Patent application number | Description | Published |
20080198568 | Dual-sided substrate integrated circuit package including a leadframe having leads with increased thickness - An integrated circuit package includes a first non-conductive substrate having a first inner surface and a second non-conductive substrate having a second inner surface. A die having a first thickness is disposed between the first and second inner surfaces. A leadframe includes a member having a proximal end and a distal end. The proximal end has a second thickness less than the first thickness. The distal end is disposed between the first and second inner surfaces. The distal end is undulated such that the distal end has an effective thickness greater than the second thickness. | 08-21-2008 |
20090001546 | Ultra-thick thick film on ceramic substrate - An electrically isolated and thermally conductive double-sided pre-packaged integrated circuit component exhibiting excellent heat dissipative properties, durability and strength, and which can be manufactured at a low cost includes electrically insulated and thermally conductive substrate members having outer surfaces, ultra-thick thick film materials secured to the outer surfaces of the substrate members and a lead member and a transistor member positioned between the substrate members. | 01-01-2009 |
20090057853 | Semiconductor power module with flexible circuit leadframe - A semiconductor power module includes a semiconductor chip thermally interfaced to a ceramic substrate and a leadframe defined by a flexible circuit disposed intermediate the chip and the ceramic substrate. The flexible circuit includes a conductor layer that is selectively encased in an insulated jacket to ensure adequate electrical insulation between the conductor layer and adjacent conductive surfaces. Preferably, the module is constructed for double side cooling by sandwiching the chip between a pair of ceramic substrates and providing intermediate flexible circuit leadframes on both sides of the chip for electrically accessing the chip terminals. | 03-05-2009 |
20090057882 | Fluid cooled semiconductor power module having double-sided cooling - A semiconductor power module includes one or more power semiconductor power devices sandwiched between a fluid conducting base and a fluid conducting cover joined to the base. Fluid coolant entering the base diverges into a first flow path through the base and a second parallel flow path through the cover, and then converges and discharges through an outlet. The semiconductor devices have upper and lower active areas that are thermally coupled to inboard faces of the cover and base for low double-sided thermal resistance, and the devices are electrically accessed through a set of terminals formed on the base. Multiple sets of semiconductor power devices are double-side cooled by joining multiple fluid conducting covers to the base such that the coolant successively diverges and then re-converges at the locations where each cover is joined to the base. Preferably, the flow paths in both the base and cover include integral features for enhancing the surface area in contact with the coolant. | 03-05-2009 |
20100133672 | DUAL-SIDED SUBSTATE INTEGRATED CIRCUIT PACKAGE INCLUDING A LEADFRAME HAVING LEADS WITH INCREASED THICKNESS - An integrated circuit package includes a first non-conductive substrate having a first inner surface and a second non-conductive substrate having a second inner surface. A die having a first thickness is disposed between the first and second inner surfaces. A leadframe includes a member having a proximal end and a distal end. The proximal end has a second thickness less than the first thickness. The distal end is disposed between the first and second inner surfaces. The distal end is undulated such that the distal end has an effective thickness greater than the second thickness. | 06-03-2010 |
20130258592 | LIQUID COOLED ELECTRONICS ASSEMBLY SUITABLE TO USE ELECTRICALLY CONDUCTIVE COOLANT - A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metallic seal around the perimeter of the dielectric plates to form a device assembly, and then forms another metallic seal between the device assembly and a housing. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized. | 10-03-2013 |
Patent application number | Description | Published |
20090062808 | Apparatus and method for the dispensing of bone cement - Apparatus and method to dispense PMMA bone cement including a temperature controller, a disposable cement cartridge and a means for extracting cement from the cement cartridge so that the temperature of the extracted cement is first cooled to discourage polymerization and to prolong working time, then warmed so as to control viscosity of the cement flowing into the desired bone repair location. A first embodiment includes a spiral cement cartridge along with a means for extracting cement therefrom. A second embodiment includes a linear disposable cement cartridge along with a means for extracting cement therefrom. A color matching mechanism identifies cement temperature and viscosity during dispensation. A manual cement dispensing method includes a calibrated hand crank mechanism for causing calibrated delivery of cement. An automatic cement dispensing method uses a stepper motor and computer programmed means for causing calibrated flow of cement. | 03-05-2009 |
20090204054 | TRANSCUTANEOUS TELEMETRY OF CEREBROSPINAL FLUID SHUNT PROGRAMMABLE-VALVE PRESSURE USING NEAR-INFRARED (NIR) LIGHT - An improvement for a programmable valve system of the type implanted in a patient and used to divert cerebrospinal fluid (CSF) from an intraventricular space to a terminus such as the peritoneal cavity. Such system includes means for establishing a flow path for the CSF to the terminus, which flow path includes a normally closed valve and means for adjusting the opening pressure of the valve in order to regulate the quantity of CSF diverted. The improvement enables an operator to be apprised of the actual opening pressure setting of the valve. A sensor is implantable at the patient and responds to the actual opening pressure setting, by generating an NIR telemetry signal indicative of the actual setting. This signal is transcutaneously transmitted through the skin of the patient to an external point. The telemetry signal is processed to produce observer intelligible data indicating the opening pressure setting of the valve. | 08-13-2009 |
20120029414 | Transcutaneous telemetry of cerebrospinal fluid shunt programmable-valve pressure using near-infrared (NIR) light - An improvement for a programmable valve system of the type implanted in a patient and used to divert cerebrospinal fluid (CSF) from an intraventricular space to a terminus such as the peritoneal cavity. Such system includes means for establishing a flow path for the CSF to the terminus, which flow path includes a normally closed valve and means for adjusting the opening pressure of the valve in order to regulate the quantity of CSF diverted. The improvement enables an operator to be apprised of the actual opening pressure setting of the valve. A sensor is implantable at the patient and responds to the actual opening pressure setting, by generating an NIR telemetry signal indicative of the actual setting. This signal is transcutaneously transmitted through the skin of the patient to an external point. The telemetry signal is processed to produce observer intelligible data indicating the opening pressure setting of the valve. | 02-02-2012 |
20120044546 | PDA compatible text scanner - An optical text scanning device compatible with a small handheld computer such as a personal digital assistant (PDA). The scanning device allows for a clear view of the text that is scanned simultaneous to the scanning process so that the operator can continuously align the device to the text. The scanned images of the text are converted in real-time to standard byte or word characters for subsequent display on the computer's viewing screen. The operator can quickly verify the accuracy of the conversion by comparing the displayed character with the actual character of text on the surface that is being scanned. Scanned text characters are stored in standard digital text files for ease of manipulation. | 02-23-2012 |
20120095525 | Apparatus and method using near infrared reflectometry to reduce the effect of positional changes during spinal cord stimulation - A spinal cord stimulation apparatus and method for automatic adjustments of SCS using near-infrared (NIR) reflectometry are provided. A positionally sensitive system for spinal cord stimulation including an electrode assembly with integrated optical components for sensing spinal cord position relative to a stimulating electrode array and an SCS controller for controlling electrode stimulation parameters is provided. The integrated optical components include an IR emitter and a pair of IR photodetectors. As light from the IR emitter reflects from the spinal cord, it is detected by each of the pair of IR photodetectors. As the spinal cord changes position so do the angles of incidence for detected light from the IR emitter, a ratio of optical intensities in combination with a total optical intensity is measured and used to interpolate a set of electrode stimulation settings from a calibration table. Electrode pulse characteristics are adjusted in real time to minimize changes in stimulation perceived by the patient during motion. | 04-19-2012 |
20120303090 | Apparatus and Method Using Near Infrared Reflectometry to Reduce the Effect of Positional Changes During Spinal Cord Stimulation - A spinal cord stimulation apparatus and method for automatic adjustments of SCS using near-infrared (NIR) reflectometry are provided. A positionally sensitive system for spinal cord stimulation including an electrode assembly with integrated optical components for sensing spinal cord position relative to a stimulating electrode array is provided. The integrated optical components include an IR emitter and a pair of IR photodetectors. As light from the IR emitter reflects from the spinal cord, it is detected by each of the pair of IR photodetectors. As the spinal cord changes position so do the angles of incidence for detected light from the IR emitter, a ratio of optical intensities in combination with a total optical intensity is measured and used to interpolate a set of electrode stimulation settings from a calibration table. Electrode pulse characteristics are adjusted in real time to minimize changes in stimulation perceived by the patient during motion. | 11-29-2012 |
20130035142 | Cellular Telephone Shield for the Reduction of Electromagnetic Radiation Exposure - A radiation shield comprises a substrate polymer layer, a conductive layer having an aperture providing access to a front face of a cellular telephone, adjacent the substrate polymer layer, and an adhesion surface adjacent the conductive layer and the front face. A radiation shield comprising a first substrate polymer layer, a conductive layer having an aperture providing access to a touch-sensitive screen of the front face, adjacent the first substrate polymer layer, a second substrate polymer layer adjacent the conductive layer, and an adhesion surface adjacent the conductive layer and the front face. At least one opening provides access to the front face. | 02-07-2013 |
20130035577 | System for Transcutaneous Monitoring of Intracranial Pressure - A system for measuring and converting to an observer intelligible form an internal physiological parameter of a patient. The invention allows transcutaneous telemetry of intracranial pressure via a system which includes a patient implanted sensor module and an external processing module, optically coupled to the sensor module via an external coupling module. A sensor within the sensor module transduces the measured pressure and a near infrared emitter transmits the telemetry when interrogated by the external coupling module. A set of tuned inductor-crystal circuits comprised in part of a cylindrical crystal oscillator whose resonant frequency is sensed by a dipper circuit arrangement is provided. Power for the sensor module is derived inductively through rectification of a transcutaneously-applied high-frequency alternating electromagnetic field generated within the external coupling module. A computer within the processing module calculates the physiological parameter from the telemetry signal and represents this data in numerical, graphical, or analog format. | 02-07-2013 |
20130310830 | PROBE FOR DIRECTIONAL SURGICAL COAGULATION WITH INTEGRATED NERVE DETECTION AND METHOD OF USE - A cautery apparatus and method are provided that coagulate tissue along a seam and near the ends of the seam. The cautery apparatus and method include a cautery device and an EMG system. When a set of electrodes for the EMG are placed in the lower extremities of a patient, the cautery method injects a current at the cautery device and monitors the EMG electrodes. When nerve stimulation is detected at the EMG electrodes, during tissue coagulation, the position of the cautery device is changed. Generally, the cautery device is repositioned to eliminate nerve stimulation, thereby avoiding nerve damage. | 11-21-2013 |
20140005755 | APPARATUS AND METHOD USING NEAR INFRARED REFLECTOMETRY TO REDUCE THE EFFECT OF POSITIONAL CHANGES DURING SPINAL CORD STIMULATION | 01-02-2014 |
20140074182 | APPARATUS AND METHOD USING NEAR INFRARED REFLECTOMETRY TO REDUCE THE EFFECT OF POSITIONAL CHANGES DURING SPINAL CORD STIMULATION - A positionally sensitive spinal cord stimulation apparatus and method using near-infrared (NIR) reflectometry are provided for automatic adjustments of spinal cord stimulation. The system comprises an electrode assembly with an integrated optical fiber sensor for sensing spinal cord position. The integrated optical fiber sensor, comprising a set of optical elements for emitting light from a set of IR emitters and for collecting reflected light into a set of IR photodetectors, determines a set of measured optical intensities. As the spinal cord changes position, the angles of incidence for light from the IR emitter and the measured optical intensities change. A ratio of measured optical intensities in combination with a total measured optical intensity is used to interpolate a set of electrode stimulation settings from a calibration table. Electrode pulse characteristics are adjusted in real time to minimize changes in stimulation perceived by the patient during motion. | 03-13-2014 |
20140135597 | System for Transcutaneous Monitoring of Intracranial Pressure - A system for measuring and converting to an observer intelligible form an internal physiological parameter of a patient. The invention allows transcutaneous telemetry of intracranial pressure via a system which includes a patient implanted sensor module and an external processing module, optically coupled to the sensor module via an external coupling module. A sensor within the sensor module transduces the measured pressure and a near infrared emitter transmits the telemetry when interrogated by the external coupling module. A set of tuned inductor-crystal circuits comprised in part of a cylindrical crystal oscillator whose resonant frequency is sensed by a dipper circuit arrangement is provided. Power for the sensor module is derived inductively through rectification of a transcutaneously-applied high-frequency alternating electromagnetic field generated within the external coupling module. A computer within the processing module calculates the physiological parameter from the telemetry signal and represents this data in numerical, graphical, or analog format. | 05-15-2014 |
20140135647 | System for Transcutaneous Monitoring of Intracranial Pressure - A system for measuring and converting to an observer intelligible form an internal physiological parameter of a patient. The invention allows transcutaneous telemetry of intracranial pressure via a system which includes a patient implanted sensor module and an external processing module, optically coupled to the sensor module via an external coupling module. A sensor within the sensor module transduces the measured pressure and a near infrared emitter transmits the telemetry when interrogated by the external coupling module. A set of tuned inductor-crystal circuits comprised in part of a cylindrical crystal oscillator whose resonant frequency is sensed by a dipper circuit arrangement is provided. Power for the sensor module is derived inductively through rectification of a transcutaneously-applied high-frequency alternating electromagnetic field generated within the external coupling module. A computer within the processing module calculates the physiological parameter from the telemetry signal and represents this data in numerical, graphical, or analog format. | 05-15-2014 |
20140257166 | Transcutaneous telemetry of cerebrospinal fluid shunt programmable-valve pressure using near-infrared (NIR) light - An improvement for a programmable valve system of the type implanted in a patient and used to divert cerebrospinal fluid (CSF) from an intraventricular space to a terminus such as the peritoneal cavity. Such system includes means for establishing a flow path for the CSF to the terminus, which flow path includes a normally closed valve and means for adjusting the opening pressure of the valve in order to regulate the quantity of CSF diverted. The improvement enables an operator to be apprised of the actual opening pressure setting of the valve. A sensor is implantable at the patient and responds to the actual opening pressure setting, by generating an NIR telemetry signal indicative of the actual setting. This signal is transcutaneously transmitted through the skin of the patient to an external point. The telemetry signal is processed to produce observer intelligible data indicating the opening pressure setting of the valve. | 09-11-2014 |
20140330341 | APPARATUS AND METHOD USING NEAR INFRARED REFLECTOMETRY TO REDUCE THE EFFECT OF POSITIONAL CHANGES DURING SPINAL CORD STIMULATION - A positionally sensitive spinal cord stimulation apparatus and method using near-infrared (NIR) reflectometry are provided for automatic adjustments of spinal cord stimulation. The system comprises an electrode assembly with an integrated optical fiber sensor for sensing spinal cord position. The integrated optical fiber sensor, comprising a pair of optical elements for emitting light from an IR emitter and for collecting reflected light into a photodetector, determines a set of measured photocurrents. As the spinal cord changes position, the angles of incidence for light from the IR emitter and the measured optical intensities change. Electrode pulse characteristics are adjusted in real time, based on the set of measured optical intensities, to minimize changes in stimulation perceived by the patient during motion. The system includes automatic calibration of the optical fiber sensor when the patient is at rest, and a patient orientation detection. | 11-06-2014 |