait que le dispositif comporte des moyens de fixation permettant la fixation de la poche semi-rigide à l'intérieur de la paroi thoracique et selon une autre caractéristique par le fait que les tuyaux diamente comportent des renforts intérieurs et/ou extérieurs. This object is achieved in that the device comprises fastening means for fastening the semi-rigid pocket inside of the chest wall and according to another feature in that the pipes comprise Diamente inner reinforcements and / or external.

Un dernier but est de proposer une utilisation du dispositif. A final object is to propose a use of the device.

Ce but est atteint par le fait qu'après mise en place du dispositif et introduction du coeur dans la poche semi-rigide, la pompe de contre-pulsion déclenche le gonflage et le dégonflage des poches selon une séquence et un rythme déterminés. This object is achieved in that after setting up the device and introduction of the core in the semi-rigid pouch, pump-drive against triggers inflation and deflation of pockets in a sequence and a determined rate.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description ci-apres faite en référence aux dessins annexés dans lesquels Other features and advantages of the present invention will become apparent from reading the description given after with reference to the accompanying drawings
- la figure I représente une vue en coupe partielle du dispositif de l'invention ; - Figure I shows a partial sectional view of the device of the invention;
- la figure 2 représente une vue de dessus du même dispositif - Figure 2 shows a top view of the same device
- la figure 3 représente une vue de dessous du même dispositif - Figure 3 shows a bottom view of the same device
- la figure 4 représente une vue de côté du dispositif avec une vue en coupe du muscle myocarde après mise en place dans le dispositif. - Figure 4 shows a side view of the device with a sectional view of the myocardial muscle after placement in the device.

Le dispositif de l'invention comporte une poche (1) semi-rigide ayant substantiellement une forme ovoïde dont la partie supérieure est enlevée. The device of the invention comprises a bag (1) semi-rigid having a substantially ovoid shape whose upper portion is removed.

Cette poche ouverte à sa partie supérieure comporte un rebord (10) formant substantiellement un tore creux à l'intérieur duquel circule un cordon (2) qui, comme on peut le voir à la figure (2) débouche par les ouvertures (100, 101) du tore à l'extérieur de la poche (1). This pocket open at its upper part comprises a flange (10) substantially forming a hollow core within which runs a cord (2) which, as can be seen in figure (2) opens by openings (100, 101 ) of the core outside of the bag (1).

Cette poche (1) est constituée d'une coque en silicone rendue semi-rigide par exemple par un passage au four ou une vulcanisation. This bag (1) consists of a silicone skin made rigid, for example by baking or vulcanization.

A l'intérieur de la poche semi-rigide sont matérialisées trois poches souples (3, 4, 5) constituées par des feuilles en silicone souple dont le contour respectif (31, 41, 51) est rendu solidaire de la paroi interne de la poche semi-rigide (1) par collage ou thermosoudage. Inside the rigid pocket are materialized three flexible bags (3, 4, 5) consist of soft silicone sheets with the respective contour (31, 41, 51) is made integral with the inner wall of the pocket rigid (1) by gluing or heat sealing.

Sur la figure 1 les bords (30) et (50) représentent le bord de la coupe réalisée sur les poches (3) et (5) en supposant celles-ci semi-gonflées. In Figure 1 the edges (30) and (50) represent the edge of the cutting performed on the pockets (3) and (5) assuming these semi-inflated.

Dans la cavité formée par chacune des feuilles en silicone (3, 4, 5) et la paroi interne de la poche semirigide (1) débouche un embout d'amenée respectif (32, 42, 52 > . In the cavity formed by each of the silicone sheets (3, 4, 5) and the inner wall of the rigid pocket (1) opens a respective feed nozzle (32, 42, 52>.

Comme on peut le voir sur la section de la figure 1, chaque embout d'amenée (52) respectivement (42, 32) traverse la paroi semi-rigide (1) et débouche à l'intérieur de sa poche (5, 4, 3). As can be seen in the Figure 1 section, each supply nozzle (52) respectively (42, 32) passes through the rigid wall (1) and opens inside the bag (5, 4, 3).

Cet embout comporte des renforts externes (520) et éventuellement des renforts internes (521) de façon à améliorer l'étanchéité du dispositif. This tip has external reinforcements (520) and optionally internal reinforcements (521) so as to improve the sealing of the device.

Chaque embout (32, 42, 52) est rendu solidaire d'un tube respectif (34, 44, 54) d'amenée du gaz de gonflage des poches. Each ferrule (32, 42, 52) is made integral with a respective tube (34, 44, 54) for feeding the inflation gas pockets. Ces tubes d'amenée (34, 44, 54) ont un diamètre de 6 mm et sont renforcés pour éviter un écrasement du tube en cas de pliage. These feed pipes (34, 44, 54) have a diameter of 6 mm and are reinforced to prevent crushing of the tube in the event of folding.

Les lignes (31, 41, 51) matérialisent sur les figures 1, 2, 3 les contours respectifs des feuilles constituant les poches et par conséquent les lignes de solidarisation de ces-feuilles avec la poche interne. Lines (31, 41, 51) materialize in Figures 1, 2, 3 the respective contours of the sheets forming the pockets and consequently the attachment lines of the leaf with the inner pouch.

Pour fixer les idées et à titre d'exemple, la dimension maximale de la poche semi-rigide est de 105 mm alors que la dimension de l'ouverture délimitée par le bourrelet (10) est de l'ordre de 75 mm. To fix ideas and by way of example, the maximum dimension of the semi-rigid pocket is 105 mm, while the dimension of the opening defined by the bead (10) is of the order of 75 mm.

Enfin la forme de la poche difficile à definir par une forme géométrique traditionnelle est de forme adaptée à recevoir le muscle myocarde. Finally the shape of the pocket hard to define by traditional geometric shape is adapted to receive the myocardial muscle.

Les tuyaux d'amenée (34, 44, 54) sont réunis en un seul faisceau protégé par une gaine (6). The feed pipes (34, 44, 54) are combined into a single beam protected by a sheath (6).

La figure 3 représente une vue de dessous de la poche semi-rigide sur laquelle on peut voir que le fond de la poche est rendu solidaire d'une pièce de fixation (7), cette pièce de fixation (7) pouvant être constituée de façon avantageuse par un tissu nylon silicone collé sur le fond externe de la prothèse. 3 shows a bottom view of the rigid pocket which one can see that the bottom of the pocket is made integral with an attachment piece (7), said mounting part (7) being constituted so advantageously by a nylon fabric silicone glued to the outer bottom of the prosthesis. Cette pièce de fixation permet la fixation de la prothèse à l'intérieur de la cage thoracique. This fastener allows the fixation of the prosthesis within the rib cage.

L'utilisation du dispositif est représenté à la figure (4) sur laquelle on peut voir un muscle cardiaque (8) mis en place dans l'ouverture de la poche de façon à ce que le ventricule droit (80) et le ventricule gauche (81) soient à l'intérieur du volume défini par la paroi interne de la poche semi-rigide. Use of the device is shown in figure (4) on which there is shown a heart muscle (8) placed in the opening of the pocket so that the right ventricle (80) and left ventricle ( 81) are inside the volume defined by the inner wall of the rigid pocket.

La poche (l) est serrée autour du muscle myocarde grâce au cordon (2) et après cette opération on fixe la prothèse grâce i la pièce de fixation (7) sur la paroi thoracique. The pocket (s) is clamped around the muscle myocardium through the cord (2) and after this operation, the prosthesis is fixed through i the fixing part (7) on the chest wall.

Les tuyaux d'amenée des gaz (34, 44, 54) passant par les espaces intercostaux sont reliés à une pompe de contre-pression aortique du type de celle commercialisée, par exemple, par la Société ARIES NEDICAL, sous la référence 700. The gas supply pipes (34, 44, 54) passing through the intercostal spaces are connected to an aortic against-pressure pump of the type marketed, for example, by the ARIES NEDICAL Corporation, under reference 700.

Le cordon de serrage de la prothèse vient substantiellement se fixer au niveau de la valvule tricuspide (83) et de la valvule mitrale (84). The prosthesis of the drawstring is substantially set at the tricuspid valve (83) and the mitral valve (84).

La pompe de contre-pression est ensuite mise en route, de façon à assurer selon une séquence déterminée le gonflage et le dégonflage des poches (3, 4, 5) et selon également le rythme choisi, ce rythme pouvant être élaboré en fonction de l'électrocardiographe et du résultat que l'on veut obtenir. Pump against pressure is then switched on, so as to ensure in a predetermined inflation sequence and deflation of pockets (3, 4, 5) and also according to the chosen rate, this rate can be developed based on the electrocardiograph and the result to be obtained.

Les poches (3, 4, 5) en gonflant compriment les ventricules droit et gauche et permettent, selon la séquence et le rythme imposés, d'assister le myocarde dans son travail de circulation sanguine. The pockets (3, 4, 5) by inflating compress the right and left ventricles and allow, in the sequence and the imposed rhythm, to assist the myocardium in its work bloodstream. Le dégonflage des poches par la pompe de contre-pression permet de laisser le muscle cardiaque reprendre sa forme initiale. Deflation pockets the pump against pressure allows to leave the heart muscle recover its initial shape.

Cette utilisation est particulièrment avantageuse dans le cas d'infarctus du myocarde. This use is particulièrment advantageous in the case of myocardial infarction. En effet, dans ce cas le myocarde n'est plus vascularisé suffisamment et ne permet plus une circulation sanguine correcte tant qu'un pontage chirurgical ou une dilatation des coronaires n'est pas effectuée. Indeed, in this case the myocardium is not sufficiently vascularized and no longer allows a correct blood circulation as a surgical bypass or coronary dilation is not performed.

La prothèse de l'invention permet,- par exemple, d'attendre cette intervention curative ou éventuellement de supprimer cette intervention. The prosthesis of the invention, - for example, to expect this curative intervention or possibly eliminate this intervention.

La réalisation décrite ci-dessus n'est qu'un exemple illustratif de l'invention et, en particulier, toute modification à la portée de l'homme de métier fait également partie de l'esprit de l'invention. The embodiment described above is only an illustrative example of the invention and, in particular, changes in the scope of the art is also part of the spirit of the invention.

Claims (9)

    REVENDICATIONS
  1. 1) Dispositif d'assistance cardiaque caractérisé en ce qu'il comporte une poche (1) constituée d'une paroi semi-rigide, de forme adaptée à la forme extérieure du myocarde, la poche (1) comportant à sa partie ouverte supérieure un bourrelet annulaire (10) dans lequel est disposé un cordon de serrage (2), au moins deux parois souples (3, 4) placées à l'intérieur de la poche (1) et solidaires de la paroi interne de la poche semi-rigide (1) par la périphérie de leur contour (31, 41), de façon à former des poches gonflables, et des tuyaux d'amenée (32, 42, 34, 44) du gaz à chacune des poches. 1) cardiac assist device characterized in that it comprises a bag (1) made of a semi-rigid wall, with a shape adapted to the outer shape of the myocardium, the bag (1) having at its open top a annular bead (10) in which is arranged a clamping bead (2), at least two flexible walls (3, 4) placed inside the bag (1) and integral with the inner wall of the rigid pocket (1) by the periphery of their contour (31, 41), so as to form inflatable pockets, and supply pipes (32, 42, 34, 44) of gas to each of the pockets.
  2. 2) Dispositif selon la revendication 1, caractérise en ce que la poche semi-rigide (1) comporte å l'intérieur trois poches gonflables (3, 4, 5) dont deux sont destinées à se retrouver en vis-a-vis du ventricule gauche après mise en place du coeur dans -la poche semi-rigide (1). 2) Device according to claim 1, characterized in that the semi-rigid bag (1) comprises inside three inflatable pockets (3, 4, 5) two of which are intended to end up in vis-a-vis the ventricular left after positioning of the core in -the rigid bag (1).
  3. 3) Dispositif selon la revendication 1 ou 2, caractérisé en ce que les poches gonflables (3, 4, 5) sont rendues solidaires de la paroi interne de la poche semirigide (1) par thermosoudure ou collage et sont constituées en silicone souple. 3) Device according to claim 1 or 2, characterized in that the inflatable pockets (3, 4, 5) are made integral with the inner wall of the rigid pocket (1) by heat sealing or bonding and are made of flexible silicone.
  4. 4) Dispositif selon une des revendications précédentes, caractérisé en ce que les embouts (32, 42, 52) d'entrée dans la poche (1) comportent des renforts intérieurs et/ou extérieurs (520, 521, 420, 421, 320, 321). 4) Device according to one of the preceding claims, characterized in that the end pieces (32, 42, 52) of entry into the bag (1) comprise inner and / or outer reinforcements (520, 521, 420, 421, 320, 321).
  5. 5) Dispositif selon une des revendications précédentes caractérise en ce que le fond extérieur de la poche semi-rigide (1) comporte des moyens de fixation (7) permettant la fixation de la poche semi-rigide à l'intérieur de la paroi thoracique. 5) Device according to one of the preceding claims characterized in that the outer bottom of the semi-rigid bag (1) comprises fixing means (7) for attaching the semi-rigid pocket inside of the chest wall.
  6. 6) Dispositif selon la revendication 5, caractérisé en ce que les moyens de fixation (7) sont constitués d'un tissu analergique en nylon siliconé rendu solidaire du fond externe de la poche par collage. 6) Device according to claim 5, characterized in that the fastening means (7) consist of a fabric antiallergenic silicone nylon secured to the external bottom of the bag by adhesive.
  7. 7) Dispositif selon une des revendications précédentes, caractérisé en ce que les tuyaux (34, 44, 54) d'amenée du gaz pour gonfler les poches internes sont en silicone renforcé. 7) Device according to one of the preceding claims, characterized in that the pipes (34, 44, 54) for supplying gas to inflate the inner pockets are reinforced silicone.
  8. 8) Dispositif selon la revendication précédente, caractérisé en ce que les tuyaux d'amenée sont reliés à une pompe de contre pulsion pour gonfler et dégonfler les poches selon une séquence et un rythme déterminés. 8) Device according to the preceding claim, characterized in that the feed pipes are connected to a pump against drive for inflating and deflating the pockets in a sequence and a determined rate.
  9. 9) Utilisation du dispositif selon une des revendications précédentes caractérisée en ce qu'elle consiste, apurés une mise en place du dispositif d'assistance dans la cavité thoracique et introduction du coeur dans la poche, à délencher le gonflage et le dégonflage des poches selon une séquence et un rythme déterminés. 9) Use of the device according to one of the preceding claims characterized in that it consists, cleared an establishment of the assistance device in the thoracic cavity and introduction of the core in the pocket, to délencher the inflation and deflation of the bags according a sequence and a determined rate.
FR8904955A 1989-04-14 1989-04-14 Cardiac assistance device and its use Withdrawn FR2645739A1 (en)

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US5910124A (en) * 1994-01-10 1999-06-08 Cardiassist Incorporated Ventricular assist device and method
US6432039B1 (en) 1998-12-21 2002-08-13 Corset, Inc. Methods and apparatus for reinforcement of the heart ventricles
US6540659B1 (en) 2000-11-28 2003-04-01 Abiomed, Inc. Cardiac assistance systems having bi-directional pumping elements
US6547716B1 (en) 2000-11-28 2003-04-15 Abiomed, Inc. Passive cardiac restraint systems having multiple layers of inflatable elements
US6595912B2 (en) 2000-03-10 2003-07-22 Paracor Surgical, Inc. Expandable cardiac harness for treating congestive heart failure
US6602182B1 (en) 2000-11-28 2003-08-05 Abiomed, Inc. Cardiac assistance systems having multiple fluid plenums
US6612978B2 (en) 1999-12-22 2003-09-02 Paracor Surgical, Inc. Expandable cardiac harness for treating congestive heart failure
US6616596B1 (en) 2000-11-28 2003-09-09 Abiomed, Inc. Cardiac assistance systems having multiple layers of inflatable elements
US6626821B1 (en) 2001-05-22 2003-09-30 Abiomed, Inc. Flow-balanced cardiac wrap
US6695769B2 (en) 2001-09-25 2004-02-24 The Foundry, Inc. Passive ventricular support devices and methods of using them
US6846296B1 (en) 2000-09-14 2005-01-25 Abiomed, Inc. Apparatus and method for detachably securing a device to a natural heart
WO2005044338A1 (en) * 2003-11-11 2005-05-19 Sunshine Heart Company Pty Ltd Actuator for a heart assist device
US7060023B2 (en) 2001-09-25 2006-06-13 The Foundry Inc. Pericardium reinforcing devices and methods of using them
WO2007123997A2 (en) * 2006-04-19 2007-11-01 Beth Israel Deaconess Medical Center Pericardial reinforcement device
US7373851B2 (en) * 2004-07-29 2008-05-20 Siemens Aktiengesellschaft Pulsatile test simulator for evaluating the quality of an x-ray image
US7736299B2 (en) 2002-11-15 2010-06-15 Paracor Medical, Inc. Introducer for a cardiac harness delivery
US7862499B2 (en) 2003-10-30 2011-01-04 Sunshine Heart Company Pty Ltd Blood vessel wrap
US7887478B2 (en) 2003-10-31 2011-02-15 Sunshine Heart Company Pty Ltd Percutaneous gas-line
US7976454B2 (en) 2002-01-07 2011-07-12 Paracor Medical, Inc. Cardiac harness
US8002691B2 (en) 2001-07-30 2011-08-23 Sunshine Heart Company Pty Ltd. Fluid pressure generating means
US8016739B2 (en) 1999-06-10 2011-09-13 Sunshine Heart Company Pty Ltd Heart assist devices, systems and methods
US8192351B2 (en) 2007-08-13 2012-06-05 Paracor Medical, Inc. Medical device delivery system having integrated introducer
US8206278B2 (en) 2006-08-21 2012-06-26 Sunshine Heart Pty Ltd. Wrap for a heart assist device
US8571658B2 (en) 2003-10-31 2013-10-29 Sunshine Heart Company Pty Ltd Synchronization control system
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US5910124A (en) * 1994-01-10 1999-06-08 Cardiassist Incorporated Ventricular assist device and method
US6224540B1 (en) 1995-06-13 2001-05-01 Abiomed, Inc. Passive girdle for heart ventricle for therapeutic aid to patients having ventricular dilatation
US6508756B1 (en) 1995-06-13 2003-01-21 Abiomed, Inc. Passive cardiac assistance device
US5800528A (en) * 1995-06-13 1998-09-01 Abiomed R & D, Inc. Passive girdle for heart ventricle for therapeutic aid to patients having ventricular dilatation
US6432039B1 (en) 1998-12-21 2002-08-13 Corset, Inc. Methods and apparatus for reinforcement of the heart ventricles
US8016739B2 (en) 1999-06-10 2011-09-13 Sunshine Heart Company Pty Ltd Heart assist devices, systems and methods
US8591394B2 (en) 1999-06-10 2013-11-26 Sunshine Heart Company Pty Ltd. Heart assist devices, systems and methods
US6612978B2 (en) 1999-12-22 2003-09-02 Paracor Surgical, Inc. Expandable cardiac harness for treating congestive heart failure
US6702732B1 (en) 1999-12-22 2004-03-09 Paracor Surgical, Inc. Expandable cardiac harness for treating congestive heart failure
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US6612979B2 (en) 2000-03-10 2003-09-02 Paracor Surgical, Inc. Expandable cardiac harness for treating congestive heart failure
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US6547716B1 (en) 2000-11-28 2003-04-15 Abiomed, Inc. Passive cardiac restraint systems having multiple layers of inflatable elements
US6616596B1 (en) 2000-11-28 2003-09-09 Abiomed, Inc. Cardiac assistance systems having multiple layers of inflatable elements
US6626821B1 (en) 2001-05-22 2003-09-30 Abiomed, Inc. Flow-balanced cardiac wrap
US8002691B2 (en) 2001-07-30 2011-08-23 Sunshine Heart Company Pty Ltd. Fluid pressure generating means
US7060023B2 (en) 2001-09-25 2006-06-13 The Foundry Inc. Pericardium reinforcing devices and methods of using them
US6695769B2 (en) 2001-09-25 2004-02-24 The Foundry, Inc. Passive ventricular support devices and methods of using them
US7354396B2 (en) 2001-09-25 2008-04-08 The Foundry, Inc. Passive ventricular support devices and methods of using them
US7976454B2 (en) 2002-01-07 2011-07-12 Paracor Medical, Inc. Cardiac harness
US8777833B2 (en) 2002-11-15 2014-07-15 Sunshine Heart Company Pty. Ltd. Heart assist device utilising aortic deformation
US7736299B2 (en) 2002-11-15 2010-06-15 Paracor Medical, Inc. Introducer for a cardiac harness delivery
US9555176B2 (en) 2002-11-15 2017-01-31 Sunshine Heart Company Pty, Ltd. Implantable device utilizing arterial deformation
US8469873B2 (en) 2003-10-30 2013-06-25 Sunshine Heart Company Pty Ltd Blood vessel wrap
US7862499B2 (en) 2003-10-30 2011-01-04 Sunshine Heart Company Pty Ltd Blood vessel wrap
US8571658B2 (en) 2003-10-31 2013-10-29 Sunshine Heart Company Pty Ltd Synchronization control system
US9119908B2 (en) 2003-10-31 2015-09-01 Sunshine Heart Company Pty. Ltd. Synchronization control system
US8425397B2 (en) 2003-10-31 2013-04-23 Sunshine Heart Company Pty Ltd Percutaneous gas-line
US7887478B2 (en) 2003-10-31 2011-02-15 Sunshine Heart Company Pty Ltd Percutaneous gas-line
US9561375B2 (en) 2003-10-31 2017-02-07 Sunshine Heart Company Pty, Ltd. Synchronization control system
US7955248B2 (en) 2003-11-11 2011-06-07 Sunshine Heart Company Pty Ltd Actuator for a heart assist device
WO2005044338A1 (en) * 2003-11-11 2005-05-19 Sunshine Heart Company Pty Ltd Actuator for a heart assist device
US8702583B2 (en) 2003-11-11 2014-04-22 Sunshine Heart Company Pty, Ltd. Actuator for a heart assist device
US7373851B2 (en) * 2004-07-29 2008-05-20 Siemens Aktiengesellschaft Pulsatile test simulator for evaluating the quality of an x-ray image
WO2007123997A2 (en) * 2006-04-19 2007-11-01 Beth Israel Deaconess Medical Center Pericardial reinforcement device
US9259318B2 (en) 2006-04-19 2016-02-16 Beth Israel Deaconess Medical Center Pericardial reinforcement device
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US8192351B2 (en) 2007-08-13 2012-06-05 Paracor Medical, Inc. Medical device delivery system having integrated introducer
US9042979B2 (en) 2010-04-02 2015-05-26 Sunshine Heart Company Pty Limited Combination heart assist systems, methods, and devices

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