101 results about "External counterpulsation" patented technology

A unitary external counterpulsation apparatus includes a curvilinear bed supported by a frame housing and fluid distribution assembly and control module. The bed includes a concave upper portion, a convex lower portion, and a saddle point therebetween. The fluid distribution assembly interconnects a plurality of inflatable devices adapted to be received about the lower extremities of a patient and a compressed fluid source. The control module controls distribution of compressed fluid from the source to the inflatable devices. Variable flow-rate valves optimize distribution of the compressed fluid.

The present invention provides an exterior counterpulsation (ECP) system that includes a garment for being worn on the exterior of a patient's body. The garment includes electroactive polymer (EAP) actuators connected thereto. In one embodiment, the EAP actuators are woven into the garment. In another embodiment, they are mounted to the garment surface.

A system and method for modulating cardiac blood flow of a patient by applying intermittent pressure on a limb of the patient, the system comprising a limb attachment, substantially surrounding the limb perimeter and an actuator pulling and releasing a flat member; a sensor for determining a physiological parameter relating to the patient; and a processing unit for receiving data from the sensor and issuing commands to the actuator.

An external counterpulsation apparatus and method for minimizing end diastolic pressure includes a fluid distribution assembly interconnecting a plurality of inflatable devices adapted to be received about the lower extremities of the patient and a source of compressed fluid to be distributed by the fluid distribution assembly to the inflatable devices. The controller in communication with the fluid distribution assembly controls inflation and deflation of the inflatable devices to minimize end diastolic pressure. The controller controls deflation of the inflatable devices without reducing venous return and then minimizes energy spent in ventricular isovolumetric contraction. Further, the controller controls inflation of the inflatable devices to inflate a distal inflatable device prior to inflating a proximal inflatable device. Further, the controller controls a plurality of inflation functions including rate of pressure applied, the magnitude of pressure applied, the duration of time that external pressure is applied, and the duration of time to deflate the inflatable devices.

The embodiments of the invention generally provide an external counterpulsation apparatus having an efficient cuff and bladder system. The embodiments generally allow effective treatment at lower pressures and a reduced total body surface area being compressed. An accurate and reliable combination of automatic and preset timing for inflation and deflation of the bladder system is used to simplify use of the 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 automatic and preset timing for inflation and deflation of the bladder system is used to simplify use of the apparatus.

The present invention provides an exterior counterpulsation (ECP) system that includes a garment for being worn on the exterior of a patient's body. The garment includes electroactive polymer (EAP) actuators connected thereto. In one embodiment, the EAP actuators are woven into the garment. In another embodiment, they are mounted to the garment surface.

A system for performing ECP and recording ECP system data, patient cardiac parameter data, and other data, and presenting the data in displays that are accessible to the operator in formats that assist in consistent treatment, interpretation of treatment data, and confirmation of therapeutic effect.

The present invention provides a high efficiency external counterpulsation apparatus having accurate and reliable timing of inflation and deflation and reduced temperature of the pressurized gas, such that the gas flow temperature of the inflatable devices is near to room temperature, as well as faster and more responsive inflation / deflation equipment. The external counterpulsation apparatus includes a plurality of inflatable devices received about the lower extremities of the patient, a source of compressed fluid in communication with said plurality of inflatable devices, and a fluid distribution assembly interconnecting said source of compressed fluid and said inflatable devices. The fluid distribution assembly includes a selectively operable inflation / deflation valve interconnected between each of said inflatable devices and said source of compressed fluid. The fluid distribution assembly separately operates each inflation / deflation valve to sequentially inflate and deflate each inflatable devices.

An all-in-one external counterpulsation apparatus and method for minimizing end diastolic pressure that includes an internally housed fluid distribution assembly interconnecting a plurality of inflatable devices adapted to be received about the lower extremities of a patient and an internally housed compressed fluid source to be distributed by the fluid distribution assembly to the inflatable devices. The apparatus includes a curvilinear table with apertures adapted to provide communication between the inflatable devices and the fluid source.

A method and system for treating a patient having an acute myocardial infarction. Such system may comprise at least one tank having a pressurized gas contained therein, at least one housing having a shell and being adapted to at least partially surround a body segment of the patient, a hose / valve device for supplying the compressed gas from the tank to the housing; and a control device for controlling the flow of compressed gas from the tank to the housing in accordance with cardiac systole and cardiac diastolic of the patient to vary the pressure in synchronization with the patient's heart function. The system may be arranged within a moving vehicle, such as an ambulance, an airplane, or a ship.

An external counter-pulsation device in accordance with the present invention includes a solenoid valve (1) and a cylinder (2). A gas-supplying pipe (4) is connected between the solenoid valve (1) and the cylinder (2), for supplying gas to the cylinder (2). A piston (21) is positioned inside the cylinder (2). The piston (21) is connected with a pushing board (3) via a pushing pole (22). A soft medium layer (6) is secured on the inside surface of the pushing board (3), for preventing the body (5) of a patient from being injured. The cylinder (2) is secured to a holding board (8). Two ends of a surrounding strip (7) are fastened to the holding board (8), for confining the body (5). The cylinder applies gas with high pressure, so the gas consumption can be reduced and the external counter-pulsation device of the present invention has improved treatment results.

An external counterpulsation apparatus includes a treatment table and a fluid distribution assembly operable to apply pressure to patient limbs. A first microprocessor controller disposed in the housing unit processes patient treatment data and controls application of pressure through the fluid distribution assembly. A second microprocessor controller external to the housing unit communicates with the first microprocessor controller and outputs data to a human operator. A variable frequency drive device cooperates with the first microprocessor to vary generation of a compressed fluid and distribute the compressed fluid at a flow rate corresponding to the patient treatment data. The fluid distribution assembly includes a plurality of inflatable devices interconnected with a plurality of valves, which deliver a variable flow rate of compressed fluid to the plurality of inflatable devices.

A patient support for an external counterpulsation cardiac assist procedure. The patient support includes: a base; and at least one support connected to the base for maintaining at least a portion of the patient above a tabletop during a positive pressure portion of the external counterpulsation cardiac assist procedure. In one embodiment, the base is a tabletop and the at least one support is movably supported on the table top in lateral and / or vertical directions. In another embodiment, the base is higher than the tabletop and the at least one support is a sling.

An apparatus for improving heart perfusion of a subject is provided. The apparatus includes at least one device designed capable of periodically reducing blood flow in at least one appendage of the subject; and a control unit for controlling an operation of the at least one device.

The invention relates to an external counterpulsation controlling system and an external counterpulsation controlling method. The external counterpulsation controlling system comprises an electrocardiosignal acquisition module, a finger pulse signal acquisition module, a signal processing module and a control module, wherein the electrocardiosignal acquisition module is used for acquiring an electrocardiosignal and converting the electrocardiosignal into a digital electrocardiosignal; the finger pulse signal acquisition module is used for acquiring a finger pulse signal and converting the finger pulse signal into a digital finger pulse signal; the signal processing module is used for processing the digital electrocardiosignal and the digital finger pulse signal and outputting a control parameter and a start command; and the control module is used for converting the control parameter and the start command into electrical signals of a driving execution device. The external counterpulsation controlling system is especially suitable for families to use.

The present invention provides a method for applying external counterpulsation to a patient, including detecting a blood-flow impedance signal, self-adaptive filter processing the detected blood-flow impedance signal, and adjusting inflation of an inflatable member based on the self-adaptive filter processing in order to optimize counterpulsation timing. The present invention further includes an external counterpulsation apparatus providing a high-frequency current source applied to the patient to produce an electrocardiographic signal and a blood flow impedance signal, as well as an amplifier-filter circuit to operably condition the electrocardiographic signal and a heart impedance signal amplifier receiving the blood flow impedance signal. A computer processes the signals and controls a fluid distribution device to distribute compressed fluid to a plurality of inflatable members based on said processed signals.

The invention discloses a cardiovascular external counterpulsation treatment device. The device comprises a bed body, at least four sets of vertical columns symmetrically distributed at equal intervals are arranged on the lower side of the bed body, a neck pillow is arranged on the upper side of the bed body, and back cushion plates are arranged on the side, close to the neck pillow, of the bed body; one end of a supporting rod is connected to the side, close to the back cushion plates, of the bed body, upper fixing supports are arranged in the middle positions of the interiors of first sliding grooves, lower fixing supports are arranged in the middle positions of the interiors of second sliding grooves, and one ends of first sliding shafts are connected to the sides, close to the first sliding grooves, of the upper fixing supports. The lower fixing supports and the upper fixing supports can move through the second sliding grooves and the first sliding grooves, so that adjustment is conducted based on the height of a patient; through design of first sliding discs and second sliding discs, angle adjustment can be conducted on the lower fixing supports and the upper fixing supports based on the need of the patient, and the patient gets more comfortable by means of the neck pillow and the back cushion plates.

A method of data management for optimizing the patient outcome from the provision of external counterpulsation (ECP) therapy is described. This method describes a process by which sets of dynamic cardiopulmonary dependent variables are measured during steady-state conditions, displayed, and translated into quantitative and qualitative measurements while the independent variables of ECP, cuff inflation duration and cuff inflation pressure settings of ECP systems, are altered by a physician. In combination with visual observation and computer-assisted ranking of the dependent variables, a physician can utilize the resulting information to render decisions on the optimal choice of the independent variables. The method will enable physicians to collect, view, track and manage complicated data using well-understood visualization techniques to better understand the consequences, acutely and chronically, of their therapeutic actions in general, and of their provision of ECP therapy in particular.

An image enhanced external counterpulsation system may be used to monitor a continuous real-time ultrasound image of the patient's heart during ECP therapy.

The invention relates to an intelligent domestic health-care instrument based on external counterpulsation control, and a control method thereof. The health-care instrument comprises an equipment body and an external counterpulsation control system arranged in the equipment body; the equipment body comprises a display panel, an external equipment connector, an internal air pump, an air pump connector, a leg sequential air-bag assembly, an air inlet pipe and an electromagnetic valve; the external counterpulsation control system comprises an electrocardiosignal acquisition module, a finger pulse signal acquisition module, a signal processing module, a pressure signal acquisition module, and an optimal control module. The intelligent domestic health-care instrument, provided by the invention, is small in size and light in weight, does not need a large air compressor or an air storage tank domestically used, also can avoid potential safety hazards brought by high-pressure devices, and can realize one-button start; the health-care instrument can enable more people to benefit from the technology more conveniently, and popularize the external counterpulsation theory to the disease prevention and home health-care field.

The invention discloses an electric external counterpulsation device, consisting of an electrocardiograph wave detector, a control host of the counterpulsation device and a servo system of the counterpulsation device; the electrocardiograph wave detector, the control host of the counterpulsation device and the servo system of the counterpulsation device are sequentially connected; wherein the electrocardiograph wave detector is used for detecting motion signals of the heart, the control host of the counterpulsation device processes the electrocardiosignals detected by the electrocardiograph wave detector and sends out the command signals for the action of the counterpulsation device, and the servo system of the counterpulsation device implements the command sent out by the control host of the counterpulsation device to realize external counterpulsation. The power source of the invention to realize counterpulsation motion is the electric external counterpulsation, that is to say, the mechanical energy for counterpulsation is directly supplied by a motor rather than the way that the motor drives an air compressor or an oil hydraulic press to transform electrical energy into fluid pressure. Compared with the prior art, the electric external counterpulsation device of the invention has the advantages of compact structure, small volume, little noise, realizable fine control and being suitable for household use, etc.

The invention discloses an executive device for external counterpulsation, which comprises a motor, an elliptic rotor, a rigid pushing plate and a motor controller, wherein the elliptic rotor is connected with a rotating shaft of the motor, the rigid pushing plate is used to wrap the legs of a user and is pressed against the elliptic rotor, and the motor controller is connected with the motor, receives a control signal to control the motor rotation, and maximizes the extrusion force applied by the elliptic rotor to the pushing plate during diastole. No longer using gas as a power source like the prior product, the device adopts a motor the motor and avoids the preparation of a large air compressor and a gas tank, thereby realizing small size and light weight and reducing the overall volume of the device for external counterpulsation.

The invention provides a method for evaluating the automatic regulation function of cerebral blood flow of an individual. The method comprises the following steps that 1, external counterpulsation operation is applied to the individual; 2, continuous blood pressure monitoring and cerebral blood flow speed monitoring are conducted on the individual before the external counterpulsation operation, during the external counterpulsation operation and after the external counterpulsation operation; 3, blood pressure changes and cerebral blood flow speed changes, responding to the external counterpulsation operation, of the individual are recorded, and the automatic regulation function of the cerebral blood flow of the individual is evaluated on the basis of the changes. The invention further provides a system for implementing the method.

A method of controlling an external counterpulsation apparatus includes selecting a patient treatment pressure; outputting a signal corresponding to the selected treatment pressure; detecting a pressure of a compressed fluid reservoir; comparing the selected treatment pressure to the compressed fluid reservoir pressure; and controlling a pressure regulator valve based on a difference between the patient treatment pressure and the compressed fluid reservoir pressure. The compressed fluid reservoir pressure may be decreased when the compressed fluid reservoir pressure is greater than a preset difference from the patient treatment pressure, particularly by venting the compressed fluid reservoir to atmosphere. The compressed fluid reservoir pressure may be necessary when the compressed fluid reservoir pressure is less than a preset difference from the patient treatment pressure, particularly by operating a compressor.

The present invention discloses a non-invasive rigid-support enhanced external counterpulsation device (RS-EECP) providing a precise onset of a blood flow characterized by a sharp-wave front, useful for out-patient treatment of arterial insufficiency states, especially angina; said RS-EECP comprising a timing means and a plurality of pressing cuffs; said timing means is adapted to onset the collapsing and expanding maneuvers of the cuffs in a sequence of occasions defined along the diastolic / systolic cycle; said cuffs are fastened around at least a portion of the circumference of at least one organ comprising a vascular bed to counterpulsate against an either fixed or maneuverable support; wherein said support is a rigid member; so as a quick expansion of said vessel bed, following a forceful and effective collapsing of the same is obtained.

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 automatic and preset timing for inflation and deflation of the bladder system is used to simplify use of the apparatus. Depressurization of the cuffs may occur in a staggered fashion.

The invention discloses an external counterpulsation device with precise control and actions. The external counterpulsation device consists of a precise dynamical system, a liquid packing and compressing device and a human body related information acquisition system; the dynamical system performs linear actions by matching a ball screw on a servo motor; the liquid packing and compressing device takes water as a medium, receives the power of the ball screw, and quickly transmits pressure to the surface of a human body to achieve the aim of counterpulsation; and the human body related information acquisition system precisely controls the compression and release of the counterpulsation by acquiring human body related information. The external counterpulsation device is characterized by that: 1, the action response is quick and controllable, the precise control and actions are realized, and equipment is not needed to be increased to quickly realize negative pressure; 2, components of equipment are greatly reduced to greatly reduce weight, volume and manufacturing cost; 3, the running noise is greatly reduced; 4, the system has precise and simple structure, stable running and low maintenance cost; and 5, the energy is only consumed when the device performs actions, and the energy is saved by over 50 percent. The innovations create conditions for the external counterpulsation to enter families for health care.