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| Number | Title | Issue Date |
| 7551965 | System and method for removing narrowband noise A system and method for removing narrowband noise from an input signal in which notch filters having notch frequencies corresponding to the noise are dynamically adjusted in accordance with a detected noise spectrum. The method may be applied to telemetry systems fo... | 06/23/2009 |
| 5374281 | Hysteresis in a rate-responsive pacemaker A rate-responsive pacemaker includes programmable hysteresis means for automatically extending an escape interval, EI0, in the presence of sensed intrinsic cardiac activity, and returning the escape interval to its initial value in the presence... | 12/20/1994 |
| 5368034 | Method and apparatus for thrombolytic therapy A method and system for facilitating thrombolytic therapy includes a perfusion tube, in the form of an infusion guidewire or catheter, for delivering a lytic agent at a thrombosis. The perfusion tube includes, as an integral part thereof, at its distal en... | 11/29/1994 |
| 5360007 | Ultrasonic apparatus An ultrasonic apparatus for transmitting ultrasonic waves and receiving reflection waves from an examination subject for display is used in a blood vessel with a catheter for two-dimensional imaging and three-dimensional scanning for three-dimensional ima... | 11/01/1994 |
| 5355891 | ECG analyzer Apparatus for analyzing ECG signals from a patient in the form of a data stream comprises a data stream monitor to locate for each heart beat a trigger point (26,37,25) having a constant temporal displacement with respect to the location of a portion of t... | 10/18/1994 |
| 5351691 | Endoscopic probe An endoscopic probe suitable for use as a TEE-probe, comprising a flexible tube having at one end a probe head which is provided with a phased array type ultrasonic transducer comprising a number of elongated transducer elements which elements can be indi... | 10/04/1994 |
| 5350412 | Device for reducing power consumption in medical equipment which is implantable in the human body A device for reducing power consumption in medical electrical equipment, implantable in the human body, having a sensor, which includes a sensor element and sensor electronic circuitry for sensing a parameter relevant to control of the equipment's in vivo... | 09/27/1994 |
| 5350402 | Atrial defibrillator and method for providing T wave detection and interval timing prior to cardioversion An implantable atrial defibrillator and method provides cardioverting electrical energy to the atria of a human heart in need of cardioversion. The atrial defibrillator includes a first detector for detecting R waves of the heart, a second detector for de... | 09/27/1994 |
| 5350415 | Device for trophic stimulation of muscles A devise for trophic stimulation of muscles is provided. The device contains a pulse generation circuit that mimics the Motor Unit Action Potentials, MUAP's that are naturally generated when muscles are innervated. The invention provides the basic method ... | 09/27/1994 |
| 5343864 | Ultrasonic diagnostic apparatus The present invention relates to an improvement of a delay control circuit of an ultrasonic diagnostic apparatus and is intended to provide a circuit configuration capable of utilizing a cyclicity of combination of signal lines, to absorb variations of a ... | 09/06/1994 |
| 5341808 | Doppler ultrasound clutter and sensitivity phantom A clutter and sensitivity phantom for calibrating an acoustic beam generating clinical Doppler ultrasound instrument, comprising: a fluid-filled tank into which the ultrasound instrument probe is immersed; first and second sound scattering belts; an acous... | 08/30/1994 |
| 5341814 | Method for measuring the temperature of a material by using microwave radiation The invention relates to a method and a device for measuring the temperature Tx of any material or object, by using a microwave radiation, as well as to an application of said method for determining the coefficient of hyperfrequency reflection ... | 08/30/1994 |
| 5342408 | Telemetry system for an implantable cardiac device A telemetry system and method of monitoring cardiac activity or providing therapy to the heart for an implantable cardiac device. The system includes a receiver and a transmitter in an external programmer and a receiver section and transmitter section in ... | 08/30/1994 |
| 5342413 | Medical electrode arrangement An electrode arrangement for in vivo stimulation of tissue with electrical energy has a catheter containing an electrical lead, the lead and the catheter being electrically and mechanically connected to further electrical conductors, arranged in a configu... | 08/30/1994 |
| 5339804 | Ultrasonic bathing system An ultrasonic bathing system comprising a bathtub for containing a bathing fluid, an ultrasonic transducer mounted on said bath, means for energizing said transducer to generate ultrasonic waves in the bathing fluid at a power and frequency for providing ... | 08/23/1994 |
| 5339816 | Ultrasonic doppler blood flow monitoring system A ultrasonic Doppler blood flow monitoring system is disclosed. The ultrasonic Doppler blood flow monitoring system comprises: a catheter to be inserted into a blood vessel; at least two ultrasonic transducers provided on the catheter and arranged for tra... | 08/23/1994 |
| 5335662 | Image pickup system comprising signal processing device which uses exclusive adaptor in probes different in image pickup system from each other A plurality of probes having image pickup elements differing from each other in image pickup system from each other are used to display an image image-picked-up on a monitor, and a connector of the used image pickup probe is connected to an exclusive adap... | 08/09/1994 |
| 5336242 | Band-pass filter for use in a sense amplifier of an implantable cardiac pacer A low-power band-pass filter for use in a cardiac pacer includes a single operational amplifier connected in circuit relationship with a plurality of switched capacitors that function as bilinear resistors. Each bilinear resistor comprises a switch for co... | 08/09/1994 |
| 5335663 | Laparoscopic probes and probe sheaths useful in ultrasonic imaging applications The invention relates to a medical ultrasonic imaging probe, such as may be used in laparoscopic surgery. A probe is provided having both forward viewing and side viewing ultrasonic capabilities. An apparatus is provided for manipulating and orienting vid... | 08/09/1994 |
| 5334221 | Method and apparatus for treatment of angina same A stimulator for providing stimulus pulses to the SA nodal fat pad, in response to heart rate exceeding a predetermined level, in order to reduce the ventricular rate. The device is also provided with a cardiac pacemaker to pace the ventricle in the event... | 08/02/1994 |
| 5333613 | Microparticles as ultrasonic contrast media Ultrasonic contrast media are provided comprising small particles with entrapped gas, where the compositions can be selected for rapid dissolution with production of microbubbles or maintaining the gas in microtubules, microchambers or microcracks, provid... | 08/02/1994 |
| 5331964 | Ultrasonic phased array imaging system with high speed adaptive processing using selected elements Disclosed is an ultrasonic phased array imaging system which includes a normal mode and an adaptive mode of operation. The adaptive mode adjusts the delay associated with each element in the transducer such that the average image brightness of the region ... | 07/26/1994 |
| 5331962 | Ultrasound system for corneal biometry An ultrasonic biometer images an eye structure and enables measurement of a cornea's thickness at various points about the cornea's surface curvature. The biometer employs a liquid bath in contact with the corneal surface and includes a curved track posit... | 07/26/1994 |
| 5330507 | Implantable electrical vagal stimulation for prevention or interruption of life threatening arrhythmias A method and apparatus for stimulating the right or left vagus nerve with continuous and/or phasic electrical pulses, the latter in a specific relationship with the R-wave of the patient's electrogram. The automatic detection of the need for vagal stimula... | 07/19/1994 |
| 5329927 | Apparatus and method for locating an interventional medical device with a ultrasound color imaging system A VIBER vibrating mechanism is coupled to a cannula or needle and operates to provide flexural vibrations to move the needle and to enable detection of the position of a needle within a body of interest by a color ultrasound imaging system. The VIBER mech... | 07/19/1994 |
| 5329930 | Phased array sector scanner with multiplexed acoustic transducer elements A phased array sector scanning ultrasonic imaging system includes a transducer array with 2N separate transducer elements and a transmitter and receiver with N separate channels. The complete 2N element aperture is realized at each beam angle with two fir... | 07/19/1994 |
| 5327885 | Combination catheter for invasive probe delivery and balloon dilation A catheter for delivering both a probe and a balloon to a lumen in a subject. The probe is most preferably an ultrasonic imaging probe and the balloon a dilation balloon. The catheter comprises, at a proximal end, a triple lumen section that comprises a g... | 07/12/1994 |
| 5327892 | Ultrasonic imaging system An ultrasonic imaging system includes an ultrasonic probe for transmitting and receiving an ultrasonic wave, a driver unit for driving the ultrasonic probe, a detector unit for detecting an echo signal received by the ultrasonic probe, a filter unit opera... | 07/12/1994 |
| 5327894 | Wall filter using circular convolution for a color flow imaging system An ultrasonic imaging system includes a receiver which demodulates the echo signals received by a transducer array and dynamically focuses the baseband echo signals, and a color flow processor which includes an adaptive wall filter in the form of a circul... | 07/12/1994 |
| 5329194 | Ultrasonic peripheral vascular probe assembly An ultrasonic probe has a housing, a base pivotally mounted within the housing, an extension formed upon the base, and a scanning ultrasonic transducer disposed upon the distal end of the extension. The extension is preferably configured such that the sca... | 07/12/1994 |
| 5325858 | Ultrasonic imaging system capable of varying maximum pulse repetition frequency depending upon pulse transmission frequency In an ultrasonic imaging system, a desirable ultrasonic image of an interior portion of a biological body scanned by ultrasonic pulses is obtained without occurrences of residual ultrasonic echoes and idle time. The ultrasonic imaging system includes an u... | 07/05/1994 |
| 5325859 | Ultrasonic diagnosis apparatus An ultrasonic diagnosis apparatus comprises an ultrasonic wave transmitting/receiving unit for transmitting ultrasonic signals to a subject and receiving reflected echo signals reflected from the subject; a unit for controlling the ultrasonic wave transmi... | 07/05/1994 |
| 5323781 | Methods for the diagnosis and ablation treatment of ventricular tachycardia A closed-heart method for treating ventricular tachycardia in a myocardial infarct patient afflicted with ventricular tachycardia is disclosed. The method comprises, first, defining a thin layer of spared myocardial tissue positioned between the myocardia... | 06/28/1994 |
| 5322067 | Method and apparatus for determining the volume of a body cavity in real time A method and apparatus for determining the volume of a fluid-filled cavity in a patient's body in real time from an ultrasound image. An ultrasound display of the cavity and the surrounding tissue is obtained. The ultrasound display includes a sequence of... | 06/21/1994 |
| 5322066 | Discretely modifiable imaging in ultrasonic diagnostic equipment In ultrasonic diagnostic equipment processing signals echo-reflected from ultrasonic pulses beamed into a patient and providing composite display of patient-related diagnostic information including organic information, the comprehensive diagnostic informa... | 06/21/1994 |
| 5322068 | Method and apparatus for dynamically steering ultrasonic phased arrays A phased array ultrasonic imaging system including a transducer array for transmitting pulses of ultrasound energy in a transmitting mode and for receiving reflected ultrasound energy in a receiving mode, a transmit control circuit, coupled to and control... | 06/21/1994 |
| 5320109 | Cerebral biopotential analysis system and method Disclosed is a real time diagnostic apparatus and method quantitatively evaluating, in a noninvasive manner, cerebral phenomena. Surface electroencephalographic (EEG) signals are obtained and filtered in a desired frequency range. Digital EEG data is norm... | 06/14/1994 |
| 5320106 | Intracavitary diagnosing apparatus employing ultrasound An intracavitary diagnosing apparatus employs an ultrasonic probe whose focused range can be moved. In the ultrasonic probe are disposed an ultrasonic transducer and an ultrasonic mirror for reflecting ultrasound. The relative distance between the ultraso... | 06/14/1994 |
| 5320105 | Ultrasonic echograph for measuring high velocities of blood flows An echograph includes a transmission stage (20), a circuit (31) for suppressing fixed echos, and a correlation-interpolation circuit (33). The the transmission stage (20) transmits a pulsed signal having two neighboring, alternating recurrent periods T1 | 06/14/1994 |
| 5318037 | Method and apparatus for performing mapping-type analysis including use of limited electrode sets A system (10) is disclosed that includes a monitor (16) for use in performing 12-lead electrocardiographic (ECG) and body surface mapping (BSM) analyses on a patient (12) with a single ten-electrode cable set (14). The monitor receives nine leads of data ... | 06/07/1994 |
