Patent application number | Description | Published |
20080295327 | FLEXIBLE CIRCUIT - The present application is directed to a method of producing a multilayer circuit. The method comprises providing a first electrically insulating layer comprising apertures through the layer and bonding the first electrically insulating layer with a first conductive layer. The first conductive layer is bonded to the first electrically insulating layer in register to the apertures in the electrically insulating layer and the multilayer circuit is produced at a sustained rate. | 12-04-2008 |
20090014113 | COMPOSITE WEBS AND METHODS OF MANUFACTURING SAME - Composite webs having a structured web attached to a carrier web and methods of manufacturing the composite webs are disclosed. The structured web may include a plurality of structures that protrude from the structured web. The methods may involve delivering a molten polymeric composition onto the outer surface of a forming tool that includes a plurality of depressions formed in the outer surface. The molten polymer enters depressions in the outer surface of the forming tool and is solidified therein such that a plurality of structures are formed in the shape of the depressions. A skin layer of the polymeric composition may extend between the depressions, such that the structured web formed on the forming tool includes a skin layer connecting the structures. The structured web is removed from the forming tool after solidification of the polymeric composition by adhering the structured web to a carrier web using adhesive located between the carrier web and structured web. | 01-15-2009 |
20090142577 | COMPOSITE WEBS AND METHODS OF MANUFACTURING THE SAME - Composite webs having a structured web attached to a carrier web and methods of manufacturing the composite webs are disclosed. The structured web may include a plurality of structures that protrude from the structured web. The methods may involve delivering a molten polymeric composition onto the outer surface of a forming tool that includes a plurality of depressions formed in the outer surface. The molten polymer enters depressions in the outer surface of the forming tool and is solidified therein such that a plurality of structures are formed in the shape of the depressions. A skin layer of the polymeric composition may extend between the depressions, such that the structured web formed on the forming tool includes a skin layer connecting the structures. The structured web is removed from the forming tool after solidification of the polymeric composition by adhering the structured web to a carrier web using adhesive located between the carrier web and structured web. | 06-04-2009 |
20100112274 | COMPOSITE WEBS AND CLOSURE SYSTEMS - Composite webs having one or more polymeric structures located on a substrate, closure systems comprising composite webs, and methods of attaching articles are disclosed. The polymeric structures are formed using thermoplastic compositions and are attached to a surface of a substrate. The polymeric structures include an area that is attached to the substrate and a detached area that is not attached to a surface of a substrate. | 05-06-2010 |
20100217224 | CLOSURE TAPE TAB FOR ABSORBENT ARTICLE, PRELAMINATED CLOSURE TAPE, AND METHOD OF MANUFACTURING A CLOSURE TAPE - The present invention relates to a closure tape tab for an absorbent article, particularly for a disposable diaper, for fastening the article on the body of a person. The closure tape tab comprises a proximal end portion and a distal end portion being connected by an inner tab portion, wherein the inner tab portion has a first major surface and a second major surface. The proximal and distal end portions are connected to the inner tab portion and the first major surface thereof such that opposing ends of the proximal and distal end portions are spaced apart from each other. The distal end portion is folded over toward the proximal end portion such that at least a part of the first major surface of the inner tab portion in the space is covered. The proximal end portion is preferably not folded. The present invention furthermore relates to a prelaminated closure tape, preferably in a stable roll, from which such closure tape tabs can be cut. The closure tape of the present invention is adapted to be level-wound on a roll so that an increased amount of tape can be stored on the roll. | 08-26-2010 |
20100312219 | COMPOSITE WEBS WITH ELASTIC COMPOSITE STRUCTURES - Composite webs having one or more elastic composite structures located on a substrate, methods of manufacturing the composite webs, and articles including the elastic composite structures and substrates are disclosed. The elastic composite structures may preferably include one or more elastic components attached to anchors at two or more locations, wherein the anchors are themselves attached to the substrate. The anchors may preferably be constructed of inelastic polymeric material (and/or exhibit limited to no elasticity in use) and the elastic components may preferably be constructed of elastomeric polymeric material. | 12-09-2010 |
20110247184 | COMPOSITE WEBS AND CLOSURE SYSTEMS - Composite webs having one or more polymeric structures located on a substrate, closure systems comprising composite webs, and methods of attaching articles are disclosed. The polymeric structures are formed using thermoplastic compositions and are attached to a surface of a substrate. The polymeric structures include an area that is attached to the substrate and a detached area that is not attached to a surface of a substrate. | 10-13-2011 |
Patent application number | Description | Published |
20110088940 | Modular Electromagnetically Shielded Enclosure - An electromagnetically shielded enclosure is disclosed. One such system includes a continuously welded shell having a top, a bottom, and a plurality of side walls cooperating to enclose an interior volume, the interior volume sized to receive electronic equipment and allow human entry. The enclosure is constructed from electromagnetically conductive materials and includes continuous welds along seams joining each material. The enclosure includes a sally port located within the enclosure. The sally port includes a first door in one of the plurality of side walls and constructed from electromagnetically conductive materials. The sally port also includes a second door constructed from electromagnetically conductive materials. The sally port defines a secondary interior volume within the enclosure sized to allow human entry through either the first or second door. | 04-21-2011 |
20110089929 | Electromagnetic Field Detection Systems and Methods - A method and apparatus configured to detect electromagnetic field events are disclosed. One apparatus includes an antenna and a circuit electrically connected to the antenna. The circuit includes electronics communicatively connected to the antenna via a direct current isolation circuit and an equalizer compensating for the differentiating frequency response of the antenna. The circuit also includes a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna. The circuit further includes a peak detector receiving signals from the equalizer and configured to capture a peak value of the signals. The electromagnetic field event is detected at least in part based on the peak signal value. | 04-21-2011 |
20110092181 | Electromagnetic Field Detection Systems and Methods - Detectors and other apparatus for determining the presence of electromagnetic events are disclosed. One such system includes an electromagnetically shielded enclosure and a detector configured to detect an electromagnetic field event occurring in the proximity of the enclosure. The detector includes an antenna and a circuit electrically connected to the antenna. The circuit includes electronics communicatively connected to the antenna via a direct current isolation circuit, and an equalizer compensating for the differentiating frequency response of the antenna. The circuit also includes a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna, and a peak detector receiving signals from the logarithmic amplifier and configured to capture a peak value of the signals. An electromagnetic field event is detected at least in part based on the peak signal value. | 04-21-2011 |
20110267765 | Electromagnetically-Shielded Portable Storage Device - Electromagnetically shielded portable storage devices are disclosed. One such device includes an electromagnetically shielded enclosure having an interior volume, the electromagnetically shielded enclosure including a plurality of shielded walls and sized to be manually carried by a person. The interior volume of the enclosure is isolated from high-frequency electromagnetic energy generated external to the enclosure. The device includes at least one storage device positioned within the interior volume, and at least one communicative connection extending from the at least one storage device to a communicative socket accessible external to the electromagnetically shielded enclosure. The at least one communicative connection is configured to allow access to the storage device by a computing system external to the electromagnetically shielded enclosure. The device also includes an electrical filter positioned at least partially within the electromagnetically shielded enclosure, and including a low-pass filter selected to prevent spurious or intentional conductive high-frequency electromagnetic energy from entering the interior volume via the communicative connection. | 11-03-2011 |
20120019962 | Sensing and Control Electronics for a Power Grid Protection System - Systems and method for detecting potentially harmful harmonic and direct current signals at a transformer are disclosed. One such system includes a plurality of detection components electrically connected to electrical signal lines leading from one or more connection points on a power grid, and a plurality of threshold detectors, each threshold detector configured to compare an incoming signal from a detection component to a predetermined signal having a threshold. The system also includes a controller receiving an output from each of the plurality of threshold detectors and configured to drive at least one external component in response to receiving an indication from at least one of the plurality of threshold detectors of a detected signal above a threshold. | 01-26-2012 |
20120019965 | Continuous Uninterruptable AC Grounding System for Power System Protection - A continuous grounding system for use in an alternating current system including a transformer is disclosed. The system includes a switch assembly connected between a transformer neutral of a transformer and a ground, the switch assembly having an open position and a closed position, the open position disrupting the path through the switch assembly between the electrical connection and the transformer neutral, and the closed position establishing a path connecting the electrical connection to the transformer neutral through the switch assembly, wherein in normal operation of the alternating current electrical device the switch assembly remains in a closed position. The system also includes a DC blocking component positioned in parallel with the switch assembly and connected between the transformer neutral and the ground. The system further includes a control circuit configured to control the switch assembly, the control circuit including a sensor configured to actuate the switch assembly to an open position upon detection of a predetermined harmonic signal threshold at one of the transformer phases or a predetermined threshold of DC current between the transformer neutral and ground. | 01-26-2012 |
20120140431 | Electromagnetically-Protected Electronic Equipment - Equipment and systems for protecting electronics against damage or upsets from electromagnetic pulse (HEMP or EMP), intentional electromagnetic interference (IEMI), and high power RF weapons are disclosed. This equipment can include a shielding arrangement includes a metallic enclosure having an interior volume defining a protected portion and an unprotected portion separated by an electromagnetically shielding barrier, and having a portal providing access to the protective portion and including an access opening, a shielding cover sized to cover the access opening, and an electromagnetically sealing gasket positioned around a perimeter of the access opening. The shielding arrangement also includes one or more filters positioned at least partially within the unprotected portion and along the electromagnetically shielding barrier to dampen electromagnetic signals and/or power signals outside a predetermined acceptable range. In some cases, waveguides beyond cutoff are included, to provide passage of optical signals or airflow through the enclosure. | 06-07-2012 |
20120243846 | Integrated Security Video and Electromagnetic Pulse Detector - The present invention relates systems and methods of electromagnetic protection for integrated video and electromagnetic detector security system equipment. A security system configured to be protected from electromagnetic events or attacks includes a quantity of video cameras and a quantity of electromagnetic event detectors disposed at a facility. The system also includes an electromagnetically-shielded cabinet containing computing equipment and a storage media. The electromagnetically-shielded cabinet is configured to receive data from each of the quantity of video cameras and electromagnetic detectors and store the data on the storage media, whereby, in the event of an electromagnetic event, information at the time of the event can be preserved on the storage media. Additionally, the electromagnetic detectors can trigger the video cameras to scan the surrounding area once an electromagnetic event has been detected such that images of suspicious vehicles, persons, packages or other items can be recorded for future forensic investigations. | 09-27-2012 |
20120326729 | Lower Power Localized Distributed Radio Frequency Transmitter - Methods and systems are disclosed for wireless communication, and in particular using a coaxial antenna for distributed wireless transmission. In one example, a wireless transmitter is disclosed that includes a radio frequency signal source and a coaxial cable including a near end and a far end. The near end is electrically connected to the radio frequency signal source and configured to receive signals from the radio frequency signal source. The coaxial cable has an inner conductor and an outer conductor. The wireless transmitter includes a shorting connection at the far end of the coaxial cable, the shorting connection electrically connecting the inner conductor and the outer conductor, and a plurality of openings along the coaxial cable spaced at predetermined locations to output signals generated by the radio frequency signal source. The invention can be used for RF attenuation monitoring and/or testing applications. | 12-27-2012 |
20130308229 | Self-Testing Features of Sensing and Control Electronics for a Power Grid Protection System - Systems and method for detecting potentially harmful harmonic and direct current signals at a transformer are disclosed. One system includes a protection circuit electrically connected to a transformer neutral, the transformer electrically connected to a power grid, the protection circuit including a DC blocking component positioned between the transformer neutral and ground and one or more switches selectively actuated to form a path between the transformer neutral and ground in the event of unwanted DC current at the transformer neutral. The system also includes a control circuit electrically connected to the protection circuit and positioned to selectively actuate the switches based on observed conditions within the protection circuit. The system further includes a plurality of test connections disposed within the protection circuit and useable to test electrical properties of the protection circuit. | 11-21-2013 |
20140334054 | OVERVOLTAGE PROTECTION FOR POWER SYSTEMS - Electrical protection devices, such as for use with power systems for overvoltage protection, are disclosed. One electrical protection device includes a first electrical connection, a second electrical connection, a first electrical discharge device, and a second electrical discharge device. The first electrical discharge device includes a first conductive bus connected to the first electrical connection and a second conductive bus connected to the second electrical connection. The first electrical discharge device has a first breakdown voltage. The second electrical discharge device includes a third conductive bus connected to the first electrical connection and a fourth conductive bus connected to the second electrical connection. The second electrical discharge device has a second breakdown voltage. | 11-13-2014 |
20150311697 | TRANSFORMER PROTECTION CIRCUIT AND METHOD - Systems and methods for protecting an electrical component in an alternating current system that includes a transformer are disclosed. In one aspect, a circuit includes a switch assembly connected between a transformer neutral of a transformer and a ground and having an open position and a closed position. In normal operation, the switch remains in a closed position. The circuit further includes a DC blocking component positioned in parallel with the switch assembly and connected between the transformer neutral and the ground, a voltage probe connected between the transformer neutral and ground and configured to monitor an instantaneous voltage level at the transformer neutral, and a control circuit configured to control the switch assembly, the control circuit including a sensor configured to actuate the switch assembly to an open position at least upon detection of a harmonic signal in at least one phase of the transformer or a predetermined threshold of DC or quasi DC current between the transformer neutral and the ground. | 10-29-2015 |
Patent application number | Description | Published |
20080217799 | OPTICAL BODIES INCLUDING STRIPPABLE BOUNDARY LAYERS - The present disclosure is directed to optical bodies including a first optical film, a second optical film and one or more strippable boundary layers disposed between the first and second optical films. Each major surface of a strippable boundary layer may be disposed adjacent to an optical film or another strippable boundary layer. At least one of the first and second optical films may include a reflective polarizer. The present disclosure is also directed to methods of processing such optical bodies. | 09-11-2008 |
20100254002 | PROCESSES AND APPARATUS FOR MAKING TRANSVERSELY DRAWN FILMS WITH SUBSTANTIALLY UNIAXIAL CHARACTER - A stretcher for substantially uniaxially orienting a film includes a plurality of gripping members to hold opposing edge portions of the film, paths along which the gripping members travel to stretch the film in a stretching region, and a drive mechanism to convey the film and gripping members along a machine direction. At least a portion of the paths in the stretching region define diverging, curvilinear courses disposed in-plane. The paths are configured such that during the stretching an extent of uniaxial character, U, is between zero and unity and a minimum value of an extent of uniaxial character, U, is at least 0.70 over a final portion of the stretching after achieving a TDDR of 2.5. U is defined as U=(1/MDDR−1)/(TDDR | 10-07-2010 |
20140027934 | OPTICAL BODIES INCLUDING ROUGH STRIPPABLE BOUNDARY LAYERS AND ASYMMETRIC SURFACE STRUCTURES - Optical bodies are disclosed that include an optical film and at least one rough strippable skin layer. The at least one rough strippable skin layer can include a continuous phase and a disperse phase. In some embodiments, the at least one rough strippable skin layer can include a first polymer, a second polymer different from the first polymer and an additional material that is substantially immiscible in at least one of the first and second polymers. In some exemplary embodiments, a surface of the at least one rough strippable skin layer adjacent to the optical film comprises a plurality of protrusions and the adjacent surface of the optical film comprises a plurality of asymmetric depressions substantially corresponding to said plurality of protrusions. Methods of making such exemplary optical bodies are also disclosed. | 01-30-2014 |
Patent application number | Description | Published |
20120230531 | HEADPHONES HOLDER WITH INDICIA OF STORED VALUE - The present invention is a headset holder coupled with indicia of stored value. The indicia of stored value may be printed or painted on, or otherwise permanently coupled to, the holder itself, or may be included in a stored value or gift card that is attached to the holder. The headset holder and the stored value card may be constructed from a single sheet of plastic; in such embodiments, separation of the stored value card from the headset holder may be supported by a scoreline in the plastic material. The headset holder may have a spool and two grips. One grip may be configured to secure earphones and the other grip may be configured to secure a jack of the headset. The spool may be configured for winding headset wire. The holder may be configured to hold primarily an earbud headset. The grips may extend or protrude from a central portion, or body of the holder. The spool may also extend from the body. The holder may display an image, such as the image of a creature or plant. The image may depict the grips as hands of a displayed creature. The image may depict the spool as the head of the creature. | 09-13-2012 |
20140306015 | HEADPHONES HOLDER WITH INDICIA OF STORED VALUE - The present invention is a headset holder coupled with indicia of stored value. The indicia of stored value may be printed or painted on, or otherwise permanently coupled to, the holder itself, or may be included in a stored value or gift card that is attached to the holder. The headset holder and the stored value card may be constructed from a single sheet of plastic; in such embodiments, separation of the stored value card from the headset holder may be supported by a scoreline in the plastic material. The headset holder may have a spool and two grips. One grip may be configured to secure earphones and the other grip may be configured to secure a jack of the headset. The spool may be configured for winding headset wire. The holder may be configured to hold primarily an earbud headset. The grips may extend or protrude from a central portion, or body of the holder. The spool may also extend from the body. The holder may display an image, such as the image of a creature or plant. The image may depict the grips as hands of a displayed creature. The image may depict the spool as the head of the creature. | 10-16-2014 |
Patent application number | Description | Published |
20110270470 | AIRCRAFT SYSTEMS AND METHODS WITH ACTIVE DECELERATION CONTROL - A system is provided for controlling the speed of an aircraft during a deceleration segment between a first state associated with a first speed and a first time and a second state associated with a second speed and a second time. The system includes a navigation system configured to determine the first state; a guidance system configured to determine the second state; and an active deceleration system coupled to the navigation system and the guidance system and configured to construct the deceleration segment between the first state and the second state with at least one intermediate speed between the first speed and the second speed. | 11-03-2011 |
20120035841 | AIRBORNE SEPARATION ASSURANCE SYSTEM AND REQUIRED TIME OF ARRIVAL FUNCTION COOPERATION - Methods and systems are provided for enhancing the functionality of an airborne separation assurance system (ASAS) by modifying it to cooperate with a required time of arrival (RTA) functionality. The system comprises an autopilot configured to execute a trajectory of an aircraft and a flight management system (FMS) in operable communication with the autopilot. The FMS includes a required time of arrival (RTA) system that is configured to determine an RTA aircraft trajectory of the aircraft based on a required time of arrival of the aircraft at a waypoint along the flight plan. The system also includes an airborne separation assurance system (ASAS) in operable communication with the RTA and is configured to determine a spacing trajectory based on a spacing interval from a first reference aircraft. | 02-09-2012 |
20120059535 | SYSTEMS AND METHODS FOR RTA CONTROL OF MULTI-SEGMENT FLIGHT PLANS WITH SMOOTH TRANSITIONS - Methods, systems and device are provided for smoothing a required time of arrival (RTA) speed transition for an aircraft in a multi-segmented speed profile including at least one preceding region with a first predetermined speed pad and at a speed constrained region with a second predetermined speed pad. Exemplary methods include, but are not limited to determining whether a speed constrained region is engaged by a preceding region based at least in part on a speed of an aircraft. If the speed constrained region is engaged, the instructions determine a revised second speed pad for the speed constrained region. If the speed constrained region is not engaged then the instructions assign a default speed pad as the second speed pad for the speed constrained region. The instructions also compile a new speed profile that is defined by one of the revised second speed pad and the default speed pad for the speed constrained region and transmit commands that accelerate the aircraft to a new speed based on the new speed profile. | 03-08-2012 |
20140067245 | AIRCRAFT CONTROL SYSTEM AND METHOD FOR REACHING A WAYPOINT AT A REQUIRED TIME OF ARRIVAL - A method and apparatus includes long term and short term strategies for improving 4D trajectory reliability and required time of arrival reliability. The long term strategy changes speeds along the trajectory to remove the time error in predictions. The short term strategy compensates for wind and position error, for example, by temporarily changing an aircraft guidance speed by applying a guidance margin that would either delay or prevent re-computation of the speed targets along the flight path. The predictions would use the original speed target without the guidance margin application. The guidance speed target will stay applied until the predicted time error crosses a threshold. | 03-06-2014 |
Patent application number | Description | Published |
20100161895 | Securing data on data cartridges - Techniques are described for securing data on data cartridges, such as a Linear Tape-Open (LTO) data cartridge. The techniques include modifying a portion of a cartridge memory (CM) chip of the cartridge in a way that a cartridge drive will be unable to access the data cartridge and to prevent modification of the CM chip by the cartridge drive. In one embodiment, a system includes a data cartridge including a CM chip, a chip reader to read data from and write data to the CM chip, and a computing device to control the chip reader. The computing device causes the chip reader to read data from the cartridge memory chip of the data cartridge and to modify a portion of memory of the chip to prevent unauthorized reads and writes to the data cartridge, without rendering the modification irreversible. | 06-24-2010 |
20100193589 | Cartridge reader that accepts data cartridges both in and out of data cartridge cases - A cartridge reader device includes an RFID unit that reads cartridge memory (CM) data from an RFID tag of a data cartridge, a bar code unit that reads a bar code of the data cartridge, and a housing that encloses the RFID unit and the bar code unit. The housing defines a first receiving area configured to accept the data cartridge when the data cartridge is enclosed in a case, which enables the bar code unit to read the bar code data from the bar code of the data cartridge when the data cartridge is enclosed in the case, and a second receiving area configured to accept the data cartridge when the data cartridge is not enclosed in the case, which enables the bar code unit to read the bar code data from the bar code of the data cartridge when the data cartridge is not enclosed in the case. | 08-05-2010 |
20110186634 | Cartridge Reader with Bar Code Unit and RFID Unit - A cartridge reader device includes an RFID unit that reads cartridge memory (CM) data from an RFID tag of a data cartridge, a bar code unit that reads a bar code of the data cartridge, and a housing that encloses the RFID unit and the bar code unit. The housing encloses the RFID unit and the bar code unit and defines at least one receiving area configured to accept the data cartridge and enables the bar code unit to read the bar code data from the bar code of the data cartridge. The reader device further includes a pair of mirrors positioned within the housing that direct light emitted by the bar code reader to the bar code of the data cartridge along a u-shaped path. | 08-04-2011 |
Patent application number | Description | Published |
20100063569 | CONFORMAL ELECTRODES FOR SHAPED MEDICAL DEVICE LEAD BODY SEGMENTS - A medical lead includes a lead body having at least one conductor extending from a proximal end of the lead body to a distal end of the lead body. The proximal end is adapted to be connected to a pulse generator, and the distal end includes a curved portion. One or more electrodes are operatively connected to the at least one conductor and coupled to the curved portion of the lead body. At least a portion of each of the one or more electrodes includes an arrangement of interconnected, spaced-apart elements that are selectively configured to allow the one or more electrodes to conform to contours of the curved portion during and after implantation of the medical lead. | 03-11-2010 |
20110160820 | VARIABLE STIFFNESS MULTI-LUMEN LEAD BODY FOR AN IMPANTABLE LEAD - A multi-lumen lead body having a smooth transition between regions of varying stiffness on the lead body is described. In one example, the different regions of the lead body can be formed by altering a mix ratio of the different polymers used to form the lead body during the extrusion process. In another example, two or more layers of polymeric materials are co-extruded, and the cross-sectional thicknesses of each of the layers varied in the different regions of the lead body to achieve different stiffnesses. In yet another example, the internal geometry of the lead body is altered during the extrusion process to alter the physical properties of the lead body in a select region of the lead body. In still yet another example, a transition member is provided between regions of varying stiffness to facilitate a smooth transition between the different regions. | 06-30-2011 |
20110160821 | ELECTRODE SURFACE MODIFICATION FOR IMPARTING CURRENT DENSITY DIRECTIONALITY IN LEAD ELECTRODES - An implantable medical lead having a modified electrode surface for imparting current density directionality within an electrode is disclosed. An implantable medical lead includes a lead body having a proximal section and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a blood vessel. An electrode coupled to the distal section of the lead body includes a number of surface features on an inactive portion of the electrode that impart a current density directionality towards an active portion of the electrode that contacts the inner wall of the vessel. Methods for imparting current density directionality within an implantable lead electrode are also disclosed. | 06-30-2011 |
20110160822 | IMPLANTABLE LEAD ELECTRODE WITH ASYMETRICALLY DISTRIBUTED CURRENT DENSITY AND METHODS FOR IMPARTING CURRENT DENSITY DIRECTIONALITY IN LEAD ELECTRODES - Lead electrodes having an asymmetrically distributed current density and methods for imparting current density directionality in lead electrodes are described. An implantable medical lead includes a lead body having a proximal section that connects to another implantable device and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a body vessel. An electrode coupled to the distal section of the lead body includes a conductor mass having an asymmetrically distributed current density that imparts a directionality to one or more active portions of the electrode. | 06-30-2011 |
20110160828 | MRI CONDITIONALLY SAFE LEAD WITH LOW-PROFILE MULTI-LAYER CONDUCTOR FOR LONGITUDINAL EXPANSION - An implantable electrical lead having a flexible body and including a multi-layer coil conductor extending within the longitudinal body lumen from the connector assembly to at least the electrode, the multi-layer coil conductor including a first coil layer a second coil layer disposed about the first coil layer, wherein at least one parameter of the first and the second coil layer is configured such that the lead exhibits a predetermined axial stiffness or bending stiffness. | 06-30-2011 |
20110160830 | IMPLANTABLE LEADS WITH AN AXIAL REINFORCEMENT MEMBER - Implantable electrical leads including an axial reinforcement member are disclosed. In some embodiments, an implantable electrical lead can have a body, one or more electrodes, a cable conductor, a conductor coil, and a reinforcement member. A cable conductor can be disposed within the body and is configured to convey electrical signals between the proximal region and the distal region of the lead. The reinforcement member may be coupled to or integrally formed within the lead body and is configured to limit elongation of the lead body in response to a tensile force. | 06-30-2011 |
20120130396 | PEEL-AWAY IS-4/DF-4 LEAD IMPLANT TOOL WITH ELECTRICAL CONTACTS - A peel-away lead implant tool is described. The peel away lead implant tool is adapted to be disposed over the terminal connector of a lead during an implantation procedure to protect the terminal connector. The peel-away lead implant tool includes a flexible polymer sheath including electrical contacts formed in a contact region of the sheath. The electrical contacts can be either metal foil contacts or conductive polymer contacts and extend from an outer surface to an inner surface of the sheath such that when the testing apparatus is coupled to the lead implant tool, the electrical contacts are pressed into electrical contact with the ring electrodes located on the terminal connector. The lead implant tool also includes various removal means facilitating the easy removal of the implant tool from the terminal connector when the implantation procedure is complete. | 05-24-2012 |
20130158641 | MRI CONDITIONALLY SAFE LEAD WITH LOW-PROFILE MULTI-LAYER CONDUCTOR FOR LONGITUDINAL EXPANSION - An implantable electrical lead includes a lead body and a multi-layer coil conductor extending within the lead body. The multi-layer coil conductor includes a first coil layer and a second coil layer disposed about the first coil layer. The first and second coil layers are configured such that the multi-layer coil conductor has an axial stiffness substantially equal to an axial stiffness of the lead body adjacent to the multi-layer coil conductor. | 06-20-2013 |
20140031661 | TEMPORARY IMPLANTABLE MEDICAL ELECTRICAL STIMULATION LEAD - A temporary implantable medical device lead includes a connector configured to connect the lead to an external control module. A helically coiled conductor includes a proximal end that is mechanically and electrically connected to the connector. The conductor includes a plurality of insulated filars. An insulative layer is removed from an uninsulated portion of each of the filars near a distal end of the conductor. The uninsulated portion of each of the filars is exposed at an outer surface of the conductor such that the exposed uninsulated portions of the filars define a plurality of electrodes at longitudinally spaced sections near the distal end of the conductor. | 01-30-2014 |
20140081363 | FIXATION MECHANISMS FOR TEMPORARY IMPLANTABLE MEDICAL ELECTRICAL STIMULATION LEADS - A temporary implantable medical device lead includes a connector configured to connect the lead to an external control module, a helically coiled conductor including a plurality of insulated filars and having a proximal end mechanically and electrically connected to the connector, and one or more electrodes defined by uninsulated portions of the helically coiled conductor. The temporary implantable medical device lead also includes one or more tine assemblies proximal to the one or more electrodes and configured to inhibit axial migration of the temporary implantable medical device lead, each tine assembly including a base and a plurality of tines extending from the base. | 03-20-2014 |
20140128948 | FIXATION AND STRAIN RELIEF ELEMENT FOR TEMPORARY THERAPY DELIVERY DEVICE - A temporary neurostimulation lead may be secured relative to patient using a fixation device. The fixation device may include an attachment portion that is configured to be releasably fixated to the patient and a lead fixation portion that is configured to secure the temporary neurostimulation lead. The fixation device can be adhesively fixated to the patient via the attachment portion and the temporary neurostimulation lead can be fixated to the lead fixation portion of the fixation device. | 05-08-2014 |
20140135884 | PEEL-AWAY IS-4/DF-4 LEAD IMPLANT TOOL WITH ELECTRICAL CONTACTS - A peel-away lead implant tool is described. The peel away lead implant tool is adapted to be disposed over the terminal connector of a lead during an implantation procedure to protect the terminal connector. The peel-away lead implant tool includes a flexible polymer sheath including electrical contacts formed in a contact region of the sheath. The electrical contacts can be either metal foil contacts or conductive polymer contacts and extend from an outer surface to an inner surface of the sheath such that when the testing apparatus is coupled to the lead implant tool, the electrical contacts are pressed into electrical contact with the ring electrodes located on the terminal connector. The lead implant tool also includes various removal means facilitating the easy removal of the implant tool from the terminal connector when the implantation procedure is complete. | 05-15-2014 |
20140155972 | MRI CONDITIONALLY SAFE LEAD WITH LOW-PROFILE CONDUCTOR FOR LONGITUDINAL EXPANSION - An implantable electrical lead includes a lead body and a multi-layer coil conductor extending within the lead body. The multi-layer coil conductor includes a first coil layer and a second coil layer disposed about the first coil layer. The first and second coil layers are configured such that the multi-layer coil conductor has an axial stiffness substantially equal to an axial stiffness of the lead body adjacent to the multi-layer coil conductor. | 06-05-2014 |
Patent application number | Description | Published |
20150297905 | SYSTEMS AND METHODS FOR LEADLESS PACING AND SHOCK THERAPY - Techniques and systems for monitoring cardiac arrhythmias and delivering electrical stimulation therapy using a subcutaneous implantable cardioverter defibrillator (SICD) and a leadless pacing device (LPD) are described. For example, the SICD may detect a tachyarrhythmia within a first electrical signal from a heart and determine, based on the tachyarrhythmia, to deliver anti-tachyarrhythmia shock therapy to the patient to treat the detected arrhythmia. The LPD may receive communication from the SICD requesting the LPD deliver anti-tachycardia pacing to the heart and determine, based on a second electrical signal from the heart sensed by the LPD, whether to deliver anti-tachycardia pacing (ATP) to the heart. In this manner, the SICD and LPD may communicate to coordinate ATP and/or cardioversion/defibrillation therapy. In another example, the LPD may be configured to deliver post-shock pacing after detecting delivery of anti-tachyarrhythmia shock therapy. | 10-22-2015 |
20160067486 | FAR-FIELD R-WAVE DETECTION TO CONTROL ATRIAL PACE TIMING IN A DUAL-CHAMBER LEADLESS PACEMAKER - A method for sensing far-field R-waves in a leadless, intracardiac pacemaker implanted in an atrium of a patient's heart may involve sensing an electrical signal generated by the heart with two electrodes and a first sensing channel and/or a second sensing channel of the pacemaker, comparing a first timing marker from the first sensing channel with a second timing marker from the second sensing channel, and either determining that the sensed signal is a P-wave, if the first and second timing markers indicate that the sensed signal was sensed by the first and second sensing channels within a predetermined threshold of time from one another, or determining that the sensed signal is a far-field R-wave, if the sensed signal is sensed by the second sensing channel and not sensed by the first sensing channel. | 03-10-2016 |
Patent application number | Description | Published |
20100191132 | Event Discrimination Using Unipolar and Bipolar Signal Differences - A medical device and associated method discriminate near-field and far-field events by sensing a bipolar signal and a unipolar signal at a tissue site, detecting an event in response to one of the bipolar and unipolar signals, and comparing an event feature determined from the bipolar signal to an event feature determined from the unipolar signal. | 07-29-2010 |
20100191301 | HYBRID SINGLE-CHAMBER TO SIMULTANEOUS PACING METHOD FOR DISCRIMINATION OF TACHYCARDIAS - A cardiac medical device and associated method control delivery of anti-tachycardia pacing (ATP) in response to detecting tachycardia. In one embodiment, an initial set of single chamber pacing pulses are delivered in a single one of the atrium and the ventricle, the other one of the atrium and the ventricle being a non-paced chamber during the initial set of single chamber pacing pulses. The device detects simultaneity between a sensed event in the non-paced chamber and one of the single chamber pacing pulses and delivers ATP in both the atrium and the ventricle in response to detecting the simultaneity. | 07-29-2010 |
20100198290 | DISTANCE-BASED ANALYSIS OF RETURN CYCLES FOR TACHYCARDIA DISCRIMINATION - A medical device and associated method classify a tachycardia according to a site of origin of the tachycardia. Cardiac signals are sensed and a tachycardia event is detected in response to the sensed cardiac signals. Pacing pulses are delivered and a time interval corresponding to a distance traversed by a depolarization associated with the last one of the pacing pulses from a site of delivery of the plurality of pacing pulses is determined. The tachycardia event is classified according to a site of origin in response to the determined time interval. | 08-05-2010 |
20100228309 | METHOD AND DEVICE FOR DELIVERING ANTI-TACHYCARDIA PACING THERAPY - A method and device for delivering anti-tachycardia pacing (ATP) therapy that includes an electrode to sense cardiac signals and to deliver the therapy, sensing circuitry, electrically coupled to the electrode, to detect the tachycardia event in response to the sensed cardiac signals, and a processor to control delivery of the therapy. The processor determines whether a return cycle length generated subsequent to the delivery of the first plurality of pacing pulses is greater than a cycle length associated with the tachycardia event and less than a sum of the cycle length associated with the tachycardia event and a total prematurity associated with the first plurality of pacing pulses, and adjusts delivery of a second plurality of pacing pulses in response to the return cycle length not being greater than the cycle length associated with the tachycardia event and less than the sum of the cycle length associated with the tachycardia event and the total prematurity associated with the first plurality of pacing pulses. | 09-09-2010 |
20100241180 | COMBINED HEMODYNAMIC AND EGM-BASED ARRHYTHMIA DETECTION - A medical device and associated method for detecting arrhythmias that includes electrodes for sensing cardiac electrical signals and a hemodynamic sensor for sensing a hemodynamic signal. An episode of cardiac electrical event intervals meeting cardiac arrhythmia detection criteria is detected from the sensed electrical signals. Cardiac mechanical events and/or cardiac mechanical event intervals are measured from the hemodynamic signal and used to withhold or confirm a cardiac arrhythmia detection of the episode. | 09-23-2010 |
20100241182 | COMBINED HEMODYNAMIC AND EGM-BASED ARRHYTHMIA DETECTION - A medical device and associated method for detecting arrhythmias that includes sensing cardiac electrical signals and cardiac hemodynamic signals, determining a long-term baseline hemodynamic measurement in response to a plurality of the sensed cardiac hemodynaic signals, detecting a period of increased metabolic demand in response to the sensed cardiac electrical signals, determining a sinus tachycardia baseline hemodynamic measurement in response sensing of cardiac hemododynamic signals during the detected period of increased metabolic demand, and detecting the arrhythmia and delivering therapy in response to one of only the sensed cardiac electrical signals and the sensed cardiac electrical signals in combination with one or both of the determined long-term baseline hemodynamic measurement and the sinus tachycardia baseline hemodynamic measurement | 09-23-2010 |
20110270109 | METHOD AND APPARATUS FOR DETECTING AND DISCRIMINATING TACHYCARDIA - A medical device and associated method obtaining cardiac event intervals corresponding to a tachycardia interval. Evidence of a rhythm breaking point is obtained in response to sensing a cardiac event having a morphology corresponding to a supraventricular beat. A non-treatable rhythm is detected in response to the plurality of cardiac event intervals and the evidence of the rhythm breaking point. | 11-03-2011 |
20140121541 | METHOD FOR CALCULATING AN ESTIMATE OF A TIME-VARYING PHYSIOLOGICAL VARIABLE - A medical device performs a method for computing an estimate of a physiological variable. The method includes sensing a physiological signal and measuring an event of the physiological signal. The device initializes a value of a long-term metric of the event measurement, wherein the long-term metric corresponds to a time interval correlated to a response time of the physiological variable to changes in the event. The estimate of the long-term metric is updated in a memory of the medical device using a previous long-term metric and a current measurement of the event. The device detects a need for computing the physiological variable and computes an estimate of the physiological variable using the updated long-term metric. | 05-01-2014 |
20140214104 | SYSTEMS AND METHODS FOR LEADLESS PACING AND SHOCK THERAPY - Techniques and systems for monitoring cardiac arrhythmias and delivering electrical stimulation therapy using a subcutaneous implantable cardioverter defibrillator (SICD) and a leadless pacing device (LPD) are described. For example, the SICD may detect a tachyarrhythmia within a first electrical signal from a heart and determine, based on the tachyarrhythmia, to deliver anti-tachyarrhythmia shock therapy to the patient to treat the detected arrhythmia. The LPD may receive communication from the SICD requesting the LPD deliver anti-tachycardia pacing to the heart and determine, based on a second electrical signal from the heart sensed by the LPD, whether to deliver anti-tachycardia pacing (ATP) to the heart. In this manner, the SICD and LPD may communicate to coordinate ATP and/or cardioversion/defibrillation therapy. In another example, the LPD may be configured to deliver post-shock pacing after detecting delivery of anti-tachyarrhythmia shock therapy. | 07-31-2014 |
20140276160 | SYSTEM AND METHOD FOR AVOIDING UNDERSENSING OF VENTRICULAR FIBRILLATION - A medical device and associated method for detecting and treating tachyarrhythmias acquires a cardiac signal using electrodes coupled to a sensing module. Cardiac events are sensed from the cardiac signal and a processing module computes a first morphology metric for each sensed cardiac event occurring during a time segment of the cardiac signal. The first morphology metrics corresponding to an event originating in a ventricular chamber are counted. The first processing module computes a second morphology metric for the time segment of the cardiac signal in response to the count of the first morphology metrics meeting a threshold number of events. The time segment is classified as a shockable segment in response to the second morphology metric meeting a detection criterion. | 09-18-2014 |
20140277221 | UTILIZATION OF MORPHOLOGY DISCRIMINATION AFTER T-WAVE OVERSENSING DETERMINATION FOR UNDERLYING RHYTHMS IN THE THERAPY ZONE - A medical device and method for detecting and classifying cardiac rhythm episodes that includes a sensing module to sense cardiac events; a therapy delivery module, and a detection module configured to determine intervals between the sensed cardiac events, determine a predetermined cardiac episode is occurring in response to the determined intervals, determine whether a ventricular rate is greater than an atrial rate in response to the determined intervals, determine whether oversensing is occurring in response to the ventricular rate being greater than the atrial rate, adjust the determined intervals in response to oversensing occurring to generate an adjusted ventricular rate, determine whether the cardiac episode is occurring in response to the adjusted ventricular rate, perform a supraventricular tachycardia (SVT) discrimination analysis in response to the cardiac episode occurring in response to the adjusted ventricular rate, and control the therapy delivery module to deliver therapy in response to the SVT discrimination analysis. | 09-18-2014 |
20140277222 | UTILIZATION OF MORPHOLOGY DISCRIMINATION AFTER UNDERSENSING DETERMINATION FOR UNDERLYING RHYTHMS IN THE THERAPY ZONE - A medical device and method for detecting and classifying cardiac rhythm episodes that includes a sensing module to sense cardiac events, a therapy delivery module, and a detection module configured to determine intervals between the sensed cardiac events, determine a predetermined cardiac episode is occurring in response to the determined intervals, determine whether a ventricular rate is greater than an atrial rate in response to the determined intervals, determine whether undersensing is occurring in response to the ventricular rate being greater than the atrial rate, perform a supraventricular tachycardia (SVT) discrimination analysis in response to undersensing occurring, and control the therapy delivery module to deliver therapy in response to the SVT discrimination analysis. | 09-18-2014 |