Patent application number | Description | Published |
20080234588 | Method and Apparatus for Determining Cardiac Performance in a Patient with a Conductance Catheter - An apparatus for determining cardiac performance in the patient involving a conductance catheter ( | 09-25-2008 |
20090043198 | MAGNETO-MOTIVE ULTRASOUND DETECTION OF MAGNETIC NANOPARTICLES - Provided herein are systems, methods and compositions for the use of ultrasound for detection of cells and nanoparticles. | 02-12-2009 |
20090210020 | Method and Apparatus for Determining Cardiac Performance in a Patient - An apparatus for determining heart transplant rejection of a heart in a patient includes at least two electrodes adapted to be sewn into the heart that span the left ventricle. The apparatus includes a voltage generator adapted to be inserted in the patient which generates a voltage to the two electrodes and senses the resulting voltage from the two electrodes. A method for determining heart transplant rejection of a heart in a patient. A pacemaker for a patient (including bi-ventricular pacing and AICDs). The pacemaker includes an RV lead having four electrodes adapted to be inserted into the RV apex. The pacemaker includes a voltage generator which generates a voltage signal to the electrodes and senses the instantaneous voltage along the length of the RV and determines the real and imaginary components to remove the myocardial components of the septum and RV free wall to determine absolute RV blood volume. The pacemaker includes a battery connected to the voltage generator. The pacemaker includes a defibrillator connected to the battery. The pacemaker can also be a bi-ventricular pacemaker to restore RV and LV synchrony during contraction. A method for assisting a heart of a patient. | 08-20-2009 |
20100160994 | CARDIOVASCULAR POWER SOURCE FOR AUTOMATIC IMPLANTABLE CARDIOVERTER DEFIBRILLATORS - Aspects according to the present invention provide a method and implant suitable for implantation inside a human body that includes a power consuming means responsive to a physiological requirement of the human body, a power source and a power storage device. The power source comprises a sheathed piezoelectric assembly that is configured to generate an electrical current when flexed by the tissue of the body and communicate the generated current to the power storage device, which is electrically coupled to the power source and to the power consuming means. | 06-24-2010 |
20100168587 | CATHETER IMAGING PROBE AND METHOD - A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit. | 07-01-2010 |
20100280397 | Method and apparatus for monitoring an organ of a patient - An apparatus for determining tissue versus fluid components of an organ include a detector that generates a detector signal based on electrical signals derived from tissue and fluid. The apparatus includes a signal processor in communication with the detector which subtracts in real time a tissue component from the detector signal and produces a fluid volume signal. A method for monitoring a patient's fluid volume of a patient's organ. An apparatus for monitoring a patient's organ. A method for monitoring a patient's organ. A method to piggyback an admittance system onto a AICD/Bi-ventricular Pacemaker for a heart of a patient, in particular a weakened heart having features consistent with congestive heart failure. An apparatus for monitoring an organ, such as a heart, lungs, brain, skeletal muscle, and bladder of a patient which includes a detector which detects the admittance of the organ. The apparatus includes a transmitter in communication with the detector which transmits a wireless signal indicative of the admittance of the organ. A method for monitoring an organ of a patient includes the steps of detecting with a detector the admittance of the organ. There is the step of transmitting with a transmitter in communication with the detector a wireless signal indicative of admittance of the organ. | 11-04-2010 |
20100298716 | METHODS AND COMPOSITIONS TO REDUCE SCATTERING OF LIGHT DURING THERAPEUTIC AND DIAGNOSTIC IMAGING PROCEDURES - Disclosed are improved methods and compositions for use in light-based in vivo imaging and treatment. The techniques described involve the use of low-scattering, oxygen-carrying blood substitutes in imaging and treatment methods, including OCT imaging. The invention has particular advantages in imaging within the cardiovascular system and highly vascularized or oxygen-dependent tissues. | 11-25-2010 |
20110009701 | OCT USING SPECTRALLY RESOLVED BANDWIDTH - The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically. The multichannel optical coherence tomographic methods can be incorporated into an endoscopic probe for imaging a patient. The endoscope comprises an optical fiber array and can comprise a plurality of optical fibers adapted to be disposed in the patient. The optical fiber array transmits the light from the light source into the patient, and transmits the light reflected by the patient out of the patient. The plurality of optical fibers in the array is in optical communication with the light source. The multichannel optical coherence tomography system comprises a detector for receiving the light from the array and analyzing the light. The methods and apparatus may be applied for imaging a vessel, biliary, GU and/or GI tract of a patient. | 01-13-2011 |
20110152661 | Method and apparatus for identifying the viability of ischemic myocardium of a patient - A method for identifying the viability of ischemic myocardium of a patient. The method includes the steps of measuring in real-time the ischemic myocardium of a beating or non-beating heart. There is the step of determining in real-time whether the ischemic myocardium of the beating or non-beating heart is stunned or is nonviable. An apparatus for identifying the viability of ischemic myocardium of a patient's heart. The apparatus includes an electrode array having at least four electrodes for electrical communication with the heart which produces an array signal. The apparatus includes a processor portion in communication with the array which receives the array signal and determines in real-time whether the ischemic myocardium of the heart is stunned or is nonviable. An apparatus for analyzing living tissue. The apparatus includes an electrode array having at least four electrodes for electrical communication with the tissue which produces an array signal. The apparatus includes an admittance magnitude and phase detection circuit in communication with the array which receives the array signal from the array and produces a detection circuit signal corresponding to phase angle and magnitude of the array and signal. The apparatus includes a processor in communication with the detection circuit which receives the detection circuit signal and determines permittivity and conductivity of the tissue in real-time. A method for analyzing living tissue. | 06-23-2011 |
20110196250 | Method and apparatus for determining cardiac performance in a patient with a conductance catheter - An apparatus for determining cardiac performance in the patient. The apparatus includes a conductance catheter for measuring conductance and blood volume in a heart chamber of the patient. The apparatus includes a processor for determining instantaneous volume of the ventricle by applying a non-linear relationship between the measured conductance and the volume of blood in the heart chamber to identify mechanical strength of the chamber. The processor is in communication with the conductance catheter. Methods for determining cardiac performance in a patient. Apparatuses for determining cardiac performance in a patient. | 08-11-2011 |
20110275947 | CARDIOVASCULAR POWER SOURCE FOR AUTOMATIC IMPLANTABLE CARDIOVERTER DEFIBRILLATORS - Aspects according to the present invention provide a method and implant suitable for implantation inside a human body that includes a power consuming means responsive to a physiological requirement of the human body, a power source and a power storage device. The power source comprises a piezoelectric assembly that is configured to generate an electrical current when flexed by the tissue of the body and communicate the generated current to the power storage device, which is electrically coupled to the power source and to the power consuming means. | 11-10-2011 |
20120150252 | Admittance measurement for tuning bi-ventricular pacemakers - An apparatus for treating a heart of a patient includes a first lead and at least a second lead for pacing the heart adapted to be in electrical communication with the heart. The apparatus includes a microcontroller in communication with the first and second leads which triggers the first lead at either different times or the same time from when the microcontroller triggers the second lead. Alternatively, the apparatus includes a microcontroller in communication with the first and second leads that determines heart volume, including stroke volume, end-systolic volume, and calculated values including ejection fraction, from admittance from signals from the first and second leads and uses the admittance as feedback to control heart volume ejected, as measured by stroke volume, calculated values such as ejection fraction, and control end-systolic volume, with respect to the first and second leads. A method for treating the heart of a patient. | 06-14-2012 |
20130023714 | Medical and Imaging Nanoclusters - In one embodiment the present invention discloses a nanocluster or a nanorose composition comprising two or more closely spaced nanoparticles each comprising one or more metals, metal oxides, inorganic substances, or a combination thereof and one or more stabilizers. The stabilizers are in contact with the two or more closely spaced nanoparticles to form a nanocluster composition in which the inorganic weight percentage is greater than 50% and the average size is below 300 nm, and the nanocluster composition has magnetic properties, optical properties or a combination of both. | 01-24-2013 |
20130023946 | Low Power Apparatus and Method to Measure Complex Electrical Admittance or Impedance - An apparatus for measuring complex electrical admittance and/or complex electrical impedance in animal or human patients includes a first electrode and at least a second electrode which are adapted to be disposed in the patient. The apparatus includes a housing adapted to be disposed in the patient. The housing has disposed in it a stimulator in electrical communication with at least the first electrode to stimulate the first electrode with either current or voltage, a sensor in electrical communication with at least the second electrode to sense a response from the second electrode based on the stimulation of the first electrode, and a signal processor in electrical communication with the sensor to determine the complex electrical admittance or impedance of the patient. | 01-24-2013 |
20130331701 | MAGNETO-MOTIVE ULTRASOUND DETECTION OF MAGNETIC NANOPARTICLES - Provided herein are systems, methods and compositions for the use of ultrasound for detection of cells and nanoparticles. | 12-12-2013 |
20130338495 | OCT USING SPECTRALLY RESOLVED BANDWIDTH - The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically. The multichannel optical coherence tomographic methods can be incorporated into an endoscopic probe for imaging a patient. | 12-19-2013 |
20140257121 | Method and Apparatus for Monitoring an Organ of a Patient - An apparatus for determining tissue versus fluid components of an organ include a detector that generates a detector signal based on electrical signals derived from tissue and fluid. The apparatus includes a signal processor in communication with the detector which subtracts in real time a tissue component from the detector signal and produces a fluid volume signal. A method for monitoring a patient's fluid volume of a patient's organ. An apparatus for monitoring a patient's organ. A method for monitoring a patient's organ. A method to piggyback an admittance system onto a AICD/Bi-ventricular Pacemaker for a heart of a patient, in particular a weakened heart having features consistent with congestive heart failure. An apparatus for monitoring an organ, such as a heart, lungs, brain, skeletal muscle, and bladder of a patient which includes a detector which detects the admittance of the organ. The apparatus includes a transmitter in communication with the detector which transmits a wireless signal indicative of the admittance of the organ. A method for monitoring an organ of a patient includes the steps of detecting with a detector the admittance of the organ. There is the step of transmitting with a transmitter in communication with the detector a wireless signal indicative of admittance of the organ. | 09-11-2014 |