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| Number | Title | Issue Date |
| 7585322 | Cardiocirculatory aiding device A cardiocirculatory aiding device is disclosed generally comprising a housing with a cavity, an inlet, an outlet, and first and second sides with apertures therein, first and second shells mounted to the sides of the housing, and first and second membranes disposed ... | 09/08/2009 |
| 7361137 | Surgical procedures and devices for increasing cardiac output of the heart Methods and devices for passively assisting the cardiac function of the heart are disclosed. A method of increasing the cardiac output of a heart includes providing a site of surgical access to the portion of the heart to be restrained, reducing the cardiac expansio... | 04/22/2008 |
| 7244224 | Pump driving unit for driving a pump used for supporting or substitution of cardiac function In a small sized pump driving unit, a fluid pump is used for driving the pump for supporting of substituting of cardiac function. The fluid pump can generate pressure fluctuations that can generate pulsation of the pump for supporting or substituting of cardiac func... | 07/17/2007 |
| 7238165 | Fluid pump A pumping system 10 provides a physiological pulsatile flow and includes controller 121, a pump drive head 50 coupled to a motor 12 and a fluid housing 52 having at least one port 60. The port 60 includes a ball valve... | 07/03/2007 |
| 7217236 | Universal pneumatic ventricular assist device A pneumatic ventricular assist device (VAD) is disclosed for use in any circulatory support application including RVAD, LAVD, or BIVAD, trans-operative, short-term or long-term, tethered implantable or extracorporeal. In the preferred embodiment, the VAD consists of... | 05/15/2007 |
| 7160273 | Suction pump The suction pump is essentially comprised of three separate pump parts, namely of a drive unit located inside a main casing (1), of a collecting reservoir (8) and of a valve block (6), which is arranged directly between the casing (1) and... | 01/09/2007 |
| 7144365 | Implantable heart assist system and method of applying same An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and method of using same. One embodiment of the extracardiac system comprises a pump ... | 12/05/2006 |
| 7125376 | Implantable heart assist system and method of applying same An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system co... | 10/24/2006 |
| 7121291 | Check valve, auxiliary circulating device and method for driving the auxiliary circulating device A check valve includes a casing member, a tear-drop shaped ball member installed in the casing member, a latching member which is formed at an inner wall of the casing member and an airtight valve which is formed at an inner wall of the casing member. When forward f... | 10/17/2006 |
| 7066874 | Devices and methods for blood flow assistance Devices and methods are disclosed for assisting in blood flow from a weakened or injured heart, particularly for pediatric patients. A low profile, multi-chambered implantable mechanism is used to collect blood from a blood vessel and re-pump the blood out with an i... | 06/27/2006 |
| 6945998 | Corporal implantation device for assisting blood and heart ventricular circulation A dual pusher-plate blood pump implanted into the body with either mechanical or biological valves (17) for unidirectional blood circulation through a circulation variable chamber (blood chamber) (12) to assist circulation. LVAS comprises a receptacle ... | 09/20/2005 |
| 6770024 | Implantable counterpulsation cardiac assist device A hollow tubular element is inserted in the descending aorta. The caudad end contains a pressure sensitive passive or preferably, hydraulically or electrically activated, unidirectional valve. A flexible diaphragm situated in a rigid shell affixed over an opening in... | 08/03/2004 |
| 6709383 | Device for driving blood pumps A blood pump driving device which is capable of making a blood pump 10 free from an unbalance between loads when sucking and discharging, respectively and which makes it possible to eliminate a sensor positioned close to a patient, is made up of an oil reserv... | 03/23/2004 |
| 6540659 | Cardiac assistance systems having bi-directional pumping elements A unified, non-blood contacting, implantable heart assist system surrounds the natural heart and provides circumferential contraction in synchrony with the heart's natural contractions. The pumping unit is composed of adjacent tube pairs arranged along a ... | 04/01/2003 |
| 6540658 | Left-right flow control algorithm in a two chamber cardiac prosthesis A biventricular cardiac prosthesis has a flow balance control system to balance blood flow through the left and right sides of the prosthesis to maintain a patient's left atrial pressure within physiologic bounds. The prosthesis can be configured to have ... | 04/01/2003 |
| 6471633 | Mechanical auxillary ventricle blood pump with reduced waist portion An apparatus adapted to be inflated and deflated in response to selective communication with a source of pressurized fluid includes a bladder having a semi-rigid shell body portion and a relatively thin membrane portion defining an inflatable chamber. The... | 10/29/2002 |
| 6398715 | Apparatus for assisting systolic and diastolic cardiac function The present invention pertains to an apparatus for assisting a patient's heart operation. The apparatus comprises a mechanism for expanding and collapsing a right ventricle free wall of a heart of a patient. The apparatus also comprises a mechanism for po... | 06/04/2002 |
| 6238334 | Method and apparatus for assisting a heart to pump blood A ventricular cuff is designed to assist a heart to pump blood by applying uniform pressure to a majority portion of an exterior ventricular surface of the heart. A heart engaging structure is preferably provided for releasably engaging the heart to hold ... | 05/29/2001 |
| 6206820 | Device for supporting cardiac function having elastic filling chambers A device for assisting the functioning of a heart has elastic filling chambers attached to an elastic cover which can be placed at least partially around the heart. The filling chambers can be repetitively filled and emptied to exert mechanical pressure o... | 03/27/2001 |
| 6168624 | Apparatus and methods for revascularization and perfusion The invention is practiced by introducing a catheter (10)into the left ventricle of the heart. Deployment of an intraventricular pump assembly (12) from the end of catheter (10) is carried out by pushing holding device (24) in direction of the arrow (26).... | 01/02/2001 |
| 6001127 | Annuloplasty ring holder An annuloplasty ring and support assembly includes a ring support that has a peripheral wall with a peripheral shoulder surface, and a flange extending at generally right angles to the shoulder surface. The flange is removed or terminated in a selected po... | 12/14/1999 |
| 5971910 | Method and apparatus for assisting a heart to pump blood by applying substantially uniform pressure to the ventricles An apparatus and method for assisting a heart to pump blood includes a housing that defines an internal chamber for receiving a heart. The housing has a first opening to supply fluid to the internal chamber of the housing. Uniform pressure is applied to a... | 10/26/1999 |
| 5397349 | Muscle and air powered LVAD A method for providing ventricular assist to a patient with a weak or nonfunctional heart includes attaching an artificial ventricle to a patient and pumping said artificial ventricle with a muscle powered hydraulic pump. This method is enhanced by supple... | 03/14/1995 |
| 5332403 | LVAD with t-shape and unidirectional valve A ventricular assist device comprises an artificial ventricle including a blood compartment, a pumping compartment and a pumping membrane separating the respective blood and pumping compartments. A connecting T-shaped conduit is attached to the artificial... | 07/26/1994 |
| 5300113 | Cardiac ventricular assistance device particularly for compensating for weakened heart muscle function and for maintaining the vital body functions A single cardiac ventricular assistance device intended to integrate the ctions of a ventricular assistance device (V.A.D.) proper and of an aortic balloon pump (IABP) includes a single energy source which causes the simultaneous rhythmic contraction of ... | 04/05/1994 |
| 5192314 | Synthetic intraventricular implants and method of inserting A synthetic intraventricular implant device adapted to be surgically secured in a ventricle of the heart of a patient. The shape, size and volume of the device so inserted will depend on the size of the ventricle of the patient, and how much of the end-di... | 03/09/1993 |
| 5139517 | Orthotopic intraventricular heart pump An intraventricular pump (IVP) is a surgically-implanted orthotoxic heart pump capable of augmenting either one or both of the heart's ventricles. The IVP pumps blood using an internal diaphragm which is hydrualically activated by a physiologically-contro... | 08/18/1992 |
| 5135539 | Quick-connect, totally implantable cardiac prosthesis with floating membranes and removable sensitive elements This invention relates to an implantable cardiac prosthesis constituted by a quick-connect, one-piece module comprising two ventricular chambers, rendered biocompatible, independent and activated separately, each being provided with two orifices provided ... | 08/04/1992 |
| 5133744 | Tubular-valued artificial heart The artificial heart is designed for intrathoracic implantation, while its operation is effected by means of an extracorporeal control and energy feed system, form by a reduced console and interchangeable energy sectors and pneumatic sectors, also interch... | 07/28/1992 |
| 5089020 | Monoseptal, bi-ventricular artificial heart A total artificial heart, comprising a heart enclosure and an interior rigid septum attached at its periphery to the interior surface of the heart enclosure. This septum divides the heart into two separate pumping chambers corresponding to left and right ... | 02/18/1992 |
| 5089018 | Total heat prosthesis Total heart prosthesis including a casing implantable in the pericardial cavity, the geometry of which is similar to that of the natural heart, with a motor device inside the casing which essentially includes two membranes, one of which works during the e... | 02/18/1992 |
| 5089016 | Blood pump A blood pump having a toroidal shaped chamber concentrically positioned around a cylindrically shaped hydraulic pump. The toroidal chamber has two toroidal shaped portions, one portion having a substantially rigid external wall and the other having an ext... | 02/18/1992 |
| 4981484 | Modified elliptical artificial heart An artificial heart device for producing heart pumping action as part of a total artificial heart implant comprising a housing of elongate configuration enclosing a pumping volume of sufficient capacity to provide adequate blood flow within the living bei... | 01/01/1991 |
| 4976729 | Elliptical artificial heart An artificial heart device for producing heart pumping action as part of a total artificial heart implant comprising a semi-rigid housing of approximate ellipsoidal configuration which encloses a pumping volume divided into a blood chamber and a pumping c... | 12/11/1990 |
| 4902291 | Collapsible artificial ventricle and pumping shell An artificial ventricle for use as part of a total artificial heart for implantation within a living being as part of its circulatory system. The ventricle includes a soft and flexible blood pumping sac which can be collapsed to the substantially flattene... | 02/20/1990 |
| 4863461 | Artificial ventricle An artificial ventricle for replacing the human heart and comprising a shell formed from an upper housing and a lower base. A plurality of thin-walled, flexible pumping diaphragm layers are suspended from the base in a specific manner, and divide the shel... | 09/05/1989 |
| 4851002 | Couplable heart assistance modules The invention provides a prosthesis for mono or biventricular cardiac assistance implanted in the right hemi thorax between the diaphragm and the right lung. The prosthesis of the invention comprises for each module an outer shell (1) of revolution contai... | 07/25/1989 |
| 4846831 | Manual back-up drive for artificial heart A manual back-up emergency drive device for air driven artificial hearts, particularly for the "Jarvik-7" heart, is adapted to be instantly connected to the air drive lines for the heart in the event of power and air pressure failures and manually actuate... | 07/11/1989 |
| 4838889 | Ventricular assist device and method of manufacture A ventricular assist device and a method of manufacturing the ventricular assist device. The device is generally flat in shape and gently curved so that it may be comfortably implanted under the skin or inside the chest of a patient. The device includes a... | 06/13/1989 |
| 4781715 | Cardiac prosthesis having integral blood pressure sensor An integral blood pressure sensor for a cardiac prosthesis of the type having a fluid chamber and a blood chamber separated by a flexible diaphragm which is actuated by a drive fluid pulsatingly supplied to the fluid chamber for pumping blood from the blo... | 11/01/1988 |
