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Class 600/17 - With condition responsive means


Subclass of Class 600 - Surgery
Definition: Subject matter wherein the means for varying the rate or
No. of patents: 236
Last issue date: 04/24/2012


1            
NumberTitleIssue Date
8162813Method and device for the intermittent occlusion of a vein draining the organ system
In a method for the intermittent occlusion of a vein draining the organ system, in which the vein is occluded by an occlusion device, the fluid pressure in the occluded vein is continuously measured and stored, the behavior of the fluid pressure is determined as a f...
04/24/2012
8142343Suprapatellar external counterpulsation apparatus
An external counterpulsation apparatus has an efficient cuff and bladder system. Embodiments of this system generally allow effective treatment at lower pressures and a reduced total body surface area being compressed. An accurate and reliable combination of automat...
03/27/2012
8075472Permanent ventricular assist device for treating heart failure
The invention is a kit for a permanent ventricular assist device that can be permanently implanted into the circulatory system of a patient. The kit comprises one or more passive cores (Pcore), a stator, a power supply, and a controller unit. The inventors have real...
12/13/2011
8066628Intra-aortic balloon pump and driver
Devices and methods are disclosed for implanting, positioning, removing, replacing and operating intra-aortic balloon pumps. ...
11/29/2011
RE42958Devices and methods for non-invasively improving blood circulation
Circulatory assistance is provided in a non-invasive procedure safely and effectively using a microprocessor of an external counter pulsation device programmed to control the actuation of any or all of a plurality of valves, each of which is mounted on and in fluid ...
11/22/2011
7988614Organ assist system and method
An organ assist system having a closed fluid system having a ring-shaped prosthetic contactively surrounding at least a portion of a body part, including bladders adapted for selectable dilation and contraction in response to varying fluid pressure therewithin, a fl...
08/02/2011
7963905Control system for a blood pump
A method of controlling the speed of a blood pump, wherein the method includes the steps of deriving an estimated pulsatility index from speed, then deriving an estimated blood pressure from estimated pulsatility index; and maintaining target blood flow rate near to...
06/21/2011
7951062Blood pump system and method of operation
A blood pump system includes a blood pump having a motor with a rotor and a stator. The stator has a plurality of stator windings situated therein. A motor controller is coupled to the motor, and a processor has inputs coupled to the motor controller for receiving a...
05/31/2011
7828711Method and apparatus for modulating cellular growth and regeneration using ventricular assist device
A system delivers combined ventricular assist device (VAD) therapy and chemical and/or biological therapy to modulate myocardial tissue growth in a heart after myocardial infarction (MI). The system includes an agent delivery device to release one or more agents to ...
11/09/2010
7766814Vessel or sac wall treatment and a cardiac assist device
The present invention provides a device and method of treating a vessel in a human or animal body. ...
08/03/2010
7666131Peri-arterial blood flow booster
A peri-arterial blood flow booster apparatus for improving blood pressure and flow, to be implanted around a blood vessel of a patient. The booster comprises a pressure applying device (56) comprising at least one balloon (44), placed alongside a porti...
02/23/2010
7662086Detection and/or monitoring of diastolic heart failure
In an implantable medical device for detecting and/or monitoring the progression of diastolic heart failure (DHF), and a corresponding method, a parameter is measured that is indicative of left ventricular ejection fraction (LVEF), and a variable is also measured th...
02/16/2010
7645225Chronic performance control system for rotodynamic blood pumps
In a left ventricular assist device (LVAD) a rotodynamic blood pump (10) is powered by a brushless DC motor (12). A power supply (14) supplies power to the motor (12). Three feedback channels, one for each of voltage, current, and motor s...
01/12/2010
7614998Fully-implantable cardiac recovery system
Apparatus (20) is provided including an inflatable bladder (40), adapted to be coupled to a blood vessel (22) of a subject (18) carrying oxygenated blood, such that an interior of the bladder (40) is in fluid communication with the...
11/10/2009
7597659Suprapatellar external counterpulsation apparatus
An external counterpulsation apparatus has an efficient cuff and bladder system. Embodiments of this system generally allow effective treatment at lower pressures and a reduced total body surface area being compressed. An accurate and reliable combination of automat...
10/06/2009
7563225Artificial heart pump system and its control apparatus
An artificial heart pump system wherein the load of a processor in a controller used for a blood pump system is reduced and the performance of the hardware is maintained or guarantied, and the artificial heart pump system is provided independently with a controlling...
07/21/2009
7520850Feedback control and ventricular assist devices
Various devices, systems and methods for providing effective, long term and reliable use of pressure feedback in VADs. Exemplary embodiments are described which provide for direct LV pressure measurement, non-invasive calibration techniques to detect ventricular col...
04/21/2009
7494459Sensor-equipped and algorithm-controlled direct mechanical ventricular assist device
A process for assisting the function of a heart disposed within a body, and comprising an outer wall, comprising the steps of measuring at least one parameter that is indicative of the function of the heart, applying a compressive force to a portion of the outer wal...
02/24/2009
7410459Cardiac support device and method
The invention relates to a cardiopulmonary bypass pump that can be used with medication to put the heart into asystole or near asystolic status. The patent describes equipment used in conjunction with medication to temporarily replace the function of the heart and t...
08/12/2008
7396327Blood pump system and method of operation
A blood pump system includes a blood pump having a motor with a rotor and a stator. The stator has a plurality of stator windings situated therein. A motor controller is coupled to the motor, and a processor has inputs coupled to the motor controller for receiving a...
07/08/2008
7374574Device for axially conveying body fluids
The invention relates to a device for axially conveying body fluids. The aim of the invention is to embody the inflow and outflow area of an axial pump in such a way that the flow is not separated even when it is diverted, thereby maintaining a substantially non-dis...
05/20/2008
7373207Treatments for a patient with congestive heart failure
The invention is directed to devices for two minimally invasive therapeutic procedures, particularly for patients with congestive heart failure. One procedure involves providing a valve to form a passageway through the patient's left ventricular wall at the apex of ...
05/13/2008
7367959Device for cardiocirculatory assistance
A device for cardiocirculatory assistance, also named a ventricular assist device, includes a haematic pump (50) with a pump body (7) having an inner space (21) defined by a rigid structure (51) and a pair of mobile membranes (16, 17
05/06/2008
7361137Surgical 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
7347810Device for draining the coronary sinus
A device for draining a coronary sinus comprises a first catheter having a distal end, a proximal end, and a passage there through, the distal end adapted to be placed in a coronary sinus, a second catheter having a distal end, a proximal end, and a passage there th...
03/25/2008
7338517Tissue scaffold having aligned fibrils and artificial tissue comprising the same
A tubular tissue scaffold is described which comprises a tube having a wall, wherein the wall includes biopolymer fibrils that are aligned in a helical pattern around the longitudinal axis of the tube where the pitch of the helical pattern changes with the radial po...
03/04/2008
7338521Low profile inlet for an implantable blood pump
A low profile pump inlet for an implantable blood pump is disclosed. The low profile pump inlet has an inflow diffuser for attachment to a conduit bearing an inflow of a fluid such as blood and an outflow orifice in fluid connection with the diffuser. The outflow or...
03/04/2008
7338436Implantable cardiac physical motion mapping device
An elastic framework configured to be positioned around a portion of the heart has a plurality of first regions and a plurality of second regions positioned relative to the first regions. The framework allows for the positioning of the first regions and second regio...
03/04/2008
7338434Method and system for organ positioning and stabilization
This invention provides a heart positioning device, method and system for positioning, manipulating, holding, grasping, immobilizing and/or stabilizing a heart. The heart positioning device may include a suction head and a shaft with a means for remotely changing th...
03/04/2008
7331922Method and device for the intermittent occlusion of the coronary sinus
A method and apparatus are provided for the intermittent occlusion of a coronary sinus. The method includes occluding the coronary sinus with an occlusion device, continuously measuring the fluid pressure in the occluded coronary sinus and defining measured pressure...
02/19/2008
7320665Cardiac Ventricular Geometry Restoration Device and Treatment for Heart Failure
Methods for cardiac ventricular restoration include delivering an implantable expandable device into the ventricle via a catheter. The expandable device is anchored either to the wall of the left ventricle or to the inter-ventricular septum and then expanded. When e...
01/22/2008
7320320Determination of patency of the airway
Methods and apparatus for determining the occurrence of an apnea, patency and/or partial obstruction of the airway are disclosed. Respiratory air flow from a patient is measured to give an air flow signal. The determination of an apnea is performed by calculating th...
01/22/2008
7311724Method for controlling a patient's body temperature
The present invention provides a method and apparatus for controlling the internal body temperature of a patient. According to the present invention, a catheter is inserted through an incision into a large blood vessel of a patient. By selectively heating or cooling...
12/25/2007
7303581Artificial heart using magnetohydrodynamic propulsionh
An implantable artificial heart apparatus which has no moving parts. It employs the technology of magnetohydrodynamics (MHD) to induce flow of human blood. An MHD propulsion unit is a device which applies magnetic and electric fields to blood to propel the conductiv...
12/04/2007
7294278Method for oxygenating wastewater
A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo...
11/13/2007
7291105Self-anchoring cardiac harness
A self-anchoring cardiac harness is configured to fit at least a portion of a patient's heart and includes a tissue engaging element for frictionally engaging an outer surface of a heart. The engaging element produces sufficient friction relative to the outer surfac...
11/06/2007
7284956Methods and apparatus for controlling a continuous flow rotary blood pump
A control system for a continuous flow rotary blood pump is provided. A normal operating range of the blood pump is established. The normal operating range may comprise a normal pump flow range and a normal pressure head range. A target rotational speed of the pump ...
10/23/2007
7273446Methods, devices and systems for counterpulsation of blood flow to and from the circulatory system
Counterpulsation methods and systems for assisting the heart of a patient involve, for example, coordinating the operation of a pulsatile pump to suction blood from an artery through a first conduit while the heart is in systole and expel the blood into the first co...
09/25/2007
7272433Transcutaneous monitor and method of use, using therapeutic output from an implanted medical device
An external physiologic or implanted device monitor/controller (“monitor”) designed to be attached to the body, as for example, to the skin of the patient. The monitor is designed to detect the therapeutic outputs actually produced by the implanted medical devic...
09/18/2007
7269460Method and apparatus for evaluating and optimizing ventricular synchronization
A method and apparatus for determining a metric of cardiac ventricular synchronization and optimizing a cardiac therapy based on the ventricular synchronization metric are provided. A ventricular synchronization metric is determined by: monitoring right and left ven...
09/11/2007
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