Abstract:
A robotic catheter control system includes a collision detection logic configured to determine a collision metric indicative of a collision between a medical device that is manipulated by the robotic control system and an object. The object may be an anatomical feature or can be another medical device, including another device being manipulated by the robotic control system. The collision detection logic produces virtual representations of the medical device and the object and uses these representation to determine collision. Geometrical solids, such as spheres, are used to represent the outer surfaces of the devices and the logic determines whether the respective surfaces intersect, thereby indicating collision. Collision avoidance involves estimating future device poses and then computing an alternate path computation so as avoid predicted collision(s).
Abstract:
A method for providing a localization system with detailed information regarding a catheter's construction, while at the same time preventing operator input errors, for use in a three-dimensional localization field, including providing a catheter having at least one feature, providing a catheter catalog for use by the localization system, wherein the catheter catalog comprises reference data relating to features of the catheter, placing the catheter into the localization field, creating a map with the localization field, locating the catheter on the map, and correlating features of the catheter within the localization field with measurements made by the localization system when the feature is at various locations.
Abstract:
A system and method for determining a position of a medical device within a body are provided. The system includes an electronic control unit that receives position signals from position sensors of a first type and a second type disposed on the device and applies a filter to each of the position signals to obtain filtered estimated positions for each sensor. The unit computes a spline connecting the position sensors of the first type responsive to the filtered estimated positions for the sensors and estimates a spline position for the sensor of the second type along the spline. The unit generates maps between the spline position and filtered and unfiltered estimated positions for the sensor of the second type and determines actual positions for the sensors of the first type responsive to the filtered estimated position for the sensors and a composite map of the two maps.
Abstract:
A medical device is provided comprising a shaft comprising a first segment and a second segment. The first segment is configured to buckle upon application of a first critical force. The second segment includes an outer surface and an inner surface and is configured to buckle upon application of a second critical force. The second critical force is lower than the first critical force. The medical device further comprises a coil disposed radially inwardly of the inner surface of the second segment.
Abstract:
A medical device positioner for use with a remote catheter guidance system (RCGS) is provided, which can address angular, lateral and/or translational misalignment of an elongate medical device between the RCGS and an access point on a patient's body. Such a medical device positioner can comprise a base configured to attach to a remote catheter guidance system and a first support member extending from the base and having a receiving portion for receiving at least a portion of the elongate medical device. The medical device positioner can further include a second support member movably coupled to the first support member and including a second receiving area sized and configured to receive at least a portion of the elongate medical device. The medical device positioner can also include first and second tube sections with at least a portion of the first tube section being adapted to be inserted into a vascular system of a patient at an access point. A joint septum can be included for connecting the first and second tube sections.
Abstract:
An elongate medical device may overcome be configured both for manual manipulation by a physician and for automatic manipulation by a remote catheter guidance system. Such an elongate medical device comprises a shaft having a proximal portion and a distal portion, a pull wire disposed in the shaft and affixed to the distal portion of the shaft, and a handle coupled with the proximal portion of the catheter shaft. The handle comprises a first mechanism configured for manual actuation of the pull wire so as to deflect the distal portion of the shaft, a second mechanism configured for remote actuation of the pull wire so as to deflect the distal portion of the shaft, and a mechanical interface configured to provide a remote catheter guidance system with a functional connection to the second mechanism.
Abstract:
A method for providing a localization system with detailed information regarding a catheter's construction, while at the same time preventing operator input errors, for use in a three-dimensional localization field, including providing a catheter having at least one feature, providing a catheter catalog for use by the localization system, wherein the catheter catalog comprises reference data relating to features of the catheter, placing the catheter into the localization field, creating a map with the localization field, locating the catheter on the map, and correlating features of the catheter within the localization field with measurements made by the localization system when the feature is at various locations.
Abstract:
A medical device is provided comprising a shaft comprising a first segment and a second segment. The first segment is configured to buckle upon application of a first critical force. The second segment includes an outer surface and an inner surface and is configured to buckle upon application of a second critical force. The second critical force is lower than the first critical force. The medical device further comprises a coil disposed radially inwardly of the inner surface of the second segment.
Abstract:
The present disclosure relates to a control system for user-guided robotic control of a medical device and includes an electronic control unit, a computer-readable memory coupled to the ECU, and a visualization system configured to provide a view of an anatomical model. The memory contains user interface logic configured to be executed by the ECU, and configured to obtain input from a touch screen display with respect to the view of an anatomical model. Control logic stored in the memory is also configured to be executed by said ECU and is configured to produce an actuation control signal responsive to the input to control actuation of a manipulator assembly so as to move the medical device.
Abstract:
A medical device is provided comprising a shaft comprising a first segment and a second segment. The first segment is configured to buckle upon application of a first critical force. The second segment includes an outer surface and an inner surface and is configured to buckle upon application of a second critical force. The second critical force is lower than the first critical force. The medical device further comprises a coil disposed radially inwardly of the inner surface of the second segment.