Catheter display showing tip angle and pressure

摘要

A method for displaying information includes receiving a measurement with respect to an invasive probe inside a body of a subject of at least one probe parameter, selected from a group of parameters consisting of a bend angle of the probe and a pressure on the probe. Responsively to the measurement, an icon is displayed on a display screen representing the at least one probe parameter for viewing by an operator of the probe.

主权项

1. A method for displaying information, comprising:
receiving a measurement with respect to an invasive probe comprising an insertion tube inside a body of a subject of at least one probe parameter, selected from a group of parameters consisting of a bend angle of the probe and a pressure on the probe, wherein the probe further comprises a resilient joint at a distal end of the insertion tube and a distal tip, wherein the resilient joint comprises a spring-loaded joint configured to permit axial displacement and angular deflection of the distal tip, and wherein the distal tip is configured to bend at the spring-loaded joint, and a magnetic position sensing assembly located within the probe comprising coils on opposite sides of the spring-loaded joint and wherein receiving the measurement comprises measuring the axial displacement and angular deflection of the distal tip due to engagement of tissue in the body by the distal tip by using the magnetic position sensing assembly to sense the position of the distal tip relative to the distal end of the insertion tube; and responsively to the measurement, displaying an icon on a display screen representing the at least one probe parameter for viewing by an operator of the probe, wherein displaying the icon shows both the bend angle and the pressure, the pressure being an indication and in proportion of both the axial displacement and angular deflection of the distal tip, and wherein the icon is articulated to show the bend angle and is colored to represent whether the pressure is within a pre-determined pressure range.