Patent application number | Description | Published |
20090177242 | Apparatus and method for non-invasive induction of ventricular fibrillation - An apparatus and method for delivering an external shock pulse receive pacing pulses generated by a first device and a shock pulse generated by a second device. An output of the apparatus is coupled to patient electrodes and the apparatus controls delivery of the received pacing pulses to the output and delivery of the received shock pulse to the output. A control module, pacing control and shock control included in the apparatus cooperatively control delivery of the received shock pulse to the output at a predetermined delay after one of the received pacing pulses. | 07-09-2009 |
20100030229 | MEDICAL DEVICE SYSTEM AND APPARATUS FOR GUIDING THE PLACEMENT OF A SUBCUTANEOUS DEVICE - A medical device system for advancing a subcutaneous device to a desired implant site that includes a strap extending along a length from a proximal end to a distal end, a first flange and a second flange extending along a portion of the length of the strap, a base portion extending along a portion of the length of the strap between the first flange and the second flange, and an indentation extending from the proximal end to the distal end of the strap, the indentation formed by the first flange, the second flange, and the base portion, wherein the first flange and the second flange include curved bottom portions that make contact with and compress a tissue layer to position the tissue layer within the indentation during the placement of the subcutaneous device. | 02-04-2010 |
20100030230 | MEDICAL DEVICE SYSTEM AND APPARATUS FOR GUIDING THE PLACEMENT OF A SUBCUTANEOUS DEVICE - A medical device system for guiding placement of a subcutaneous medical device that includes a strap extending along a length from a proximal end to a distal end, a first flange and a second flange extending along a portion of the length of the strap, a base portion extending along a portion of the length of the strap between the first flange and the second flange, an orientation member extending along the strap to limit a predetermined radius of curvature of the strap, and an indentation extending from the proximal end to the distal end of the strap, the indentation formed by the first flange, the second flange, and the base portion, wherein the first flange and the second flange include curved bottom portions that make contact with and compress a tissue layer to position the tissue layer within the indentation during the placement of the subcutaneous device. | 02-04-2010 |
20130035748 | IMPLANT SYSTEM INCLUDING GUIDING ACCESSORY AND METHODS OF USE - A guiding accessory, for use in conjunction with a guidewire and a catheter of an implant system, facilitates passage of an elongate and flexible conductor of a relatively compact therapy delivery device to an implant site, for example, within the cardiac venous system, when a therapy generator of the device is held within a distal portion of the catheter, and the catheter, device and guiding accessory are advanced along the guidewire. The guiding accessory includes a helically extending wall that forms a lumen within which the device conductor and guidewire extend. After advancing the catheter, guiding accessory and device to the implant site, the helically extending wall is unwound from around the device conductor, for removal, preferably, by pulling proximally on a tension line, which is attached to a proximal end of the wall. | 02-07-2013 |
20150217119 | SELECTION OF OPTIMAL ACCELEROMETER SENSING AXIS FOR RATE RESPONSE IN LEADLESS PACEMAKER - A medical device and associated method record signals from each real axis of a multi-axis sensor. An optimal axis for monitoring a physiological signal of the patient is identified from the real axes of the multi-axis sensor and multiple virtual axes. Coordinates defining the optimal axis are stored as respective weighting factors of the signals from each real axis of the multi-axis sensor. A metric of the physiological signal is determined using the multi-axis sensor signals and the weighting factors. | 08-06-2015 |
20150305640 | IMPLANTABLE MEDICAL DEVICE (IMD) SENSING MODIFICATIONS RESPONSIVE TO DETECTED PACING PULSES - In situations in which an implantable medical device (IMD) (e.g., an extravascular ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the IMD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the IMD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the IMD includes a pace pulse detector that detects, based on the processing of sensed electrical signals, delivery of a pacing pulse from a second implantable medical device and blank, based on the detection of the pacing pulse, the sensed electrical signal to remove the pacing pulse from the sensed electrical signal. | 10-29-2015 |
20150305642 | PACE PULSE DETECTOR FOR AN IMPLANTABLE MEDICAL DEVICE - In situations in which an implantable medical device (e.g., a subcutaneous ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the subcutaneous ICD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the ICD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the ICD includes a first pace pulse detector configured to obtain a sensed electrical signal and analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics and a second pace pulse detector configured to obtain the sensed electrical signal and analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics. | 10-29-2015 |
20150306375 | IMPLANTABLE EXTRAVASCULAR ELECTRICAL STIMULATION LEAD HAVING IMPROVED SENSING AND PACING CAPABILITY - Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted are described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first segment and a second segment proximal to the first segment by a distance, a first electrical conductor extending from the proximal end of the lead body and electrically coupling to the first segment and the second segment of the defibrillation electrode, and at least one pace/sense electrode located between the first segment and the second segment of the defibrillation electrode. | 10-29-2015 |
20150306410 | IMPLANTABLE EXTRAVASCULAR ELECTRICAL STIMULATION LEAD HAVING IMPROVED SENSING AND PACING CAPABILITY - Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted as described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first electrode segment and a second electrode segment proximal to the first electrode segment by a distance. The leads may include at least one pace/sense electrode, which in some instances, is located between the first defibrillation electrode segment and the second defibrillation electrode segment. | 10-29-2015 |