Patent application number | Description | Published |
20160113537 | ATRIAL ARRHYTHMIA DETECTION DURING VENTRICULAR PACING IN A CARDIAC MEDICAL DEVICE - A method and medical device for determining a cardiac event that includes determining classification factors in response to a sensed cardiac signal, and classifying the cardiac signal as one of a plurality of cardiac events in response to the determined classification factors. The classification factors include determining sensed event windows having predetermined interval pairs during a predetermined time period, determining whether a number of the determined sense event windows is less than an interval pair threshold, determining whether a number of intervals occurring during the predetermined time period and not within the sensed event windows that are less than a predetermined interval threshold is greater than a sensed interval threshold, determining whether a predetermined number of intervals occurring during the predetermined time period and not within the sensed event windows are less than a short interval count threshold, determining whether a predetermined number of intervals occurring during the predetermined time period that are either within the sensed event windows or not within the sensed event windows that are paced events is greater than a paced event threshold, and determining whether oversensing detection occurred during the predetermined event time period. | 04-28-2016 |
20160113577 | ATRIAL ARRHYTHMIA EPISODE DETECTION IN A CARDIAC MEDICAL DEVICE - A method and medical device for determining a cardiac episode that includes sensing a cardiac signal, identifying the signal sensed during a predetermined time interval as one of a cardiac event, a non-cardiac event, and an unclassified event, determining a number of identified cardiac events, determining a number of identified unclassified events, and determining whether the cardiac episode is occurring in response to the number of identified cardiac events being greater than a cardiac event count threshold and the number of identified unclassified events being less than an unclassified event count threshold. | 04-28-2016 |
Patent application number | Description | Published |
20130253552 | CONTROLLER FOR AN ATHERECTOMY DEVICE - A rotational atherectomy system may include an elongated, flexible drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient, an electric motor rotatably coupled to the proximal end of the drive shaft, the electric motor being capable of rotating the drive shaft, and control electronics, wherein the control electronics comprise a computer readable storage medium in communication with a processor, the computer readable storage medium having software stored thereon for monitoring and controlling the rotation of the electric motor and for monitoring and controlling delivery of saline to the drive shaft. | 09-26-2013 |
20140364883 | CONTROLLER FOR AN ATHERECTOMY DEVICE - A rotational atherectomy system may include an elongated, flexible drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient, an electric motor rotatably coupled to the proximal end of the drive shaft, the electric motor being capable of rotating the drive shaft, and control electronics, wherein the control electronics comprise a computer readable storage medium in communication with a processor, the computer readable storage medium having software stored thereon for monitoring and controlling the rotation of the electric motor and for monitoring and controlling delivery of saline to the drive shaft. | 12-11-2014 |
20140365691 | CONTROLLER FOR AN ATHERECTOMY DEVICE - A rotational atherectomy system may include an elongated, flexible drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient, an electric motor rotatably coupled to the proximal end of the drive shaft, the electric motor being capable of rotating the drive shaft, and control electronics, wherein the control electronics comprise a computer readable storage medium in communication with a processor, the computer readable storage medium having software stored thereon for monitoring and controlling the rotation of the electric motor and for monitoring and controlling delivery of saline to the drive shaft. | 12-11-2014 |
20140371770 | CONTROLLER FOR AN ATHERECTOMY DEVICE - A rotational atherectomy system may include an elongated, flexible drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient, an electric motor rotatably coupled to the proximal end of the drive shaft, the electric motor being capable of rotating the drive shaft, and control electronics, wherein the control electronics comprise a computer readable storage medium in communication with a processor, the computer readable storage medium having software stored thereon for monitoring and controlling the rotation of the electric motor and for monitoring and controlling delivery of saline to the drive shaft. | 12-18-2014 |
Patent application number | Description | Published |
20140277014 | ROTATIONAL ATHERECTOMY DEVICE WITH BIASING CLUTCH - A rotational atherectomy system may include a drive shaft, a motor, and a clutch with a threshold torque where the clutch may include a motor plate rotationally connected to the motor, a drive shaft plate rotationally connected to the drive shaft, and a biasing clutch configured to rotationally engage the motor plate and the drive shaft plate, wherein torques less than the threshold torque are transmitted completely between the motor plate and the drive shaft plate, which remain rotationally coupled by static friction, and wherein torques greater than the threshold torque cause the motor plate and the drive shaft plate to rotate relative to one another and cause a residual torque to be transmitted between the motor and the drive shaft, the residual torque being less than the threshold torque and being determined by a kinetic coefficient of friction. | 09-18-2014 |
20140316447 | DEVICES, SYSTEMS AND METHODS FOR A PILOTING TIP BUSHING FOR ROTATIONAL ATHERECTOMY - A high-speed rotational atherectomy device for opening a stenosis in an artery having a given diameter, comprising: a guide wire; a flexible elongated, rotatable drive shaft advanceable over the guide wire, the drive shaft having a proximal end and a distal end; an abrading head; and a piloting member fixedly attached to the drive shaft and disposed distally of the abrading head. When the piloting member is advanced to a stenosis, the piloting member creates a piloting hole when the drive shaft at a sufficient rotational speed. The eccentric abrading head is then advanced through the piloting hole and distally across the stenotic lesion, thereby opening the stenotic lesion to a diameter larger than the nominal diameter of the eccentric enlarged diameter section. | 10-23-2014 |
20140316448 | DEVICES, SYSTEMS AND METHODS FOR A GUIDE WIRE LOADER - The present disclosure pertains to a handheld device for loading a guide wire into a medical device. The device has a housing having a slot; a driving wheel disposed within a first portion and rotatably connected to a motor disposed within the housing; a plurality of compression wheels disposed within the second portion of the housing; and a switch disposed on an outer surface of the second portion, the switch in mechanical communication with the compression wheels. When a portion of the guide wire is inserted into the slot and the switch is actuated in a first direction, the compression wheels move toward the driving wheel to grip the guide wire. When the motor is on, the driving wheel rotates to move the guide wire in an axial direction and/or rotational direction. | 10-23-2014 |
20140316451 | ROTATIONAL ATHERECTOMY DEVICE WITH BIASING CLUTCH - A rotational atherectomy system may include a drive shaft, a motor, and a clutch with a threshold torque where the clutch may include a motor plate rotationally connected to the motor, a drive shaft plate rotationally connected to the drive shaft, and a biasing clutch configured to rotationally engage the motor plate and the drive shaft plate, wherein torques less than the threshold torque are transmitted completely between the motor plate and the drive shaft plate, which remain rotationally coupled by static friction, and wherein torques greater than the threshold torque cause the motor plate and the drive shaft plate to rotate relative to one another and cause a residual torque to be transmitted between the motor and the drive shaft, the residual torque being less than the threshold torque and being determined by a kinetic coefficient of friction. | 10-23-2014 |
20150089785 | METHOD OF ATTACHING AN ELEMENT TO A DRIVE SHAFT - A method for attaching a head to a drive shaft may include winding a wire to create a drive shaft, selecting a head, forming a tapered tip on a distal end of the drive shaft, placing the head on the tapered tip such that a distal end of the tapered tip extends from a distal end of the head, engaging the distal end of the tapered tip and turning down the drive shaft to create a turned down portion, advancing the head proximally over the turned down portion, and disengaging the distal end of the tapered tip wherein the drive shaft frictionally engages the head. | 04-02-2015 |
20150094745 | ATHERECTOMY DEVICE WITH ECCENTRIC CROWN - An atherectomy device may include an elongated, flexible drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient, a handle coupled to the proximal end of the drive shaft for controlling the drive shaft, and a head arranged proximate the distal end of the drive shaft wherein the head may include a middle portion having a substantially uninterrupted outer surface and substantially conically-shaped first and second end portions, wherein the middle portion and substantially conically-shaped end portions all have a bore extending therethrough adapted to frictionally engage a drive shaft. | 04-02-2015 |
20150094749 | DEVICES, SYSTEMS AND METHODS FOR A PILOTING TIP BUSHING FOR ROTATIONAL ATHERECTOMY - A high-speed rotational atherectomy device for opening a stenosis in an artery having a given diameter, comprising: a guide wire; a flexible elongated, rotatable drive shaft advanceable over the guide wire, the drive shaft having a proximal end and a distal end; and a piloting element fixedly attached to the drive shaft. When the piloting element is advanced to a stenosis, the piloting element creates a piloting hole when the drive shaft is rotated. | 04-02-2015 |
20150142028 | DEVICES, SYSTEMS AND METHODS FOR A PILOTING TIP BUSHING FOR ROTATIONAL ATHERECTOMY - A high-speed rotational atherectomy device for opening a stenosis in an artery having a given diameter, comprising: a guide wire; a flexible elongated, rotatable drive shaft advanceable over the guide wire, the drive shaft having a proximal end and a distal end; and a piloting member fixedly attached to the drive shaft. When the piloting member is advanced to a stenosis, the piloting member creates a piloting hole when the drive shaft is rotated. | 05-21-2015 |
20150209072 | ROTATIONAL ATHERECTOMY SYSTEMS AND METHODS WITH SHOCK ABSORBING ELEMENT - A rotational atherectomy system may include a drive shaft, a motor, and a clutch with a threshold torque where the clutch may include a motor plate rotationally connected to the motor, a drive shaft plate rotationally connected to the drive shaft, and a biasing clutch configured to rotationally engage the motor plate and the drive shaft plate, wherein torques less than the threshold torque are transmitted completely between the motor plate and the drive shaft plate, which remain rotationally coupled by static friction, and wherein torques greater than the threshold torque cause the motor plate and the drive shaft plate to rotate relative to one another and cause a residual torque to be transmitted between the motor and the drive shaft, the residual torque being less than the threshold torque and being determined by a kinetic coefficient of friction. | 07-30-2015 |
20150213733 | SIMULATION DEVICE - A simulation system may include a base with a working surface, an artery element configured to simulate an artery with a blockage and adapted to receive a distal portion of a handheld manually manipulated device, and a vascular pathway arranged on the working surface and configured for securing the artery element to the base. | 07-30-2015 |