Patent application number | Description | Published |
20090299273 | REMOTE EXCHANGE PERITONEAL DIALYSIS - A portable, flexible peritoneal dialysis system is disclosed. The system includes a flexible harness, such as canvas or cloth, to mount a stiff housing with a heater for holding and heating fresh dialysis fluid. The harness includes straps or other suspending devices for holding a second, flexible housing for a drain bag for holding sent dialysis fluid. The upper portion of the system includes a hook and a load cell for suspending the remaining portions. The load cell is used to measure the weight of the apparatus. By keeping track of the weight and the changes, the quantity of fluid removed from the patient, spent dialysate, is tracked, as is fresh dialysate infused into the patient. An electronics or control portion controls heating of the fresh dialysate, and operation of pumps and valves for moving the dialysate. This portion also includes alarms and communications equipment. | 12-03-2009 |
20100130918 | SYSTEMS AND METHODS FOR REMOVING AIR FROM SUPPLY CONTAINERS AND ASSOCIATED FILL TUBING - In one embodiment, a patient connection system for peritoneal dialysis includes: a housing; a fill container occluder valve carried by the housing; a drain container occluder valve carried by the housing; a shunt connector positioned at the housing, so as to be removeably connected into a fill container line and a drain container line to allow fresh dialysis fluid to run from the fill container to prime the fill container line when the fill and drain container occluder valves are open; and a patient transfer set support provided by the housing, the patient transfer set support configured to allow a patient transfer set to be connected to the fill container line after the fill and drain container occluder valves have been closed and the shunt connector has been disconnected from the fill and drain container lines. | 05-27-2010 |
20100130919 | SYSTEMS AND METHODS FOR REMOVING AIR FROM THE PATIENT'S PERITONEAL CAVITY - A peritoneal dialysis (“PD”) connection apparatus includes a first connector for connecting to a PD fluid fill line; a second connector in fluid communication with the first connector, the second connector including a filter configured to allow air but not fluid to pass through the filter; and an air-tight cap manually removeable and resealable to the second connector so as to selectively expose the filter to allow air trapped in a patient's peritoneum to be vented to atmosphere. | 05-27-2010 |
20110093294 | PERITONEAL DIALYSIS OPTIMIZED USING A PATIENT HAND-HELD SCANNING DEVICE - A dialysis system includes: a portable device configured to be carried by a patient and to read a marking displayed on a dialysis fluid container, the device obtaining data concerning at least one of a dialysis fluid type and a dialysis fluid volume from the marking; the device defined dialysate dwell time, alert patients for the next exchange and further configured to transfer the data to a computer; and wherein the computer is configured to use the data to track therapy progress of the product. | 04-21-2011 |
20150224243 | OPTIMIZING PERITONEAL DIALYSIS USING A PATIENT HAND-HELD SCANNING DEVICE - A handheld personal communication apparatus for dialysis includes: a reader to (i) read a marking displayed on a dialysis fluid container to acquire data concerning at least one of a dialysis fluid type or a dialysis fluid volume from the marking, and/or (ii) receive a patient weight signal from a weight scale; a processor using at least one of the dialysis fluid type, dialysis fluid volume, or patient weight to determine a dialysis dwell time for at least one cycle of a dialysis therapy, the dialysis dwell time being a time to achieve, over the at least one cycle, at least one of (a) a specified ultrafiltrate level, (b) a urea removal level, or (c) a creatinine removal level; and an output interface providing an indication to the patient of a completion of the dialysis dwell time. | 08-13-2015 |
Patent application number | Description | Published |
20090185510 | RF PROCESSOR HAVING INTERNAL CALIBRATION MODE - The present invention pertains to a method of calibrating reception properties of a radio frequency (RF) processor. The application describes two embodiments of the invention representing calibration of the properties using an auxiliary transmitter to generate a calibration signal internal to the RF processor. | 07-23-2009 |
20090186582 | SYSTEM AND METHOD FOR TRANSMISSION INTERFERENCE CANCELLATION IN FULL DUPLEX TRANSCEIVER - A full duplex transceiver has cancellation circuitry that includes an auxiliary receiver and an auxiliary transmitter. More specifically, an analog received signal that includes transmission signal leakage is provided to a low noise amplifier (LNA), which then provides its output to a main receiver and the auxiliary receiver. The auxiliary receiver includes a portion operable to convert the received signal from the analog domain to the digital domain. The auxiliary receiver additionally includes a cancellation processor that determines the transmission signal leakage and generates a signal based on the determined leakage. This signal generated by the auxiliary receiver is provided to the auxiliary transmitter, which converts the digital signal back to the analog domain and generates a cancellation signal. The analog cancellation signal is fed back and added to the received signal at the input of the LNA. As a result of the feedback system including an auxiliary receiver and an auxiliary transmitter, transmission signal leakage of many types may be canceled from a received signal. | 07-23-2009 |
20100165895 | METHODS AND APPARATUS FOR CANCELING DISTORTION IN FULL-DUPLEX TRANSCEIVERS - Methods and apparatus for canceling distortion in full-duplex transceivers are disclosed. Some example methods to reduce distortion in a full-duplex transceiver include generating a first digital signal, generating a first analog signal based on the first digital signal for transmission over a full-duplex channel, receiving a second analog signal via the full-duplex channel, and generating a second digital signal based on the second analog signal, wherein the second digital signal includes coupling distortion based on the first analog signal. The example methods further include generating an adaptive filter signal based on the first digital signal, and reducing the coupling distortion from the second digital signal by subtracting the adaptive filter signal from the second digital signal. | 07-01-2010 |
20100330942 | LINEARITY OF AN RF RECEIVE PATH BY SPURIOUS TONE SUPPRESSION - A method of increasing linearity of an RF signal receive path includes measuring a signal amplified by the receive path. The receive path has a local oscillator operating at an LO frequency and a ground. An error signal is determined from the amplified signal, the error signal being representative of the nonlinearity. An anti-spur tone is injected into the ground. The anti-spur tone has a frequency about equal to the LO frequency and an amplitude and phase that are determined to increase the linearity of the receive path. | 12-30-2010 |
20130170581 | QUADRATURE DIGITAL-IF TRANSMITTER WITHOUT INTER-STAGE SAW FILTER AND DEVICES USING SAME - An RF transmitter comprises a digital-to-IF circuit block configured to receive a digital in-phase baseband signal and a digital quadrature baseband signal and to up-convert the digital in-phase and quadrature baseband signals to a digital in-phase IF signal and to a digital quadrature IF signal. The wireless RF transmitter further comprises an IF-to-RF circuit block configured to convert the digital in-phase and quadrature IF signals to analog signals and to up-convert the analog in-phase and quadrature IF signals to an RF output signal. The digital-to-IF circuit block comprises pre-compensation circuitry configured to reduce analog impairments associated with the IF-to-RF circuit block. | 07-04-2013 |
20140241462 | CIRCUIT AND METHOD FOR ENVELOPE TRACKING AND ENVELOPE-TRACKING TRANSMITTER FOR RADIO-FREQUENCY TRANSMISSION - A method of envelope tracking and an envelope tracking (ET) circuit. One embodiment of the (ET) circuit is for radio frequency (RF) transmission and includes: (1) an amplitude calculator configured to generate an amplitude signal that approximates the amplitude of an input signal, (2) a peak detector configured to take samples of the amplitude signal within a time window and produce an envelope signal that represents an amplitude peak among the samples, and (3) a signal conditioner configured to condition the envelope signal for driving a power supply input stage of a power amplifier operable to amplify and transmit an RF signal based on the input signal. | 08-28-2014 |